autoresetevent.h

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
 
#pragma once
 
#include <mutex>
#include <functional>
#include <condition_variable>
 
namespace nap
{
    namespace utility
    {
        class AutoResetEvent
        {
        public:
            enum class EWaitResult
            {
                Completed,          
                Canceled            
            };
 
            using LockedWaitCallback = std::function<void(EWaitResult)>;
            using LockedSetCallback = std::function<void()>;
 
            void reset();
 
            EWaitResult wait(const LockedWaitCallback& callback = LockedWaitCallback());
 
            void set(const LockedSetCallback& callback = LockedSetCallback());
 
            void cancelWait();
 
        private:
            std::mutex              mMutex;                     
            std::condition_variable mSignaledCondition;         
            bool                    mSignaled = false;          
            bool                    mWaitCanceled = false;      
        };
    }
}