mirror of https://github.com/cjbassi/gotop.git
109 lines
2.9 KiB
Go
109 lines
2.9 KiB
Go
// battery
|
|
// Copyright (C) 2016-2017 Karol 'Kenji Takahashi' Woźniak
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining
|
|
// a copy of this software and associated documentation files (the "Software"),
|
|
// to deal in the Software without restriction, including without limitation
|
|
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
// and/or sell copies of the Software, and to permit persons to whom the
|
|
// Software is furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included
|
|
// in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
|
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
|
|
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
|
|
// OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
package battery
|
|
|
|
import (
|
|
"math"
|
|
"os/exec"
|
|
|
|
plist "howett.net/plist"
|
|
)
|
|
|
|
type battery struct {
|
|
Voltage int
|
|
CurrentCapacity int
|
|
MaxCapacity int
|
|
DesignCapacity int
|
|
Amperage int64
|
|
FullyCharged bool
|
|
IsCharging bool
|
|
ExternalConnected bool
|
|
}
|
|
|
|
func readBatteries() ([]*battery, error) {
|
|
out, err := exec.Command("ioreg", "-n", "AppleSmartBattery", "-r", "-a").Output()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if len(out) == 0 {
|
|
// No batteries.
|
|
return nil, nil
|
|
}
|
|
|
|
var data []*battery
|
|
if _, err = plist.Unmarshal(out, &data); err != nil {
|
|
return nil, err
|
|
}
|
|
return data, nil
|
|
}
|
|
|
|
func convertBattery(battery *battery) *Battery {
|
|
volts := float64(battery.Voltage) / 1000
|
|
b := &Battery{
|
|
Current: float64(battery.CurrentCapacity) * volts,
|
|
Full: float64(battery.MaxCapacity) * volts,
|
|
Design: float64(battery.DesignCapacity) * volts,
|
|
ChargeRate: math.Abs(float64(battery.Amperage)) * volts,
|
|
Voltage: volts,
|
|
DesignVoltage: volts,
|
|
}
|
|
switch {
|
|
case !battery.ExternalConnected:
|
|
b.State, _ = newState("Discharging")
|
|
case battery.IsCharging:
|
|
b.State, _ = newState("Charging")
|
|
case battery.CurrentCapacity == 0:
|
|
b.State, _ = newState("Empty")
|
|
case battery.FullyCharged:
|
|
b.State, _ = newState("Full")
|
|
default:
|
|
b.State, _ = newState("Unknown")
|
|
}
|
|
return b
|
|
}
|
|
|
|
func systemGet(idx int) (*Battery, error) {
|
|
batteries, err := readBatteries()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if idx >= len(batteries) {
|
|
return nil, ErrNotFound
|
|
}
|
|
return convertBattery(batteries[idx]), nil
|
|
}
|
|
|
|
func systemGetAll() ([]*Battery, error) {
|
|
_batteries, err := readBatteries()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
batteries := make([]*Battery, len(_batteries))
|
|
for i, battery := range _batteries {
|
|
batteries[i] = convertBattery(battery)
|
|
}
|
|
return batteries, nil
|
|
}
|