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HasanYahya101 · Nov 29, 2024 · ff8424f · ff8424f
1 parent 72b16c7
commit ff8424f
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diff --git a/Lab_13/Makefile b/Lab_13/Makefile
@@ -0,0 +1,7 @@
+all: main
+
+main: main.c
+	gcc -Wall -g -o main main.c
+
+clean:
+	rm -f main
diff --git a/Lab_13/main.c b/Lab_13/main.c
@@ -0,0 +1,62 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+void handle_sigchld(int sig)
+{
+    int status;
+    wait(&status);
+    printf("Received SIGCHLD\n");
+    printf("Total Time in Seconds: %d\n", WEXITSTATUS(status));
+}
+
+int main()
+{
+    int laps, lap_time;
+
+    printf("Enter Number of Laps: ");
+    scanf("%d", &laps);
+    while (laps < 1)
+    {
+        printf("Number of Laps must be greater than 0\n");
+        printf("Enter Number of Laps: ");
+        scanf("%d", &laps);
+    }
+    printf("Enter Lap Time: ");
+    scanf("%d", &lap_time);
+
+    while (lap_time < 1)
+    {
+        printf("Lap Time must be greater than 0\n");
+        printf("Enter Lap Time: ");
+        scanf("%d", &lap_time);
+    }
+
+    signal(SIGCHLD, handle_sigchld);
+
+    pid_t pid = fork();
+    if (pid == -1)
+    {
+        printf("Failed to fork\n");
+        return 1;
+    }
+    else if (pid == 0)
+    {
+        for (int i = 1; i <= laps; i++)
+        {
+            sleep(lap_time);
+            printf("Lap: %d Completed\n", i);
+        }
+        exit(laps * lap_time);
+    }
+    else
+    { // Parent process
+        // Parent waits for the signal (handled by the signal handler)
+        pause();
+    }
+
+    return 0;
+}