mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-18 12:20:24 +00:00
07b05616a0
Bumps [k8s.io/kubernetes](https://github.com/kubernetes/kubernetes) from 1.26.2 to 1.27.2. - [Release notes](https://github.com/kubernetes/kubernetes/releases) - [Commits](https://github.com/kubernetes/kubernetes/compare/v1.26.2...v1.27.2) --- updated-dependencies: - dependency-name: k8s.io/kubernetes dependency-type: direct:production update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com>
70 lines
2.0 KiB
Go
70 lines
2.0 KiB
Go
/*
|
|
Copyright 2017 The Kubernetes Authors.
|
|
|
|
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.
|
|
*/
|
|
|
|
package server
|
|
|
|
import (
|
|
"context"
|
|
"os"
|
|
"os/signal"
|
|
)
|
|
|
|
var onlyOneSignalHandler = make(chan struct{})
|
|
var shutdownHandler chan os.Signal
|
|
|
|
// SetupSignalHandler registered for SIGTERM and SIGINT. A stop channel is returned
|
|
// which is closed on one of these signals. If a second signal is caught, the program
|
|
// is terminated with exit code 1.
|
|
// Only one of SetupSignalContext and SetupSignalHandler should be called, and only can
|
|
// be called once.
|
|
func SetupSignalHandler() <-chan struct{} {
|
|
return SetupSignalContext().Done()
|
|
}
|
|
|
|
// SetupSignalContext is same as SetupSignalHandler, but a context.Context is returned.
|
|
// Only one of SetupSignalContext and SetupSignalHandler should be called, and only can
|
|
// be called once.
|
|
func SetupSignalContext() context.Context {
|
|
close(onlyOneSignalHandler) // panics when called twice
|
|
|
|
shutdownHandler = make(chan os.Signal, 2)
|
|
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
signal.Notify(shutdownHandler, shutdownSignals...)
|
|
go func() {
|
|
<-shutdownHandler
|
|
cancel()
|
|
<-shutdownHandler
|
|
os.Exit(1) // second signal. Exit directly.
|
|
}()
|
|
|
|
return ctx
|
|
}
|
|
|
|
// RequestShutdown emulates a received event that is considered as shutdown signal (SIGTERM/SIGINT)
|
|
// This returns whether a handler was notified
|
|
func RequestShutdown() bool {
|
|
if shutdownHandler != nil {
|
|
select {
|
|
case shutdownHandler <- shutdownSignals[0]:
|
|
return true
|
|
default:
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|