txcache

package
v1.0.5 Latest Latest
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 Go to latest Published: Dec 9, 2022 License: GPL-3.0 Imports: 18 Imported by: 0

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Constants

This section is empty.

Variables

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Functions

This section is empty.

Types

type ConfigDestinationMe 

type ConfigDestinationMe struct {
	Name                        string
	NumChunks                   uint32
	MaxNumItems                 uint32
	MaxNumBytes                 uint32
	NumItemsToPreemptivelyEvict uint32
}

ConfigDestinationMe holds cache configuration

func (*ConfigDestinationMe) String 

func (config *ConfigDestinationMe) String() string

String returns a readable representation of the object

type ConfigSourceMe 

type ConfigSourceMe struct {
	Name                          string
	NumChunks                     uint32
	EvictionEnabled               bool
	NumBytesThreshold             uint32
	NumBytesPerSenderThreshold    uint32
	CountThreshold                uint32
	CountPerSenderThreshold       uint32
	NumSendersToPreemptivelyEvict uint32
}

ConfigSourceMe holds cache configuration

func (*ConfigSourceMe) String 

func (config *ConfigSourceMe) String() string

String returns a readable representation of the object

type CrossTxCache 

type CrossTxCache struct {
	*immunitycache.ImmunityCache
	// contains filtered or unexported fields
}

CrossTxCache holds cross-shard transactions (where destination == me)

func NewCrossTxCache 

func NewCrossTxCache(config ConfigDestinationMe) (*CrossTxCache, error)

NewCrossTxCache creates a new transactions cache

func (*CrossTxCache) AddTx 

func (cache *CrossTxCache) AddTx(tx *WrappedTransaction) (has, added bool)

AddTx adds a transaction in the cache

func (*CrossTxCache) ForEachTransaction 

func (cache *CrossTxCache) ForEachTransaction(function ForEachTransaction)

ForEachTransaction iterates over the transactions in the cache

func (*CrossTxCache) Get 

func (cache *CrossTxCache) Get(key []byte) (value interface{}, ok bool)

Get returns the unwrapped payload of a TransactionWrapper Implemented for compatibility reasons (see txPoolsCleaner.go).

func (*CrossTxCache) GetByTxHash 

func (cache *CrossTxCache) GetByTxHash(txHash []byte) (*WrappedTransaction, bool)

GetByTxHash gets the transaction by hash

func (*CrossTxCache) GetTransactionsPoolForSender 

func (cache *CrossTxCache) GetTransactionsPoolForSender(_ string) []*WrappedTransaction

GetTransactionsPoolForSender returns an empty slice, only to respect the interface CrossTxCache does not support transaction selection (not applicable, since transactions are already half-executed), thus does not handle nonces, nonce gaps etc.

func (*CrossTxCache) ImmunizeTxsAgainstEviction 

func (cache *CrossTxCache) ImmunizeTxsAgainstEviction(keys [][]byte)

ImmunizeTxsAgainstEviction marks items as non-evictable

func (*CrossTxCache) IsInterfaceNil 

func (cache *CrossTxCache) IsInterfaceNil() bool

IsInterfaceNil returns true if there is no value under the interface

func (*CrossTxCache) Peek 

func (cache *CrossTxCache) Peek(key []byte) (value interface{}, ok bool)

Peek returns the unwrapped payload of a TransactionWrapper Implemented for compatibility reasons (see transactions.go, common.go).

func (*CrossTxCache) RemoveTxByHash 

func (cache *CrossTxCache) RemoveTxByHash(txHash []byte) bool

RemoveTxByHash removes tx by hash

type DisabledCache 

type DisabledCache struct {
}

DisabledCache represents a disabled cache

func NewDisabledCache 

func NewDisabledCache() *DisabledCache

NewDisabledCache creates a new disabled cache

func (*DisabledCache) AddTx 

func (cache *DisabledCache) AddTx(_ *WrappedTransaction) (ok bool, added bool)

AddTx does nothing

func (*DisabledCache) Clear 

func (cache *DisabledCache) Clear()

Clear does nothing

func (*DisabledCache) Close 

func (cache *DisabledCache) Close() error

Close does nothing

func (*DisabledCache) Diagnose 

func (cache *DisabledCache) Diagnose(_ bool)

Diagnose does nothing

func (*DisabledCache) ForEachTransaction 

func (cache *DisabledCache) ForEachTransaction(_ ForEachTransaction)

ForEachTransaction does nothing

func (*DisabledCache) Get 

func (cache *DisabledCache) Get(_ []byte) (value interface{}, ok bool)

