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[MEDIUM] use buffer->wex instead of buffer->cex for connect timeout

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It's a shame not to use buffer->wex for connection timeouts since by
definition it cannot be used till the connection is not established.
Using it instead of ->cex also makes the buffer processing more
symmetric.
This commit is contained in:
Willy Tarreau 2008-08-17 12:11:14 +02:00
parent dafde43410
commit 26ed74dadc
5 changed files with 22 additions and 27 deletions
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3
include/types/buffers.h
View File

@ -66,8 +66,7 @@ struct chunk {
struct buffer {
unsigned int flags; /* BF_* */
int rex; /* expiration date for a read, in ticks */
int wex; /* expiration date for a write, in ticks */
int cex; /* expiration date for a connect, in ticks */
int wex; /* expiration date for a write or connect, in ticks */
int rto; /* read timeout, in ticks */
int wto; /* write timeout, in ticks */
int cto; /* connect timeout, in ticks */

14
src/backend.c
View File

@ -1826,7 +1826,7 @@ int connect_server(struct session *s)
s->be->lbprm.server_take_conn(s->srv);
}
s->req->cex = tick_add_ifset(now_ms, s->be->timeout.connect);
s->req->wex = tick_add_ifset(now_ms, s->be->timeout.connect);
return SN_ERR_NONE; /* connection is OK */
}
@ -1844,7 +1844,7 @@ int srv_count_retry_down(struct session *t, int conn_err)
if (t->conn_retries < 0) {
/* if not retryable anymore, let's abort */
t->req->cex = TICK_ETERNITY;
t->req->wex = TICK_ETERNITY;
srv_close_with_err(t, conn_err, SN_FINST_C,
503, error_message(t, HTTP_ERR_503));
if (t->srv)
@ -1888,7 +1888,7 @@ int srv_retryable_connect(struct session *t)
return 1;
case SN_ERR_INTERNAL:
t->req->cex = TICK_ETERNITY;
t->req->wex = TICK_ETERNITY;
srv_close_with_err(t, SN_ERR_INTERNAL, SN_FINST_C,
500, error_message(t, HTTP_ERR_500));
if (t->srv)
@ -1959,7 +1959,7 @@ int srv_redispatch_connect(struct session *t)
goto redispatch;
}
t->req->cex = TICK_ETERNITY;
t->req->wex = TICK_ETERNITY;
srv_close_with_err(t, SN_ERR_SRVTO, SN_FINST_Q,
503, error_message(t, HTTP_ERR_503));
@ -1969,7 +1969,7 @@ int srv_redispatch_connect(struct session *t)
case SRV_STATUS_NOSRV:
/* note: it is guaranteed that t->srv == NULL here */
t->req->cex = TICK_ETERNITY;
t->req->wex = TICK_ETERNITY;
srv_close_with_err(t, SN_ERR_SRVTO, SN_FINST_C,
503, error_message(t, HTTP_ERR_503));
@ -1977,14 +1977,14 @@ int srv_redispatch_connect(struct session *t)
return 1;
case SRV_STATUS_QUEUED:
t->req->cex = tick_add_ifset(now_ms, t->be->timeout.queue);
t->req->wex = tick_add_ifset(now_ms, t->be->timeout.queue);
t->srv_state = SV_STIDLE;
/* do nothing else and do not wake any other session up */
return 1;
case SRV_STATUS_INTERNAL:
default:
t->req->cex = TICK_ETERNITY;
t->req->wex = TICK_ETERNITY;
srv_close_with_err(t, SN_ERR_INTERNAL, SN_FINST_C,
500, error_message(t, HTTP_ERR_500));
if (t->srv)

1
src/client.c
View File

@ -354,7 +354,6 @@ int event_accept(int fd) {
s->req->rex = TICK_ETERNITY;
s->req->wex = TICK_ETERNITY;
s->req->cex = TICK_ETERNITY;
s->rep->rex = TICK_ETERNITY;
s->rep->wex = TICK_ETERNITY;
s->txn.exp = TICK_ETERNITY;

