1 //===-- Linux implementation of the pthread_mutex_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 "pthread_mutex_lock.h" 10 11 #include "src/__support/common.h" 12 #include "src/__support/threads/mutex.h" 13 14 #include <pthread.h> 15 16 namespace LIBC_NAMESPACE { 17 18 // The implementation currently handles only plain mutexes. 19 LLVM_LIBC_FUNCTION(int, pthread_mutex_lock, (pthread_mutex_t * mutex)) { 20 reinterpret_cast<Mutex *>(mutex)->lock(); 21 // TODO: When the Mutex class supports all the possible error conditions 22 // return the appropriate error value here. 23 return 0; 24 } 25 26 } // namespace LIBC_NAMESPACE 27