disk_darwin_cgo.go

Documentation: github.com/shirou/gopsutil/disk

     1  // +build darwin
     2  // +build cgo
     3  
     4  package disk
     5  
     6  /*
     7  #cgo LDFLAGS: -framework CoreFoundation -framework IOKit
     8  #include <stdint.h>
     9  #include <CoreFoundation/CoreFoundation.h>
    10  #include "iostat_darwin.h"
    11  */
    12  import "C"
    13  
    14  import (
    15  	"context"
    16  
    17  	"github.com/shirou/gopsutil/internal/common"
    18  )
    19  
    20  func IOCountersWithContext(ctx context.Context, names ...string) (map[string]IOCountersStat, error) {
    21  	var buf [C.NDRIVE]C.DriveStats
    22  	n, err := C.readdrivestat(&buf[0], C.int(len(buf)))
    23  	if err != nil {
    24  		return nil, err
    25  	}
    26  	ret := make(map[string]IOCountersStat, 0)
    27  	for i := 0; i < int(n); i++ {
    28  		d := IOCountersStat{
    29  			ReadBytes:  uint64(buf[i].read),
    30  			WriteBytes: uint64(buf[i].written),
    31  			ReadCount:  uint64(buf[i].nread),
    32  			WriteCount: uint64(buf[i].nwrite),
    33  			ReadTime:   uint64(buf[i].readtime / 1000 / 1000), // note: read/write time are in ns, but we want ms.
    34  			WriteTime:  uint64(buf[i].writetime / 1000 / 1000),
    35  			IoTime:     uint64((buf[i].readtime + buf[i].writetime) / 1000 / 1000),
    36  			Name:       C.GoString(&buf[i].name[0]),
    37  		}
    38  		if len(names) > 0 && !common.StringsHas(names, d.Name) {
    39  			continue
    40  		}
    41  
    42  		ret[d.Name] = d
    43  	}
    44  	return ret, nil
    45  }
    46
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