52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
// Copyright 2021 Google LLC
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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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// https://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 main
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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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"sync"
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"github.com/google/alertmanager-irc-relay/logging"
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)
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func WithSignal(ctx context.Context, s ...os.Signal) (context.Context, context.CancelFunc) {
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sigCtx, cancel := context.WithCancel(ctx)
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c := make(chan os.Signal, 1)
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signal.Notify(c, s...)
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go func() {
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select {
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case <-c:
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logging.Info("Received %s, exiting", s)
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cancel()
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case <-ctx.Done():
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cancel()
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}
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signal.Stop(c)
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}()
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return sigCtx, cancel
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}
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func WithWaitGroup(ctx context.Context, wg *sync.WaitGroup) context.Context {
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wgCtx, cancel := context.WithCancel(context.Background())
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go func() {
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<-ctx.Done()
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wg.Wait()
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cancel()
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}()
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return wgCtx
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}
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