loopdb: enable logging

Previous code in log.go assumed there would by sub system level
enable/disable for loop. This is not yet in place, so converting to same
style as used in the lndclient package.
pull/55/head
Joost Jager 5 years ago
parent 1b306ad425
commit 7d6ed06d5c
No known key found for this signature in database
GPG Key ID: A61B9D4C393C59C7

@ -1,44 +1,21 @@
package loopdb package loopdb
import ( import (
"os"
"github.com/btcsuite/btclog" "github.com/btcsuite/btclog"
) )
// log is a logger that is initialized with no output filters. This means var (
// the package will not perform any logging by default until the caller backendLog = btclog.NewBackend(logWriter{})
// requests it. log = backendLog.Logger("STORE")
var log btclog.Logger )
// The default amount of logging is none.
func init() {
DisableLog()
}
// DisableLog disables all library log output. Logging output is disabled
// by default until either UseLogger or SetLogWriter are called.
func DisableLog() {
log = btclog.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 btclog.
func UseLogger(logger btclog.Logger) {
log = logger
}
// logClosure is used to provide a closure over expensive logging operations so
// don't have to be performed when the logging level doesn't warrant it.
type logClosure func() string
// String invokes the underlying function and returns the result. // logWriter implements an io.Writer that outputs to both standard output and
func (c logClosure) String() string { // the write-end pipe of an initialized log rotator.
return c() type logWriter struct{}
}
// newLogClosure returns a new closure over a function that returns a string func (logWriter) Write(p []byte) (n int, err error) {
// which itself provides a Stringer interface so that it can be used with the os.Stdout.Write(p)
// logging system. return len(p), nil
func newLogClosure(c func() string) logClosure {
return logClosure(c)
} }

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