mirror of
https://github.com/haproxy/haproxy.git
synced 2026-02-03 20:39:41 -05:00
8f24023ba0
The principle is that when emitting a message, if some dropped events were logged, we first attempt to report this counter before going further. This is done under an exclusive lock while all logs are produced under a shared lock. This ensures that the dropped line is accurately reported and doesn't accidently arrive after a later event.
77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
/*
|
|
* include/types/sink.h
|
|
* This file provides definitions for event sinks
|
|
*
|
|
* Copyright (C) 2000-2019 Willy Tarreau - w@1wt.eu
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation, version 2.1
|
|
* exclusively.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _TYPES_SINK_H
|
|
#define _TYPES_SINK_H
|
|
|
|
#include <common/buffer.h>
|
|
#include <common/compat.h>
|
|
#include <common/config.h>
|
|
#include <common/ist.h>
|
|
|
|
/* A sink may be of 4 distinct types :
|
|
* - file descriptor (such as stdout)
|
|
* - ring buffer, readable from CLI
|
|
*/
|
|
enum sink_type {
|
|
SINK_TYPE_NEW, // not yet initialized
|
|
SINK_TYPE_FD, // events sent to a file descriptor
|
|
SINK_TYPE_BUFFER, // events sent to a ring buffer
|
|
};
|
|
|
|
/* This indicates the default event format, which is the destination's
|
|
* preferred format, but may be overridden by the source.
|
|
*/
|
|
enum sink_fmt {
|
|
SINK_FMT_RAW, // raw text sent as-is
|
|
SINK_FMT_SHORT, // raw text prefixed with a syslog level
|
|
SINK_FMT_ISO, // raw text prefixed with ISO time
|
|
SINK_FMT_TIMED, // syslog level then ISO
|
|
SINK_FMT_RFC3164, // regular syslog
|
|
SINK_FMT_RFC5424, // extended syslog
|
|
};
|
|
|
|
/* describes the configuration and current state of an event sink */
|
|
struct sink {
|
|
struct list sink_list; // position in the sink list
|
|
const char *name; // sink name
|
|
const char *desc; // sink description
|
|
enum sink_fmt fmt; // format expected by the sink
|
|
enum sink_type type; // type of storage
|
|
uint8_t syslog_facility; // used by syslog format
|
|
uint8_t syslog_minlvl; // used by syslog & short formats
|
|
uint32_t maxlen; // max message length (truncated above)
|
|
struct {
|
|
__decl_hathreads(HA_RWLOCK_T lock); // shared/excl for dropped
|
|
struct ring *ring; // used by ring buffer and STRM sender
|
|
unsigned int dropped; // dropped events since last one.
|
|
int fd; // fd num for FD type sink
|
|
} ctx;
|
|
};
|
|
|
|
#endif /* _TYPES_SINK_H */
|
|
|
|
/*
|
|
* Local variables:
|
|
* c-indent-level: 8
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|