util

Documentation

Index

• Constants
• Variables
• func MustOpen(name string, flag int, perm uint32) *os.File
• func NewLogger(format string, a ...interface{}) *log.Logger
• func Packi64(b []byte, n int64)
• func RandBytes(b []byte)
• func RandHexString(bits int) string
• func RandId() string
• func Unpacki64(b []byte) (n int64)
• type NullWriter
  • func (nw NullWriter) Write(p []byte) (int, os.Error)

Constants

const IdBits = 64

Sufficient for 10**6 simultaneous IDs with probability of collision less than 10**-7.

Variables

var (
	LogWriter io.Writer = NullWriter{}
)

Logging

Functions

func MustOpen

func MustOpen(name string, flag int, perm uint32) *os.File

MustOpen is like os.Open but panics if the file cannot be opened. It simplifies safe initialization of global variables holding file descriptors.

func NewLogger

func NewLogger(format string, a ...interface{}) *log.Logger

func Packi64

func Packi64(b []byte, n int64)

func RandBytes

func RandBytes(b []byte)

func RandHexString

func RandHexString(bits int) string

func RandId

func RandId() string

Generates a random string with IdBits bits of entropy. The string will contain only the characters [0-9a-f] and dot, formatted for easier reading.

func Unpacki64

func Unpacki64(b []byte) (n int64)

Types

type NullWriter

type NullWriter struct{}

func (NullWriter) Write

func (nw NullWriter) Write(p []byte) (int, os.Error)