![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/src/disk.c b/src/disk.c
--- a/src/disk.c
+++ /dev/null
@@ -1,943 +0,0 @@
-/**
- * collectd - src/disk.c
- * Copyright (C) 2005-2012 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; 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
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Authors:
- * Florian octo Forster <octo at collectd.org>
- * Manuel Sanmartin
- **/
-
-#include "collectd.h"
-#include "common.h"
-#include "plugin.h"
-#include "utils_ignorelist.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_LIMITS_H
-# include <limits.h>
-#endif
-#ifndef UINT_MAX
-# define UINT_MAX 4294967295U
-#endif
-
-#if HAVE_STATGRAB_H
-# include <statgrab.h>
-#endif
-
-#if HAVE_PERFSTAT
-# ifndef _AIXVERSION_610
-# include <sys/systemcfg.h>
-# endif
-# include <sys/protosw.h>
-# include <libperfstat.h>
-#endif
-
-#if HAVE_IOKIT_IOKITLIB_H
-static mach_port_t io_master_port = MACH_PORT_NULL;
-/* This defaults to false for backwards compatibility. Please fix in the next
- * major version. */
-static _Bool use_bsd_name = 0;
-/* #endif HAVE_IOKIT_IOKITLIB_H */
-
-#elif KERNEL_LINUX
-typedef struct diskstats
-{
- char *name;
-
- /* This overflows in roughly 1361 years */
- unsigned int poll_count;
-
- derive_t read_sectors;
- derive_t write_sectors;
-
- derive_t read_bytes;
- derive_t write_bytes;
-
- derive_t read_ops;
- derive_t write_ops;
- derive_t read_time;
- derive_t write_time;
-
- derive_t avg_read_time;
- derive_t avg_write_time;
-
- struct diskstats *next;
-} diskstats_t;
-
-static diskstats_t *disklist;
-/* #endif KERNEL_LINUX */
-
-#elif HAVE_LIBKSTAT
-#define MAX_NUMDISK 1024
-extern kstat_ctl_t *kc;
-static kstat_t *ksp[MAX_NUMDISK];
-static int numdisk = 0;
-/* #endif HAVE_LIBKSTAT */
-
-#elif defined(HAVE_LIBSTATGRAB)
-/* #endif HAVE_LIBKSTATGRAB */
-
-#elif HAVE_PERFSTAT
-static perfstat_disk_t * stat_disk;
-static int numdisk;
-static int pnumdisk;
-/* #endif HAVE_PERFSTAT */
-
-#else
-# error "No applicable input method."
-#endif
-
-#if HAVE_LIBUDEV
-#include <libudev.h>
-
-static char *conf_udev_name_attr = NULL;
-static struct udev *handle_udev;
-#endif
-
-static const char *config_keys[] =
-{
- "Disk",
- "UseBSDName",
- "IgnoreSelected",
- "UdevNameAttr"
-};
-static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
-
-static ignorelist_t *ignorelist = NULL;
-
-static int disk_config (const char *key, const char *value)
-{
- if (ignorelist == NULL)
- ignorelist = ignorelist_create (/* invert = */ 1);
- if (ignorelist == NULL)
- return (1);
-
- if (strcasecmp ("Disk", key) == 0)
- {
- ignorelist_add (ignorelist, value);
- }
- else if (strcasecmp ("IgnoreSelected", key) == 0)
- {
- int invert = 1;
- if (IS_TRUE (value))
- invert = 0;
- ignorelist_set_invert (ignorelist, invert);
- }
- else if (strcasecmp ("UseBSDName", key) == 0)
- {
-#if HAVE_IOKIT_IOKITLIB_H
- use_bsd_name = IS_TRUE (value) ? 1 : 0;
-#else
- WARNING ("disk plugin: The \"UseBSDName\" option is only supported "
- "on Mach / Mac OS X and will be ignored.");
-#endif
- }
- else if (strcasecmp ("UdevNameAttr", key) == 0)
- {
-#if HAVE_LIBUDEV
- if (conf_udev_name_attr != NULL)
- {
- free (conf_udev_name_attr);
- conf_udev_name_attr = NULL;
- }
- if ((conf_udev_name_attr = strdup (value)) == NULL)
- return (1);
-#else
- WARNING ("disk plugin: The \"UdevNameAttr\" option is only supported "
