LCOV - code coverage report
Current view: top level - libreoffice/ucb/source/ucp/webdav-neon - NeonLockStore.cxx (source / functions) Hit Total Coverage
Test: libreoffice_filtered.info Lines: 0 93 0.0 %
Date: 2012-12-27 Functions: 0 15 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*************************************************************************
       3             :  *
       4             :  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
       5             :  *
       6             :  * Copyright 2000, 2010 Oracle and/or its affiliates.
       7             :  *
       8             :  * OpenOffice.org - a multi-platform office productivity suite
       9             :  *
      10             :  * This file is part of OpenOffice.org.
      11             :  *
      12             :  * OpenOffice.org is free software: you can redistribute it and/or modify
      13             :  * it under the terms of the GNU Lesser General Public License version 3
      14             :  * only, as published by the Free Software Foundation.
      15             :  *
      16             :  * OpenOffice.org is distributed in the hope that it will be useful,
      17             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      18             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      19             :  * GNU Lesser General Public License version 3 for more details
      20             :  * (a copy is included in the LICENSE file that accompanied this code).
      21             :  *
      22             :  * You should have received a copy of the GNU Lesser General Public License
      23             :  * version 3 along with OpenOffice.org.  If not, see
      24             :  * <http://www.openoffice.org/license.html>
      25             :  * for a copy of the LGPLv3 License.
      26             :  *
      27             :  ************************************************************************/
      28             : 
      29             : 
      30             : #include "warnings_guard_ne_locks.h"
      31             : #include <ne_uri.h>
      32             : #include "rtl/ustring.hxx"
      33             : #include "osl/time.h"
      34             : #include "osl/thread.hxx"
      35             : #include "salhelper/thread.hxx"
      36             : #include "NeonSession.hxx"
      37             : #include "NeonLockStore.hxx"
      38             : 
      39             : using namespace webdav_ucp;
      40             : 
      41             : namespace webdav_ucp {
      42             : 
      43           0 : class TickerThread : public salhelper::Thread
      44             : {
      45             :     bool m_bFinish;
      46             :     NeonLockStore & m_rLockStore;
      47             : 
      48             : public:
      49             : 
      50           0 :     TickerThread( NeonLockStore & rLockStore )
      51             :     : Thread( "NeonTickerThread" ), m_bFinish( false ),
      52           0 :       m_rLockStore( rLockStore ) {}
      53             : 
      54           0 :     void finish() { m_bFinish = true; }
      55             : 
      56             : private:
      57             : 
      58             :     virtual void execute();
      59             : };
      60             : 
      61             : } // namespace webdav_ucp
      62             : 
      63             : // -------------------------------------------------------------------
      64           0 : void TickerThread::execute()
      65             : {
      66             :     OSL_TRACE( "TickerThread: start." );
      67             : 
      68             :     // we have to go through the loop more often to be able to finish ~quickly
      69           0 :     const int nNth = 25;
      70             : 
      71           0 :     int nCount = nNth;
      72           0 :     while ( !m_bFinish )
      73             :     {
      74           0 :         if ( nCount-- <= 0 )
      75             :         {
      76           0 :             m_rLockStore.refreshLocks();
      77           0 :             nCount = nNth;
      78             :         }
      79             : 
      80             :         TimeValue aTV;
      81           0 :         aTV.Seconds = 0;
      82           0 :         aTV.Nanosec = 1000000000 / nNth;
      83           0 :         salhelper::Thread::wait( aTV );
      84             :     }
      85             : 
      86             :     OSL_TRACE( "TickerThread: stop." );
      87           0 : }
      88             : 
      89             : // -------------------------------------------------------------------
      90           0 : NeonLockStore::NeonLockStore()
      91           0 :     : m_pNeonLockStore( ne_lockstore_create() )
      92             : {
      93             :     OSL_ENSURE( m_pNeonLockStore, "Unable to create neon lock store!" );
      94           0 : }
      95             : 
      96             : // -------------------------------------------------------------------
      97           0 : NeonLockStore::~NeonLockStore()
      98             : {
      99           0 :     stopTicker();
     100             : 
     101             :     // release active locks, if any.
