/**
* collectd - src/load.c
- * Copyright (C) 2005,2006 Florian octo Forster
+ * Copyright (C) 2005-2008 Florian octo Forster
+ * Copyright (C) 2009 Manuel Sanmartin
*
* 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.
+ * Free Software Foundation; only version 2 of the License is applicable.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
*
* Authors:
* Florian octo Forster <octo at verplant.org>
+ * Manuel Sanmartin
**/
+#define _BSD_SOURCE
+
#include "collectd.h"
#include "common.h"
#include "plugin.h"
-#define MODULE_NAME "load"
-
-#if defined(HAVE_GETLOADAVG) || defined(KERNEL_LINUX) || defined(HAVE_LIBSTATGRAB)
-# define LOAD_HAVE_READ 1
-#else
-# define LOAD_HAVE_READ 0
-#endif
-
#ifdef HAVE_SYS_LOADAVG_H
#include <sys/loadavg.h>
#endif
+#if HAVE_STATGRAB_H
+# include <statgrab.h>
+#endif
+
#ifdef HAVE_GETLOADAVG
#if !defined(LOADAVG_1MIN) || !defined(LOADAVG_5MIN) || !defined(LOADAVG_15MIN)
#define LOADAVG_1MIN 0
#endif
#endif /* defined(HAVE_GETLOADAVG) */
-static data_source_t dsrc[3] =
-{
- {"shortterm", DS_TYPE_GAUGE, 0.0, 100.0},
- {"midterm", DS_TYPE_GAUGE, 0.0, 100.0},
- {"longterm", DS_TYPE_GAUGE, 0.0, 100.0}
-};
+#ifdef HAVE_PERFSTAT
+# include <sys/proc.h> /* AIX 5 */
+# include <sys/protosw.h>
+# include <libperfstat.h>
+#endif /* HAVE_PERFSTAT */
-static data_set_t ds =
-{
- "load", 3, dsrc
-};
-
-#if LOAD_HAVE_READ
-static void load_submit (double snum, double mnum, double lnum)
+static void load_submit (gauge_t snum, gauge_t mnum, gauge_t lnum)
{
value_t values[3];
value_list_t vl = VALUE_LIST_INIT;
values[2].gauge = lnum;
vl.values = values;
- vl.values_len = 3;
- vl.time = time (NULL);
- /* FIXME: do this globally */
- if (gethostname (vl.host, sizeof (vl.host)) != 0)
- {
- syslog (LOG_ERR, "load plugin: gethostname failed: %s",
- strerror (errno));
- return;
- }
- strcpy (vl.plugin, "load");
- strcpy (vl.plugin_instance, "");
- strcpy (vl.type_instance, "");
+ vl.values_len = STATIC_ARRAY_SIZE (values);
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, "load", sizeof (vl.plugin));
+ sstrncpy (vl.type, "load", sizeof (vl.type));
- plugin_dispatch_values ("load", &vl);
+ plugin_dispatch_values (&vl);
}
static int load_read (void)
if (getloadavg (load, 3) == 3)
load_submit (load[LOADAVG_1MIN], load[LOADAVG_5MIN], load[LOADAVG_15MIN]);
else
- syslog (LOG_WARNING, "load: getloadavg failed: %s", strerror (errno));
+ {
+ char errbuf[1024];
+ WARNING ("load: getloadavg failed: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
/* #endif HAVE_GETLOADAVG */
#elif defined(KERNEL_LINUX)
- double snum, mnum, lnum;
+ gauge_t snum, mnum, lnum;
FILE *loadavg;
char buffer[16];
char *fields[8];
int numfields;
-
+
if ((loadavg = fopen ("/proc/loadavg", "r")) == NULL)
{
- syslog (LOG_WARNING, "load: fopen: %s", strerror (errno));
- return;
+ char errbuf[1024];
+ WARNING ("load: fopen: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
}
if (fgets (buffer, 16, loadavg) == NULL)
{
- syslog (LOG_WARNING, "load: fgets: %s", strerror (errno));
+ char errbuf[1024];
+ WARNING ("load: fgets: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
fclose (loadavg);
- return;
+ return (-1);
}
if (fclose (loadavg))
- syslog (LOG_WARNING, "load: fclose: %s", strerror (errno));
+ {
+ char errbuf[1024];
+ WARNING ("load: fclose: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
numfields = strsplit (buffer, fields, 8);
if (numfields < 3)
- return;
+ return (-1);
snum = atof (fields[0]);
mnum = atof (fields[1]);
load_submit (snum, mnum, lnum);
/* #endif KERNEL_LINUX */
-#elif defined(HAVE_LIBSTATGRAB)
- double snum, mnum, lnum;
+#elif HAVE_LIBSTATGRAB
+ gauge_t snum, mnum, lnum;
sg_load_stats *ls;
if ((ls = sg_get_load_stats ()) == NULL)
lnum = ls->min15;
load_submit (snum, mnum, lnum);
-#endif /* HAVE_LIBSTATGRAB */
+/* #endif HAVE_LIBSTATGRAB */
+
+#elif HAVE_PERFSTAT
+ gauge_t snum, mnum, lnum;
+ perfstat_cpu_total_t cputotal;
+
+ if (perfstat_cpu_total(NULL, &cputotal, sizeof(perfstat_cpu_total_t), 1) < 0)
+ {
+ char errbuf[1024];
+ WARNING ("load: perfstat_cpu : %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
+
+ snum = (float)cputotal.loadavg[0]/(float)(1<<SBITS);
+ mnum = (float)cputotal.loadavg[1]/(float)(1<<SBITS);
+ lnum = (float)cputotal.loadavg[2]/(float)(1<<SBITS);
+
+ load_submit (snum, mnum, lnum);
+/* #endif HAVE_PERFSTAT */
+
+#else
+# error "No applicable input method."
+#endif
return (0);
}
-#endif /* LOAD_HAVE_READ */
void module_register (void)
{
- plugin_register_data_set (&ds);
-#if LOAD_HAVE_READ
plugin_register_read ("load", load_read);
-#endif
-}
-
-#undef MODULE_NAME
+} /* void module_register */