72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
/*
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* Copyright 2003,2004 The Apache Software Foundation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _LOG4CXX_HELPERS_CONDITION_H
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#define _LOG4CXX_HELPERS_CONDITION_H
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#include <log4cxx/config.h>
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#include <log4cxx/helpers/exception.h>
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#include <log4cxx/helpers/mutex.h>
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#include <log4cxx/helpers/semaphore.h>
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#ifdef HAVE_PTHREAD
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#include <pthread.h>
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#endif
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namespace log4cxx
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{
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namespace helpers
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{
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class LOG4CXX_EXPORT ConditionException : public Exception
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{
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};
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class LOG4CXX_EXPORT Condition
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{
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public:
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Condition();
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~Condition();
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void broadcast();
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void signal();
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void wait(Mutex& mutex);
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void wait(Mutex& mutex, long timeOut);
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protected:
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#ifdef HAVE_PTHREAD
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pthread_cond_t condition;
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#elif defined(HAVE_MS_THREAD)
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/// Number of waiting threads.
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long volatile waiters;
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/// Queue up threads waiting for the condition to become signaled.
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Semaphore sema;
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/**
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* An auto reset event used by the broadcast/signal thread to wait
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* for the waiting thread(s) to wake up and get a chance at the
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* semaphore.
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*/
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void * waitersDone;
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/// Keeps track of whether we were broadcasting or just signaling.
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bool wasBroadCast;
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#endif
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};
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} // namespace helpers
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};// namespace log4cxx
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#endif //_LOG4CXX_HELPERS_CONDITION_H
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