Get returns no transaction

func (*DisabledCache) GetByTxHash 

func (cache *DisabledCache) GetByTxHash(_ []byte) (*WrappedTransaction, bool)

GetByTxHash returns no transaction

func (*DisabledCache) GetTransactionsPoolForSender 

func (cache *DisabledCache) GetTransactionsPoolForSender(_ string) []*WrappedTransaction

GetTransactionsPoolForSender returns an empty slice

func (*DisabledCache) Has 

func (cache *DisabledCache) Has(_ []byte) bool

Has returns false

func (*DisabledCache) HasOrAdd 

func (cache *DisabledCache) HasOrAdd(_ []byte, _ interface{}, _ int) (has, added bool)

HasOrAdd returns false, does nothing

func (*DisabledCache) ImmunizeTxsAgainstEviction 

func (cache *DisabledCache) ImmunizeTxsAgainstEviction(_ [][]byte)

ImmunizeTxsAgainstEviction does nothing

func (*DisabledCache) IsInterfaceNil 

func (cache *DisabledCache) IsInterfaceNil() bool

IsInterfaceNil returns true if there is no value under the interface

func (*DisabledCache) Keys 

func (cache *DisabledCache) Keys() [][]byte

Keys returns an empty slice

func (*DisabledCache) Len 

func (cache *DisabledCache) Len() int

Len returns zero

func (*DisabledCache) MaxSize 

func (cache *DisabledCache) MaxSize() int

MaxSize returns zero

func (*DisabledCache) NotifyAccountNonce 

func (cache *DisabledCache) NotifyAccountNonce(_ []byte, _ uint64)

NotifyAccountNonce does nothing

func (*DisabledCache) NumBytes 

func (cache *DisabledCache) NumBytes() int

NumBytes returns zero

func (*DisabledCache) Peek 

func (cache *DisabledCache) Peek(_ []byte) (value interface{}, ok bool)

Peek returns no transaction

func (*DisabledCache) Put 

func (cache *DisabledCache) Put(_ []byte, _ interface{}, _ int) (evicted bool)

Put does nothing

func (*DisabledCache) RegisterHandler 

func (cache *DisabledCache) RegisterHandler(func(key []byte, value interface{}), string)

RegisterHandler does nothing

func (*DisabledCache) Remove 

func (cache *DisabledCache) Remove(_ []byte)

Remove does nothing

func (*DisabledCache) RemoveTxByHash 

func (cache *DisabledCache) RemoveTxByHash(_ []byte) bool

RemoveTxByHash does nothing

func (*DisabledCache) SelectTransactionsWithBandwidth 

func (cache *DisabledCache) SelectTransactionsWithBandwidth(_ int, _ int, _ uint64) []*WrappedTransaction

SelectTransactionsWithBandwidth returns an empty slice

func (*DisabledCache) SizeInBytesContained 

func (cache *DisabledCache) SizeInBytesContained() uint64

SizeInBytesContained returns 0

func (*DisabledCache) UnRegisterHandler 

func (cache *DisabledCache) UnRegisterHandler(string)

UnRegisterHandler does nothing

type ForEachTransaction 

type ForEachTransaction func(txHash []byte, value *WrappedTransaction)

ForEachTransaction is an iterator callback

type TxCache 

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

TxCache represents a cache-like structure (it has a fixed capacity and implements an eviction mechanism) for holding transactions

func NewTxCache 

func NewTxCache(config ConfigSourceMe, txGasHandler TxGasHandler) (*TxCache, error)

NewTxCache creates a new transaction cache

func (*TxCache) AddTx 

func (cache *TxCache) AddTx(tx *WrappedTransaction) (ok bool, added bool)

AddTx adds a transaction in the cache Eviction happens if maximum capacity is reached

func (*TxCache) Clear 

func (cache *TxCache) Clear()

Clear clears the cache

func (*TxCache) Close 

func (cache *TxCache) Close() error

Close does nothing for this cacher implementation

func (*TxCache) CountSenders 

func (cache *TxCache) CountSenders() uint64

CountSenders gets the number of senders in the cache

func (*TxCache) CountTx 

func (cache *TxCache) CountTx() uint64

CountTx gets the number of transactions in the cache

func (*TxCache) Diagnose 

func (cache *TxCache) Diagnose(deep bool)

Diagnose checks the state of the cache for inconsistencies and displays a summary

func (*TxCache) ForEachTransaction 

func (cache *TxCache) ForEachTransaction(function ForEachTransaction)

