/**
* collectd - src/disk.c
- * Copyright (C) 2005 Florian octo Forster
+ * Copyright (C) 2005,2006 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
* Florian octo Forster <octo at verplant.org>
**/
-#include "disk.h"
+#include "collectd.h"
+#include "common.h"
+#include "plugin.h"
+#include "utils_debug.h"
-#if COLLECT_DISK
#define MODULE_NAME "disk"
-#include "plugin.h"
-#include "common.h"
+#if HAVE_MACH_MACH_TYPES_H
+# include <mach/mach_types.h>
+#endif
+#if HAVE_MACH_MACH_INIT_H
+# include <mach/mach_init.h>
+#endif
+#if HAVE_MACH_MACH_ERROR_H
+# include <mach/mach_error.h>
+#endif
+#if HAVE_MACH_MACH_PORT_H
+# include <mach/mach_port.h>
+#endif
+#if HAVE_COREFOUNDATION_COREFOUNDATION_H
+# include <CoreFoundation/CoreFoundation.h>
+#endif
+#if HAVE_IOKIT_IOKITLIB_H
+# include <IOKit/IOKitLib.h>
+#endif
+#if HAVE_IOKIT_IOTYPES_H
+# include <IOKit/IOTypes.h>
+#endif
+#if HAVE_IOKIT_STORAGE_IOBLOCKSTORAGEDRIVER_H
+# include <IOKit/storage/IOBlockStorageDriver.h>
+#endif
+#if HAVE_IOKIT_IOBSD_H
+# include <IOKit/IOBSD.h>
+#endif
+
+#if HAVE_IOKIT_IOKITLIB_H || KERNEL_LINUX || HAVE_LIBKSTAT
+# define DISK_HAVE_READ 1
+#else
+# define DISK_HAVE_READ 0
+#endif
+
+static char *disk_filename_template = "disk-%s.rrd";
+static char *part_filename_template = "partition-%s.rrd";
+
+/* 104857600 == 100 MB */
+static char *disk_ds_def[] =
+{
+ "DS:rcount:COUNTER:"COLLECTD_HEARTBEAT":0:U",
+ "DS:rmerged:COUNTER:"COLLECTD_HEARTBEAT":0:U",
+ "DS:rbytes:COUNTER:"COLLECTD_HEARTBEAT":0:104857600",
+ "DS:rtime:COUNTER:"COLLECTD_HEARTBEAT":0:U",
+ "DS:wcount:COUNTER:"COLLECTD_HEARTBEAT":0:U",
+ "DS:wmerged:COUNTER:"COLLECTD_HEARTBEAT":0:U",
+ "DS:wbytes:COUNTER:"COLLECTD_HEARTBEAT":0:104857600",
+ "DS:wtime:COUNTER:"COLLECTD_HEARTBEAT":0:U",
+ NULL
+};
+static int disk_ds_num = 8;
+
+static char *part_ds_def[] =
+{
+ "DS:rcount:COUNTER:"COLLECTD_HEARTBEAT":0:U",
+ "DS:rbytes:COUNTER:"COLLECTD_HEARTBEAT":0:104857600",
+ "DS:wcount:COUNTER:"COLLECTD_HEARTBEAT":0:U",
+ "DS:wbytes:COUNTER:"COLLECTD_HEARTBEAT":0:104857600",
+ NULL
+};
+static int part_ds_num = 4;
-#ifdef KERNEL_LINUX
+#if HAVE_IOKIT_IOKITLIB_H
+static mach_port_t io_master_port = MACH_PORT_NULL;
+/* #endif HAVE_IOKIT_IOKITLIB_H */
+
+#elif KERNEL_LINUX
typedef struct diskstats
{
char *name;
- unsigned int read_sectors;
- unsigned int write_sectors;
+ /* This overflows in roughly 1361 year */
+ unsigned int poll_count;
+
+ unsigned long long read_sectors;
+ unsigned long long write_sectors;
unsigned long long read_bytes;
unsigned long long write_bytes;
} diskstats_t;
static diskstats_t *disklist;
-/* KERNEL_LINUX */
+static int min_poll_count;
+/* #endif KERNEL_LINUX */
-#elif defined(HAVE_LIBKSTAT)
+#elif HAVE_LIBKSTAT
#define MAX_NUMDISK 256
extern kstat_ctl_t *kc;
static kstat_t *ksp[MAX_NUMDISK];
static int numdisk = 0;
#endif /* HAVE_LIBKSTAT */
-static char *disk_filename_template = "disk-%s.rrd";
