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19 * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
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46 main (int argc
, char *argv
[])
48 struct nbd_handle
*nbd
;
50 time_t start_t
, end_t
;
55 fprintf (stderr
, "%s\n", nbd_get_error ());
59 if (nbd_connect_command (nbd
,
61 "nbdkit", "-s", "--exit-with-parent",
64 "wdelay=10", NULL
}) == -1) {
65 fprintf (stderr
, "%s\n", nbd_get_error ());
69 /* Reads should work as normal. Do lots of small reads here so
70 * we will notice if they are being delayed.
72 for (i
= 0; i
< 100; ++i
) {
73 if (nbd_pread (nbd
, data
, sizeof data
, 51200-512*i
, 0) == -1) {
74 fprintf (stderr
, "%s\n", nbd_get_error ());
79 /* Writes should be delayed by >= 10 seconds. */
81 if (nbd_pwrite (nbd
, "hello", 5, 100000, 0) == -1) {
82 fprintf (stderr
, "%s\n", nbd_get_error ());
87 if (end_t
- start_t
< 10) {
88 fprintf (stderr
, "%s FAILED: no write delay detected\n", argv
[0]);