honk/sensors.go

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2019-11-09 01:11:37 +01:00
//
// Copyright (c) 2019 Ted Unangst <tedu@tedunangst.com>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
package main
import (
"syscall"
"time"
)
type Sensors struct {
Memory float64
Uptime float64
CPU float64
}
var boottime = time.Now()
func getSensors() Sensors {
var usage syscall.Rusage
syscall.Getrusage(syscall.RUSAGE_SELF, &usage)
now := time.Now()
var sensors Sensors
sensors.Memory = float64(usage.Maxrss) / 1024.0
sensors.Uptime = now.Sub(boottime).Seconds()
sensors.CPU = time.Duration(usage.Utime.Nano()).Seconds()
return sensors
}