صفحه نخست | سیستم وبلاگ | در مورد من | twitter

اگر تابع اصلی pthread_exit کند threadها تمام نمی‌شوند!

#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <err.h>
#include <string.h>
#include <unistd.h>

struct {
	int idx;
	pthread_t tid;
} *thread;

void * __attribute__((noreturn))
exitEN(int e, char *str)
{
	if (str != NULL)
		fprintf(stderr, "%s: ", str);

	fprintf(stderr, "%s\n", strerror(e));
	
	exit(e);
}

void *
threadFunc(void *arg)
{
	int i = (*(int *) arg);

	for (;;) {
		printf("thread %0*d\n", i, i);
		sleep(2);
	}
}

int
main(int argc, char *argv[])
{
	int count, i, s;

	if (argc != 2) {
		fprintf(stderr, "usage: %s number-of-threads\n", argv[0]);
		exit(EXIT_FAILURE);
	}

	count = atoi(argv[1]);
	if (count < 1)
		errx(EXIT_FAILURE, "number-of-thread must be greater than 0");

	thread = calloc(count, sizeof(*thread));
	if (thread == NULL)
		err(EXIT_FAILURE, "calloc");

	for (i = 0; i < count; i++) {
		thread[i].idx = i + 1;
		s = pthread_create(&thread[i].tid, NULL, threadFunc, &thread[i].idx);
		if (s != 0)
			exitEN(s, "pthread_create");
	}

	pthread_exit(EXIT_SUCCESS);
}

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