f606c4eba7
Provides a couple helper functions that provide a background context for running cleanup jobs while preserving the original context values. The new contexts will not inherit the errors or cancellations. Signed-off-by: Derek McGowan <derek@mcg.dev>
53 lines
1.3 KiB
Go
53 lines
1.3 KiB
Go
/*
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Copyright The containerd 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 providing utilies to help cleanup
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package cleanup
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import (
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"context"
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"time"
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)
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type clearCancel struct {
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context.Context
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}
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func (cc clearCancel) Deadline() (deadline time.Time, ok bool) {
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return
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}
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func (cc clearCancel) Done() <-chan struct{} {
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return nil
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}
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func (cc clearCancel) Err() error {
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return nil
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}
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// Background creates a new context which clears out the parent errors
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func Background(ctx context.Context) context.Context {
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return clearCancel{ctx}
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}
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// Do runs the provided function with a context in which the
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// errors are cleared out and will timeout after 10 seconds.
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func Do(ctx context.Context, do func(context.Context)) {
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ctx, cancel := context.WithTimeout(clearCancel{ctx}, 10*time.Second)
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do(ctx)
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cancel()
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}
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