126 lines
3.2 KiB
C++
126 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <svtools/asynclink.hxx>
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#include <osl/mutex.hxx>
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#include <tools/debug.hxx>
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#include <vcl/timer.hxx>
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#include <vcl/idle.hxx>
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#include <vcl/svapp.hxx>
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namespace svtools {
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void AsynchronLink::CreateMutex()
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{
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if( !_pMutex ) _pMutex = new osl::Mutex;
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}
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void AsynchronLink::Call( void* pObj, bool
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#ifdef DBG_UTIL
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bAllowDoubles
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#endif
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, bool bUseTimer )
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{
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#ifdef DBG_UTIL
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if ( bUseTimer || !_bInCall )
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DBG_WARNING( "Recursives Call. Eher ueber Timer. TLX Fragen" );
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#endif
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if( _aLink.IsSet() )
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{
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_pArg = pObj;
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DBG_ASSERT( bAllowDoubles ||
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( !_nEventId && ( !_pIdle || !_pIdle->IsActive() ) ),
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"Schon ein Call unterwegs" );
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ClearPendingCall();
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if( bUseTimer )
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{
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if( !_pIdle )
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{
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_pIdle = new Idle;
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_pIdle->SetPriority( SchedulerPriority::HIGHEST );
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_pIdle->SetIdleHdl( LINK(
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this, AsynchronLink, HandleCall_Idle) );
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}
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_pIdle->Start();
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}
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else
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{
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if( _pMutex ) _pMutex->acquire();
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_nEventId = Application::PostUserEvent( LINK( this, AsynchronLink, HandleCall_PostUserEvent), 0 );
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if( _pMutex ) _pMutex->release();
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}
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}
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}
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AsynchronLink::~AsynchronLink()
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{
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if( _nEventId )
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{
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Application::RemoveUserEvent( _nEventId );
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}
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delete _pIdle;
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if( _pDeleted ) *_pDeleted = true;
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delete _pMutex;
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}
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IMPL_LINK_NOARG_TYPED( AsynchronLink, HandleCall_Idle, Idle*, void )
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{
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if( _pMutex ) _pMutex->acquire();
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_nEventId = 0;
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if( _pMutex ) _pMutex->release();
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Call_Impl( _pArg );
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}
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IMPL_LINK_NOARG( AsynchronLink, HandleCall_PostUserEvent )
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{
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HandleCall_Idle(nullptr);
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return 0;
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}
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void AsynchronLink::ClearPendingCall()
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{
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if( _pMutex ) _pMutex->acquire();
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if( _nEventId )
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{
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Application::RemoveUserEvent( _nEventId );
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_nEventId = 0;
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}
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if( _pMutex ) _pMutex->release();
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if( _pIdle ) _pIdle->Stop();
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}
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void AsynchronLink::Call_Impl( void* pArg )
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{
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_bInCall = true;
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bool bDeleted = false;
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_pDeleted = &bDeleted;
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_aLink.Call( pArg );
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if( !bDeleted )
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{
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_bInCall = false;
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_pDeleted = 0;
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}
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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