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[MEDIUM] session: account per-listener connections

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In order to merge the unix session handling code, we have to maintain
the number of per-listener connections in the session. This was only
performed for unix sockets till now.
This commit is contained in:
Willy Tarreau 2009-08-16 18:20:44 +02:00
parent 89a6313c34
commit 6e6fb2beb9
2 changed files with 23 additions and 0 deletions
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16
src/client.c
View File

@ -108,6 +108,16 @@ int event_accept(int fd) {
}
}
if (l->nbconn >= l->maxconn) {
/* too many connections, we shoot this one and return.
* FIXME: it would be better to simply switch the listener's
* state to LI_FULL and disable the FD. We could re-enable
* it upon fd_delete(), but this requires all protocols to
* be switched.
*/
goto out_close;
}
if ((s = pool_alloc2(pool2_session)) == NULL) { /* disable this proxy for a while */
Alert("out of memory in event_accept().\n");
EV_FD_CLR(fd, DIR_RD);
@ -458,6 +468,12 @@ int event_accept(int fd) {
*/
task_wakeup(t, TASK_WOKEN_INIT);
l->nbconn++; /* warning! right now, it's up to the handler to decrease this */
if (l->nbconn >= l->maxconn) {
EV_FD_CLR(l->fd, DIR_RD);
l->state = LI_FULL;
}
p->feconn++; /* beconn will be increased later */
if (p->feconn > p->feconn_max)
p->feconn_max = p->feconn;

7
src/session.c
View File

@ -1206,6 +1206,13 @@ resync_stream_interface:
if (s->flags & SN_BE_ASSIGNED)
s->be->beconn--;
actconn--;
s->listener->nbconn--;
if (s->listener->state == LI_FULL &&
s->listener->nbconn < s->listener->maxconn) {
/* we should reactivate the listener */
EV_FD_SET(s->listener->fd, DIR_RD);
s->listener->state = LI_READY;
}
if (unlikely((global.mode & MODE_DEBUG) &&
(!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)))) {