89 lines
1.9 KiB
C++
89 lines
1.9 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_CRITICAL_SECTION_H
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#define _LOG4CXX_HELPERS_CRITICAL_SECTION_H
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#include <log4cxx/config.h>
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#ifdef HAVE_PTHREAD
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#include <pthread.h>
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#elif defined(HAVE_MS_THREAD)
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#include <windows.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 CriticalSection
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{
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public:
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CriticalSection();
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~CriticalSection();
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void lock();
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void unlock();
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unsigned long getOwningThread();
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#ifdef HAVE_PTHREAD
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pthread_mutex_t mutex;
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#elif defined(HAVE_MS_THREAD)
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CRITICAL_SECTION mutex;
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#endif
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unsigned long owningThread;
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};
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/** CriticalSection helper class to be used on call stack
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*/
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class WaitAccess
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{
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public:
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/// lock a critical section
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WaitAccess(CriticalSection& cs) : cs(cs)
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{
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cs.lock();
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locked = true;
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}
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/** automatically unlock the critical section
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if unlock has not be called.
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*/
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~WaitAccess()
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{
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if (locked)
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{
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unlock();
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}
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}
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/// unlock the critical section
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void unlock()
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{
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cs.unlock();
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locked = false;
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}
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private:
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/// the CriticalSection to be automatically unlocked
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CriticalSection& cs;
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/// verify the CriticalSection state
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bool locked;
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};
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} // namespace helpers
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}; // namespace log4cxx
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#endif //_LOG4CXX_HELPERS_CRITICAL_SECTION_H
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