Semaphore In Cpp | Threading Cpp11

TOPIC: Semaphore In C++

POINTS:

1.0 Semaphore is a signaling mechanism (T1 saying i am done T2 please carry on).

2.0 There are two types of semaphores 

    a. Binary Semaphore

    b. Counting Semaphore

BINARY SEMAPHORE:

1.0 Binary Semaphore means there are two state 0 or 1.

2.0 

#include <thread>

#include <mutex>

#include <deque>

#include <vector>

#include <condition_variable>

using namespace std;

class Semaphore{

public:

    void insert(const std::vector<int>& Vec) {

        down();

        up();

    }

    void remove() {}

private:

    void down() {

        headMutex.lock();

        freeId = getFreeBufferId();

        if(freeId == -1){

            // cv, mutex = nullptr

        }else{

            // cv and mutex;

        }

        headMutex.unlock();

        // return cv and mutex;

    }

    void up() {}

private:

    std::mutex headMutex;

    std::mutex m[4];

    std::condition_variable cv[4];

    deque<int> VecOfQue[4];

}sem;

int main() {

    std::thread con(&Semaphore::remove,&sem);

    std::vector<std::thread> threadVec;

    for(int i=0; i<10; ++i){

        std::vector<int> job = {i*1, i*2, i*3, i*4};

        threadVec.push_back(std::thread(&Semaphore::insert,&sem,std::ref(job)));

    }

    for(auto& thread: threadVec){

        thread.join();

    }

    con.join();

    return 0;

}