forked from dragonflyoss/Dragonfly2
/
signal.go
53 lines (46 loc) · 1.2 KB
/
signal.go
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/*
* Copyright 2022 The Dragonfly 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 logger
import (
"fmt"
"os"
"os/signal"
"syscall"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
var (
levels []zap.AtomicLevel
level = zapcore.InfoLevel
)
func startLoggerSignalHandler() {
signals := make(chan os.Signal, 1)
signal.Notify(signals, syscall.SIGUSR1)
go func() {
for {
select {
case <-signals:
level--
if level < zapcore.DebugLevel {
level = zapcore.FatalLevel
}
// use fmt.Printf print change log level event when log level is greater than info level
fmt.Printf("change log level to %s\n", level.String())
SetLevel(level)
}
}
}()
}