31 lines
635 B
Go
31 lines
635 B
Go
|
package bigcache
|
||
|
|
|
||
|
|
import (
|
||
|
|
"log"
|
||
|
|
"os"
|
||
|
|
)
|
||
|
|
|
||
|
|
// Logger is invoked when `Config.Verbose=true`
|
||
|
|
type Logger interface {
|
||
|
|
Printf(format string, v ...interface{})
|
||
|
|
}
|
||
|
|
|
||
|
|
// this is a safeguard, breaking on compile time in case
|
||
|
|
// `log.Logger` does not adhere to our `Logger` interface.
|
||
|
|
// see https://golang.org/doc/faq#guarantee_satisfies_interface
|
||
|
|
var _ Logger = &log.Logger{}
|
||
|
|
|
||
|
|
// DefaultLogger returns a `Logger` implementation
|
||
|
|
// backed by stdlib's log
|
||
|
|
func DefaultLogger() *log.Logger {
|
||
|
|
return log.New(os.Stdout, "", log.LstdFlags)
|
||
|
|
}
|
||
|
|
|
||
|
|
func newLogger(custom Logger) Logger {
|
||
|
|
if custom != nil {
|
||
|
|
return custom
|
||
|
|
}
|
||
|
|
|
||
|
|
return DefaultLogger()
|
||
|
|
}
|