155 lines
3.9 KiB
C
155 lines
3.9 KiB
C
/***************************************************************************
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* Copyright (C) 06/2006 by Olaf Rempel *
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* razzor@kopf-tisch.de *
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* *
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* This program 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 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program 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 this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "helper.h"
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#include "logging.h"
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#include "plugins.h"
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#include "probe.h"
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#define DS_CPU 1
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#define DS_PROC 2
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#define BUFSIZE 1024
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struct sammler_plugin plugin;
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static char *buffer;
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static const char *cpu_ds_def = {
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"DS:user:COUNTER:15:0:U "
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"DS:nice:COUNTER:15:0:U "
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"DS:system:COUNTER:15:0:U "
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"DS:idle:COUNTER:15:0:U "
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"DS:iowait:COUNTER:15:0:U "
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"DS:irq:COUNTER:15:0:U "
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"DS:softirq:COUNTER:15:0:U "
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"DS:steal:COUNTER:15:0:U "
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};
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static const char *proc_ds_def = {
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"DS:intr:COUNTER:15:0:U "
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"DS:ctxt:COUNTER:15:0:U "
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"DS:fork:COUNTER:15:0:U "
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};
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static const char * get_ds(int ds_id)
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{
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switch (ds_id) {
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case DS_CPU:
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return cpu_ds_def;
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case DS_PROC:
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return proc_ds_def;
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default:
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return NULL;
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}
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}
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struct proc_ {
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unsigned long long intr;
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unsigned long long ctxt;
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unsigned long long fork;
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};
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static int probe(void)
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{
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FILE *fp;
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struct proc_ proc;
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memset(&proc, 0, sizeof(proc));
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fp = fopen("/proc/stat", "r");
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if (fp == NULL) {
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log_print(LOG_WARN, "plugin stat");
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return -1;
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}
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while (fgets(buffer, BUFSIZE, fp) != NULL) {
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if (!strncmp(buffer, "cpu", 3)) {
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char *val[9], filename[16];
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int numfields, len, cpu;
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if ((buffer[3] >= '0') && (buffer[3] <= '9')) {
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cpu = atoi(buffer +3);
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len = snprintf(filename, sizeof(filename), "cpu-%d.rrd", cpu);
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if (len < 0 || len >= sizeof(filename))
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continue;
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} else {
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strncpy(filename, "cpu.rrd", sizeof(filename));
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}
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numfields = strsplit(buffer, " \t\n", val, 9);
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if (numfields < 5)
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continue;
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else if (numfields == 5)
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val[5] = val[6] = val[7] = val[8] = "0";
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else if (numfields == 8)
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val[8] = "0";
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probe_submit(&plugin, filename, DS_CPU,
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"%s:%s:%s:%s:%s:%s:%s:%s",
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val[1], val[2], val[3], val[4],
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val[5], val[6], val[7], val[8]);
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} else if (!strncmp(buffer, "intr", 4)) {
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proc.intr = atoll(buffer + 5);
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} else if (!strncmp(buffer, "ctxt", 4)) {
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proc.ctxt = atoll(buffer + 5);
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} else if (!strncmp(buffer, "processes", 9)) {
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proc.fork = atoll(buffer + 10);
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}
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}
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probe_submit(&plugin, "proc.rrd", DS_PROC, "%llu:%llu:%llu",
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proc.intr, proc.ctxt, proc.fork);
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fclose(fp);
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return 0;
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}
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static int init(void)
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{
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buffer = malloc(BUFSIZE);
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return (buffer == NULL) ? -1 : 0;
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}
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static int fini(void)
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{
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free(buffer);
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return 0;
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}
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struct sammler_plugin plugin = {
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.name = "stat",
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.interval = 10,
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.init = &init,
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.fini = &fini,
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.probe = &probe,
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.get_ds = &get_ds,
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};
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