- "if collectd is built with libudev support");
-#endif
- }
- else
- {
- return (-1);
- }
-
- return (0);
-} /* int disk_config */
-
-static int disk_init (void)
-{
-#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;
- }
-
- status = IOMasterPort (MACH_PORT_NULL, &io_master_port);
- if (status != kIOReturnSuccess)
- {
- ERROR ("IOMasterPort failed: %s",
- mach_error_string (status));
- io_master_port = MACH_PORT_NULL;
- return (-1);
- }
-/* #endif HAVE_IOKIT_IOKITLIB_H */
-
-#elif KERNEL_LINUX
- /* do nothing */
-/* #endif KERNEL_LINUX */
-
-#elif HAVE_LIBKSTAT
- kstat_t *ksp_chain;
-
- numdisk = 0;
-
- if (kc == NULL)
- return (-1);
-
- for (numdisk = 0, ksp_chain = kc->kc_chain;
- (numdisk < MAX_NUMDISK) && (ksp_chain != NULL);
- ksp_chain = ksp_chain->ks_next)
- {
- if (strncmp (ksp_chain->ks_class, "disk", 4)
- && strncmp (ksp_chain->ks_class, "partition", 9))
- continue;
- if (ksp_chain->ks_type != KSTAT_TYPE_IO)
- continue;
- ksp[numdisk++] = ksp_chain;
- }
-#endif /* HAVE_LIBKSTAT */
-
- return (0);
-} /* int disk_init */
-
-static void disk_submit (const char *plugin_instance,
- const char *type,
- derive_t read, derive_t write)
-{
- value_t values[2];
- value_list_t vl = VALUE_LIST_INIT;
-
- /* Both `ignorelist' and `plugin_instance' may be NULL. */
- if (ignorelist_match (ignorelist, plugin_instance) != 0)
- return;
-
- values[0].derive = read;
- values[1].derive = write;
-
- vl.values = values;
- vl.values_len = 2;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "disk", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, plugin_instance,
- sizeof (vl.plugin_instance));
- sstrncpy (vl.type, type, sizeof (vl.type));
-
- plugin_dispatch_values (&vl);
-} /* void disk_submit */
-
-#if KERNEL_LINUX
-static void submit_in_progress (char const *disk_name, gauge_t in_progress)
-{
- value_t v;
- value_list_t vl = VALUE_LIST_INIT;
-
- if (ignorelist_match (ignorelist, disk_name) != 0)
- return;
-
- v.gauge = in_progress;
-
- vl.values = &v;
- vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "disk", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, disk_name, sizeof (vl.plugin_instance));
- sstrncpy (vl.type, "pending_operations", sizeof (vl.type));
-
- plugin_dispatch_values (&vl);
-}
-
-static void submit_io_time (char const *plugin_instance, derive_t io_time, derive_t weighted_time)
-{
- value_t values[2];
- value_list_t vl = VALUE_LIST_INIT;
-
- if (ignorelist_match (ignorelist, plugin_instance) != 0)
- return;
-
- values[0].derive = io_time;
- values[1].derive = weighted_time;
-
- vl.values = values;
- vl.values_len = 2;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "disk", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
- sstrncpy (vl.type, "disk_io_time", sizeof (vl.type));
-
- plugin_dispatch_values (&vl);
-}
-
-
-static counter_t disk_calc_time_incr (counter_t delta_time, counter_t delta_ops)
-{
- double interval = CDTIME_T_TO_DOUBLE (plugin_get_interval ());
- double avg_time = ((double) delta_time) / ((double) delta_ops);
- double avg_time_incr = interval * avg_time;
-
- return ((counter_t) (avg_time_incr + .5));
-}
-#endif
-
-#if HAVE_LIBUDEV
-/**
- * Attempt to provide an rename disk instance from an assigned udev attribute.
- *
- * On success, it returns a strduped char* to the desired attribute value.
- * Otherwise it returns NULL.
