Function thread_func

test/exit-no-cleanup.c:34–74

static sem_t sem;

static void *thread_func(void *arg)
{
	struct io_uring ring;
	int res;

	res = io_uring_queue_init(IORING_ENTRIES, &ring, 0);
	if (res)
		err(EXIT_FAILURE, "io_uring_queue_init failed");

	pthread_barrier_wait(&init_barrier);

	for(;;) {
		struct io_uring_cqe *cqe;
		struct io_uring_sqe *sqe;
		uint64_t buf;
		int res;

		sqe = io_uring_get_sqe(&ring);
		assert(sqe);

		io_uring_prep_read(sqe, sleep_fd, &buf, sizeof(buf), 0);

		res = io_uring_submit_and_wait(&ring, 1);
		if (res < 0)
			err(EXIT_FAILURE, "io_uring_submit_and_wait failed");

		res = io_uring_peek_cqe(&ring, &cqe);
		assert(!res);
		if (cqe->res < 0) {
			errno = -cqe->res;
			err(EXIT_FAILURE, "read failed");
		}
		assert(cqe->res == sizeof(buf));

		sem_post(&sem);

		io_uring_cqe_seen(&ring, cqe);
	}

	return NULL;
}

int main(int argc, char *argv[])
{