/usr/share/gocode/src/github.com/shirou/gopsutil/disk/disk_darwin_cgo.go is in golang-github-shirou-gopsutil-dev 2.17.08-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | // +build darwin
// +build cgo
package disk
/*
#cgo LDFLAGS: -lobjc -framework Foundation -framework IOKit
#include <stdint.h>
// ### enough?
const int MAX_DISK_NAME = 100;
typedef struct
{
char DiskName[MAX_DISK_NAME];
int64_t Reads;
int64_t Writes;
int64_t ReadBytes;
int64_t WriteBytes;
int64_t ReadTime;
int64_t WriteTime;
} DiskInfo;
#include "disk_darwin.h"
*/
import "C"
import (
"errors"
"strings"
"unsafe"
"github.com/shirou/gopsutil/internal/common"
)
func IOCounters(names ...string) (map[string]IOCountersStat, error) {
if C.StartIOCounterFetch() == 0 {
return nil, errors.New("Unable to fetch disk list")
}
// Clean up when we are done.
defer C.EndIOCounterFetch()
ret := make(map[string]IOCountersStat, 0)
for {
res := C.FetchNextDisk()
if res == -1 {
return nil, errors.New("Unable to fetch disk information")
} else if res == 0 {
break // done
}
di := C.DiskInfo{}
if C.ReadDiskInfo((*C.DiskInfo)(unsafe.Pointer(&di))) == -1 {
return nil, errors.New("Unable to fetch disk properties")
}
// Used to only get the necessary part of the C string.
isRuneNull := func(r rune) bool {
return r == '\u0000'
}
// Map from the darwin-specific C struct to the Go type
//
// ### missing: IopsInProgress, WeightedIO, MergedReadCount,
// MergedWriteCount, SerialNumber
// IOKit can give us at least the serial number I think...
d := IOCountersStat{
// Note: The Go type wants unsigned values, but CFNumberGetValue
// doesn't appear to be able to give us unsigned values. So, we
// cast, and hope for the best.
ReadBytes: uint64(di.ReadBytes),
WriteBytes: uint64(di.WriteBytes),
ReadCount: uint64(di.Reads),
WriteCount: uint64(di.Writes),
ReadTime: uint64(di.ReadTime),
WriteTime: uint64(di.WriteTime),
IoTime: uint64(di.ReadTime + di.WriteTime),
Name: strings.TrimFunc(C.GoStringN(&di.DiskName[0], C.MAX_DISK_NAME), isRuneNull),
}
if len(names) > 0 && !common.StringsHas(names, d.Name) {
continue
}
ret[d.Name] = d
}
return ret, nil
}
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