- */
-
-static char *disk_udev_attr_name (struct udev *udev, char *disk_name, const char *attr)
-{
- struct udev_device *dev;
- const char *prop;
- char *output = NULL;
-
- dev = udev_device_new_from_subsystem_sysname (udev, "block", disk_name);
- if (dev != NULL)
- {
- prop = udev_device_get_property_value (dev, attr);
- if (prop) {
- output = strdup (prop);
- DEBUG ("disk plugin: renaming %s => %s", disk_name, output);
- }
- udev_device_unref (dev);
- }
- return output;
-}
-#endif
-
-#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)
- {
- DEBUG ("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)
- {
- DEBUG ("CFDictionaryGetValue (%s) failed.", key);
- return (-1LL);
- }
-
- if (!CFNumberGetValue (val_obj, kCFNumberSInt64Type, &val_int))
- {
- DEBUG ("CFNumberGetValue (%s) failed.", key);
- return (-1LL);
- }
-
- return (val_int);
-}
-#endif /* HAVE_IOKIT_IOKITLIB_H */
-
-static int disk_read (void)
-{
-#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;
- CFStringRef tmp_cf_string_ref;
- 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[DATA_MAX_NAME_LEN];
- char disk_name_bsd[DATA_MAX_NAME_LEN];
-
- /* Get the list of all disk objects. */
- if (IOServiceGetMatchingServices (io_master_port,
- IOServiceMatching (kIOBlockStorageDriverClass),
- &disk_list) != kIOReturnSuccess)
- {
- ERROR ("disk plugin: IOServiceGetMatchingServices failed.");
- return (-1);
- }
-
- 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.. */
- DEBUG ("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)
- {
- ERROR ("disk-plugin: IORegistryEntryCreateCFProperties failed.");
- IOObjectRelease (disk_child);
- IOObjectRelease (disk);
- continue;
- }
-
- if (props_dict == NULL)
- {
- DEBUG ("IORegistryEntryCreateCFProperties (disk) failed.");
- IOObjectRelease (disk_child);
- IOObjectRelease (disk);
- continue;
- }
-
- /* tmp_cf_string_ref doesn't need to be released. */
- tmp_cf_string_ref = (CFStringRef) CFDictionaryGetValue (props_dict,
- CFSTR(kIOBSDNameKey));
- if (!tmp_cf_string_ref)
- {
- DEBUG ("disk plugin: CFDictionaryGetValue("
- "kIOBSDNameKey) failed.");
- CFRelease (props_dict);
- IOObjectRelease (disk_child);
- IOObjectRelease (disk);
- continue;
- }
- assert (CFGetTypeID (tmp_cf_string_ref) == CFStringGetTypeID ());
-
- memset (disk_name_bsd, 0, sizeof (disk_name_bsd));
- CFStringGetCString (tmp_cf_string_ref,
- disk_name_bsd, sizeof (disk_name_bsd),
- kCFStringEncodingUTF8);
- if (disk_name_bsd[0] == 0)
- {
- ERROR ("disk plugin: CFStringGetCString() failed.");
- CFRelease (props_dict);
- IOObjectRelease (disk_child);
- IOObjectRelease (disk);
- continue;
- }
- DEBUG ("disk plugin: disk_name_bsd = \"%s\"", disk_name_bsd);
-
- stats_dict = (CFDictionaryRef) CFDictionaryGetValue (props_dict,
- CFSTR (kIOBlockStorageDriverStatisticsKey));
-
- if (stats_dict == NULL)
- {
- DEBUG ("disk plugin: CFDictionaryGetValue ("
- "%s) failed.",
- kIOBlockStorageDriverStatisticsKey);
- CFRelease (props_dict);
- IOObjectRelease (disk_child);
- IOObjectRelease (disk);
- continue;
- }
-
- if (IORegistryEntryCreateCFProperties (disk_child,
- (CFMutableDictionaryRef *) &child_dict,
- kCFAllocatorDefault,
- kNilOptions)
- != kIOReturnSuccess)
- {
- DEBUG ("disk plugin: IORegistryEntryCreateCFProperties ("
- "disk_child) failed.");
- IOObjectRelease (disk_child);
- CFRelease (props_dict);
- IOObjectRelease (disk);
- continue;
- }
-
- /* kIOBSDNameKey */
- 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);
- /* This property describes the number of nanoseconds spent
