libreoffice/framework/inc/threadhelp/igate.h

/*************************************************************************
 *
 *  $RCSfile: igate.h,v $
 *
 *  $Revision: 1.1 $
 *
 *  last change: $Author: as $ $Date: 2001-06-11 10:11:32 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA  02111-1307  USA
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (the "License"); You may not use this file
 *  except in compliance with the License. You may obtain a copy of the
 *  License at http://www.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
 *
 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
 *
 *  Copyright: 2000 by Sun Microsystems, Inc.
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): _______________________________________
 *
 *
 ************************************************************************/

#ifndef __FRAMEWORK_THREADHELP_IGATE_H_
#define __FRAMEWORK_THREADHELP_IGATE_H_

//_________________________________________________________________________________________________________________
//  includes
//_________________________________________________________________________________________________________________

#ifndef _OSL_TIME_H_
#include <osl/time.h>
#endif

//_________________________________________________________________________________________________________________
//  namespace
//_________________________________________________________________________________________________________________

namespace framework{

//_________________________________________________________________________________________________________________
//  declarations
//_________________________________________________________________________________________________________________

/*-************************************************************************************************************//**
    @descr          We need this interface to support using of different gate implementations in a generic way.
*//*-*************************************************************************************************************/
class IGate
{
    //-------------------------------------------------------------------------------------------------------------
    //  public methods
    //-------------------------------------------------------------------------------------------------------------
    public:

        /*-****************************************************************************************************//**
            @descr      These functions must be supported by a derived class!
                            open()      -open access for all waiting threads
                            close()     -close access for all further coming threads
                            openGap()   -open access for current waiting threads only
                            wait()      -must be called to pass the gate
        *//*-*****************************************************************************************************/
        virtual void     open    (                                   ) = 0;
        virtual void     close   (                                   ) = 0;
        virtual void     openGap (                                   ) = 0;
        virtual sal_Bool wait    ( const TimeValue* pTimeOut = NULL  ) = 0;

};      //  class IGate

}       //  namespace framework

#endif  //  #ifndef __FRAMEWORK_THREADHELP_IGATE_H_