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time.go
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time.go
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// Copyright 2018 The Chubao 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 metanode
import (
"sync"
"time"
)
// Now
var Now = NewNowTime()
// NowTime defines the current time.
type NowTime struct {
sync.RWMutex
now time.Time
}
// GetCurrentTime returns the current time.
func (t *NowTime) GetCurrentTime() (now time.Time) {
t.RLock()
now = t.now
t.RUnlock()
return
}
// UpdateTime updates the stored time.
func (t *NowTime) UpdateTime(now time.Time) {
t.Lock()
t.now = now
t.Unlock()
}
// NewNowTime returns a new NowTime.
func NewNowTime() *NowTime {
return &NowTime{
now: time.Now(),
}
}
func init() {
go func() {
for {
time.Sleep(time.Second)
now := time.Now()
Now.UpdateTime(now)
}
}()
}