xref: /trunk/main/vcl/source/helper/threadex.cxx (revision cdf0e10c)

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 * Copyright 2000, 2010 Oracle and/or its affiliates.
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
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 *
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 * version 3 along with OpenOffice.org.  If not, see
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_vcl.hxx"

#define THREADEX_IMPLEMENTATION
#include <vcl/threadex.hxx>
#include <vcl/svapp.hxx>

using namespace vcl;

ThreadExecutor::ThreadExecutor()
{
	m_aFinish = osl_createCondition();
	m_aThread = NULL;
}

ThreadExecutor::~ThreadExecutor()
{
	osl_destroyCondition( m_aFinish );
	if( m_aThread )
		osl_destroyThread( m_aThread );
}

extern "C"
{
    static void call_worker( void* pInstance )
    {
        ThreadExecutor::worker( pInstance );
    }
}

void ThreadExecutor::worker( void* pInstance )
{
	ThreadExecutor* pThis = ((ThreadExecutor*)pInstance);
	pThis->m_nReturn = pThis->doIt();
	osl_setCondition( pThis->m_aFinish );
}

long ThreadExecutor::execute()
{
	osl_resetCondition( m_aFinish );
	if( m_aThread )
		osl_destroyThread( m_aThread ), m_aThread = NULL;
	m_aThread = osl_createThread( call_worker, this );
	while( ! osl_checkCondition( m_aFinish ) )
		Application::Reschedule();
	return m_nReturn;
}


SolarThreadExecutor::SolarThreadExecutor()
    :m_nReturn( 0 )
    ,m_bTimeout( false )
{
    m_aStart = osl_createCondition();
	m_aFinish = osl_createCondition();
}

SolarThreadExecutor::~SolarThreadExecutor()
{
    osl_destroyCondition( m_aStart );
	osl_destroyCondition( m_aFinish );
}

IMPL_LINK( SolarThreadExecutor, worker, void*, EMPTYARG )
{
    if ( !m_bTimeout )
    {
        osl_setCondition( m_aStart );
	    m_nReturn = doIt();
	    osl_setCondition( m_aFinish );
    }
	return m_nReturn;
}

long SolarThreadExecutor::impl_execute( const TimeValue* _pTimeout )
{
	if( ::vos::OThread::getCurrentIdentifier() == Application::GetMainThreadIdentifier() )
	{
        osl_setCondition( m_aStart );
		m_nReturn = doIt();
		osl_setCondition( m_aFinish );
	}
	else
	{
        osl_resetCondition( m_aStart );
		osl_resetCondition( m_aFinish );
		sal_uLong nSolarMutexCount = Application::ReleaseSolarMutex();
		sal_uLong nEvent = Application::PostUserEvent( LINK( this, SolarThreadExecutor, worker ) );
		if ( osl_cond_result_timeout == osl_waitCondition( m_aStart, _pTimeout ) )
		{
            m_bTimeout = true;
			Application::RemoveUserEvent( nEvent );
		}
        else
            osl_waitCondition( m_aFinish, NULL );
		if( nSolarMutexCount )
			Application::AcquireSolarMutex( nSolarMutexCount );
	}
	return m_nReturn;
}