- * performing writes since the block storage driver was
- * instantiated. It is one of the statistic entries listed
- * under the top-level kIOBlockStorageDriverStatisticsKey
- * property table. It has an OSNumber value. */
- write_tme = dict_get_value (stats_dict,
- kIOBlockStorageDriverStatisticsTotalWriteTimeKey);
-
- if (use_bsd_name)
- sstrncpy (disk_name, disk_name_bsd, sizeof (disk_name));
- else
- ssnprintf (disk_name, sizeof (disk_name), "%i-%i",
- disk_major, disk_minor);
- DEBUG ("disk plugin: disk_name = \"%s\"", disk_name);
-
- if ((read_byt != -1LL) || (write_byt != -1LL))
- disk_submit (disk_name, "disk_octets", read_byt, write_byt);
- if ((read_ops != -1LL) || (write_ops != -1LL))
- disk_submit (disk_name, "disk_ops", read_ops, write_ops);
- if ((read_tme != -1LL) || (write_tme != -1LL))
- disk_submit (disk_name, "disk_time",
- read_tme / 1000,
- write_tme / 1000);
-
- 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 *fields[32];
- int numfields;
- int fieldshift = 0;
-
- int minor = 0;
-
- derive_t read_sectors = 0;
- derive_t write_sectors = 0;
-
- derive_t read_ops = 0;
- derive_t read_merged = 0;
- derive_t read_time = 0;
- derive_t write_ops = 0;
- derive_t write_merged = 0;
- derive_t write_time = 0;
- gauge_t in_progress = NAN;
- derive_t io_time = 0;
- derive_t weighted_time = 0;
- int is_disk = 0;
-
- diskstats_t *ds, *pre_ds;
-
- if ((fh = fopen ("/proc/diskstats", "r")) == NULL)
- {
- fh = fopen ("/proc/partitions", "r");
- if (fh == NULL)
- {
- ERROR ("disk plugin: fopen (/proc/{diskstats,partitions}) failed.");
- return (-1);
- }
-
- /* Kernel is 2.4.* */
- fieldshift = 1;
- }
-
-#if HAVE_LIBUDEV
- handle_udev = udev_new();
-#endif
-
- while (fgets (buffer, sizeof (buffer), fh) != NULL)
- {
- char *disk_name;
- char *output_name;
- char *alt_name;
-
- numfields = strsplit (buffer, fields, 32);
-
- if ((numfields != (14 + fieldshift)) && (numfields != 7))
- continue;
-
- minor = atoll (fields[1]);
-
- disk_name = fields[2 + fieldshift];
-
- for (ds = disklist, pre_ds = disklist; ds != NULL; pre_ds = ds, ds = ds->next)
- if (strcmp (disk_name, ds->name) == 0)
- break;
-
- if (ds == NULL)
- {
- if ((ds = (diskstats_t *) calloc (1, sizeof (diskstats_t))) == NULL)
- continue;
-
- if ((ds->name = strdup (disk_name)) == NULL)
- {
- free (ds);
- continue;
- }
-
- if (pre_ds == NULL)
- disklist = ds;
- else
- pre_ds->next = ds;
- }
-
- is_disk = 0;
- if (numfields == 7)
- {
- /* Kernel 2.6, Partition */
- read_ops = atoll (fields[3]);
- read_sectors = atoll (fields[4]);
- write_ops = atoll (fields[5]);
- write_sectors = atoll (fields[6]);
- }
- else if (numfields == (14 + fieldshift))
- {
- read_ops = atoll (fields[3 + fieldshift]);
- write_ops = atoll (fields[7 + fieldshift]);
-
- read_sectors = atoll (fields[5 + fieldshift]);
- write_sectors = atoll (fields[9 + fieldshift]);
-
- if ((fieldshift == 0) || (minor == 0))
- {
- is_disk = 1;
- read_merged = atoll (fields[4 + fieldshift]);
- read_time = atoll (fields[6 + fieldshift]);
- write_merged = atoll (fields[8 + fieldshift]);
- write_time = atoll (fields[10+ fieldshift]);
-
- in_progress = atof (fields[11 + fieldshift]);
-
- io_time = atof (fields[12 + fieldshift]);
- weighted_time = atof (fields[13 + fieldshift]);
- }
- }
- else
- {
- DEBUG ("numfields = %i; => unknown file format.", numfields);
- continue;
- }
-
- {
- derive_t diff_read_sectors;
- derive_t diff_write_sectors;
-
- /* If the counter wraps around, it's only 32 bits.. */
- if (read_sectors < ds->read_sectors)
- diff_read_sectors = 1 + read_sectors
