2017-02-23 06:26:44 +08:00
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< title > Faiss: /data/users/hoss/faiss/index_io.cpp Source File< / title >
2017-02-23 06:26:44 +08:00
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2019-05-28 22:17:22 +08:00
< div class = "title" > /data/users/hoss/faiss/index_io.cpp< / div > < / div >
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2017-06-21 21:54:28 +08:00
< div class = "fragment" > < div class = "line" > < a name = "l00001" > < / a > < span class = "lineno" > 1< / span >   < span class = "comment" > /**< / span > < / div >
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< div class = "line" > < a name = "l00002" > < / a > < span class = "lineno" > 2< / span >   < span class = "comment" > * Copyright (c) Facebook, Inc. and its affiliates.< / span > < / div >
< div class = "line" > < a name = "l00003" > < / a > < span class = "lineno" > 3< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00004" > < / a > < span class = "lineno" > 4< / span >   < span class = "comment" > * This source code is licensed under the MIT license found in the< / span > < / div >
< div class = "line" > < a name = "l00005" > < / a > < span class = "lineno" > 5< / span >   < span class = "comment" > * LICENSE file in the root directory of this source tree.< / span > < / div >
< div class = "line" > < a name = "l00006" > < / a > < span class = "lineno" > 6< / span >   < span class = "comment" > */< / span > < / div >
< div class = "line" > < a name = "l00007" > < / a > < span class = "lineno" > 7< / span >   < / div >
< div class = "line" > < a name = "l00008" > < / a > < span class = "lineno" > 8< / span >   < span class = "comment" > // -*- c++ -*-< / span > < / div >
< div class = "line" > < a name = "l00009" > < / a > < span class = "lineno" > 9< / span >   < / div >
< div class = "line" > < a name = "l00010" > < / a > < span class = "lineno" > 10< / span >   < span class = "preprocessor" > #include " index_io.h" < / span > < / div >
< div class = "line" > < a name = "l00011" > < / a > < span class = "lineno" > 11< / span >   < / div >
< div class = "line" > < a name = "l00012" > < / a > < span class = "lineno" > 12< / span >   < span class = "preprocessor" > #include < cstdio> < / span > < / div >
< div class = "line" > < a name = "l00013" > < / a > < span class = "lineno" > 13< / span >   < span class = "preprocessor" > #include < cstdlib> < / span > < / div >
< div class = "line" > < a name = "l00014" > < / a > < span class = "lineno" > 14< / span >   < / div >
< div class = "line" > < a name = "l00015" > < / a > < span class = "lineno" > 15< / span >   < span class = "preprocessor" > #include < sys/mman.h> < / span > < / div >
< div class = "line" > < a name = "l00016" > < / a > < span class = "lineno" > 16< / span >   < span class = "preprocessor" > #include < sys/types.h> < / span > < / div >
< div class = "line" > < a name = "l00017" > < / a > < span class = "lineno" > 17< / span >   < span class = "preprocessor" > #include < sys/stat.h> < / span > < / div >
< div class = "line" > < a name = "l00018" > < / a > < span class = "lineno" > 18< / span >   < span class = "preprocessor" > #include < unistd.h> < / span > < / div >
< div class = "line" > < a name = "l00019" > < / a > < span class = "lineno" > 19< / span >   < / div >
< div class = "line" > < a name = "l00020" > < / a > < span class = "lineno" > 20< / span >   < span class = "preprocessor" > #include " FaissAssert.h" < / span > < / div >
< div class = "line" > < a name = "l00021" > < / a > < span class = "lineno" > 21< / span >   < span class = "preprocessor" > #include " AuxIndexStructures.h" < / span > < / div >
< div class = "line" > < a name = "l00022" > < / a > < span class = "lineno" > 22< / span >   < / div >
< div class = "line" > < a name = "l00023" > < / a > < span class = "lineno" > 23< / span >   < span class = "preprocessor" > #include " IndexFlat.h" < / span > < / div >
< div class = "line" > < a name = "l00024" > < / a > < span class = "lineno" > 24< / span >   < span class = "preprocessor" > #include " VectorTransform.h" < / span > < / div >
< div class = "line" > < a name = "l00025" > < / a > < span class = "lineno" > 25< / span >   < span class = "preprocessor" > #include " IndexLSH.h" < / span > < / div >
< div class = "line" > < a name = "l00026" > < / a > < span class = "lineno" > 26< / span >   < span class = "preprocessor" > #include " IndexPQ.h" < / span > < / div >
< div class = "line" > < a name = "l00027" > < / a > < span class = "lineno" > 27< / span >   < span class = "preprocessor" > #include " IndexIVF.h" < / span > < / div >
< div class = "line" > < a name = "l00028" > < / a > < span class = "lineno" > 28< / span >   < span class = "preprocessor" > #include " IndexIVFPQ.h" < / span > < / div >
< div class = "line" > < a name = "l00029" > < / a > < span class = "lineno" > 29< / span >   < span class = "preprocessor" > #include " IndexIVFFlat.h" < / span > < / div >
< div class = "line" > < a name = "l00030" > < / a > < span class = "lineno" > 30< / span >   < span class = "preprocessor" > #include " IndexIVFSpectralHash.h" < / span > < / div >
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< div class = "line" > < a name = "l00031" > < / a > < span class = "lineno" > 31< / span >   < span class = "preprocessor" > #include " MetaIndexes.h" < / span > < / div >
< div class = "line" > < a name = "l00032" > < / a > < span class = "lineno" > 32< / span >   < span class = "preprocessor" > #include " IndexScalarQuantizer.h" < / span > < / div >
< div class = "line" > < a name = "l00033" > < / a > < span class = "lineno" > 33< / span >   < span class = "preprocessor" > #include " IndexHNSW.h" < / span > < / div >
< div class = "line" > < a name = "l00034" > < / a > < span class = "lineno" > 34< / span >   < span class = "preprocessor" > #include " OnDiskInvertedLists.h" < / span > < / div >
< div class = "line" > < a name = "l00035" > < / a > < span class = "lineno" > 35< / span >   < span class = "preprocessor" > #include " IndexBinaryFlat.h" < / span > < / div >
< div class = "line" > < a name = "l00036" > < / a > < span class = "lineno" > 36< / span >   < span class = "preprocessor" > #include " IndexBinaryFromFloat.h" < / span > < / div >
< div class = "line" > < a name = "l00037" > < / a > < span class = "lineno" > 37< / span >   < span class = "preprocessor" > #include " IndexBinaryHNSW.h" < / span > < / div >
< div class = "line" > < a name = "l00038" > < / a > < span class = "lineno" > 38< / span >   < span class = "preprocessor" > #include " IndexBinaryIVF.h" < / span > < / div >
< div class = "line" > < a name = "l00039" > < / a > < span class = "lineno" > 39< / span >   < / div >
< div class = "line" > < a name = "l00040" > < / a > < span class = "lineno" > 40< / span >   < / div >
< div class = "line" > < a name = "l00041" > < / a > < span class = "lineno" > 41< / span >   < / div >
< div class = "line" > < a name = "l00042" > < / a > < span class = "lineno" > 42< / span >   < span class = "comment" > /*************************************************************< / span > < / div >
< div class = "line" > < a name = "l00043" > < / a > < span class = "lineno" > 43< / span >   < span class = "comment" > * The I/O format is the content of the class. For objects that are< / span > < / div >
< div class = "line" > < a name = "l00044" > < / a > < span class = "lineno" > 44< / span >   < span class = "comment" > * inherited, like Index, a 4-character-code (fourcc) indicates which< / span > < / div >
< div class = "line" > < a name = "l00045" > < / a > < span class = "lineno" > 45< / span >   < span class = "comment" > * child class this is an instance of.< / span > < / div >
< div class = "line" > < a name = "l00046" > < / a > < span class = "lineno" > 46< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00047" > < / a > < span class = "lineno" > 47< / span >   < span class = "comment" > * In this case, the fields of the parent class are written first,< / span > < / div >
< div class = "line" > < a name = "l00048" > < / a > < span class = "lineno" > 48< / span >   < span class = "comment" > * then the ones for the child classes. Note that this requires< / span > < / div >
< div class = "line" > < a name = "l00049" > < / a > < span class = "lineno" > 49< / span >   < span class = "comment" > * classes to be serialized to have a constructor without parameters,< / span > < / div >
< div class = "line" > < a name = "l00050" > < / a > < span class = "lineno" > 50< / span >   < span class = "comment" > * so that the fields can be filled in later. The default constructor< / span > < / div >
< div class = "line" > < a name = "l00051" > < / a > < span class = "lineno" > 51< / span >   < span class = "comment" > * should set reasonable defaults for all fields.< / span > < / div >
< div class = "line" > < a name = "l00052" > < / a > < span class = "lineno" > 52< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00053" > < / a > < span class = "lineno" > 53< / span >   < span class = "comment" > * The fourccs are assigned arbitrarily. When the class changed (added< / span > < / div >
< div class = "line" > < a name = "l00054" > < / a > < span class = "lineno" > 54< / span >   < span class = "comment" > * or deprecated fields), the fourcc can be replaced. New code should< / span > < / div >
< div class = "line" > < a name = "l00055" > < / a > < span class = "lineno" > 55< / span >   < span class = "comment" > * be able to read the old fourcc and fill in new classes.< / span > < / div >
< div class = "line" > < a name = "l00056" > < / a > < span class = "lineno" > 56< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00057" > < / a > < span class = "lineno" > 57< / span >   < span class = "comment" > * TODO: serialization to strings for use in Python pickle or Torch< / span > < / div >
< div class = "line" > < a name = "l00058" > < / a > < span class = "lineno" > 58< / span >   < span class = "comment" > * serialization.< / span > < / div >
< div class = "line" > < a name = "l00059" > < / a > < span class = "lineno" > 59< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00060" > < / a > < span class = "lineno" > 60< / span >   < span class = "comment" > * TODO: in this file, the read functions that encouter errors may< / span > < / div >
< div class = "line" > < a name = "l00061" > < / a > < span class = "lineno" > 61< / span >   < span class = "comment" > * leak memory.< / span > < / div >
< div class = "line" > < a name = "l00062" > < / a > < span class = "lineno" > 62< / span >   < span class = "comment" > **************************************************************/< / span > < / div >
< div class = "line" > < a name = "l00063" > < / a > < span class = "lineno" > 63< / span >   < / div >
< div class = "line" > < a name = "l00064" > < / a > < span class = "lineno" > 64< / span >   < / div >
< div class = "line" > < a name = "l00065" > < / a > < span class = "lineno" > 65< / span >   < / div >
< div class = "line" > < a name = "l00066" > < / a > < span class = "lineno" > 66< / span >   < span class = "keyword" > namespace < / span > faiss {< / div >
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< div class = "line" > < a name = "l00067" > < / a > < span class = "lineno" > 67< / span >   < / div >
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< div class = "line" > < a name = "l00068" > < / a > < span class = "lineno" > 68< / span >   < span class = "keyword" > static< / span > uint32_t fourcc (< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > sx[4]) {< / div >
< div class = "line" > < a name = "l00069" > < / a > < span class = "lineno" > 69< / span >   assert(4 == strlen(sx));< / div >
< div class = "line" > < a name = "l00070" > < / a > < span class = "lineno" > 70< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > unsigned< / span > < span class = "keywordtype" > char< / span > *x = (< span class = "keywordtype" > unsigned< / span > < span class = "keywordtype" > char< / span > *)sx;< / div >
< div class = "line" > < a name = "l00071" > < / a > < span class = "lineno" > 71< / span >   < span class = "keywordflow" > return< / span > x[0] | x[1] < < 8 | x[2] < < 16 | x[3] < < 24;< / div >
< div class = "line" > < a name = "l00072" > < / a > < span class = "lineno" > 72< / span >   }< / div >
< div class = "line" > < a name = "l00073" > < / a > < span class = "lineno" > 73< / span >   < / div >
< div class = "line" > < a name = "l00074" > < / a > < span class = "lineno" > 74< / span >   < span class = "comment" > /*************************************************************< / span > < / div >
< div class = "line" > < a name = "l00075" > < / a > < span class = "lineno" > 75< / span >   < span class = "comment" > * I/O macros< / span > < / div >
< div class = "line" > < a name = "l00076" > < / a > < span class = "lineno" > 76< / span >   < span class = "comment" > *< / span > < / div >
< div class = "line" > < a name = "l00077" > < / a > < span class = "lineno" > 77< / span >   < span class = "comment" > * we use macros so that we have a line number to report in abort< / span > < / div >
< div class = "line" > < a name = "l00078" > < / a > < span class = "lineno" > 78< / span >   < span class = "comment" > * (). This makes debugging a lot easier. The IOReader or IOWriter is< / span > < / div >
< div class = "line" > < a name = "l00079" > < / a > < span class = "lineno" > 79< / span >   < span class = "comment" > * always called f and thus is not passed in as a macro parameter.< / span > < / div >
< div class = "line" > < a name = "l00080" > < / a > < span class = "lineno" > 80< / span >   < span class = "comment" > **************************************************************/< / span > < / div >
< div class = "line" > < a name = "l00081" > < / a > < span class = "lineno" > 81< / span >   < / div >
< div class = "line" > < a name = "l00082" > < / a > < span class = "lineno" > 82< / span >   < / div >
< div class = "line" > < a name = "l00083" > < / a > < span class = "lineno" > 83< / span >   < span class = "preprocessor" > #define WRITEANDCHECK(ptr, n) { \< / span > < / div >
< div class = "line" > < a name = "l00084" > < / a > < span class = "lineno" > 84< / span >   < span class = "preprocessor" > size_t ret = (*f)(ptr, sizeof(*(ptr)), n); \< / span > < / div >
< div class = "line" > < a name = "l00085" > < / a > < span class = "lineno" > 85< / span >   < span class = "preprocessor" > FAISS_THROW_IF_NOT_FMT(ret == (n), \< / span > < / div >
< div class = "line" > < a name = "l00086" > < / a > < span class = "lineno" > 86< / span >   < span class = "preprocessor" > " write error in %s: %ld != %ld (%s)" , \< / span > < / div >
< div class = "line" > < a name = "l00087" > < / a > < span class = "lineno" > 87< / span >   < span class = "preprocessor" > f-> name.c_str(), ret, size_t(n), strerror(errno)); \< / span > < / div >
< div class = "line" > < a name = "l00088" > < / a > < span class = "lineno" > 88< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00089" > < / a > < span class = "lineno" > 89< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00090" > < / a > < span class = "lineno" > 90< / span >   < span class = "preprocessor" > #define READANDCHECK(ptr, n) { \< / span > < / div >
< div class = "line" > < a name = "l00091" > < / a > < span class = "lineno" > 91< / span >   < span class = "preprocessor" > size_t ret = (*f)(ptr, sizeof(*(ptr)), n); \< / span > < / div >
< div class = "line" > < a name = "l00092" > < / a > < span class = "lineno" > 92< / span >   < span class = "preprocessor" > FAISS_THROW_IF_NOT_FMT(ret == (n), \< / span > < / div >
< div class = "line" > < a name = "l00093" > < / a > < span class = "lineno" > 93< / span >   < span class = "preprocessor" > " read error in %s: %ld != %ld (%s)" , \< / span > < / div >
< div class = "line" > < a name = "l00094" > < / a > < span class = "lineno" > 94< / span >   < span class = "preprocessor" > f-> name.c_str(), ret, size_t(n), strerror(errno)); \< / span > < / div >
< div class = "line" > < a name = "l00095" > < / a > < span class = "lineno" > 95< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00096" > < / a > < span class = "lineno" > 96< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00097" > < / a > < span class = "lineno" > 97< / span >   < span class = "preprocessor" > #define WRITE1(x) WRITEANDCHECK(& (x), 1)< / span > < / div >
< div class = "line" > < a name = "l00098" > < / a > < span class = "lineno" > 98< / span >   < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define READ1(x) READANDCHECK(& (x), 1)< / span > < / div >
< div class = "line" > < a name = "l00099" > < / a > < span class = "lineno" > 99< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00100" > < / a > < span class = "lineno" > 100< / span >   < span class = "preprocessor" > #define WRITEVECTOR(vec) { \< / span > < / div >
< div class = "line" > < a name = "l00101" > < / a > < span class = "lineno" > 101< / span >   < span class = "preprocessor" > size_t size = (vec).size (); \< / span > < / div >
< div class = "line" > < a name = "l00102" > < / a > < span class = "lineno" > 102< / span >   < span class = "preprocessor" > WRITEANDCHECK (& size, 1); \< / span > < / div >
< div class = "line" > < a name = "l00103" > < / a > < span class = "lineno" > 103< / span >   < span class = "preprocessor" > WRITEANDCHECK ((vec).data (), size); \< / span > < / div >
< div class = "line" > < a name = "l00104" > < / a > < span class = "lineno" > 104< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00105" > < / a > < span class = "lineno" > 105< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00106" > < / a > < span class = "lineno" > 106< / span >   < span class = "comment" > // will fail if we write 256G of data at once...< / span > < / div >
< div class = "line" > < a name = "l00107" > < / a > < span class = "lineno" > 107< / span >   < span class = "preprocessor" > #define READVECTOR(vec) { \< / span > < / div >
< div class = "line" > < a name = "l00108" > < / a > < span class = "lineno" > 108< / span >   < span class = "preprocessor" > long size; \< / span > < / div >
< div class = "line" > < a name = "l00109" > < / a > < span class = "lineno" > 109< / span >   < span class = "preprocessor" > READANDCHECK (& size, 1); \< / span > < / div >
< div class = "line" > < a name = "l00110" > < / a > < span class = "lineno" > 110< / span >   < span class = "preprocessor" > FAISS_THROW_IF_NOT (size > = 0 & & size < (1L < < 40)); \< / span > < / div >
< div class = "line" > < a name = "l00111" > < / a > < span class = "lineno" > 111< / span >   < span class = "preprocessor" > (vec).resize (size); \< / span > < / div >
< div class = "line" > < a name = "l00112" > < / a > < span class = "lineno" > 112< / span >   < span class = "preprocessor" > READANDCHECK ((vec).data (), size); \< / span > < / div >
< div class = "line" > < a name = "l00113" > < / a > < span class = "lineno" > 113< / span >   < span class = "preprocessor" > }< / span > < / div >
< div class = "line" > < a name = "l00114" > < / a > < span class = "lineno" > 114< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l00115" > < / a > < span class = "lineno" > < a class = "line" href = "structfaiss_1_1ScopeFileCloser.html" > 115< / a > < / span >   < span class = "keyword" > struct < / span > < a class = "code" href = "structfaiss_1_1ScopeFileCloser.html" > ScopeFileCloser< / a > {< / div >
< div class = "line" > < a name = "l00116" > < / a > < span class = "lineno" > 116< / span >   FILE *f;< / div >
< div class = "line" > < a name = "l00117" > < / a > < span class = "lineno" > 117< / span >   < a class = "code" href = "structfaiss_1_1ScopeFileCloser.html" > ScopeFileCloser< / a > (FILE *f): f (f) {}< / div >
< div class = "line" > < a name = "l00118" > < / a > < span class = "lineno" > 118< / span >   ~< a class = "code" href = "structfaiss_1_1ScopeFileCloser.html" > ScopeFileCloser< / a > () {fclose (f); }< / div >
< div class = "line" > < a name = "l00119" > < / a > < span class = "lineno" > 119< / span >   };< / div >
< div class = "line" > < a name = "l00120" > < / a > < span class = "lineno" > 120< / span >   < / div >
< div class = "line" > < a name = "l00121" > < / a > < span class = "lineno" > 121< / span >   < / div >
< div class = "line" > < a name = "l00122" > < / a > < span class = "lineno" > 122< / span >   < span class = "keyword" > namespace < / span > {< / div >
< div class = "line" > < a name = "l00123" > < / a > < span class = "lineno" > 123< / span >   < / div >
< div class = "line" > < a name = "l00124" > < / a > < span class = "lineno" > 124< / span >   < span class = "keyword" > struct < / span > FileIOReader: < a class = "code" href = "structfaiss_1_1IOReader.html" > IOReader< / a > {< / div >
< div class = "line" > < a name = "l00125" > < / a > < span class = "lineno" > 125< / span >   FILE *f = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00126" > < / a > < span class = "lineno" > 126< / span >   < span class = "keywordtype" > bool< / span > need_close = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00127" > < / a > < span class = "lineno" > 127< / span >   < / div >
< div class = "line" > < a name = "l00128" > < / a > < span class = "lineno" > 128< / span >   FileIOReader(FILE *rf): f(rf) {}< / div >
< div class = "line" > < a name = "l00129" > < / a > < span class = "lineno" > 129< / span >   < / div >
< div class = "line" > < a name = "l00130" > < / a > < span class = "lineno" > 130< / span >   FileIOReader(< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > * fname)< / div >
< div class = "line" > < a name = "l00131" > < / a > < span class = "lineno" > 131< / span >   {< / div >
< div class = "line" > < a name = "l00132" > < / a > < span class = "lineno" > 132< / span >   name = fname;< / div >
< div class = "line" > < a name = "l00133" > < / a > < span class = "lineno" > 133< / span >   f = fopen(fname, < span class = "stringliteral" > " rb" < / span > );< / div >
< div class = "line" > < a name = "l00134" > < / a > < span class = "lineno" > 134< / span >   FAISS_THROW_IF_NOT_FMT (< / div >
< div class = "line" > < a name = "l00135" > < / a > < span class = "lineno" > 135< / span >   f, < span class = "stringliteral" > " could not open %s for reading: %s" < / span > ,< / div >
< div class = "line" > < a name = "l00136" > < / a > < span class = "lineno" > 136< / span >   fname, strerror(errno));< / div >
< div class = "line" > < a name = "l00137" > < / a > < span class = "lineno" > 137< / span >   need_close = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00138" > < / a > < span class = "lineno" > 138< / span >   }< / div >
< div class = "line" > < a name = "l00139" > < / a > < span class = "lineno" > 139< / span >   < / div >
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< div class = "line" > < a name = "l00140" > < / a > < span class = "lineno" > 140< / span >   ~FileIOReader()< span class = "keyword" > override < / span > {< / div >
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< div class = "line" > < a name = "l00141" > < / a > < span class = "lineno" > 141< / span >   < span class = "keywordflow" > if< / span > (need_close) {< / div >
< div class = "line" > < a name = "l00142" > < / a > < span class = "lineno" > 142< / span >   < span class = "keywordtype" > int< / span > ret = fclose(f);< / div >
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< div class = "line" > < a name = "l00143" > < / a > < span class = "lineno" > 143< / span >   < span class = "keywordflow" > if< / span > (ret != 0) {< span class = "comment" > // we cannot raise and exception in the destructor< / span > < / div >
< div class = "line" > < a name = "l00144" > < / a > < span class = "lineno" > 144< / span >   fprintf(stderr, < span class = "stringliteral" > " file %s close error: %s" < / span > ,< / div >
< div class = "line" > < a name = "l00145" > < / a > < span class = "lineno" > 145< / span >   name.c_str(), strerror(errno));< / div >
< div class = "line" > < a name = "l00146" > < / a > < span class = "lineno" > 146< / span >   }< / div >
< div class = "line" > < a name = "l00147" > < / a > < span class = "lineno" > 147< / span >   }< / div >
< div class = "line" > < a name = "l00148" > < / a > < span class = "lineno" > 148< / span >   }< / div >
< div class = "line" > < a name = "l00149" > < / a > < span class = "lineno" > 149< / span >   < / div >
< div class = "line" > < a name = "l00150" > < / a > < span class = "lineno" > 150< / span >   < span class = "keywordtype" > size_t< / span > operator()(< / div >
< div class = "line" > < a name = "l00151" > < / a > < span class = "lineno" > 151< / span >   < span class = "keywordtype" > void< / span > *ptr, < span class = "keywordtype" > size_t< / span > size, < span class = "keywordtype" > size_t< / span > nitems)< span class = "keyword" > override < / span > {< / div >
< div class = "line" > < a name = "l00152" > < / a > < span class = "lineno" > 152< / span >   < span class = "keywordflow" > return< / span > fread(ptr, size, nitems, f);< / div >
< div class = "line" > < a name = "l00153" > < / a > < span class = "lineno" > 153< / span >   }< / div >
< div class = "line" > < a name = "l00154" > < / a > < span class = "lineno" > 154< / span >   < / div >
< div class = "line" > < a name = "l00155" > < / a > < span class = "lineno" > 155< / span >   < span class = "keywordtype" > int< / span > fileno()< span class = "keyword" > override < / span > {< / div >
