54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
/*
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* Copyright 2022 The Dragonfly Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package logger
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import (
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"fmt"
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"os"
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"os/signal"
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"syscall"
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"go.uber.org/zap"
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"go.uber.org/zap/zapcore"
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)
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var (
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levels []zap.AtomicLevel
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level = zapcore.InfoLevel
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)
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func startLoggerSignalHandler() {
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signals := make(chan os.Signal, 1)
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signal.Notify(signals, syscall.SIGUSR1)
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go func() {
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for {
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select {
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case <-signals:
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level--
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if level < zapcore.DebugLevel {
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level = zapcore.FatalLevel
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}
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// use fmt.Printf print change log level event when log level is greater than info level
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fmt.Printf("change log level to %s\n", level.String())
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SetLevel(level)
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}
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}
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}()
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}
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