a6965d493f
The btclog package has been changed to defining its own logging interface (rather than seelog's) and provides a default implementation for callers to use. There are two primary advantages to the new logger implementation. First, all log messages are created before the call returns. Compared to seelog, this prevents data races when mutable variables are logged. Second, the new logger does not implement any kind of artifical rate limiting (what seelog refers to as "adaptive logging"). Log messages are outputted as soon as possible and the application will appear to perform much better when watching standard output. Because log rotation is not a feature of the btclog logging implementation, it is handled by the main package by importing a file rotation package that provides an io.Reader interface for creating output to a rotating file output. The rotator has been configured with the same defaults that btcd previously used in the seelog config (10MB file limits with maximum of 3 rolls) but now compresses newly created roll files. Due to the high compressibility of log text, the compressed files typically reduce to around 15-30% of the original 10MB file.
31 lines
758 B
Go
31 lines
758 B
Go
// Copyright (c) 2013-2016 The btcsuite developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package blockchain
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import (
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"github.com/btcsuite/btclog"
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)
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// log is a logger that is initialized with no output filters. This
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// means the package will not perform any logging by default until the caller
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// requests it.
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var log btclog.Logger
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// The default amount of logging is none.
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func init() {
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DisableLog()
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}
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// DisableLog disables all library log output. Logging output is disabled
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// by default until UseLogger is called.
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func DisableLog() {
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log = btclog.Disabled
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}
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// UseLogger uses a specified Logger to output package logging info.
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func UseLogger(logger btclog.Logger) {
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log = logger
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}
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