< div class = "line" > < a name = "l00156" > < / a > < span class = "lineno" > 156< / span >   return ::fileno (f);< / div >
< div class = "line" > < a name = "l00157" > < / a > < span class = "lineno" > 157< / span >   }< / div >
< div class = "line" > < a name = "l00158" > < / a > < span class = "lineno" > 158< / span >   < / div >
< div class = "line" > < a name = "l00159" > < / a > < span class = "lineno" > 159< / span >   };< / div >
< div class = "line" > < a name = "l00160" > < / a > < span class = "lineno" > 160< / span >   < / div >
< div class = "line" > < a name = "l00161" > < / a > < span class = "lineno" > 161< / span >   < span class = "keyword" > struct < / span > FileIOWriter: IOWriter {< / div >
< div class = "line" > < a name = "l00162" > < / a > < span class = "lineno" > 162< / span >   FILE *f = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00163" > < / a > < span class = "lineno" > 163< / span >   < span class = "keywordtype" > bool< / span > need_close = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00164" > < / a > < span class = "lineno" > 164< / span >   < / div >
< div class = "line" > < a name = "l00165" > < / a > < span class = "lineno" > 165< / span >   FileIOWriter(FILE *wf): f(wf) {}< / div >
< div class = "line" > < a name = "l00166" > < / a > < span class = "lineno" > 166< / span >   < / div >
< div class = "line" > < a name = "l00167" > < / a > < span class = "lineno" > 167< / span >   FileIOWriter(< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > * fname)< / div >
< div class = "line" > < a name = "l00168" > < / a > < span class = "lineno" > 168< / span >   {< / div >
< div class = "line" > < a name = "l00169" > < / a > < span class = "lineno" > 169< / span >   name = fname;< / div >
< div class = "line" > < a name = "l00170" > < / a > < span class = "lineno" > 170< / span >   f = fopen(fname, < span class = "stringliteral" > " wb" < / span > );< / div >
< div class = "line" > < a name = "l00171" > < / a > < span class = "lineno" > 171< / span >   FAISS_THROW_IF_NOT_FMT (< / div >
< div class = "line" > < a name = "l00172" > < / a > < span class = "lineno" > 172< / span >   f, < span class = "stringliteral" > " could not open %s for writing: %s" < / span > ,< / div >
< div class = "line" > < a name = "l00173" > < / a > < span class = "lineno" > 173< / span >   fname, strerror(errno));< / div >
< div class = "line" > < a name = "l00174" > < / a > < span class = "lineno" > 174< / span >   need_close = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00175" > < / a > < span class = "lineno" > 175< / span >   }< / div >
< div class = "line" > < a name = "l00176" > < / a > < span class = "lineno" > 176< / span >   < / div >
< div class = "line" > < a name = "l00177" > < / a > < span class = "lineno" > 177< / span >   ~FileIOWriter()< span class = "keyword" > override < / span > {< / div >
< div class = "line" > < a name = "l00178" > < / a > < span class = "lineno" > 178< / span >   < span class = "keywordflow" > if< / span > (need_close) {< / div >
< div class = "line" > < a name = "l00179" > < / a > < span class = "lineno" > 179< / span >   < span class = "keywordtype" > int< / span > ret = fclose(f);< / div >
< div class = "line" > < a name = "l00180" > < / a > < span class = "lineno" > 180< / span >   < span class = "keywordflow" > if< / span > (ret != 0) {< / div >
< div class = "line" > < a name = "l00181" > < / a > < span class = "lineno" > 181< / span >   < span class = "comment" > // we cannot raise and exception in the destructor< / span > < / div >
< div class = "line" > < a name = "l00182" > < / a > < span class = "lineno" > 182< / span >   fprintf(stderr, < span class = "stringliteral" > " file %s close error: %s" < / span > ,< / div >
< div class = "line" > < a name = "l00183" > < / a > < span class = "lineno" > 183< / span >   name.c_str(), strerror(errno));< / div >
< div class = "line" > < a name = "l00184" > < / a > < span class = "lineno" > 184< / span >   }< / div >
< div class = "line" > < a name = "l00185" > < / a > < span class = "lineno" > 185< / span >   }< / div >
< div class = "line" > < a name = "l00186" > < / a > < span class = "lineno" > 186< / span >   }< / div >
< div class = "line" > < a name = "l00187" > < / a > < span class = "lineno" > 187< / span >   < / div >
< div class = "line" > < a name = "l00188" > < / a > < span class = "lineno" > 188< / span >   < span class = "keywordtype" > size_t< / span > operator()(< / div >
< div class = "line" > < a name = "l00189" > < / a > < span class = "lineno" > 189< / span >   < span class = "keyword" > const< / span > < span class = "keywordtype" > void< / span > *ptr, < span class = "keywordtype" > size_t< / span > size, < span class = "keywordtype" > size_t< / span > nitems)< span class = "keyword" > override < / span > {< / div >
< div class = "line" > < a name = "l00190" > < / a > < span class = "lineno" > 190< / span >   < span class = "keywordflow" > return< / span > fwrite(ptr, size, nitems, f);< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00191" > < / a > < span class = "lineno" > 191< / span >   }< / div >
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< div class = "line" > < a name = "l00192" > < / a > < span class = "lineno" > 192< / span >   < span class = "keywordtype" > int< / span > fileno()< span class = "keyword" > override < / span > {< / div >
< div class = "line" > < a name = "l00193" > < / a > < span class = "lineno" > 193< / span >   return ::fileno (f);< / div >
< div class = "line" > < a name = "l00194" > < / a > < span class = "lineno" > 194< / span >   }< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00195" > < / a > < span class = "lineno" > 195< / span >   < / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l00196" > < / a > < span class = "lineno" > 196< / span >   };< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00197" > < / a > < span class = "lineno" > 197< / span >   < / div >
< div class = "line" > < a name = "l00198" > < / a > < span class = "lineno" > 198< / span >   < / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l00199" > < / a > < span class = "lineno" > 199< / span >   } < span class = "comment" > // namespace< / span > < / div >
< div class = "line" > < a name = "l00200" > < / a > < span class = "lineno" > 200< / span >   < / div >
< div class = "line" > < a name = "l00201" > < / a > < span class = "lineno" > 201< / span >   < / div >
< div class = "line" > < a name = "l00202" > < / a > < span class = "lineno" > 202< / span >   < span class = "comment" > /*************************************************************< / span > < / div >
< div class = "line" > < a name = "l00203" > < / a > < span class = "lineno" > 203< / span >   < span class = "comment" > * Write< / span > < / div >
< div class = "line" > < a name = "l00204" > < / a > < span class = "lineno" > 204< / span >   < span class = "comment" > **************************************************************/< / span > < / div >
< div class = "line" > < a name = "l00205" > < / a > < span class = "lineno" > 205< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > write_index_header (< span class = "keyword" > const< / span > Index *idx, IOWriter *f) {< / div >
< div class = "line" > < a name = "l00206" > < / a > < span class = "lineno" > 206< / span >   WRITE1 (idx-> d);< / div >
< div class = "line" > < a name = "l00207" > < / a > < span class = "lineno" > 207< / span >   WRITE1 (idx-> ntotal);< / div >
< div class = "line" > < a name = "l00208" > < / a > < span class = "lineno" > 208< / span >   < a class = "code" href = "structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea" > Index::idx_t< / a > dummy = 1 < < 20;< / div >
< div class = "line" > < a name = "l00209" > < / a > < span class = "lineno" > 209< / span >   WRITE1 (dummy);< / div >
< div class = "line" > < a name = "l00210" > < / a > < span class = "lineno" > 210< / span >   WRITE1 (dummy);< / div >
< div class = "line" > < a name = "l00211" > < / a > < span class = "lineno" > 211< / span >   WRITE1 (idx-> is_trained);< / div >
< div class = "line" > < a name = "l00212" > < / a > < span class = "lineno" > 212< / span >   WRITE1 (idx-> metric_type);< / div >
< div class = "line" > < a name = "l00213" > < / a > < span class = "lineno" > 213< / span >   }< / div >
< div class = "line" > < a name = "l00214" > < / a > < span class = "lineno" > 214< / span >   < / div >
< div class = "line" > < a name = "l00215" > < / a > < span class = "lineno" > 215< / span >   < span class = "keywordtype" > void< / span > write_VectorTransform (< span class = "keyword" > const< / span > VectorTransform *vt, IOWriter *f) {< / div >
< div class = "line" > < a name = "l00216" > < / a > < span class = "lineno" > 216< / span >   < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > LinearTransform * lt =< / div >
< div class = "line" > < a name = "l00217" > < / a > < span class = "lineno" > 217< / span >   dynamic_cast < const LinearTransform *> (vt)) {< / div >
< div class = "line" > < a name = "l00218" > < / a > < span class = "lineno" > 218< / span >   < span class = "keywordflow" > if< / span > (dynamic_cast< const RandomRotationMatrix *> (lt)) {< / div >
< div class = "line" > < a name = "l00219" > < / a > < span class = "lineno" > 219< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " rrot" < / span > );< / div >
< div class = "line" > < a name = "l00220" > < / a > < span class = "lineno" > 220< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00221" > < / a > < span class = "lineno" > 221< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > PCAMatrix * pca =< / div >
< div class = "line" > < a name = "l00222" > < / a > < span class = "lineno" > 222< / span >   dynamic_cast< const PCAMatrix *> (lt)) {< / div >
< div class = "line" > < a name = "l00223" > < / a > < span class = "lineno" > 223< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " PcAm" < / span > );< / div >
< div class = "line" > < a name = "l00224" > < / a > < span class = "lineno" > 224< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00225" > < / a > < span class = "lineno" > 225< / span >   WRITE1 (pca-> eigen_power);< / div >
< div class = "line" > < a name = "l00226" > < / a > < span class = "lineno" > 226< / span >   WRITE1 (pca-> random_rotation);< / div >
< div class = "line" > < a name = "l00227" > < / a > < span class = "lineno" > 227< / span >   WRITE1 (pca-> balanced_bins);< / div >
< div class = "line" > < a name = "l00228" > < / a > < span class = "lineno" > 228< / span >   WRITEVECTOR (pca-> mean);< / div >
< div class = "line" > < a name = "l00229" > < / a > < span class = "lineno" > 229< / span >   WRITEVECTOR (pca-> eigenvalues);< / div >
< div class = "line" > < a name = "l00230" > < / a > < span class = "lineno" > 230< / span >   WRITEVECTOR (pca-> PCAMat);< / div >
< div class = "line" > < a name = "l00231" > < / a > < span class = "lineno" > 231< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00232" > < / a > < span class = "lineno" > 232< / span >   < span class = "comment" > // generic LinearTransform (includes OPQ)< / span > < / div >
< div class = "line" > < a name = "l00233" > < / a > < span class = "lineno" > 233< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " LTra" < / span > );< / div >
< div class = "line" > < a name = "l00234" > < / a > < span class = "lineno" > 234< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00235" > < / a > < span class = "lineno" > 235< / span >   }< / div >
< div class = "line" > < a name = "l00236" > < / a > < span class = "lineno" > 236< / span >   WRITE1 (lt-> have_bias);< / div >
< div class = "line" > < a name = "l00237" > < / a > < span class = "lineno" > 237< / span >   WRITEVECTOR (lt-> A);< / div >
< div class = "line" > < a name = "l00238" > < / a > < span class = "lineno" > 238< / span >   WRITEVECTOR (lt-> b);< / div >
< div class = "line" > < a name = "l00239" > < / a > < span class = "lineno" > 239< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > RemapDimensionsTransform *rdt =< / div >
< div class = "line" > < a name = "l00240" > < / a > < span class = "lineno" > 240< / span >   dynamic_cast< const RemapDimensionsTransform *> (vt)) {< / div >
< div class = "line" > < a name = "l00241" > < / a > < span class = "lineno" > 241< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " RmDT" < / span > );< / div >
< div class = "line" > < a name = "l00242" > < / a > < span class = "lineno" > 242< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00243" > < / a > < span class = "lineno" > 243< / span >   WRITEVECTOR (rdt-> map);< / div >
< div class = "line" > < a name = "l00244" > < / a > < span class = "lineno" > 244< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > NormalizationTransform *nt =< / div >
< div class = "line" > < a name = "l00245" > < / a > < span class = "lineno" > 245< / span >   dynamic_cast< const NormalizationTransform *> (vt)) {< / div >
< div class = "line" > < a name = "l00246" > < / a > < span class = "lineno" > 246< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " VNrm" < / span > );< / div >
< div class = "line" > < a name = "l00247" > < / a > < span class = "lineno" > 247< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00248" > < / a > < span class = "lineno" > 248< / span >   WRITE1 (nt-> norm);< / div >
< div class = "line" > < a name = "l00249" > < / a > < span class = "lineno" > 249< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > CenteringTransform *ct =< / div >
< div class = "line" > < a name = "l00250" > < / a > < span class = "lineno" > 250< / span >   dynamic_cast< const CenteringTransform *> (vt)) {< / div >
< div class = "line" > < a name = "l00251" > < / a > < span class = "lineno" > 251< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " VCnt" < / span > );< / div >
< div class = "line" > < a name = "l00252" > < / a > < span class = "lineno" > 252< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00253" > < / a > < span class = "lineno" > 253< / span >   WRITEVECTOR (ct-> mean);< / div >
< div class = "line" > < a name = "l00254" > < / a > < span class = "lineno" > 254< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00255" > < / a > < span class = "lineno" > 255< / span >   FAISS_THROW_MSG (< span class = "stringliteral" > " cannot serialize this" < / span > );< / div >
< div class = "line" > < a name = "l00256" > < / a > < span class = "lineno" > 256< / span >   }< / div >
< div class = "line" > < a name = "l00257" > < / a > < span class = "lineno" > 257< / span >   < span class = "comment" > // common fields< / span > < / div >
< div class = "line" > < a name = "l00258" > < / a > < span class = "lineno" > 258< / span >   WRITE1 (vt-> d_in);< / div >
< div class = "line" > < a name = "l00259" > < / a > < span class = "lineno" > 259< / span >   WRITE1 (vt-> d_out);< / div >
< div class = "line" > < a name = "l00260" > < / a > < span class = "lineno" > 260< / span >   WRITE1 (vt-> is_trained);< / div >
< div class = "line" > < a name = "l00261" > < / a > < span class = "lineno" > 261< / span >   }< / div >
< div class = "line" > < a name = "l00262" > < / a > < span class = "lineno" > 262< / span >   < / div >
< div class = "line" > < a name = "l00263" > < / a > < span class = "lineno" > 263< / span >   < span class = "keywordtype" > void< / span > write_ProductQuantizer (< span class = "keyword" > const< / span > ProductQuantizer *pq, IOWriter *f) {< / div >
< div class = "line" > < a name = "l00264" > < / a > < span class = "lineno" > 264< / span >   WRITE1 (pq-> d);< / div >
< div class = "line" > < a name = "l00265" > < / a > < span class = "lineno" > 265< / span >   WRITE1 (pq-> M);< / div >
< div class = "line" > < a name = "l00266" > < / a > < span class = "lineno" > 266< / span >   WRITE1 (pq-> nbits);< / div >
< div class = "line" > < a name = "l00267" > < / a > < span class = "lineno" > 267< / span >   WRITEVECTOR (pq-> centroids);< / div >
< div class = "line" > < a name = "l00268" > < / a > < span class = "lineno" > 268< / span >   }< / div >
< div class = "line" > < a name = "l00269" > < / a > < span class = "lineno" > 269< / span >   < / div >
< div class = "line" > < a name = "l00270" > < / a > < span class = "lineno" > 270< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > write_ScalarQuantizer (< / div >
< div class = "line" > < a name = "l00271" > < / a > < span class = "lineno" > 271< / span >   < span class = "keyword" > const< / span > ScalarQuantizer *ivsc, IOWriter *f) {< / div >
< div class = "line" > < a name = "l00272" > < / a > < span class = "lineno" > 272< / span >   WRITE1 (ivsc-> qtype);< / div >
< div class = "line" > < a name = "l00273" > < / a > < span class = "lineno" > 273< / span >   WRITE1 (ivsc-> rangestat);< / div >
< div class = "line" > < a name = "l00274" > < / a > < span class = "lineno" > 274< / span >   WRITE1 (ivsc-> rangestat_arg);< / div >
< div class = "line" > < a name = "l00275" > < / a > < span class = "lineno" > 275< / span >   WRITE1 (ivsc-> d);< / div >
< div class = "line" > < a name = "l00276" > < / a > < span class = "lineno" > 276< / span >   WRITE1 (ivsc-> code_size);< / div >
< div class = "line" > < a name = "l00277" > < / a > < span class = "lineno" > 277< / span >   WRITEVECTOR (ivsc-> trained);< / div >
< div class = "line" > < a name = "l00278" > < / a > < span class = "lineno" > 278< / span >   }< / div >
< div class = "line" > < a name = "l00279" > < / a > < span class = "lineno" > 279< / span >   < / div >
< div class = "line" > < a name = "l00280" > < / a > < span class = "lineno" > 280< / span >   < span class = "keywordtype" > void< / span > write_InvertedLists (< span class = "keyword" > const< / span > InvertedLists *ils, IOWriter *f) {< / div >
< div class = "line" > < a name = "l00281" > < / a > < span class = "lineno" > 281< / span >   < span class = "keywordflow" > if< / span > (ils == < span class = "keyword" > nullptr< / span > ) {< / div >
< div class = "line" > < a name = "l00282" > < / a > < span class = "lineno" > 282< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " il00" < / span > );< / div >
< div class = "line" > < a name = "l00283" > < / a > < span class = "lineno" > 283< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00284" > < / a > < span class = "lineno" > 284< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & ails =< / div >
< div class = "line" > < a name = "l00285" > < / a > < span class = "lineno" > 285< / span >   dynamic_cast< const ArrayInvertedLists *> (ils)) {< / div >
< div class = "line" > < a name = "l00286" > < / a > < span class = "lineno" > 286< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " ilar" < / span > );< / div >
< div class = "line" > < a name = "l00287" > < / a > < span class = "lineno" > 287< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00288" > < / a > < span class = "lineno" > 288< / span >   WRITE1 (ails-> nlist);< / div >
< div class = "line" > < a name = "l00289" > < / a > < span class = "lineno" > 289< / span >   WRITE1 (ails-> code_size);< / div >
< div class = "line" > < a name = "l00290" > < / a > < span class = "lineno" > 290< / span >   < span class = "comment" > // here we store either as a full or a sparse data buffer< / span > < / div >
< div class = "line" > < a name = "l00291" > < / a > < span class = "lineno" > 291< / span >   < span class = "keywordtype" > size_t< / span > n_non0 = 0;< / div >
< div class = "line" > < a name = "l00292" > < / a > < span class = "lineno" > 292< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ails-> nlist; i++) {< / div >
< div class = "line" > < a name = "l00293" > < / a > < span class = "lineno" > 293< / span >   < span class = "keywordflow" > if< / span > (ails-> ids[i].size() > 0)< / div >
< div class = "line" > < a name = "l00294" > < / a > < span class = "lineno" > 294< / span >   n_non0++;< / div >
< div class = "line" > < a name = "l00295" > < / a > < span class = "lineno" > 295< / span >   }< / div >
< div class = "line" > < a name = "l00296" > < / a > < span class = "lineno" > 296< / span >   < span class = "keywordflow" > if< / span > (n_non0 > ails-> nlist / 2) {< / div >
< div class = "line" > < a name = "l00297" > < / a > < span class = "lineno" > 297< / span >   uint32_t list_type = fourcc(< span class = "stringliteral" > " full" < / span > );< / div >
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< div class = "line" > < a name = "l00298" > < / a > < span class = "lineno" > 298< / span >   WRITE1 (list_type);< / div >
< div class = "line" > < a name = "l00299" > < / a > < span class = "lineno" > 299< / span >   std::vector< size_t> sizes;< / div >
< div class = "line" > < a name = "l00300" > < / a > < span class = "lineno" > 300< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ails-> nlist; i++) {< / div >
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< div class = "line" > < a name = "l00301" > < / a > < span class = "lineno" > 301< / span >   sizes.push_back (ails-> ids[i].size());< / div >
< div class = "line" > < a name = "l00302" > < / a > < span class = "lineno" > 302< / span >   }< / div >
< div class = "line" > < a name = "l00303" > < / a > < span class = "lineno" > 303< / span >   WRITEVECTOR (sizes);< / div >
< div class = "line" > < a name = "l00304" > < / a > < span class = "lineno" > 304< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00305" > < / a > < span class = "lineno" > 305< / span >   < span class = "keywordtype" > int< / span > list_type = fourcc(< span class = "stringliteral" > " sprs" < / span > ); < span class = "comment" > // sparse< / span > < / div >
< div class = "line" > < a name = "l00306" > < / a > < span class = "lineno" > 306< / span >   WRITE1 (list_type);< / div >
< div class = "line" > < a name = "l00307" > < / a > < span class = "lineno" > 307< / span >   std::vector< size_t> sizes;< / div >
< div class = "line" > < a name = "l00308" > < / a > < span class = "lineno" > 308< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ails-> nlist; i++) {< / div >
< div class = "line" > < a name = "l00309" > < / a > < span class = "lineno" > 309< / span >   < span class = "keywordtype" > size_t< / span > n = ails-> ids[i].size();< / div >
< div class = "line" > < a name = "l00310" > < / a > < span class = "lineno" > 310< / span >   < span class = "keywordflow" > if< / span > (n > 0) {< / div >
< div class = "line" > < a name = "l00311" > < / a > < span class = "lineno" > 311< / span >   sizes.push_back (i);< / div >
< div class = "line" > < a name = "l00312" > < / a > < span class = "lineno" > 312< / span >   sizes.push_back (n);< / div >
< div class = "line" > < a name = "l00313" > < / a > < span class = "lineno" > 313< / span >   }< / div >
< div class = "line" > < a name = "l00314" > < / a > < span class = "lineno" > 314< / span >   }< / div >
< div class = "line" > < a name = "l00315" > < / a > < span class = "lineno" > 315< / span >   WRITEVECTOR (sizes);< / div >
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< div class = "line" > < a name = "l00316" > < / a > < span class = "lineno" > 316< / span >   }< / div >
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< div class = "line" > < a name = "l00317" > < / a > < span class = "lineno" > 317< / span >   < span class = "comment" > // make a single contiguous data buffer (useful for mmapping)< / span > < / div >
< div class = "line" > < a name = "l00318" > < / a > < span class = "lineno" > 318< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ails-> nlist; i++) {< / div >
< div class = "line" > < a name = "l00319" > < / a > < span class = "lineno" > 319< / span >   < span class = "keywordtype" > size_t< / span > n = ails-> ids[i].size();< / div >
< div class = "line" > < a name = "l00320" > < / a > < span class = "lineno" > 320< / span >   < span class = "keywordflow" > if< / span > (n > 0) {< / div >
< div class = "line" > < a name = "l00321" > < / a > < span class = "lineno" > 321< / span >   WRITEANDCHECK (ails-> codes[i].data(), n * ails-> code_size);< / div >
< div class = "line" > < a name = "l00322" > < / a > < span class = "lineno" > 322< / span >   WRITEANDCHECK (ails-> ids[i].data(), n);< / div >
< div class = "line" > < a name = "l00323" > < / a > < span class = "lineno" > 323< / span >   }< / div >
< div class = "line" > < a name = "l00324" > < / a > < span class = "lineno" > 324< / span >   }< / div >
< div class = "line" > < a name = "l00325" > < / a > < span class = "lineno" > 325< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > < span class = "keyword" > auto< / span > & od =< / div >
< div class = "line" > < a name = "l00326" > < / a > < span class = "lineno" > 326< / span >   dynamic_cast< const OnDiskInvertedLists *> (ils)) {< / div >
< div class = "line" > < a name = "l00327" > < / a > < span class = "lineno" > 327< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " ilod" < / span > );< / div >
< div class = "line" > < a name = "l00328" > < / a > < span class = "lineno" > 328< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00329" > < / a > < span class = "lineno" > 329< / span >   WRITE1 (ils-> nlist);< / div >
< div class = "line" > < a name = "l00330" > < / a > < span class = "lineno" > 330< / span >   WRITE1 (ils-> code_size);< / div >
< div class = "line" > < a name = "l00331" > < / a > < span class = "lineno" > 331< / span >   < span class = "comment" > // this is a POD object< / span > < / div >
< div class = "line" > < a name = "l00332" > < / a > < span class = "lineno" > 332< / span >   WRITEVECTOR (od-> lists);< / div >
