codon/stdlib/threading.codon

# Copyright (C) 2022 Exaloop Inc. <https://exaloop.io>

@tuple
class Lock:
    p: cobj

    def __new__() -> Lock:
        return (_C.seq_lock_new(),)

    def acquire(self, block: bool = True, timeout: float = -1.0) -> bool:
        if timeout >= 0.0 and not block:
            raise ValueError("can't specify a timeout for a non-blocking call")
        return _C.seq_lock_acquire(self.p, block, timeout)

    def release(self):
        _C.seq_lock_release(self.p)

    def __enter__(self):
        self.acquire()

    def __exit__(self):
        self.release()

@tuple
class RLock:
    p: cobj

    def __new__() -> RLock:
        return (_C.seq_rlock_new(),)

    def acquire(self, block: bool = True, timeout: float = -1.0) -> bool:
        if timeout >= 0.0 and not block:
            raise ValueError("can't specify a timeout for a non-blocking call")
        return _C.seq_rlock_acquire(self.p, block, timeout)

    def release(self):
        _C.seq_rlock_release(self.p)

    def __enter__(self):
        self.acquire()

    def __exit__(self):
        self.release()

def active_count() -> int:
    from openmp import get_num_threads
    return get_num_threads()

def get_native_id() -> int:
    from openmp import get_thread_num
    return get_thread_num()

def get_ident() -> int:
    return get_native_id() + 1