1 //===-- Linux implementation of the cnd_wait 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/cnd_wait.h" 10 #include "src/__support/common.h" 11 #include "src/__support/threads/CndVar.h" 12 #include "src/__support/threads/mutex.h" 13 14 #include <threads.h> // cnd_t, mtx_t, thrd_error, thrd_success 15 16 namespace LIBC_NAMESPACE { 17 18 static_assert(sizeof(CndVar) == sizeof(cnd_t)); 19 20 LLVM_LIBC_FUNCTION(int, cnd_wait, (cnd_t * cond, mtx_t *mtx)) { 21 CndVar *cndvar = reinterpret_cast<CndVar *>(cond); 22 Mutex *mutex = reinterpret_cast<Mutex *>(mtx); 23 return cndvar->wait(mutex) ? thrd_error : thrd_success; 24 } 25 26 } // namespace LIBC_NAMESPACE 27