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signals.go
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signals.go
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// Copyright (c) 2023 The Go-Enjin 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 service
import (
"os"
"os/signal"
"syscall"
)
func (s *Service) HandleSIGINT() {
s.Lock()
s.SigINT = make(chan os.Signal, 1)
s.Unlock()
signal.Notify(s.SigINT, syscall.SIGINT, syscall.SIGTERM)
s.LogInfoF("listening for INT/TERM signals\n")
switch <-s.SigINT {
case syscall.SIGINT, syscall.SIGTERM:
s.LogInfoF("signal received: INT/TERM (shutdown)")
if err := s.StopFn(); err != nil {
s.LogErrorF("error stopping during SIGINT/SIGTERM: %v\n", err)
}
if err := s.Cleanup(); err != nil {
s.LogErrorF("error cleaning during SIGINT/SIGTERM: %v\n", err)
}
}
}
func (s *Service) HandleSIGHUP() {
s.Lock()
s.SigHUP = make(chan os.Signal, 1)
s.Unlock()
signal.Notify(s.SigHUP, syscall.SIGHUP)
s.LogInfoF("listening for HUP signals\n")
for {
switch <-s.SigHUP {
case syscall.SIGHUP:
s.LogInfoF("signal received: HUP (reload)")
if err := s.ReloadFn(); err != nil {
s.LogErrorF("error during SIGHUP: %v\n", err)
}
}
}
}