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// Copyright (C) 2014 Space Monkey, 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,
// 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 spacelog
import (
"sync"
"sync/atomic"
)
// Logger is the basic type that allows for logging. A logger has an associated
// name, given to it during construction, either through a logger collection,
// GetLogger, GetLoggerNamed, or another Logger's Scope method. A logger also
// has an associated level and handler, typically configured through the logger
// collection to which it belongs.
type Logger struct {
level LogLevel
name string
collection *LoggerCollection
handler_mtx sync.RWMutex
handler Handler
}
// Scope returns a new Logger with the same level and handler, using the
// receiver Logger's name as a prefix.
func (l *Logger) Scope(name string) *Logger {
return l.collection.getLogger(l.name+"."+name, l.getLevel(),
l.getHandler())
}
func (l *Logger) setLevel(level LogLevel) {
atomic.StoreInt32((*int32)(&l.level), int32(level))
}
func (l *Logger) getLevel() LogLevel {
return LogLevel(atomic.LoadInt32((*int32)(&l.level)))
}
func (l *Logger) setHandler(handler Handler) {
l.handler_mtx.Lock()
defer l.handler_mtx.Unlock()
l.handler = handler
}
func (l *Logger) getHandler() Handler {
l.handler_mtx.RLock()
defer l.handler_mtx.RUnlock()
return l.handler
}
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