42 lines
1.1 KiB
Go
42 lines
1.1 KiB
Go
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package chancloser
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import (
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"github.com/btcsuite/btclog"
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"github.com/lightningnetwork/lnd/build"
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)
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// chancloserLog is a logger that is initialized with the btclog.Disabled
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// logger.
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var chancloserLog btclog.Logger
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// The default amount of logging is none.
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func init() {
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UseLogger(build.NewSubLogger("CHCL", nil))
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}
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// DisableLog disables all logging output.
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func DisableLog() {
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UseLogger(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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chancloserLog = logger
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}
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// logClosure is used to provide a closure over expensive logging operations
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// so they aren't performed when the logging level doesn't warrant it.
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type logClosure func() string
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// String invokes the underlying function and returns the result.
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func (c logClosure) String() string {
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return c()
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}
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// newLogClosure returns a new closure over a function that returns a string
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// which itself provides a Stringer interface so that it can be used with the
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// logging system.
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func newLogClosure(c func() string) logClosure {
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return logClosure(c)
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}
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