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Be more descriptive about poll error / timeout when transmitting.

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This commit is contained in:
Ed Maste 2012-08-08 19:15:01 +00:00
parent 94dff77179
commit e5ecae38fc
1 changed files with 8 additions and 3 deletions
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11
tools/tools/netmap/pkt-gen.c
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@ -468,13 +468,14 @@ static void *
sender_body(void *data)
{
struct targ *targ = (struct targ *) data;
struct pollfd fds[1];
struct netmap_if *nifp = targ->nifp;
struct netmap_ring *txring;
int i, pkts_per_td = targ->g->npackets / targ->g->nthreads, sent = 0;
int continuous = 0;
int options = targ->g->options | OPT_COPY;
int retval;
D("start");
if (pkts_per_td == 0) {
continuous = 1;
@ -508,10 +509,14 @@ D("start");
/*
* wait for available room in the send queue(s)
*/
if (poll(fds, 1, 2000) <= 0) {
if ((retval = poll(fds, 1, 2000)) <= 0) {
if (targ->cancel)
break;
D("poll error/timeout on queue %d\n", targ->me);
if (retval == 0)
D("poll timeout on queue %d\n", targ->me);
else
D("poll error on queue %d: %s\n", targ->me,
strerror(errno));
goto quit;
}
/*