ReadWriteMutex.h

#pragma once
 
#include <mutex>
#include <atomic>
#include <thread>
#include <iostream>
#include <condition_variable>
 
namespace mvlt
{
    class ReadWriteMutex
    {
    private:
        std::mutex WriteMutex, ReadMutex;
        std::atomic_int ReadCounter;
        std::atomic_bool IsCondVarWaiting;
        std::condition_variable Cv;
 
        // A variable for switching the operation of the mutex. It is needed so that you can disable the mutex during inheritance
        bool IsActive = true;
    public:
        ReadWriteMutex() noexcept;
 
        void Disable() noexcept;
 
        void ReadLock() noexcept;
 
        void ReadUnlock() noexcept;
 
        void WriteLock() noexcept;
 
        void WriteUnlock() noexcept;
    };
 
    class RecursiveReadWriteMutex
    {
    private:
        ReadWriteMutex Rwmx;
 
        // A variable for switching the operation of the mutex. It is needed so that you can disable the mutex during inheritance
        bool IsActive = true;
    public:
 
        void Disable() noexcept;
 
        void ReadLock() noexcept;
 
        void ReadUnlock() noexcept;
 
        void WriteLock() noexcept;
 
        void WriteUnlock() noexcept;
    };
 
    template <class Mutex>
    class ReadLock
    {
    private:
        Mutex& Mtx;
    public:
        ReadLock(Mutex& mtx) : Mtx(mtx) 
        {
            Mtx.ReadLock();
        }
 
        ~ReadLock()
        {
            Mtx.ReadUnlock();
        } 
    };
 
    template <class Mutex>
    class WriteLock
    {
    private:
        Mutex& Mtx;
    public:
        WriteLock(Mutex& mtx) : Mtx(mtx) 
        {
            Mtx.WriteLock();
        }
 
        ~WriteLock()
        {
            Mtx.WriteUnlock();
        } 
    };
}