-static char *part_filename_template = "partition-%s.rrd";
-
-/* 104857600 == 100 MB */
-static char *disk_ds_def[] =
+static void disk_init (void)
{
- "DS:rcount:COUNTER:25:0:U",
- "DS:rmerged:COUNTER:25:0:U",
- "DS:rbytes:COUNTER:25:0:104857600",
- "DS:rtime:COUNTER:25:0:U",
- "DS:wcount:COUNTER:25:0:U",
- "DS:wmerged:COUNTER:25:0:U",
- "DS:wbytes:COUNTER:25:0:104857600",
- "DS:wtime:COUNTER:25:0:U",
- NULL
-};
-static int disk_ds_num = 8;
+#if HAVE_IOKIT_IOKITLIB_H
+ kern_return_t status;
+
+ if (io_master_port != MACH_PORT_NULL)
+ {
+ mach_port_deallocate (mach_task_self (),
+ io_master_port);
+ io_master_port = MACH_PORT_NULL;
+ }
-static char *part_ds_def[] =
-{
- "DS:rcount:COUNTER:25:0:U",
- "DS:rbytes:COUNTER:25:0:104857600",
- "DS:wcount:COUNTER:25:0:U",
- "DS:wbytes:COUNTER:25:0:104857600",
- NULL
-};
-static int part_ds_num = 4;
+ status = IOMasterPort (MACH_PORT_NULL, &io_master_port);
+ if (status != kIOReturnSuccess)
+ {
+ syslog (LOG_ERR, "IOMasterPort failed: %s",
+ mach_error_string (status));
+ io_master_port = MACH_PORT_NULL;
+ return;
+ }
+/* #endif HAVE_IOKIT_IOKITLIB_H */
-extern time_t curtime;
+#elif KERNEL_LINUX
+ int step;
+ int heartbeat;
-void disk_init (void)
-{
-#ifdef HAVE_LIBKSTAT
+ step = atoi (COLLECTD_STEP);
+ heartbeat = atoi (COLLECTD_HEARTBEAT);
+
+ assert (step > 0);
+ assert (heartbeat >= step);
+
+ min_poll_count = 1 + (heartbeat / step);
+ DBG ("min_poll_count = %i;", min_poll_count);
+/* #endif KERNEL_LINUX */
+
+#elif HAVE_LIBKSTAT
kstat_t *ksp_chain;
numdisk = 0;
continue;
ksp[numdisk++] = ksp_chain;
}
-#endif
+#endif /* HAVE_LIBKSTAT */
return;
}
-void disk_write (char *host, char *inst, char *val)
+static void disk_write (char *host, char *inst, char *val)
{
char file[512];
int status;
rrd_update_file (host, file, val, disk_ds_def, disk_ds_num);
}
-void partition_write (char *host, char *inst, char *val)
+static void partition_write (char *host, char *inst, char *val)
{
char file[512];
int status;
rrd_update_file (host, file, val, part_ds_def, part_ds_num);
}
+#if DISK_HAVE_READ
#define BUFSIZE 512
-void disk_submit (char *disk_name,
+static void disk_submit (char *disk_name,
unsigned long long read_count,
unsigned long long read_merged,
unsigned long long read_bytes,
write_time) >= BUFSIZE)
return;
+ DBG ("disk_name = %s; buf = %s;",
+ disk_name, buf);
+
plugin_submit (MODULE_NAME, disk_name, buf);
}
-void partition_submit (char *part_name,
+#if KERNEL_LINUX || HAVE_LIBKSTAT
+static void partition_submit (char *part_name,
unsigned long long read_count,
unsigned long long read_bytes,
unsigned long long write_count,
plugin_submit ("partition", part_name, buf);
}
+#endif /* KERNEL_LINUX || HAVE_LIBKSTAT */
#undef BUFSIZE
-void disk_read (void)
+#if HAVE_IOKIT_IOKITLIB_H
+static signed long long dict_get_value (CFDictionaryRef dict, const char *key)
+{
+ signed long long val_int;
