xref: /trunk/main/package/inc/mutexholder.hxx (revision cdf0e10c)

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#ifndef __MUTEXHOLDER_HXX_
#define __MUTEXHOLDER_HXX_

#include <osl/mutex.hxx>

class SotMutexHolder
{
	::osl::Mutex m_aMutex;
	sal_Int32	 m_nRefCount;

	public:
	SotMutexHolder() : m_nRefCount( 0 ) {}

	void AddRef()
	{
		m_nRefCount++;
	}

	void ReleaseRef()
	{
		if ( !--m_nRefCount )
			delete this;
	}

	::osl::Mutex& GetMutex() { return m_aMutex; }
};

class SotMutexHolderRef
{
	SotMutexHolder* m_pHolder;

public:
	SotMutexHolderRef()
	: m_pHolder( NULL )
	{}

	SotMutexHolderRef( SotMutexHolder* pHolder )
	: m_pHolder( pHolder )
	{
		if ( m_pHolder )
			m_pHolder->AddRef();
	}

	SotMutexHolderRef( const SotMutexHolderRef& rRef )
	: m_pHolder( rRef.m_pHolder )
	{
		if ( m_pHolder )
			m_pHolder->AddRef();
	}

	~SotMutexHolderRef()
	{
		if ( m_pHolder )
			m_pHolder->ReleaseRef();
	}

	SotMutexHolderRef& operator =( const SotMutexHolderRef& rRef )
	{
		if ( m_pHolder )
			m_pHolder->ReleaseRef();

		m_pHolder = rRef.m_pHolder;

		if ( m_pHolder )
			m_pHolder->AddRef();

		return *this;
	}

	SotMutexHolderRef& operator =( SotMutexHolder* pHolder )
	{
		if ( m_pHolder )
			m_pHolder->ReleaseRef();

		m_pHolder = pHolder;

		if ( m_pHolder )
			m_pHolder->AddRef();
		return *this;
	}

	SotMutexHolder* operator ->() const
	{
		return m_pHolder;
	}

	SotMutexHolder& operator *() const
	{
		return *m_pHolder;
	}

	operator SotMutexHolder*() const
	{
		return m_pHolder;
	}

	sal_Bool Is() const
	{
		return m_pHolder != NULL;
	}
};

#endif