bgfx/3rdparty/glslang/StandAlone/Worklist.h

//
// Copyright (C) 2013 LunarG, Inc.
//
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//
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// modification, are permitted provided that the following conditions
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//    notice, this list of conditions and the following disclaimer.
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//    Redistributions in binary form must reproduce the above
//    copyright notice, this list of conditions and the following
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#ifndef WORKLIST_H_INCLUDED
#define WORKLIST_H_INCLUDED

#include <list>
#include <mutex>
#include <string>

namespace glslang {

    class TWorkItem {
    public:
        TWorkItem() { }
        explicit TWorkItem(const std::string& s) :
            name(s) { }
        std::string name;
        std::string results;
        std::string resultsIndex;
    };

    class TWorklist {
    public:
        TWorklist() { }
        virtual ~TWorklist() { }

        void add(TWorkItem* item)
        {
            std::lock_guard<std::mutex> guard(mutex);
            worklist.push_back(item);
        }

        bool remove(TWorkItem*& item)
        {
            std::lock_guard<std::mutex> guard(mutex);

            if (worklist.empty())
                return false;
            item = worklist.front();
            worklist.pop_front();

            return true;
        }

        int size()
        {
            return (int)worklist.size();
        }

        bool empty()
        {
            return worklist.empty();
        }

    protected:
        std::mutex mutex;
        std::list<TWorkItem*> worklist;
    };

} // end namespace glslang

#endif // WORKLIST_H_INCLUDED