1// Copyright 2013, Örjan Persson. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5package logging 6 7// defaultBackend is the backend used for all logging calls. 8var defaultBackend LeveledBackend 9 10// Backend is the interface which a log backend need to implement to be able to 11// be used as a logging backend. 12type Backend interface { 13 Log(Level, int, *Record) error 14} 15 16// Set backend replaces the backend currently set with the given new logging 17// backend. 18func SetBackend(backends ...Backend) LeveledBackend { 19 var backend Backend 20 if len(backends) == 1 { 21 backend = backends[0] 22 } else { 23 backend = MultiLogger(backends...) 24 } 25 26 defaultBackend = AddModuleLevel(backend) 27 return defaultBackend 28} 29 30// SetLevel sets the logging level for the specified module. The module 31// corresponds to the string specified in GetLogger. 32func SetLevel(level Level, module string) { 33 defaultBackend.SetLevel(level, module) 34} 35 36// GetLevel returns the logging level for the specified module. 37func GetLevel(module string) Level { 38 return defaultBackend.GetLevel(module) 39} 40