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