72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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// -*- c++ -*-
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#ifndef FAISS_EXCEPTION_INCLUDED
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#define FAISS_EXCEPTION_INCLUDED
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#include <exception>
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#include <string>
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#include <vector>
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#include <utility>
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namespace faiss {
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/// Base class for Faiss exceptions
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class FaissException : public std::exception {
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public:
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explicit FaissException(const std::string& msg);
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FaissException(const std::string& msg,
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const char* funcName,
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const char* file,
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int line);
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/// from std::exception
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const char* what() const noexcept override;
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std::string msg;
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};
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/// Handle multiple exceptions from worker threads, throwing an appropriate
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/// exception that aggregates the information
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/// The pair int is the thread that generated the exception
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void
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handleExceptions(std::vector<std::pair<int, std::exception_ptr>>& exceptions);
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/** bare-bones unique_ptr
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* this one deletes with delete [] */
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template<class T>
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struct ScopeDeleter {
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const T * ptr;
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explicit ScopeDeleter (const T* ptr = nullptr): ptr (ptr) {}
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void release () {ptr = nullptr; }
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void set (const T * ptr_in) { ptr = ptr_in; }
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void swap (ScopeDeleter<T> &other) {std::swap (ptr, other.ptr); }
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~ScopeDeleter () {
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delete [] ptr;
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}
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};
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/** same but deletes with the simple delete (least common case) */
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template<class T>
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struct ScopeDeleter1 {
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const T * ptr;
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explicit ScopeDeleter1 (const T* ptr = nullptr): ptr (ptr) {}
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void release () {ptr = nullptr; }
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void set (const T * ptr_in) { ptr = ptr_in; }
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void swap (ScopeDeleter1<T> &other) {std::swap (ptr, other.ptr); }
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~ScopeDeleter1 () {
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delete ptr;
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}
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};
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}
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#endif
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