Advanced Python Programming

Critical sections

Critical sections indicate shared resources that are accessed by multiple processes or threads in a concurrent application, which can lead to unexpected, and even erroneous, behavior. We have seen that there are multiple methods to protect the integrity of the data contained in these resources, and we call these protected sections critical sections.

As you can imagine, the data in these critical sections, when interacted with and altered concurrently or in parallel, can become mishandled or corrupted. This is especially true when the threads and processes interacting with it are poorly coordinated and scheduled. The logical conclusion, therefore, is to not allow multiple agents to go into a critical section at the same time. ...