74 lines
2.6 KiB
C++
74 lines
2.6 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2008 by Sun Microsystems, Inc.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: AsyncronousLink.hxx,v $
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* $Revision: 1.4 $
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef DBAUI_ASYNCRONOUSLINK_HXX
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#define DBAUI_ASYNCRONOUSLINK_HXX
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#include <tools/link.hxx>
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#include <osl/mutex.hxx>
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namespace dbaui
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{
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// =========================================================================
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// a helper for multi-threaded handling of async events
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// -------------------------------------------------------------------------
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/** handles asynchronous links which may be called in multi-threaded environments
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If you use an instance of this class as member of your own class, it will handle
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several crucial points for you (for instance the case that somebody posts the
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event while another thread tries to delete this event in the _destructor_ of the
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class).
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*/
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class OAsyncronousLink
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{
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Link m_aHandler;
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protected:
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::osl::Mutex m_aEventSafety;
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::osl::Mutex m_aDestructionSafety;
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ULONG m_nEventId;
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public:
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/** constructs the object
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@param _rHandler The link to be called asyncronously
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*/
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OAsyncronousLink( const Link& _rHandler );
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virtual ~OAsyncronousLink();
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bool IsRunning() const { return m_nEventId != 0; }
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void Call( void* _pArgument = NULL );
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void CancelCall();
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protected:
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DECL_LINK(OnAsyncCall, void*);
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};
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}
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#endif // DBAUI_ASYNCRONOUSLINK_HXX
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