Line data    Source code

       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             : #include <salhelper/condition.hxx>
      22             : #include <osl/time.h>
      23             : 
      24             : 
      25             : using namespace salhelper;
      26             : 
      27             : 
      28             : /******************************************************************
      29             :  *                                                                *
      30             :  *                     Condition                                  *
      31             :  *                                                                *
      32             :  ******************************************************************/
      33             : 
      34           4 : Condition::Condition(osl::Mutex& aMutex)
      35             :     : m_aMutex(aMutex),
      36           4 :       m_aCondition(osl_createCondition())
      37             : {
      38           4 : }
      39             : 
      40             : 
      41           4 : Condition::~Condition()
      42             : {
      43           4 :     osl_destroyCondition(m_aCondition);
      44           4 : }
      45             : 
      46             : 
      47             : /******************************************************************
      48             :  *                                                                *
      49             :  *              ConditionModifier                                 *
      50             :  *                                                                *
      51             :  ******************************************************************/
      52             : 
      53           0 : ConditionModifier::ConditionModifier(Condition& aCond)
      54           0 :     : m_aCond(aCond)
      55             : {
      56           0 :     m_aCond.m_aMutex.acquire();
      57           0 : }
      58             : 
      59             : 
      60           0 : ConditionModifier::~ConditionModifier()
      61             : {
      62           0 :     if(m_aCond.applies())
      63           0 :         osl_setCondition(m_aCond.m_aCondition);
      64             : 
      65           0 :     m_aCond.m_aMutex.release();
      66           0 : }
      67             : 
      68             : 
      69             : 
      70             : /******************************************************************
      71             :  *                                                                *
      72             :  *              ConditionWaiter                                   *
      73             :  *                                                                *
      74             :  ******************************************************************/
      75             : 
      76           8 : ConditionWaiter::timedout::timedout() {}
      77             : 
      78           0 : ConditionWaiter::timedout::timedout(timedout const &) {}
      79             : 
      80           8 : ConditionWaiter::timedout::~timedout() {}
      81             : 
      82             : ConditionWaiter::timedout &
      83           0 : ConditionWaiter::timedout::operator =(timedout const &) { return *this; }
      84             : 
      85           0 : ConditionWaiter::ConditionWaiter(Condition& aCond)
      86           0 :     : m_aCond(aCond)
      87             : {
      88             :     while(true) {
      89           0 :         osl_waitCondition(m_aCond.m_aCondition,0);
      90           0 :         m_aCond.m_aMutex.acquire();
      91             : 
      92           0 :         if(m_aCond.applies())
      93           0 :             break;
      94             :         else {
      95           0 :             osl_resetCondition(m_aCond.m_aCondition);
      96           0 :             m_aCond.m_aMutex.release();
      97             :         }
      98             :     }
      99           0 : }
     100             : 
     101             : 
     102           0 : ConditionWaiter::ConditionWaiter(Condition& aCond,sal_uInt32 milliSec)
     103             :     throw(
     104             :         ConditionWaiter::timedout
     105             :     )
     106           0 :     : m_aCond(aCond)
     107             : {
     108             :     TimeValue aTime;
     109           0 :     aTime.Seconds = milliSec / 1000;
     110           0 :     aTime.Nanosec = 1000000 * ( milliSec % 1000 );
     111             : 
     112             :     while(true) {
     113           0 :         if( osl_waitCondition(m_aCond.m_aCondition,&aTime) ==
     114             :             osl_cond_result_timeout )
     115           0 :             throw timedout();
     116             : 
     117           0 :         m_aCond.m_aMutex.acquire();
     118             : 
     119           0 :         if(m_aCond.applies())
     120           0 :             break;
     121             :         else {
     122           0 :             osl_resetCondition(m_aCond.m_aCondition);
     123           0 :             m_aCond.m_aMutex.release();
     124             :         }
     125           0 :     }
     126           0 : }
     127             : 
     128             : 
     129           0 : ConditionWaiter::~ConditionWaiter()
     130             : {
     131           0 :     if(! m_aCond.applies())
     132           0 :         osl_resetCondition(m_aCond.m_aCondition);
     133           0 :     m_aCond.m_aMutex.release();
     134           0 : }
     135             : 
     136             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */