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package widgets
import (
"fmt"
"time"
"github.com/VictoriaMetrics/metrics"
"github.com/xxxserxxx/gotop/v4/devices"
ui "github.com/xxxserxxx/gotop/v4/termui"
"github.com/xxxserxxx/gotop/v4/utils"
)
type MemWidget struct {
*ui.LineGraph
updateInterval time.Duration
}
func NewMemWidget(updateInterval time.Duration, horizontalScale int) *MemWidget {
widg := &MemWidget{
LineGraph: ui.NewLineGraph(),
updateInterval: updateInterval,
}
widg.Title = " Memory Usage "
widg.HorizontalScale = horizontalScale
mems := make(map[string]devices.MemoryInfo)
devices.UpdateMem(mems)
for name, mem := range mems {
if mem.Total > 0 {
widg.Data[name] = []float64{0}
widg.renderMemInfo(name, mem)
}
}
go func() {
for range time.NewTicker(widg.updateInterval).C {
widg.Lock()
devices.UpdateMem(mems)
for label, mi := range mems {
if mi.Total > 0 {
widg.renderMemInfo(label, mi)
}
}
widg.Unlock()
}
}()
return widg
}
func (mem *MemWidget) EnableMetric() {
mems := make(map[string]devices.MemoryInfo)
devices.UpdateMem(mems)
for l := range mems {
lc := l
metrics.NewGauge(makeName("memory", l), func() float64 {
if ds, ok := mem.Data[lc]; ok {
return ds[len(ds)-1]
}
return 0.0
})
}
}
func (mem *MemWidget) Scale(i int) {
mem.LineGraph.HorizontalScale = i
}
func (mem *MemWidget) renderMemInfo(line string, memoryInfo devices.MemoryInfo) {
mem.Data[line] = append(mem.Data[line], memoryInfo.UsedPercent)
memoryTotalBytes, memoryTotalMagnitude := utils.ConvertBytes(memoryInfo.Total)
memoryUsedBytes, memoryUsedMagnitude := utils.ConvertBytes(memoryInfo.Used)
mem.Labels[line] = fmt.Sprintf("%3.0f%% %5.1f%s/%.0f%s",
memoryInfo.UsedPercent,
memoryUsedBytes,
memoryUsedMagnitude,
memoryTotalBytes,
memoryTotalMagnitude,
)
}
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