< div class = "line" > < a name = "l00333" > < / a > < span class = "lineno" > 333< / span >   < / div >
< div class = "line" > < a name = "l00334" > < / a > < span class = "lineno" > 334< / span >   {< / div >
< div class = "line" > < a name = "l00335" > < / a > < span class = "lineno" > 335< / span >   std::vector< OnDiskInvertedLists::Slot> v(< / div >
< div class = "line" > < a name = "l00336" > < / a > < span class = "lineno" > 336< / span >   od-> slots.begin(), od-> slots.end());< / div >
< div class = "line" > < a name = "l00337" > < / a > < span class = "lineno" > 337< / span >   WRITEVECTOR(v);< / div >
< div class = "line" > < a name = "l00338" > < / a > < span class = "lineno" > 338< / span >   }< / div >
< div class = "line" > < a name = "l00339" > < / a > < span class = "lineno" > 339< / span >   {< / div >
< div class = "line" > < a name = "l00340" > < / a > < span class = "lineno" > 340< / span >   std::vector< char> x(od-> filename.begin(), od-> filename.end());< / div >
< div class = "line" > < a name = "l00341" > < / a > < span class = "lineno" > 341< / span >   WRITEVECTOR(x);< / div >
< div class = "line" > < a name = "l00342" > < / a > < span class = "lineno" > 342< / span >   }< / div >
< div class = "line" > < a name = "l00343" > < / a > < span class = "lineno" > 343< / span >   WRITE1(od-> totsize);< / div >
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< div class = "line" > < a name = "l00344" > < / a > < span class = "lineno" > 344< / span >   < / div >
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< div class = "line" > < a name = "l00345" > < / a > < span class = "lineno" > 345< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00346" > < / a > < span class = "lineno" > 346< / span >   fprintf(stderr, < span class = "stringliteral" > " WARN! write_InvertedLists: unsupported invlist type, " < / span > < / div >
< div class = "line" > < a name = "l00347" > < / a > < span class = "lineno" > 347< / span >   < span class = "stringliteral" > " saving null invlist\n" < / span > );< / div >
< div class = "line" > < a name = "l00348" > < / a > < span class = "lineno" > 348< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " il00" < / span > );< / div >
< div class = "line" > < a name = "l00349" > < / a > < span class = "lineno" > 349< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00350" > < / a > < span class = "lineno" > 350< / span >   }< / div >
< div class = "line" > < a name = "l00351" > < / a > < span class = "lineno" > 351< / span >   }< / div >
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< div class = "line" > < a name = "l00352" > < / a > < span class = "lineno" > 352< / span >   < / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l00353" > < / a > < span class = "lineno" > 353< / span >   < / div >
< div class = "line" > < a name = "l00354" > < / a > < span class = "lineno" > 354< / span >   < span class = "keywordtype" > void< / span > write_ProductQuantizer (< span class = "keyword" > const< / span > ProductQuantizer*pq, < span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname) {< / div >
< div class = "line" > < a name = "l00355" > < / a > < span class = "lineno" > 355< / span >   FileIOWriter writer(fname);< / div >
< div class = "line" > < a name = "l00356" > < / a > < span class = "lineno" > 356< / span >   write_ProductQuantizer (pq, & writer);< / div >
< div class = "line" > < a name = "l00357" > < / a > < span class = "lineno" > 357< / span >   }< / div >
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< div class = "line" > < a name = "l00358" > < / a > < span class = "lineno" > 358< / span >   < / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l00359" > < / a > < span class = "lineno" > 359< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > write_HNSW (< span class = "keyword" > const< / span > HNSW *hnsw, IOWriter *f) {< / div >
< div class = "line" > < a name = "l00360" > < / a > < span class = "lineno" > 360< / span >   < / div >
< div class = "line" > < a name = "l00361" > < / a > < span class = "lineno" > 361< / span >   WRITEVECTOR (hnsw-> assign_probas);< / div >
< div class = "line" > < a name = "l00362" > < / a > < span class = "lineno" > 362< / span >   WRITEVECTOR (hnsw-> cum_nneighbor_per_level);< / div >
< div class = "line" > < a name = "l00363" > < / a > < span class = "lineno" > 363< / span >   WRITEVECTOR (hnsw-> levels);< / div >
< div class = "line" > < a name = "l00364" > < / a > < span class = "lineno" > 364< / span >   WRITEVECTOR (hnsw-> offsets);< / div >
< div class = "line" > < a name = "l00365" > < / a > < span class = "lineno" > 365< / span >   WRITEVECTOR (hnsw-> neighbors);< / div >
< div class = "line" > < a name = "l00366" > < / a > < span class = "lineno" > 366< / span >   < / div >
< div class = "line" > < a name = "l00367" > < / a > < span class = "lineno" > 367< / span >   WRITE1 (hnsw-> entry_point);< / div >
< div class = "line" > < a name = "l00368" > < / a > < span class = "lineno" > 368< / span >   WRITE1 (hnsw-> max_level);< / div >
< div class = "line" > < a name = "l00369" > < / a > < span class = "lineno" > 369< / span >   WRITE1 (hnsw-> efConstruction);< / div >
< div class = "line" > < a name = "l00370" > < / a > < span class = "lineno" > 370< / span >   WRITE1 (hnsw-> efSearch);< / div >
< div class = "line" > < a name = "l00371" > < / a > < span class = "lineno" > 371< / span >   WRITE1 (hnsw-> upper_beam);< / div >
< div class = "line" > < a name = "l00372" > < / a > < span class = "lineno" > 372< / span >   }< / div >
< div class = "line" > < a name = "l00373" > < / a > < span class = "lineno" > 373< / span >   < / div >
< div class = "line" > < a name = "l00374" > < / a > < span class = "lineno" > 374< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > write_ivf_header (< span class = "keyword" > const< / span > IndexIVF *ivf, IOWriter *f) {< / div >
< div class = "line" > < a name = "l00375" > < / a > < span class = "lineno" > 375< / span >   write_index_header (ivf, f);< / div >
< div class = "line" > < a name = "l00376" > < / a > < span class = "lineno" > 376< / span >   WRITE1 (ivf-> nlist);< / div >
< div class = "line" > < a name = "l00377" > < / a > < span class = "lineno" > 377< / span >   WRITE1 (ivf-> nprobe);< / div >
< div class = "line" > < a name = "l00378" > < / a > < span class = "lineno" > 378< / span >   write_index (ivf-> quantizer, f);< / div >
< div class = "line" > < a name = "l00379" > < / a > < span class = "lineno" > 379< / span >   WRITE1 (ivf-> maintain_direct_map);< / div >
< div class = "line" > < a name = "l00380" > < / a > < span class = "lineno" > 380< / span >   WRITEVECTOR (ivf-> direct_map);< / div >
< div class = "line" > < a name = "l00381" > < / a > < span class = "lineno" > 381< / span >   }< / div >
< div class = "line" > < a name = "l00382" > < / a > < span class = "lineno" > 382< / span >   < / div >
< div class = "line" > < a name = "l00383" > < / a > < span class = "lineno" > 383< / span >   < span class = "keywordtype" > void< / span > write_index (< span class = "keyword" > const< / span > Index *idx, IOWriter *f) {< / div >
< div class = "line" > < a name = "l00384" > < / a > < span class = "lineno" > 384< / span >   < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexFlat * idxf = dynamic_cast< const IndexFlat *> (idx)) {< / div >
< div class = "line" > < a name = "l00385" > < / a > < span class = "lineno" > 385< / span >   uint32_t h = fourcc (< / div >
< div class = "line" > < a name = "l00386" > < / a > < span class = "lineno" > 386< / span >   idxf-> metric_type == METRIC_INNER_PRODUCT ? < span class = "stringliteral" > " IxFI" < / span > :< / div >
< div class = "line" > < a name = "l00387" > < / a > < span class = "lineno" > 387< / span >   idxf-> metric_type == METRIC_L2 ? < span class = "stringliteral" > " IxF2" < / span > : < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00388" > < / a > < span class = "lineno" > 388< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00389" > < / a > < span class = "lineno" > 389< / span >   write_index_header (idx, f);< / div >
< div class = "line" > < a name = "l00390" > < / a > < span class = "lineno" > 390< / span >   WRITEVECTOR (idxf-> xb);< / div >
< div class = "line" > < a name = "l00391" > < / a > < span class = "lineno" > 391< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexLSH * idxl = dynamic_cast< const IndexLSH *> (idx)) {< / div >
< div class = "line" > < a name = "l00392" > < / a > < span class = "lineno" > 392< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IxHe" < / span > );< / div >
< div class = "line" > < a name = "l00393" > < / a > < span class = "lineno" > 393< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00394" > < / a > < span class = "lineno" > 394< / span >   write_index_header (idx, f);< / div >
< div class = "line" > < a name = "l00395" > < / a > < span class = "lineno" > 395< / span >   WRITE1 (idxl-> nbits);< / div >
< div class = "line" > < a name = "l00396" > < / a > < span class = "lineno" > 396< / span >   WRITE1 (idxl-> rotate_data);< / div >
< div class = "line" > < a name = "l00397" > < / a > < span class = "lineno" > 397< / span >   WRITE1 (idxl-> train_thresholds);< / div >
< div class = "line" > < a name = "l00398" > < / a > < span class = "lineno" > 398< / span >   WRITEVECTOR (idxl-> thresholds);< / div >
< div class = "line" > < a name = "l00399" > < / a > < span class = "lineno" > 399< / span >   WRITE1 (idxl-> bytes_per_vec);< / div >
< div class = "line" > < a name = "l00400" > < / a > < span class = "lineno" > 400< / span >   write_VectorTransform (& idxl-> rrot, f);< / div >
< div class = "line" > < a name = "l00401" > < / a > < span class = "lineno" > 401< / span >   WRITEVECTOR (idxl-> codes);< / div >
< div class = "line" > < a name = "l00402" > < / a > < span class = "lineno" > 402< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexPQ * idxp = dynamic_cast< const IndexPQ *> (idx)) {< / div >
< div class = "line" > < a name = "l00403" > < / a > < span class = "lineno" > 403< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IxPq" < / span > );< / div >
< div class = "line" > < a name = "l00404" > < / a > < span class = "lineno" > 404< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00405" > < / a > < span class = "lineno" > 405< / span >   write_index_header (idx, f);< / div >
< div class = "line" > < a name = "l00406" > < / a > < span class = "lineno" > 406< / span >   write_ProductQuantizer (& idxp-> pq, f);< / div >
< div class = "line" > < a name = "l00407" > < / a > < span class = "lineno" > 407< / span >   WRITEVECTOR (idxp-> codes);< / div >
< div class = "line" > < a name = "l00408" > < / a > < span class = "lineno" > 408< / span >   < span class = "comment" > // search params -- maybe not useful to store?< / span > < / div >
< div class = "line" > < a name = "l00409" > < / a > < span class = "lineno" > 409< / span >   WRITE1 (idxp-> search_type);< / div >
< div class = "line" > < a name = "l00410" > < / a > < span class = "lineno" > 410< / span >   WRITE1 (idxp-> encode_signs);< / div >
< div class = "line" > < a name = "l00411" > < / a > < span class = "lineno" > 411< / span >   WRITE1 (idxp-> polysemous_ht);< / div >
< div class = "line" > < a name = "l00412" > < / a > < span class = "lineno" > 412< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > Index2Layer * idxp =< / div >
< div class = "line" > < a name = "l00413" > < / a > < span class = "lineno" > 413< / span >   dynamic_cast< const Index2Layer *> (idx)) {< / div >
< div class = "line" > < a name = "l00414" > < / a > < span class = "lineno" > 414< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " Ix2L" < / span > );< / div >
< div class = "line" > < a name = "l00415" > < / a > < span class = "lineno" > 415< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00416" > < / a > < span class = "lineno" > 416< / span >   write_index_header (idx, f);< / div >
< div class = "line" > < a name = "l00417" > < / a > < span class = "lineno" > 417< / span >   write_index (idxp-> q1.quantizer, f);< / div >
< div class = "line" > < a name = "l00418" > < / a > < span class = "lineno" > 418< / span >   WRITE1 (idxp-> q1.nlist);< / div >
< div class = "line" > < a name = "l00419" > < / a > < span class = "lineno" > 419< / span >   WRITE1 (idxp-> q1.quantizer_trains_alone);< / div >
< div class = "line" > < a name = "l00420" > < / a > < span class = "lineno" > 420< / span >   write_ProductQuantizer (& idxp-> pq, f);< / div >
< div class = "line" > < a name = "l00421" > < / a > < span class = "lineno" > 421< / span >   WRITE1 (idxp-> code_size_1);< / div >
< div class = "line" > < a name = "l00422" > < / a > < span class = "lineno" > 422< / span >   WRITE1 (idxp-> code_size_2);< / div >
< div class = "line" > < a name = "l00423" > < / a > < span class = "lineno" > 423< / span >   WRITE1 (idxp-> code_size);< / div >
< div class = "line" > < a name = "l00424" > < / a > < span class = "lineno" > 424< / span >   WRITEVECTOR (idxp-> codes);< / div >
< div class = "line" > < a name = "l00425" > < / a > < span class = "lineno" > 425< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexScalarQuantizer * idxs =< / div >
< div class = "line" > < a name = "l00426" > < / a > < span class = "lineno" > 426< / span >   dynamic_cast< const IndexScalarQuantizer *> (idx)) {< / div >
< div class = "line" > < a name = "l00427" > < / a > < span class = "lineno" > 427< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IxSQ" < / span > );< / div >
< div class = "line" > < a name = "l00428" > < / a > < span class = "lineno" > 428< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00429" > < / a > < span class = "lineno" > 429< / span >   write_index_header (idx, f);< / div >
< div class = "line" > < a name = "l00430" > < / a > < span class = "lineno" > 430< / span >   write_ScalarQuantizer (& idxs-> sq, f);< / div >
< div class = "line" > < a name = "l00431" > < / a > < span class = "lineno" > 431< / span >   WRITEVECTOR (idxs-> codes);< / div >
< div class = "line" > < a name = "l00432" > < / a > < span class = "lineno" > 432< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexIVFFlatDedup * ivfl =< / div >
< div class = "line" > < a name = "l00433" > < / a > < span class = "lineno" > 433< / span >   dynamic_cast< const IndexIVFFlatDedup *> (idx)) {< / div >
< div class = "line" > < a name = "l00434" > < / a > < span class = "lineno" > 434< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IwFd" < / span > );< / div >
< div class = "line" > < a name = "l00435" > < / a > < span class = "lineno" > 435< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00436" > < / a > < span class = "lineno" > 436< / span >   write_ivf_header (ivfl, f);< / div >
< div class = "line" > < a name = "l00437" > < / a > < span class = "lineno" > 437< / span >   {< / div >
< div class = "line" > < a name = "l00438" > < / a > < span class = "lineno" > 438< / span >   std::vector< Index::idx_t> tab (2 * ivfl-> instances.size());< / div >
< div class = "line" > < a name = "l00439" > < / a > < span class = "lineno" > 439< / span >   < span class = "keywordtype" > long< / span > i = 0;< / div >
< div class = "line" > < a name = "l00440" > < / a > < span class = "lineno" > 440< / span >   < span class = "keywordflow" > for< / span > (< span class = "keyword" > auto< / span > it = ivfl-> instances.begin();< / div >
< div class = "line" > < a name = "l00441" > < / a > < span class = "lineno" > 441< / span >   it != ivfl-> instances.end(); ++it) {< / div >
< div class = "line" > < a name = "l00442" > < / a > < span class = "lineno" > 442< / span >   tab[i++] = it-> first;< / div >
< div class = "line" > < a name = "l00443" > < / a > < span class = "lineno" > 443< / span >   tab[i++] = it-> second;< / div >
< div class = "line" > < a name = "l00444" > < / a > < span class = "lineno" > 444< / span >   }< / div >
< div class = "line" > < a name = "l00445" > < / a > < span class = "lineno" > 445< / span >   WRITEVECTOR (tab);< / div >
< div class = "line" > < a name = "l00446" > < / a > < span class = "lineno" > 446< / span >   }< / div >
< div class = "line" > < a name = "l00447" > < / a > < span class = "lineno" > 447< / span >   write_InvertedLists (ivfl-> invlists, f);< / div >
< div class = "line" > < a name = "l00448" > < / a > < span class = "lineno" > 448< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexIVFFlat * ivfl =< / div >
< div class = "line" > < a name = "l00449" > < / a > < span class = "lineno" > 449< / span >   dynamic_cast< const IndexIVFFlat *> (idx)) {< / div >
< div class = "line" > < a name = "l00450" > < / a > < span class = "lineno" > 450< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IwFl" < / span > );< / div >
< div class = "line" > < a name = "l00451" > < / a > < span class = "lineno" > 451< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00452" > < / a > < span class = "lineno" > 452< / span >   write_ivf_header (ivfl, f);< / div >
< div class = "line" > < a name = "l00453" > < / a > < span class = "lineno" > 453< / span >   write_InvertedLists (ivfl-> invlists, f);< / div >
< div class = "line" > < a name = "l00454" > < / a > < span class = "lineno" > 454< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexIVFScalarQuantizer * ivsc =< / div >
< div class = "line" > < a name = "l00455" > < / a > < span class = "lineno" > 455< / span >   dynamic_cast< const IndexIVFScalarQuantizer *> (idx)) {< / div >
< div class = "line" > < a name = "l00456" > < / a > < span class = "lineno" > 456< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IwSq" < / span > );< / div >
< div class = "line" > < a name = "l00457" > < / a > < span class = "lineno" > 457< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00458" > < / a > < span class = "lineno" > 458< / span >   write_ivf_header (ivsc, f);< / div >
< div class = "line" > < a name = "l00459" > < / a > < span class = "lineno" > 459< / span >   write_ScalarQuantizer (& ivsc-> sq, f);< / div >
< div class = "line" > < a name = "l00460" > < / a > < span class = "lineno" > 460< / span >   WRITE1 (ivsc-> code_size);< / div >
< div class = "line" > < a name = "l00461" > < / a > < span class = "lineno" > 461< / span >   WRITE1 (ivsc-> by_residual);< / div >
< div class = "line" > < a name = "l00462" > < / a > < span class = "lineno" > 462< / span >   write_InvertedLists (ivsc-> invlists, f);< / div >
< div class = "line" > < a name = "l00463" > < / a > < span class = "lineno" > 463< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexIVFSpectralHash *ivsp =< / div >
< div class = "line" > < a name = "l00464" > < / a > < span class = "lineno" > 464< / span >   dynamic_cast< const IndexIVFSpectralHash *> (idx)) {< / div >
< div class = "line" > < a name = "l00465" > < / a > < span class = "lineno" > 465< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IwSh" < / span > );< / div >
< div class = "line" > < a name = "l00466" > < / a > < span class = "lineno" > 466< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00467" > < / a > < span class = "lineno" > 467< / span >   write_ivf_header (ivsp, f);< / div >
< div class = "line" > < a name = "l00468" > < / a > < span class = "lineno" > 468< / span >   write_VectorTransform (ivsp-> vt, f);< / div >
< div class = "line" > < a name = "l00469" > < / a > < span class = "lineno" > 469< / span >   WRITE1 (ivsp-> nbit);< / div >
< div class = "line" > < a name = "l00470" > < / a > < span class = "lineno" > 470< / span >   WRITE1 (ivsp-> period);< / div >
< div class = "line" > < a name = "l00471" > < / a > < span class = "lineno" > 471< / span >   WRITE1 (ivsp-> threshold_type);< / div >
< div class = "line" > < a name = "l00472" > < / a > < span class = "lineno" > 472< / span >   WRITEVECTOR (ivsp-> trained);< / div >
< div class = "line" > < a name = "l00473" > < / a > < span class = "lineno" > 473< / span >   write_InvertedLists (ivsp-> invlists, f);< / div >
< div class = "line" > < a name = "l00474" > < / a > < span class = "lineno" > 474< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexIVFPQ * ivpq =< / div >
< div class = "line" > < a name = "l00475" > < / a > < span class = "lineno" > 475< / span >   dynamic_cast< const IndexIVFPQ *> (idx)) {< / div >
< div class = "line" > < a name = "l00476" > < / a > < span class = "lineno" > 476< / span >   < span class = "keyword" > const< / span > IndexIVFPQR * ivfpqr = < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > IndexIVFPQR *< span class = "keyword" > > < / span > (idx);< / div >
< div class = "line" > < a name = "l00477" > < / a > < span class = "lineno" > 477< / span >   < / div >
< div class = "line" > < a name = "l00478" > < / a > < span class = "lineno" > 478< / span >   uint32_t h = fourcc (ivfpqr ? < span class = "stringliteral" > " IwQR" < / span > : < span class = "stringliteral" > " IwPQ" < / span > );< / div >
< div class = "line" > < a name = "l00479" > < / a > < span class = "lineno" > 479< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00480" > < / a > < span class = "lineno" > 480< / span >   write_ivf_header (ivpq, f);< / div >
< div class = "line" > < a name = "l00481" > < / a > < span class = "lineno" > 481< / span >   WRITE1 (ivpq-> by_residual);< / div >
< div class = "line" > < a name = "l00482" > < / a > < span class = "lineno" > 482< / span >   WRITE1 (ivpq-> code_size);< / div >
< div class = "line" > < a name = "l00483" > < / a > < span class = "lineno" > 483< / span >   write_ProductQuantizer (& ivpq-> pq, f);< / div >
< div class = "line" > < a name = "l00484" > < / a > < span class = "lineno" > 484< / span >   write_InvertedLists (ivpq-> invlists, f);< / div >
< div class = "line" > < a name = "l00485" > < / a > < span class = "lineno" > 485< / span >   < span class = "keywordflow" > if< / span > (ivfpqr) {< / div >
< div class = "line" > < a name = "l00486" > < / a > < span class = "lineno" > 486< / span >   write_ProductQuantizer (& ivfpqr-> refine_pq, f);< / div >
< div class = "line" > < a name = "l00487" > < / a > < span class = "lineno" > 487< / span >   WRITEVECTOR (ivfpqr-> refine_codes);< / div >
< div class = "line" > < a name = "l00488" > < / a > < span class = "lineno" > 488< / span >   WRITE1 (ivfpqr-> k_factor);< / div >
< div class = "line" > < a name = "l00489" > < / a > < span class = "lineno" > 489< / span >   }< / div >
< div class = "line" > < a name = "l00490" > < / a > < span class = "lineno" > 490< / span >   < / div >
< div class = "line" > < a name = "l00491" > < / a > < span class = "lineno" > 491< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexPreTransform * ixpt =< / div >
< div class = "line" > < a name = "l00492" > < / a > < span class = "lineno" > 492< / span >   dynamic_cast< const IndexPreTransform *> (idx)) {< / div >
< div class = "line" > < a name = "l00493" > < / a > < span class = "lineno" > 493< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IxPT" < / span > );< / div >
< div class = "line" > < a name = "l00494" > < / a > < span class = "lineno" > 494< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00495" > < / a > < span class = "lineno" > 495< / span >   write_index_header (ixpt, f);< / div >
< div class = "line" > < a name = "l00496" > < / a > < span class = "lineno" > 496< / span >   < span class = "keywordtype" > int< / span > nt = ixpt-> chain.size();< / div >
< div class = "line" > < a name = "l00497" > < / a > < span class = "lineno" > 497< / span >   WRITE1 (nt);< / div >
< div class = "line" > < a name = "l00498" > < / a > < span class = "lineno" > 498< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < nt; i++)< / div >
< div class = "line" > < a name = "l00499" > < / a > < span class = "lineno" > 499< / span >   write_VectorTransform (ixpt-> chain[i], f);< / div >
< div class = "line" > < a name = "l00500" > < / a > < span class = "lineno" > 500< / span >   write_index (ixpt-> index, f);< / div >
< div class = "line" > < a name = "l00501" > < / a > < span class = "lineno" > 501< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > MultiIndexQuantizer * imiq =< / div >
< div class = "line" > < a name = "l00502" > < / a > < span class = "lineno" > 502< / span >   dynamic_cast< const MultiIndexQuantizer *> (idx)) {< / div >
< div class = "line" > < a name = "l00503" > < / a > < span class = "lineno" > 503< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " Imiq" < / span > );< / div >
< div class = "line" > < a name = "l00504" > < / a > < span class = "lineno" > 504< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00505" > < / a > < span class = "lineno" > 505< / span >   write_index_header (imiq, f);< / div >
< div class = "line" > < a name = "l00506" > < / a > < span class = "lineno" > 506< / span >   write_ProductQuantizer (& imiq-> pq, f);< / div >
< div class = "line" > < a name = "l00507" > < / a > < span class = "lineno" > 507< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexRefineFlat * idxrf =< / div >
< div class = "line" > < a name = "l00508" > < / a > < span class = "lineno" > 508< / span >   dynamic_cast< const IndexRefineFlat *> (idx)) {< / div >
< div class = "line" > < a name = "l00509" > < / a > < span class = "lineno" > 509< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IxRF" < / span > );< / div >
< div class = "line" > < a name = "l00510" > < / a > < span class = "lineno" > 510< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00511" > < / a > < span class = "lineno" > 511< / span >   write_index_header (idxrf, f);< / div >