29
src/proto_http.c
View File

@ -745,12 +745,11 @@ void process_session(struct task *t, int *next)
*/
if ((s->rep->flags & (BF_MAY_FORWARD|BF_SHUTR)) == 0 &&
(tick_isset(s->req->cex) || tick_isset(s->req->wex) || tick_isset(s->rep->rex)))
(tick_isset(s->req->wex) || tick_isset(s->rep->rex)))
s->req->rex = TICK_ETERNITY;
t->expire = tick_first(tick_first(s->req->rex, s->req->wex),
tick_first(s->rep->rex, s->rep->wex));
t->expire = tick_first(t->expire, s->req->cex);
if (s->analysis & AN_REQ_ANY) {
if (s->analysis & AN_REQ_INSPECT)
t->expire = tick_first(t->expire, s->inspect_exp);
@ -2472,9 +2471,9 @@ int process_request(struct session *t)
/* flush the request so that we can drop the connection early
* if the client closes first.
*/
req->cex = tick_add_ifset(now_ms, t->be->timeout.tarpit);
if (!req->cex)
req->cex = now_ms;
req->wex = tick_add_ifset(now_ms, t->be->timeout.tarpit);
if (!req->wex)
req->wex = now_ms;
}
/* OK let's go on with the BODY now */
@ -3276,7 +3275,7 @@ int process_srv(struct session *t)
if ((rep->flags & BF_SHUTW) ||
((req->flags & BF_SHUTR) &&
(req->flags & BF_EMPTY || t->be->options & PR_O_ABRT_CLOSE))) { /* give up */
req->cex = TICK_ETERNITY;
req->wex = TICK_ETERNITY;
if (t->pend_pos)
t->logs.t_queue = tv_ms_elapsed(&t->logs.tv_accept, &now);
/* note that this must not return any error because it would be able to
@ -3297,7 +3296,7 @@ int process_srv(struct session *t)
* already set the connect expiration date to the right
* timeout. We just have to check that it has not expired.
*/
if (!tick_is_expired(req->cex, now_ms))
if (!tick_is_expired(req->wex, now_ms))
return 0;
/* We will set the queue timer to the time spent, just for
@ -3306,7 +3305,7 @@ int process_srv(struct session *t)
* It will not cause trouble to the logs because we can exclude
* the tarpitted connections by filtering on the 'PT' status flags.
*/
req->cex = TICK_ETERNITY;
req->wex = TICK_ETERNITY;
t->logs.t_queue = tv_ms_elapsed(&t->logs.tv_accept, &now);
srv_close_with_err(t, SN_ERR_PRXCOND, SN_FINST_T,
500, error_message(t, HTTP_ERR_500));
@ -3320,11 +3319,11 @@ int process_srv(struct session *t)
* to any other session to release it and wake us up again.
*/
if (t->pend_pos) {
if (!tick_is_expired(req->cex, now_ms)) {
if (!tick_is_expired(req->wex, now_ms)) {
return 0;
} else {
/* we've been waiting too long here */
req->cex = TICK_ETERNITY;
req->wex = TICK_ETERNITY;
t->logs.t_queue = tv_ms_elapsed(&t->logs.tv_accept, &now);
srv_close_with_err(t, SN_ERR_SRVTO, SN_FINST_Q,
503, error_message(t, HTTP_ERR_503));
@ -3415,7 +3414,7 @@ int process_srv(struct session *t)
((req->flags & BF_SHUTR) &&
((req->flags & BF_EMPTY && !(req->flags & BF_WRITE_STATUS)) ||
t->be->options & PR_O_ABRT_CLOSE))) { /* give up */
req->cex = TICK_ETERNITY;
req->wex = TICK_ETERNITY;
if (!(t->flags & SN_CONN_TAR)) {
/* if we are in turn-around, we have already closed the FD */
fd_delete(t->srv_fd);
@ -3432,14 +3431,14 @@ int process_srv(struct session *t)
trace_term(t, TT_HTTP_SRV_5);
goto update_state;
}
if (!(req->flags & BF_WRITE_STATUS) && !tick_is_expired(req->cex, now_ms)) {
if (!(req->flags & BF_WRITE_STATUS) && !tick_is_expired(req->wex, now_ms)) {
return 0; /* nothing changed */
}
else if (!(req->flags & BF_WRITE_STATUS) || (req->flags & BF_WRITE_ERROR)) {
/* timeout, asynchronous connect error or first write error */
if (t->flags & SN_CONN_TAR) {
/* We are doing a turn-around waiting for a new connection attempt. */
if (!tick_is_expired(req->cex, now_ms))
if (!tick_is_expired(req->wex, now_ms))
return 0;
t->flags &= ~SN_CONN_TAR;
}
@ -3468,7 +3467,7 @@ int process_srv(struct session *t)
* time of 1 second. We will wait in the previous if block.
*/
t->flags |= SN_CONN_TAR;
req->cex = tick_add(now_ms, MS_TO_TICKS(1000));
req->wex = tick_add(now_ms, MS_TO_TICKS(1000));
return 0;
}
}
@ -3565,7 +3564,7 @@ int process_srv(struct session *t)
t->srv_state = SV_STDATA;
if (!(t->analysis & AN_RTR_ANY))
t->rep->flags |= BF_MAY_FORWARD;
req->cex = TICK_ETERNITY;
req->wex = TICK_ETERNITY;
goto update_state;
} /* else no error or write 0 */
}

2
src/proto_uxst.c
View File

@ -497,7 +497,6 @@ int uxst_event_accept(int fd) {
s->req->rex = TICK_ETERNITY;
s->req->wex = TICK_ETERNITY;
s->req->cex = TICK_ETERNITY;
s->rep->rex = TICK_ETERNITY;
s->rep->wex = TICK_ETERNITY;
@ -1460,7 +1459,6 @@ void process_uxst_stats(struct task *t, int *next)
t->expire = tick_first(tick_first(s->req->rex, s->req->wex),
tick_first(s->rep->rex, s->rep->wex));
t->expire = tick_first(t->expire, s->req->cex);
/* restore t to its place in the task list */
task_queue(t);