1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 // MARKER(update_precomp.py): autogen include statement, do not remove 29 #include "precompiled_svtools.hxx" 30 31 #include <svtools/asynclink.hxx> 32 #include <vos/mutex.hxx> 33 #include <tools/debug.hxx> 34 #include <vcl/timer.hxx> 35 #include <vcl/svapp.hxx> 36 37 //-------------------------------------------------------------------- 38 namespace svtools { 39 40 void AsynchronLink::CreateMutex() 41 { 42 if( !_pMutex ) _pMutex = new vos::OMutex; 43 } 44 45 void AsynchronLink::Call( void* pObj, sal_Bool 46 #ifdef DBG_UTIL 47 bAllowDoubles 48 #endif 49 , sal_Bool bUseTimer ) 50 { 51 #ifdef DBG_UTIL 52 if ( bUseTimer || !_bInCall ) 53 DBG_WARNING( "Recursives Call. Eher ueber Timer. TLX Fragen" ); 54 #endif 55 if( _aLink.IsSet() ) 56 { 57 _pArg = pObj; 58 DBG_ASSERT( bAllowDoubles || 59 ( !_nEventId && ( !_pTimer || !_pTimer->IsActive() ) ), 60 "Schon ein Call unterwegs" ); 61 if( _nEventId ) 62 { 63 if( _pMutex ) _pMutex->acquire(); 64 Application::RemoveUserEvent( _nEventId ); 65 if( _pMutex ) _pMutex->release(); 66 } 67 if( _pTimer )_pTimer->Stop(); 68 if( bUseTimer ) 69 { 70 if( !_pTimer ) 71 { 72 _pTimer = new Timer; 73 _pTimer->SetTimeout( 0 ); 74 _pTimer->SetTimeoutHdl( STATIC_LINK( 75 this, AsynchronLink, HandleCall) ); 76 } 77 _pTimer->Start(); 78 } 79 else 80 { 81 if( _pMutex ) _pMutex->acquire(); 82 Application::PostUserEvent( _nEventId, STATIC_LINK( this, AsynchronLink, HandleCall), 0 ); 83 if( _pMutex ) _pMutex->release(); 84 } 85 } 86 } 87 88 AsynchronLink::~AsynchronLink() 89 { 90 if( _nEventId ) 91 { 92 Application::RemoveUserEvent( _nEventId ); 93 } 94 delete _pTimer; 95 if( _pDeleted ) *_pDeleted = sal_True; 96 delete _pMutex; 97 } 98 99 IMPL_STATIC_LINK( AsynchronLink, HandleCall, void*, EMPTYARG ) 100 { 101 if( pThis->_pMutex ) pThis->_pMutex->acquire(); 102 pThis->_nEventId = 0; 103 if( pThis->_pMutex ) pThis->_pMutex->release(); 104 pThis->Call_Impl( pThis->_pArg ); 105 return 0; 106 } 107 108 void AsynchronLink::ForcePendingCall() 109 { 110 ClearPendingCall(); 111 Call_Impl( _pArg ); 112 } 113 114 void AsynchronLink::ClearPendingCall() 115 { 116 if( _pMutex ) _pMutex->acquire(); 117 if( _nEventId ) 118 { 119 Application::RemoveUserEvent( _nEventId ); 120 _nEventId = 0; 121 } 122 if( _pMutex ) _pMutex->release(); 123 if( _pTimer ) _pTimer->Stop(); 124 } 125 126 void AsynchronLink::Call_Impl( void* pArg ) 127 { 128 _bInCall = sal_True; 129 sal_Bool bDeleted = sal_False; 130 _pDeleted = &bDeleted; 131 _aLink.Call( pArg ); 132 if( !bDeleted ) 133 { 134 _bInCall = sal_False; 135 _pDeleted = 0; 136 } 137 } 138 139 } 140