+ CFNumberRef val_obj;
+ CFStringRef key_obj;
+
+ /* `key_obj' needs to be released. */
+ key_obj = CFStringCreateWithCString (kCFAllocatorDefault, key,
+ kCFStringEncodingASCII);
+ if (key_obj == NULL)
+ {
+ DBG ("CFStringCreateWithCString (%s) failed.", key);
+ return (-1LL);
+ }
+
+ /* get => we don't need to release (== free) the object */
+ val_obj = (CFNumberRef) CFDictionaryGetValue (dict, key_obj);
+
+ CFRelease (key_obj);
+
+ if (val_obj == NULL)
+ {
+ DBG ("CFDictionaryGetValue (%s) failed.", key);
+ return (-1LL);
+ }
+
+ if (!CFNumberGetValue (val_obj, kCFNumberSInt64Type, &val_int))
+ {
+ DBG ("CFNumberGetValue (%s) failed.", key);
+ return (-1LL);
+ }
+
+ return (val_int);
+}
+#endif /* HAVE_IOKIT_IOKITLIB_H */
+
+static void disk_read (void)
{
-#ifdef KERNEL_LINUX
+#if HAVE_IOKIT_IOKITLIB_H
+ io_registry_entry_t disk;
+ io_registry_entry_t disk_child;
+ io_iterator_t disk_list;
+ CFDictionaryRef props_dict;
+ CFDictionaryRef stats_dict;
+ CFDictionaryRef child_dict;
+ kern_return_t status;
+
+ signed long long read_ops;
+ signed long long read_byt;
+ signed long long read_tme;
+ signed long long write_ops;
+ signed long long write_byt;
+ signed long long write_tme;
+
+ int disk_major;
+ int disk_minor;
+ char disk_name[64];
+
+ static complain_t complain_obj;
+
+ /* Get the list of all disk objects. */
+ if (IOServiceGetMatchingServices (io_master_port,
+ IOServiceMatching (kIOBlockStorageDriverClass),
+ &disk_list) != kIOReturnSuccess)
+ {
+ plugin_complain (LOG_ERR, &complain_obj, "disk plugin: "
+ "IOServiceGetMatchingServices failed.");
+ return;
+ }
+ else if (complain_obj.interval != 0)
+ {
+ plugin_relief (LOG_NOTICE, &complain_obj, "disk plugin: "
+ "IOServiceGetMatchingServices succeeded.");
+ }
+
+ while ((disk = IOIteratorNext (disk_list)) != 0)
+ {
+ props_dict = NULL;
+ stats_dict = NULL;
+ child_dict = NULL;
+
+ /* `disk_child' must be released */
+ if ((status = IORegistryEntryGetChildEntry (disk, kIOServicePlane, &disk_child))
+ != kIOReturnSuccess)
+ {
+ /* This fails for example for DVD/CD drives.. */
+ DBG ("IORegistryEntryGetChildEntry (disk) failed: 0x%08x", status);
+ IOObjectRelease (disk);
+ continue;
+ }
+
+ /* We create `props_dict' => we need to release it later */
+ if (IORegistryEntryCreateCFProperties (disk,
+ (CFMutableDictionaryRef *) &props_dict,
+ kCFAllocatorDefault,
+ kNilOptions)
+ != kIOReturnSuccess)
+ {
+ syslog (LOG_ERR, "disk-plugin: IORegistryEntryCreateCFProperties failed.");
+ IOObjectRelease (disk_child);
+ IOObjectRelease (disk);
+ continue;
+ }
+
+ if (props_dict == NULL)
+ {
+ DBG ("IORegistryEntryCreateCFProperties (disk) failed.");
+ IOObjectRelease (disk_child);
+ IOObjectRelease (disk);
+ continue;
+ }
+
+ stats_dict = (CFDictionaryRef) CFDictionaryGetValue (props_dict,
+ CFSTR (kIOBlockStorageDriverStatisticsKey));
+
+ if (stats_dict == NULL)
+ {
+ DBG ("CFDictionaryGetValue (%s) failed.",