- + (UINT_MAX - ds->read_sectors);
- else
- diff_read_sectors = read_sectors - ds->read_sectors;
- if (write_sectors < ds->write_sectors)
- diff_write_sectors = 1 + write_sectors
- + (UINT_MAX - ds->write_sectors);
- else
- diff_write_sectors = write_sectors - ds->write_sectors;
-
- ds->read_bytes += 512 * diff_read_sectors;
- ds->write_bytes += 512 * diff_write_sectors;
- ds->read_sectors = read_sectors;
- ds->write_sectors = write_sectors;
- }
-
- /* Calculate the average time an io-op needs to complete */
- if (is_disk)
- {
- derive_t diff_read_ops;
- derive_t diff_write_ops;
- derive_t diff_read_time;
- derive_t diff_write_time;
-
- if (read_ops < ds->read_ops)
- diff_read_ops = 1 + read_ops
- + (UINT_MAX - ds->read_ops);
- else
- diff_read_ops = read_ops - ds->read_ops;
- DEBUG ("disk plugin: disk_name = %s; read_ops = %"PRIi64"; "
- "ds->read_ops = %"PRIi64"; diff_read_ops = %"PRIi64";",
- disk_name,
- read_ops, ds->read_ops, diff_read_ops);
-
- if (write_ops < ds->write_ops)
- diff_write_ops = 1 + write_ops
- + (UINT_MAX - ds->write_ops);
- else
- diff_write_ops = write_ops - ds->write_ops;
-
- if (read_time < ds->read_time)
- diff_read_time = 1 + read_time
- + (UINT_MAX - ds->read_time);
- else
- diff_read_time = read_time - ds->read_time;
-
- if (write_time < ds->write_time)
- diff_write_time = 1 + write_time
- + (UINT_MAX - ds->write_time);
- else
- diff_write_time = write_time - ds->write_time;
-
- if (diff_read_ops != 0)
- ds->avg_read_time += disk_calc_time_incr (
- diff_read_time, diff_read_ops);
- if (diff_write_ops != 0)
- ds->avg_write_time += disk_calc_time_incr (
- diff_write_time, diff_write_ops);
-
- ds->read_ops = read_ops;
- ds->read_time = read_time;
- ds->write_ops = write_ops;
- ds->write_time = write_time;
- } /* if (is_disk) */
-
- /* Don't write to the RRDs if we've just started.. */
- ds->poll_count++;
- if (ds->poll_count <= 2)
- {
- DEBUG ("disk plugin: (ds->poll_count = %i) <= "
- "(min_poll_count = 2); => Not writing.",
- ds->poll_count);
- continue;
- }
-
- if ((read_ops == 0) && (write_ops == 0))
- {
- DEBUG ("disk plugin: ((read_ops == 0) && "
- "(write_ops == 0)); => Not writing.");
- continue;
- }
-
- output_name = disk_name;
-
-#if HAVE_LIBUDEV
- alt_name = disk_udev_attr_name (handle_udev, disk_name,
- conf_udev_name_attr);
-#else
- alt_name = NULL;
-#endif
- if (alt_name != NULL)
- output_name = alt_name;
-
- if ((ds->read_bytes != 0) || (ds->write_bytes != 0))
- disk_submit (output_name, "disk_octets",
- ds->read_bytes, ds->write_bytes);
-
- if ((ds->read_ops != 0) || (ds->write_ops != 0))
- disk_submit (output_name, "disk_ops",
- read_ops, write_ops);
-
- if ((ds->avg_read_time != 0) || (ds->avg_write_time != 0))
- disk_submit (output_name, "disk_time",
- ds->avg_read_time, ds->avg_write_time);
-
- if (is_disk)
- {
- disk_submit (output_name, "disk_merged",
- read_merged, write_merged);
- submit_in_progress (output_name, in_progress);
- submit_io_time (output_name, io_time, weighted_time);
- } /* if (is_disk) */
-
- /* release udev-based alternate name, if allocated */
- free(alt_name);
- } /* while (fgets (buffer, sizeof (buffer), fh) != NULL) */
-
-#if HAVE_LIBUDEV
- udev_unref(handle_udev);
-#endif
-
- fclose (fh);
-/* #endif defined(KERNEL_LINUX) */
-
-#elif HAVE_LIBKSTAT
-# if HAVE_KSTAT_IO_T_WRITES && HAVE_KSTAT_IO_T_NWRITES && HAVE_KSTAT_IO_T_WTIME
-# define KIO_ROCTETS reads
-# define KIO_WOCTETS writes
-# define KIO_ROPS nreads
-# define KIO_WOPS nwrites
-# define KIO_RTIME rtime
-# define KIO_WTIME wtime
