57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
|
// Copyright (c) 2013 Conformal Systems LLC.
|
||
|
|
// Use of this source code is governed by an ISC
|
||
|
|
// license that can be found in the LICENSE file.
|
||
|
|
|
||
|
|
package btcdb
|
||
|
|
|
||
|
|
import (
|
||
|
|
"errors"
|
||
|
|
"github.com/conformal/seelog"
|
||
|
|
"io"
|
||
|
|
)
|
||
|
|
|
||
|
|
// log is a logger that is initialized with no output filters. This
|
||
|
|
// means the package will not perform any logging by default until the caller
|
||
|
|
// requests it.
|
||
|
|
var log seelog.LoggerInterface
|
||
|
|
|
||
|
|
// The default amount of logging is none.
|
||
|
|
func init() {
|
||
|
|
DisableLog()
|
||
|
|
}
|
||
|
|
|
||
|
|
// DisableLog disables all library log output. Logging output is disabled
|
||
|
|
// by default until either UserLogger or SetLogWriter are called.
|
||
|
|
func DisableLog() {
|
||
|
|
log = seelog.Disabled
|
||
|
|
}
|
||
|
|
|
||
|
|
// UseLogger uses a specified Logger to output package logging info.
|
||
|
|
// This should be used in preference to SetLogWriter if the caller is also
|
||
|
|
// using seelog.
|
||
|
|
func UseLogger(logger seelog.LoggerInterface) {
|
||
|
|
log = logger
|
||
|
|
}
|
||
|
|
|
||
|
|
// SetLogWriter uses a specified io.Writer to output package logging info.
|
||
|
|
// This allows a caller to direct package logging output without needing a
|
||
|
|
// dependency on seelog. If the caller is also using seelog, UseLogger should
|
||
|
|
// be used instead.
|
||
|
|
func SetLogWriter(w io.Writer) error {
|
||
|
|
if w == nil {
|
||
|
|
return errors.New("nil writer")
|
||
|
|
}
|
||
|
|
|
||
|
|
l, err := seelog.LoggerFromWriterWithMinLevel(w, seelog.TraceLvl)
|
||
|
|
if err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
UseLogger(l)
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func GetLog() seelog.LoggerInterface {
|
||
|
|
return log
|
||
|
|
}
|