< div class = "line" > < a name = "l00512" > < / a > < span class = "lineno" > 512< / span >   write_index (idxrf-> base_index, f);< / div >
< div class = "line" > < a name = "l00513" > < / a > < span class = "lineno" > 513< / span >   write_index (& idxrf-> refine_index, f);< / div >
< div class = "line" > < a name = "l00514" > < / a > < span class = "lineno" > 514< / span >   WRITE1 (idxrf-> k_factor);< / div >
< div class = "line" > < a name = "l00515" > < / a > < span class = "lineno" > 515< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexIDMap * idxmap =< / div >
< div class = "line" > < a name = "l00516" > < / a > < span class = "lineno" > 516< / span >   dynamic_cast< const IndexIDMap *> (idx)) {< / div >
< div class = "line" > < a name = "l00517" > < / a > < span class = "lineno" > 517< / span >   uint32_t h =< / div >
< div class = "line" > < a name = "l00518" > < / a > < span class = "lineno" > 518< / span >   < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > IndexIDMap2 *< span class = "keyword" > > < / span > (idx) ? fourcc (< span class = "stringliteral" > " IxM2" < / span > ) :< / div >
< div class = "line" > < a name = "l00519" > < / a > < span class = "lineno" > 519< / span >   fourcc (< span class = "stringliteral" > " IxMp" < / span > );< / div >
< div class = "line" > < a name = "l00520" > < / a > < span class = "lineno" > 520< / span >   < span class = "comment" > // no need to store additional info for IndexIDMap2< / span > < / div >
< div class = "line" > < a name = "l00521" > < / a > < span class = "lineno" > 521< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00522" > < / a > < span class = "lineno" > 522< / span >   write_index_header (idxmap, f);< / div >
< div class = "line" > < a name = "l00523" > < / a > < span class = "lineno" > 523< / span >   write_index (idxmap-> index, f);< / div >
< div class = "line" > < a name = "l00524" > < / a > < span class = "lineno" > 524< / span >   WRITEVECTOR (idxmap-> id_map);< / div >
< div class = "line" > < a name = "l00525" > < / a > < span class = "lineno" > 525< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexHNSW * idxhnsw =< / div >
< div class = "line" > < a name = "l00526" > < / a > < span class = "lineno" > 526< / span >   dynamic_cast< const IndexHNSW *> (idx)) {< / div >
< div class = "line" > < a name = "l00527" > < / a > < span class = "lineno" > 527< / span >   uint32_t h =< / div >
< div class = "line" > < a name = "l00528" > < / a > < span class = "lineno" > 528< / span >   < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > IndexHNSWFlat*< span class = "keyword" > > < / span > (idx) ? fourcc(< span class = "stringliteral" > " IHNf" < / span > ) :< / div >
< div class = "line" > < a name = "l00529" > < / a > < span class = "lineno" > 529< / span >   < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > IndexHNSWPQ*< span class = "keyword" > > < / span > (idx) ? fourcc(< span class = "stringliteral" > " IHNp" < / span > ) :< / div >
< div class = "line" > < a name = "l00530" > < / a > < span class = "lineno" > 530< / span >   < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > IndexHNSWSQ*< span class = "keyword" > > < / span > (idx) ? fourcc(< span class = "stringliteral" > " IHNs" < / span > ) :< / div >
< div class = "line" > < a name = "l00531" > < / a > < span class = "lineno" > 531< / span >   < span class = "keyword" > dynamic_cast< < / span > < span class = "keyword" > const < / span > IndexHNSW2Level*< span class = "keyword" > > < / span > (idx) ? fourcc(< span class = "stringliteral" > " IHN2" < / span > ) :< / div >
< div class = "line" > < a name = "l00532" > < / a > < span class = "lineno" > 532< / span >   0;< / div >
< div class = "line" > < a name = "l00533" > < / a > < span class = "lineno" > 533< / span >   FAISS_THROW_IF_NOT (h != 0);< / div >
< div class = "line" > < a name = "l00534" > < / a > < span class = "lineno" > 534< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l00535" > < / a > < span class = "lineno" > 535< / span >   write_index_header (idxhnsw, f);< / div >
< div class = "line" > < a name = "l00536" > < / a > < span class = "lineno" > 536< / span >   write_HNSW (& idxhnsw-> hnsw, f);< / div >
< div class = "line" > < a name = "l00537" > < / a > < span class = "lineno" > 537< / span >   write_index (idxhnsw-> storage, f);< / div >
< div class = "line" > < a name = "l00538" > < / a > < span class = "lineno" > 538< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00539" > < / a > < span class = "lineno" > 539< / span >   FAISS_THROW_MSG (< span class = "stringliteral" > " don' t know how to serialize this type of index" < / span > );< / div >
< div class = "line" > < a name = "l00540" > < / a > < span class = "lineno" > 540< / span >   }< / div >
< div class = "line" > < a name = "l00541" > < / a > < span class = "lineno" > 541< / span >   }< / div >
< div class = "line" > < a name = "l00542" > < / a > < span class = "lineno" > 542< / span >   < / div >
< div class = "line" > < a name = "l00543" > < / a > < span class = "lineno" > 543< / span >   < span class = "keywordtype" > void< / span > write_index (< span class = "keyword" > const< / span > Index *idx, FILE *f) {< / div >
< div class = "line" > < a name = "l00544" > < / a > < span class = "lineno" > 544< / span >   FileIOWriter writer(f);< / div >
< div class = "line" > < a name = "l00545" > < / a > < span class = "lineno" > 545< / span >   write_index (idx, & writer);< / div >
< div class = "line" > < a name = "l00546" > < / a > < span class = "lineno" > 546< / span >   }< / div >
< div class = "line" > < a name = "l00547" > < / a > < span class = "lineno" > 547< / span >   < / div >
< div class = "line" > < a name = "l00548" > < / a > < span class = "lineno" > 548< / span >   < span class = "keywordtype" > void< / span > write_index (< span class = "keyword" > const< / span > Index *idx, < span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname) {< / div >
< div class = "line" > < a name = "l00549" > < / a > < span class = "lineno" > 549< / span >   FileIOWriter writer(fname);< / div >
< div class = "line" > < a name = "l00550" > < / a > < span class = "lineno" > 550< / span >   write_index (idx, & writer);< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00551" > < / a > < span class = "lineno" > 551< / span >   }< / div >
< div class = "line" > < a name = "l00552" > < / a > < span class = "lineno" > 552< / span >   < / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l00553" > < / a > < span class = "lineno" > 553< / span >   < span class = "keywordtype" > void< / span > write_VectorTransform (< span class = "keyword" > const< / span > VectorTransform *vt, < span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname) {< / div >
< div class = "line" > < a name = "l00554" > < / a > < span class = "lineno" > 554< / span >   FileIOWriter writer(fname);< / div >
< div class = "line" > < a name = "l00555" > < / a > < span class = "lineno" > 555< / span >   write_VectorTransform (vt, & writer);< / div >
< div class = "line" > < a name = "l00556" > < / a > < span class = "lineno" > 556< / span >   }< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00557" > < / a > < span class = "lineno" > 557< / span >   < / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l00558" > < / a > < span class = "lineno" > 558< / span >   < span class = "comment" > /*************************************************************< / span > < / div >
< div class = "line" > < a name = "l00559" > < / a > < span class = "lineno" > 559< / span >   < span class = "comment" > * Read< / span > < / div >
< div class = "line" > < a name = "l00560" > < / a > < span class = "lineno" > 560< / span >   < span class = "comment" > **************************************************************/< / span > < / div >
< div class = "line" > < a name = "l00561" > < / a > < span class = "lineno" > 561< / span >   < / div >
< div class = "line" > < a name = "l00562" > < / a > < span class = "lineno" > 562< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_index_header (Index *idx, IOReader *f) {< / div >
< div class = "line" > < a name = "l00563" > < / a > < span class = "lineno" > 563< / span >   READ1 (idx-> d);< / div >
< div class = "line" > < a name = "l00564" > < / a > < span class = "lineno" > 564< / span >   READ1 (idx-> ntotal);< / div >
< div class = "line" > < a name = "l00565" > < / a > < span class = "lineno" > 565< / span >   < a class = "code" href = "structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea" > Index::idx_t< / a > dummy;< / div >
< div class = "line" > < a name = "l00566" > < / a > < span class = "lineno" > 566< / span >   READ1 (dummy);< / div >
< div class = "line" > < a name = "l00567" > < / a > < span class = "lineno" > 567< / span >   READ1 (dummy);< / div >
< div class = "line" > < a name = "l00568" > < / a > < span class = "lineno" > 568< / span >   READ1 (idx-> is_trained);< / div >
< div class = "line" > < a name = "l00569" > < / a > < span class = "lineno" > 569< / span >   READ1 (idx-> metric_type);< / div >
< div class = "line" > < a name = "l00570" > < / a > < span class = "lineno" > 570< / span >   idx-> verbose = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l00571" > < / a > < span class = "lineno" > 571< / span >   }< / div >
< div class = "line" > < a name = "l00572" > < / a > < span class = "lineno" > 572< / span >   < / div >
< div class = "line" > < a name = "l00573" > < / a > < span class = "lineno" > 573< / span >   VectorTransform* read_VectorTransform (IOReader *f) {< / div >
< div class = "line" > < a name = "l00574" > < / a > < span class = "lineno" > 574< / span >   uint32_t h;< / div >
< div class = "line" > < a name = "l00575" > < / a > < span class = "lineno" > 575< / span >   READ1 (h);< / div >
< div class = "line" > < a name = "l00576" > < / a > < span class = "lineno" > 576< / span >   VectorTransform *vt = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00577" > < / a > < span class = "lineno" > 577< / span >   < / div >
< div class = "line" > < a name = "l00578" > < / a > < span class = "lineno" > 578< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " rrot" < / span > ) || h == fourcc (< span class = "stringliteral" > " PCAm" < / span > ) ||< / div >
< div class = "line" > < a name = "l00579" > < / a > < span class = "lineno" > 579< / span >   h == fourcc (< span class = "stringliteral" > " LTra" < / span > ) || h == fourcc (< span class = "stringliteral" > " PcAm" < / span > )) {< / div >
< div class = "line" > < a name = "l00580" > < / a > < span class = "lineno" > 580< / span >   LinearTransform *lt = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00581" > < / a > < span class = "lineno" > 581< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " rrot" < / span > )) {< / div >
< div class = "line" > < a name = "l00582" > < / a > < span class = "lineno" > 582< / span >   lt = < span class = "keyword" > new< / span > RandomRotationMatrix ();< / div >
< div class = "line" > < a name = "l00583" > < / a > < span class = "lineno" > 583< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " PCAm" < / span > ) ||< / div >
< div class = "line" > < a name = "l00584" > < / a > < span class = "lineno" > 584< / span >   h == fourcc (< span class = "stringliteral" > " PcAm" < / span > )) {< / div >
< div class = "line" > < a name = "l00585" > < / a > < span class = "lineno" > 585< / span >   PCAMatrix * pca = < span class = "keyword" > new< / span > PCAMatrix ();< / div >
< div class = "line" > < a name = "l00586" > < / a > < span class = "lineno" > 586< / span >   READ1 (pca-> eigen_power);< / div >
< div class = "line" > < a name = "l00587" > < / a > < span class = "lineno" > 587< / span >   READ1 (pca-> random_rotation);< / div >
< div class = "line" > < a name = "l00588" > < / a > < span class = "lineno" > 588< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " PcAm" < / span > ))< / div >
< div class = "line" > < a name = "l00589" > < / a > < span class = "lineno" > 589< / span >   READ1 (pca-> balanced_bins);< / div >
< div class = "line" > < a name = "l00590" > < / a > < span class = "lineno" > 590< / span >   READVECTOR (pca-> mean);< / div >
< div class = "line" > < a name = "l00591" > < / a > < span class = "lineno" > 591< / span >   READVECTOR (pca-> eigenvalues);< / div >
< div class = "line" > < a name = "l00592" > < / a > < span class = "lineno" > 592< / span >   READVECTOR (pca-> PCAMat);< / div >
< div class = "line" > < a name = "l00593" > < / a > < span class = "lineno" > 593< / span >   lt = pca;< / div >
< div class = "line" > < a name = "l00594" > < / a > < span class = "lineno" > 594< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " LTra" < / span > )) {< / div >
< div class = "line" > < a name = "l00595" > < / a > < span class = "lineno" > 595< / span >   lt = < span class = "keyword" > new< / span > LinearTransform ();< / div >
< div class = "line" > < a name = "l00596" > < / a > < span class = "lineno" > 596< / span >   }< / div >
< div class = "line" > < a name = "l00597" > < / a > < span class = "lineno" > 597< / span >   READ1 (lt-> have_bias);< / div >
< div class = "line" > < a name = "l00598" > < / a > < span class = "lineno" > 598< / span >   READVECTOR (lt-> A);< / div >
< div class = "line" > < a name = "l00599" > < / a > < span class = "lineno" > 599< / span >   READVECTOR (lt-> b);< / div >
< div class = "line" > < a name = "l00600" > < / a > < span class = "lineno" > 600< / span >   FAISS_THROW_IF_NOT (lt-> A.size() > = lt-> d_in * lt-> d_out);< / div >
< div class = "line" > < a name = "l00601" > < / a > < span class = "lineno" > 601< / span >   FAISS_THROW_IF_NOT (!lt-> have_bias || lt-> b.size() > = lt-> d_out);< / div >
< div class = "line" > < a name = "l00602" > < / a > < span class = "lineno" > 602< / span >   lt-> set_is_orthonormal();< / div >
< div class = "line" > < a name = "l00603" > < / a > < span class = "lineno" > 603< / span >   vt = lt;< / div >
< div class = "line" > < a name = "l00604" > < / a > < span class = "lineno" > 604< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " RmDT" < / span > )) {< / div >
< div class = "line" > < a name = "l00605" > < / a > < span class = "lineno" > 605< / span >   RemapDimensionsTransform *rdt = < span class = "keyword" > new< / span > RemapDimensionsTransform ();< / div >
< div class = "line" > < a name = "l00606" > < / a > < span class = "lineno" > 606< / span >   READVECTOR (rdt-> map);< / div >
< div class = "line" > < a name = "l00607" > < / a > < span class = "lineno" > 607< / span >   vt = rdt;< / div >
< div class = "line" > < a name = "l00608" > < / a > < span class = "lineno" > 608< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " VNrm" < / span > )) {< / div >
< div class = "line" > < a name = "l00609" > < / a > < span class = "lineno" > 609< / span >   NormalizationTransform *nt = < span class = "keyword" > new< / span > NormalizationTransform ();< / div >
< div class = "line" > < a name = "l00610" > < / a > < span class = "lineno" > 610< / span >   READ1 (nt-> norm);< / div >
< div class = "line" > < a name = "l00611" > < / a > < span class = "lineno" > 611< / span >   vt = nt;< / div >
< div class = "line" > < a name = "l00612" > < / a > < span class = "lineno" > 612< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " VCnt" < / span > )) {< / div >
< div class = "line" > < a name = "l00613" > < / a > < span class = "lineno" > 613< / span >   CenteringTransform *ct = < span class = "keyword" > new< / span > CenteringTransform ();< / div >
< div class = "line" > < a name = "l00614" > < / a > < span class = "lineno" > 614< / span >   READVECTOR (ct-> mean);< / div >
< div class = "line" > < a name = "l00615" > < / a > < span class = "lineno" > 615< / span >   vt = ct;< / div >
< div class = "line" > < a name = "l00616" > < / a > < span class = "lineno" > 616< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00617" > < / a > < span class = "lineno" > 617< / span >   FAISS_THROW_MSG(< span class = "stringliteral" > " fourcc not recognized" < / span > );< / div >
< div class = "line" > < a name = "l00618" > < / a > < span class = "lineno" > 618< / span >   }< / div >
< div class = "line" > < a name = "l00619" > < / a > < span class = "lineno" > 619< / span >   READ1 (vt-> d_in);< / div >
< div class = "line" > < a name = "l00620" > < / a > < span class = "lineno" > 620< / span >   READ1 (vt-> d_out);< / div >
< div class = "line" > < a name = "l00621" > < / a > < span class = "lineno" > 621< / span >   READ1 (vt-> is_trained);< / div >
< div class = "line" > < a name = "l00622" > < / a > < span class = "lineno" > 622< / span >   < span class = "keywordflow" > return< / span > vt;< / div >
< div class = "line" > < a name = "l00623" > < / a > < span class = "lineno" > 623< / span >   }< / div >
< div class = "line" > < a name = "l00624" > < / a > < span class = "lineno" > 624< / span >   < / div >
< div class = "line" > < a name = "l00625" > < / a > < span class = "lineno" > 625< / span >   < / div >
< div class = "line" > < a name = "l00626" > < / a > < span class = "lineno" > 626< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_ArrayInvertedLists_sizes (< / div >
< div class = "line" > < a name = "l00627" > < / a > < span class = "lineno" > 627< / span >   IOReader *f, std::vector< size_t> & sizes)< / div >
< div class = "line" > < a name = "l00628" > < / a > < span class = "lineno" > 628< / span >   {< / div >
< div class = "line" > < a name = "l00629" > < / a > < span class = "lineno" > 629< / span >   uint32_t list_type;< / div >
< div class = "line" > < a name = "l00630" > < / a > < span class = "lineno" > 630< / span >   READ1(list_type);< / div >
< div class = "line" > < a name = "l00631" > < / a > < span class = "lineno" > 631< / span >   < span class = "keywordflow" > if< / span > (list_type == fourcc(< span class = "stringliteral" > " full" < / span > )) {< / div >
< div class = "line" > < a name = "l00632" > < / a > < span class = "lineno" > 632< / span >   < span class = "keywordtype" > size_t< / span > os = sizes.size();< / div >
< div class = "line" > < a name = "l00633" > < / a > < span class = "lineno" > 633< / span >   READVECTOR (sizes);< / div >
< div class = "line" > < a name = "l00634" > < / a > < span class = "lineno" > 634< / span >   FAISS_THROW_IF_NOT (os == sizes.size());< / div >
< div class = "line" > < a name = "l00635" > < / a > < span class = "lineno" > 635< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (list_type == fourcc(< span class = "stringliteral" > " sprs" < / span > )) {< / div >
< div class = "line" > < a name = "l00636" > < / a > < span class = "lineno" > 636< / span >   std::vector< size_t> idsizes;< / div >
< div class = "line" > < a name = "l00637" > < / a > < span class = "lineno" > 637< / span >   READVECTOR (idsizes);< / div >
< div class = "line" > < a name = "l00638" > < / a > < span class = "lineno" > 638< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > j = 0; j < idsizes.size(); j += 2) {< / div >
< div class = "line" > < a name = "l00639" > < / a > < span class = "lineno" > 639< / span >   FAISS_THROW_IF_NOT (idsizes[j] < sizes.size());< / div >
< div class = "line" > < a name = "l00640" > < / a > < span class = "lineno" > 640< / span >   sizes[idsizes[j]] = idsizes[j + 1];< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00641" > < / a > < span class = "lineno" > 641< / span >   }< / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l00642" > < / a > < span class = "lineno" > 642< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00643" > < / a > < span class = "lineno" > 643< / span >   FAISS_THROW_MSG (< span class = "stringliteral" > " invalid list_type" < / span > );< / div >
< div class = "line" > < a name = "l00644" > < / a > < span class = "lineno" > 644< / span >   }< / div >
< div class = "line" > < a name = "l00645" > < / a > < span class = "lineno" > 645< / span >   }< / div >
< div class = "line" > < a name = "l00646" > < / a > < span class = "lineno" > 646< / span >   < / div >
< div class = "line" > < a name = "l00647" > < / a > < span class = "lineno" > 647< / span >   InvertedLists *read_InvertedLists (IOReader *f, < span class = "keywordtype" > int< / span > io_flags) {< / div >
< div class = "line" > < a name = "l00648" > < / a > < span class = "lineno" > 648< / span >   uint32_t h;< / div >
< div class = "line" > < a name = "l00649" > < / a > < span class = "lineno" > 649< / span >   READ1 (h);< / div >
< div class = "line" > < a name = "l00650" > < / a > < span class = "lineno" > 650< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " il00" < / span > )) {< / div >
< div class = "line" > < a name = "l00651" > < / a > < span class = "lineno" > 651< / span >   fprintf(stderr, < span class = "stringliteral" > " read_InvertedLists:" < / span > < / div >
< div class = "line" > < a name = "l00652" > < / a > < span class = "lineno" > 652< / span >   < span class = "stringliteral" > " WARN! inverted lists not stored with IVF object\n" < / span > );< / div >
< div class = "line" > < a name = "l00653" > < / a > < span class = "lineno" > 653< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00654" > < / a > < span class = "lineno" > 654< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " ilar" < / span > ) & & !(io_flags & IO_FLAG_MMAP)) {< / div >
< div class = "line" > < a name = "l00655" > < / a > < span class = "lineno" > 655< / span >   < span class = "keyword" > auto< / span > ails = < span class = "keyword" > new< / span > ArrayInvertedLists (0, 0);< / div >
< div class = "line" > < a name = "l00656" > < / a > < span class = "lineno" > 656< / span >   READ1 (ails-> nlist);< / div >
< div class = "line" > < a name = "l00657" > < / a > < span class = "lineno" > 657< / span >   READ1 (ails-> code_size);< / div >
< div class = "line" > < a name = "l00658" > < / a > < span class = "lineno" > 658< / span >   ails-> ids.resize (ails-> nlist);< / div >
< div class = "line" > < a name = "l00659" > < / a > < span class = "lineno" > 659< / span >   ails-> codes.resize (ails-> nlist);< / div >
< div class = "line" > < a name = "l00660" > < / a > < span class = "lineno" > 660< / span >   std::vector< size_t> sizes (ails-> nlist);< / div >
< div class = "line" > < a name = "l00661" > < / a > < span class = "lineno" > 661< / span >   read_ArrayInvertedLists_sizes (f, sizes);< / div >
< div class = "line" > < a name = "l00662" > < / a > < span class = "lineno" > 662< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ails-> nlist; i++) {< / div >
< div class = "line" > < a name = "l00663" > < / a > < span class = "lineno" > 663< / span >   ails-> ids[i].resize (sizes[i]);< / div >
< div class = "line" > < a name = "l00664" > < / a > < span class = "lineno" > 664< / span >   ails-> codes[i].resize (sizes[i] * ails-> code_size);< / div >
< div class = "line" > < a name = "l00665" > < / a > < span class = "lineno" > 665< / span >   }< / div >
< div class = "line" > < a name = "l00666" > < / a > < span class = "lineno" > 666< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ails-> nlist; i++) {< / div >
< div class = "line" > < a name = "l00667" > < / a > < span class = "lineno" > 667< / span >   < span class = "keywordtype" > size_t< / span > n = ails-> ids[i].size();< / div >
< div class = "line" > < a name = "l00668" > < / a > < span class = "lineno" > 668< / span >   < span class = "keywordflow" > if< / span > (n > 0) {< / div >
< div class = "line" > < a name = "l00669" > < / a > < span class = "lineno" > 669< / span >   READANDCHECK (ails-> codes[i].data(), n * ails-> code_size);< / div >
< div class = "line" > < a name = "l00670" > < / a > < span class = "lineno" > 670< / span >   READANDCHECK (ails-> ids[i].data(), n);< / div >
< div class = "line" > < a name = "l00671" > < / a > < span class = "lineno" > 671< / span >   }< / div >
< div class = "line" > < a name = "l00672" > < / a > < span class = "lineno" > 672< / span >   }< / div >
< div class = "line" > < a name = "l00673" > < / a > < span class = "lineno" > 673< / span >   < span class = "keywordflow" > return< / span > ails;< / div >
< div class = "line" > < a name = "l00674" > < / a > < span class = "lineno" > 674< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " ilar" < / span > ) & & (io_flags & IO_FLAG_MMAP)) {< / div >
< div class = "line" > < a name = "l00675" > < / a > < span class = "lineno" > 675< / span >   < span class = "comment" > // then we load it as an OnDiskInvertedLists< / span > < / div >
< div class = "line" > < a name = "l00676" > < / a > < span class = "lineno" > 676< / span >   < / div >
< div class = "line" > < a name = "l00677" > < / a > < span class = "lineno" > 677< / span >   FileIOReader *reader = < span class = "keyword" > dynamic_cast< < / span > FileIOReader*< span class = "keyword" > > < / span > (f);< / div >
< div class = "line" > < a name = "l00678" > < / a > < span class = "lineno" > 678< / span >   FAISS_THROW_IF_NOT_MSG(reader, < span class = "stringliteral" > " mmap only supported for File objects" < / span > );< / div >
< div class = "line" > < a name = "l00679" > < / a > < span class = "lineno" > 679< / span >   FILE *fdesc = reader-> f;< / div >
< div class = "line" > < a name = "l00680" > < / a > < span class = "lineno" > 680< / span >   < / div >
< div class = "line" > < a name = "l00681" > < / a > < span class = "lineno" > 681< / span >   < span class = "keyword" > auto< / span > ails = < span class = "keyword" > new< / span > OnDiskInvertedLists ();< / div >