+ kIOBlockStorageDriverStatisticsKey);
+ CFRelease (props_dict);
+ IOObjectRelease (disk_child);
+ IOObjectRelease (disk);
+ continue;
+ }
+
+ if (IORegistryEntryCreateCFProperties (disk_child,
+ (CFMutableDictionaryRef *) &child_dict,
+ kCFAllocatorDefault,
+ kNilOptions)
+ != kIOReturnSuccess)
+ {
+ DBG ("IORegistryEntryCreateCFProperties (disk_child) failed.");
+ IOObjectRelease (disk_child);
+ CFRelease (props_dict);
+ IOObjectRelease (disk);
+ continue;
+ }
+
+ disk_major = (int) dict_get_value (child_dict,
+ kIOBSDMajorKey);
+ disk_minor = (int) dict_get_value (child_dict,
+ kIOBSDMinorKey);
+ read_ops = dict_get_value (stats_dict,
+ kIOBlockStorageDriverStatisticsReadsKey);
+ read_byt = dict_get_value (stats_dict,
+ kIOBlockStorageDriverStatisticsBytesReadKey);
+ read_tme = dict_get_value (stats_dict,
+ kIOBlockStorageDriverStatisticsTotalReadTimeKey);
+ write_ops = dict_get_value (stats_dict,
+ kIOBlockStorageDriverStatisticsWritesKey);
+ write_byt = dict_get_value (stats_dict,
+ kIOBlockStorageDriverStatisticsBytesWrittenKey);
+ write_tme = dict_get_value (stats_dict,
+ kIOBlockStorageDriverStatisticsTotalWriteTimeKey);
+
+ if (snprintf (disk_name, 64, "%i-%i", disk_major, disk_minor) >= 64)
+ {
+ DBG ("snprintf (major, minor) failed.");
+ CFRelease (child_dict);
+ IOObjectRelease (disk_child);
+ CFRelease (props_dict);
+ IOObjectRelease (disk);
+ continue;
+ }
+ DBG ("disk_name = %s", disk_name);
+
+ if ((read_ops != -1LL)
+ || (read_byt != -1LL)
+ || (read_tme != -1LL)
+ || (write_ops != -1LL)
+ || (write_byt != -1LL)
+ || (write_tme != -1LL))
+ disk_submit (disk_name,
+ read_ops, 0ULL, read_byt, read_tme,
+ write_ops, 0ULL, write_byt, write_tme);
+
+ CFRelease (child_dict);
+ IOObjectRelease (disk_child);
+ CFRelease (props_dict);
+ IOObjectRelease (disk);
+ }
+ IOObjectRelease (disk_list);
+/* #endif HAVE_IOKIT_IOKITLIB_H */
+
+#elif KERNEL_LINUX
FILE *fh;
char buffer[1024];
char disk_name[128];
int major = 0;
int minor = 0;
- unsigned int read_sectors;
- unsigned int write_sectors;
-
- unsigned long long read_count = 0;
- unsigned long long read_merged = 0;
- unsigned long long read_bytes = 0;
- unsigned long long read_time = 0;
- unsigned long long write_count = 0;
- unsigned long long write_merged = 0;
- unsigned long long write_bytes = 0;
- unsigned long long write_time = 0;
+ unsigned long long read_sectors = 0ULL;
+ unsigned long long write_sectors = 0ULL;
+
+ unsigned long long read_count = 0ULL;
+ unsigned long long read_merged = 0ULL;
+ unsigned long long read_bytes = 0ULL;
+ unsigned long long read_time = 0ULL;
+ unsigned long long write_count = 0ULL;
+ unsigned long long write_merged = 0ULL;
+ unsigned long long write_bytes = 0ULL;
+ unsigned long long write_time = 0ULL;
int is_disk = 0;
diskstats_t *ds, *pre_ds;
+ static complain_t complain_obj;
+
if ((fh = fopen ("/proc/diskstats", "r")) == NULL)
