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MINOR: log: provide a function to emit a log for a session

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The new function sess_log() only needs a session to emit a log. It will
ignore the parts that depend on the stream. It is usable to emit a log
to report early errors in muxes. These ones will typically mention
"<BADREQ>" for the request and 0 for the HTTP status code.
This commit is contained in:
Willy Tarreau 2018-09-05 19:51:10 +02:00
parent 09bb27cdea
commit 5383935856
2 changed files with 34 additions and 0 deletions
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1
include/proto/log.h
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@ -78,6 +78,7 @@ static inline int build_logline(struct stream *s, char *dst, size_t maxsize, str
* Will not log if the frontend has no log defined.
*/
void strm_log(struct stream *s);
void sess_log(struct session *sess);
/*
* add to the logformat linked list

33
src/log.c
View File

@ -2620,6 +2620,39 @@ void strm_log(struct stream *s)
}
}
/*
* send a minimalist log for the session. Will not log if the frontend has no
* log defined. It is assumed that this is only used to report anomalies that
* cannot lead to the creation of a regular stream. Because of this the log
* level is LOG_INFO or LOG_ERR depending on the "log-separate-error" setting
* in the frontend. The caller must simply know that it should not call this
* function to report unimportant events.
*/
void sess_log(struct session *sess)
{
int size, level;
int sd_size = 0;
if (LIST_ISEMPTY(&sess->fe->logsrvs))
return;
level = LOG_INFO;
if (sess->fe->options2 & PR_O2_LOGERRORS)
level = LOG_ERR;
if (!LIST_ISEMPTY(&sess->fe->logformat_sd)) {
sd_size = sess_build_logline(sess, NULL,
logline_rfc5424, global.max_syslog_len,
&sess->fe->logformat_sd);
}
size = sess_build_logline(sess, NULL, logline, global.max_syslog_len, &sess->fe->logformat);
if (size > 0) {
HA_ATOMIC_ADD(&sess->fe->log_count, 1);
__send_log(sess->fe, level, logline, size + 1, logline_rfc5424, sd_size);
}
}
static int cli_io_handler_show_startup_logs(struct appctx *appctx)
{
struct stream_interface *si = appctx->owner;