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 #include <vcl/threadex.hxx>
  21 #include <vcl/svapp.hxx>
  22
  23 using namespace vcl;
  24
  25 SolarThreadExecutor::SolarThreadExecutor()
  26     :m_nReturn( 0 )
  27     ,m_bTimeout( false )
  28 {
  29     m_aStart = osl_createCondition();
  30     m_aFinish = osl_createCondition();
  31 }
  32
  33 SolarThreadExecutor::~SolarThreadExecutor()
  34 {
  35     osl_destroyCondition( m_aStart );
  36     osl_destroyCondition( m_aFinish );
  37 }
  38
  39 IMPL_LINK_NOARG(SolarThreadExecutor, worker, void*, void)
  40 {
  41     if ( !m_bTimeout )
  42     {
  43         osl_setCondition( m_aStart );
  44         m_nReturn = doIt();
  45         osl_setCondition( m_aFinish );
  46     }
  47 }
  48
  49 void SolarThreadExecutor::execute()
  50 {
  51     if( ::osl::Thread::getCurrentIdentifier() == Application::GetMainThreadIdentifier() )
  52     {
  53         osl_setCondition( m_aStart );
  54         m_nReturn = doIt();
  55         osl_setCondition( m_aFinish );
  56     }
  57     else
  58     {
  59         osl_resetCondition( m_aStart );
  60         osl_resetCondition( m_aFinish );
  61         SolarMutexReleaser aReleaser;
  62         ImplSVEvent * nEvent = Application::PostUserEvent( LINK( this, SolarThreadExecutor, worker ) );
  63         if ( osl_cond_result_timeout == osl_waitCondition( m_aStart, nullptr ) )
  64         {
  65             m_bTimeout = true;
  66             Application::RemoveUserEvent( nEvent );
  67         }
  68         else
  69             osl_waitCondition( m_aFinish, nullptr );
  70     }
  71 }
  72
  73 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */