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             : #include <unordered_map>
      25             : 
      26             : #include <osl/conditn.h>
      27             : 
      28             : #include <rtl/byteseq.hxx>
      29             : #include <rtl/ref.hxx>
      30             : #include <salhelper/simplereferenceobject.hxx>
      31             : 
      32             : #include <boost/shared_ptr.hpp>
      33             : 
      34             : #include "jobqueue.hxx"
      35             : 
      36             : 
      37             : namespace cppu_threadpool {
      38             :     class ORequestThread;
      39             : 
      40             :     struct EqualThreadId
      41             :     {
      42      657336 :         bool operator () ( const ::rtl::ByteSequence &a , const ::rtl::ByteSequence &b ) const
      43             :             {
      44      657336 :                 return a == b;
      45             :             }
      46             :     };
      47             : 
      48             :     struct HashThreadId
      49             :     {
      50      982026 :         sal_Int32 operator () ( const ::rtl::ByteSequence &a  )  const
      51             :             {
      52      982026 :                 if( a.getLength() >= 4 )
      53             :                 {
      54      982026 :                     return *reinterpret_cast<sal_Int32 const *>(a.getConstArray());
      55             :                 }
      56           0 :                 return 0;
      57             :             }
      58             :     };
      59             : 
      60             :     typedef std::unordered_map
      61             :     <
      62             :         ::rtl::ByteSequence, // ThreadID
      63             :         ::std::pair < JobQueue * , JobQueue * >,
      64             :         HashThreadId,
      65             :         EqualThreadId
      66             :     > ThreadIdHashMap;
      67             : 
      68             :     typedef ::std::list < sal_Int64 > DisposedCallerList;
      69             : 
      70             : 
      71      463977 :     struct WaitingThread
      72             :     {
      73             :         oslCondition condition;
      74             :         rtl::Reference< ORequestThread > thread;
      75             :     };
      76             : 
      77             :     typedef ::std::list < struct ::cppu_threadpool::WaitingThread * > WaitingThreadList;
      78             : 
      79             :     class DisposedCallerAdmin;
      80             :     typedef boost::shared_ptr<DisposedCallerAdmin> DisposedCallerAdminHolder;
      81             : 
      82          65 :     class DisposedCallerAdmin
      83             :     {
      84             :     public:
      85             :         ~DisposedCallerAdmin();
      86             : 
      87             :         static DisposedCallerAdminHolder getInstance();
      88             : 
      89             :         void dispose( sal_Int64 nDisposeId );
      90             :         void destroy( sal_Int64 nDisposeId );
      91             :         bool isDisposed( sal_Int64 nDisposeId );
      92             : 
      93             :     private:
      94             :         ::osl::Mutex m_mutex;
      95             :         DisposedCallerList m_lst;
      96             :     };
      97             : 
      98             :     class ThreadAdmin
      99             :     {
     100             :     public:
     101             :         ThreadAdmin();
     102             :         ~ThreadAdmin ();
     103             : 
     104             :         bool add( rtl::Reference< ORequestThread > const & );
     105             :         void remove( rtl::Reference< ORequestThread > const & );
     106             :         void join();
     107             : 
     108             :         void remove_locked( rtl::Reference< ORequestThread > const & );
     109             :         ::osl::Mutex m_mutex;
     110             : 
     111             :     private:
     112             :         ::std::list< rtl::Reference< ORequestThread > > m_lst;
     113             :         bool m_disposed;
     114             :     };
     115             : 
     116             :     class ThreadPool;
     117             :     typedef rtl::Reference<ThreadPool> ThreadPoolHolder;
     118             : 
     119             :     class ThreadPool: public salhelper::SimpleReferenceObject
     120             :     {
     121             :     public:
     122             :         ThreadPool();
     123             :         virtual ~ThreadPool();
     124             : 
     125             :         void dispose( sal_Int64 nDisposeId );
     126             :         void destroy( sal_Int64 nDisposeId );
     127             : 
     128             :         bool addJob( const ::rtl::ByteSequence &aThreadId,
     129             :                      bool bAsynchron,
     130             :                      void *pThreadSpecificData,
     131             :                      RequestFun * doRequest );
     132             : 
     133             :         void prepare( const ::rtl::ByteSequence &aThreadId );
     134             :         void * enter( const ::rtl::ByteSequence &aThreadId, sal_Int64 nDisposeId );
     135             : 
     136             :         /********
     137             :          * @return true, if queue could be successfully revoked.
     138             :          ********/
     139             :         bool revokeQueue( const ::rtl::ByteSequence & aThreadId , bool bAsynchron );
     140             : 
     141             :         void waitInPool( rtl::Reference< ORequestThread > const & pThread );
     142             : 
     143             :         void joinWorkers();
     144             : 
     145        1814 :         ThreadAdmin & getThreadAdmin() { return m_aThreadAdmin; }
     146             : 
     147             :     private:
     148             :         bool createThread( JobQueue *pQueue, const ::rtl::ByteSequence &aThreadId, bool bAsynchron);
     149             : 
     150             : 
     151             :         ThreadIdHashMap m_mapQueue;
     152             :         ::osl::Mutex m_mutex;
     153             : 
     154             :         ::osl::Mutex m_mutexWaitingThreadList;
     155             :         WaitingThreadList m_lstThreads;
     156             : 
     157             :         DisposedCallerAdminHolder m_DisposedCallerAdmin;
     158             :         ThreadAdmin m_aThreadAdmin;
     159             :     };
     160             : 
     161             : } // end namespace cppu_threadpool
     162             : 
     163             : #endif
     164             : 
     165             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */