mirror of
https://github.com/v2fly/v2ray-core.git
synced 2024-12-22 18:17:52 -05:00
67 lines
1.0 KiB
Go
67 lines
1.0 KiB
Go
package signal
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import (
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"context"
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"time"
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)
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type ActivityUpdater interface {
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Update()
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}
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type ActivityTimer struct {
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updated chan bool
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timeout chan time.Duration
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ctx context.Context
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cancel context.CancelFunc
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}
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func (t *ActivityTimer) Update() {
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select {
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case t.updated <- true:
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default:
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}
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}
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func (t *ActivityTimer) SetTimeout(timeout time.Duration) {
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t.timeout <- timeout
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}
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func (t *ActivityTimer) run() {
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ticker := time.NewTicker(<-t.timeout)
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defer func() {
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ticker.Stop()
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}()
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for {
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select {
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case <-ticker.C:
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case <-t.ctx.Done():
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return
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case timeout := <-t.timeout:
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ticker.Stop()
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ticker = time.NewTicker(timeout)
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}
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select {
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case <-t.updated:
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// Updated keep waiting.
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default:
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t.cancel()
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return
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}
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}
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}
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func CancelAfterInactivity(ctx context.Context, cancel context.CancelFunc, timeout time.Duration) *ActivityTimer {
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timer := &ActivityTimer{
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ctx: ctx,
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cancel: cancel,
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timeout: make(chan time.Duration, 1),
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updated: make(chan bool, 1),
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}
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timer.timeout <- timeout
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go timer.run()
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return timer
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}
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