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ad0f7a5305
Upgrade to Go 1.20.5, Hydra v2 SDK, rules-go v0.44.2 (with proper resolves), protobuf v25.3 and mass upgrade of Go dependencies.
61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
/*
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Copyright 2020 The Kubernetes Authors.
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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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http://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 internal
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import (
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"sync"
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"time"
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)
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// AtMostEvery will never run the method more than once every specified
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// duration.
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type AtMostEvery struct {
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delay time.Duration
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lastCall time.Time
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mutex sync.Mutex
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}
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// NewAtMostEvery creates a new AtMostEvery, that will run the method at
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// most every given duration.
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func NewAtMostEvery(delay time.Duration) *AtMostEvery {
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return &AtMostEvery{
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delay: delay,
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}
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}
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// updateLastCall returns true if the lastCall time has been updated,
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// false if it was too early.
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func (s *AtMostEvery) updateLastCall() bool {
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s.mutex.Lock()
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defer s.mutex.Unlock()
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if time.Since(s.lastCall) < s.delay {
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return false
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}
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s.lastCall = time.Now()
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return true
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}
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// Do will run the method if enough time has passed, and return true.
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// Otherwise, it does nothing and returns false.
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func (s *AtMostEvery) Do(fn func()) bool {
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if !s.updateLastCall() {
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return false
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}
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fn()
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return true
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}
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