Add ttop example
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gizak
parent
9ec1539ccc
commit
e62b592964
@ -3,33 +3,35 @@
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package main
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import (
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"fmt"
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"bufio"
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"os"
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"errors"
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"fmt"
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"io"
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"os"
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"regexp"
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"strings"
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"runtime"
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"sort"
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"strconv"
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"strings"
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"time"
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"errors"
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"runtime"
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"github.com/marigs/termui"
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"github.com/gizak/termui"
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"github.com/gizak/termui/extra"
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)
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const statFilePath = "/proc/stat"
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const meminfoFilePath = "/proc/meminfo"
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type CpuStat struct {
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user float32
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nice float32
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system float32
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idle float32
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user float32
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nice float32
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system float32
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idle float32
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}
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type CpusStats struct {
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stat map[string]CpuStat
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proc map[string]CpuStat
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stat map[string]CpuStat
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proc map[string]CpuStat
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}
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func NewCpusStats(s map[string]CpuStat) *CpusStats {
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@ -45,17 +47,17 @@ func (cs *CpusStats) String() (ret string) {
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func subCpuStat(m CpuStat, s CpuStat) CpuStat {
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return CpuStat{user: m.user - s.user,
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nice: m.nice - s.nice,
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system: m.system - s.system,
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idle: m.idle - s.idle}
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nice: m.nice - s.nice,
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system: m.system - s.system,
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idle: m.idle - s.idle}
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}
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func procCpuStat(c CpuStat) CpuStat {
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sum := c.user + c.nice + c.system + c.idle
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return CpuStat{user: c.user/sum*100,
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nice: c.nice/sum*100,
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system: c.system/sum*100,
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idle: c.idle/sum*100}
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return CpuStat{user: c.user / sum * 100,
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nice: c.nice / sum * 100,
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system: c.system / sum * 100,
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idle: c.idle / sum * 100}
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}
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func (cs *CpusStats) tick(ns map[string]CpuStat) {
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@ -80,7 +82,7 @@ func (eip *errIntParser) parse(s string) (ret int64) {
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type LineProcessor interface {
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process(string) error
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finalize() interface {}
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finalize() interface{}
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}
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type CpuLineProcessor struct {
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@ -98,9 +100,9 @@ func (clp *CpuLineProcessor) process(line string) (err error) {
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}
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parser := errIntParser{}
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cs := CpuStat{user: float32(parser.parse(tab[1])),
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nice: float32(parser.parse(tab[2])),
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system: float32(parser.parse(tab[3])),
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idle: float32(parser.parse(tab[4]))}
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nice: float32(parser.parse(tab[2])),
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system: float32(parser.parse(tab[3])),
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idle: float32(parser.parse(tab[4]))}
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clp.m[tab[0]] = cs
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err = parser.err
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if err != nil {
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@ -110,13 +112,13 @@ func (clp *CpuLineProcessor) process(line string) (err error) {
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return
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}
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func (clp *CpuLineProcessor) finalize() interface {} {
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func (clp *CpuLineProcessor) finalize() interface{} {
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return clp.m
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}
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type MemStat struct {
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total int64
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free int64
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total int64
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free int64
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}
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func (ms MemStat) String() (ret string) {
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@ -149,11 +151,11 @@ func (ms *MemStat) process(line string) (err error) {
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return
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}
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func (ms *MemStat) finalize() interface {} {
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func (ms *MemStat) finalize() interface{} {
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return *ms
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}
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func processFileLines(filePath string, lp LineProcessor) (ret interface {}, err error) {
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func processFileLines(filePath string, lp LineProcessor) (ret interface{}, err error) {
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var statFile *os.File
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statFile, err = os.Open(filePath)
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if err != nil {
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@ -184,19 +186,19 @@ func processFileLines(filePath string, lp LineProcessor) (ret interface {}, err
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}
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func getCpusStatsMap() (m map[string]CpuStat, err error) {
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var aux interface {}
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var aux interface{}
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aux, err = processFileLines(statFilePath, &CpuLineProcessor{m: make(map[string]CpuStat)})
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return aux.(map[string]CpuStat), err
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}
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func getMemStats() (ms MemStat, err error) {
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var aux interface {}
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var aux interface{}
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aux, err = processFileLines(meminfoFilePath, &MemStat{})
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return aux.(MemStat), err
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}
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type CpuTabElems struct {
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GMap map[string]*termui.Gauge
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GMap map[string]*termui.Gauge
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LChart *termui.LineChart
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}
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@ -208,17 +210,16 @@ func NewCpuTabElems(width int) *CpuTabElems {
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lc.Mode = "dot"
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lc.Border.Label = "CPU"
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return &CpuTabElems{GMap: make(map[string]*termui.Gauge),
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LChart: lc}
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LChart: lc}
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}
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func (cte *CpuTabElems) AddGauge(key string, Y int, width int) *termui.Gauge {
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cte.GMap[key] = termui.NewGauge()
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cte.GMap[key].Width = width
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cte.GMap[key].Height = 3
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cte.GMap[key].Y = Y
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cte.GMap[key].Border.Label = key
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cte.GMap[key].Percent = 0//int(val.user + val.nice + val.system)
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cte.GMap[key].Percent = 0 //int(val.user + val.nice + val.system)
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return cte.GMap[key]
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}
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@ -235,7 +236,7 @@ func (cte *CpuTabElems) Update(cs CpusStats) {
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}
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type MemTabElems struct {
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Gauge *termui.Gauge
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Gauge *termui.Gauge
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SLines *termui.Sparklines
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}
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@ -263,7 +264,7 @@ func (mte *MemTabElems) Update(ms MemStat) {
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copy(mte.SLines.Lines[0].Data[1:], mte.SLines.Lines[0].Data[0:])
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mte.SLines.Lines[0].Data[0] = used
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if len(mte.SLines.Lines[0].Data) > mte.SLines.Width-2 {
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mte.SLines.Lines[0].Data = mte.SLines.Lines[0].Data[0:mte.SLines.Width-2]
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mte.SLines.Lines[0].Data = mte.SLines.Lines[0].Data[0 : mte.SLines.Width-2]
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}
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}
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@ -271,11 +272,11 @@ func main() {
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if runtime.GOOS != "linux" {
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panic("Currently works only on Linux")
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}
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err := termui.Init()
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if err != nil {
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err := termui.Init()
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if err != nil {
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panic(err)
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}
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defer termui.Close()
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defer termui.Close()
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termWidth := 70
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@ -287,13 +288,13 @@ func main() {
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header.HasBorder = false
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header.TextBgColor = termui.ColorBlue
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tabCpu := termui.NewTab("CPU")
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tabMem := termui.NewTab("MEM")
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tabCpu := extra.NewTab("CPU")
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tabMem := extra.NewTab("MEM")
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tabpane := termui.NewTabpane()
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tabpane := extra.NewTabpane()
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tabpane.Y = 1
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tabpane.Width = 30
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tabpane.HasBorder = false
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tabpane.Width = 30
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tabpane.HasBorder = false
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cs, errcs := getCpusStatsMap()
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cpusStats := NewCpusStats(cs)
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@ -327,9 +328,9 @@ func main() {
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tabMem.AddBlocks(memTabElems.Gauge)
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tabMem.AddBlocks(memTabElems.SLines)
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tabpane.SetTabs(*tabCpu, *tabMem)
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tabpane.SetTabs(*tabCpu, *tabMem)
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termui.Render(header, tabpane)
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termui.Render(header, tabpane)
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evt := termui.EventCh()
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for {
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@ -365,4 +366,3 @@ func main() {
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}
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}
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}
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