datachannel

type ChannelAck ¶

type ChannelAck struct{}

ChannelAck is used to ACK a DataChannel open

func (c *ChannelAck) Marshal() ([]byte, error)

func (c *ChannelAck) Unmarshal(raw []byte) error

type ChannelOpen ¶

type ChannelOpen struct {
	ChannelType          ChannelType
	Priority             uint16
	ReliabilityParameter uint32

	Label    []byte
	Protocol []byte
}

ChannelOpen represents a DATA_CHANNEL_OPEN Message

0                   1                   2                   3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Message Type | Channel Type | Priority | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Reliability Parameter | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | Label Length | Protocol Length | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | | Label | | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | | | Protocol | | | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

func (c *ChannelOpen) Marshal() ([]byte, error)

func (c *ChannelOpen) Unmarshal(raw []byte) error

type ChannelType ¶

type ChannelType byte

ChannelType determines the reliability of the WebRTC DataChannel

const (
	// ChannelTypeReliable determines the Data Channel provides a
	// reliable in-order bi-directional communication.
	ChannelTypeReliable ChannelType = 0x00
	// ChannelTypeReliableUnordered determines the Data Channel
	// provides a reliable unordered bi-directional communication.
	ChannelTypeReliableUnordered ChannelType = 0x80
	// ChannelTypePartialReliableRexmit determines the Data Channel
	// provides a partially-reliable in-order bi-directional communication.
	// User messages will not be retransmitted more times than specified in the Reliability Parameter.
	ChannelTypePartialReliableRexmit ChannelType = 0x01
	// ChannelTypePartialReliableRexmitUnordered determines
	//  the Data Channel provides a partial reliable unordered bi-directional communication.
	// User messages will not be retransmitted more times than specified in the Reliability Parameter.
	ChannelTypePartialReliableRexmitUnordered ChannelType = 0x81
	// ChannelTypePartialReliableTimed determines the Data Channel
	// provides a partial reliable in-order bi-directional communication.
	// User messages might not be transmitted or retransmitted after
	// a specified life-time given in milli- seconds in the Reliability Parameter.
	// This life-time starts when providing the user message to the protocol stack.
	ChannelTypePartialReliableTimed ChannelType = 0x02
	// The Data Channel provides a partial reliable unordered bi-directional
	// communication.  User messages might not be transmitted or retransmitted
	// after a specified life-time given in milli- seconds in the Reliability Parameter.
	// This life-time starts when providing the user message to the protocol stack.
	ChannelTypePartialReliableTimedUnordered ChannelType = 0x82
)

type Message ¶

type Message interface {
	Marshal() ([]byte, error)
	Unmarshal([]byte) error
}

Message is a parsed DataChannel message

func Parse(raw []byte) (Message, error)

type MessageType ¶

type MessageType byte

MessageType is the first byte in a DataChannel message that specifies type

const (
	DataChannelAck  MessageType = 0x02
	DataChannelOpen MessageType = 0x03
)

type Payload ¶

type Payload interface {
	PayloadType() PayloadType
}

Payload is the body of a DataChannel message

type PayloadBinary ¶

type PayloadBinary struct {
	Data []byte
}

PayloadBinary is a binary DataChannel message

func (p PayloadBinary) PayloadType() PayloadType

type PayloadString ¶

type PayloadString struct {
	Data []byte
}

PayloadString is a string DataChannel message

func (p PayloadString) PayloadType() PayloadType

type PayloadType ¶

type PayloadType int

PayloadType are the different types of data that can be represented in a DataChannel message

func (p PayloadType) String() string