Thread Synchronization | Process Synchronization | Threading Cpp11

TOPIC: Thread OR Process Synchronisation

NOTE: we will use only thread examples to explain this topic.

POINTS:

1.0 Thread Or Process synchronise to access critical section.

2.0 Critical section is one or collection of program statements which should be executed by only one thread or process

    at a time.

#include <iostream>

#include <thread>

#include <mutex>

using namespace std;

long long bankBalance = 0;

std::mutex m;

void addMoney(long long val) {

    m.lock();

    bankBalance+=val;

    m.unlock();

}

int main() {

    std::thread t1(addMoney,100);

    std::thread t2(addMoney,200);

    t1.join();

    t2.join();

    cout << "Final BankBalance : " << bankBalance << endl;

    return 0;

}