1 //===-- Linux implementation of the thrd_join 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/thrd_join.h" 10 #include "src/__support/common.h" 11 #include "src/__support/macros/config.h" 12 #include "src/__support/threads/thread.h" 13 14 #include <threads.h> // For thrd_* type definitions. 15 16 namespace LIBC_NAMESPACE_DECL { 17 18 static_assert(sizeof(thrd_t) == sizeof(LIBC_NAMESPACE::Thread), 19 "Mismatch between thrd_t and internal Thread."); 20 21 LLVM_LIBC_FUNCTION(int, thrd_join, (thrd_t th, int *retval)) { 22 auto *thread = reinterpret_cast<Thread *>(&th); 23 int result = thread->join(retval); 24 return result == 0 ? thrd_success : thrd_error; 25 } 26 27 } // namespace LIBC_NAMESPACE_DECL 28