sammler/p_rtstat.c

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/***************************************************************************
* Copyright (C) 06/2006 by Olaf Rempel *
* razzor@kopf-tisch.de *
* *
* This program 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 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "plugins.h"
#define BUFSIZE 1024
struct sammler_plugin plugin;
static char *ds_def[] = {
"DS:entries:GAUGE:%d:0:U",
"DS:in_hit:DERIVE:%d:0:U",
"DS:in_slow_tot:DERIVE:%d:0:U",
"DS:in_slow_mc:DERIVE:%d:0:U",
"DS:in_no_route:DERIVE:%d:0:U",
"DS:in_brd:DERIVE:%d:0:U",
"DS:in_martian_dst:DERIVE:%d:0:U",
"DS:in_martian_src:DERIVE:%d:0:U",
"DS:out_hit:DERIVE:%d:0:U",
"DS:out_slow_tot:DERIVE:%d:0:U",
"DS:out_slow_mc:DERIVE:%d:0:U",
"DS:gc_total:DERIVE:%d:0:U",
"DS:gc_ignored:DERIVE:%d:0:U",
"DS:gc_goal_miss:DERIVE:%d:0:U",
"DS:gc_dst_overflow:DERIVE:%d:0:U",
"DS:in_hlist_search:DERIVE:%d:0:U",
"DS:out_hlist_search:DERIVE:%d:0:U",
NULL
};
static char ** get_ds(int ds_id)
{
return ds_def;
}
static void probe(void)
{
FILE *fp;
char *buffer, *val[17], filename[16];
unsigned long long arr[17];
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int i, len, cpu = 0;
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buffer = malloc(BUFSIZE);
if (buffer == NULL) {
log_print(LOG_WARN, "plugin rtstat: out of memory");
return;
}
fp = fopen("/proc/net/stat/rt_cache", "r");
if (fp == NULL) {
log_print(LOG_WARN, "plugin rtstat");
free(buffer);
return;
}
while (fgets(buffer, BUFSIZE, fp) != NULL) {
if (!strncmp(buffer, "entries", 7))
continue;
if (strsplit(buffer, val, 17) != 17)
continue;
for (i = 0; i < 17; i++)
arr[i] = strtoll(val[i], NULL, 16);
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len = snprintf(filename, sizeof(filename), "rtstat-%d.rrd", cpu);
if (len < 0 || len >= sizeof(filename))
continue;
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probe_submit(&plugin, filename, 0,
"%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu",
arr[0], arr[1], arr[2], arr[3],
arr[4], arr[5], arr[6], arr[7],
arr[8], arr[9], arr[10], arr[11],
arr[12], arr[13], arr[14], arr[15],
arr[16]);
cpu++;
}
fclose(fp);
free(buffer);
}
struct sammler_plugin plugin = {
.name = "rtstat",
.version = 1,
.probe = &probe,
.get_ds = &get_ds,
};