Cleanup of shared memory and semaphores

supervisor.c

@@ -89,5 +89,25 @@ int main(int argc, char *argv[])
 
 	}
 
+	shared->quit = 1;
+
+	if (munmap(shared, sizeof(*shared)) == -1) {
+		perror("munmap");
+		exit(EXIT_FAILURE);
+	}
+
+	close(shmfd);
+
+	if (shm_unlink(SHM_NAME) == -1) {
+		perror("shm_unlink");
+		exit(EXIT_FAILURE);
+	}
+
+	sem_close(sUsedSpace);
+	sem_close(sFreeSpace);
+
+	sem_unlink(SEM_USED_SPACE);
+	sem_unlink(SEM_FREE_SPACE);
+
 	return 0;
 }