txmgr

package
v2.7.2-rc0 Latest Latest
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 Go to latest Published: Dec 7, 2023 License: MIT Imports: 29 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	// InFlightTransactionRecheckInterval controls how often the Broadcaster
	// will poll the unconfirmed queue to see if it is allowed to send another
	// transaction
	InFlightTransactionRecheckInterval = 1 * time.Second

	// TransmitCheckTimeout controls the maximum amount of time that will be
	// spent on the transmit check.
	TransmitCheckTimeout = 2 * time.Second
)
View Source 
const (
	TxUnstarted               = txmgrtypes.TxState("unstarted")
	TxInProgress              = txmgrtypes.TxState("in_progress")
	TxFatalError              = txmgrtypes.TxState("fatal_error")
	TxUnconfirmed             = txmgrtypes.TxState("unconfirmed")
	TxConfirmed               = txmgrtypes.TxState("confirmed")
	TxConfirmedMissingReceipt = txmgrtypes.TxState("confirmed_missing_receipt")
)
View Source 
const (
	// pollInterval is the maximum amount of time in addition to
	// TxResendAfterThreshold that we will wait before resending an attempt
	DefaultResenderPollInterval = 5 * time.Second
)

Variables

View Source 
var ErrTxRemoved = errors.New("tx removed")

Functions

func NewQueueingTxStrategy 

func NewQueueingTxStrategy(subject uuid.UUID, queueSize uint32, queryTimeout time.Duration) (strategy txmgrtypes.TxStrategy)

NewQueueingTxStrategy creates a new TxStrategy that drops the oldest transactions after the queue size is exceeded if a queue size is specified, and otherwise does not drop transactions.

func NewSendEveryStrategy 

func NewSendEveryStrategy() txmgrtypes.TxStrategy

NewSendEveryStrategy creates a new TxStrategy that does not drop transactions.

Types

type Broadcaster 

type Broadcaster[
	CHAIN_ID types.ID,
	HEAD types.Head[BLOCK_HASH],
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	SEQ types.Sequence,
	FEE feetypes.Fee,
] struct {
	txmgrtypes.TxAttemptBuilder[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]

	utils.StartStopOnce
	// contains filtered or unexported fields
}

Broadcaster monitors txes for transactions that need to be broadcast, assigns sequences and ensures that at least one node somewhere has received the transaction successfully.

This does not guarantee delivery! A whole host of other things can subsequently go wrong such as transactions being evicted from the mempool, nodes going offline etc. Responsibility for ensuring eventual inclusion into the chain falls on the shoulders of the confirmer.

What Broadcaster does guarantee is: - a monotonic series of increasing sequences for txes that can all eventually be confirmed if you retry enough times - transition of txes out of unstarted into either fatal_error or unconfirmed - existence of a saved tx_attempt

func NewBroadcaster 

func NewBroadcaster[
	CHAIN_ID types.ID,
	HEAD types.Head[BLOCK_HASH],
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	SEQ types.Sequence,
	FEE feetypes.Fee,
](
	txStore txmgrtypes.TransactionStore[ADDR, CHAIN_ID, TX_HASH, BLOCK_HASH, SEQ, FEE],
	client txmgrtypes.TransactionClient[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE],
	config txmgrtypes.BroadcasterChainConfig,
	feeConfig txmgrtypes.BroadcasterFeeConfig,
	txConfig txmgrtypes.BroadcasterTransactionsConfig,
	listenerConfig txmgrtypes.BroadcasterListenerConfig,
	keystore txmgrtypes.KeyStore[ADDR, CHAIN_ID, SEQ],
	eventBroadcaster pg.EventBroadcaster,
	txAttemptBuilder txmgrtypes.TxAttemptBuilder[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE],
	sequenceSyncer SequenceSyncer[ADDR, TX_HASH, BLOCK_HASH, SEQ],
	logger logger.Logger,
	checkerFactory TransmitCheckerFactory[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE],
	autoSyncSequence bool,
	parseAddress func(string) (ADDR, error),
	generateNextSequence types.GenerateNextSequenceFunc[SEQ],
) *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Close 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Close() error

