You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
151 lines
4.2 KiB
151 lines
4.2 KiB
#include <stdint.h>
|
|
#include <CoreFoundation/CoreFoundation.h>
|
|
#include "iostat_darwin.h"
|
|
|
|
#define IOKIT 1 /* to get io_name_t in device_types.h */
|
|
|
|
#include <IOKit/IOKitLib.h>
|
|
#include <IOKit/storage/IOBlockStorageDriver.h>
|
|
#include <IOKit/storage/IOMedia.h>
|
|
#include <IOKit/IOBSD.h>
|
|
|
|
#include <mach/mach_host.h>
|
|
|
|
static int getdrivestat(io_registry_entry_t d, DriveStats *stat);
|
|
static int fillstat(io_registry_entry_t d, DriveStats *stat);
|
|
|
|
int
|
|
readdrivestat(DriveStats a[], int n)
|
|
{
|
|
mach_port_t port;
|
|
CFMutableDictionaryRef match;
|
|
io_iterator_t drives;
|
|
io_registry_entry_t d;
|
|
kern_return_t status;
|
|
int na, rv;
|
|
|
|
IOMasterPort(bootstrap_port, &port);
|
|
match = IOServiceMatching("IOMedia");
|
|
CFDictionaryAddValue(match, CFSTR(kIOMediaWholeKey), kCFBooleanTrue);
|
|
status = IOServiceGetMatchingServices(port, match, &drives);
|
|
if(status != KERN_SUCCESS)
|
|
return -1;
|
|
|
|
na = 0;
|
|
while(na < n && (d=IOIteratorNext(drives)) > 0){
|
|
rv = getdrivestat(d, &a[na]);
|
|
if(rv < 0)
|
|
return -1;
|
|
if(rv > 0)
|
|
na++;
|
|
IOObjectRelease(d);
|
|
}
|
|
IOObjectRelease(drives);
|
|
return na;
|
|
}
|
|
|
|
static int
|
|
getdrivestat(io_registry_entry_t d, DriveStats *stat)
|
|
{
|
|
io_registry_entry_t parent;
|
|
kern_return_t status;
|
|
CFDictionaryRef props;
|
|
CFStringRef name;
|
|
CFNumberRef num;
|
|
int rv;
|
|
|
|
memset(stat, 0, sizeof *stat);
|
|
status = IORegistryEntryGetParentEntry(d, kIOServicePlane, &parent);
|
|
if(status != KERN_SUCCESS)
|
|
return -1;
|
|
if(!IOObjectConformsTo(parent, "IOBlockStorageDriver")){
|
|
IOObjectRelease(parent);
|
|
return 0;
|
|
}
|
|
|
|
status = IORegistryEntryCreateCFProperties(d, (CFMutableDictionaryRef *)&props, kCFAllocatorDefault, kNilOptions);
|
|
if(status != KERN_SUCCESS){
|
|
IOObjectRelease(parent);
|
|
return -1;
|
|
}
|
|
name = (CFStringRef)CFDictionaryGetValue(props, CFSTR(kIOBSDNameKey));
|
|
CFStringGetCString(name, stat->name, NAMELEN, CFStringGetSystemEncoding());
|
|
num = (CFNumberRef)CFDictionaryGetValue(props, CFSTR(kIOMediaSizeKey));
|
|
CFNumberGetValue(num, kCFNumberSInt64Type, &stat->size);
|
|
num = (CFNumberRef)CFDictionaryGetValue(props, CFSTR(kIOMediaPreferredBlockSizeKey));
|
|
CFNumberGetValue(num, kCFNumberSInt64Type, &stat->blocksize);
|
|
CFRelease(props);
|
|
|
|
rv = fillstat(parent, stat);
|
|
IOObjectRelease(parent);
|
|
if(rv < 0)
|
|
return -1;
|
|
return 1;
|
|
}
|
|
|
|
static struct {
|
|
char *key;
|
|
size_t off;
|
|
} statstab[] = {
|
|
{kIOBlockStorageDriverStatisticsBytesReadKey, offsetof(DriveStats, read)},
|
|
{kIOBlockStorageDriverStatisticsBytesWrittenKey, offsetof(DriveStats, written)},
|
|
{kIOBlockStorageDriverStatisticsReadsKey, offsetof(DriveStats, nread)},
|
|
{kIOBlockStorageDriverStatisticsWritesKey, offsetof(DriveStats, nwrite)},
|
|
{kIOBlockStorageDriverStatisticsTotalReadTimeKey, offsetof(DriveStats, readtime)},
|
|
{kIOBlockStorageDriverStatisticsTotalWriteTimeKey, offsetof(DriveStats, writetime)},
|
|
{kIOBlockStorageDriverStatisticsLatentReadTimeKey, offsetof(DriveStats, readlat)},
|
|
{kIOBlockStorageDriverStatisticsLatentWriteTimeKey, offsetof(DriveStats, writelat)},
|
|
};
|
|
|
|
static int
|
|
fillstat(io_registry_entry_t d, DriveStats *stat)
|
|
{
|
|
CFDictionaryRef props, v;
|
|
CFNumberRef num;
|
|
kern_return_t status;
|
|
typeof(statstab[0]) *bp, *ep;
|
|
|
|
status = IORegistryEntryCreateCFProperties(d, (CFMutableDictionaryRef *)&props, kCFAllocatorDefault, kNilOptions);
|
|
if(status != KERN_SUCCESS)
|
|
return -1;
|
|
v = (CFDictionaryRef)CFDictionaryGetValue(props, CFSTR(kIOBlockStorageDriverStatisticsKey));
|
|
if(v == NULL){
|
|
CFRelease(props);
|
|
return -1;
|
|
}
|
|
|
|
ep = &statstab[sizeof(statstab)/sizeof(statstab[0])];
|
|
for(bp = &statstab[0]; bp < ep; bp++){
|
|
CFStringRef s;
|
|
|
|
s = CFStringCreateWithCString(kCFAllocatorDefault, bp->key, CFStringGetSystemEncoding());
|
|
num = (CFNumberRef)CFDictionaryGetValue(v, s);
|
|
if(num)
|
|
CFNumberGetValue(num, kCFNumberSInt64Type, ((char*)stat)+bp->off);
|
|
CFRelease(s);
|
|
}
|
|
|
|
CFRelease(props);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
readcpustat(CPUStats *stats)
|
|
{
|
|
mach_port_t port;
|
|
host_cpu_load_info_data_t load;
|
|
mach_msg_type_number_t n;
|
|
kern_return_t status;
|
|
|
|
port = mach_host_self();
|
|
n = HOST_CPU_LOAD_INFO_COUNT;
|
|
status = host_statistics(port, HOST_CPU_LOAD_INFO, (host_info_t)&load, &n);
|
|
if(status != KERN_SUCCESS)
|
|
return -1;
|
|
stats->user = load.cpu_ticks[CPU_STATE_USER];
|
|
stats->nice = load.cpu_ticks[CPU_STATE_NICE];
|
|
stats->sys = load.cpu_ticks[CPU_STATE_SYSTEM];
|
|
stats->idle = load.cpu_ticks[CPU_STATE_IDLE];
|
|
return 0;
|
|
}
|