github.com/btcsuite/btcd@v0.24.0/mempool/log.go (about)

     1  // Copyright (c) 2013-2016 The btcsuite developers
     2  // Use of this source code is governed by an ISC
     3  // license that can be found in the LICENSE file.
     4  
     5  package mempool
     6  
     7  import (
     8  	"github.com/btcsuite/btclog"
     9  )
    10  
    11  // log is a logger that is initialized with no output filters.  This
    12  // means the package will not perform any logging by default until the caller
    13  // requests it.
    14  var log btclog.Logger
    15  
    16  // The default amount of logging is none.
    17  func init() {
    18  	DisableLog()
    19  }
    20  
    21  // DisableLog disables all library log output.  Logging output is disabled
    22  // by default until either UseLogger or SetLogWriter are called.
    23  func DisableLog() {
    24  	log = btclog.Disabled
    25  }
    26  
    27  // UseLogger uses a specified Logger to output package logging info.
    28  // This should be used in preference to SetLogWriter if the caller is also
    29  // using btclog.
    30  func UseLogger(logger btclog.Logger) {
    31  	log = logger
    32  }
    33  
    34  // pickNoun returns the singular or plural form of a noun depending
    35  // on the count n.
    36  func pickNoun(n int, singular, plural string) string {
    37  	if n == 1 {
    38  		return singular
    39  	}
    40  	return plural
    41  }