| /* |
| * 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. |
| */ |
| |
| #ifndef _LOG4CXX_HELPERS_CONDITION_H |
| #define _LOG4CXX_HELPERS_CONDITION_H |
| |
| #include <log4cxx/log4cxx.h> |
| #include <log4cxx/helpers/mutex.h> |
| |
| extern "C" { |
| struct apr_thread_cond_t; |
| } |
| |
| namespace log4cxx |
| { |
| namespace helpers |
| { |
| class Pool; |
| |
| /** |
| * This class provides a means for one thread to suspend exception until |
| * notified by another thread to resume. This class should have |
| * similar semantics to java.util.concurrent.locks.Condition. |
| */ |
| class LOG4CXX_EXPORT Condition |
| { |
| public: |
| /** |
| * Create new instance. |
| * @param p pool on which condition will be created. Needs to be |
| * longer-lived than created instance. |
| */ |
| Condition(log4cxx::helpers::Pool& p); |
| /** |
| * Destructor. |
| */ |
| ~Condition(); |
| /** |
| * Signal all waiting threads. |
| */ |
| log4cxx_status_t signalAll(); |
| /** |
| * Await signaling of condition. |
| * @param lock lock associated with condition, calling thread must |
| * own lock. Lock will be released while waiting and reacquired |
| * before returning from wait. |
| * @throws InterruptedException if thread is interrupted. |
| */ |
| void await(Mutex& lock); |
| |
| private: |
| apr_thread_cond_t* condition; |
| Condition(const Condition&); |
| Condition& operator=(const Condition&); |
| }; |
| } // namespace helpers |
| } // namespace log4cxx |
| |
| #endif //_LOG4CXX_HELPERS_CONDITION_H |