How do I implement FCFS scheduling in my operating system?

How do I implement FCFS scheduling in my operating system?

To implement FCFS (First-Come, First-Served) scheduling, you need to maintain a queue of processes. The first process in the queue is executed until completion, then the next one is processed.

What data structures should I use for the queue?

You can use a simple linked list or an array to implement the queue. A linked list is often preferred for dynamic process management.

How do I handle process arrival and completion?

When a process arrives, add it to the end of the queue. When a process completes, remove it from the front of the queue and start the next process.

Are there any drawbacks to using FCFS scheduling?

Yes, FCFS can lead to the 'convoy effect,' where shorter processes wait for a long process to finish, causing inefficiency.