{
if ((fh = fopen ("/proc/partitions", "r")) == NULL)
+ {
+ plugin_complain (LOG_ERR, &complain_obj, "disk plugin: Failed to open /proc/{diskstats,partitions}.");
return;
+ }
/* Kernel is 2.4.* */
fieldshift = 1;
}
+ plugin_relief (LOG_NOTICE, &complain_obj, "disk plugin: Succeeded to open /proc/{diskstats,partitions}.");
+
while (fgets (buffer, 1024, fh) != NULL)
{
numfields = strsplit (buffer, fields, 32);
{
/* Kernel 2.6, Partition */
read_count = atoll (fields[3]);
- read_sectors = atoi (fields[4]);
+ read_sectors = atoll (fields[4]);
write_count = atoll (fields[5]);
- write_sectors = atoi (fields[6]);
+ write_sectors = atoll (fields[6]);
}
else if (numfields == (14 + fieldshift))
{
read_count = atoll (fields[3 + fieldshift]);
write_count = atoll (fields[7 + fieldshift]);
- read_sectors = atoi (fields[5 + fieldshift]);
- write_sectors = atoi (fields[9 + fieldshift]);
+ read_sectors = atoll (fields[5 + fieldshift]);
+ write_sectors = atoll (fields[9 + fieldshift]);
if ((fieldshift == 0) || (minor == 0))
{
}
else
{
+ DBG ("numfields = %i; => unknown file format.", numfields);
continue;
}
-
- if (read_sectors >= ds->read_sectors)
- ds->read_bytes += 512 * (read_sectors - ds->read_sectors);
+ /* If the counter wraps around, it's only 32 bits.. */
+ if (read_sectors < ds->read_sectors)
+ ds->read_bytes += 512 * ((0xFFFFFFFF - ds->read_sectors) + read_sectors);
else
- ds->read_bytes += 512 * ((UINT_MAX - ds->read_sectors) + read_sectors);
+ ds->read_bytes += 512 * (read_sectors - ds->read_sectors);
- if (write_sectors >= ds->write_sectors)
- ds->write_bytes += 512 * (write_sectors - ds->write_sectors);
+ if (write_sectors < ds->write_sectors)
+ ds->write_bytes += 512 * ((0xFFFFFFFF - ds->write_sectors) + write_sectors);
else
- ds->write_bytes += 512 * ((UINT_MAX - ds->write_sectors) + write_sectors);
+ ds->write_bytes += 512 * (write_sectors - ds->write_sectors);
ds->read_sectors = read_sectors;
ds->write_sectors = write_sectors;
read_bytes = ds->read_bytes;
write_bytes = ds->write_bytes;
+ /* Don't write to the RRDs if we've just started.. */
+ ds->poll_count++;
+ if (ds->poll_count <= min_poll_count)
+ {
+ DBG ("(ds->poll_count = %i) <= (min_poll_count = %i); => Not writing.",
+ ds->poll_count, min_poll_count);
+ continue;
+ }
if ((read_count == 0) && (write_count == 0))
+ {
+ DBG ("((read_count == 0) && (write_count == 0)); => Not writing.");
continue;
+ }
if (is_disk)
disk_submit (disk_name, read_count, read_merged, read_bytes, read_time,
fclose (fh);
/* #endif defined(KERNEL_LINUX) */
-#elif defined(HAVE_LIBKSTAT)
+#elif HAVE_LIBKSTAT
static kstat_io_t kio;
int i;
kio.writes,kio.nwritten);
}
#endif /* defined(HAVE_LIBKSTAT) */
-}
+} /* static void disk_read (void) */
+#else
+# define disk_read NULL
+#endif /* DISK_HAVE_READ */
void module_register (void)
{
}
#undef MODULE_NAME
-#endif /* COLLECT_DISK */
projects / collectd.git / blobdiff