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973e662fe8
This is the most basic type of sink. It pre-registers "stdout" and "stderr", and is able to use writev() on them. The writev() operation is locked to avoid mixing outputs. It's likely that the registration should move somewhere else to take into account the fact that stdout and stderr are still opened or are closed.
74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/*
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* include/types/sink.h
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* This file provides definitions for event sinks
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*
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* Copyright (C) 2000-2019 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _TYPES_SINK_H
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#define _TYPES_SINK_H
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#include <common/buffer.h>
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#include <common/compat.h>
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#include <common/config.h>
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#include <common/ist.h>
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/* A sink may be of several types. For now the following types are supported:
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* - file descriptor (such as stdout)
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*/
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enum sink_type {
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SINK_TYPE_NEW, // not yet initialized
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SINK_TYPE_FD, // events sent to a file descriptor
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};
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/* This indicates the default event format, which is the destination's
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* preferred format, but may be overridden by the source.
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*/
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enum sink_fmt {
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SINK_FMT_RAW, // raw text sent as-is
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SINK_FMT_SHORT, // raw text prefixed with a syslog level
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SINK_FMT_ISO, // raw text prefixed with ISO time
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SINK_FMT_TIMED, // syslog level then ISO
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SINK_FMT_RFC3164, // regular syslog
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SINK_FMT_RFC5424, // extended syslog
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};
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/* describes the configuration and current state of an event sink */
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struct sink {
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struct list sink_list; // position in the sink list
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const char *name; // sink name
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const char *desc; // sink description
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enum sink_fmt fmt; // format expected by the sink
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enum sink_type type; // type of storage
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uint8_t syslog_facility; // used by syslog format
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uint8_t syslog_minlvl; // used by syslog & short formats
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uint32_t maxlen; // max message length (truncated above)
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struct {
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unsigned int dropped; // dropped events since last one.
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__decl_hathreads(HA_RWLOCK_T lock); // used by some types
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int fd; // fd num for FD type sink
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} ctx;
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};
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#endif /* _TYPES_SINK_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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