batching

package
v1.7.4 Latest Latest
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 Go to latest Published: Apr 23, 2024 License: MIT Imports: 14 Imported by: 3

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Index

Constants

This section is empty.

Variables

View Source 
var (
	ErrUnknownMethod = errors.New("unknown method")
	ErrInvalidCall   = errors.New("invalid call")
)
View Source 
var DefaultBatchSize = 100

Functions

This section is empty.

Types

type BalanceCall added in v1.7.2 

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

func NewBalanceCall added in v1.7.2 

func NewBalanceCall(addr common.Address) *BalanceCall

func (*BalanceCall) HandleResult added in v1.7.2 

func (b *BalanceCall) HandleResult(result interface{}) (*CallResult, error)

func (*BalanceCall) ToBatchElemCreator added in v1.7.2 

func (b *BalanceCall) ToBatchElemCreator() (BatchElementCreator, error)

type BatchCallContextFn 

type BatchCallContextFn func(ctx context.Context, b []rpc.BatchElem) error

type BatchElementCreator added in v1.7.2 

type BatchElementCreator func(block rpcblock.Block) (any, rpc.BatchElem)

type BoundContract 

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

func NewBoundContract 

func NewBoundContract(abi *abi.ABI, addr common.Address) *BoundContract

func (*BoundContract) Addr added in v1.7.2 

func (b *BoundContract) Addr() common.Address

func (*BoundContract) Call 

func (b *BoundContract) Call(method string, args ...interface{}) *ContractCall

func (*BoundContract) DecodeCall added in v1.5.0 

func (b *BoundContract) DecodeCall(data []byte) (string, *CallResult, error)

type Call added in v1.7.2 

type Call interface {
	ToBatchElemCreator() (BatchElementCreator, error)
	HandleResult(interface{}) (*CallResult, error)
}

type CallContextFn 

type CallContextFn func(ctx context.Context, result any, method string, args ...any) error

type CallResult 

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

func ReadArray added in v1.5.0 

func ReadArray(ctx context.Context, caller *MultiCaller, block rpcblock.Block, countCall *ContractCall, getCall func(i *big.Int) *ContractCall) ([]*CallResult, error)

ReadArray uses batch calls to load all entries from an array. countCall is used to retrieve the current array length, then getCall is used to create calls for each element which are sent in a batch call. The returned *CallResult slice, contains a result for each entry in the array, in the same order as in the contract.

func (*CallResult) GetAddress 

func (c *CallResult) GetAddress(i int) common.Address

func (*CallResult) GetBigInt 

func (c *CallResult) GetBigInt(i int) *big.Int

func (*CallResult) GetBool 

func (c *CallResult) GetBool(i int) bool

func (*CallResult) GetBytes added in v1.5.0 

func (c *CallResult) GetBytes(i int) []byte

func (*CallResult) GetBytes32 added in v1.5.0 

func (c *CallResult) GetBytes32(i int) [32]byte

func (*CallResult) GetBytes32Slice added in v1.5.0 

func (c *CallResult) GetBytes32Slice(i int) [][32]byte

func (*CallResult) GetHash 

func (c *CallResult) GetHash(i int) common.Hash

func (*CallResult) GetStruct 

func (c *CallResult) GetStruct(i int, target interface{})

func (*CallResult) GetUint32 

func (c *CallResult) GetUint32(i int) uint32

func (*CallResult) GetUint64 

func (c *CallResult) GetUint64(i int) uint64

func (*CallResult) GetUint8 

func (c *CallResult) GetUint8(i int) uint8

type ContractCall 

type ContractCall struct {
	Abi    *abi.ABI
	Addr   common.Address
	Method string
	Args   []interface{}
	From   common.Address
}

func NewContractCall 

func NewContractCall(abi *abi.ABI, addr common.Address, method string, args ...interface{}) *ContractCall

func (*ContractCall) CallMethod added in v1.7.2 

func (c *ContractCall) CallMethod() string

func (*ContractCall) CreateResult added in v1.7.2 

func (c *ContractCall) CreateResult() interface{}

func (*ContractCall) HandleResult added in v1.7.2 

func (c *ContractCall) HandleResult(result interface{}) (*CallResult, error)

func (*ContractCall) Pack 

func (c *ContractCall) Pack() ([]byte, error)

func (*ContractCall) ToBatchElemCreator added in v1.7.2 

func (c *ContractCall) ToBatchElemCreator() (BatchElementCreator, error)

func (*ContractCall) ToCallArgs 

func (c *ContractCall) ToCallArgs() (interface{}, error)

func (*ContractCall) ToTxCandidate 

func (c *ContractCall) ToTxCandidate() (txmgr.TxCandidate, error)

func (*ContractCall) Unpack 

func (c *ContractCall) Unpack(hex hexutil.Bytes) (*CallResult, error)

type EthRpc 

type EthRpc interface {
	CallContext(ctx context.Context, out interface{}, method string, args ...interface{}) error
	BatchCallContext(ctx context.Context, b []rpc.BatchElem) error
}

type IterativeBatchCall 

type IterativeBatchCall[K any, V any] struct {
	// contains filtered or unexported fields
}

IterativeBatchCall batches many RPC requests with safe and easy parallelization. Request errors are handled and re-tried, and the batch size is configurable. Executing IterativeBatchCall is as simple as calling Fetch repeatedly until it returns io.EOF.

func NewIterativeBatchCall 

func NewIterativeBatchCall[K any, V any](
	requestsKeys []K,
	makeRequest func(K) (V, rpc.BatchElem),
	getBatch BatchCallContextFn,
	getSingle CallContextFn,
	batchSize int) *IterativeBatchCall[K, V]

NewIterativeBatchCall constructs a batch call, fetching the values with the given keys, and transforms them into a verified final result.

func (*IterativeBatchCall[K, V]) Complete 

func (ibc *IterativeBatchCall[K, V]) Complete() bool

Complete indicates if the batch call is done.

func (*IterativeBatchCall[K, V]) Fetch 

func (ibc *IterativeBatchCall[K, V]) Fetch(ctx context.Context) error

Fetch fetches more of the data, and returns io.EOF when all data has been fetched. This method is safe to call concurrently; it will parallelize the fetching work. If no work is available, but the fetching is not done yet, then Fetch will block until the next thing can be fetched, or until the context expires.

func (*IterativeBatchCall[K, V]) Reset 

func (ibc *IterativeBatchCall[K, V]) Reset()

Reset will clear the batch call, to start fetching all contents from scratch.

func (*IterativeBatchCall[K, V]) Result 

func (ibc *IterativeBatchCall[K, V]) Result() ([]V, error)

Result returns the fetched values, checked and transformed to the final output type, if available. If the check fails, the IterativeBatchCall will Reset itself, to be ready for a re-attempt in fetching new data.

type MultiCaller 

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

func NewMultiCaller 

func NewMultiCaller(rpc EthRpc, batchSize int) *MultiCaller

func (*MultiCaller) BatchSize added in v1.5.1 

func (m *MultiCaller) BatchSize() int

func (*MultiCaller) Call 

func (m *MultiCaller) Call(ctx context.Context, block rpcblock.Block, calls ...Call) ([]*CallResult, error)

func (*MultiCaller) SingleCall 

func (m *MultiCaller) SingleCall(ctx context.Context, block rpcblock.Block, call Call) (*CallResult, error)

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