< div class = "line" > < a name = "l00682" > < / a > < span class = "lineno" > 682< / span >   READ1 (ails-> nlist);< / div >
< div class = "line" > < a name = "l00683" > < / a > < span class = "lineno" > 683< / span >   READ1 (ails-> code_size);< / div >
< div class = "line" > < a name = "l00684" > < / a > < span class = "lineno" > 684< / span >   ails-> read_only = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00685" > < / a > < span class = "lineno" > 685< / span >   ails-> lists.resize (ails-> nlist);< / div >
< div class = "line" > < a name = "l00686" > < / a > < span class = "lineno" > 686< / span >   std::vector< size_t> sizes (ails-> nlist);< / div >
< div class = "line" > < a name = "l00687" > < / a > < span class = "lineno" > 687< / span >   read_ArrayInvertedLists_sizes (f, sizes);< / div >
< div class = "line" > < a name = "l00688" > < / a > < span class = "lineno" > 688< / span >   < span class = "keywordtype" > size_t< / span > o0 = ftell(fdesc), o = o0;< / div >
< div class = "line" > < a name = "l00689" > < / a > < span class = "lineno" > 689< / span >   { < span class = "comment" > // do the mmap< / span > < / div >
< div class = "line" > < a name = "l00690" > < / a > < span class = "lineno" > 690< / span >   < span class = "keyword" > struct < / span > stat buf;< / div >
< div class = "line" > < a name = "l00691" > < / a > < span class = "lineno" > 691< / span >   < span class = "keywordtype" > int< / span > ret = fstat (fileno(fdesc), & buf);< / div >
< div class = "line" > < a name = "l00692" > < / a > < span class = "lineno" > 692< / span >   FAISS_THROW_IF_NOT_FMT (ret == 0,< / div >
< div class = "line" > < a name = "l00693" > < / a > < span class = "lineno" > 693< / span >   < span class = "stringliteral" > " fstat failed: %s" < / span > , strerror(errno));< / div >
< div class = "line" > < a name = "l00694" > < / a > < span class = "lineno" > 694< / span >   ails-> totsize = buf.st_size;< / div >
< div class = "line" > < a name = "l00695" > < / a > < span class = "lineno" > 695< / span >   ails-> ptr = (uint8_t*)mmap (< span class = "keyword" > nullptr< / span > , ails-> totsize,< / div >
< div class = "line" > < a name = "l00696" > < / a > < span class = "lineno" > 696< / span >   PROT_READ, MAP_SHARED,< / div >
< div class = "line" > < a name = "l00697" > < / a > < span class = "lineno" > 697< / span >   fileno(fdesc), 0);< / div >
< div class = "line" > < a name = "l00698" > < / a > < span class = "lineno" > 698< / span >   FAISS_THROW_IF_NOT_FMT (ails-> ptr != MAP_FAILED,< / div >
< div class = "line" > < a name = "l00699" > < / a > < span class = "lineno" > 699< / span >   < span class = "stringliteral" > " could not mmap: %s" < / span > ,< / div >
< div class = "line" > < a name = "l00700" > < / a > < span class = "lineno" > 700< / span >   strerror(errno));< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00701" > < / a > < span class = "lineno" > 701< / span >   }< / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l00702" > < / a > < span class = "lineno" > 702< / span >   < / div >
< div class = "line" > < a name = "l00703" > < / a > < span class = "lineno" > 703< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ails-> nlist; i++) {< / div >
< div class = "line" > < a name = "l00704" > < / a > < span class = "lineno" > 704< / span >   OnDiskInvertedLists::List & l = ails-> lists[i];< / div >
< div class = "line" > < a name = "l00705" > < / a > < span class = "lineno" > 705< / span >   l.size = l.capacity = sizes[i];< / div >
< div class = "line" > < a name = "l00706" > < / a > < span class = "lineno" > 706< / span >   l.offset = o;< / div >
< div class = "line" > < a name = "l00707" > < / a > < span class = "lineno" > 707< / span >   o += l.size * (< span class = "keyword" > sizeof< / span > (OnDiskInvertedLists::idx_t) +< / div >
< div class = "line" > < a name = "l00708" > < / a > < span class = "lineno" > 708< / span >   ails-> code_size);< / div >
< div class = "line" > < a name = "l00709" > < / a > < span class = "lineno" > 709< / span >   }< / div >
< div class = "line" > < a name = "l00710" > < / a > < span class = "lineno" > 710< / span >   FAISS_THROW_IF_NOT(o < = ails-> totsize);< / div >
< div class = "line" > < a name = "l00711" > < / a > < span class = "lineno" > 711< / span >   < span class = "comment" > // resume normal reading of file< / span > < / div >
< div class = "line" > < a name = "l00712" > < / a > < span class = "lineno" > 712< / span >   fseek (fdesc, o, SEEK_SET);< / div >
< div class = "line" > < a name = "l00713" > < / a > < span class = "lineno" > 713< / span >   < span class = "keywordflow" > return< / span > ails;< / div >
< div class = "line" > < a name = "l00714" > < / a > < span class = "lineno" > 714< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " ilod" < / span > )) {< / div >
< div class = "line" > < a name = "l00715" > < / a > < span class = "lineno" > 715< / span >   OnDiskInvertedLists *od = < span class = "keyword" > new< / span > OnDiskInvertedLists();< / div >
< div class = "line" > < a name = "l00716" > < / a > < span class = "lineno" > 716< / span >   od-> read_only = io_flags & IO_FLAG_READ_ONLY;< / div >
< div class = "line" > < a name = "l00717" > < / a > < span class = "lineno" > 717< / span >   READ1 (od-> nlist);< / div >
< div class = "line" > < a name = "l00718" > < / a > < span class = "lineno" > 718< / span >   READ1 (od-> code_size);< / div >
< div class = "line" > < a name = "l00719" > < / a > < span class = "lineno" > 719< / span >   < span class = "comment" > // this is a POD object< / span > < / div >
< div class = "line" > < a name = "l00720" > < / a > < span class = "lineno" > 720< / span >   READVECTOR (od-> lists);< / div >
< div class = "line" > < a name = "l00721" > < / a > < span class = "lineno" > 721< / span >   {< / div >
< div class = "line" > < a name = "l00722" > < / a > < span class = "lineno" > 722< / span >   std::vector< OnDiskInvertedLists::Slot> v;< / div >
< div class = "line" > < a name = "l00723" > < / a > < span class = "lineno" > 723< / span >   READVECTOR(v);< / div >
< div class = "line" > < a name = "l00724" > < / a > < span class = "lineno" > 724< / span >   od-> slots.assign(v.begin(), v.end());< / div >
< div class = "line" > < a name = "l00725" > < / a > < span class = "lineno" > 725< / span >   }< / div >
< div class = "line" > < a name = "l00726" > < / a > < span class = "lineno" > 726< / span >   {< / div >
< div class = "line" > < a name = "l00727" > < / a > < span class = "lineno" > 727< / span >   std::vector< char> x;< / div >
< div class = "line" > < a name = "l00728" > < / a > < span class = "lineno" > 728< / span >   READVECTOR(x);< / div >
< div class = "line" > < a name = "l00729" > < / a > < span class = "lineno" > 729< / span >   od-> filename.assign(x.begin(), x.end());< / div >
< div class = "line" > < a name = "l00730" > < / a > < span class = "lineno" > 730< / span >   < / div >
< div class = "line" > < a name = "l00731" > < / a > < span class = "lineno" > 731< / span >   < span class = "keywordflow" > if< / span > (io_flags & IO_FLAG_ONDISK_SAME_DIR) {< / div >
< div class = "line" > < a name = "l00732" > < / a > < span class = "lineno" > 732< / span >   FileIOReader *reader = < span class = "keyword" > dynamic_cast< < / span > FileIOReader*< span class = "keyword" > > < / span > (f);< / div >
< div class = "line" > < a name = "l00733" > < / a > < span class = "lineno" > 733< / span >   FAISS_THROW_IF_NOT_MSG (< / div >
< div class = "line" > < a name = "l00734" > < / a > < span class = "lineno" > 734< / span >   reader, < span class = "stringliteral" > " IO_FLAG_ONDISK_SAME_DIR only supported " < / span > < / div >
< div class = "line" > < a name = "l00735" > < / a > < span class = "lineno" > 735< / span >   < span class = "stringliteral" > " when reading from file" < / span > );< / div >
< div class = "line" > < a name = "l00736" > < / a > < span class = "lineno" > 736< / span >   std::string indexname = reader-> name;< / div >
< div class = "line" > < a name = "l00737" > < / a > < span class = "lineno" > 737< / span >   std::string dirname = < span class = "stringliteral" > " ./" < / span > ;< / div >
< div class = "line" > < a name = "l00738" > < / a > < span class = "lineno" > 738< / span >   < span class = "keywordtype" > size_t< / span > slash = indexname.find_last_of(< span class = "charliteral" > ' /' < / span > );< / div >
< div class = "line" > < a name = "l00739" > < / a > < span class = "lineno" > 739< / span >   < span class = "keywordflow" > if< / span > (slash != std::string::npos) {< / div >
< div class = "line" > < a name = "l00740" > < / a > < span class = "lineno" > 740< / span >   dirname = indexname.substr(0, slash + 1);< / div >
< div class = "line" > < a name = "l00741" > < / a > < span class = "lineno" > 741< / span >   }< / div >
< div class = "line" > < a name = "l00742" > < / a > < span class = "lineno" > 742< / span >   std::string filename = od-> filename;< / div >
< div class = "line" > < a name = "l00743" > < / a > < span class = "lineno" > 743< / span >   slash = filename.find_last_of(< span class = "charliteral" > ' /' < / span > );< / div >
< div class = "line" > < a name = "l00744" > < / a > < span class = "lineno" > 744< / span >   < span class = "keywordflow" > if< / span > (slash != std::string::npos) {< / div >
< div class = "line" > < a name = "l00745" > < / a > < span class = "lineno" > 745< / span >   filename = filename.substr(slash + 1);< / div >
< div class = "line" > < a name = "l00746" > < / a > < span class = "lineno" > 746< / span >   }< / div >
< div class = "line" > < a name = "l00747" > < / a > < span class = "lineno" > 747< / span >   filename = dirname + filename;< / div >
< div class = "line" > < a name = "l00748" > < / a > < span class = "lineno" > 748< / span >   printf(< span class = "stringliteral" > " IO_FLAG_ONDISK_SAME_DIR: " < / span > < / div >
< div class = "line" > < a name = "l00749" > < / a > < span class = "lineno" > 749< / span >   < span class = "stringliteral" > " updating ondisk filename from %s to %s\n" < / span > ,< / div >
< div class = "line" > < a name = "l00750" > < / a > < span class = "lineno" > 750< / span >   od-> filename.c_str(), filename.c_str());< / div >
< div class = "line" > < a name = "l00751" > < / a > < span class = "lineno" > 751< / span >   od-> filename = filename;< / div >
< div class = "line" > < a name = "l00752" > < / a > < span class = "lineno" > 752< / span >   }< / div >
< div class = "line" > < a name = "l00753" > < / a > < span class = "lineno" > 753< / span >   < / div >
< div class = "line" > < a name = "l00754" > < / a > < span class = "lineno" > 754< / span >   }< / div >
< div class = "line" > < a name = "l00755" > < / a > < span class = "lineno" > 755< / span >   READ1(od-> totsize);< / div >
< div class = "line" > < a name = "l00756" > < / a > < span class = "lineno" > 756< / span >   od-> do_mmap();< / div >
< div class = "line" > < a name = "l00757" > < / a > < span class = "lineno" > 757< / span >   < span class = "keywordflow" > return< / span > od;< / div >
< div class = "line" > < a name = "l00758" > < / a > < span class = "lineno" > 758< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00759" > < / a > < span class = "lineno" > 759< / span >   FAISS_THROW_MSG (< span class = "stringliteral" > " read_InvertedLists: unsupported invlist type" < / span > );< / div >
< div class = "line" > < a name = "l00760" > < / a > < span class = "lineno" > 760< / span >   }< / div >
< div class = "line" > < a name = "l00761" > < / a > < span class = "lineno" > 761< / span >   }< / div >
< div class = "line" > < a name = "l00762" > < / a > < span class = "lineno" > 762< / span >   < / div >
< div class = "line" > < a name = "l00763" > < / a > < span class = "lineno" > 763< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_InvertedLists (< / div >
< div class = "line" > < a name = "l00764" > < / a > < span class = "lineno" > 764< / span >   IndexIVF *ivf, IOReader *f, < span class = "keywordtype" > int< / span > io_flags) {< / div >
< div class = "line" > < a name = "l00765" > < / a > < span class = "lineno" > 765< / span >   InvertedLists *ils = read_InvertedLists (f, io_flags);< / div >
< div class = "line" > < a name = "l00766" > < / a > < span class = "lineno" > 766< / span >   FAISS_THROW_IF_NOT (!ils || (ils-> nlist == ivf-> nlist & & < / div >
< div class = "line" > < a name = "l00767" > < / a > < span class = "lineno" > 767< / span >   ils-> code_size == ivf-> code_size));< / div >
< div class = "line" > < a name = "l00768" > < / a > < span class = "lineno" > 768< / span >   ivf-> invlists = ils;< / div >
< div class = "line" > < a name = "l00769" > < / a > < span class = "lineno" > 769< / span >   ivf-> own_invlists = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00770" > < / a > < span class = "lineno" > 770< / span >   }< / div >
< div class = "line" > < a name = "l00771" > < / a > < span class = "lineno" > 771< / span >   < / div >
< div class = "line" > < a name = "l00772" > < / a > < span class = "lineno" > 772< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_InvertedLists (< / div >
< div class = "line" > < a name = "l00773" > < / a > < span class = "lineno" > 773< / span >   IndexBinaryIVF *ivf, IOReader *f, < span class = "keywordtype" > int< / span > io_flags) {< / div >
< div class = "line" > < a name = "l00774" > < / a > < span class = "lineno" > 774< / span >   InvertedLists *ils = read_InvertedLists (f, io_flags);< / div >
< div class = "line" > < a name = "l00775" > < / a > < span class = "lineno" > 775< / span >   FAISS_THROW_IF_NOT (!ils || (ils-> nlist == ivf-> nlist & & < / div >
< div class = "line" > < a name = "l00776" > < / a > < span class = "lineno" > 776< / span >   ils-> code_size == ivf-> code_size));< / div >
< div class = "line" > < a name = "l00777" > < / a > < span class = "lineno" > 777< / span >   ivf-> invlists = ils;< / div >
< div class = "line" > < a name = "l00778" > < / a > < span class = "lineno" > 778< / span >   ivf-> own_invlists = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00779" > < / a > < span class = "lineno" > 779< / span >   }< / div >
< div class = "line" > < a name = "l00780" > < / a > < span class = "lineno" > 780< / span >   < / div >
< div class = "line" > < a name = "l00781" > < / a > < span class = "lineno" > 781< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_ProductQuantizer (ProductQuantizer *pq, IOReader *f) {< / div >
< div class = "line" > < a name = "l00782" > < / a > < span class = "lineno" > 782< / span >   READ1 (pq-> d);< / div >
< div class = "line" > < a name = "l00783" > < / a > < span class = "lineno" > 783< / span >   READ1 (pq-> M);< / div >
< div class = "line" > < a name = "l00784" > < / a > < span class = "lineno" > 784< / span >   READ1 (pq-> nbits);< / div >
< div class = "line" > < a name = "l00785" > < / a > < span class = "lineno" > 785< / span >   pq-> set_derived_values ();< / div >
< div class = "line" > < a name = "l00786" > < / a > < span class = "lineno" > 786< / span >   READVECTOR (pq-> centroids);< / div >
< div class = "line" > < a name = "l00787" > < / a > < span class = "lineno" > 787< / span >   }< / div >
< div class = "line" > < a name = "l00788" > < / a > < span class = "lineno" > 788< / span >   < / div >
< div class = "line" > < a name = "l00789" > < / a > < span class = "lineno" > 789< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_ScalarQuantizer (ScalarQuantizer *ivsc, IOReader *f) {< / div >
< div class = "line" > < a name = "l00790" > < / a > < span class = "lineno" > 790< / span >   READ1 (ivsc-> qtype);< / div >
< div class = "line" > < a name = "l00791" > < / a > < span class = "lineno" > 791< / span >   READ1 (ivsc-> rangestat);< / div >
< div class = "line" > < a name = "l00792" > < / a > < span class = "lineno" > 792< / span >   READ1 (ivsc-> rangestat_arg);< / div >
< div class = "line" > < a name = "l00793" > < / a > < span class = "lineno" > 793< / span >   READ1 (ivsc-> d);< / div >
< div class = "line" > < a name = "l00794" > < / a > < span class = "lineno" > 794< / span >   READ1 (ivsc-> code_size);< / div >
< div class = "line" > < a name = "l00795" > < / a > < span class = "lineno" > 795< / span >   READVECTOR (ivsc-> trained);< / div >
< div class = "line" > < a name = "l00796" > < / a > < span class = "lineno" > 796< / span >   }< / div >
< div class = "line" > < a name = "l00797" > < / a > < span class = "lineno" > 797< / span >   < / div >
< div class = "line" > < a name = "l00798" > < / a > < span class = "lineno" > 798< / span >   < / div >
< div class = "line" > < a name = "l00799" > < / a > < span class = "lineno" > 799< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_HNSW (HNSW *hnsw, IOReader *f) {< / div >
< div class = "line" > < a name = "l00800" > < / a > < span class = "lineno" > 800< / span >   READVECTOR (hnsw-> assign_probas);< / div >
< div class = "line" > < a name = "l00801" > < / a > < span class = "lineno" > 801< / span >   READVECTOR (hnsw-> cum_nneighbor_per_level);< / div >
< div class = "line" > < a name = "l00802" > < / a > < span class = "lineno" > 802< / span >   READVECTOR (hnsw-> levels);< / div >
< div class = "line" > < a name = "l00803" > < / a > < span class = "lineno" > 803< / span >   READVECTOR (hnsw-> offsets);< / div >
< div class = "line" > < a name = "l00804" > < / a > < span class = "lineno" > 804< / span >   READVECTOR (hnsw-> neighbors);< / div >
< div class = "line" > < a name = "l00805" > < / a > < span class = "lineno" > 805< / span >   < / div >
< div class = "line" > < a name = "l00806" > < / a > < span class = "lineno" > 806< / span >   READ1 (hnsw-> entry_point);< / div >
< div class = "line" > < a name = "l00807" > < / a > < span class = "lineno" > 807< / span >   READ1 (hnsw-> max_level);< / div >
< div class = "line" > < a name = "l00808" > < / a > < span class = "lineno" > 808< / span >   READ1 (hnsw-> efConstruction);< / div >
< div class = "line" > < a name = "l00809" > < / a > < span class = "lineno" > 809< / span >   READ1 (hnsw-> efSearch);< / div >
< div class = "line" > < a name = "l00810" > < / a > < span class = "lineno" > 810< / span >   READ1 (hnsw-> upper_beam);< / div >
< div class = "line" > < a name = "l00811" > < / a > < span class = "lineno" > 811< / span >   }< / div >
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< div class = "line" > < a name = "l00812" > < / a > < span class = "lineno" > 812< / span >   < / div >
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< div class = "line" > < a name = "l00813" > < / a > < span class = "lineno" > 813< / span >   ProductQuantizer * read_ProductQuantizer (< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname) {< / div >
< div class = "line" > < a name = "l00814" > < / a > < span class = "lineno" > 814< / span >   FileIOReader reader(fname);< / div >
< div class = "line" > < a name = "l00815" > < / a > < span class = "lineno" > 815< / span >   < span class = "keywordflow" > return< / span > read_ProductQuantizer(& reader);< / div >
< div class = "line" > < a name = "l00816" > < / a > < span class = "lineno" > 816< / span >   }< / div >
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< div class = "line" > < a name = "l00817" > < / a > < span class = "lineno" > 817< / span >   < / div >
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< div class = "line" > < a name = "l00818" > < / a > < span class = "lineno" > 818< / span >   ProductQuantizer * read_ProductQuantizer (IOReader *reader) {< / div >
< div class = "line" > < a name = "l00819" > < / a > < span class = "lineno" > 819< / span >   ProductQuantizer *pq = < span class = "keyword" > new< / span > ProductQuantizer();< / div >
< div class = "line" > < a name = "l00820" > < / a > < span class = "lineno" > 820< / span >   ScopeDeleter1< ProductQuantizer> del (pq);< / div >
< div class = "line" > < a name = "l00821" > < / a > < span class = "lineno" > 821< / span >   < / div >
< div class = "line" > < a name = "l00822" > < / a > < span class = "lineno" > 822< / span >   read_ProductQuantizer(pq, reader);< / div >
< div class = "line" > < a name = "l00823" > < / a > < span class = "lineno" > 823< / span >   del.release ();< / div >
< div class = "line" > < a name = "l00824" > < / a > < span class = "lineno" > 824< / span >   < span class = "keywordflow" > return< / span > pq;< / div >
< div class = "line" > < a name = "l00825" > < / a > < span class = "lineno" > 825< / span >   }< / div >
< div class = "line" > < a name = "l00826" > < / a > < span class = "lineno" > 826< / span >   < / div >
< div class = "line" > < a name = "l00827" > < / a > < span class = "lineno" > 827< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_ivf_header (< / div >
< div class = "line" > < a name = "l00828" > < / a > < span class = "lineno" > 828< / span >   IndexIVF *ivf, IOReader *f,< / div >
< div class = "line" > < a name = "l00829" > < / a > < span class = "lineno" > 829< / span >   std::vector< std::vector< Index::idx_t> > *ids = < span class = "keyword" > nullptr< / span > )< / div >
< div class = "line" > < a name = "l00830" > < / a > < span class = "lineno" > 830< / span >   {< / div >
< div class = "line" > < a name = "l00831" > < / a > < span class = "lineno" > 831< / span >   read_index_header (ivf, f);< / div >
< div class = "line" > < a name = "l00832" > < / a > < span class = "lineno" > 832< / span >   READ1 (ivf-> nlist);< / div >
< div class = "line" > < a name = "l00833" > < / a > < span class = "lineno" > 833< / span >   READ1 (ivf-> nprobe);< / div >
< div class = "line" > < a name = "l00834" > < / a > < span class = "lineno" > 834< / span >   ivf-> quantizer = read_index (f);< / div >
< div class = "line" > < a name = "l00835" > < / a > < span class = "lineno" > 835< / span >   ivf-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00836" > < / a > < span class = "lineno" > 836< / span >   < span class = "keywordflow" > if< / span > (ids) { < span class = "comment" > // used in legacy " Iv" formats< / span > < / div >
< div class = "line" > < a name = "l00837" > < / a > < span class = "lineno" > 837< / span >   ids-> resize (ivf-> nlist);< / div >
< div class = "line" > < a name = "l00838" > < / a > < span class = "lineno" > 838< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ivf-> nlist; i++)< / div >
< div class = "line" > < a name = "l00839" > < / a > < span class = "lineno" > 839< / span >   READVECTOR ((*ids)[i]);< / div >
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< div class = "line" > < a name = "l00840" > < / a > < span class = "lineno" > 840< / span >   }< / div >
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< div class = "line" > < a name = "l00841" > < / a > < span class = "lineno" > 841< / span >   READ1 (ivf-> maintain_direct_map);< / div >
< div class = "line" > < a name = "l00842" > < / a > < span class = "lineno" > 842< / span >   READVECTOR (ivf-> direct_map);< / div >
< div class = "line" > < a name = "l00843" > < / a > < span class = "lineno" > 843< / span >   }< / div >
< div class = "line" > < a name = "l00844" > < / a > < span class = "lineno" > 844< / span >   < / div >
< div class = "line" > < a name = "l00845" > < / a > < span class = "lineno" > 845< / span >   < span class = "comment" > // used for legacy formats< / span > < / div >
< div class = "line" > < a name = "l00846" > < / a > < span class = "lineno" > 846< / span >   < span class = "keyword" > static< / span > ArrayInvertedLists *set_array_invlist(< / div >
< div class = "line" > < a name = "l00847" > < / a > < span class = "lineno" > 847< / span >   IndexIVF *ivf, std::vector< std::vector< Index::idx_t> > & ids)< / div >
< div class = "line" > < a name = "l00848" > < / a > < span class = "lineno" > 848< / span >   {< / div >
< div class = "line" > < a name = "l00849" > < / a > < span class = "lineno" > 849< / span >   ArrayInvertedLists *ail = < span class = "keyword" > new< / span > ArrayInvertedLists (< / div >
< div class = "line" > < a name = "l00850" > < / a > < span class = "lineno" > 850< / span >   ivf-> nlist, ivf-> code_size);< / div >
< div class = "line" > < a name = "l00851" > < / a > < span class = "lineno" > 851< / span >   std::swap (ail-> ids, ids);< / div >
< div class = "line" > < a name = "l00852" > < / a > < span class = "lineno" > 852< / span >   ivf-> invlists = ail;< / div >
< div class = "line" > < a name = "l00853" > < / a > < span class = "lineno" > 853< / span >   ivf-> own_invlists = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l00854" > < / a > < span class = "lineno" > 854< / span >   < span class = "keywordflow" > return< / span > ail;< / div >
< div class = "line" > < a name = "l00855" > < / a > < span class = "lineno" > 855< / span >   }< / div >
< div class = "line" > < a name = "l00856" > < / a > < span class = "lineno" > 856< / span >   < / div >
< div class = "line" > < a name = "l00857" > < / a > < span class = "lineno" > 857< / span >   < span class = "keyword" > static< / span > IndexIVFPQ *read_ivfpq (IOReader *f, uint32_t h, < span class = "keywordtype" > int< / span > io_flags)< / div >
< div class = "line" > < a name = "l00858" > < / a > < span class = "lineno" > 858< / span >   {< / div >
< div class = "line" > < a name = "l00859" > < / a > < span class = "lineno" > 859< / span >   < span class = "keywordtype" > bool< / span > legacy = h == fourcc (< span class = "stringliteral" > " IvQR" < / span > ) || h == fourcc (< span class = "stringliteral" > " IvPQ" < / span > );< / div >
