1 //===-- Linux implementation of the mtx_init 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_init.h" 10 #include "src/__support/common.h" 11 #include "src/__support/threads/mutex.h" 12 13 #include <threads.h> // For mtx_t definition. 14 15 namespace LIBC_NAMESPACE { 16 17 static_assert(sizeof(Mutex) <= sizeof(mtx_t), 18 "The public mtx_t type cannot accommodate the internal mutex " 19 "type."); 20 21 LLVM_LIBC_FUNCTION(int, mtx_init, (mtx_t * m, int type)) { 22 auto err = Mutex::init(reinterpret_cast<Mutex *>(m), type & mtx_timed, 23 type & mtx_recursive, /* is_robust */ false, 24 /* is_pshared */ false); 25 return err == MutexError::NONE ? thrd_success : thrd_error; 26 } 27 28 } // namespace LIBC_NAMESPACE 29