Close closes the Broadcaster

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) GetNextSequence added in v2.7.0 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) GetNextSequence(ctx context.Context, address ADDR) (seq SEQ, err error)

Used to get the next usable sequence for a transaction

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) HealthReport 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) HealthReport() map[string]error

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) IncrementNextSequence added in v2.7.0 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) IncrementNextSequence(address ADDR, seq SEQ)

Used to increment the sequence in the mapping to have the next usable one available for the next transaction

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Name 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Name() string

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) ProcessUnstartedTxs 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) ProcessUnstartedTxs(ctx context.Context, addr ADDR) (retryable bool, err error)

ProcessUnstartedTxs picks up and handles all txes in the queue revive:disable:error-return

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) SetNextSequence added in v2.7.0 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) SetNextSequence(address ADDR, seq SEQ)

Used to set the next sequence explicitly to a certain value

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) SetResumeCallback 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) SetResumeCallback(callback ResumeCallback)

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Start 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Start(_ context.Context) error

Start starts Broadcaster service. The provided context can be used to terminate Start sequence.

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) SyncSequence 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) SyncSequence(ctx context.Context, addr ADDR)

syncSequence tries to sync the key sequence, retrying indefinitely until success or stop signal is sent

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Trigger 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Trigger(addr ADDR)

Trigger forces the monitor for a particular address to recheck for new txes Logs error and does nothing if address was not registered on startup

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) XXXTestCloseInternal 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) XXXTestCloseInternal() error

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) XXXTestDisableUnstartedTxAutoProcessing 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) XXXTestDisableUnstartedTxAutoProcessing()

func (*Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) XXXTestStartInternal 

func (eb *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) XXXTestStartInternal() error

type Confirmer 

type Confirmer[
	CHAIN_ID types.ID,
	HEAD types.Head[BLOCK_HASH],
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ types.Sequence,
	FEE feetypes.Fee,
] struct {
	utils.StartStopOnce

	txmgrtypes.TxAttemptBuilder[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]
	// contains filtered or unexported fields
}

Confirmer is a broad service which performs four different tasks in sequence on every new longest chain Step 1: Mark that all currently pending transaction attempts were broadcast before this block Step 2: Check pending transactions for receipts Step 3: See if any transactions have exceeded the gas bumping block threshold and, if so, bump them Step 4: Check confirmed transactions to make sure they are still in the longest chain (reorg protection)

func NewConfirmer 

func NewConfirmer[
	CHAIN_ID types.ID,
	HEAD types.Head[BLOCK_HASH],
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ types.Sequence,
	FEE feetypes.Fee,
](
	txStore txmgrtypes.TxStore[ADDR, CHAIN_ID, TX_HASH, BLOCK_HASH, R, SEQ, FEE],
	client txmgrtypes.TxmClient[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE],
	chainConfig txmgrtypes.ConfirmerChainConfig,
	feeConfig txmgrtypes.ConfirmerFeeConfig,
	txConfig txmgrtypes.ConfirmerTransactionsConfig,
	dbConfig txmgrtypes.ConfirmerDatabaseConfig,
	keystore txmgrtypes.KeyStore[ADDR, CHAIN_ID, SEQ],
	txAttemptBuilder txmgrtypes.TxAttemptBuilder[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE],
	lggr logger.Logger,
	isReceiptNil func(R) bool,
) *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) CheckConfirmedMissingReceipt 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) CheckConfirmedMissingReceipt(ctx context.Context) (err error)

CheckConfirmedMissingReceipt will attempt to re-send any transaction in the state of "confirmed_missing_receipt". If we get back any type of senderror other than "sequence too low" it means that this transaction isn't actually confirmed and needs to be put back into "unconfirmed" state, so that it can enter the gas bumping cycle. This is necessary in rare cases (e.g. Polygon) where network conditions are extremely hostile.

