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// Copyright (c) 2012 VMware, Inc.
package sigar
import (
"bufio"
"bytes"
"fmt"
"strconv"
"time"
)
// Go version of apr_strfsize
func FormatSize(size uint64) string {
ord := []string{"K", "M", "G", "T", "P", "E"}
o := 0
buf := new(bytes.Buffer)
w := bufio.NewWriter(buf)
if size < 973 {
fmt.Fprintf(w, "%3d ", size)
w.Flush()
return buf.String()
}
for {
remain := size & 1023
size >>= 10
if size >= 973 {
o++
continue
}
if size < 9 || (size == 9 && remain < 973) {
remain = ((remain * 5) + 256) / 512
if remain >= 10 {
size++
remain = 0
}
fmt.Fprintf(w, "%d.%d%s", size, remain, ord[o])
break
}
if remain >= 512 {
size++
}
fmt.Fprintf(w, "%3d%s", size, ord[o])
break
}
w.Flush()
return buf.String()
}
func FormatPercent(percent float64) string {
return strconv.FormatFloat(percent, 'f', -1, 64) + "%"
}
func (self *FileSystemUsage) UsePercent() float64 {
b_used := (self.Total - self.Free) / 1024
b_avail := self.Avail / 1024
utotal := b_used + b_avail
used := b_used
if utotal != 0 {
u100 := used * 100
pct := u100 / utotal
if u100%utotal != 0 {
pct += 1
}
return (float64(pct) / float64(100)) * 100.0
}
return 0.0
}
func (self *Uptime) Format() string {
buf := new(bytes.Buffer)
w := bufio.NewWriter(buf)
uptime := uint64(self.Length)
days := uptime / (60 * 60 * 24)
if days != 0 {
s := ""
if days > 1 {
s = "s"
}
fmt.Fprintf(w, "%d day%s, ", days, s)
}
minutes := uptime / 60
hours := minutes / 60
hours %= 24
minutes %= 60
fmt.Fprintf(w, "%2d:%02d", hours, minutes)
w.Flush()
return buf.String()
}
func (self *ProcTime) FormatStartTime() string {
if self.StartTime == 0 {
return "00:00"
}
start := time.Unix(int64(self.StartTime)/1000, 0)
format := "Jan02"
if time.Since(start).Seconds() < (60 * 60 * 24) {
format = "15:04"
}
return start.Format(format)
}
func (self *ProcTime) FormatTotal() string {
t := self.Total / 1000
ss := t % 60
t /= 60
mm := t % 60
t /= 60
hh := t % 24
return fmt.Sprintf("%02d:%02d:%02d", hh, mm, ss)
}