Add some comments to a4

Assignment4/round_robin.c

@@ -29,8 +29,10 @@ Queue *input_queue() {
 
 void simulation(Queue *queue) {
     printf("Time Job\n");
-    int time = 1;
-    Queue *sim_queue = createQueue();
+    int time = 1; // Timer starts at 1
+    Queue *sim_queue = createQueue(); // Create a queue for the simulation
+
+    // Summary creation
     Process *process = queue->end;
     // 24 since the max number of processes is 24
     Summary summary[24];
@@ -47,32 +49,38 @@ void simulation(Queue *queue) {
         process = process->prev_elem;
     }
 
+    // Loop variables
     int quantum = QUANTUM;
-    int done = 0;
+    int addedJobs = 0;
 
     while (true) {
+        // Begin going through all jobs and enqueueing them if they have arrived
         process = queue->end;
         for (int i = 0; i < queue->size; i++) {
             if (process->arrival_time == time) {
+                // Create copy to keep the queues separate
                 Process *copy = createProcess(process->username, process->job, process->arrival_time, process->duration);
                 enqueue(sim_queue, copy);
-                done++;
+                addedJobs++;
             }
             process = process->prev_elem;
         }
+
+        // Begin printing the current job
         process = sim_queue->end;
         if (sim_queue->size == 0) { //If there is nothing in sim_queue, print -
             printf("%d\t-\n", time);
-            if (done == queue->size) {
+            if (addedJobs == queue->size) {
                 break;
             }
         } else {
-            printf("%d\t%c\n", time, process->job);
+            printf("%d\t%c\n", time, process->job); // Print the current job
             process->duration--;
             quantum--;
-            if (process->duration == 0) { // If the process is done, remove it
+            if (process->duration == 0) { // If the process is done, delete it
                 Process *temp = dequeue(sim_queue);
 
+                // Update summary
                 for (int i = 0; i < summary_size; ++i) {
                     if (strcmp(summary[i].username, temp->username) == 0) {
                         summary[i].last_time = time;
@@ -92,12 +100,17 @@ void simulation(Queue *queue) {
         time++;
     }
 
+    // Print summary
     printf("\nSummary\n");
     for (int i = 0; i < how_many; i++) {
         if (summary[i].last_time != 0) {
             printf("%s\t%d\n", summary[i].username, summary[i].last_time);
         }
     }
+
+    // Free memory
+    stop(sim_queue);
+    stop(queue);
 }
 
 int main() {