mirror of https://github.com/jetkvm/kvm.git
121 lines
2.8 KiB
Go
121 lines
2.8 KiB
Go
package kvm
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import (
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"context"
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"fmt"
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"time"
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"github.com/jetkvm/kvm/internal/native"
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)
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var (
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lastVideoState native.VideoState
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videoSleepModeCtx context.Context
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videoSleepModeCancel context.CancelFunc
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)
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const (
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defaultVideoSleepModeDuration = 1 * time.Minute
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)
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func triggerVideoStateUpdate() {
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go func() {
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writeJSONRPCEvent("videoInputState", lastVideoState, currentSession)
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}()
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nativeLogger.Info().Interface("state", lastVideoState).Msg("video state updated")
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}
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func rpcGetVideoState() (native.VideoState, error) {
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return lastVideoState, nil
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}
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type rpcVideoSleepModeResponse struct {
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Supported bool `json:"supported"`
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Enabled bool `json:"enabled"`
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Duration int `json:"duration"`
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}
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func rpcGetVideoSleepMode() rpcVideoSleepModeResponse {
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sleepMode, _ := nativeInstance.VideoGetSleepMode()
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return rpcVideoSleepModeResponse{
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Supported: nativeInstance.VideoSleepModeSupported(),
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Enabled: sleepMode,
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Duration: config.VideoSleepAfterSec,
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}
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}
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func rpcSetVideoSleepMode(duration int) error {
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if duration < 0 {
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duration = -1 // disable
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}
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config.VideoSleepAfterSec = duration
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if err := SaveConfig(); err != nil {
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return fmt.Errorf("failed to save config: %w", err)
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}
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// we won't restart the ticker here,
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// as the session can't be inactive when this function is called
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return nil
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}
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func stopVideoSleepModeTicker() {
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nativeLogger.Trace().Msg("stopping HDMI sleep mode ticker")
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if videoSleepModeCancel != nil {
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nativeLogger.Trace().Msg("canceling HDMI sleep mode ticker context")
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videoSleepModeCancel()
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videoSleepModeCancel = nil
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videoSleepModeCtx = nil
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}
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}
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func startVideoSleepModeTicker() {
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if !nativeInstance.VideoSleepModeSupported() {
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return
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}
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var duration time.Duration
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if config.VideoSleepAfterSec == 0 {
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duration = defaultVideoSleepModeDuration
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} else if config.VideoSleepAfterSec > 0 {
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duration = time.Duration(config.VideoSleepAfterSec) * time.Second
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} else {
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stopVideoSleepModeTicker()
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return
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}
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// Stop any existing timer and goroutine
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stopVideoSleepModeTicker()
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// Create new context for this ticker
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videoSleepModeCtx, videoSleepModeCancel = context.WithCancel(context.Background())
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go doVideoSleepModeTicker(videoSleepModeCtx, duration)
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}
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func doVideoSleepModeTicker(ctx context.Context, duration time.Duration) {
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timer := time.NewTimer(duration)
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defer timer.Stop()
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nativeLogger.Trace().Msg("HDMI sleep mode ticker started")
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for {
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select {
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case <-timer.C:
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if getActiveSessions() > 0 {
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nativeLogger.Warn().Msg("not going to enter HDMI sleep mode because there are active sessions")
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continue
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}
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nativeLogger.Trace().Msg("entering HDMI sleep mode")
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_ = nativeInstance.VideoSetSleepMode(true)
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case <-ctx.Done():
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nativeLogger.Trace().Msg("HDMI sleep mode ticker stopped")
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return
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}
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}
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}
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