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/* immark.c
* This is the implementation of the build-in mark message input module.
*
* NOTE: read comments in module-template.h to understand how this file
* works!
*
* File begun on 2007-07-20 by RGerhards (extracted from syslogd.c)
* This file is under development and has not yet arrived at being fully
* self-contained and a real object. So far, it is mostly an excerpt
* of the "old" message code without any modifications. However, it
* helps to have things at the right place one we go to the meat of it.
*
* Copyright 2007 Rainer Gerhards and Adiscon GmbH.
*
* This file is part of rsyslog.
*
* Rsyslog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rsyslog 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Rsyslog. If not, see <http://www.gnu.org/licenses/>.
*
* A copy of the GPL can be found in the file "COPYING" in this distribution.
*/
#include "config.h"
#include "rsyslog.h"
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include <signal.h>
#include <string.h>
#include <pthread.h>
#include "dirty.h"
#include "cfsysline.h"
#include "module-template.h"
#include "errmsg.h"
#include "msg.h"
MODULE_TYPE_INPUT
/* defines */
#define DEFAULT_MARK_PERIOD (20 * 60)
/* Module static data */
DEF_IMOD_STATIC_DATA
static int iMarkMessagePeriod = DEFAULT_MARK_PERIOD;
/* This function is called to gather input. It must terminate only
* a) on failure (iRet set accordingly)
* b) on termination of the input module (as part of the unload process)
* Code begun 2007-12-12 rgerhards
*
* This code must simply spawn emit a mark message at each mark interval.
* We are running on our own thread, so this is extremely easy: we just
* sleep MarkInterval seconds and each time we awake, we inject the message.
* Please note that we do not do the other fancy things that sysklogd
* (and pre 1.20.2 releases of rsyslog) did in mark procesing. They simply
* do not belong here.
*/
BEGINrunInput
CODESTARTrunInput
/* this is an endless loop - it is terminated when the thread is
* signalled to do so. This, however, is handled by the framework,
* right into the sleep below.
*/
while(1) {
/* we do not need to handle the RS_RET_TERMINATE_NOW case any
* special because we just need to terminate. This may be different
* if a cleanup is needed. But for now, we can just use CHKiRet().
* rgerhards, 2007-12-17
*/
CHKiRet(thrdSleep(pThrd, iMarkMessagePeriod, 0)); /* seconds, micro seconds */
logmsgInternal(NO_ERRCODE, LOG_INFO, (uchar*)"-- MARK --", MARK);
}
finalize_it:
return iRet;
ENDrunInput
BEGINwillRun
CODESTARTwillRun
/* We set the global MarkInterval to what is configured here -- rgerhards, 2008-07-15 */
MarkInterval = iMarkMessagePeriod;
if(iMarkMessagePeriod == 0)
iRet = RS_RET_NO_RUN;
ENDwillRun
BEGINafterRun
CODESTARTafterRun
ENDafterRun
BEGINmodExit
CODESTARTmodExit
ENDmodExit
BEGINqueryEtryPt
CODESTARTqueryEtryPt
CODEqueryEtryPt_STD_IMOD_QUERIES
ENDqueryEtryPt
static rsRetVal resetConfigVariables(uchar __attribute__((unused)) *pp, void __attribute__((unused)) *pVal)
{
iMarkMessagePeriod = DEFAULT_MARK_PERIOD;
return RS_RET_OK;
}
BEGINmodInit()
CODESTARTmodInit
*ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */
CODEmodInit_QueryRegCFSLineHdlr
CHKiRet(omsdRegCFSLineHdlr((uchar *)"markmessageperiod", 0, eCmdHdlrInt, NULL, &iMarkMessagePeriod, STD_LOADABLE_MODULE_ID));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"resetconfigvariables", 1, eCmdHdlrCustomHandler, resetConfigVariables, NULL, STD_LOADABLE_MODULE_ID));
ENDmodInit
/*
* vi:set ai:
*/
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