For example, assume the following scenario:

0. We are connected to multiple primary nodes via load balancer 1. We send a transaction, it is confirmed and, we get a receipt 2. A new head comes in from RPC node 1 indicating that this transaction was re-org'd, so we put it back into unconfirmed state 3. We re-send that transaction to a RPC node 2 **which hasn't caught up to this re-org yet** 4. RPC node 2 still has an old view of the chain, so it returns us "sequence too low" indicating "no problem this transaction is already mined" 5. Now the transaction is marked "confirmed_missing_receipt" but the latest chain does not actually include it 6. Now we are reliant on the Resender to propagate it, and this transaction will not be gas bumped, so in the event of gas spikes it could languish or even be evicted from the mempool and hold up the queue 7. Even if/when RPC node 2 catches up, the transaction is still stuck in state "confirmed_missing_receipt"

This scenario might sound unlikely but has been observed to happen multiple times in the wild on Polygon.

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) CheckForReceipts 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) CheckForReceipts(ctx context.Context, blockNum int64) error

CheckForReceipts finds attempts that are still pending and checks to see if a receipt is present for the given block number

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Close 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Close() error

Close is a comment to appease the linter

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) EnsureConfirmedTransactionsInLongestChain 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) EnsureConfirmedTransactionsInLongestChain(ctx context.Context, head types.Head[BLOCK_HASH]) error

EnsureConfirmedTransactionsInLongestChain finds all confirmed txes up to the depth of the given chain and ensures that every one has a receipt with a block hash that is in the given chain.

If any of the confirmed transactions does not have a receipt in the chain, it has been re-org'd out and will be rebroadcast.

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) FindTxsRequiringRebroadcast 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) FindTxsRequiringRebroadcast(ctx context.Context, lggr logger.Logger, address ADDR, blockNum, gasBumpThreshold, bumpDepth int64, maxInFlightTransactions uint32, chainID CHAIN_ID) (etxs []*txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE], err error)

FindTxsRequiringRebroadcast returns attempts that hit insufficient native tokens, and attempts that need bumping, in sequence ASC order

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) ForceRebroadcast 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) ForceRebroadcast(seqs []SEQ, fee FEE, address ADDR, overrideGasLimit uint32) error

ForceRebroadcast sends a transaction for every sequence in the given sequence range at the given gas price. If an tx exists for this sequence, we re-send the existing tx with the supplied parameters. If an tx doesn't exist for this sequence, we send a zero transaction. This operates completely orthogonal to the normal Confirmer and can result in untracked attempts! Only for emergency usage. This is in case of some unforeseen scenario where the node is refusing to release the lock. KISS.

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) HealthReport 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) HealthReport() map[string]error

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Name 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Name() string

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) ProcessHead 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) ProcessHead(ctx context.Context, head types.Head[BLOCK_HASH]) error

ProcessHead takes all required transactions for the confirmer on a new head

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) RebroadcastWhereNecessary 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) RebroadcastWhereNecessary(ctx context.Context, blockHeight int64) error

RebroadcastWhereNecessary bumps gas or resends transactions that were previously out-of-funds

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) ResumePendingTaskRuns 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) ResumePendingTaskRuns(ctx context.Context, head types.Head[BLOCK_HASH]) error

ResumePendingTaskRuns issues callbacks to task runs that are pending waiting for receipts

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) SetResumeCallback 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) SetResumeCallback(callback ResumeCallback)

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Start 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Start(_ context.Context) error

Start is a comment to appease the linter

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) XXXTestCloseInternal 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) XXXTestCloseInternal() error

