1 //===-- Implementation for Rwlock's destroy 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/pthread/pthread_rwlock_destroy.h" 10 11 #include "src/__support/common.h" 12 #include "src/__support/macros/config.h" 13 #include "src/__support/threads/linux/rwlock.h" 14 15 #include <pthread.h> 16 17 namespace LIBC_NAMESPACE_DECL { 18 19 LLVM_LIBC_FUNCTION(int, pthread_rwlock_destroy, (pthread_rwlock_t * rwlock)) { 20 if (!rwlock) 21 return EINVAL; 22 auto *rw = reinterpret_cast<RwLock *>(rwlock); 23 RwLock::LockResult res = rw->check_for_destroy(); 24 25 // this is currently no-op, but we still call the destructor as a symmetry 26 // to its constructor call; 27 if (res == RwLock::LockResult::Success) 28 rw->~RwLock(); 29 30 return static_cast<int>(res); 31 } 32 33 } // namespace LIBC_NAMESPACE_DECL 34