compiler-rt/lib/gwp_asan/platform_specific/mutex_posix.cpp

   1 //===-- mutex_posix.cpp -----------------------------------------*- C++ -*-===//
   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 "gwp_asan/mutex.h"
  10
  11 #include <assert.h>
  12 #include <pthread.h>
  13
  14 namespace gwp_asan {
  15 void Mutex::lock() {
  16   int Status = pthread_mutex_lock(&Mu);
  17   assert(Status == 0);
  18   // Remove warning for non-debug builds.
  19   (void)Status;
  20 }
  21
  22 bool Mutex::tryLock() { return pthread_mutex_trylock(&Mu) == 0; }
  23
  24 void Mutex::unlock() {
  25   int Status = pthread_mutex_unlock(&Mu);
  26   assert(Status == 0);
  27   // Remove warning for non-debug builds.
  28   (void)Status;
  29 }
  30 } // namespace gwp_asan