-# elif HAVE_KSTAT_IO_T_NWRITTEN && HAVE_KSTAT_IO_T_WRITES && HAVE_KSTAT_IO_T_WTIME
-# define KIO_ROCTETS nread
-# define KIO_WOCTETS nwritten
-# define KIO_ROPS reads
-# define KIO_WOPS writes
-# define KIO_RTIME rtime
-# define KIO_WTIME wtime
-# else
-# error "kstat_io_t does not have the required members"
-# endif
- static kstat_io_t kio;
- int i;
-
- if (kc == NULL)
- return (-1);
-
- for (i = 0; i < numdisk; i++)
- {
- if (kstat_read (kc, ksp[i], &kio) == -1)
- continue;
-
- if (strncmp (ksp[i]->ks_class, "disk", 4) == 0)
- {
- disk_submit (ksp[i]->ks_name, "disk_octets",
- kio.KIO_ROCTETS, kio.KIO_WOCTETS);
- disk_submit (ksp[i]->ks_name, "disk_ops",
- kio.KIO_ROPS, kio.KIO_WOPS);
- /* FIXME: Convert this to microseconds if necessary */
- disk_submit (ksp[i]->ks_name, "disk_time",
- kio.KIO_RTIME, kio.KIO_WTIME);
- }
- else if (strncmp (ksp[i]->ks_class, "partition", 9) == 0)
- {
- disk_submit (ksp[i]->ks_name, "disk_octets",
- kio.KIO_ROCTETS, kio.KIO_WOCTETS);
- disk_submit (ksp[i]->ks_name, "disk_ops",
- kio.KIO_ROPS, kio.KIO_WOPS);
- }
- }
-/* #endif defined(HAVE_LIBKSTAT) */
-
-#elif defined(HAVE_LIBSTATGRAB)
- sg_disk_io_stats *ds;
-# if HAVE_LIBSTATGRAB_0_90
- size_t disks;
-# else
- int disks;
-#endif
- int counter;
- char name[DATA_MAX_NAME_LEN];
-
- if ((ds = sg_get_disk_io_stats(&disks)) == NULL)
- return (0);
-
- for (counter=0; counter < disks; counter++) {
- strncpy(name, ds->disk_name, sizeof(name));
- name[sizeof(name)-1] = '\0'; /* strncpy doesn't terminate longer strings */
- disk_submit (name, "disk_octets", ds->read_bytes, ds->write_bytes);
- ds++;
- }
-/* #endif defined(HAVE_LIBSTATGRAB) */
-
-#elif defined(HAVE_PERFSTAT)
- derive_t read_sectors;
- derive_t write_sectors;
- derive_t read_time;
- derive_t write_time;
- derive_t read_ops;
- derive_t write_ops;
- perfstat_id_t firstpath;
- int rnumdisk;
- int i;
-
- if ((numdisk = perfstat_disk(NULL, NULL, sizeof(perfstat_disk_t), 0)) < 0)
- {
- char errbuf[1024];
- WARNING ("disk plugin: perfstat_disk: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
-
- if (numdisk != pnumdisk || stat_disk==NULL) {
- if (stat_disk!=NULL)
- free(stat_disk);
- stat_disk = (perfstat_disk_t *)calloc(numdisk, sizeof(perfstat_disk_t));
- }
- pnumdisk = numdisk;
-
- firstpath.name[0]='\0';
- if ((rnumdisk = perfstat_disk(&firstpath, stat_disk, sizeof(perfstat_disk_t), numdisk)) < 0)
- {
- char errbuf[1024];
- WARNING ("disk plugin: perfstat_disk : %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
-
- for (i = 0; i < rnumdisk; i++)
- {
- read_sectors = stat_disk[i].rblks*stat_disk[i].bsize;
- write_sectors = stat_disk[i].wblks*stat_disk[i].bsize;
- disk_submit (stat_disk[i].name, "disk_octets", read_sectors, write_sectors);
-
- read_ops = stat_disk[i].xrate;
- write_ops = stat_disk[i].xfers - stat_disk[i].xrate;
- disk_submit (stat_disk[i].name, "disk_ops", read_ops, write_ops);
-
- read_time = stat_disk[i].rserv;
- read_time *= ((double)(_system_configuration.Xint)/(double)(_system_configuration.Xfrac)) / 1000000.0;
- write_time = stat_disk[i].wserv;
- write_time *= ((double)(_system_configuration.Xint)/(double)(_system_configuration.Xfrac)) / 1000000.0;
- disk_submit (stat_disk[i].name, "disk_time", read_time, write_time);
- }
-#endif /* defined(HAVE_PERFSTAT) */
-
- return (0);
-} /* int disk_read */
-
-void module_register (void)
-{
- plugin_register_config ("disk", disk_config,
- config_keys, config_keys_num);
- plugin_register_init ("disk", disk_init);
- plugin_register_read ("disk", disk_read);
-} /* void module_register */