/**
* collectd - src/memory.c
- * Copyright (C) 2005,2006 Florian octo Forster
+ * Copyright (C) 2005-2007 Florian octo Forster
*
* 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
#ifdef HAVE_MACH_HOST_PRIV_H
# include <mach/host_priv.h>
#endif
-#ifdef MACH_VM_STATISTICS_H
+#ifdef HAVE_MACH_VM_STATISTICS_H
# include <mach/vm_statistics.h>
#endif
-#if defined (HOST_VM_INFO) || HAVE_SYSCTLBYNAME || KERNEL_LINUX || HAVE_LIBKSTAT
-# define MEMORY_HAVE_READ 1
-#else
-# define MEMORY_HAVE_READ 0
+#if HAVE_STATGRAB_H
+# include <statgrab.h>
#endif
-#define MODULE_NAME "memory"
-
-static char *memory_file = "memory.rrd";
-
-/* 9223372036854775807 == LLONG_MAX */
-static char *ds_def[] =
-{
- "DS:used:GAUGE:"COLLECTD_HEARTBEAT":0:9223372036854775807",
- "DS:free:GAUGE:"COLLECTD_HEARTBEAT":0:9223372036854775807",
- "DS:buffers:GAUGE:"COLLECTD_HEARTBEAT":0:9223372036854775807",
- "DS:cached:GAUGE:"COLLECTD_HEARTBEAT":0:9223372036854775807",
- NULL
-};
-static int ds_num = 4;
-
/* vm_statistics_data_t */
-#if defined(HOST_VM_INFO)
+#if HAVE_HOST_STATISTICS
static mach_port_t port_host;
static vm_size_t pagesize;
-/* #endif HOST_VM_INFO */
+/* #endif HAVE_HOST_STATISTICS */
#elif HAVE_SYSCTLBYNAME
/* no global variables */
#elif HAVE_LIBKSTAT
static int pagesize;
static kstat_t *ksp;
-#endif /* HAVE_LIBKSTAT */
+/* #endif HAVE_LIBKSTAT */
+
+#elif HAVE_LIBSTATGRAB
+/* no global variables */
+/* endif HAVE_LIBSTATGRAB */
-static void memory_init (void)
+#else
+# error "No applicable input method."
+#endif
+
+static int memory_init (void)
{
-#if defined(HOST_VM_INFO)
+#if HAVE_HOST_STATISTICS
port_host = mach_host_self ();
host_page_size (port_host, &pagesize);
-/* #endif HOST_VM_INFO */
+/* #endif HAVE_HOST_STATISTICS */
#elif HAVE_SYSCTLBYNAME
/* no init stuff */
ksp = NULL;
#endif /* HAVE_LIBKSTAT */
- return;
-}
+ return (0);
+} /* int memory_init */
-static void memory_write (char *host, char *inst, char *val)
+static void memory_submit (const char *type_instance, gauge_t value)
{
- rrd_update_file (host, memory_file, val, ds_def, ds_num);
-}
+ value_t values[1];
+ value_list_t vl = VALUE_LIST_INIT;
-#if MEMORY_HAVE_READ
-#define BUFSIZE 512
-static void memory_submit (long long mem_used, long long mem_buffered,
- long long mem_cached, long long mem_free)
-{
- char buf[BUFSIZE];
+ values[0].gauge = value;
- if (snprintf (buf, BUFSIZE, "%u:%lli:%lli:%lli:%lli",
- (unsigned int) curtime, mem_used, mem_free,
- mem_buffered, mem_cached) >= BUFSIZE)
- return;
+ vl.values = values;
+ vl.values_len = 1;
+ vl.time = time (NULL);
+ sstrncpy (vl.host, hostname_g, sizeof (vl.host));
+ sstrncpy (vl.plugin, "memory", sizeof (vl.plugin));
+ strncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
+ vl.type_instance[sizeof (vl.type_instance) - 1] = '\0';
- plugin_submit (MODULE_NAME, "-", buf);
+ plugin_dispatch_values ("memory", &vl);
}
-#undef BUFSIZE
-static void memory_read (void)
+static int memory_read (void)
{
-#if defined(HOST_VM_INFO)
+#if HAVE_HOST_STATISTICS
kern_return_t status;
vm_statistics_data_t vm_data;
mach_msg_type_number_t vm_data_len;
long long free;
if (!port_host || !pagesize)
- return;
+ return (-1);
vm_data_len = sizeof (vm_data) / sizeof (natural_t);
if ((status = host_statistics (port_host, HOST_VM_INFO,
(host_info_t) &vm_data,
&vm_data_len)) != KERN_SUCCESS)
{
- syslog (LOG_ERR, "memory-plugin: host_statistics failed and returned the value %i", (int) status);
- return;
+ ERROR ("memory-plugin: host_statistics failed and returned the value %i", (int) status);
+ return (-1);
}
/*
inactive = vm_data.inactive_count * pagesize;
free = vm_data.free_count * pagesize;
- memory_submit (wired + active, -1, inactive, free);
-/* #endif HOST_VM_INFO */
+ memory_submit ("wired", wired);
+ memory_submit ("active", active);
+ memory_submit ("inactive", inactive);
+ memory_submit ("free", free);
+/* #endif HAVE_HOST_STATISTICS */
#elif HAVE_SYSCTLBYNAME
/*
