Function main

test/ringbuf-read.c:133–201

}

int main(int argc, char *argv[])
{
	char buf[BUF_SIZE];
	char fname[80];
	int ret, fd, i, do_unlink;

	if (argc > 1) {
		snprintf(fname, sizeof(fname), "%s", argv[1]);
		do_unlink = 0;
	} else {
		sprintf(fname, ".ringbuf-read.%d", getpid());
		t_create_file(fname, FSIZE);
		do_unlink = 1;
	}

	fd = open(fname, O_WRONLY);
	if (fd < 0) {
		if (errno == EPERM || errno == EACCES)
			return T_EXIT_SKIP;
		perror("open");
		goto err;
	}
	for (i = 0; i < NR_BUFS; i++) {
		memset(buf, i + 1, BUF_SIZE);
		ret = write(fd, buf, BUF_SIZE);
		if (ret != BUF_SIZE) {
			fprintf(stderr, "bad file prep write\n");
			close(fd);
			goto err;
		}
	}
	close(fd);

	ret = test(fname, 1, 0);
	if (ret == T_EXIT_FAIL) {
		fprintf(stderr, "dio test failed\n");
		goto err;
	}
	if (no_buf_ring)
		goto pass;

	ret = test(fname, 0, 0);
	if (ret) {
		fprintf(stderr, "buffered test failed\n");
		goto err;
	}

	ret = test(fname, 1, 1);
	if (ret == T_EXIT_FAIL) {
		fprintf(stderr, "dio async test failed\n");
		goto err;
	}

	ret = test(fname, 0, 1);
	if (ret == T_EXIT_FAIL) {
		fprintf(stderr, "buffered async test failed\n");
		goto err;
	}