mirror of
https://github.com/munin-monitoring/contrib.git
synced 2018-11-08 00:59:34 +01:00
bb7bf0bcd7
Added common functions autoconf_check_readable and fail. Added some TODOs for later completion. Updated messages from upstream plugins.
67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
#include <string.h>
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#include <stdio.h>
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#include <unistd.h>
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#include "common.h"
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int swap(int argc, char **argv) {
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FILE *f;
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char buff[256];
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int in, out;
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if(argc > 1) {
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if(!strcmp(argv[1], "config")) {
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puts("graph_title Swap in/out\n"
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"graph_args -l 0 --base 1000\n"
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"graph_vlabel pages per ${graph_period} in (-) / out (+)\n"
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"graph_category system\n"
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"swap_in.label swap\n"
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"swap_in.type DERIVE\n"
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"swap_in.max 100000\n"
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"swap_in.min 0\n"
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"swap_in.graph no\n"
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"swap_out.label swap\n"
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"swap_out.type DERIVE\n"
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"swap_out.max 100000\n"
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"swap_out.min 0\n"
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"swap_out.negative swap_in");
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print_warncrit("swap_in");
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print_warncrit("swap_out");
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return 0;
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}
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if(!strcmp(argv[1], "autoconf"))
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return autoconf_check_readable(PROC_STAT);
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}
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if(!access("/proc/vmstat", F_OK)) {
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in=out=0;
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if(!(f=fopen("/proc/vmstat", "r")))
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return fail("cannot open /proc/vmstat");
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while(fgets(buff, 256, f)) {
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if(!in && !strncmp(buff, "pswpin ", 7)) {
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++in;
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printf("swap_in.value %s", buff+7);
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}
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else if(!out && !strncmp(buff, "pswpout ", 8)) {
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++out;
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printf("swap_out.value %s", buff+8);
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}
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}
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fclose(f);
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if(!(in*out))
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return fail("no usable data on /proc/vmstat");
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return 0;
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} else {
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if(!(f=fopen(PROC_STAT, "r")))
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return fail("cannot open " PROC_STAT);
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while(fgets(buff, 256, f)) {
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if(!strncmp(buff, "swap ", 5)) {
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fclose(f);
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if(2 != sscanf(buff+5, "%d %d", &in, &out))
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return fail("bad data on " PROC_STAT);
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printf("swap_in.value %d\nswap_out.value %d\n", in, out);
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return 0;
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}
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}
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fclose(f);
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return fail("no swap line found in " PROC_STAT);
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}
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}
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