smbsequencer

Documentation

Overview

Package smbsequencer provides an smbserver.Sequencer implementation that relies on a non-allocating circular bitmask.

Index

• type Sequencer
  • func New(limit int) *Sequencer
  • func (s *Sequencer) Consume(n smb.SeqNum) (ok bool)
  • func (s *Sequencer) Credits() int
  • func (s *Sequencer) Expand(credits int) (ok bool)

Types

type Sequencer

type Sequencer struct {
	// contains filtered or unexported fields
}

Sequencer keeps track of message sequence numbers for a connection. It must be created by calling New.

func New

func New(limit int) *Sequencer

New returns a new sequencer without any credits. The maximum number of credits allowed will be constrained by limit.

func (*Sequencer) Consume

func (s *Sequencer) Consume(n smb.SeqNum) (ok bool)

Consume removes the given sequence number from the list of outstanding sequence numbers.

If the sequence number has already been consumed or is not outstanding it returns false.

func (*Sequencer) Credits

func (s *Sequencer) Credits() int

Credits returns the current number of credits allocated to the connection. This is the number of outstanding sequence numbers.

func (*Sequencer) Expand

func (s *Sequencer) Expand(credits int) (ok bool)

Expand increases the number of outstanding sequence numbers for the connection by credits.

If the expansion would cause the sequence numbers to wrap or a limit to be exceeded it returns false.