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59 lines
1.1 KiB
Go
59 lines
1.1 KiB
Go
/*
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Copyright NetFoundry Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package mesh
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import (
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"sync"
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"time"
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)
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func newDeadline() *deadline {
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return &deadline{
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C: make(chan struct{}, 1),
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}
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}
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type deadline struct {
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C chan struct{}
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timer *time.Timer
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lock sync.Mutex
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}
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func (self *deadline) Trigger() {
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select {
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case self.C <- struct{}{}:
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default:
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}
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}
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func (self *deadline) SetTimeout(t time.Duration) {
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self.lock.Lock()
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defer self.lock.Unlock()
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if self.timer != nil {
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self.timer.Stop()
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self.timer = nil
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}
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select {
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case <-self.C:
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default:
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}
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self.timer = time.AfterFunc(t, self.Trigger)
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}
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