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//
// Copyright (c) ZeroC, Inc. All rights reserved.
//
#ifndef ICE_UTIL_MUTEX_PTR_LOCK_H
#define ICE_UTIL_MUTEX_PTR_LOCK_H
#include <IceUtil/Config.h>
#include <IceUtil/ThreadException.h>
namespace IceUtilInternal
{
template<class T>
class MutexPtrLock
{
public:
MutexPtrLock<T>(const T* mutex) :
_mutex(mutex),
_acquired(false)
{
if(_mutex)
{
_mutex->lock();
_acquired = true;
}
}
~MutexPtrLock<T>()
{
if(_mutex && _acquired)
{
_mutex->unlock();
}
}
void acquire() const
{
if(_mutex)
{
_mutex->lock();
_acquired = true;
}
}
void release() const
{
if(_mutex)
{
if(!_acquired)
{
throw IceUtil::ThreadLockedException(__FILE__, __LINE__);
}
_mutex->unlock();
_acquired = false;
}
}
bool acquired() const
{
return _acquired;
}
private:
// Not implemented; prevents accidental use.
//
MutexPtrLock<T>(const MutexPtrLock<T>&);
MutexPtrLock<T>& operator=(const MutexPtrLock<T>&);
const T* _mutex;
mutable bool _acquired;
};
} // End namespace IceUtilInternal
#endif
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