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darwin disk_usage impl

This commit is contained in:
Doug MacEachern 2007-10-14 00:18:28 +00:00
parent bb970e5ca1
commit 4e124513d0
1 changed files with 64 additions and 1 deletions
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65
src/os/darwin/darwin_sigar.c
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@ -39,6 +39,12 @@
#include <mach/vm_map.h>
#include <mach/shared_memory_server.h>
#include <Gestalt.h>
#include <CFString.h>
#include <CoreFoundation/CoreFoundation.h>
#include <IOKit/IOBSD.h>
#include <IOKit/IOKitLib.h>
#include <IOKit/IOTypes.h>
#include <IOKit/storage/IOBlockStorageDriver.h>
#else
#include <sys/dkstat.h>
#include <sys/types.h>
@ -1535,10 +1541,67 @@ int sigar_file_system_list_get(sigar_t *sigar,
return SIGAR_OK;
}
#ifdef DARWIN
#define IoStatGetValue(key, val) \
if ((number = (CFNumberRef)CFDictionaryGetValue(stats, CFSTR(kIOBlockStorageDriverStatistics##key)))) \
CFNumberGetValue(number, kCFNumberSInt64Type, &val)
#endif
int sigar_disk_usage_get(sigar_t *sigar, const char *name,
sigar_disk_usage_t *usage)
sigar_disk_usage_t *disk)
{
#if defined(DARWIN)
kern_return_t status;
io_registry_entry_t parent;
io_service_t service;
CFDictionaryRef props;
CFNumberRef number;
SIGAR_DISK_STATS_INIT(disk);
/* e.g. name == "disk0" */
service = IOServiceGetMatchingService(kIOMasterPortDefault,
IOBSDNameMatching(kIOMasterPortDefault, 0, name));
if (!service) {
return errno;
}
status = IORegistryEntryGetParentEntry(service, kIOServicePlane, &parent);
if (status != KERN_SUCCESS) {
IOObjectRelease(service);
return status;
}
status = IORegistryEntryCreateCFProperties(parent,
(CFMutableDictionaryRef *)&props,
kCFAllocatorDefault,
kNilOptions);
if (props) {
CFDictionaryRef stats =
(CFDictionaryRef)CFDictionaryGetValue(props,
CFSTR(kIOBlockStorageDriverStatisticsKey));
if (stats) {
IoStatGetValue(ReadsKey, disk->reads);
IoStatGetValue(BytesReadKey, disk->read_bytes);
IoStatGetValue(TotalReadTimeKey, disk->rtime);
IoStatGetValue(WritesKey, disk->writes);
IoStatGetValue(BytesWrittenKey, disk->write_bytes);
IoStatGetValue(TotalWriteTimeKey, disk->wtime);
disk->time = disk->rtime + disk->wtime;
}
CFRelease(props);
}
IOObjectRelease(service);
IOObjectRelease(parent);
return SIGAR_OK;
#else
return SIGAR_ENOTIMPL;
#endif
}
int sigar_file_system_usage_get(sigar_t *sigar,