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 "include/threads.h" // For mtx_t definition.
11 #include "src/__support/common.h"
12 #include "src/__support/threads/mutex.h"
13 
14 namespace __llvm_libc {
15 
16 static_assert(sizeof(Mutex) <= sizeof(mtx_t),
17               "The public mtx_t type cannot accommodate the internal mutex "
18               "type.");
19 
20 LLVM_LIBC_FUNCTION(int, mtx_init, (mtx_t * m, int type)) {
21   auto err = Mutex::init(reinterpret_cast<Mutex *>(m), type & mtx_timed,
22                          type & mtx_recursive, 0);
23   return err == MutexError::NONE ? thrd_success : thrd_error;
24 }
25 
26 } // namespace __llvm_libc
27