Various plugins: Change various plugins to use "derive" internally.
[collectd.git] / src / disk.c
index 8feaa8d..697d850 100644 (file)
@@ -1,6 +1,7 @@
 /**
  * collectd - src/disk.c
- * Copyright (C) 2005-2007  Florian octo Forster
+ * Copyright (C) 2005-2010  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
  *
  * Authors:
  *   Florian octo Forster <octo at verplant.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>
 #  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;
 /* #endif HAVE_IOKIT_IOKITLIB_H */
@@ -70,19 +85,19 @@ typedef struct diskstats
        /* This overflows in roughly 1361 years */
        unsigned int poll_count;
 
-       counter_t read_sectors;
-       counter_t write_sectors;
+       derive_t read_sectors;
+       derive_t write_sectors;
 
-       counter_t read_bytes;
-       counter_t write_bytes;
+       derive_t read_bytes;
+       derive_t write_bytes;
 
-       counter_t read_ops;
-       counter_t write_ops;
-       counter_t read_time;
-       counter_t write_time;
+       derive_t read_ops;
+       derive_t write_ops;
+       derive_t read_time;
+       derive_t write_time;
 
-       counter_t avg_read_time;
-       counter_t avg_write_time;
+       derive_t avg_read_time;
+       derive_t avg_write_time;
 
        struct diskstats *next;
 } diskstats_t;
@@ -97,15 +112,59 @@ 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
 
+static const char *config_keys[] =
+{
+       "Disk",
+       "IgnoreSelected"
+};
+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
+  {
+    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 (),
@@ -153,23 +212,27 @@ static int disk_init (void)
 
 static void disk_submit (const char *plugin_instance,
                const char *type,
-               counter_t read, counter_t write)
+               derive_t read, derive_t write)
 {
        value_t values[2];
        value_list_t vl = VALUE_LIST_INIT;
 
-       values[0].counter = read;
-       values[1].counter = write;
+       /* 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;
-       vl.time = time (NULL);
-       strcpy (vl.host, hostname_g);
-       strcpy (vl.plugin, "disk");
-       strncpy (vl.plugin_instance, plugin_instance,
+       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 (type, &vl);
+       plugin_dispatch_values (&vl);
 } /* void disk_submit */
 
 #if HAVE_IOKIT_IOKITLIB_H
@@ -326,7 +389,8 @@ static int disk_read (void)
                write_tme = dict_get_value (stats_dict,
                                kIOBlockStorageDriverStatisticsTotalWriteTimeKey);
 
-               if (snprintf (disk_name, 64, "%i-%i", disk_major, disk_minor) >= 64)
+               if (ssnprintf (disk_name, sizeof (disk_name),
+                               "%i-%i", disk_major, disk_minor) >= sizeof (disk_name))
                {
                        DEBUG ("snprintf (major, minor) failed.");
                        CFRelease (child_dict);
@@ -365,15 +429,15 @@ static int disk_read (void)
        int major = 0;
        int minor = 0;
 
-       counter_t read_sectors  = 0;
-       counter_t write_sectors = 0;
+       derive_t read_sectors  = 0;
+       derive_t write_sectors = 0;
 
-       counter_t read_ops      = 0;
-       counter_t read_merged   = 0;
-       counter_t read_time     = 0;
-       counter_t write_ops     = 0;
-       counter_t write_merged  = 0;
-       counter_t write_time    = 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;
        int is_disk = 0;
 
        diskstats_t *ds, *pre_ds;
@@ -403,7 +467,7 @@ static int disk_read (void)
                major = atoll (fields[0]);
                minor = atoll (fields[1]);
 
-               disk_name = fields[2];
+               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)
@@ -459,8 +523,8 @@ static int disk_read (void)
                }
 
                {
-                       counter_t diff_read_sectors;
-                       counter_t diff_write_sectors;
+                       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)
@@ -483,18 +547,18 @@ static int disk_read (void)
                /* Calculate the average time an io-op needs to complete */
                if (is_disk)
                {
-                       counter_t diff_read_ops;
-                       counter_t diff_write_ops;
-                       counter_t diff_read_time;
-                       counter_t diff_write_time;
+                       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 = %llu; "
-                                       "ds->read_ops = %llu; diff_read_ops = %llu;",
+                       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);
 
@@ -617,13 +681,84 @@ static int disk_read (void)
                                        kio.KIO_ROPS, kio.KIO_WOPS);
                }
        }
-#endif /* defined(HAVE_LIBKSTAT) */
+/* #endif defined(HAVE_LIBKSTAT) */
+
+#elif defined(HAVE_LIBSTATGRAB)
+       sg_disk_io_stats *ds;
+       int disks, 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_init ("disk", disk_init);
-       plugin_register_read ("disk", disk_read);
+  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 */