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) XXXTestSetClient 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) XXXTestSetClient(client txmgrtypes.TxmClient[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE])

func (*Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) XXXTestStartInternal 

func (ec *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) XXXTestStartInternal() error

type DropOldestStrategy 

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

DropOldestStrategy will send the newest N transactions, older ones will be removed from the queue

func NewDropOldestStrategy 

func NewDropOldestStrategy(subject uuid.UUID, queueSize uint32, queryTimeout time.Duration) DropOldestStrategy

NewDropOldestStrategy creates a new TxStrategy that drops the oldest transactions after the queue size is exceeded.

func (DropOldestStrategy) PruneQueue 

func (s DropOldestStrategy) PruneQueue(ctx context.Context, pruneService txmgrtypes.UnstartedTxQueuePruner) (n int64, err error)

func (DropOldestStrategy) Subject 

func (s DropOldestStrategy) Subject() uuid.NullUUID

type NullTxManager 

type NullTxManager[
	CHAIN_ID types.ID,
	HEAD types.Head[BLOCK_HASH],
	ADDR types.Hashable,
	TX_HASH, BLOCK_HASH types.Hashable,
	SEQ types.Sequence,
	FEE feetypes.Fee,
] struct {
	ErrMsg string
}

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Close 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Close() error

Close does noop for NullTxManager.

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) CreateTransaction 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) CreateTransaction(ctx context.Context, txRequest txmgrtypes.TxRequest[ADDR, TX_HASH]) (etx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE], err error)

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) GetForwarderForEOA 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) GetForwarderForEOA(addr ADDR) (fwdr ADDR, err error)

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) HealthReport 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) HealthReport() map[string]error

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Name 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Name() string

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) OnNewLongestChain 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) OnNewLongestChain(context.Context, HEAD)

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Ready 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Ready() error

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) RegisterResumeCallback 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) RegisterResumeCallback(fn ResumeCallback)

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Reset 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Reset(addr ADDR, abandon bool) error

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) SendNativeToken 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) SendNativeToken(ctx context.Context, chainID CHAIN_ID, from, to ADDR, value big.Int, gasLimit uint32) (etx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE], err error)

SendNativeToken does nothing, null functionality

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Start 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Start(context.Context) error

Start does noop for NullTxManager.

func (*NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Trigger 

func (n *NullTxManager[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Trigger(ADDR)

Trigger does noop for NullTxManager.

type ProcessUnstartedTxs 

type ProcessUnstartedTxs[ADDR types.Hashable] func(ctx context.Context, fromAddress ADDR) (retryable bool, err error)

type Reaper 

type Reaper[CHAIN_ID types.ID] struct {
	// contains filtered or unexported fields
}

Reaper handles periodic database cleanup for Txm

func NewReaper 

func NewReaper[CHAIN_ID types.ID](lggr logger.Logger, store txmgrtypes.TxHistoryReaper[CHAIN_ID], config txmgrtypes.ReaperChainConfig, txConfig txmgrtypes.ReaperTransactionsConfig, chainID CHAIN_ID) *Reaper[CHAIN_ID]

NewReaper instantiates a new reaper object

func (*Reaper[CHAIN_ID]) ReapTxes 

func (r *Reaper[CHAIN_ID]) ReapTxes(headNum int64) error

ReapTxes deletes old txes

func (*Reaper[CHAIN_ID]) SetLatestBlockNum 

func (r *Reaper[CHAIN_ID]) SetLatestBlockNum(latestBlockNum int64)

SetLatestBlockNum should be called on every new highest block number

func (*Reaper[CHAIN_ID]) Start 

func (r *Reaper[CHAIN_ID]) Start()

Start the reaper. Should only be called once.

func (*Reaper[CHAIN_ID]) Stop 

func (r *Reaper[CHAIN_ID]) Stop()

Stop the reaper. Should only be called once.

type Resender 

type Resender[
	CHAIN_ID types.ID,
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	SEQ types.Sequence,
	FEE feetypes.Fee,
] struct {
	// contains filtered or unexported fields
}

Resender periodically picks up transactions that have been languishing unconfirmed for a configured amount of time without being sent, and sends their highest priced attempt again. This helps to defend against geth/parity silently dropping txes, or txes being ejected from the mempool.

