1//===-- Linux implementation of the mtx_lock 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-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "src/threads/mtx_lock.h"
10#include "src/__support/common.h"
11#include "src/__support/threads/mutex.h"
12
13#include <threads.h> // For mtx_t definition.
14
15namespace LIBC_NAMESPACE {
16
17// The implementation currently handles only plain mutexes.
18LLVM_LIBC_FUNCTION(int, mtx_lock, (mtx_t * mutex)) {
19 auto *m = reinterpret_cast<Mutex *>(mutex);
20 auto err = m->lock();
21 return err == MutexError::NONE ? thrd_success : thrd_error;
22}
23
24} // namespace LIBC_NAMESPACE
25

source code of libc/src/threads/mtx_lock.cpp