https://github.com/etcd-io/etcd
Tip revision: a4a52cb15dc9ff4eb2f38c7de2d3626aab4e6df6 authored by Gyu-Ho Lee on 01 July 2016, 20:58:37 UTC
version: bump to v3.0.1
version: bump to v3.0.1
Tip revision: a4a52cb
wait_time.go
// Copyright 2015 The etcd Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package wait
import (
"sync"
"time"
)
type WaitTime interface {
// Wait returns a chan that waits on the given deadline.
// The chan will be triggered when Trigger is called with a
// deadline that is later than the one it is waiting for.
// The given deadline MUST be unique. The deadline should be
// retrieved by calling time.Now() in most cases.
Wait(deadline time.Time) <-chan struct{}
// Trigger triggers all the waiting chans with an earlier deadline.
Trigger(deadline time.Time)
}
type timeList struct {
l sync.Mutex
m map[int64]chan struct{}
}
func NewTimeList() *timeList {
return &timeList{m: make(map[int64]chan struct{})}
}
func (tl *timeList) Wait(deadline time.Time) <-chan struct{} {
tl.l.Lock()
defer tl.l.Unlock()
ch := make(chan struct{}, 1)
// The given deadline SHOULD be unique.
tl.m[deadline.UnixNano()] = ch
return ch
}
func (tl *timeList) Trigger(deadline time.Time) {
tl.l.Lock()
defer tl.l.Unlock()
for t, ch := range tl.m {
if t < deadline.UnixNano() {
delete(tl.m, t)
close(ch)
}
}
}