< div class = "line" > < a name = "l00860" > < / a > < span class = "lineno" > 860< / span >   < / div >
< div class = "line" > < a name = "l00861" > < / a > < span class = "lineno" > 861< / span >   IndexIVFPQR *ivfpqr =< / div >
< div class = "line" > < a name = "l00862" > < / a > < span class = "lineno" > 862< / span >   h == fourcc (< span class = "stringliteral" > " IvQR" < / span > ) || h == fourcc (< span class = "stringliteral" > " IwQR" < / span > ) ?< / div >
< div class = "line" > < a name = "l00863" > < / a > < span class = "lineno" > 863< / span >   < span class = "keyword" > new< / span > IndexIVFPQR () : nullptr;< / div >
< div class = "line" > < a name = "l00864" > < / a > < span class = "lineno" > 864< / span >   IndexIVFPQ * ivpq = ivfpqr ? ivfpqr : < span class = "keyword" > new< / span > IndexIVFPQ ();< / div >
< div class = "line" > < a name = "l00865" > < / a > < span class = "lineno" > 865< / span >   < / div >
< div class = "line" > < a name = "l00866" > < / a > < span class = "lineno" > 866< / span >   std::vector< std::vector< Index::idx_t> > ids;< / div >
< div class = "line" > < a name = "l00867" > < / a > < span class = "lineno" > 867< / span >   read_ivf_header (ivpq, f, legacy ? & ids : < span class = "keyword" > nullptr< / span > );< / div >
< div class = "line" > < a name = "l00868" > < / a > < span class = "lineno" > 868< / span >   READ1 (ivpq-> by_residual);< / div >
< div class = "line" > < a name = "l00869" > < / a > < span class = "lineno" > 869< / span >   READ1 (ivpq-> code_size);< / div >
< div class = "line" > < a name = "l00870" > < / a > < span class = "lineno" > 870< / span >   read_ProductQuantizer (& ivpq-> pq, f);< / div >
< div class = "line" > < a name = "l00871" > < / a > < span class = "lineno" > 871< / span >   < / div >
< div class = "line" > < a name = "l00872" > < / a > < span class = "lineno" > 872< / span >   < span class = "keywordflow" > if< / span > (legacy) {< / div >
< div class = "line" > < a name = "l00873" > < / a > < span class = "lineno" > 873< / span >   ArrayInvertedLists *ail = set_array_invlist (ivpq, ids);< / div >
< div class = "line" > < a name = "l00874" > < / a > < span class = "lineno" > 874< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ail-> nlist; i++)< / div >
< div class = "line" > < a name = "l00875" > < / a > < span class = "lineno" > 875< / span >   READVECTOR (ail-> codes[i]);< / div >
< div class = "line" > < a name = "l00876" > < / a > < span class = "lineno" > 876< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l00877" > < / a > < span class = "lineno" > 877< / span >   read_InvertedLists (ivpq, f, io_flags);< / div >
< div class = "line" > < a name = "l00878" > < / a > < span class = "lineno" > 878< / span >   }< / div >
< div class = "line" > < a name = "l00879" > < / a > < span class = "lineno" > 879< / span >   < / div >
< div class = "line" > < a name = "l00880" > < / a > < span class = "lineno" > 880< / span >   < span class = "keywordflow" > if< / span > (ivpq-> is_trained) {< / div >
< div class = "line" > < a name = "l00881" > < / a > < span class = "lineno" > 881< / span >   < span class = "comment" > // precomputed table not stored. It is cheaper to recompute it< / span > < / div >
< div class = "line" > < a name = "l00882" > < / a > < span class = "lineno" > 882< / span >   ivpq-> use_precomputed_table = 0;< / div >
< div class = "line" > < a name = "l00883" > < / a > < span class = "lineno" > 883< / span >   < span class = "keywordflow" > if< / span > (ivpq-> by_residual)< / div >
< div class = "line" > < a name = "l00884" > < / a > < span class = "lineno" > 884< / span >   ivpq-> precompute_table ();< / div >
< div class = "line" > < a name = "l00885" > < / a > < span class = "lineno" > 885< / span >   < span class = "keywordflow" > if< / span > (ivfpqr) {< / div >
< div class = "line" > < a name = "l00886" > < / a > < span class = "lineno" > 886< / span >   read_ProductQuantizer (& ivfpqr-> refine_pq, f);< / div >
< div class = "line" > < a name = "l00887" > < / a > < span class = "lineno" > 887< / span >   READVECTOR (ivfpqr-> refine_codes);< / div >
< div class = "line" > < a name = "l00888" > < / a > < span class = "lineno" > 888< / span >   READ1 (ivfpqr-> k_factor);< / div >
< div class = "line" > < a name = "l00889" > < / a > < span class = "lineno" > 889< / span >   }< / div >
< div class = "line" > < a name = "l00890" > < / a > < span class = "lineno" > 890< / span >   }< / div >
< div class = "line" > < a name = "l00891" > < / a > < span class = "lineno" > 891< / span >   < span class = "keywordflow" > return< / span > ivpq;< / div >
< div class = "line" > < a name = "l00892" > < / a > < span class = "lineno" > 892< / span >   }< / div >
< div class = "line" > < a name = "l00893" > < / a > < span class = "lineno" > 893< / span >   < / div >
< div class = "line" > < a name = "l00894" > < / a > < span class = "lineno" > 894< / span >   < span class = "keywordtype" > int< / span > read_old_fmt_hack = 0;< / div >
< div class = "line" > < a name = "l00895" > < / a > < span class = "lineno" > 895< / span >   < / div >
< div class = "line" > < a name = "l00896" > < / a > < span class = "lineno" > 896< / span >   Index *read_index (IOReader *f, < span class = "keywordtype" > int< / span > io_flags) {< / div >
< div class = "line" > < a name = "l00897" > < / a > < span class = "lineno" > 897< / span >   Index * idx = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l00898" > < / a > < span class = "lineno" > 898< / span >   uint32_t h;< / div >
< div class = "line" > < a name = "l00899" > < / a > < span class = "lineno" > 899< / span >   READ1 (h);< / div >
< div class = "line" > < a name = "l00900" > < / a > < span class = "lineno" > 900< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxFI" < / span > ) || h == fourcc (< span class = "stringliteral" > " IxF2" < / span > )) {< / div >
< div class = "line" > < a name = "l00901" > < / a > < span class = "lineno" > 901< / span >   IndexFlat *idxf;< / div >
< div class = "line" > < a name = "l00902" > < / a > < span class = "lineno" > 902< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxFI" < / span > )) idxf = < span class = "keyword" > new< / span > IndexFlatIP ();< / div >
< div class = "line" > < a name = "l00903" > < / a > < span class = "lineno" > 903< / span >   < span class = "keywordflow" > else< / span > idxf = < span class = "keyword" > new< / span > IndexFlatL2 ();< / div >
< div class = "line" > < a name = "l00904" > < / a > < span class = "lineno" > 904< / span >   read_index_header (idxf, f);< / div >
< div class = "line" > < a name = "l00905" > < / a > < span class = "lineno" > 905< / span >   READVECTOR (idxf-> xb);< / div >
< div class = "line" > < a name = "l00906" > < / a > < span class = "lineno" > 906< / span >   FAISS_THROW_IF_NOT (idxf-> xb.size() == idxf-> ntotal * idxf-> d);< / div >
< div class = "line" > < a name = "l00907" > < / a > < span class = "lineno" > 907< / span >   < span class = "comment" > // leak!< / span > < / div >
< div class = "line" > < a name = "l00908" > < / a > < span class = "lineno" > 908< / span >   idx = idxf;< / div >
< div class = "line" > < a name = "l00909" > < / a > < span class = "lineno" > 909< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc(< span class = "stringliteral" > " IxHE" < / span > ) || h == fourcc(< span class = "stringliteral" > " IxHe" < / span > )) {< / div >
< div class = "line" > < a name = "l00910" > < / a > < span class = "lineno" > 910< / span >   IndexLSH * idxl = < span class = "keyword" > new< / span > IndexLSH ();< / div >
< div class = "line" > < a name = "l00911" > < / a > < span class = "lineno" > 911< / span >   read_index_header (idxl, f);< / div >
< div class = "line" > < a name = "l00912" > < / a > < span class = "lineno" > 912< / span >   READ1 (idxl-> nbits);< / div >
< div class = "line" > < a name = "l00913" > < / a > < span class = "lineno" > 913< / span >   READ1 (idxl-> rotate_data);< / div >
< div class = "line" > < a name = "l00914" > < / a > < span class = "lineno" > 914< / span >   READ1 (idxl-> train_thresholds);< / div >
< div class = "line" > < a name = "l00915" > < / a > < span class = "lineno" > 915< / span >   READVECTOR (idxl-> thresholds);< / div >
< div class = "line" > < a name = "l00916" > < / a > < span class = "lineno" > 916< / span >   READ1 (idxl-> bytes_per_vec);< / div >
< div class = "line" > < a name = "l00917" > < / a > < span class = "lineno" > 917< / span >   < span class = "keywordflow" > if< / span > (h == fourcc(< span class = "stringliteral" > " IxHE" < / span > )) {< / div >
< div class = "line" > < a name = "l00918" > < / a > < span class = "lineno" > 918< / span >   FAISS_THROW_IF_NOT_FMT (idxl-> nbits % 64 == 0,< / div >
< div class = "line" > < a name = "l00919" > < / a > < span class = "lineno" > 919< / span >   < span class = "stringliteral" > " can only read old format IndexLSH with " < / span > < / div >
< div class = "line" > < a name = "l00920" > < / a > < span class = "lineno" > 920< / span >   < span class = "stringliteral" > " nbits multiple of 64 (got %d)" < / span > ,< / div >
< div class = "line" > < a name = "l00921" > < / a > < span class = "lineno" > 921< / span >   (< span class = "keywordtype" > int< / span > ) idxl-> nbits);< / div >
< div class = "line" > < a name = "l00922" > < / a > < span class = "lineno" > 922< / span >   < span class = "comment" > // leak< / span > < / div >
< div class = "line" > < a name = "l00923" > < / a > < span class = "lineno" > 923< / span >   idxl-> bytes_per_vec *= 8;< / div >
< div class = "line" > < a name = "l00924" > < / a > < span class = "lineno" > 924< / span >   }< / div >
< div class = "line" > < a name = "l00925" > < / a > < span class = "lineno" > 925< / span >   {< / div >
< div class = "line" > < a name = "l00926" > < / a > < span class = "lineno" > 926< / span >   RandomRotationMatrix *rrot = < span class = "keyword" > dynamic_cast< < / span > RandomRotationMatrix *< span class = "keyword" > > < / span > < / div >
< div class = "line" > < a name = "l00927" > < / a > < span class = "lineno" > 927< / span >   (read_VectorTransform (f));< / div >
< div class = "line" > < a name = "l00928" > < / a > < span class = "lineno" > 928< / span >   FAISS_THROW_IF_NOT_MSG(rrot, < span class = "stringliteral" > " expected a random rotation" < / span > );< / div >
< div class = "line" > < a name = "l00929" > < / a > < span class = "lineno" > 929< / span >   idxl-> rrot = *rrot;< / div >
< div class = "line" > < a name = "l00930" > < / a > < span class = "lineno" > 930< / span >   < span class = "keyword" > delete< / span > rrot;< / div >
< div class = "line" > < a name = "l00931" > < / a > < span class = "lineno" > 931< / span >   }< / div >
< div class = "line" > < a name = "l00932" > < / a > < span class = "lineno" > 932< / span >   READVECTOR (idxl-> codes);< / div >
< div class = "line" > < a name = "l00933" > < / a > < span class = "lineno" > 933< / span >   FAISS_THROW_IF_NOT (idxl-> rrot.d_in == idxl-> d & & < / div >
< div class = "line" > < a name = "l00934" > < / a > < span class = "lineno" > 934< / span >   idxl-> rrot.d_out == idxl-> nbits);< / div >
< div class = "line" > < a name = "l00935" > < / a > < span class = "lineno" > 935< / span >   FAISS_THROW_IF_NOT (< / div >
< div class = "line" > < a name = "l00936" > < / a > < span class = "lineno" > 936< / span >   idxl-> codes.size() == idxl-> ntotal * idxl-> bytes_per_vec);< / div >
< div class = "line" > < a name = "l00937" > < / a > < span class = "lineno" > 937< / span >   idx = idxl;< / div >
< div class = "line" > < a name = "l00938" > < / a > < span class = "lineno" > 938< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxPQ" < / span > ) || h == fourcc (< span class = "stringliteral" > " IxPo" < / span > ) ||< / div >
< div class = "line" > < a name = "l00939" > < / a > < span class = "lineno" > 939< / span >   h == fourcc (< span class = "stringliteral" > " IxPq" < / span > )) {< / div >
< div class = "line" > < a name = "l00940" > < / a > < span class = "lineno" > 940< / span >   < span class = "comment" > // IxPQ and IxPo were merged into the same IndexPQ object< / span > < / div >
< div class = "line" > < a name = "l00941" > < / a > < span class = "lineno" > 941< / span >   IndexPQ * idxp =< span class = "keyword" > new< / span > IndexPQ ();< / div >
< div class = "line" > < a name = "l00942" > < / a > < span class = "lineno" > 942< / span >   read_index_header (idxp, f);< / div >
< div class = "line" > < a name = "l00943" > < / a > < span class = "lineno" > 943< / span >   read_ProductQuantizer (& idxp-> pq, f);< / div >
< div class = "line" > < a name = "l00944" > < / a > < span class = "lineno" > 944< / span >   READVECTOR (idxp-> codes);< / div >
< div class = "line" > < a name = "l00945" > < / a > < span class = "lineno" > 945< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxPo" < / span > ) || h == fourcc (< span class = "stringliteral" > " IxPq" < / span > )) {< / div >
< div class = "line" > < a name = "l00946" > < / a > < span class = "lineno" > 946< / span >   READ1 (idxp-> search_type);< / div >
< div class = "line" > < a name = "l00947" > < / a > < span class = "lineno" > 947< / span >   READ1 (idxp-> encode_signs);< / div >
< div class = "line" > < a name = "l00948" > < / a > < span class = "lineno" > 948< / span >   READ1 (idxp-> polysemous_ht);< / div >
< div class = "line" > < a name = "l00949" > < / a > < span class = "lineno" > 949< / span >   }< / div >
< div class = "line" > < a name = "l00950" > < / a > < span class = "lineno" > 950< / span >   < span class = "comment" > // Old versoins of PQ all had metric_type set to INNER_PRODUCT< / span > < / div >
< div class = "line" > < a name = "l00951" > < / a > < span class = "lineno" > 951< / span >   < span class = "comment" > // when they were in fact using L2. Therefore, we force metric type< / span > < / div >
< div class = "line" > < a name = "l00952" > < / a > < span class = "lineno" > 952< / span >   < span class = "comment" > // to L2 when the old format is detected< / span > < / div >
< div class = "line" > < a name = "l00953" > < / a > < span class = "lineno" > 953< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxPQ" < / span > ) || h == fourcc (< span class = "stringliteral" > " IxPo" < / span > )) {< / div >
< div class = "line" > < a name = "l00954" > < / a > < span class = "lineno" > 954< / span >   idxp-> metric_type = METRIC_L2;< / div >
< div class = "line" > < a name = "l00955" > < / a > < span class = "lineno" > 955< / span >   }< / div >
< div class = "line" > < a name = "l00956" > < / a > < span class = "lineno" > 956< / span >   idx = idxp;< / div >
< div class = "line" > < a name = "l00957" > < / a > < span class = "lineno" > 957< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IvFl" < / span > ) || h == fourcc(< span class = "stringliteral" > " IvFL" < / span > )) { < span class = "comment" > // legacy< / span > < / div >
< div class = "line" > < a name = "l00958" > < / a > < span class = "lineno" > 958< / span >   IndexIVFFlat * ivfl = < span class = "keyword" > new< / span > IndexIVFFlat ();< / div >
< div class = "line" > < a name = "l00959" > < / a > < span class = "lineno" > 959< / span >   std::vector< std::vector< Index::idx_t> > ids;< / div >
< div class = "line" > < a name = "l00960" > < / a > < span class = "lineno" > 960< / span >   read_ivf_header (ivfl, f, & ids);< / div >
< div class = "line" > < a name = "l00961" > < / a > < span class = "lineno" > 961< / span >   ivfl-> code_size = ivfl-> d * < span class = "keyword" > sizeof< / span > (float);< / div >
< div class = "line" > < a name = "l00962" > < / a > < span class = "lineno" > 962< / span >   ArrayInvertedLists *ail = set_array_invlist (ivfl, ids);< / div >
< div class = "line" > < a name = "l00963" > < / a > < span class = "lineno" > 963< / span >   < / div >
< div class = "line" > < a name = "l00964" > < / a > < span class = "lineno" > 964< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IvFL" < / span > )) {< / div >
< div class = "line" > < a name = "l00965" > < / a > < span class = "lineno" > 965< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ivfl-> nlist; i++) {< / div >
< div class = "line" > < a name = "l00966" > < / a > < span class = "lineno" > 966< / span >   READVECTOR (ail-> codes[i]);< / div >
< div class = "line" > < a name = "l00967" > < / a > < span class = "lineno" > 967< / span >   }< / div >
< div class = "line" > < a name = "l00968" > < / a > < span class = "lineno" > 968< / span >   } < span class = "keywordflow" > else< / span > { < span class = "comment" > // old format< / span > < / div >
< div class = "line" > < a name = "l00969" > < / a > < span class = "lineno" > 969< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ivfl-> nlist; i++) {< / div >
< div class = "line" > < a name = "l00970" > < / a > < span class = "lineno" > 970< / span >   std::vector< float> vec;< / div >
< div class = "line" > < a name = "l00971" > < / a > < span class = "lineno" > 971< / span >   READVECTOR (vec);< / div >
< div class = "line" > < a name = "l00972" > < / a > < span class = "lineno" > 972< / span >   ail-> codes[i].resize(vec.size() * < span class = "keyword" > sizeof< / span > (float));< / div >
< div class = "line" > < a name = "l00973" > < / a > < span class = "lineno" > 973< / span >   memcpy(ail-> codes[i].data(), vec.data(),< / div >
< div class = "line" > < a name = "l00974" > < / a > < span class = "lineno" > 974< / span >   ail-> codes[i].size());< / div >
< div class = "line" > < a name = "l00975" > < / a > < span class = "lineno" > 975< / span >   }< / div >
< div class = "line" > < a name = "l00976" > < / a > < span class = "lineno" > 976< / span >   }< / div >
< div class = "line" > < a name = "l00977" > < / a > < span class = "lineno" > 977< / span >   idx = ivfl;< / div >
< div class = "line" > < a name = "l00978" > < / a > < span class = "lineno" > 978< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IwFd" < / span > )) {< / div >
< div class = "line" > < a name = "l00979" > < / a > < span class = "lineno" > 979< / span >   IndexIVFFlatDedup * ivfl = < span class = "keyword" > new< / span > IndexIVFFlatDedup ();< / div >
< div class = "line" > < a name = "l00980" > < / a > < span class = "lineno" > 980< / span >   read_ivf_header (ivfl, f);< / div >
< div class = "line" > < a name = "l00981" > < / a > < span class = "lineno" > 981< / span >   ivfl-> code_size = ivfl-> d * < span class = "keyword" > sizeof< / span > (float);< / div >
< div class = "line" > < a name = "l00982" > < / a > < span class = "lineno" > 982< / span >   {< / div >
< div class = "line" > < a name = "l00983" > < / a > < span class = "lineno" > 983< / span >   std::vector< Index::idx_t> tab;< / div >
< div class = "line" > < a name = "l00984" > < / a > < span class = "lineno" > 984< / span >   READVECTOR (tab);< / div >
< div class = "line" > < a name = "l00985" > < / a > < span class = "lineno" > 985< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > long< / span > i = 0; i < tab.size(); i += 2) {< / div >
< div class = "line" > < a name = "l00986" > < / a > < span class = "lineno" > 986< / span >   std::pair< Index::idx_t, Index::idx_t> < / div >
< div class = "line" > < a name = "l00987" > < / a > < span class = "lineno" > 987< / span >   pair (tab[i], tab[i + 1]);< / div >
< div class = "line" > < a name = "l00988" > < / a > < span class = "lineno" > 988< / span >   ivfl-> instances.insert (pair);< / div >
< div class = "line" > < a name = "l00989" > < / a > < span class = "lineno" > 989< / span >   }< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l00990" > < / a > < span class = "lineno" > 990< / span >   }< / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l00991" > < / a > < span class = "lineno" > 991< / span >   read_InvertedLists (ivfl, f, io_flags);< / div >
< div class = "line" > < a name = "l00992" > < / a > < span class = "lineno" > 992< / span >   idx = ivfl;< / div >
< div class = "line" > < a name = "l00993" > < / a > < span class = "lineno" > 993< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IwFl" < / span > )) {< / div >
< div class = "line" > < a name = "l00994" > < / a > < span class = "lineno" > 994< / span >   IndexIVFFlat * ivfl = < span class = "keyword" > new< / span > IndexIVFFlat ();< / div >
< div class = "line" > < a name = "l00995" > < / a > < span class = "lineno" > 995< / span >   read_ivf_header (ivfl, f);< / div >
< div class = "line" > < a name = "l00996" > < / a > < span class = "lineno" > 996< / span >   ivfl-> code_size = ivfl-> d * < span class = "keyword" > sizeof< / span > (float);< / div >
< div class = "line" > < a name = "l00997" > < / a > < span class = "lineno" > 997< / span >   read_InvertedLists (ivfl, f, io_flags);< / div >
< div class = "line" > < a name = "l00998" > < / a > < span class = "lineno" > 998< / span >   idx = ivfl;< / div >
< div class = "line" > < a name = "l00999" > < / a > < span class = "lineno" > 999< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxSQ" < / span > )) {< / div >
< div class = "line" > < a name = "l01000" > < / a > < span class = "lineno" > 1000< / span >   IndexScalarQuantizer * idxs = < span class = "keyword" > new< / span > IndexScalarQuantizer ();< / div >
< div class = "line" > < a name = "l01001" > < / a > < span class = "lineno" > 1001< / span >   read_index_header (idxs, f);< / div >
< div class = "line" > < a name = "l01002" > < / a > < span class = "lineno" > 1002< / span >   read_ScalarQuantizer (& idxs-> sq, f);< / div >
< div class = "line" > < a name = "l01003" > < / a > < span class = "lineno" > 1003< / span >   READVECTOR (idxs-> codes);< / div >
< div class = "line" > < a name = "l01004" > < / a > < span class = "lineno" > 1004< / span >   idxs-> code_size = idxs-> sq.code_size;< / div >
< div class = "line" > < a name = "l01005" > < / a > < span class = "lineno" > 1005< / span >   idx = idxs;< / div >
< div class = "line" > < a name = "l01006" > < / a > < span class = "lineno" > 1006< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IvSQ" < / span > )) { < span class = "comment" > // legacy< / span > < / div >
< div class = "line" > < a name = "l01007" > < / a > < span class = "lineno" > 1007< / span >   IndexIVFScalarQuantizer * ivsc = < span class = "keyword" > new< / span > IndexIVFScalarQuantizer();< / div >
< div class = "line" > < a name = "l01008" > < / a > < span class = "lineno" > 1008< / span >   std::vector< std::vector< Index::idx_t> > ids;< / div >
< div class = "line" > < a name = "l01009" > < / a > < span class = "lineno" > 1009< / span >   read_ivf_header (ivsc, f, & ids);< / div >
< div class = "line" > < a name = "l01010" > < / a > < span class = "lineno" > 1010< / span >   read_ScalarQuantizer (& ivsc-> sq, f);< / div >
< div class = "line" > < a name = "l01011" > < / a > < span class = "lineno" > 1011< / span >   READ1 (ivsc-> code_size);< / div >
< div class = "line" > < a name = "l01012" > < / a > < span class = "lineno" > 1012< / span >   ArrayInvertedLists *ail = set_array_invlist (ivsc, ids);< / div >
< div class = "line" > < a name = "l01013" > < / a > < span class = "lineno" > 1013< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < ivsc-> nlist; i++)< / div >
< div class = "line" > < a name = "l01014" > < / a > < span class = "lineno" > 1014< / span >   READVECTOR (ail-> codes[i]);< / div >
< div class = "line" > < a name = "l01015" > < / a > < span class = "lineno" > 1015< / span >   idx = ivsc;< / div >
< div class = "line" > < a name = "l01016" > < / a > < span class = "lineno" > 1016< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IwSQ" < / span > ) || h == fourcc (< span class = "stringliteral" > " IwSq" < / span > )) {< / div >
< div class = "line" > < a name = "l01017" > < / a > < span class = "lineno" > 1017< / span >   IndexIVFScalarQuantizer * ivsc = < span class = "keyword" > new< / span > IndexIVFScalarQuantizer();< / div >
< div class = "line" > < a name = "l01018" > < / a > < span class = "lineno" > 1018< / span >   read_ivf_header (ivsc, f);< / div >
< div class = "line" > < a name = "l01019" > < / a > < span class = "lineno" > 1019< / span >   read_ScalarQuantizer (& ivsc-> sq, f);< / div >
< div class = "line" > < a name = "l01020" > < / a > < span class = "lineno" > 1020< / span >   READ1 (ivsc-> code_size);< / div >
< div class = "line" > < a name = "l01021" > < / a > < span class = "lineno" > 1021< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IwSQ" < / span > )) {< / div >
< div class = "line" > < a name = "l01022" > < / a > < span class = "lineno" > 1022< / span >   ivsc-> by_residual = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01023" > < / a > < span class = "lineno" > 1023< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01024" > < / a > < span class = "lineno" > 1024< / span >   READ1 (ivsc-> by_residual);< / div >
< div class = "line" > < a name = "l01025" > < / a > < span class = "lineno" > 1025< / span >   }< / div >
< div class = "line" > < a name = "l01026" > < / a > < span class = "lineno" > 1026< / span >   read_InvertedLists (ivsc, f, io_flags);< / div >
< div class = "line" > < a name = "l01027" > < / a > < span class = "lineno" > 1027< / span >   idx = ivsc;< / div >
< div class = "line" > < a name = "l01028" > < / a > < span class = "lineno" > 1028< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IwSh" < / span > )) {< / div >
