static void
test_tflush (void)
{
Npfcall *fc, *fc2;
if (!(fc = np_create_tflush (1)))
msg_exit ("out of memory in %s", __FUNCTION__);
fc2 = _rcv_buf (fc, P9_TFLUSH, __FUNCTION__);
assert (fc->u.tflush.oldtag == fc2->u.tflush.oldtag);
free (fc);
free (fc2);
}
static void
_flush_series (Npcfsys *fs, Npcfid *root)
{
Npfcall *rc = NULL, *tc = NULL, *ac = NULL;
u16 tag, flushtag;
int n, i;
struct sigaction sa;
assert (fs->trans != NULL);
sa.sa_flags = 0;
sigemptyset(&sa.sa_mask);
sa.sa_handler = _alarm_clock;
if (sigaction (SIGALRM, &sa, NULL) < 0)
err_exit ("sigaction");
/* write 100 tversions */
for (i = 0; i < 100; i++) {
if (!(tc = np_create_tversion (fs->msize, "9P2000.L")))
msg_exit ("out of memory");
flushtag = tag = npc_get_id(fs->tagpool);
np_set_tag(tc, tag);
n = np_trans_write(fs->trans, tc->pkt, tc->size);
if (n < 0)
errn_exit (np_rerror (), "np_trans_write");
if (n != tc->size)
msg_exit ("np_trans_write came up unexpectedly short");
//msg ("sent tversion tag %d", tc->tag);
free(tc);
}
msg ("sent 100 tversions");
/* flush the most recent */
if (!(ac = np_create_tflush (flushtag)))
msg_exit ("out of memory");
tag = npc_get_id(fs->tagpool);
np_set_tag(ac, tag);
n = np_trans_write(fs->trans, ac->pkt, ac->size);
if (n < 0)
errn_exit (np_rerror (), "np_trans_write");
if (n != ac->size)
msg_exit ("np_trans_write came up unexpectedly short");
//msg ("sent tflush tag %d (flushing tag %d)", ac->tag, flushtag);
free (ac);
msg ("sent 1 tflush");
/* receive up to 101 responses with 1s timeout */
for (i = 0; i < 101; i++) {
if (!(rc = malloc(sizeof(*rc) + fs->msize)))
msg_exit ("out of memory");
rc->pkt = (u8*)rc + sizeof(*rc);
alarm (1);
n = np_trans_read(fs->trans, rc->pkt, fs->msize);
if (n < 0) {
if (errno == EINTR)
break;
errn_exit (np_rerror (), "np_trans_read");
}
alarm (0);
if (n == 0)
msg_exit ("np_trans_read: unexpected EOF");
if (!np_deserialize (rc, rc->pkt))
msg_exit ("failed to deserialize response in one go");
//msg ("received tag %d", rc->tag);
free(rc);
//npc_put_id(fs->tagpool, rc->tag);
}
if (i == 100 || i == 101)
msg ("received 100/101 respones");
else
msg ("received %d responses", i);
}
