59 lines
2.0 KiB
Go
59 lines
2.0 KiB
Go
// Copyright (c) 2021 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package fxclock
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import (
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"context"
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"time"
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)
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// Clock defines how Fx accesses time.
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// The interface is pretty minimal but it matches github.com/benbjohnson/clock.
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// We intentionally don't use that interface directly;
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// this keeps it a test dependency for us.
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type Clock interface {
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Now() time.Time
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Since(time.Time) time.Duration
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Sleep(time.Duration)
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WithTimeout(context.Context, time.Duration) (context.Context, context.CancelFunc)
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}
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// System is the default implementation of Clock based on real time.
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var System Clock = systemClock{}
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type systemClock struct{}
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func (systemClock) Now() time.Time {
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return time.Now()
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}
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func (systemClock) Since(t time.Time) time.Duration {
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return time.Since(t)
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}
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func (systemClock) Sleep(d time.Duration) {
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time.Sleep(d)
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}
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func (systemClock) WithTimeout(ctx context.Context, d time.Duration) (context.Context, context.CancelFunc) {
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return context.WithTimeout(ctx, d)
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}
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