io_registry_entry_t disk;
io_registry_entry_t disk_child;
io_iterator_t disk_list;
- CFDictionaryRef props_dict;
+ CFMutableDictionaryRef props_dict, child_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;
+ signed long long read_ops, read_byt, read_tme;
+ signed long long write_ops, write_byt, write_tme;
- int disk_major;
- int disk_minor;
+ int disk_major, disk_minor;
char disk_name[DATA_MAX_NAME_LEN];
- char disk_name_bsd[DATA_MAX_NAME_LEN];
+ char child_disk_name_bsd[DATA_MAX_NAME_LEN], props_disk_name_bsd[DATA_MAX_NAME_LEN];
/* Get the list of all disk objects. */
- if (IOServiceGetMatchingServices (io_master_port,
- IOServiceMatching (kIOBlockStorageDriverClass),
- &disk_list) != kIOReturnSuccess)
- {
+ if (IOServiceGetMatchingServices (io_master_port, IOServiceMatching (kIOBlockStorageDriverClass), &disk_list) != kIOReturnSuccess) {
ERROR ("disk plugin: IOServiceGetMatchingServices failed.");
return (-1);
}
- while ((disk = IOIteratorNext (disk_list)) != 0)
- {
+ 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.. */
+ /* get child of disk entry and corresponding property dictionary */
+ if ((status = IORegistryEntryGetChildEntry (disk, kIOServicePlane, &disk_child)) != kIOReturnSuccess) {
+ /* This fails for example for DVD/CD drives, which we want to ignore anyway */
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.");
+ if (IORegistryEntryCreateCFProperties (disk_child, (CFMutableDictionaryRef *) &child_dict, kCFAllocatorDefault, kNilOptions) != kIOReturnSuccess || child_dict == NULL) {
+ ERROR ("disk plugin: IORegistryEntryCreateCFProperties (disk_child) failed.");
IOObjectRelease (disk_child);
IOObjectRelease (disk);
continue;
}
- if (props_dict == NULL)
- {
- DEBUG ("IORegistryEntryCreateCFProperties (disk) failed.");
- IOObjectRelease (disk_child);
- IOObjectRelease (disk);
- continue;
+ /* extract name and major/minor numbers */
+ memset (child_disk_name_bsd, 0, sizeof (child_disk_name_bsd));
+ tmp_cf_string_ref = (CFStringRef) CFDictionaryGetValue (child_dict, CFSTR(kIOBSDNameKey));
+ if (tmp_cf_string_ref) {
+ assert (CFGetTypeID (tmp_cf_string_ref) == CFStringGetTypeID ());
+ CFStringGetCString (tmp_cf_string_ref, child_disk_name_bsd, sizeof (child_disk_name_bsd), kCFStringEncodingUTF8);
}
+ disk_major = (int) dict_get_value (child_dict, kIOBSDMajorKey);
+ disk_minor = (int) dict_get_value (child_dict, kIOBSDMinorKey);
+ DEBUG ("disk plugin: child_disk_name_bsd=\"%s\" major=%d minor=%d", child_disk_name_bsd, disk_major, disk_minor);
+ CFRelease (child_dict);
+ IOObjectRelease (disk_child);
- /* 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);
+ /* get property dictionary of the disk entry itself */
+ if (IORegistryEntryCreateCFProperties (disk, (CFMutableDictionaryRef *) &props_dict, kCFAllocatorDefault, kNilOptions) != kIOReturnSuccess || props_dict == NULL) {
+ ERROR ("disk-plugin: IORegistryEntryCreateCFProperties failed.");
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;
+ /* extract name and stats dictionary */
+ memset (props_disk_name_bsd, 0, sizeof (props_disk_name_bsd));
+ tmp_cf_string_ref = (CFStringRef) CFDictionaryGetValue (props_dict, CFSTR(kIOBSDNameKey));
+ if (tmp_cf_string_ref) {
+ assert (CFGetTypeID (tmp_cf_string_ref) == CFStringGetTypeID ());
+ CFStringGetCString (tmp_cf_string_ref, props_disk_name_bsd, sizeof (props_disk_name_bsd), kCFStringEncodingUTF8);
}
- 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);
+ stats_dict = (CFDictionaryRef) CFDictionaryGetValue (props_dict, CFSTR (kIOBlockStorageDriverStatisticsKey));
+ if (stats_dict == NULL) {
+ ERROR ("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;
+ DEBUG ("disk plugin: props_disk_name_bsd=\"%s\"", props_disk_name_bsd);
+
+ /* choose name */
+ if (use_bsd_name) {
+ if (child_disk_name_bsd[0] != 0)
+ sstrncpy (disk_name, child_disk_name_bsd, sizeof (disk_name));
+ else if (props_disk_name_bsd[0] != 0)
+ sstrncpy (disk_name, props_disk_name_bsd, sizeof (disk_name));
+ else {
+ ERROR ("disk plugin: can't find bsd disk name.");
+ ssnprintf (disk_name, sizeof (disk_name), "%i-%i", disk_major, disk_minor);
+ }
}
-
- /* 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);
+ ssnprintf (disk_name, sizeof (disk_name), "%i-%i", disk_major, disk_minor);
+
+ /* extract the stats */
+ 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);
+ CFRelease (props_dict);
+ IOObjectRelease (disk);
+ /* and submit */
+ 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);
+ 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 */
projects / collectd.git / blobdiff