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/*
* Copyright (c) 2013 Red Hat Inc.
*
* 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.
*
* Parse collectl header up to (and including) the first timestamp.
*/
#include "metrics.h"
static char *hostname = NULL;
int header_time = 0;
int
header_handler(FILE *fp, char *fname, char *buf, int maxbuf)
{
int i;
char *s;
fields_t *f;
int sts = 0;
while(fgets(buf, maxbuf, fp)) {
if ((s = strrchr(buf, '\n')) != NULL)
*s = '\0';
if (!buf[0])
continue;
f = fields_new(buf, strlen(buf)+1);
if (f->nfields == 0) {
fields_free(f);
continue;
}
if (strncmp(f->fields[0], ">>>", 3) == 0) {
/* first timestamp: we're finished parsing the header */
sts = timestamp_handler(find_handler(">>>"), f);
fields_free(f);
break;
}
if (f->nfields > 3 && strncmp(f->fields[1], "Host:", 5) == 0) {
/* # Host: somehostname ... */
if (hostname && strcmp(hostname, f->fields[2]) != 0) {
fprintf(stderr, "FATAL Error: host mismatch: \"%s\" contains data for host \"%s\", not \"%s\"\n",
fname, f->fields[2], hostname);
exit(1);
}
if (!hostname) {
hostname = strdup(f->fields[2]);
pmiSetHostname(hostname);
put_str_value("kernel.uname.nodename", PM_INDOM_NULL, NULL, hostname);
put_str_value("kernel.uname.sysname", PM_INDOM_NULL, NULL, "Linux");
}
}
if (f->nfields > 2 && strncmp(f->fields[1], "Distro:", 7) == 0) {
strcpy(buf, f->fields[2]);
for (i=3; i < f->nfields; i++) {
if (strcmp(f->fields[i], "Platform:") == 0)
break;
strcat(buf, " ");
strcat(buf, f->fields[i]);
}
put_str_value("kernel.uname.distro", PM_INDOM_NULL, NULL, buf);
#if 0 /* TODO -- add hinv.platform */
if (i < f->nfields) { /* found embedded platform */
strcpy(buf, f->fields[++i]);
for (; i < f->nfields; i++) {
strcat(buf, " ");
strcat(buf, f->fields[i]);
}
put_str_value("hinv.platform", PM_INDOM_NULL, NULL, buf);
}
#endif
}
if (f->nfields == 7 && strncmp(f->fields[1], "Date:", 5) == 0) {
/* # Date: 20130505-170328 Secs: 1367791408 TZ: -0500 */
int d = strtol(f->fields[4], NULL, 0);
if (d < header_time) {
fprintf(stderr, "FATAL Error: input file order mismatch: \"%s\" contains data at %d, prior to %d\n",
fname, d, header_time);
exit(1);
}
header_time = d;
sts = pmiSetTimezone(f->fields[6]);
utc_offset = strtol(f->fields[6], NULL, 0);
sscanf(f->fields[6], "%d", &utc_offset); /* e.g. -0500 */
utc_offset /= 100;
if (vflag)
printf("Timezone set to \"%s\" utc_offset=%d hours, sts=%d\n", f->fields[6], utc_offset, sts);
}
if (f->nfields > 8 && strncmp(f->fields[1], "SubSys:", 7) == 0) {
/* # SubSys: bcdfijmnstYZ Options: Interval: 10:60 NumCPUs: 24 NumBud: 3 Flags: i */
put_str_value("hinv.ncpu", PM_INDOM_NULL, NULL, f->fields[7]);
}
if (f->nfields == 7 && strncmp(f->fields[1], "HZ:", 3) == 0) {
/* # HZ: 100 Arch: x86_64-linux-thread-multi PageSize: 4096 */
kernel_all_hz = strtol(f->fields[2], NULL, 0);
put_str_value("kernel.all.hz", PM_INDOM_NULL, NULL, f->fields[2]);
put_str_value("kernel.uname.machine", PM_INDOM_NULL, NULL, f->fields[4]);
put_str_value("hinv.pagesize", PM_INDOM_NULL, NULL, f->fields[6]);
}
if (f->nfields == 9 && strncmp(f->fields[1], "Kernel:", 7) == 0) {
/* # Kernel: 2.6.18-274.17.1.el5 Memory: 131965176 kB Swap: 134215000 kB */
put_str_value("kernel.uname.release", PM_INDOM_NULL, NULL, f->fields[2]);
put_int_value("hinv.physmem", PM_INDOM_NULL, NULL, atoi(f->fields[4])/1024);
put_str_value("hinv.machine", PM_INDOM_NULL, NULL, "linux");
}
if (f->nfields > 4 && strncmp(f->fields[1], "NumDisks:", 9) == 0) {
/* # NumDisks: 846 DiskNames: sda sdb .... */
put_str_value("hinv.ndisk", PM_INDOM_NULL, NULL, f->fields[2]);
}
if (f->nfields > 4 && strncmp(f->fields[1], "NumNets:", 8) == 0) {
/* # NumNets: 5 NetNames: em1: lo: ... */
put_str_value("hinv.ninterface", PM_INDOM_NULL, NULL, f->fields[2]);
}
fields_free(f);
}
if (vflag)
printf("Parsed header in file:\"%s\" host:\"%s\" sts=%d\n", fname, hostname, sts);
return sts;
}
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