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// Copyright 2025 The etcd Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package cache
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import "time"
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// Clock allows for injecting fake or real clocks into code
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// that needs to do arbitrary things based on time.
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type Clock interface {
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NewTimer(d time.Duration) Timer
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}
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// Timer allows for injecting fake or real timers into code
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// that needs to do arbitrary things based on time.
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type Timer interface {
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Chan() <-chan time.Time
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Stop() bool
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Reset(d time.Duration) bool
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}
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// realClock implements Clock using the standard time package.
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type realClock struct{}
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func (realClock) NewTimer(d time.Duration) Timer {
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return &realTimer{timer: time.NewTimer(d)}
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}
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type realTimer struct {
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timer *time.Timer
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}
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func (r *realTimer) Chan() <-chan time.Time {
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return r.timer.C
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}
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func (r *realTimer) Stop() bool {
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return r.timer.Stop()
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}
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func (r *realTimer) Reset(d time.Duration) bool {
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return r.timer.Reset(d)
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}
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