broadcast

package
v0.0.0-...-8220f0d Latest Latest
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 Go to latest Published: Feb 3, 2019 License: MIT Imports: 23 Imported by: 0

Documentation

Overview

Package broadcast implements the network broadcast and consensus within a shard.

Index

Constants

This section is empty.

Variables

View Source 
var OP_name = map[int32]string{
	0: "UNKNOWN",
	1: "ACK_BROADCAST",
	2: "BROADCAST",
	3: "GET_BLOCKS",
	4: "GET_ROUNDS",
	5: "LIST_BLOCKS",
}
View Source 
var OP_value = map[string]int32{
	"UNKNOWN":       0,
	"ACK_BROADCAST": 1,
	"BROADCAST":     2,
	"GET_BLOCKS":    3,
	"GET_ROUNDS":    4,
	"LIST_BLOCKS":   5,
}

Functions

func Replay 

func Replay(dir string, nodeID uint64, g *blockmania.Graph, start uint64, batch int) error

Replay loads all blocks from the given start point and replays them onto the graph in the given batch size.

Types

type AckBroadcast 

type AckBroadcast struct {
	Last                 uint64   `protobuf:"varint,1,opt,name=last,proto3" json:"last,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func (*AckBroadcast) Descriptor 

func (*AckBroadcast) Descriptor() ([]byte, []int)

func (*AckBroadcast) GetLast 

func (m *AckBroadcast) GetLast() uint64

func (*AckBroadcast) ProtoMessage 

func (*AckBroadcast) ProtoMessage()

func (*AckBroadcast) Reset 

func (m *AckBroadcast) Reset()

func (*AckBroadcast) String 

func (m *AckBroadcast) String() string

func (*AckBroadcast) XXX_DiscardUnknown 

func (m *AckBroadcast) XXX_DiscardUnknown()

func (*AckBroadcast) XXX_Marshal 

func (m *AckBroadcast) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*AckBroadcast) XXX_Merge 

func (dst *AckBroadcast) XXX_Merge(src proto.Message)

func (*AckBroadcast) XXX_Size 

func (m *AckBroadcast) XXX_Size() int

func (*AckBroadcast) XXX_Unmarshal 

func (m *AckBroadcast) XXX_Unmarshal(b []byte) error

type Block 

type Block struct {
	Node                 uint64        `protobuf:"varint,1,opt,name=node,proto3" json:"node,omitempty"`
	Previous             *SignedData   `protobuf:"bytes,2,opt,name=previous" json:"previous,omitempty"`
	References           []*SignedData `protobuf:"bytes,3,rep,name=references" json:"references,omitempty"`
	Round                uint64        `protobuf:"varint,4,opt,name=round,proto3" json:"round,omitempty"`
	Transactions         *Transactions `protobuf:"bytes,5,opt,name=transactions" json:"transactions,omitempty"`
	XXX_NoUnkeyedLiteral struct{}      `json:"-"`
	XXX_unrecognized     []byte        `json:"-"`
	XXX_sizecache        int32         `json:"-"`
}

func (*Block) Descriptor 

func (*Block) Descriptor() ([]byte, []int)

func (*Block) GetNode 

func (m *Block) GetNode() uint64

func (*Block) GetPrevious 

func (m *Block) GetPrevious() *SignedData

func (*Block) GetReferences 

func (m *Block) GetReferences() []*SignedData

func (*Block) GetRound 

func (m *Block) GetRound() uint64

func (*Block) GetTransactions 

func (m *Block) GetTransactions() *Transactions

func (*Block) Iter 

func (b *Block) Iter() *TxIterator

Iter returns a iterator for the block's transactions.

