/*
* main() simply parses command line arguments, then calls start_simulator().
* You will need to modify it to support the -r and -p command-line parameters.
*/
int main(int argc, char *argv[])
{
int cpu_count;
/* Parse command-line arguments */
if (argc != 2)
{
fprintf(stderr, "CS 425 Project 3 -- Multithreaded OS Simulator\n"
"Usage: ./os-sim <# CPUs> [ -r <time slice> ]\n"
" Default : FIFO Scheduler\n"
" -r : Round-Robin Scheduler\n");
return -1;
}
cpu_count = atoi(argv[1]);
/* FIX ME - Add support for -r and -p parameters*/
/* Allocate the current[] array and its mutex */
current = malloc(sizeof(pcb_t*) * cpu_count);
assert(current != NULL);
pthread_mutex_init(¤t_mutex, NULL);
/* Start the simulator in the library */
start_simulator(cpu_count);
return 0;
}
int main(int argc, char *argv[])
{
int timeout_interval, pkt_loss, garbled, debug_flags;
long event;
if (!parse_first_five_parameters(argc, argv, &event, &timeout_interval,
&pkt_loss, &garbled, &debug_flags)) {
printf ("Usage: p3 events timeout loss cksum debug\n");
exit(1);
}
printf("\n\n Simulating Protocol 3\n");
start_simulator(sender3, receiver3, event, timeout_interval, pkt_loss, garbled, debug_flags);
}
/*
* main() simply parses command line arguments, then calls start_simulator().
* You will need to modify it to support the -r and -p command-line parameters.
*/
int main(int argc, char *argv[])
{
int opt;
/* Parse command-line arguments */
if (argc > 5)
{
fprintf(stderr, "CS 2200 Project 4 -- Multithreaded OS Simulator\n"
"Usage: ./os-sim <# CPUs> [ -r <time slice> | -p ]\n"
" Default : FIFO Scheduler\n"
" -r : Round-Robin Scheduler\n"
" -p : Static Priority Scheduler\n\n");
return -1;
}
cpu_count = atoi(argv[1]);
// parse cmd line options
while ((opt = getopt(argc, argv, "r:p")) != -1) {
switch (opt) {
case 'r':
use_round_robin = 1;
time_slice = strtol(optarg, NULL, 10);
break;
case 'p':
use_priority = 1;
break;
default:
break;
}
}
/* Allocate the current[] array and its mutex */
current = malloc(sizeof(pcb_t*) * cpu_count);
assert(current != NULL);
// allocate space for locks and condition vars
current_mutex = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t));
ready_q_mutex = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t));
idle_cond = (pthread_cond_t *) malloc(sizeof(pthread_cond_t));
// initalize locks and cond vars
pthread_mutex_init(current_mutex, NULL);
pthread_mutex_init(ready_q_mutex, NULL);
pthread_cond_init(idle_cond, NULL);
/* Start the simulator in the library */
start_simulator(cpu_count);
return 0;
}
/*
* main() parses command line arguments, initializes globals, and starts
* simulation
*/
int main(int argc, char* argv[]) {
/* Parse command line args - must include num_cpus as first, rest optional
* Default is to simulate using just FIFO on given num cpus, if 2nd arg given:
* if -r, use round robin to schedule (must be 3rd arg of time_slice)
* if -p, use static priority to schedule
*/
if (argc == 2) {
alg = FIFO;
printf("running with basic FIFO\n");
} else if (argc > 2 && strcmp(argv[2], "-r") == 0 && argc > 3) {
alg = RoundRobin;
time_slice = atoi(argv[3]);
printf("running with round robin, time slice = %d\n", time_slice);
} else if (argc > 2 && strcmp(argv[2], "-p") == 0) {
alg = StaticPriority;
printf("running with static priority\n");
} else {
fprintf(stderr,
"Usage: ./os-sim <# CPUs> [ -r <time slice> | -p ]\n"
" Default : FIFO Scheduler\n"
" -r : Round-Robin Scheduler (must also give time slice)\n"
" -p : Static Priority Scheduler\n\n");
return -1;
}
fflush(stdout);
/* atoi converts string to integer */
cpu_count = atoi(argv[1]);
/* Allocate the current[] array and its mutex */
current = malloc(sizeof(pcb_t*) * cpu_count);
int i;
for (i = 0; i < cpu_count; i++) {
current[i] = NULL;
}
assert(current != NULL);
pthread_mutex_init(¤t_mutex, NULL);
/* Initialize other necessary synch constructs */
pthread_mutex_init(&ready_mutex, NULL);
pthread_cond_init(&ready_empty, NULL);
/* Start the simulator in the library */
printf("starting simulator\n");
fflush(stdout);
start_simulator(cpu_count);
return 0;
}
main (int argc, char *argv[])
{
int timeout_interval, pkt_loss, garbled, debug_flags;
long event;
if (!parse_first_five_parameters(argc, argv, &event, &timeout_interval,
&pkt_loss, &garbled, &debug_flags)) {
printf ("Usage: p6 events timeout loss cksum debug\n");
exit(1);
}
init_max_seqnr(MAX_SEQ + 1);
printf("\n\n Simulating Protocol 6\n");
start_simulator(protocol6, protocol6, event, timeout_interval, pkt_loss, garbled, debug_flags);
}