condition_variable.hpp

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/****************************************************************************
 *
 *  Copyright (c) 2017, Michael Becker (michael.f.becker@gmail.com)
 *
 *  This file is part of the FreeRTOS Add-ons project.
 *
 *  Source Code:
 *  https://github.com/michaelbecker/freertos-addons
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 *  http://michaelbecker.github.io/freertos-addons/
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#ifndef CONDITION_VARIABLE_HPP_
#define CONDITION_VARIABLE_HPP_

#include <list>
#include "mutex.hpp"


#ifdef CPP_FREERTOS_CONDITION_VARIABLES


namespace cpp_freertos {

//
//  Forward declaration. We need to prevent a circular dependency
//  between the Thread class and the ConditionVariable class.
//
class Thread;


class ConditionVariable {

    //
    //  Public API
    //
    public:
    
        ConditionVariable();

        void Signal();

        void Broadcast();


    //
    //  Private API
    //  The internals of this wrapper class.
    //
    private:

        MutexStandard Lock;

        std::list<Thread *> WaitList;

        void AddToWaitList(Thread *thread);

    friend class Thread;
};


}

#endif

#endif