Previously we relied on the bumper to do this for us implicitly but there can occasionally be problems with this (e.g. abnormally long block times, or if gas bumping is disabled)

func NewResender 

func NewResender[
	CHAIN_ID types.ID,
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	SEQ types.Sequence,
	FEE feetypes.Fee,
](
	lggr logger.Logger,
	txStore txmgrtypes.TransactionStore[ADDR, CHAIN_ID, TX_HASH, BLOCK_HASH, SEQ, FEE],
	client txmgrtypes.TransactionClient[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE],
	ks txmgrtypes.KeyStore[ADDR, CHAIN_ID, SEQ],
	pollInterval time.Duration,
	config txmgrtypes.ResenderChainConfig,
	txConfig txmgrtypes.ResenderTransactionsConfig,
) *Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]

func (*Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Start 

func (er *Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Start()

Start is a comment which satisfies the linter

func (*Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Stop 

func (er *Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) Stop()

Stop is a comment which satisfies the linter

func (*Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) XXXTestResendUnconfirmed 

func (er *Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) XXXTestResendUnconfirmed() error

type ResumeCallback 

type ResumeCallback func(id uuid.UUID, result interface{}, err error) error

ResumeCallback is assumed to be idempotent

type SendEveryStrategy 

type SendEveryStrategy struct{}

SendEveryStrategy will always send the tx

func (SendEveryStrategy) PruneQueue 

func (SendEveryStrategy) PruneQueue(ctx context.Context, pruneService txmgrtypes.UnstartedTxQueuePruner) (int64, error)

func (SendEveryStrategy) Subject 

func (SendEveryStrategy) Subject() uuid.NullUUID

type SequenceSyncer 

type SequenceSyncer[ADDR types.Hashable, TX_HASH types.Hashable, BLOCK_HASH types.Hashable, SEQ types.Sequence] interface {
	Sync(ctx context.Context, addr ADDR, localSequence SEQ) (SEQ, error)
}

type TransmitChecker 

type TransmitChecker[
	CHAIN_ID types.ID,
	ADDR types.Hashable,
	TX_HASH, BLOCK_HASH types.Hashable,
	SEQ types.Sequence,
	FEE feetypes.Fee,
] interface {

	// Check the given transaction. If the transaction should not be sent, an error indicating why
	// is returned. Errors should only be returned if the checker can confirm that a transaction
	// should not be sent, other errors (for example connection or other unexpected errors) should
	// be logged and swallowed.
	Check(ctx context.Context, l logger.Logger, tx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE], a txmgrtypes.TxAttempt[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE]) error
}

TransmitChecker determines whether a transaction should be submitted on-chain.

type TransmitCheckerFactory 

type TransmitCheckerFactory[
	CHAIN_ID types.ID,
	ADDR types.Hashable,
	TX_HASH, BLOCK_HASH types.Hashable,
	SEQ types.Sequence,
	FEE feetypes.Fee,
] interface {
	// BuildChecker builds a new TransmitChecker based on the given spec.
	BuildChecker(spec txmgrtypes.TransmitCheckerSpec[ADDR]) (TransmitChecker[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE], error)
}

TransmitCheckerFactory creates a transmit checker based on a spec.

type TxManager 

type TxManager[
	CHAIN_ID types.ID,
	HEAD types.Head[BLOCK_HASH],
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	SEQ types.Sequence,
	FEE feetypes.Fee,
] interface {
	types.HeadTrackable[HEAD, BLOCK_HASH]
	services.Service
	Trigger(addr ADDR)
	CreateTransaction(ctx context.Context, txRequest txmgrtypes.TxRequest[ADDR, TX_HASH]) (etx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE], err error)
	GetForwarderForEOA(eoa ADDR) (forwarder ADDR, err error)
	RegisterResumeCallback(fn ResumeCallback)
	SendNativeToken(ctx context.Context, chainID CHAIN_ID, from, to ADDR, value big.Int, gasLimit uint32) (etx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE], err error)
	Reset(addr ADDR, abandon bool) error
}

