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kube-arangodb/pkg/util/signal.go
2022-11-28 15:47:38 +01:00

45 lines
1.2 KiB
Go

//
// DISCLAIMER
//
// Copyright 2016-2022 ArangoDB GmbH, Cologne, Germany
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Copyright holder is ArangoDB GmbH, Cologne, Germany
//
package util
import (
"context"
"github.com/arangodb/kube-arangodb/pkg/util/shutdown"
)
// CreateSignalContext creates and returns the context which is closed when one of the provided signal occurs.
// SIGINT and SIGTERM is used by default.
func CreateSignalContext(ctx context.Context) context.Context {
if ctx == nil {
ctx = context.Background()
}
ctxSignal, cancelSignal := context.WithCancel(ctx)
go func() {
// Wait until shutdown starts
<-shutdown.Channel()
// Close the context which is used by the caller.
cancelSignal()
}()
return ctxSignal
}