forked from pingcap/br
-
Notifications
You must be signed in to change notification settings - Fork 0
/
sigusr1_unix.go
38 lines (32 loc) · 1007 Bytes
/
sigusr1_unix.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
// Copyright 2020 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
package lightning
import (
"os"
"os/signal"
"syscall"
"go.uber.org/zap"
"github.com/pingcap/br/pkg/lightning/log"
)
// handleSigUsr1 listens for the SIGUSR1 signal and executes `handler()` every time it is received.
func handleSigUsr1(handler func()) {
ch := make(chan os.Signal, 1)
signal.Notify(ch, syscall.SIGUSR1)
go func() {
for sig := range ch {
log.L().Debug("received signal", zap.Stringer("signal", sig))
handler()
}
}()
}