"vm.stats.vm.v_cache_count",
NULL
};
- int sysctl_vals[8] = { -1, -1, -1, -1, -1, -1, -1, -1 };
+ double sysctl_vals[8];
- size_t len;
int i;
- int status;
for (i = 0; sysctl_keys[i] != NULL; i++)
{
- len = sizeof (int);
- if ((status = sysctlbyname (sysctl_keys[i],
- (void *) &sysctl_vals[i], len,
- NULL, 0)) < 0)
+ int value;
+ size_t value_len = sizeof (value);
+
+ if (sysctlbyname (sysctl_keys[i], (void *) &value, &value_len,
+ NULL, 0) == 0)
+ {
+ sysctl_vals[i] = value;
+ DEBUG ("memory plugin: %26s: %6i", sysctl_keys[i], sysctl_vals[i]);
+ }
+ else
{
- syslog (LOG_ERR, "memory plugin: sysctlbyname (%s): %s",
- sysctl_keys[i], strerror (status));
- return;
+ sysctl_vals[i] = NAN;
}
- DBG ("%26s: %6i", sysctl_keys[i], sysctl_vals[i]);
- } /* for i */
+ } /* for (sysctl_keys) */
/* multiply all all page counts with the pagesize */
for (i = 1; sysctl_keys[i] != NULL; i++)
- sysctl_vals[i] = sysctl_vals[i] * sysctl_vals[0];
-
- memory_submit (sysctl_vals[3] + sysctl_vals[4], /* wired + active */
- sysctl_vals[6], /* cache */
- sysctl_vals[5], /* inactive */
- sysctl_vals[2]); /* free */
+ if (!isnan (sysctl_vals[i]))
+ sysctl_vals[i] *= sysctl_vals[0];
+
+ memory_submit ("free", sysctl_vals[2]);
+ memory_submit ("wired", sysctl_vals[3]);
+ memory_submit ("active", sysctl_vals[4]);
+ memory_submit ("inactive", sysctl_vals[5]);
+ memory_submit ("cache", sysctl_vals[6]);
/* #endif HAVE_SYSCTLBYNAME */
-#elif defined(KERNEL_LINUX)
+#elif KERNEL_LINUX
FILE *fh;
char buffer[1024];
if ((fh = fopen ("/proc/meminfo", "r")) == NULL)
{
- syslog (LOG_WARNING, "memory: fopen: %s", strerror (errno));
- return;
+ char errbuf[1024];
+ WARNING ("memory: fopen: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
}
while (fgets (buffer, 1024, fh) != NULL)
}
if (fclose (fh))
- syslog (LOG_WARNING, "memory: fclose: %s", strerror (errno));
+ {
+ char errbuf[1024];
+ WARNING ("memory: fclose: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ }
if (mem_used >= (mem_free + mem_buffered + mem_cached))
{
mem_used -= mem_free + mem_buffered + mem_cached;
- memory_submit (mem_used, mem_buffered, mem_cached, mem_free);
+ memory_submit ("used", mem_used);
+ memory_submit ("buffered", mem_buffered);
+ memory_submit ("cached", mem_cached);
+ memory_submit ("free", mem_free);
}
-/* #endif defined(KERNEL_LINUX) */
+/* #endif KERNEL_LINUX */
-#elif defined(HAVE_LIBKSTAT)
+#elif HAVE_LIBKSTAT
long long mem_used;
long long mem_free;
long long mem_lock;
if (ksp == NULL)
- return;
+ return (-1);
mem_used = get_kstat_value (ksp, "pagestotal");
mem_free = get_kstat_value (ksp, "pagesfree");
mem_lock = get_kstat_value (ksp, "pageslocked");
if ((mem_used < 0LL) || (mem_free < 0LL) || (mem_lock < 0LL))
- return;
+ return (-1);
if (mem_used < (mem_free + mem_lock))
- return;
+ return (-1);
mem_used -= mem_free + mem_lock;
mem_used *= pagesize; /* If this overflows you have some serious */
mem_free *= pagesize; /* memory.. Why not call me up and give me */
mem_lock *= pagesize; /* some? ;) */
- memory_submit (mem_used, mem_lock, 0LL, mem_free);
-/* #endif defined(HAVE_LIBKSTAT) */
+ memory_submit ("used", mem_used);
+ memory_submit ("free", mem_free);
+ memory_submit ("locked", mem_lock);
+/* #endif HAVE_LIBKSTAT */
-#elif defined(HAVE_LIBSTATGRAB)
+#elif HAVE_LIBSTATGRAB
sg_mem_stats *ios;
if ((ios = sg_get_mem_stats ()) != NULL)
- memory_submit (ios->used, 0LL, ios->cache, ios->free);
+ {
+ memory_submit ("used", ios->used);
+ memory_submit ("cached", ios->cached);
+ memory_submit ("free", ios->free);
+ }
#endif /* HAVE_LIBSTATGRAB */
+
+ return (0);
}
-#else
-# define memory_read NULL
-#endif /* MEMORY_HAVE_READ */
void module_register (void)
{
- plugin_register (MODULE_NAME, memory_init, memory_read, memory_write);
-}
-
-#undef MODULE_NAME
+ plugin_register_init ("memory", memory_init);
+ plugin_register_read ("memory", memory_read);
+} /* void module_register */
projects / collectd.git / blobdiff