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//
// Mutex_WIN32.h
//
// Library: Foundation
// Package: Threading
// Module: Mutex
//
// Definition of the MutexImpl and FastMutexImpl classes for WIN32.
//
// Copyright (c) 2004-2008, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Foundation_Mutex_WIN32_INCLUDED
#define Foundation_Mutex_WIN32_INCLUDED
#include "Poco/Foundation.h"
#include "Poco/Exception.h"
#include "Poco/UnWindows.h"
namespace Poco {
class Foundation_API MutexImpl
{
protected:
MutexImpl();
~MutexImpl();
void lockImpl();
bool tryLockImpl();
bool tryLockImpl(long milliseconds);
void unlockImpl();
private:
CRITICAL_SECTION _cs;
};
typedef MutexImpl FastMutexImpl;
//
// inlines
//
inline void MutexImpl::lockImpl()
{
try
{
EnterCriticalSection(&_cs);
}
catch (...)
{
throw SystemException("cannot lock mutex");
}
}
inline bool MutexImpl::tryLockImpl()
{
try
{
return TryEnterCriticalSection(&_cs) != 0;
}
catch (...)
{
}
throw SystemException("cannot lock mutex");
}
inline void MutexImpl::unlockImpl()
{
LeaveCriticalSection(&_cs);
}
} // namespace Poco
#endif // Foundation_Mutex_WIN32_INCLUDED
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