xmog_lock_holder.h

/*
 * Copyright 1999-2006 by Codemesh, Inc.  ALL RIGHTS RESERVED.
 */

#ifndef xmogLockHolder_inc
#define xmogLockHolder_inc


#include "xmog_base.h"
#include "xmog_java_ref.h"
#include "xmog_java_class.h"


class xmog_lock_holder
{
private:
    
    xmog_java_ref &     toLock_;

    int                 holding_;

    xmog_lock_holder( const xmog_lock_holder & );
    xmog_lock_holder &  operator = ( const xmog_lock_holder & );

public:

    xmog_lock_holder( xmog_java_ref & _toLock ) : 
        toLock_( _toLock ), 
        holding_( 0 )
    {
        try
        {
#       if !defined(XMOG_NULL_NAME)
            if( toLock_ != null )
            {
                toLock_.xmog_monitor_enter();
                holding_ = 1;
            }
#       else
            if( toLock_ != XMOG_NULL_NAME )
            {
                toLock_.xmog_monitor_enter();
                holding_ = 1;
            }
#       endif
        }
        catch( xmog_exception & )
        {
            throw;
        }
    }

    ~xmog_lock_holder()
    {
        if( holding_ )
        {
            toLock_.xmog_monitor_exit();
        }
    }
};


#endif /* xmogLockHolder_inc */

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