//mutex/prodcons3.c
int
main(int argc, char **argv)
{
	int			i, nthreads, count[MAXNTHREADS];
	pthread_t	tid_produce[MAXNTHREADS], tid_consume;

	if (argc != 3)
		err_quit("usage: prodcons3 <#items> <#threads>");
	nitems = min(atoi(argv[1]), MAXNITEMS);
	nthreads = min(atoi(argv[2]), MAXNTHREADS);

		/*       */
	Set_concurrency(nthreads + 1);
	for (i = 0; i < nthreads; i++) {
		count[i] = 0;
		Pthread_create(&tid_produce[i], NULL, produce, &count[i]);
	}
	Pthread_create(&tid_consume, NULL, consume, NULL);

		/*      */
	for (i = 0; i < nthreads; i++) {
		Pthread_join(tid_produce[i], NULL);
		printf("count[%d] = %d\n", i, count[i]);	
	}
	Pthread_join(tid_consume, NULL);

	exit(0);
}
