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Logging for the hop package is controlled via the parent htlcswitch package. Unfortunately the parent package only controlled the initialization, but didn't enable the logger when the log level came in from the main lnd package.
50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
package htlcswitch
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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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"github.com/lightningnetwork/lnd/htlcswitch/hop"
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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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logger := build.NewSubLogger("HSWC", nil)
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UseLogger(logger)
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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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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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// This should be used in preference to SetLogWriter if the caller is also
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// using btclog.
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func UseLogger(logger btclog.Logger) {
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log = logger
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hop.UseLogger(logger)
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}
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// logClosure is used to provide a closure over expensive logging operations so
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// don't have to be 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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