events

package
v0.1.37 Latest Latest
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 Go to latest Published: Jun 10, 2021 License: MIT Imports: 13 Imported by: 3

Documentation

Overview

Package events defines events published by go-spacemsh node using nodes pubsub

Index

Constants

View Source 
const (
	LayerStatusTypeUnknown   = iota
	LayerStatusTypeApproved  // approved by Hare
	LayerStatusTypeConfirmed // confirmed by Tortoise
)

The status of a layer

Variables

This section is empty.

Functions

func CloseEventPubSub added in v0.1.16 

func CloseEventPubSub()

CloseEventPubSub closes events pubsub and destroys it

func CloseEventReporter added in v0.1.15 

func CloseEventReporter()

CloseEventReporter shuts down the event reporting service and closes open channels

func InitializeEventPubsub 

func InitializeEventPubsub(ur string)

InitializeEventPubsub initializes the global pubsub broadcaster server

func InitializeEventReporter added in v0.1.15 

func InitializeEventReporter(url string) error

InitializeEventReporter initializes the event reporting interface

func InitializeEventReporterWithOptions added in v0.1.15 

func InitializeEventReporterWithOptions(url string, bufsize int) error

InitializeEventReporterWithOptions initializes the event reporting interface with a nonzero channel buffer. This is useful for testing, where we want reporting to block.

func Publish 

func Publish(event Event)

Publish publishes an event on the pubsub singleton.

func ReportAccountUpdate added in v0.1.15 

func ReportAccountUpdate(a types.Address)

ReportAccountUpdate reports an account whose data has been updated

func ReportAtxCreated added in v0.1.15 

func ReportAtxCreated(created bool, layer uint64, id string)

ReportAtxCreated reports a created activation

func ReportDoneCreatingBlock added in v0.1.15 

func ReportDoneCreatingBlock(eligible bool, layer uint64, error string)

ReportDoneCreatingBlock reports a created block

func ReportError added in v0.1.15 

func ReportError(err NodeError)

ReportError reports an error

func ReportNewActivation added in v0.1.15 

func ReportNewActivation(activation *types.ActivationTx)

ReportNewActivation reports a new activation

func ReportNewBlock added in v0.1.15 

func ReportNewBlock(blk *types.Block)

ReportNewBlock reports a new block

func ReportNewLayer added in v0.1.15 

func ReportNewLayer(layer NewLayer)

ReportNewLayer reports a new layer

func ReportNewTx added in v0.1.15 

func ReportNewTx(tx *types.Transaction)

ReportNewTx dispatches incoming events to the reporter singleton

func ReportNodeStatusUpdate added in v0.1.15 

func ReportNodeStatusUpdate()

ReportNodeStatusUpdate reports an update to the node status. It just pings the listener to notify them that there is an update; the listener is responsible for fetching the new status details. This is because status contains disparate information coming from different services, and the listener already knows how to gather that information so there is no point in duplicating that logic here. Note: There is some overlap with channelLayer here, as a new latest or verified layer should be sent over that channel as well. However, that happens inside the Mesh, at the source. It doesn't currently happen here because the status update includes only a layer ID, not full layer data, and the Reporter currently has no way to retrieve full layer data.

func ReportReceipt added in v0.1.15 

func ReportReceipt(r TxReceipt)

ReportReceipt reports creation or receipt of a new tx receipt

func ReportRewardReceived added in v0.1.15 

func ReportRewardReceived(r Reward)

ReportRewardReceived reports a new reward

func ReportTxWithValidity added in v0.1.15 

func ReportTxWithValidity(tx *types.Transaction, valid bool)

ReportTxWithValidity reports a tx along with whether it was just invalidated

func ReportValidActivation added in v0.1.15 

func ReportValidActivation(activation *types.ActivationTx, valid bool)

ReportValidActivation reports a valid activation

func ReportValidBlock added in v0.1.15 

func ReportValidBlock(blockID types.BlockID, valid bool)

ReportValidBlock reports a block's validity

func ReportValidTx added in v0.1.15 

func ReportValidTx(tx *types.Transaction, valid bool)

ReportValidTx reports a valid transaction

func SubscribeToAccounts added in v0.1.33 

func SubscribeToAccounts() chan types.Address

SubscribeToAccounts subscribes a channel to account update events

func SubscribeToActivations added in v0.1.33 

func SubscribeToActivations() chan *types.ActivationTx

SubscribeToActivations allows a process to subscribe to events of activations

func SubscribeToErrors added in v0.1.33 

func SubscribeToErrors() chan NodeError

SubscribeToErrors allows a goroutine to receive a channel for error notifications

func SubscribeToLayerChannel added in v0.1.33 

func SubscribeToLayerChannel() chan NewLayer

SubscribeToLayerChannel allows a process to subscribe to events of newLayers

func SubscribeToLayers added in v0.1.15 

func SubscribeToLayers(newLayerCh timesync.LayerTimer)