func (*Block) ProtoMessage 

func (*Block) ProtoMessage()

func (*Block) Reset 

func (m *Block) Reset()

func (*Block) String 

func (m *Block) String() string

func (*Block) XXX_DiscardUnknown 

func (m *Block) XXX_DiscardUnknown()

func (*Block) XXX_Marshal 

func (m *Block) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Block) XXX_Merge 

func (dst *Block) XXX_Merge(src proto.Message)

func (*Block) XXX_Size 

func (m *Block) XXX_Size() int

func (*Block) XXX_Unmarshal 

func (m *Block) XXX_Unmarshal(b []byte) error

type BlockReference 

type BlockReference struct {
	Hash                 []byte   `protobuf:"bytes,1,opt,name=hash,proto3" json:"hash,omitempty"`
	Node                 uint64   `protobuf:"varint,2,opt,name=node,proto3" json:"node,omitempty"`
	Round                uint64   `protobuf:"varint,3,opt,name=round,proto3" json:"round,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func (*BlockReference) Descriptor 

func (*BlockReference) Descriptor() ([]byte, []int)

func (*BlockReference) GetHash 

func (m *BlockReference) GetHash() []byte

func (*BlockReference) GetNode 

func (m *BlockReference) GetNode() uint64

func (*BlockReference) GetRound 

func (m *BlockReference) GetRound() uint64

func (*BlockReference) ProtoMessage 

func (*BlockReference) ProtoMessage()

func (*BlockReference) Reset 

func (m *BlockReference) Reset()

func (*BlockReference) Size 

func (b *BlockReference) Size() int

Size returns the rough size of a BlockReference in bytes.

func (*BlockReference) String 

func (m *BlockReference) String() string

func (*BlockReference) XXX_DiscardUnknown 

func (m *BlockReference) XXX_DiscardUnknown()

func (*BlockReference) XXX_Marshal 

func (m *BlockReference) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*BlockReference) XXX_Merge 

func (dst *BlockReference) XXX_Merge(src proto.Message)

func (*BlockReference) XXX_Size 

func (m *BlockReference) XXX_Size() int

func (*BlockReference) XXX_Unmarshal 

func (m *BlockReference) XXX_Unmarshal(b []byte) error

type Broadcaster 

type Broadcaster interface {
	AddTransaction(txdata []byte, fee uint64) error
	Register(cb Callback)
}

type Callback 

type Callback func(round uint64, blocks []*SignedData)

Callback defines the delivery callback registered with the broadcast service. The callback should call Acknowledge at some point so as to mark the delivery of the round as successful.

type Config 

type Config struct {
	Broadcast     *config.Broadcast
	Connections   *config.Connections
	Directory     string
	Key           signature.KeyPair
	Keys          map[uint64]signature.PublicKey
	MaxPayload    int
	NetConsensus  *config.NetConsensus
	NodeConsensus *config.NodeConsensus
	NodeID        uint64
	Peers         []uint64
}

Config for the broadcast service.

type GetBlocks 

type GetBlocks struct {
	Blocks               []*BlockReference `protobuf:"bytes,1,rep,name=blocks" json:"blocks,omitempty"`
	XXX_NoUnkeyedLiteral struct{}          `json:"-"`
	XXX_unrecognized     []byte            `json:"-"`
	XXX_sizecache        int32             `json:"-"`
}

func (*GetBlocks) Descriptor 

func (*GetBlocks) Descriptor() ([]byte, []int)

func (*GetBlocks) GetBlocks 

func (m *GetBlocks) GetBlocks() []*BlockReference

func (*GetBlocks) ProtoMessage 

func (*GetBlocks) ProtoMessage()

func (*GetBlocks) Reset 

func (m *GetBlocks) Reset()

func (*GetBlocks) String 

func (m *GetBlocks) String() string

func (*GetBlocks) XXX_DiscardUnknown 

func (m *GetBlocks) XXX_DiscardUnknown()

func (*GetBlocks) XXX_Marshal 

func (m *GetBlocks) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*GetBlocks) XXX_Merge 

func (dst *GetBlocks) XXX_Merge(src proto.Message)

