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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