Documentation
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Index ¶
- Variables
- func BumpGas(config orm.ConfigReader, originalGasPrice *big.Int) (*big.Int, error)
- func FindEthTxsRequiringNewAttempt(db *gorm.DB, address gethCommon.Address, ...) (etxs []models.EthTx, err error)
- func GetNextNonce(db *gorm.DB, address gethCommon.Address) (*int64, error)
- func IncrementNextNonce(db *gorm.DB, address gethCommon.Address, currentNonce int64) error
- func NewEthConfirmer(store *store.Store, config orm.ConfigReader) *ethConfirmer
- func SendEther(s *strpkg.Store, from, to gethCommon.Address, value assets.Eth) (etx models.EthTx, err error)
- type EthBroadcaster
Constants ¶
This section is empty.
Variables ¶
var ( // ErrCouldNotGetReceipt is the error string we save if we reach our finality depth for a confirmed transaction without ever getting a receipt // This most likely happened because an external wallet used the account for this nonce ErrCouldNotGetReceipt = "could not get receipt" )
Functions ¶
func BumpGas ¶
BumpGas computes the next gas price to attempt as the largest of: - A configured percentage bump (ETH_GAS_BUMP_PERCENT) on top of the baseline price. - A configured fixed amount of Wei (ETH_GAS_PRICE_WEI) on top of the baseline price. The baseline price is the maximum of the previous gas price attempt and the node's current gas price.
func FindEthTxsRequiringNewAttempt ¶
func FindEthTxsRequiringNewAttempt(db *gorm.DB, address gethCommon.Address, blockNum, gasBumpThreshold, depth int64) (etxs []models.EthTx, err error)
FindEthTxsRequiringNewAttempt returns transactions that have all attempts which are unconfirmed for at least gasBumpThreshold blocks, limited by limit pending transactions
func GetNextNonce ¶
GetNextNonce returns keys.next_nonce for the given address
func IncrementNextNonce ¶
IncrementNextNonce increments keys.next_nonce by 1
func NewEthConfirmer ¶
func NewEthConfirmer(store *store.Store, config orm.ConfigReader) *ethConfirmer
Types ¶
type EthBroadcaster ¶
type EthBroadcaster interface {
Start() error
Stop() error
Trigger()
ProcessUnstartedEthTxs(models.Key) error
}
EthBroadcaster monitors eth_txes for transactions that need to be broadcast, assigns nonces and ensures that at least one eth 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, eth nodes going offline etc. Responsibility for ensuring eventual inclusion into the chain falls on the shoulders of the ethConfirmer.
What ethBroadcaster does guarantee is: - a monotonic series of increasing nonces for eth_txes that can all eventually be confirmed if you retry enough times - transition of eth_txes out of unstarted into either fatal_error or unconfirmed - existence of a saved eth_tx_attempt
func NewEthBroadcaster ¶
func NewEthBroadcaster(store *store.Store, config orm.ConfigReader, eventBroadcaster postgres.EventBroadcaster) EthBroadcaster
NewEthBroadcaster returns a new concrete ethBroadcaster
Source Files