forgejo-federation/modules/util/timer.go
wxiaoguang 50a72e7a83
Use a general approach to access custom/static/builtin assets (#24022)
The idea is to use a Layered Asset File-system (modules/assetfs/layered.go)

For example: when there are 2 layers: "custom", "builtin", when access
to asset "my/page.tmpl", the Layered Asset File-system will first try to
use "custom" assets, if not found, then use "builtin" assets.

This approach will hugely simplify a lot of code, make them testable.

Other changes:

* Simplify the AssetsHandlerFunc code
* Simplify the `gitea embedded` sub-command code

---------

Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
2023-04-12 18:16:45 +08:00

48 lines
769 B
Go

// Copyright 2020 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package util
import (
"sync"
"time"
)
// StopTimer is a utility function to safely stop a time.Timer and clean its channel
func StopTimer(t *time.Timer) bool {
stopped := t.Stop()
if !stopped {
select {
case <-t.C:
default:
}
}
return stopped
}
func Debounce(d time.Duration) func(f func()) {
type debouncer struct {
mu sync.Mutex
t *time.Timer
}
db := &debouncer{}
return func(f func()) {
db.mu.Lock()
defer db.mu.Unlock()
if db.t != nil {
db.t.Stop()
}
var trigger *time.Timer
trigger = time.AfterFunc(d, func() {
db.mu.Lock()
defer db.mu.Unlock()
if trigger == db.t {
f()
db.t = nil
}
})
db.t = trigger
}
}