TxManager is the main component of the transaction manager. It is also the interface to external callers.

type Txm 

type Txm[
	CHAIN_ID types.ID,
	HEAD types.Head[BLOCK_HASH],
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ types.Sequence,
	FEE feetypes.Fee,
] struct {
	utils.StartStopOnce
	// contains filtered or unexported fields
}

func NewTxm 

func NewTxm[
	CHAIN_ID types.ID,
	HEAD types.Head[BLOCK_HASH],
	ADDR types.Hashable,
	TX_HASH types.Hashable,
	BLOCK_HASH types.Hashable,
	R txmgrtypes.ChainReceipt[TX_HASH, BLOCK_HASH],
	SEQ types.Sequence,
	FEE feetypes.Fee,
](
	chainId CHAIN_ID,
	cfg txmgrtypes.TransactionManagerChainConfig,
	txCfg txmgrtypes.TransactionManagerTransactionsConfig,
	keyStore txmgrtypes.KeyStore[ADDR, CHAIN_ID, SEQ],
	lggr logger.Logger,
	checkerFactory TransmitCheckerFactory[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE],
	fwdMgr txmgrtypes.ForwarderManager[ADDR],
	txAttemptBuilder txmgrtypes.TxAttemptBuilder[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE],
	txStore txmgrtypes.TxStore[ADDR, CHAIN_ID, TX_HASH, BLOCK_HASH, R, SEQ, FEE],
	sequenceSyncer SequenceSyncer[ADDR, TX_HASH, BLOCK_HASH, SEQ],
	broadcaster *Broadcaster[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE],
	confirmer *Confirmer[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE],
	resender *Resender[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE],
) *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]

NewTxm creates a new Txm with the given configuration.

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Close 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Close() (merr error)

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) CreateTransaction 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) CreateTransaction(ctx context.Context, txRequest txmgrtypes.TxRequest[ADDR, TX_HASH]) (tx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE], err error)

CreateTransaction inserts a new transaction

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) GetForwarderForEOA 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) GetForwarderForEOA(eoa ADDR) (forwarder ADDR, err error)

Calls forwarderMgr to get a proper forwarder for a given EOA.

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) HealthReport 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) HealthReport() map[string]error

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Name 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Name() string

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) OnNewLongestChain 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) OnNewLongestChain(ctx context.Context, head HEAD)

OnNewLongestChain conforms to HeadTrackable

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) RegisterResumeCallback 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) RegisterResumeCallback(fn ResumeCallback)

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Reset 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Reset(addr ADDR, abandon bool) (err error)

Reset stops Broadcaster/Confirmer, executes callback, then starts them again

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) SendNativeToken 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) SendNativeToken(ctx context.Context, chainID CHAIN_ID, from, to ADDR, value big.Int, gasLimit uint32) (etx txmgrtypes.Tx[CHAIN_ID, ADDR, TX_HASH, BLOCK_HASH, SEQ, FEE], err error)

SendNativeToken creates a transaction that transfers the given value of native tokens

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Start 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Start(ctx context.Context) (merr error)

Start starts Txm service. The provided context can be used to terminate Start sequence.

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Trigger 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) Trigger(addr ADDR)

Trigger forces the Broadcaster to check early for the given address

func (*Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) XXXTestAbandon 

func (b *Txm[CHAIN_ID, HEAD, ADDR, TX_HASH, BLOCK_HASH, R, SEQ, FEE]) XXXTestAbandon(addr ADDR) (err error)

Source Files

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