func (*GetBlocks) XXX_Size 

func (m *GetBlocks) XXX_Size() int

func (*GetBlocks) XXX_Unmarshal 

func (m *GetBlocks) XXX_Unmarshal(b []byte) error

type GetRounds 

type GetRounds struct {
	Rounds               []uint64 `protobuf:"varint,1,rep,packed,name=rounds" json:"rounds,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func (*GetRounds) Descriptor 

func (*GetRounds) Descriptor() ([]byte, []int)

func (*GetRounds) GetRounds 

func (m *GetRounds) GetRounds() []uint64

func (*GetRounds) ProtoMessage 

func (*GetRounds) ProtoMessage()

func (*GetRounds) Reset 

func (m *GetRounds) Reset()

func (*GetRounds) String 

func (m *GetRounds) String() string

func (*GetRounds) XXX_DiscardUnknown 

func (m *GetRounds) XXX_DiscardUnknown()

func (*GetRounds) XXX_Marshal 

func (m *GetRounds) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*GetRounds) XXX_Merge 

func (dst *GetRounds) XXX_Merge(src proto.Message)

func (*GetRounds) XXX_Size 

func (m *GetRounds) XXX_Size() int

func (*GetRounds) XXX_Unmarshal 

func (m *GetRounds) XXX_Unmarshal(b []byte) error

type ListBlocks 

type ListBlocks struct {
	Blocks               []*SignedData `protobuf:"bytes,1,rep,name=blocks" json:"blocks,omitempty"`
	XXX_NoUnkeyedLiteral struct{}      `json:"-"`
	XXX_unrecognized     []byte        `json:"-"`
	XXX_sizecache        int32         `json:"-"`
}

func (*ListBlocks) Descriptor 

func (*ListBlocks) Descriptor() ([]byte, []int)

func (*ListBlocks) GetBlocks 

func (m *ListBlocks) GetBlocks() []*SignedData

func (*ListBlocks) ProtoMessage 

func (*ListBlocks) ProtoMessage()

func (*ListBlocks) Reset 

func (m *ListBlocks) Reset()

func (*ListBlocks) String 

func (m *ListBlocks) String() string

func (*ListBlocks) XXX_DiscardUnknown 

func (m *ListBlocks) XXX_DiscardUnknown()

func (*ListBlocks) XXX_Marshal 

func (m *ListBlocks) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*ListBlocks) XXX_Merge 

func (dst *ListBlocks) XXX_Merge(src proto.Message)

func (*ListBlocks) XXX_Size 

func (m *ListBlocks) XXX_Size() int

func (*ListBlocks) XXX_Unmarshal 

func (m *ListBlocks) XXX_Unmarshal(b []byte) error

type OP 

type OP int32
const (
	OP_UNKNOWN       OP = 0
	OP_ACK_BROADCAST OP = 1
	OP_BROADCAST     OP = 2
	OP_GET_BLOCKS    OP = 3
	OP_GET_ROUNDS    OP = 4
	OP_LIST_BLOCKS   OP = 5
)

func (OP) EnumDescriptor 

func (OP) EnumDescriptor() ([]byte, []int)

func (OP) String 

func (x OP) String() string

type Service 

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

Service implements the broadcast and consensus system.

TODO(tav): pad/re-order to minimise false sharing.

func New 

func New(ctx context.Context, cfg *Config, top *network.Topology) (*Service, error)

New returns a fully instantiated broadcaster service.

func (*Service) Acknowledge 

func (s *Service) Acknowledge(round uint64)

Acknowledge should be called by BroadcastEnd in the registered Callback to mark a particular round as being fully delivered. If not, all unacknowledged rounds will be replayed when the node restarts.

func (*Service) AddTransaction 

func (s *Service) AddTransaction(txdata []byte, fee uint64) error

AddTransaction adds the given transaction data onto a queue to be added to the current block.

func (*Service) Handle 

func (s *Service) Handle(peerID uint64, msg *service.Message) (*service.Message, error)

Handle implements the service Handler interface for handling messages received over a connection.

func (*Service) Name 

func (s *Service) Name() string

Name specifies the name of the service for use in debugging service handlers.

