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package status // import "hhvn.uk/hbspbar/status"
import (
"fmt"
"strings"
"hhvn.uk/hbspbar/common"
)
func checkMemField(m map[string]int, k string) error {
_, ok := m[k]
if !ok {
return fmt.Errorf("missing %s", k)
}
return nil
}
func mem(name string) error {
u := newUpdate(name)
mem := make(map[string]int)
lines, err := common.FileAsLines("/proc/meminfo")
if err != nil { return err }
for _, l := range lines {
name, rest, _ := strings.Cut(l, ":")
val := strings.TrimLeft(strings.TrimSuffix(rest, " kB"), " ")
n, err := common.Intify(val)
if err != nil { return err }
mem[name] = n
}
if err := checkMemField(mem, "MemTotal"); err != nil { return err }
if err := checkMemField(mem, "MemAvailable"); err != nil { return err }
total := mem["MemTotal"]
avail := mem["MemAvailable"]
p := int(float64(avail) / float64(total) * 100.0)
cx := 0
cx += u.drawPercentBar(cx, p)
_, err = u.drawText(cx, blendGYR(p), fmt.Sprintf("%d%%", p))
updates <- u
sleep(1)
return nil
}
func init() {
name := "mem"
register(name)
go func() {
for {
checkError(name, mem(name))
}
}()
}
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