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             : #ifndef INCLUDED_CPPU_SOURCE_THREADPOOL_THREADPOOL_HXX
      21             : #define INCLUDED_CPPU_SOURCE_THREADPOOL_THREADPOOL_HXX
      22             : 
      23             : #include <list>
      24             : 
      25             : #include <boost/unordered_map.hpp>
      26             : 
      27             : #include <osl/conditn.h>
      28             : 
      29             : #include <rtl/byteseq.hxx>
      30             : #include <rtl/ref.hxx>
      31             : #include <salhelper/simplereferenceobject.hxx>
      32             : 
      33             : #include <boost/shared_ptr.hpp>
      34             : 
      35             : #include "jobqueue.hxx"
      36             : 
      37             : 
      38             : using namespace ::rtl;
      39             : namespace cppu_threadpool {
      40             :     class ORequestThread;
      41             : 
      42             :     struct EqualThreadId
      43             :     {
      44           0 :         bool operator () ( const ::rtl::ByteSequence &a , const ::rtl::ByteSequence &b ) const
      45             :             {
      46           0 :                 return a == b;
      47             :             }
      48             :     };
      49             : 
      50             :     struct HashThreadId
      51             :     {
      52           0 :         sal_Int32 operator () ( const ::rtl::ByteSequence &a  )  const
      53             :             {
      54           0 :                 if( a.getLength() >= 4 )
      55             :                 {
      56           0 :                     return *(sal_Int32 *)a.getConstArray();
      57             :                 }
      58           0 :                 return 0;
      59             :             }
      60             :     };
      61             : 
      62             :     typedef ::boost::unordered_map
      63             :     <
      64             :         ByteSequence, // ThreadID
      65             :         ::std::pair < JobQueue * , JobQueue * >,
      66             :         HashThreadId,
      67             :         EqualThreadId
      68             :     > ThreadIdHashMap;
      69             : 
      70             :     typedef ::std::list < sal_Int64 > DisposedCallerList;
      71             : 
      72             : 
      73           0 :     struct WaitingThread
      74             :     {
      75             :         oslCondition condition;
      76             :         rtl::Reference< ORequestThread > thread;
      77             :     };
      78             : 
      79             :     typedef ::std::list < struct ::cppu_threadpool::WaitingThread * > WaitingThreadList;
      80             : 
      81             :     class DisposedCallerAdmin;
      82             :     typedef boost::shared_ptr<DisposedCallerAdmin> DisposedCallerAdminHolder;
      83             : 
      84           0 :     class DisposedCallerAdmin
      85             :     {
      86             :     public:
      87             :         ~DisposedCallerAdmin();
      88             : 
      89             :         static DisposedCallerAdminHolder getInstance();
      90             : 
      91             :         void dispose( sal_Int64 nDisposeId );
      92             :         void destroy( sal_Int64 nDisposeId );
      93             :         bool isDisposed( sal_Int64 nDisposeId );
      94             : 
      95             :     private:
      96             :         ::osl::Mutex m_mutex;
      97             :         DisposedCallerList m_lst;
      98             :     };
      99             : 
     100             :     class ThreadAdmin
     101             :     {
     102             :     public:
     103             :         ThreadAdmin();
     104             :         ~ThreadAdmin ();
     105             : 
     106             :         void add( rtl::Reference< ORequestThread > const & );
     107             :         void remove( rtl::Reference< ORequestThread > const & );
     108             :         void join();
     109             : 
     110             :         void remove_locked( rtl::Reference< ORequestThread > const & );
     111             :         ::osl::Mutex m_mutex;
     112             : 
     113             :     private:
     114             :         ::std::list< rtl::Reference< ORequestThread > > m_lst;
     115             :         bool m_disposed;
     116             :     };
     117             : 
     118             :     class ThreadPool;
     119             :     typedef rtl::Reference<ThreadPool> ThreadPoolHolder;
     120             : 
     121             :     class ThreadPool: public salhelper::SimpleReferenceObject
     122             :     {
     123             :     public:
     124             :         ThreadPool();
     125             :         virtual ~ThreadPool();
     126             : 
     127             :         void dispose( sal_Int64 nDisposeId );
     128             :         void destroy( sal_Int64 nDisposeId );
     129             : 
     130             :         void addJob( const ByteSequence &aThreadId,
     131             :                      bool bAsynchron,
     132             :                      void *pThreadSpecificData,
     133             :                      RequestFun * doRequest );
     134             : 
     135             :         void prepare( const ByteSequence &aThreadId );
     136             :         void * enter( const ByteSequence &aThreadId, sal_Int64 nDisposeId );
     137             : 
     138             :         /********
     139             :          * @return true, if queue could be successfully revoked.
     140             :          ********/
     141             :         bool revokeQueue( const ByteSequence & aThreadId , bool bAsynchron );
     142             : 
     143             :         void waitInPool( rtl::Reference< ORequestThread > const & pThread );
     144             : 
     145             :         void joinWorkers();
     146             : 
     147           0 :         ThreadAdmin & getThreadAdmin() { return m_aThreadAdmin; }
     148             : 
     149             :     private:
     150             :         void createThread( JobQueue *pQueue, const ByteSequence &aThreadId, bool bAsynchron);
     151             : 
     152             : 
     153             :         ThreadIdHashMap m_mapQueue;
     154             :         ::osl::Mutex m_mutex;
     155             : 
     156             :         ::osl::Mutex m_mutexWaitingThreadList;
     157             :         WaitingThreadList m_lstThreads;
     158             : 
     159             :         DisposedCallerAdminHolder m_DisposedCallerAdmin;
     160             :         ThreadAdmin m_aThreadAdmin;
     161             :     };
     162             : 
     163             : } // end namespace cppu_threadpool
     164             : 
     165             : #endif
     166             : 
     167             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */