cppu/source/threadpool/jobqueue.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   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 #pragma once
  21
  22 #include <sal/config.h>
  23
  24 #include <condition_variable>
  25 #include <deque>
  26 #include <memory>
  27 #include <mutex>
  28
  29 #include <sal/types.h>
  30
  31 namespace cppu_threadpool
  32 {
  33     extern "C" typedef void (RequestFun)(void *);
  34
  35     struct Job
  36     {
  37         void *pThreadSpecificData;
  38         RequestFun * doRequest;
  39     };
  40
  41     class DisposedCallerAdmin;
  42     typedef std::shared_ptr<DisposedCallerAdmin> DisposedCallerAdminHolder;
  43
  44     class JobQueue
  45     {
  46     public:
  47         JobQueue();
  48
  49         void add( void *pThreadSpecificData, RequestFun * doRequest );
  50
  51         void *enter( void const * nDisposeId , bool bReturnWhenNoJob = false );
  52         void dispose( void const * nDisposeId );
  53
  54         void suspend();
  55         void resume();
  56
  57         bool isEmpty() const;
  58         bool isCallstackEmpty() const;
  59         bool isBusy() const;
  60
  61     private:
  62         mutable std::mutex m_mutex;
  63         std::deque < struct Job > m_lstJob;
  64         std::deque<void const *>  m_lstCallstack;
  65         sal_Int32 m_nToDo;
  66         bool m_bSuspended;
  67         std::condition_variable m_cndWait;
  68         DisposedCallerAdminHolder m_DisposedCallerAdmin;
  69     };
  70 }
  71
  72 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */