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node_exporter/vendor/github.com/lufia/iostat/iostat_darwin.go

38 lines
1023 B

// +build darwin
package iostat
// #cgo LDFLAGS: -framework CoreFoundation -framework IOKit
// #include <stdint.h>
// #include "iostat_darwin.h"
import "C"
import (
"time"
)
// ReadDriveStats returns statictics of each of the drives.
func ReadDriveStats() ([]*DriveStats, error) {
var buf [C.NDRIVE]C.DriveStats
n, err := C.readdrivestat(&buf[0], C.int(len(buf)))
if err != nil {
return nil, err
}
stats := make([]*DriveStats, n)
for i := 0; i < int(n); i++ {
stats[i] = &DriveStats{
Name: C.GoString(&buf[i].name[0]),
Size: int64(buf[i].size),
BlockSize: int64(buf[i].blocksize),
BytesRead: int64(buf[i].read),
BytesWritten: int64(buf[i].written),
NumRead: int64(buf[i].nread),
NumWrite: int64(buf[i].nwrite),
TotalReadTime: time.Duration(buf[i].readtime),
TotalWriteTime: time.Duration(buf[i].writetime),
ReadLatency: time.Duration(buf[i].readlat),
WriteLatency: time.Duration(buf[i].writelat),
}
}
return stats, nil
}