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