| /** @file |
| |
| A brief file description |
| |
| @section license License |
| |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| */ |
| |
| //------------------------------------------------------------------------- |
| // Read-Write Lock -- Code from Stevens' Unix Network Programming - |
| // Interprocess Communications. This is the simple implementation and |
| // will not work if used in conjunction with ink_thread_cancel(). |
| //------------------------------------------------------------------------- |
| |
| #pragma once |
| |
| #include "tscore/ink_error.h" |
| #include <pthread.h> |
| |
| typedef pthread_rwlock_t ink_rwlock; |
| |
| void ink_rwlock_init(ink_rwlock *rw); |
| void ink_rwlock_destroy(ink_rwlock *rw); |
| |
| static inline void |
| ink_rwlock_rdlock(ink_rwlock *rw) |
| { |
| int error = pthread_rwlock_rdlock(rw); |
| if (unlikely(error != 0)) { |
| ink_abort("pthread_rwlock_rdlock(%p) failed: %s (%d)", rw, strerror(error), error); |
| } |
| } |
| |
| static inline void |
| ink_rwlock_wrlock(ink_rwlock *rw) |
| { |
| int error = pthread_rwlock_wrlock(rw); |
| if (unlikely(error != 0)) { |
| ink_abort("pthread_rwlock_wrlock(%p) failed: %s (%d)", rw, strerror(error), error); |
| } |
| } |
| |
| static inline void |
| ink_rwlock_unlock(ink_rwlock *rw) |
| { |
| int error = pthread_rwlock_unlock(rw); |
| if (unlikely(error != 0)) { |
| ink_abort("pthread_rwlock_unlock(%p) failed: %s (%d)", rw, strerror(error), error); |
| } |
| } |