< div class = "line" > < a name = "l01029" > < / a > < span class = "lineno" > 1029< / span >   IndexIVFSpectralHash *ivsp = < span class = "keyword" > new< / span > IndexIVFSpectralHash ();< / div >
< div class = "line" > < a name = "l01030" > < / a > < span class = "lineno" > 1030< / span >   read_ivf_header (ivsp, f);< / div >
< div class = "line" > < a name = "l01031" > < / a > < span class = "lineno" > 1031< / span >   ivsp-> vt = read_VectorTransform (f);< / div >
< div class = "line" > < a name = "l01032" > < / a > < span class = "lineno" > 1032< / span >   ivsp-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01033" > < / a > < span class = "lineno" > 1033< / span >   READ1 (ivsp-> nbit);< / div >
< div class = "line" > < a name = "l01034" > < / a > < span class = "lineno" > 1034< / span >   < span class = "comment" > // not stored by write_ivf_header< / span > < / div >
< div class = "line" > < a name = "l01035" > < / a > < span class = "lineno" > 1035< / span >   ivsp-> code_size = (ivsp-> nbit + 7) / 8;< / div >
< div class = "line" > < a name = "l01036" > < / a > < span class = "lineno" > 1036< / span >   READ1 (ivsp-> period);< / div >
< div class = "line" > < a name = "l01037" > < / a > < span class = "lineno" > 1037< / span >   READ1 (ivsp-> threshold_type);< / div >
< div class = "line" > < a name = "l01038" > < / a > < span class = "lineno" > 1038< / span >   READVECTOR (ivsp-> trained);< / div >
< div class = "line" > < a name = "l01039" > < / a > < span class = "lineno" > 1039< / span >   read_InvertedLists (ivsp, f, io_flags);< / div >
< div class = "line" > < a name = "l01040" > < / a > < span class = "lineno" > 1040< / span >   idx = ivsp;< / div >
< div class = "line" > < a name = "l01041" > < / a > < span class = "lineno" > 1041< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IvPQ" < / span > ) || h == fourcc (< span class = "stringliteral" > " IvQR" < / span > ) ||< / div >
< div class = "line" > < a name = "l01042" > < / a > < span class = "lineno" > 1042< / span >   h == fourcc (< span class = "stringliteral" > " IwPQ" < / span > ) || h == fourcc (< span class = "stringliteral" > " IwQR" < / span > )) {< / div >
< div class = "line" > < a name = "l01043" > < / a > < span class = "lineno" > 1043< / span >   < / div >
< div class = "line" > < a name = "l01044" > < / a > < span class = "lineno" > 1044< / span >   idx = read_ivfpq (f, h, io_flags);< / div >
< div class = "line" > < a name = "l01045" > < / a > < span class = "lineno" > 1045< / span >   < / div >
< div class = "line" > < a name = "l01046" > < / a > < span class = "lineno" > 1046< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxPT" < / span > )) {< / div >
< div class = "line" > < a name = "l01047" > < / a > < span class = "lineno" > 1047< / span >   IndexPreTransform * ixpt = < span class = "keyword" > new< / span > IndexPreTransform();< / div >
< div class = "line" > < a name = "l01048" > < / a > < span class = "lineno" > 1048< / span >   ixpt-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01049" > < / a > < span class = "lineno" > 1049< / span >   read_index_header (ixpt, f);< / div >
< div class = "line" > < a name = "l01050" > < / a > < span class = "lineno" > 1050< / span >   < span class = "keywordtype" > int< / span > nt;< / div >
< div class = "line" > < a name = "l01051" > < / a > < span class = "lineno" > 1051< / span >   < span class = "keywordflow" > if< / span > (read_old_fmt_hack == 2) {< / div >
< div class = "line" > < a name = "l01052" > < / a > < span class = "lineno" > 1052< / span >   nt = 1;< / div >
< div class = "line" > < a name = "l01053" > < / a > < span class = "lineno" > 1053< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01054" > < / a > < span class = "lineno" > 1054< / span >   READ1 (nt);< / div >
< div class = "line" > < a name = "l01055" > < / a > < span class = "lineno" > 1055< / span >   }< / div >
< div class = "line" > < a name = "l01056" > < / a > < span class = "lineno" > 1056< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < nt; i++) {< / div >
< div class = "line" > < a name = "l01057" > < / a > < span class = "lineno" > 1057< / span >   ixpt-> chain.push_back (read_VectorTransform (f));< / div >
< div class = "line" > < a name = "l01058" > < / a > < span class = "lineno" > 1058< / span >   }< / div >
< div class = "line" > < a name = "l01059" > < / a > < span class = "lineno" > 1059< / span >   ixpt-> index = read_index (f, io_flags);< / div >
< div class = "line" > < a name = "l01060" > < / a > < span class = "lineno" > 1060< / span >   idx = ixpt;< / div >
< div class = "line" > < a name = "l01061" > < / a > < span class = "lineno" > 1061< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " Imiq" < / span > )) {< / div >
< div class = "line" > < a name = "l01062" > < / a > < span class = "lineno" > 1062< / span >   MultiIndexQuantizer * imiq = < span class = "keyword" > new< / span > MultiIndexQuantizer ();< / div >
< div class = "line" > < a name = "l01063" > < / a > < span class = "lineno" > 1063< / span >   read_index_header (imiq, f);< / div >
< div class = "line" > < a name = "l01064" > < / a > < span class = "lineno" > 1064< / span >   read_ProductQuantizer (& imiq-> pq, f);< / div >
< div class = "line" > < a name = "l01065" > < / a > < span class = "lineno" > 1065< / span >   idx = imiq;< / div >
< div class = "line" > < a name = "l01066" > < / a > < span class = "lineno" > 1066< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxRF" < / span > )) {< / div >
< div class = "line" > < a name = "l01067" > < / a > < span class = "lineno" > 1067< / span >   IndexRefineFlat *idxrf = < span class = "keyword" > new< / span > IndexRefineFlat ();< / div >
< div class = "line" > < a name = "l01068" > < / a > < span class = "lineno" > 1068< / span >   read_index_header (idxrf, f);< / div >
< div class = "line" > < a name = "l01069" > < / a > < span class = "lineno" > 1069< / span >   idxrf-> base_index = read_index(f, io_flags);< / div >
< div class = "line" > < a name = "l01070" > < / a > < span class = "lineno" > 1070< / span >   idxrf-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01071" > < / a > < span class = "lineno" > 1071< / span >   IndexFlat *rf = < span class = "keyword" > dynamic_cast< < / span > IndexFlat*< span class = "keyword" > > < / span > (read_index (f, io_flags));< / div >
< div class = "line" > < a name = "l01072" > < / a > < span class = "lineno" > 1072< / span >   std::swap (*rf, idxrf-> refine_index);< / div >
< div class = "line" > < a name = "l01073" > < / a > < span class = "lineno" > 1073< / span >   < span class = "keyword" > delete< / span > rf;< / div >
< div class = "line" > < a name = "l01074" > < / a > < span class = "lineno" > 1074< / span >   READ1 (idxrf-> k_factor);< / div >
< div class = "line" > < a name = "l01075" > < / a > < span class = "lineno" > 1075< / span >   idx = idxrf;< / div >
< div class = "line" > < a name = "l01076" > < / a > < span class = "lineno" > 1076< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IxMp" < / span > ) || h == fourcc (< span class = "stringliteral" > " IxM2" < / span > )) {< / div >
< div class = "line" > < a name = "l01077" > < / a > < span class = "lineno" > 1077< / span >   < span class = "keywordtype" > bool< / span > is_map2 = h == fourcc (< span class = "stringliteral" > " IxM2" < / span > );< / div >
< div class = "line" > < a name = "l01078" > < / a > < span class = "lineno" > 1078< / span >   IndexIDMap * idxmap = is_map2 ? < span class = "keyword" > new< / span > IndexIDMap2 () : new IndexIDMap ();< / div >
< div class = "line" > < a name = "l01079" > < / a > < span class = "lineno" > 1079< / span >   read_index_header (idxmap, f);< / div >
< div class = "line" > < a name = "l01080" > < / a > < span class = "lineno" > 1080< / span >   idxmap-> index = read_index (f, io_flags);< / div >
< div class = "line" > < a name = "l01081" > < / a > < span class = "lineno" > 1081< / span >   idxmap-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01082" > < / a > < span class = "lineno" > 1082< / span >   READVECTOR (idxmap-> id_map);< / div >
< div class = "line" > < a name = "l01083" > < / a > < span class = "lineno" > 1083< / span >   < span class = "keywordflow" > if< / span > (is_map2) {< / div >
< div class = "line" > < a name = "l01084" > < / a > < span class = "lineno" > 1084< / span >   < span class = "keyword" > static_cast< < / span > IndexIDMap2*< span class = "keyword" > > < / span > (idxmap)-> construct_rev_map ();< / div >
< div class = "line" > < a name = "l01085" > < / a > < span class = "lineno" > 1085< / span >   }< / div >
< div class = "line" > < a name = "l01086" > < / a > < span class = "lineno" > 1086< / span >   idx = idxmap;< / div >
< div class = "line" > < a name = "l01087" > < / a > < span class = "lineno" > 1087< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " Ix2L" < / span > )) {< / div >
< div class = "line" > < a name = "l01088" > < / a > < span class = "lineno" > 1088< / span >   Index2Layer * idxp = < span class = "keyword" > new< / span > Index2Layer ();< / div >
< div class = "line" > < a name = "l01089" > < / a > < span class = "lineno" > 1089< / span >   read_index_header (idxp, f);< / div >
< div class = "line" > < a name = "l01090" > < / a > < span class = "lineno" > 1090< / span >   idxp-> q1.quantizer = read_index (f, io_flags);< / div >
< div class = "line" > < a name = "l01091" > < / a > < span class = "lineno" > 1091< / span >   READ1 (idxp-> q1.nlist);< / div >
< div class = "line" > < a name = "l01092" > < / a > < span class = "lineno" > 1092< / span >   READ1 (idxp-> q1.quantizer_trains_alone);< / div >
< div class = "line" > < a name = "l01093" > < / a > < span class = "lineno" > 1093< / span >   read_ProductQuantizer (& idxp-> pq, f);< / div >
< div class = "line" > < a name = "l01094" > < / a > < span class = "lineno" > 1094< / span >   READ1 (idxp-> code_size_1);< / div >
< div class = "line" > < a name = "l01095" > < / a > < span class = "lineno" > 1095< / span >   READ1 (idxp-> code_size_2);< / div >
< div class = "line" > < a name = "l01096" > < / a > < span class = "lineno" > 1096< / span >   READ1 (idxp-> code_size);< / div >
< div class = "line" > < a name = "l01097" > < / a > < span class = "lineno" > 1097< / span >   READVECTOR (idxp-> codes);< / div >
< div class = "line" > < a name = "l01098" > < / a > < span class = "lineno" > 1098< / span >   idx = idxp;< / div >
< div class = "line" > < a name = "l01099" > < / a > < span class = "lineno" > 1099< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc(< span class = "stringliteral" > " IHNf" < / span > ) || h == fourcc(< span class = "stringliteral" > " IHNp" < / span > ) ||< / div >
< div class = "line" > < a name = "l01100" > < / a > < span class = "lineno" > 1100< / span >   h == fourcc(< span class = "stringliteral" > " IHNs" < / span > ) || h == fourcc(< span class = "stringliteral" > " IHN2" < / span > )) {< / div >
< div class = "line" > < a name = "l01101" > < / a > < span class = "lineno" > 1101< / span >   IndexHNSW *idxhnsw = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01102" > < / a > < span class = "lineno" > 1102< / span >   < span class = "keywordflow" > if< / span > (h == fourcc(< span class = "stringliteral" > " IHNf" < / span > )) idxhnsw = < span class = "keyword" > new< / span > IndexHNSWFlat ();< / div >
< div class = "line" > < a name = "l01103" > < / a > < span class = "lineno" > 1103< / span >   < span class = "keywordflow" > if< / span > (h == fourcc(< span class = "stringliteral" > " IHNp" < / span > )) idxhnsw = < span class = "keyword" > new< / span > IndexHNSWPQ ();< / div >
< div class = "line" > < a name = "l01104" > < / a > < span class = "lineno" > 1104< / span >   < span class = "keywordflow" > if< / span > (h == fourcc(< span class = "stringliteral" > " IHNs" < / span > )) idxhnsw = < span class = "keyword" > new< / span > IndexHNSWSQ ();< / div >
< div class = "line" > < a name = "l01105" > < / a > < span class = "lineno" > 1105< / span >   < span class = "keywordflow" > if< / span > (h == fourcc(< span class = "stringliteral" > " IHN2" < / span > )) idxhnsw = < span class = "keyword" > new< / span > IndexHNSW2Level ();< / div >
< div class = "line" > < a name = "l01106" > < / a > < span class = "lineno" > 1106< / span >   read_index_header (idxhnsw, f);< / div >
< div class = "line" > < a name = "l01107" > < / a > < span class = "lineno" > 1107< / span >   read_HNSW (& idxhnsw-> hnsw, f);< / div >
< div class = "line" > < a name = "l01108" > < / a > < span class = "lineno" > 1108< / span >   idxhnsw-> storage = read_index (f, io_flags);< / div >
< div class = "line" > < a name = "l01109" > < / a > < span class = "lineno" > 1109< / span >   idxhnsw-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01110" > < / a > < span class = "lineno" > 1110< / span >   < span class = "keywordflow" > if< / span > (h == fourcc(< span class = "stringliteral" > " IHNp" < / span > )) {< / div >
< div class = "line" > < a name = "l01111" > < / a > < span class = "lineno" > 1111< / span >   < span class = "keyword" > dynamic_cast< < / span > IndexPQ*< span class = "keyword" > > < / span > (idxhnsw-> storage)-> pq.compute_sdc_table ();< / div >
< div class = "line" > < a name = "l01112" > < / a > < span class = "lineno" > 1112< / span >   }< / div >
< div class = "line" > < a name = "l01113" > < / a > < span class = "lineno" > 1113< / span >   idx = idxhnsw;< / div >
< div class = "line" > < a name = "l01114" > < / a > < span class = "lineno" > 1114< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01115" > < / a > < span class = "lineno" > 1115< / span >   FAISS_THROW_FMT(< span class = "stringliteral" > " Index type 0x%08x not supported\n" < / span > , h);< / div >
< div class = "line" > < a name = "l01116" > < / a > < span class = "lineno" > 1116< / span >   idx = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01117" > < / a > < span class = "lineno" > 1117< / span >   }< / div >
< div class = "line" > < a name = "l01118" > < / a > < span class = "lineno" > 1118< / span >   < span class = "keywordflow" > return< / span > idx;< / div >
< div class = "line" > < a name = "l01119" > < / a > < span class = "lineno" > 1119< / span >   }< / div >
< div class = "line" > < a name = "l01120" > < / a > < span class = "lineno" > 1120< / span >   < / div >
< div class = "line" > < a name = "l01121" > < / a > < span class = "lineno" > 1121< / span >   < / div >
< div class = "line" > < a name = "l01122" > < / a > < span class = "lineno" > 1122< / span >   Index *read_index (FILE * f, < span class = "keywordtype" > int< / span > io_flags) {< / div >
< div class = "line" > < a name = "l01123" > < / a > < span class = "lineno" > 1123< / span >   FileIOReader reader(f);< / div >
< div class = "line" > < a name = "l01124" > < / a > < span class = "lineno" > 1124< / span >   < span class = "keywordflow" > return< / span > read_index(& reader, io_flags);< / div >
< div class = "line" > < a name = "l01125" > < / a > < span class = "lineno" > 1125< / span >   }< / div >
< div class = "line" > < a name = "l01126" > < / a > < span class = "lineno" > 1126< / span >   < / div >
< div class = "line" > < a name = "l01127" > < / a > < span class = "lineno" > 1127< / span >   Index *read_index (< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname, < span class = "keywordtype" > int< / span > io_flags) {< / div >
< div class = "line" > < a name = "l01128" > < / a > < span class = "lineno" > 1128< / span >   FileIOReader reader(fname);< / div >
< div class = "line" > < a name = "l01129" > < / a > < span class = "lineno" > 1129< / span >   Index *idx = read_index (& reader, io_flags);< / div >
< div class = "line" > < a name = "l01130" > < / a > < span class = "lineno" > 1130< / span >   < span class = "keywordflow" > return< / span > idx;< / div >
< div class = "line" > < a name = "l01131" > < / a > < span class = "lineno" > 1131< / span >   }< / div >
< div class = "line" > < a name = "l01132" > < / a > < span class = "lineno" > 1132< / span >   < / div >
< div class = "line" > < a name = "l01133" > < / a > < span class = "lineno" > 1133< / span >   VectorTransform *read_VectorTransform (< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname) {< / div >
< div class = "line" > < a name = "l01134" > < / a > < span class = "lineno" > 1134< / span >   FileIOReader reader(fname);< / div >
< div class = "line" > < a name = "l01135" > < / a > < span class = "lineno" > 1135< / span >   VectorTransform *vt = read_VectorTransform (& reader);< / div >
< div class = "line" > < a name = "l01136" > < / a > < span class = "lineno" > 1136< / span >   < span class = "keywordflow" > return< / span > vt;< / div >
< div class = "line" > < a name = "l01137" > < / a > < span class = "lineno" > 1137< / span >   }< / div >
< div class = "line" > < a name = "l01138" > < / a > < span class = "lineno" > 1138< / span >   < / div >
< div class = "line" > < a name = "l01139" > < / a > < span class = "lineno" > 1139< / span >   < span class = "comment" > /*************************************************************< / span > < / div >
< div class = "line" > < a name = "l01140" > < / a > < span class = "lineno" > 1140< / span >   < span class = "comment" > * cloning functions< / span > < / div >
< div class = "line" > < a name = "l01141" > < / a > < span class = "lineno" > 1141< / span >   < span class = "comment" > **************************************************************/< / span > < / div >
< div class = "line" > < a name = "l01142" > < / a > < span class = "lineno" > 1142< / span >   < / div >
< div class = "line" > < a name = "l01143" > < / a > < span class = "lineno" > 1143< / span >   < / div >
< div class = "line" > < a name = "l01144" > < / a > < span class = "lineno" > 1144< / span >   < / div >
< div class = "line" > < a name = "l01145" > < / a > < span class = "lineno" > 1145< / span >   Index * clone_index (< span class = "keyword" > const< / span > Index *index)< / div >
< div class = "line" > < a name = "l01146" > < / a > < span class = "lineno" > 1146< / span >   {< / div >
< div class = "line" > < a name = "l01147" > < / a > < span class = "lineno" > 1147< / span >   Cloner cl;< / div >
< div class = "line" > < a name = "l01148" > < / a > < span class = "lineno" > 1148< / span >   < span class = "keywordflow" > return< / span > cl.clone_Index (index);< / div >
< div class = "line" > < a name = "l01149" > < / a > < span class = "lineno" > 1149< / span >   }< / div >
< div class = "line" > < a name = "l01150" > < / a > < span class = "lineno" > 1150< / span >   < / div >
< div class = "line" > < a name = "l01151" > < / a > < span class = "lineno" > 1151< / span >   < span class = "comment" > // assumes there is a copy constructor ready. Always try from most< / span > < / div >
< div class = "line" > < a name = "l01152" > < / a > < span class = "lineno" > 1152< / span >   < span class = "comment" > // specific to most general< / span > < / div >
< div class = "line" > < a name = "l01153" > < / a > < span class = "lineno" > 1153< / span >   < span class = "preprocessor" > #define TRYCLONE(classname, obj) \< / span > < / div >
< div class = "line" > < a name = "l01154" > < / a > < span class = "lineno" > 1154< / span >   < span class = "preprocessor" > if (const classname *clo = dynamic_cast< const classname *> (obj)) { \< / span > < / div >
< div class = "line" > < a name = "l01155" > < / a > < span class = "lineno" > 1155< / span >   < span class = "preprocessor" > return new classname(*clo); \< / span > < / div >
< div class = "line" > < a name = "l01156" > < / a > < span class = "lineno" > 1156< / span >   < span class = "preprocessor" > } else< / span > < / div >
< div class = "line" > < a name = "l01157" > < / a > < span class = "lineno" > 1157< / span >   < span class = "preprocessor" > < / span > < / div >
< div class = "line" > < a name = "l01158" > < / a > < span class = "lineno" > 1158< / span >   VectorTransform *Cloner::clone_VectorTransform (< span class = "keyword" > const< / span > VectorTransform *vt)< / div >
< div class = "line" > < a name = "l01159" > < / a > < span class = "lineno" > 1159< / span >   {< / div >
< div class = "line" > < a name = "l01160" > < / a > < span class = "lineno" > 1160< / span >   TRYCLONE (RemapDimensionsTransform, vt)< / div >
< div class = "line" > < a name = "l01161" > < / a > < span class = "lineno" > 1161< / span >   TRYCLONE (OPQMatrix, vt)< / div >
< div class = "line" > < a name = "l01162" > < / a > < span class = "lineno" > 1162< / span >   TRYCLONE (PCAMatrix, vt)< / div >
< div class = "line" > < a name = "l01163" > < / a > < span class = "lineno" > 1163< / span >   TRYCLONE (RandomRotationMatrix, vt)< / div >
< div class = "line" > < a name = "l01164" > < / a > < span class = "lineno" > 1164< / span >   TRYCLONE (LinearTransform, vt)< / div >
< div class = "line" > < a name = "l01165" > < / a > < span class = "lineno" > 1165< / span >   {< / div >
< div class = "line" > < a name = "l01166" > < / a > < span class = "lineno" > 1166< / span >   FAISS_THROW_MSG(< span class = "stringliteral" > " clone not supported for this type of VectorTransform" < / span > );< / div >
< div class = "line" > < a name = "l01167" > < / a > < span class = "lineno" > 1167< / span >   }< / div >
< div class = "line" > < a name = "l01168" > < / a > < span class = "lineno" > 1168< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01169" > < / a > < span class = "lineno" > 1169< / span >   }< / div >
< div class = "line" > < a name = "l01170" > < / a > < span class = "lineno" > 1170< / span >   < / div >
< div class = "line" > < a name = "l01171" > < / a > < span class = "lineno" > 1171< / span >   IndexIVF * Cloner::clone_IndexIVF (< span class = "keyword" > const< / span > IndexIVF *ivf)< / div >
< div class = "line" > < a name = "l01172" > < / a > < span class = "lineno" > 1172< / span >   {< / div >
< div class = "line" > < a name = "l01173" > < / a > < span class = "lineno" > 1173< / span >   TRYCLONE (IndexIVFPQR, ivf)< / div >
< div class = "line" > < a name = "l01174" > < / a > < span class = "lineno" > 1174< / span >   TRYCLONE (IndexIVFPQ, ivf)< / div >
< div class = "line" > < a name = "l01175" > < / a > < span class = "lineno" > 1175< / span >   TRYCLONE (IndexIVFFlat, ivf)< / div >
< div class = "line" > < a name = "l01176" > < / a > < span class = "lineno" > 1176< / span >   TRYCLONE (IndexIVFScalarQuantizer, ivf)< / div >
< div class = "line" > < a name = "l01177" > < / a > < span class = "lineno" > 1177< / span >   {< / div >
< div class = "line" > < a name = "l01178" > < / a > < span class = "lineno" > 1178< / span >   FAISS_THROW_MSG(< span class = "stringliteral" > " clone not supported for this type of IndexIVF" < / span > );< / div >
< div class = "line" > < a name = "l01179" > < / a > < span class = "lineno" > 1179< / span >   }< / div >
< div class = "line" > < a name = "l01180" > < / a > < span class = "lineno" > 1180< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01181" > < / a > < span class = "lineno" > 1181< / span >   }< / div >
< div class = "line" > < a name = "l01182" > < / a > < span class = "lineno" > 1182< / span >   < / div >
< div class = "line" > < a name = "l01183" > < / a > < span class = "lineno" > 1183< / span >   Index *Cloner::clone_Index (< span class = "keyword" > const< / span > Index *index)< / div >
< div class = "line" > < a name = "l01184" > < / a > < span class = "lineno" > 1184< / span >   {< / div >
< div class = "line" > < a name = "l01185" > < / a > < span class = "lineno" > 1185< / span >   TRYCLONE (IndexPQ, index)< / div >
< div class = "line" > < a name = "l01186" > < / a > < span class = "lineno" > 1186< / span >   TRYCLONE (IndexLSH, index)< / div >
< div class = "line" > < a name = "l01187" > < / a > < span class = "lineno" > 1187< / span >   TRYCLONE (IndexFlatL2, index)< / div >
< div class = "line" > < a name = "l01188" > < / a > < span class = "lineno" > 1188< / span >   TRYCLONE (IndexFlatIP, index)< / div >
< div class = "line" > < a name = "l01189" > < / a > < span class = "lineno" > 1189< / span >   TRYCLONE (IndexFlat, index)< / div >
< div class = "line" > < a name = "l01190" > < / a > < span class = "lineno" > 1190< / span >   TRYCLONE (IndexScalarQuantizer, index)< / div >
< div class = "line" > < a name = "l01191" > < / a > < span class = "lineno" > 1191< / span >   TRYCLONE (MultiIndexQuantizer, index)< / div >
< div class = "line" > < a name = "l01192" > < / a > < span class = "lineno" > 1192< / span >   if (const IndexIVF * ivf = dynamic_cast< const IndexIVF*> (index)) {< / div >
< div class = "line" > < a name = "l01193" > < / a > < span class = "lineno" > 1193< / span >   IndexIVF *res = clone_IndexIVF (ivf);< / div >
< div class = "line" > < a name = "l01194" > < / a > < span class = "lineno" > 1194< / span >   < span class = "keywordflow" > if< / span > (ivf-> invlists == < span class = "keyword" > nullptr< / span > ) {< / div >
< div class = "line" > < a name = "l01195" > < / a > < span class = "lineno" > 1195< / span >   res-> invlists = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01196" > < / a > < span class = "lineno" > 1196< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > auto< / span > *ails = dynamic_cast< const ArrayInvertedLists*> < / div >
< div class = "line" > < a name = "l01197" > < / a > < span class = "lineno" > 1197< / span >   (ivf-> invlists)) {< / div >
