vcl/source/helper/threadex.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #define THREADEX_IMPLEMENTATION
  22 #include <vcl/threadex.hxx>
  23 #include <vcl/svapp.hxx>
  24
  25 using namespace vcl;
  26
  27 SolarThreadExecutor::SolarThreadExecutor()
  28     :m_nReturn( 0 )
  29     ,m_bTimeout( false )
  30 {
  31     m_aStart = osl_createCondition();
  32     m_aFinish = osl_createCondition();
  33 }
  34
  35 SolarThreadExecutor::~SolarThreadExecutor()
  36 {
  37     osl_destroyCondition( m_aStart );
  38     osl_destroyCondition( m_aFinish );
  39 }
  40
  41 IMPL_LINK_NOARG(SolarThreadExecutor, worker)
  42 {
  43     if ( !m_bTimeout )
  44     {
  45         osl_setCondition( m_aStart );
  46         m_nReturn = doIt();
  47         osl_setCondition( m_aFinish );
  48     }
  49     return m_nReturn;
  50 }
  51
  52 long SolarThreadExecutor::impl_execute( const TimeValue* _pTimeout )
  53 {
  54     if( ::osl::Thread::getCurrentIdentifier() == Application::GetMainThreadIdentifier() )
  55     {
  56         osl_setCondition( m_aStart );
  57         m_nReturn = doIt();
  58         osl_setCondition( m_aFinish );
  59     }
  60     else
  61     {
  62         osl_resetCondition( m_aStart );
  63         osl_resetCondition( m_aFinish );
  64         sal_uLong nSolarMutexCount = Application::ReleaseSolarMutex();
  65         sal_uLong nEvent = Application::PostUserEvent( LINK( this, SolarThreadExecutor, worker ) );
  66         if ( osl_cond_result_timeout == osl_waitCondition( m_aStart, _pTimeout ) )
  67         {
  68             m_bTimeout = true;
  69             Application::RemoveUserEvent( nEvent );
  70         }
  71         else
  72             osl_waitCondition( m_aFinish, NULL );
  73         if( nSolarMutexCount )
  74             Application::AcquireSolarMutex( nSolarMutexCount );
  75     }
  76     return m_nReturn;
  77 }
  78
  79 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */