65 lines
1.4 KiB
Go
65 lines
1.4 KiB
Go
package widgets
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import (
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"log"
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"strconv"
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"time"
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ui "github.com/cjbassi/termui"
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psCPU "github.com/shirou/gopsutil/cpu"
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)
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type CPU struct {
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*ui.LineGraph
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Count int // number of CPUs
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interval time.Duration
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}
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func NewCPU(interval time.Duration, zoom int) *CPU {
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count, _ := psCPU.Counts(false)
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self := &CPU{
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LineGraph: ui.NewLineGraph(),
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Count: count,
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interval: interval,
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}
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self.Label = "CPU Usage"
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self.Zoom = zoom
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if self.Count <= 8 {
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for i := 0; i < self.Count; i++ {
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key := "CPU" + strconv.Itoa(i)
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self.Data[key] = []float64{0}
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}
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} else {
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self.Data["Average"] = []float64{0}
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}
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go self.update()
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ticker := time.NewTicker(self.interval)
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go func() {
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for range ticker.C {
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self.update()
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}
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}()
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return self
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}
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func (self *CPU) update() {
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// psutil calculates the CPU usage over a 1 second interval, therefore it blocks for 1 second
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if self.Count <= 8 {
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percents, _ := psCPU.Percent(self.interval, true)
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if len(percents) != self.Count {
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count, _ := psCPU.Counts(false)
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log.Fatalf("\nself.Count: %d\ngopsutil.Counts(): %d\nlen(percents): %d\npercents: %v", self.Count, count, len(percents), percents)
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}
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for i := 0; i < self.Count; i++ {
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key := "CPU" + strconv.Itoa(i)
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percent := percents[i]
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self.Data[key] = append(self.Data[key], percent)
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}
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} else {
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percent, _ := psCPU.Percent(self.interval, false)
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self.Data["Average"] = append(self.Data["Average"], percent[0])
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}
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}
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