< div class = "line" > < a name = "l01198" > < / a > < span class = "lineno" > 1198< / span >   res-> invlists = < span class = "keyword" > new< / span > ArrayInvertedLists(*ails);< / div >
< div class = "line" > < a name = "l01199" > < / a > < span class = "lineno" > 1199< / span >   res-> own_invlists = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01200" > < / a > < span class = "lineno" > 1200< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01201" > < / a > < span class = "lineno" > 1201< / span >   FAISS_THROW_MSG( < span class = "stringliteral" > " clone not supported for this type of inverted lists" < / span > );< / div >
< div class = "line" > < a name = "l01202" > < / a > < span class = "lineno" > 1202< / span >   }< / div >
< div class = "line" > < a name = "l01203" > < / a > < span class = "lineno" > 1203< / span >   res-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01204" > < / a > < span class = "lineno" > 1204< / span >   res-> quantizer = clone_Index (ivf-> quantizer);< / div >
< div class = "line" > < a name = "l01205" > < / a > < span class = "lineno" > 1205< / span >   < span class = "keywordflow" > return< / span > res;< / div >
< div class = "line" > < a name = "l01206" > < / a > < span class = "lineno" > 1206< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexPreTransform * ipt =< / div >
< div class = "line" > < a name = "l01207" > < / a > < span class = "lineno" > 1207< / span >   dynamic_cast< const IndexPreTransform*> (index)) {< / div >
< div class = "line" > < a name = "l01208" > < / a > < span class = "lineno" > 1208< / span >   IndexPreTransform *res = < span class = "keyword" > new< / span > IndexPreTransform ();< / div >
< div class = "line" > < a name = "l01209" > < / a > < span class = "lineno" > 1209< / span >   res-> d = ipt-> d;< / div >
< div class = "line" > < a name = "l01210" > < / a > < span class = "lineno" > 1210< / span >   res-> index = clone_Index (ipt-> index);< / div >
< div class = "line" > < a name = "l01211" > < / a > < span class = "lineno" > 1211< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > int< / span > i = 0; i < ipt-> chain.size(); i++)< / div >
< div class = "line" > < a name = "l01212" > < / a > < span class = "lineno" > 1212< / span >   res-> chain.push_back (clone_VectorTransform (ipt-> chain[i]));< / div >
< div class = "line" > < a name = "l01213" > < / a > < span class = "lineno" > 1213< / span >   res-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01214" > < / a > < span class = "lineno" > 1214< / span >   < span class = "keywordflow" > return< / span > res;< / div >
< div class = "line" > < a name = "l01215" > < / a > < span class = "lineno" > 1215< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexIDMap *idmap =< / div >
< div class = "line" > < a name = "l01216" > < / a > < span class = "lineno" > 1216< / span >   dynamic_cast< const IndexIDMap*> (index)) {< / div >
< div class = "line" > < a name = "l01217" > < / a > < span class = "lineno" > 1217< / span >   IndexIDMap *res = < span class = "keyword" > new< / span > IndexIDMap (*idmap);< / div >
< div class = "line" > < a name = "l01218" > < / a > < span class = "lineno" > 1218< / span >   res-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01219" > < / a > < span class = "lineno" > 1219< / span >   res-> index = clone_Index (idmap-> index);< / div >
< div class = "line" > < a name = "l01220" > < / a > < span class = "lineno" > 1220< / span >   < span class = "keywordflow" > return< / span > res;< / div >
< div class = "line" > < a name = "l01221" > < / a > < span class = "lineno" > 1221< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01222" > < / a > < span class = "lineno" > 1222< / span >   FAISS_THROW_MSG( < span class = "stringliteral" > " clone not supported for this type of Index" < / span > );< / div >
< div class = "line" > < a name = "l01223" > < / a > < span class = "lineno" > 1223< / span >   }< / div >
< div class = "line" > < a name = "l01224" > < / a > < span class = "lineno" > 1224< / span >   < span class = "keywordflow" > return< / span > < span class = "keyword" > nullptr< / span > ;< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l01225" > < / a > < span class = "lineno" > 1225< / span >   }< / div >
< div class = "line" > < a name = "l01226" > < / a > < span class = "lineno" > 1226< / span >   < / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l01227" > < / a > < span class = "lineno" > 1227< / span >   < / div >
< div class = "line" > < a name = "l01228" > < / a > < span class = "lineno" > 1228< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > write_index_binary_header (< span class = "keyword" > const< / span > IndexBinary *idx, IOWriter *f) {< / div >
< div class = "line" > < a name = "l01229" > < / a > < span class = "lineno" > 1229< / span >   WRITE1 (idx-> d);< / div >
< div class = "line" > < a name = "l01230" > < / a > < span class = "lineno" > 1230< / span >   WRITE1 (idx-> code_size);< / div >
< div class = "line" > < a name = "l01231" > < / a > < span class = "lineno" > 1231< / span >   WRITE1 (idx-> ntotal);< / div >
< div class = "line" > < a name = "l01232" > < / a > < span class = "lineno" > 1232< / span >   WRITE1 (idx-> is_trained);< / div >
< div class = "line" > < a name = "l01233" > < / a > < span class = "lineno" > 1233< / span >   WRITE1 (idx-> metric_type);< / div >
< div class = "line" > < a name = "l01234" > < / a > < span class = "lineno" > 1234< / span >   }< / div >
< div class = "line" > < a name = "l01235" > < / a > < span class = "lineno" > 1235< / span >   < / div >
< div class = "line" > < a name = "l01236" > < / a > < span class = "lineno" > 1236< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > write_binary_ivf_header (< span class = "keyword" > const< / span > IndexBinaryIVF *ivf, IOWriter *f) {< / div >
< div class = "line" > < a name = "l01237" > < / a > < span class = "lineno" > 1237< / span >   write_index_binary_header (ivf, f);< / div >
< div class = "line" > < a name = "l01238" > < / a > < span class = "lineno" > 1238< / span >   WRITE1 (ivf-> nlist);< / div >
< div class = "line" > < a name = "l01239" > < / a > < span class = "lineno" > 1239< / span >   WRITE1 (ivf-> nprobe);< / div >
< div class = "line" > < a name = "l01240" > < / a > < span class = "lineno" > 1240< / span >   write_index_binary (ivf-> quantizer, f);< / div >
< div class = "line" > < a name = "l01241" > < / a > < span class = "lineno" > 1241< / span >   WRITE1 (ivf-> maintain_direct_map);< / div >
< div class = "line" > < a name = "l01242" > < / a > < span class = "lineno" > 1242< / span >   WRITEVECTOR (ivf-> direct_map);< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l01243" > < / a > < span class = "lineno" > 1243< / span >   }< / div >
< div class = "line" > < a name = "l01244" > < / a > < span class = "lineno" > 1244< / span >   < / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l01245" > < / a > < span class = "lineno" > 1245< / span >   < span class = "keywordtype" > void< / span > write_index_binary (< span class = "keyword" > const< / span > IndexBinary *idx, IOWriter *f) {< / div >
< div class = "line" > < a name = "l01246" > < / a > < span class = "lineno" > 1246< / span >   < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexBinaryFlat *idxf =< / div >
< div class = "line" > < a name = "l01247" > < / a > < span class = "lineno" > 1247< / span >   dynamic_cast< const IndexBinaryFlat *> (idx)) {< / div >
< div class = "line" > < a name = "l01248" > < / a > < span class = "lineno" > 1248< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IBxF" < / span > );< / div >
< div class = "line" > < a name = "l01249" > < / a > < span class = "lineno" > 1249< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l01250" > < / a > < span class = "lineno" > 1250< / span >   write_index_binary_header (idx, f);< / div >
< div class = "line" > < a name = "l01251" > < / a > < span class = "lineno" > 1251< / span >   WRITEVECTOR (idxf-> xb);< / div >
< div class = "line" > < a name = "l01252" > < / a > < span class = "lineno" > 1252< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexBinaryIVF *ivf =< / div >
< div class = "line" > < a name = "l01253" > < / a > < span class = "lineno" > 1253< / span >   dynamic_cast< const IndexBinaryIVF *> (idx)) {< / div >
< div class = "line" > < a name = "l01254" > < / a > < span class = "lineno" > 1254< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IBwF" < / span > );< / div >
< div class = "line" > < a name = "l01255" > < / a > < span class = "lineno" > 1255< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l01256" > < / a > < span class = "lineno" > 1256< / span >   write_binary_ivf_header (ivf, f);< / div >
< div class = "line" > < a name = "l01257" > < / a > < span class = "lineno" > 1257< / span >   write_InvertedLists (ivf-> invlists, f);< / div >
< div class = "line" > < a name = "l01258" > < / a > < span class = "lineno" > 1258< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexBinaryFromFloat * idxff =< / div >
< div class = "line" > < a name = "l01259" > < / a > < span class = "lineno" > 1259< / span >   dynamic_cast< const IndexBinaryFromFloat *> (idx)) {< / div >
< div class = "line" > < a name = "l01260" > < / a > < span class = "lineno" > 1260< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IBFf" < / span > );< / div >
< div class = "line" > < a name = "l01261" > < / a > < span class = "lineno" > 1261< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l01262" > < / a > < span class = "lineno" > 1262< / span >   write_index_binary_header (idxff, f);< / div >
< div class = "line" > < a name = "l01263" > < / a > < span class = "lineno" > 1263< / span >   write_index (idxff-> index, f);< / div >
< div class = "line" > < a name = "l01264" > < / a > < span class = "lineno" > 1264< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (< span class = "keyword" > const< / span > IndexBinaryHNSW *idxhnsw =< / div >
< div class = "line" > < a name = "l01265" > < / a > < span class = "lineno" > 1265< / span >   dynamic_cast< const IndexBinaryHNSW *> (idx)) {< / div >
< div class = "line" > < a name = "l01266" > < / a > < span class = "lineno" > 1266< / span >   uint32_t h = fourcc (< span class = "stringliteral" > " IBHf" < / span > );< / div >
< div class = "line" > < a name = "l01267" > < / a > < span class = "lineno" > 1267< / span >   WRITE1 (h);< / div >
< div class = "line" > < a name = "l01268" > < / a > < span class = "lineno" > 1268< / span >   write_index_binary_header (idxhnsw, f);< / div >
< div class = "line" > < a name = "l01269" > < / a > < span class = "lineno" > 1269< / span >   write_HNSW (& idxhnsw-> hnsw, f);< / div >
< div class = "line" > < a name = "l01270" > < / a > < span class = "lineno" > 1270< / span >   write_index_binary (idxhnsw-> storage, f);< / div >
< div class = "line" > < a name = "l01271" > < / a > < span class = "lineno" > 1271< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01272" > < / a > < span class = "lineno" > 1272< / span >   FAISS_THROW_MSG (< span class = "stringliteral" > " don' t know how to serialize this type of index" < / span > );< / div >
< div class = "line" > < a name = "l01273" > < / a > < span class = "lineno" > 1273< / span >   }< / div >
< div class = "line" > < a name = "l01274" > < / a > < span class = "lineno" > 1274< / span >   }< / div >
< div class = "line" > < a name = "l01275" > < / a > < span class = "lineno" > 1275< / span >   < / div >
< div class = "line" > < a name = "l01276" > < / a > < span class = "lineno" > 1276< / span >   < span class = "keywordtype" > void< / span > write_index_binary (< span class = "keyword" > const< / span > IndexBinary *idx, FILE *f) {< / div >
< div class = "line" > < a name = "l01277" > < / a > < span class = "lineno" > 1277< / span >   FileIOWriter writer(f);< / div >
< div class = "line" > < a name = "l01278" > < / a > < span class = "lineno" > 1278< / span >   write_index_binary(idx, & writer);< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l01279" > < / a > < span class = "lineno" > 1279< / span >   }< / div >
< div class = "line" > < a name = "l01280" > < / a > < span class = "lineno" > 1280< / span >   < / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l01281" > < / a > < span class = "lineno" > 1281< / span >   < span class = "keywordtype" > void< / span > write_index_binary (< span class = "keyword" > const< / span > IndexBinary *idx, < span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname) {< / div >
< div class = "line" > < a name = "l01282" > < / a > < span class = "lineno" > 1282< / span >   FileIOWriter writer(fname);< / div >
< div class = "line" > < a name = "l01283" > < / a > < span class = "lineno" > 1283< / span >   write_index_binary (idx, & writer);< / div >
2018-12-20 00:48:35 +08:00
< div class = "line" > < a name = "l01284" > < / a > < span class = "lineno" > 1284< / span >   }< / div >
< div class = "line" > < a name = "l01285" > < / a > < span class = "lineno" > 1285< / span >   < / div >
2019-05-28 22:17:22 +08:00
< div class = "line" > < a name = "l01286" > < / a > < span class = "lineno" > 1286< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_index_binary_header (IndexBinary *idx, IOReader *f) {< / div >
< div class = "line" > < a name = "l01287" > < / a > < span class = "lineno" > 1287< / span >   READ1 (idx-> d);< / div >
< div class = "line" > < a name = "l01288" > < / a > < span class = "lineno" > 1288< / span >   READ1 (idx-> code_size);< / div >
< div class = "line" > < a name = "l01289" > < / a > < span class = "lineno" > 1289< / span >   READ1 (idx-> ntotal);< / div >
< div class = "line" > < a name = "l01290" > < / a > < span class = "lineno" > 1290< / span >   READ1 (idx-> is_trained);< / div >
< div class = "line" > < a name = "l01291" > < / a > < span class = "lineno" > 1291< / span >   READ1 (idx-> metric_type);< / div >
< div class = "line" > < a name = "l01292" > < / a > < span class = "lineno" > 1292< / span >   idx-> verbose = < span class = "keyword" > false< / span > ;< / div >
< div class = "line" > < a name = "l01293" > < / a > < span class = "lineno" > 1293< / span >   }< / div >
< div class = "line" > < a name = "l01294" > < / a > < span class = "lineno" > 1294< / span >   < / div >
< div class = "line" > < a name = "l01295" > < / a > < span class = "lineno" > 1295< / span >   < span class = "keyword" > static< / span > < span class = "keywordtype" > void< / span > read_binary_ivf_header (< / div >
< div class = "line" > < a name = "l01296" > < / a > < span class = "lineno" > 1296< / span >   IndexBinaryIVF *ivf, IOReader *f,< / div >
< div class = "line" > < a name = "l01297" > < / a > < span class = "lineno" > 1297< / span >   std::vector< std::vector< Index::idx_t> > *ids = < span class = "keyword" > nullptr< / span > )< / div >
< div class = "line" > < a name = "l01298" > < / a > < span class = "lineno" > 1298< / span >   {< / div >
< div class = "line" > < a name = "l01299" > < / a > < span class = "lineno" > 1299< / span >   read_index_binary_header (ivf, f);< / div >
< div class = "line" > < a name = "l01300" > < / a > < span class = "lineno" > 1300< / span >   READ1 (ivf-> nlist);< / div >
< div class = "line" > < a name = "l01301" > < / a > < span class = "lineno" > 1301< / span >   READ1 (ivf-> nprobe);< / div >
< div class = "line" > < a name = "l01302" > < / a > < span class = "lineno" > 1302< / span >   ivf-> quantizer = read_index_binary (f);< / div >
< div class = "line" > < a name = "l01303" > < / a > < span class = "lineno" > 1303< / span >   ivf-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01304" > < / a > < span class = "lineno" > 1304< / span >   < span class = "keywordflow" > if< / span > (ids) { < span class = "comment" > // used in legacy " Iv" formats< / span > < / div >
< div class = "line" > < a name = "l01305" > < / a > < span class = "lineno" > 1305< / span >   ids-> resize (ivf-> nlist);< / div >
< div class = "line" > < a name = "l01306" > < / a > < span class = "lineno" > 1306< / span >   < span class = "keywordflow" > for< / span > (< span class = "keywordtype" > size_t< / span > i = 0; i < ivf-> nlist; i++)< / div >
< div class = "line" > < a name = "l01307" > < / a > < span class = "lineno" > 1307< / span >   READVECTOR ((*ids)[i]);< / div >
< div class = "line" > < a name = "l01308" > < / a > < span class = "lineno" > 1308< / span >   }< / div >
< div class = "line" > < a name = "l01309" > < / a > < span class = "lineno" > 1309< / span >   READ1 (ivf-> maintain_direct_map);< / div >
< div class = "line" > < a name = "l01310" > < / a > < span class = "lineno" > 1310< / span >   READVECTOR (ivf-> direct_map);< / div >
< div class = "line" > < a name = "l01311" > < / a > < span class = "lineno" > 1311< / span >   }< / div >
< div class = "line" > < a name = "l01312" > < / a > < span class = "lineno" > 1312< / span >   < / div >
< div class = "line" > < a name = "l01313" > < / a > < span class = "lineno" > 1313< / span >   IndexBinary *read_index_binary (IOReader *f, < span class = "keywordtype" > int< / span > io_flags) {< / div >
< div class = "line" > < a name = "l01314" > < / a > < span class = "lineno" > 1314< / span >   IndexBinary * idx = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01315" > < / a > < span class = "lineno" > 1315< / span >   uint32_t h;< / div >
< div class = "line" > < a name = "l01316" > < / a > < span class = "lineno" > 1316< / span >   READ1 (h);< / div >
< div class = "line" > < a name = "l01317" > < / a > < span class = "lineno" > 1317< / span >   < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IBxF" < / span > )) {< / div >
< div class = "line" > < a name = "l01318" > < / a > < span class = "lineno" > 1318< / span >   IndexBinaryFlat *idxf = < span class = "keyword" > new< / span > IndexBinaryFlat ();< / div >
< div class = "line" > < a name = "l01319" > < / a > < span class = "lineno" > 1319< / span >   read_index_binary_header (idxf, f);< / div >
< div class = "line" > < a name = "l01320" > < / a > < span class = "lineno" > 1320< / span >   READVECTOR (idxf-> xb);< / div >
< div class = "line" > < a name = "l01321" > < / a > < span class = "lineno" > 1321< / span >   FAISS_THROW_IF_NOT (idxf-> xb.size() == idxf-> ntotal * idxf-> code_size);< / div >
< div class = "line" > < a name = "l01322" > < / a > < span class = "lineno" > 1322< / span >   < span class = "comment" > // leak!< / span > < / div >
< div class = "line" > < a name = "l01323" > < / a > < span class = "lineno" > 1323< / span >   idx = idxf;< / div >
< div class = "line" > < a name = "l01324" > < / a > < span class = "lineno" > 1324< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IBwF" < / span > )) {< / div >
< div class = "line" > < a name = "l01325" > < / a > < span class = "lineno" > 1325< / span >   IndexBinaryIVF *ivf = < span class = "keyword" > new< / span > IndexBinaryIVF ();< / div >
< div class = "line" > < a name = "l01326" > < / a > < span class = "lineno" > 1326< / span >   read_binary_ivf_header (ivf, f);< / div >
< div class = "line" > < a name = "l01327" > < / a > < span class = "lineno" > 1327< / span >   read_InvertedLists (ivf, f, io_flags);< / div >
< div class = "line" > < a name = "l01328" > < / a > < span class = "lineno" > 1328< / span >   idx = ivf;< / div >
< div class = "line" > < a name = "l01329" > < / a > < span class = "lineno" > 1329< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IBFf" < / span > )) {< / div >
< div class = "line" > < a name = "l01330" > < / a > < span class = "lineno" > 1330< / span >   IndexBinaryFromFloat *idxff = < span class = "keyword" > new< / span > IndexBinaryFromFloat ();< / div >
< div class = "line" > < a name = "l01331" > < / a > < span class = "lineno" > 1331< / span >   read_index_binary_header (idxff, f);< / div >
< div class = "line" > < a name = "l01332" > < / a > < span class = "lineno" > 1332< / span >   idxff-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01333" > < / a > < span class = "lineno" > 1333< / span >   idxff-> index = read_index (f, io_flags);< / div >
< div class = "line" > < a name = "l01334" > < / a > < span class = "lineno" > 1334< / span >   idx = idxff;< / div >
< div class = "line" > < a name = "l01335" > < / a > < span class = "lineno" > 1335< / span >   } < span class = "keywordflow" > else< / span > < span class = "keywordflow" > if< / span > (h == fourcc (< span class = "stringliteral" > " IBHf" < / span > )) {< / div >
< div class = "line" > < a name = "l01336" > < / a > < span class = "lineno" > 1336< / span >   IndexBinaryHNSW *idxhnsw = < span class = "keyword" > new< / span > IndexBinaryHNSW ();< / div >
< div class = "line" > < a name = "l01337" > < / a > < span class = "lineno" > 1337< / span >   read_index_binary_header (idxhnsw, f);< / div >
< div class = "line" > < a name = "l01338" > < / a > < span class = "lineno" > 1338< / span >   read_HNSW (& idxhnsw-> hnsw, f);< / div >
< div class = "line" > < a name = "l01339" > < / a > < span class = "lineno" > 1339< / span >   idxhnsw-> storage = read_index_binary (f, io_flags);< / div >
< div class = "line" > < a name = "l01340" > < / a > < span class = "lineno" > 1340< / span >   idxhnsw-> own_fields = < span class = "keyword" > true< / span > ;< / div >
< div class = "line" > < a name = "l01341" > < / a > < span class = "lineno" > 1341< / span >   idx = idxhnsw;< / div >
< div class = "line" > < a name = "l01342" > < / a > < span class = "lineno" > 1342< / span >   } < span class = "keywordflow" > else< / span > {< / div >
< div class = "line" > < a name = "l01343" > < / a > < span class = "lineno" > 1343< / span >   FAISS_THROW_FMT(< span class = "stringliteral" > " Index type 0x%08x not supported\n" < / span > , h);< / div >
< div class = "line" > < a name = "l01344" > < / a > < span class = "lineno" > 1344< / span >   idx = < span class = "keyword" > nullptr< / span > ;< / div >
< div class = "line" > < a name = "l01345" > < / a > < span class = "lineno" > 1345< / span >   }< / div >
< div class = "line" > < a name = "l01346" > < / a > < span class = "lineno" > 1346< / span >   < span class = "keywordflow" > return< / span > idx;< / div >
< div class = "line" > < a name = "l01347" > < / a > < span class = "lineno" > 1347< / span >   }< / div >
< div class = "line" > < a name = "l01348" > < / a > < span class = "lineno" > 1348< / span >   < / div >
< div class = "line" > < a name = "l01349" > < / a > < span class = "lineno" > 1349< / span >   IndexBinary *read_index_binary (FILE * f, < span class = "keywordtype" > int< / span > io_flags) {< / div >
< div class = "line" > < a name = "l01350" > < / a > < span class = "lineno" > 1350< / span >   FileIOReader reader(f);< / div >
< div class = "line" > < a name = "l01351" > < / a > < span class = "lineno" > 1351< / span >   < span class = "keywordflow" > return< / span > read_index_binary(& reader, io_flags);< / div >
< div class = "line" > < a name = "l01352" > < / a > < span class = "lineno" > 1352< / span >   }< / div >
< div class = "line" > < a name = "l01353" > < / a > < span class = "lineno" > 1353< / span >   < / div >
< div class = "line" > < a name = "l01354" > < / a > < span class = "lineno" > 1354< / span >   IndexBinary *read_index_binary (< span class = "keyword" > const< / span > < span class = "keywordtype" > char< / span > *fname, < span class = "keywordtype" > int< / span > io_flags) {< / div >
< div class = "line" > < a name = "l01355" > < / a > < span class = "lineno" > 1355< / span >   FileIOReader reader(fname);< / div >
< div class = "line" > < a name = "l01356" > < / a > < span class = "lineno" > 1356< / span >   IndexBinary *idx = read_index_binary (& reader, io_flags);< / div >
< div class = "line" > < a name = "l01357" > < / a > < span class = "lineno" > 1357< / span >   < span class = "keywordflow" > return< / span > idx;< / div >
< div class = "line" > < a name = "l01358" > < / a > < span class = "lineno" > 1358< / span >   }< / div >
< div class = "line" > < a name = "l01359" > < / a > < span class = "lineno" > 1359< / span >   < / div >
< div class = "line" > < a name = "l01360" > < / a > < span class = "lineno" > 1360< / span >   < / div >
< div class = "line" > < a name = "l01361" > < / a > < span class = "lineno" > 1361< / span >   } < span class = "comment" > // namespace faiss< / span > < / div >
2018-12-20 00:48:35 +08:00
< div class = "ttc" id = "structfaiss_1_1ScopeFileCloser_html" > < div class = "ttname" > < a href = "structfaiss_1_1ScopeFileCloser.html" > faiss::ScopeFileCloser< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "index__io_8cpp_source.html#l00115" > index_io.cpp:115< / a > < / div > < / div >
2019-05-28 22:17:22 +08:00
< div class = "ttc" id = "structfaiss_1_1Index_html_ad3f0d3071f987baabbdd3da4500c87ea" > < div class = "ttname" > < a href = "structfaiss_1_1Index.html#ad3f0d3071f987baabbdd3da4500c87ea" > faiss::Index::idx_t< / a > < / div > < div class = "ttdeci" > long idx_t< / div > < div class = "ttdoc" > all indices are this type < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "Index_8h_source.html#l00062" > Index.h:62< / a > < / div > < / div >
< div class = "ttc" id = "structfaiss_1_1IOReader_html" > < div class = "ttname" > < a href = "structfaiss_1_1IOReader.html" > faiss::IOReader< / a > < / div > < div class = "ttdef" > < b > Definition:< / b > < a href = "AuxIndexStructures_8h_source.html#l00183" > AuxIndexStructures.h:183< / a > < / div > < / div >
2017-02-23 06:26:44 +08:00
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