mirror of
https://github.com/arangodb/kube-arangodb.git
synced 2024-12-14 11:57:37 +00:00
54 lines
1.5 KiB
Go
54 lines
1.5 KiB
Go
//
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// DISCLAIMER
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//
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// Copyright 2016-2022 ArangoDB GmbH, Cologne, Germany
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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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//
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// Copyright holder is ArangoDB GmbH, Cologne, Germany
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//
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package util
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import (
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"context"
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"os"
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"os/signal"
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"syscall"
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)
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// CreateSignalContext creates and returns the context which is closed when one of the provided signal occurs.
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// If the provided list of signals is empty, then SIGINT and SIGTERM is used by default.
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func CreateSignalContext(ctx context.Context, signals ...os.Signal) context.Context {
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if ctx == nil {
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ctx = context.Background()
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}
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ctxSignal, cancelSignal := context.WithCancel(ctx)
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sigChannel := make(chan os.Signal, 2)
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if len(signals) > 0 {
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signal.Notify(sigChannel, signals...)
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} else {
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signal.Notify(sigChannel, os.Interrupt, syscall.SIGTERM)
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}
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go func() {
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// Wait until signal occurs.
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<-sigChannel
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close(sigChannel)
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// Close the context which is used by the caller.
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cancelSignal()
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}()
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return ctxSignal
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}
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