Turn Variable
A turn variable serves as a synchronization primitive in determining the sequential access to a shared resource by processes or threads. It often works alongside other synchronization mechanisms like semaphores or condition variables to implement a fair scheduling policy. The turn variable essentially acts as a queue or waiting list, dictating the order in which processes gain access to the resource.
Processes or threads are arranged in a queue based on a predefined order. The turn variable determines which process from the queue is given access. This system guarantees that each process takes its turn to access the resource, effectively preventing starvation and ensuring fairness.
Difference Between Lock variable and Turn variable in Operating System
In operating systems, effective and reliable synchronization mechanisms play a vital role in managing concurrency and coordinating the activities of multiple processes or threads. Two essential tools for synchronization are lock variables and turn variables, each serving distinct purposes and having unique characteristics. In this article, we will explore the key differences between lock variable and turn variables