26 lines · cpp
1//===-- Linux implementation of the mtx_unlock function -------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/threads/mtx_unlock.h"10#include "src/__support/common.h"11#include "src/__support/macros/config.h"12#include "src/__support/threads/mutex.h"13 14#include <threads.h> // For mtx_t definition.15 16namespace LIBC_NAMESPACE_DECL {17 18// The implementation currently handles only plain mutexes.19LLVM_LIBC_FUNCTION(int, mtx_unlock, (mtx_t * mutex)) {20 auto *m = reinterpret_cast<Mutex *>(mutex);21 auto err = m->unlock();22 return err == MutexError::NONE ? thrd_success : thrd_error;23}24 25} // namespace LIBC_NAMESPACE_DECL26