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agent: small refactoring and tests for battery package (#1872)

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henrygd
2026-04-02 20:56:30 -04:00
committed by hank
parent d656036d3b
commit 6b5e6ffa9a
5 changed files with 250 additions and 38 deletions
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11
agent/battery/battery_windows.go
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@@ -1,5 +1,8 @@
//go:build windows
// Most of the Windows battery code is based on
// distatus/battery by Karol 'Kenji Takahashi' Woźniak
package battery
import (
@@ -76,6 +79,10 @@ var (
setupDiDestroyDeviceInfoList = setupapi.NewProc("SetupDiDestroyDeviceInfoList")
)
// winBatteryGet reads one battery by index. Returns (fullCapacity, currentCapacity, state, error).
// Returns error == errNotFound when there are no more batteries.
var errNotFound = errors.New("no more batteries")
func setupDiSetup(proc *windows.LazyProc, nargs, a1, a2, a3, a4, a5, a6 uintptr) (uintptr, error) {
_ = nargs
r1, _, errno := syscall.SyscallN(proc.Addr(), a1, a2, a3, a4, a5, a6)
@@ -115,10 +122,6 @@ func readWinBatteryState(powerState uint32) uint8 {
}
}
// winBatteryGet reads one battery by index. Returns (fullCapacity, currentCapacity, state, error).
// Returns error == errNotFound when there are no more batteries.
var errNotFound = errors.New("no more batteries")
func winBatteryGet(idx int) (full, current uint32, state uint8, err error) {
hdev, err := setupDiSetup(
setupDiGetClassDevsW,