Advanced Python Programming

The third readers-writers problem

You have seen that both of the solutions that we tried to implement can result in starvation, by not giving equal priorities to the separate threads; one can starve the writers, and the other can starve the readers. A balance between these two approaches might give us an implementation with equal priorities among the readers and writers, and hence, solve the problem of starvation.

Recall this: in our second approach, we are placing a lock on a reader's attempt to access the text file, requiring that no writer will be starved once it starts waiting for the file. In this solution, we will implement a lock that also utilizes this logic, but is then applied to both readers and writers. All of the threads will ...