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// Copyright 2018 PingCAP, Inc. | ||
// | ||
// 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, | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
// +build linux darwin freebsd unix | ||
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package signal | ||
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import ( | ||
"os" | ||
"os/signal" | ||
"runtime" | ||
"syscall" | ||
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log "github.com/sirupsen/logrus" | ||
) | ||
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// SetupSignalHandler setup signal handler for TiDB Server | ||
func SetupSignalHandler(shudownFunc func(bool)) { | ||
usrDefSignalChan := make(chan os.Signal, 1) | ||
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signal.Notify(usrDefSignalChan, syscall.SIGUSR1) | ||
go func() { | ||
buf := make([]byte, 1<<16) | ||
for { | ||
sig := <-usrDefSignalChan | ||
if sig == syscall.SIGUSR1 { | ||
stackLen := runtime.Stack(buf, true) | ||
log.Printf("\n=== Got signal [%s] to dump goroutine stack. ===\n%s\n=== Finished dumping goroutine stack. ===\n", sig, buf[:stackLen]) | ||
} | ||
} | ||
}() | ||
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closeSignalChan := make(chan os.Signal, 1) | ||
signal.Notify(closeSignalChan, | ||
syscall.SIGHUP, | ||
syscall.SIGINT, | ||
syscall.SIGTERM, | ||
syscall.SIGQUIT) | ||
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go func() { | ||
sig := <-closeSignalChan | ||
log.Infof("Got signal [%s] to exit.", sig) | ||
shudownFunc(sig == syscall.SIGQUIT) | ||
}() | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,40 @@ | ||
// Copyright 2018 PingCAP, Inc. | ||
// | ||
// 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, | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
// +build windows | ||
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package signal | ||
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import ( | ||
"os" | ||
"os/signal" | ||
"syscall" | ||
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log "github.com/sirupsen/logrus" | ||
) | ||
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// SetupSignalHandler setup signal handler for TiDB Server | ||
func SetupSignalHandler(shudownFunc func(bool)) { | ||
//todo deal with dump goroutine stack on windows | ||
closeSignalChan := make(chan os.Signal, 1) | ||
signal.Notify(closeSignalChan, | ||
syscall.SIGHUP, | ||
syscall.SIGINT, | ||
syscall.SIGTERM, | ||
syscall.SIGQUIT) | ||
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go func() { | ||
sig := <-closeSignalChan | ||
log.Infof("Got signal [%s] to exit.", sig) | ||
shudownFunc(sig == syscall.SIGQUIT) | ||
}() | ||
} |