Semaphores for Ordering
Explore how semaphores serve as synchronization tools to order events in concurrent programs. Understand the use of sem_wait and sem_post calls to ensure proper sequencing between threads, including initializing semaphore values for locks and ordering scenarios. This lesson helps you master semaphore usage for effective concurrency control.
We'll cover the following...
We'll cover the following...
Semaphores are also useful to order events in a concurrent program. For example, a thread may wish to wait for a list to become non-empty, so it can delete an element from it. In this pattern of usage, we often find one thread waiting for something to happen, and another thread making that something happen and then signaling that it has happened, thus waking the waiting ...