ForEachTransaction iterates over the transactions in the cache

func (*TxCache) Get 

func (cache *TxCache) Get(key []byte) (value interface{}, ok bool)

Get gets a transaction (unwrapped) by hash Implemented for compatibility reasons (see txPoolsCleaner.go).

func (*TxCache) GetByTxHash 

func (cache *TxCache) GetByTxHash(txHash []byte) (*WrappedTransaction, bool)

GetByTxHash gets the transaction by hash

func (*TxCache) GetTransactionsPoolForSender 

func (cache *TxCache) GetTransactionsPoolForSender(sender string) []*WrappedTransaction

GetTransactionsPoolForSender returns the list of transaction hashes for the sender

func (*TxCache) Has 

func (cache *TxCache) Has(key []byte) bool

Has checks if a transaction exists

func (*TxCache) HasOrAdd 

func (cache *TxCache) HasOrAdd(_ []byte, _ interface{}, _ int) (has, added bool)

HasOrAdd is not implemented

func (*TxCache) ImmunizeTxsAgainstEviction 

func (cache *TxCache) ImmunizeTxsAgainstEviction(_ [][]byte)

ImmunizeTxsAgainstEviction does nothing for this type of cache

func (*TxCache) IsInterfaceNil 

func (cache *TxCache) IsInterfaceNil() bool

IsInterfaceNil returns true if there is no value under the interface

func (*TxCache) Keys 

func (cache *TxCache) Keys() [][]byte

Keys returns the tx hashes in the cache

func (*TxCache) Len 

func (cache *TxCache) Len() int

Len is an alias for CountTx

func (*TxCache) MaxSize 

func (cache *TxCache) MaxSize() int

MaxSize is not implemented

func (*TxCache) NotifyAccountNonce 

func (cache *TxCache) NotifyAccountNonce(accountKey []byte, nonce uint64)

NotifyAccountNonce should be called by external components (such as interceptors and transactions processor) in order to inform the cache about initial nonce gap phenomena

func (*TxCache) NumBytes 

func (cache *TxCache) NumBytes() int

NumBytes gets the approximate number of bytes stored in the cache

func (*TxCache) Peek 

func (cache *TxCache) Peek(key []byte) (value interface{}, ok bool)

Peek gets a transaction (unwrapped) by hash Implemented for compatibility reasons (see transactions.go, common.go).

func (*TxCache) Put 

func (cache *TxCache) Put(_ []byte, _ interface{}, _ int) (evicted bool)

Put is not implemented

func (*TxCache) RegisterHandler 

func (cache *TxCache) RegisterHandler(func(key []byte, value interface{}), string)

RegisterHandler is not implemented

func (*TxCache) Remove 

func (cache *TxCache) Remove(key []byte)

Remove removes tx by hash

func (*TxCache) RemoveTxByHash 

func (cache *TxCache) RemoveTxByHash(txHash []byte) bool

RemoveTxByHash removes tx by hash

func (*TxCache) SelectTransactionsWithBandwidth 

func (cache *TxCache) SelectTransactionsWithBandwidth(numRequested int, batchSizePerSender int, bandwidthPerSender uint64) []*WrappedTransaction

SelectTransactionsWithBandwidth selects a reasonably fair list of transactions to be included in the next miniblock It returns at most "numRequested" transactions Each sender gets the chance to give at least bandwidthPerSender gas worth of transactions, unless "numRequested" limit is reached before iterating over all senders

func (*TxCache) SizeInBytesContained 

func (cache *TxCache) SizeInBytesContained() uint64

SizeInBytesContained returns 0

func (*TxCache) UnRegisterHandler 

func (cache *TxCache) UnRegisterHandler(string)

UnRegisterHandler is not implemented

type TxGasHandler 

type TxGasHandler interface {
	SplitTxGasInCategories(tx data.TransactionWithFeeHandler) (uint64, uint64)
	GasPriceForProcessing(tx data.TransactionWithFeeHandler) uint64
	GasPriceForMove(tx data.TransactionWithFeeHandler) uint64
	MinGasPrice() uint64
	MinGasLimit() uint64
	MinGasPriceForProcessing() uint64
	IsInterfaceNil() bool
}

TxGasHandler handles a transaction gas and gas cost

type WrappedTransaction 

type WrappedTransaction struct {
	Tx                   data.TransactionHandler
	TxHash               []byte
	SenderShardID        uint32
	ReceiverShardID      uint32
	Size                 int64
	TxFeeScoreNormalized uint64
}

WrappedTransaction contains a transaction, its hash and extra information

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