func (*Service) Register 

func (s *Service) Register(cb Callback)

Register saves the given callback to be called when transactions have reached consensus. It'll also trigger the replaying of any unacknowledged rounds.

type SignedData 

type SignedData struct {
	Data                 []byte   `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"`
	Signature            []byte   `protobuf:"bytes,2,opt,name=signature,proto3" json:"signature,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

The data of a SignedData may either be an encoded Block or BlockReference.

func (*SignedData) Block 

func (s *SignedData) Block() (*Block, error)

Block returns the decoded Block struct assuming the SignedData is of a Block.

func (*SignedData) Descriptor 

func (*SignedData) Descriptor() ([]byte, []int)

func (*SignedData) Digest 

func (s *SignedData) Digest() []byte

Digest returns the hash of the underlying data.

func (*SignedData) GetData 

func (m *SignedData) GetData() []byte

func (*SignedData) GetSignature 

func (m *SignedData) GetSignature() []byte

func (*SignedData) ProtoMessage 

func (*SignedData) ProtoMessage()

func (*SignedData) Reset 

func (m *SignedData) Reset()

func (*SignedData) Size 

func (s *SignedData) Size() int

Size returns the rough size of the SignedData in bytes.

func (*SignedData) String 

func (m *SignedData) String() string

func (*SignedData) XXX_DiscardUnknown 

func (m *SignedData) XXX_DiscardUnknown()

func (*SignedData) XXX_Marshal 

func (m *SignedData) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*SignedData) XXX_Merge 

func (dst *SignedData) XXX_Merge(src proto.Message)

func (*SignedData) XXX_Size 

func (m *SignedData) XXX_Size() int

func (*SignedData) XXX_Unmarshal 

func (m *SignedData) XXX_Unmarshal(b []byte) error

type TransactionData 

type TransactionData struct {
	Data []byte
	Fee  uint64
}

TransactionData represents the transaction's combined data and fee.

type TransactionList 

type TransactionList []TransactionData

TransactionList wraps a slice of TransactionData for the purposes of sorting.

func (TransactionList) Sort 

func (t TransactionList) Sort()

Sort orders the TransactionList in descending order of the transaction fee and then hash if the fees are equal.

type Transactions 

type Transactions struct {
	Count                uint64   `protobuf:"varint,1,opt,name=count,proto3" json:"count,omitempty"`
	Data                 []byte   `protobuf:"bytes,2,opt,name=data,proto3" json:"data,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func (*Transactions) Descriptor 

func (*Transactions) Descriptor() ([]byte, []int)

func (*Transactions) GetCount 

func (m *Transactions) GetCount() uint64

func (*Transactions) GetData 

func (m *Transactions) GetData() []byte

func (*Transactions) ProtoMessage 

func (*Transactions) ProtoMessage()

func (*Transactions) Reset 

func (m *Transactions) Reset()

func (*Transactions) String 

func (m *Transactions) String() string

func (*Transactions) XXX_DiscardUnknown 

func (m *Transactions) XXX_DiscardUnknown()

func (*Transactions) XXX_Marshal 

func (m *Transactions) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Transactions) XXX_Merge 

func (dst *Transactions) XXX_Merge(src proto.Message)

func (*Transactions) XXX_Size 

func (m *Transactions) XXX_Size() int

func (*Transactions) XXX_Unmarshal 

func (m *Transactions) XXX_Unmarshal(b []byte) error

type TxIterator 

type TxIterator struct {
	TxData []byte
	TxFee  uint64
	// contains filtered or unexported fields
}

TxIterator provides support for iterating over a Block's transactions.

func (*TxIterator) Next 

func (t *TxIterator) Next()

Next moves the iterator forward. The TxData and TxFee values of the iterator are only valid until the next call to Next().

func (*TxIterator) Valid 

func (t *TxIterator) Valid() bool

Valid returns whether the iterator is still valid and has more elements to iterate over.

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