condition variable

Therefore, at the end of it all, you now have two reader threads, both waiting on the condition variable, and the mutex is unlocked.

It also allows you to unlock the mutex and wait on the condition variable atomically, without the possible intervention of another thread.

The notion of a state-based condition variable is an important one.

Release all waiting threads without changing the state of the underlying condition variable.

If you want to create multiple conditions to use with your transport rule, repeat this process for each condition variable.

Methods, there can be more than one condition variable associated with a given.

A condition variable enables developers to implement a condition in which a thread executes and then blocked.

Popping data with timeouts is more involved than pushing; note that the reader thread is waiting on the condition variable.

In some implementations, threads may occasionally wake up without a signal sent to their condition variable.

The thread that activates once the counter reaches the limit would wait on the condition variable.

Table 1 above displays the pthread condition variable for synchronization between threads.

However, a mutex should accompany each condition variable.

Instead of throwing an exception when the queue is empty, the reader thread now blocks itself on the condition variable.

By doing so, thread 2 will cause all threads waiting on the mycond condition variable to immediately wake up.