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iscsi_which_events: do not set POLLOUT if context is corked

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if the socket is corked we otherwise set POLLOUT and then
do not sent. Depending on the event loop implementation this
can result in a busy wait.

Signed-off-by: Peter Lieven <pl@kamp.de>
This commit is contained in:
Peter Lieven
2014-07-14 08:02:24 +02:00
parent 6285ba72b7
commit 4b3f4b5822
1 changed files with 4 additions and 2 deletions
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6
lib/socket.c
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@@ -383,8 +383,10 @@ iscsi_which_events(struct iscsi_context *iscsi)
{
int events = iscsi->is_connected ? POLLIN : POLLOUT;
if (iscsi->outqueue_current != NULL || (iscsi->outqueue != NULL && iscsi_serial32_compare(iscsi->outqueue->cmdsn, iscsi->maxcmdsn) <= 0)) {
events |= POLLOUT;
if (iscsi->outqueue_current != NULL ||
(iscsi->outqueue != NULL && !iscsi->is_corked &&
iscsi_serial32_compare(iscsi->outqueue->cmdsn, iscsi->maxcmdsn) <= 0)) {
events |= POLLOUT;
}
return events;
}