SubscribeToLayers is used to track and report automatically every time a new layer is reached.

func SubscribeToReceipts added in v0.1.33 

func SubscribeToReceipts() chan TxReceipt

SubscribeToReceipts allows a process to subscribe to receipt events

func SubscribeToRewards added in v0.1.33 

func SubscribeToRewards() chan Reward

SubscribeToRewards subscribes a channel to rewards events

func SubscribeToStatus added in v0.1.33 

func SubscribeToStatus() chan struct{}

SubscribeToStatus subscribes a channel to receive status updates

func SubscribeToTxChannel added in v0.1.33 

func SubscribeToTxChannel() chan TransactionWithValidity

SubscribeToTxChannel subscribes a process to tx updates

func UnsubscribeFromAccounts added in v0.1.33 

func UnsubscribeFromAccounts(subscriptionChannel chan types.Address)

UnsubscribeFromAccounts unsubscribes a channel from accounts events do we need to close the subscriber channel here?

func UnsubscribeFromActivations added in v0.1.33 

func UnsubscribeFromActivations(subscriptionChannel chan *types.ActivationTx)

UnsubscribeFromActivations allows a process to unsubscribe from layer events

func UnsubscribeFromErrors added in v0.1.33 

func UnsubscribeFromErrors(subscriberChannel chan NodeError)

UnsubscribeFromErrors allows a goroutine to unsubscribe from the error channel

func UnsubscribeFromLayerChannel added in v0.1.33 

func UnsubscribeFromLayerChannel(subscriptionChannel chan NewLayer)

UnsubscribeFromLayerChannel allows a process to unsubscribe from layer events

func UnsubscribeFromReceipts added in v0.1.33 

func UnsubscribeFromReceipts(subscriptionChannel chan TxReceipt)

UnsubscribeFromReceipts removes a channel from receipt event notifications

func UnsubscribeFromRewards added in v0.1.33 

func UnsubscribeFromRewards(subscriptionChannel chan Reward)

UnsubscribeFromRewards unsubscribes a channel from rewards events do we need to close the subscriber channel here?

func UnsubscribeFromStatus added in v0.1.33 

func UnsubscribeFromStatus(subscriberChannel chan struct{})

UnsubscribeFromStatus unsubscribes a channel from receiving status updates

func UnsubscribeFromTxChannel added in v0.1.33 

func UnsubscribeFromTxChannel(subscriptionChannel chan TransactionWithValidity)

UnsubscribeFromTxChannel unsubscribes a process from tx updates

Types

type AtxCreated 

type AtxCreated struct {
	Created bool
	ID      string
	Layer   uint64
}

AtxCreated signals this miner has created an activation transaction

func (AtxCreated) GetChannel 

func (AtxCreated) GetChannel() ChannelID

GetChannel gets the message type which means on which this message should be sent

type ChannelID added in v0.1.11 

type ChannelID byte

ChannelID is the ID on which subscribers must register in order to listen to messages on the channel. 

const (
	EventNewBlock ChannelID = 1 + iota
	EventBlockValid
	EventNewAtx
	EventAtxValid
	EventNewTx
	EventTxValid
	EventRewardReceived
	EventCreatedBlock
	EventCreatedAtx
)

These consts are used as prefixes for different messages in pubsub

type DoneCreatingBlock 

type DoneCreatingBlock struct {
	Eligible bool
	Layer    uint64
	Error    string
}

DoneCreatingBlock signals that this miner has created a block

func (DoneCreatingBlock) GetChannel 

func (DoneCreatingBlock) GetChannel() ChannelID

GetChannel gets the message type which means on which this message should be sent

type Event 

type Event interface {
	// GetChannel returns the channel on which this message will be published.
	GetChannel() ChannelID
}

Event defines the interface that each message sent by the EventPublisher needs to implemet for it to correctly be routed by topic.

type EventPublisher 

type EventPublisher struct {
	*Publisher
}

EventPublisher is the struct that publishes events to subscribers by topics.

func NewEventPublisher 

func NewEventPublisher(eventURL string) (*EventPublisher, error)

NewEventPublisher is a constructor for the event publisher, it received a url string in format of tcp://localhost:56565 to start listening for connections.

func (*EventPublisher) Close 

func (p *EventPublisher) Close() error

Close closes the published internal socket

func (*EventPublisher) PublishEvent 

func (p *EventPublisher) PublishEvent(event Event) error

PublishEvent publishes the provided event on pubsub infra. It encodes messages using XDR protocol.

