1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
package battery
import (
"io/ioutil"
"path/filepath"
"strconv"
"strings"
"github.com/jouyouyun/hardware/utils"
)
const (
batterySysfsDir = "/sys/class/power_supply"
)
// Battery store battery info
type Battery struct {
Name string
Model string
Manufacturer string
Serial string
Technology string
CapacityDesign int64
CapacityNow int64
}
// BatteryList store battery list
type BatteryList []*Battery
// GetBatteryList return battery list
func GetBatteryList() (BatteryList, error) {
list, err := utils.ScanDir(batterySysfsDir, func(string) bool {
return false
})
if err != nil {
return nil, err
}
var batList BatteryList
for _, name := range list {
if !isBattery(batterySysfsDir, name) {
continue
}
bat, err := newBattery(batterySysfsDir, name)
if err != nil {
return nil, err
}
batList = append(batList, bat)
}
return batList, nil
}
func newBattery(dir, name string) (*Battery, error) {
uevent := filepath.Join(dir, name, "uevent")
set, err := parseFile(uevent)
if err != nil {
return nil, err
}
var bat = Battery{
Name: set["POWER_SUPPLY_NAME"],
Model: set["POWER_SUPPLY_MODEL_NAME"],
Manufacturer: set["POWER_SUPPLY_MANUFACTURER"],
Serial: set["POWER_SUPPLY_SERIAL_NUMBER"],
Technology: set["POWER_SUPPLY_TECHNOLOGY"],
}
bat.CapacityDesign, _ = strconv.ParseInt(set["POWER_SUPPLY_CHARGE_FULL_DESIGN"],
10, 64)
bat.CapacityNow, _ = strconv.ParseInt(set["POWER_SUPPLY_CHARGE_NOW"],
10, 64)
return &bat, nil
}
func isBattery(dir, name string) bool {
filename := filepath.Join(dir, name, "type")
ty, err := utils.ReadFileContent(filename)
if err != nil {
return false
}
return ty == "Battery"
}
func parseFile(filename string) (map[string]string, error) {
content, err := ioutil.ReadFile(filename)
if err != nil {
return nil, err
}
var set = make(map[string]string)
lines := strings.Split(string(content), "\n")
for _, line := range lines {
if len(line) == 0 {
continue
}
items := strings.Split(line, "=")
if len(items) != 2 {
continue
}
set[items[0]] = items[1]
}
return set, nil
}
|
