// +build linux package gopsutil import ( "strconv" "strings" ) const ( SectorSize = 512 ) // Get disk partitions. // should use setmntent(3) but this implement use /etc/mtab file func DiskPartitions(all bool) ([]DiskPartitionStat, error) { filename := "/etc/mtab" lines, err := readLines(filename) if err != nil { return nil, err } ret := make([]DiskPartitionStat, 0, len(lines)) for _, line := range lines { fields := strings.Fields(line) d := DiskPartitionStat{ Device: fields[0], Mountpoint: fields[1], Fstype: fields[2], Opts: fields[3], } ret = append(ret, d) } return ret, nil } func DiskIOCounters() (map[string]DiskIOCountersStat, error) { filename := "/proc/diskstats" lines, err := readLines(filename) if err != nil { return nil, err } ret := make(map[string]DiskIOCountersStat, 0) empty := DiskIOCountersStat{} for _, line := range lines { fields := strings.Fields(line) name := fields[2] reads, err := strconv.ParseUint((fields[3]), 10, 64) if err != nil { return ret, err } rbytes, err := strconv.ParseUint((fields[5]), 10, 64) if err != nil { return ret, err } rtime, err := strconv.ParseUint((fields[6]), 10, 64) if err != nil { return ret, err } writes, err := strconv.ParseUint((fields[7]), 10, 64) if err != nil { return ret, err } wbytes, err := strconv.ParseUint((fields[9]), 10, 64) if err != nil { return ret, err } wtime, err := strconv.ParseUint((fields[10]), 10, 64) if err != nil { return ret, err } iotime, err := strconv.ParseUint((fields[12]), 10, 64) if err != nil { return ret, err } d := DiskIOCountersStat{ ReadBytes: uint64(rbytes) * SectorSize, WriteBytes: uint64(wbytes) * SectorSize, ReadCount: uint64(reads), WriteCount: uint64(writes), ReadTime: uint64(rtime), WriteTime: uint64(wtime), IoTime: uint64(iotime), } if d == empty { continue } d.Name = name ret[name] = d } return ret, nil }