     102             :     OSL_ENSURE( m_aLockInfoMap.empty(),
     103             :                 "NeonLockStore::~NeonLockStore - Releasing active locks!" );
     104             : 
     105           0 :     LockInfoMap::const_iterator it( m_aLockInfoMap.begin() );
     106           0 :     const LockInfoMap::const_iterator end( m_aLockInfoMap.end() );
     107           0 :     while ( it != end )
     108             :     {
     109           0 :         NeonLock * pLock = (*it).first;
     110           0 :         (*it).second.xSession->UNLOCK( pLock );
     111             : 
     112           0 :         ne_lockstore_remove( m_pNeonLockStore, pLock );
     113           0 :         ne_lock_destroy( pLock );
     114             : 
     115           0 :         ++it;
     116             :     }
     117             : 
     118           0 :     ne_lockstore_destroy( m_pNeonLockStore );
     119           0 : }
     120             : 
     121             : // -------------------------------------------------------------------
     122           0 : void NeonLockStore::startTicker()
     123             : {
     124           0 :     osl::MutexGuard aGuard( m_aMutex );
     125             : 
     126           0 :     if ( !m_pTickerThread.is() )
     127             :     {
     128           0 :         m_pTickerThread = new TickerThread( *this );
     129           0 :         m_pTickerThread->launch();
     130           0 :     }
     131           0 : }
     132             : 
     133             : // -------------------------------------------------------------------
     134           0 : void NeonLockStore::stopTicker()
     135             : {
     136           0 :     osl::MutexGuard aGuard( m_aMutex );
     137             : 
     138           0 :     if ( m_pTickerThread.is() )
     139             :     {
     140           0 :         m_pTickerThread->finish();
     141           0 :         m_pTickerThread->join();
     142           0 :         m_pTickerThread.clear();
     143           0 :     }
     144           0 : }
     145             : 
     146             : // -------------------------------------------------------------------
     147           0 : void NeonLockStore::registerSession( HttpSession * pHttpSession )
     148             : {
     149           0 :     osl::MutexGuard aGuard( m_aMutex );
     150             : 
     151           0 :     ne_lockstore_register( m_pNeonLockStore, pHttpSession );
     152           0 : }
     153             : 
     154             : // -------------------------------------------------------------------
     155           0 : NeonLock * NeonLockStore::findByUri( rtl::OUString const & rUri )
     156             : {
     157           0 :     osl::MutexGuard aGuard( m_aMutex );
     158             : 
     159             :     ne_uri aUri;
     160             :     ne_uri_parse( rtl::OUStringToOString(
     161           0 :         rUri, RTL_TEXTENCODING_UTF8 ).getStr(), &aUri );
     162           0 :     return ne_lockstore_findbyuri( m_pNeonLockStore, &aUri );
     163             : }
     164             : 
     165             : // -------------------------------------------------------------------
     166           0 : void NeonLockStore::addLock( NeonLock * pLock,
     167             :                              rtl::Reference< NeonSession > const & xSession,
     168             :                              sal_Int32 nLastChanceToSendRefreshRequest )
     169             : {
     170           0 :     osl::MutexGuard aGuard( m_aMutex );
     171             : 
     172           0 :     ne_lockstore_add( m_pNeonLockStore, pLock );
     173           0 :     m_aLockInfoMap[ pLock ]
     174           0 :         = LockInfo( xSession, nLastChanceToSendRefreshRequest );
     175             : 
     176           0 :     startTicker();
     177           0 : }
     178             : 
     179             : // -------------------------------------------------------------------
     180           0 : void NeonLockStore::updateLock( NeonLock * pLock,
     181             :                                 sal_Int32 nLastChanceToSendRefreshRequest )
     182             : {
     183           0 :     osl::MutexGuard aGuard( m_aMutex );
     184             : 
     185           0 :     LockInfoMap::iterator it( m_aLockInfoMap.find( pLock ) );
     186             :     OSL_ENSURE( it != m_aLockInfoMap.end(),
     187             :                 "NeonLockStore::updateLock: lock not found!" );
     188             : 
     189           0 :     if ( it != m_aLockInfoMap.end() )
     190             :     {
     191           0 :         (*it).second.nLastChanceToSendRefreshRequest
     192           0 :             = nLastChanceToSendRefreshRequest;
     193           0 :     }
     194           0 : }
     195             : 
     196             : // -------------------------------------------------------------------
     197           0 : void NeonLockStore::removeLock( NeonLock * pLock )
     198             : {
     199           0 :     osl::MutexGuard aGuard( m_aMutex );
     200             : 
     201           0 :     m_aLockInfoMap.erase( pLock );
     202           0 :     ne_lockstore_remove( m_pNeonLockStore, pLock );
     203             : 
     204           0 :     if ( m_aLockInfoMap.empty() )
     205           0 :         stopTicker();
     206           0 : }
     207             : 
     208             : // -------------------------------------------------------------------
     209           0 : void NeonLockStore::refreshLocks()
     210             : {
     211           0 :     osl::MutexGuard aGuard( m_aMutex );
     212             : 
     213           0 :     LockInfoMap::iterator it( m_aLockInfoMap.begin() );
     214           0 :     const LockInfoMap::const_iterator end( m_aLockInfoMap.end() );
     215           0 :     while ( it != end )
     216             :     {
     217           0 :         LockInfo & rInfo = (*it).second;
     218           0 :         if ( rInfo.nLastChanceToSendRefreshRequest != -1 )
     219             :         {
     220             :             // 30 seconds or less remaining until lock expires?
     221             :             TimeValue t1;
     222           0 :             osl_getSystemTime( &t1 );
     223           0 :             if ( rInfo.nLastChanceToSendRefreshRequest - 30
     224             :                      <= sal_Int32( t1.Seconds ) )
     225             :             {
     226             :                 // refresh the lock.
     227           0 :                 sal_Int32 nlastChanceToSendRefreshRequest = -1;
     228           0 :                 if ( rInfo.xSession->LOCK(
     229           0 :                          (*it).first,
     230           0 :                          /* out param */ nlastChanceToSendRefreshRequest ) )
     231             :                 {
     232             :                     rInfo.nLastChanceToSendRefreshRequest
     233           0 :                         = nlastChanceToSendRefreshRequest;
     234             :                 }
     235             :                 else
     236             :                 {
     237             :                     // refresh failed. stop auto-refresh.
     238           0 :                     rInfo.nLastChanceToSendRefreshRequest = -1;
     239             :                 }
     240             :             }
     241             :         }
     242           0 :         ++it;
     243           0 :     }
     244           0 : }
     245             : 
     246             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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