std::lock is used to lock multiple mutex at the same time. Syntax: styntax: std::lock(m1, m2, m3, m4); It will be able to lock all the objects in a non deadlock way by using deadlock avoidance algorithm. It will make series of lock, try_lock, and unlock to …
In the previous chapter we studied about promise and future. In this chapter we shall see how to achieve the same using “async” and “future”. “async” is present in namespace std. “std::scync” is used to get asynchronous execution of the tasks. It means, you start a …
A conditional variable is used to block and object until it is “notified” to makeup. To use conditional variables, we need to use below header: #include <condition_variable> // std::condition_variable Conditional variable uses unique_lock to lock a thread when one of its wait functions is called. Then …
In the previous chapter we learn about timed_mutex, in this chapter we shall learn about recursive_mutex. Need for recursive mutex? Suppose there is a recursive function that acquires lock before calling itself as shown below: recursive_function() { . . . m.lock(); recursive_function(); m.unlock(); } Now the …
In the previous chapters we learnt about Mutex, Race condition and critical section. In this chapter we shall learn about timed mutex. Generally in a mutex, when one thread tries to acquires a lock , that has already been locked by another thread , current thread …
In the previous chapter we learn about mutex. In this chapter we shall learn about try_lock member function in mutex. As explained in the previous statement, try_lock is a member function of mutex class. There are different types of try_lock functions available. They are: There are …
Mutex stands for Mutual Exclusion. What is mutual exclusion? To answer this question, we need to understand what is Race Condition? A race condition is a situation where two or more threads or process trying to modify the data at the same time. Race condition occurs …