Function test_file

test/defer-tw-timeout.c:83–152

}

static int test_file(struct io_uring *ring, char *__fname)
{
	struct io_uring_cqe *cqe;
	struct io_uring_sqe *sqe;
	struct __kernel_timespec ts;
	char filename[64], *fname;
	int fd, ret, i;
	void *buf;

	if (!__fname) {
		fname = filename;
		sprintf(fname, ".defer-tw-timeout.%d", getpid());
		t_create_file(fname, 128*1024);
	} else {
		fname = __fname;
	}

	fd = open(fname, O_RDONLY | O_DIRECT);
	if (fd < 0) {
		if (errno == EINVAL || errno == EPERM || errno == EACCES) {
			if (!__fname)
				unlink(fname);
			return T_EXIT_SKIP;
		}
		perror("open");
		if (!__fname)
			unlink(fname);
		return T_EXIT_FAIL;
	}

	if (!__fname)
		unlink(fname);

	if (posix_memalign(&buf, 4096, 4096)) {
		close(fd);
		return T_EXIT_FAIL;
	}

	sqe = io_uring_get_sqe(ring);
	io_uring_prep_read(sqe, fd, buf, 4096, 0);

	ts.tv_sec = 1;
	ts.tv_nsec = 0;

	ret = io_uring_submit_and_wait_timeout(ring, &cqe, 2, &ts, NULL);
	if (ret != 1) {
		fprintf(stderr, "unexpected wait ret %d\n", ret);
		close(fd);
		free(buf);
		return T_EXIT_FAIL;
	}

	for (i = 0; i < 2; i++) {
		ret = io_uring_peek_cqe(ring, &cqe);
		if (ret)
			break;
		io_uring_cqe_seen(ring, cqe);
	}