StandAlone/Worklist.h

   1 //
   2 // Copyright (C) 2013 LunarG, Inc.
   3 //
   4 // All rights reserved.
   5 //
   6 // Redistribution and use in source and binary forms, with or without
   7 // modification, are permitted provided that the following conditions
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   9 //
  10 //    Redistributions of source code must retain the above copyright
  11 //    notice, this list of conditions and the following disclaimer.
  12 //
  13 //    Redistributions in binary form must reproduce the above
  14 //    copyright notice, this list of conditions and the following
  15 //    disclaimer in the documentation and/or other materials provided
  16 //    with the distribution.
  17 //
  18 //    Neither the name of 3Dlabs Inc. Ltd. nor the names of its
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  20 //    from this software without specific prior written permission.
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  22 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  25 // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  26 // COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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  34 //
  35 #ifndef WORKLIST_H_INCLUDED
  36 #define WORKLIST_H_INCLUDED
  37
  38 #include <list>
  39 #include <mutex>
  40 #include <string>
  41
  42 namespace glslang {
  43
  44     class TWorkItem {
  45     public:
  46         TWorkItem() { }
  47         explicit TWorkItem(const std::string& s) :
  48             name(s) { }
  49         std::string name;
  50         std::string results;
  51         std::string resultsIndex;
  52     };
  53
  54     class TWorklist {
  55     public:
  56         TWorklist() { }
  57         virtual ~TWorklist() { }
  58
  59         void add(TWorkItem* item)
  60         {
  61             std::lock_guard<std::mutex> guard(mutex);
  62             worklist.push_back(item);
  63         }
  64
  65         bool remove(TWorkItem*& item)
  66         {
  67             std::lock_guard<std::mutex> guard(mutex);
  68
  69             if (worklist.empty())
  70                 return false;
  71             item = worklist.front();
  72             worklist.pop_front();
  73
  74             return true;
  75         }
  76
  77         int size()
  78         {
  79             return (int)worklist.size();
  80         }
  81
  82         bool empty()
  83         {
  84             return worklist.empty();
  85         }
  86
  87     protected:
  88         std::mutex mutex;
  89         std::list<TWorkItem*> worklist;
  90     };
  91
  92 } // end namespace glslang
  93
  94 #endif // WORKLIST_H_INCLUDED