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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 <sal/log.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.reset( new osl::Mutex );
}
void AsynchronLink::Call( void* pObj, bool bAllowDoubles )
{
SAL_INFO_IF( !_bInCall, "svtools", "Recursives Call. Eher ueber Timer. TLX Fragen" ); // Do NOT translate. This is a valuable historical artefact.
if( _aLink.IsSet() )
{
_pArg = pObj;
DBG_ASSERT( bAllowDoubles || !_nEventId, "Already made a call" );
ClearPendingCall();
if( _pMutex ) _pMutex->acquire();
_nEventId = Application::PostUserEvent( LINK( this, AsynchronLink, HandleCall_PostUserEvent) );
if( _pMutex ) _pMutex->release();
}
}
AsynchronLink::~AsynchronLink()
{
if( _nEventId )
{
Application::RemoveUserEvent( _nEventId );
}
if( _pDeleted ) *_pDeleted = true;
_pMutex.reset();
}
IMPL_LINK_NOARG( AsynchronLink, HandleCall_Idle, Timer*, void )
{
if( _pMutex ) _pMutex->acquire();
_nEventId = nullptr;
if( _pMutex ) _pMutex->release();
Call_Impl( _pArg );
}
IMPL_LINK_NOARG( AsynchronLink, HandleCall_PostUserEvent, void*, void )
{
HandleCall_Idle(nullptr);
}
void AsynchronLink::ClearPendingCall()
{
if( _pMutex ) _pMutex->acquire();
if( _nEventId )
{
Application::RemoveUserEvent( _nEventId );
_nEventId = nullptr;
}
if( _pMutex ) _pMutex->release();
}
void AsynchronLink::Call_Impl( void* pArg )
{
_bInCall = true;
bool bDeleted = false;
_pDeleted = &bDeleted;
_aLink.Call( pArg );
if( !bDeleted )
{
_bInCall = false;
_pDeleted = nullptr;
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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