type EventReporter added in v0.1.15 

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

EventReporter is the struct that receives incoming events and dispatches them

type NewAtx 

type NewAtx struct {
	ID      string
	LayerID uint64
}

NewAtx signals that a new ATX has been received

func (NewAtx) GetChannel 

func (NewAtx) GetChannel() ChannelID

GetChannel gets the message type which means on which this message should be sent

type NewBlock 

type NewBlock struct {
	ID    string
	Layer uint64
	Atx   string
}

NewBlock is sent when a new block is created by this miner

func (NewBlock) GetChannel 

func (NewBlock) GetChannel() ChannelID

GetChannel gets the message type which means on which this message should be sent

type NewLayer added in v0.1.15 

type NewLayer struct {
	Layer  *types.Layer
	Status int
}

NewLayer packages up a layer with its status (which a layer does not ordinarily contain)

func (NewLayer) Field added in v0.1.15 

func (nl NewLayer) Field() log.Field

Field returns a log field. Implements the LoggableField interface.

type NewTx 

type NewTx struct {
	ID          string
	Origin      string
	Destination string
	Amount      uint64
	Fee         uint64
}

NewTx signals that a new transaction has been received and not yet validated

func (NewTx) GetChannel 

func (NewTx) GetChannel() ChannelID

GetChannel gets the message type which means on which this message should be sent

type NodeError added in v0.1.15 

type NodeError struct {
	Msg   string
	Trace string
	Level zapcore.Level
}

NodeError represents an internal error to be reported

type Publisher 

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

Publisher is a wrapper for mangos pubsub publisher socket

func (*Publisher) Close added in v0.1.16 

func (p *Publisher) Close()

Close closes the publishers output socket

type Reward added in v0.1.15 

type Reward struct {
	Layer       types.LayerID
	Total       uint64
	LayerReward uint64
	Coinbase    types.Address
	// TODO: We don't currently have a way to get the Layer Computed.
	// See https://github.com/spacemeshos/go-spacemesh/issues/2275
	//LayerComputed
	Smesher types.NodeID
}

Reward represents a reward object with extra data needed by the API

func (Reward) Field added in v0.1.33 

func (r Reward) Field() log.Field

Field returns a loggable field representation of the Reward struct

func (Reward) String added in v0.1.33 

func (r Reward) String() string

type RewardReceived 

type RewardReceived struct {
	Coinbase  string
	Amount    uint64
	SmesherID []byte
}

RewardReceived signals reward has been received

func (RewardReceived) GetChannel 

func (RewardReceived) GetChannel() ChannelID

GetChannel gets the message type which means on which this message should be sent

type Subscriber 

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

Subscriber defines the struct of the receiving end of the pubsub messages.

func NewSubscriber 

func NewSubscriber(url string) (*Subscriber, error)

NewSubscriber received url string as input on which it will register to receive messages passed by server.

func (*Subscriber) Close 

func (sub *Subscriber) Close() error

Close closes the socket which in turn will Close the listener func

func (*Subscriber) StartListening 

func (sub *Subscriber) StartListening()

StartListening runs in a go routine and listens to all channels this subscriber is registered to. it then passes the messages received to the appropriate reader channel.

func (*Subscriber) Subscribe 

func (sub *Subscriber) Subscribe(topic ChannelID) (chan []byte, error)

Subscribe subscribes to the given topic, returns a channel on which data from the topic is received.

func (*Subscriber) SubscribeToAll 

func (sub *Subscriber) SubscribeToAll() (chan []byte, error)

SubscribeToAll subscribes to all available topics.

type TransactionWithValidity added in v0.1.15 

type TransactionWithValidity struct {
	Transaction *types.Transaction
	Valid       bool
}

TransactionWithValidity wraps a tx with its validity info

type TxReceipt added in v0.1.15 

type TxReceipt struct {
	ID      types.TransactionID
	Result  int
	GasUsed uint64
	Fee     uint64
	Layer   types.LayerID
	Index   uint32
	Address types.Address
}

TxReceipt represents a transaction receipt

func (TxReceipt) Field added in v0.1.33 

func (t TxReceipt) Field() log.Field

Field returns a loggable field representation of the TxReceipt

func (TxReceipt) String added in v0.1.33 

func (t TxReceipt) String() string

type ValidAtx 

type ValidAtx struct {
	ID    string
	Valid bool
}

ValidAtx signals that an activation transaction with id ID has been validated

func (ValidAtx) GetChannel 

func (ValidAtx) GetChannel() ChannelID

GetChannel gets the message type which means on which this message should be sent

type ValidBlock 

type ValidBlock struct {
	ID    string
	Valid bool
}

ValidBlock signals that block with id ID has been validated

func (ValidBlock) GetChannel 

func (ValidBlock) GetChannel() ChannelID

GetChannel gets the message type which means on which this message should be sent

type ValidTx 

type ValidTx struct {
	ID    string
	Valid bool
}

ValidTx signals that the transaction with id ID has been validated

func (ValidTx) GetChannel 

func (ValidTx) GetChannel() ChannelID

GetChannel gets the message type which means on which this message should be sent

Source Files

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