Help us shape the future of Go! Take the 2026 Go Developer Survey

utils

package
v0.14.0 Latest Latest
Warning

This package is not in the latest version of its module.

Go to latest
Published: Feb 3, 2021 License: AGPL-3.0 Imports: 7 Imported by: 1

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func AppendLongData

func AppendLongData(input []byte, data []byte) []byte

AppendLongData appends data shorter than 32MB

func AppendShortData

func AppendShortData(input []byte, data []byte) []byte

AppendShortData appends data shorter than 16kB

func AppendUint8

func AppendUint8(input []byte, value uint8) []byte

AppendUint8 appends the value byte to the input slice

func AppendUint16

func AppendUint16(input []byte, value uint16) []byte

AppendUint16 appends the value bytes to the input slice (big endian)

func AppendUint32

func AppendUint32(input []byte, value uint32) []byte

AppendUint32 appends the value bytes to the input slice (big endian)

func AppendUint64

func AppendUint64(input []byte, value uint64) []byte

AppendUint64 appends the value bytes to the input slice (big endian)

func IsBitSet

func IsBitSet(b []byte, idx int) (bool, error)

IsBitSet returns if the bit at index `idx` in the byte array `b` is set to 1 (big endian) TODO: remove error return to improve performance

func KeyPartFixture

func KeyPartFixture(typ uint16, val string) ledger.KeyPart

KeyPartFixture returns a key part fixture

func LightPayload

func LightPayload(key uint16, value uint16) *ledger.Payload

LightPayload returns a payload with 2 byte key and 2 byte value

func LightPayload8

func LightPayload8(key uint8, value uint8) *ledger.Payload

LightPayload8 returns a payload with 1 byte key and 1 byte value

func MaxUint16

func MaxUint16(a, b uint16) uint16

MaxUint16 returns the max value of two uint16

func OneBytePath

func OneBytePath(inp uint8) ledger.Path

OneBytePath returns a path (1 byte) given a uint8

func QueryFixture

func QueryFixture() *ledger.Query

QueryFixture returns a query fixture

func RandomPaths

func RandomPaths(n int, byteSize int) []ledger.Path

RandomPaths generates n random (no repetition) fixed sized (byteSize) paths

func RandomPathsRandLen

func RandomPathsRandLen(maxN int, byteSize int) []ledger.Path

RandomPathsRandLen generate m random paths (size: byteSize), the number of paths, m, is also randomly selected from the range [1, maxN]

func RandomPayload

func RandomPayload(minByteSize int, maxByteSize int) *ledger.Payload

RandomPayload returns a random payload

func RandomPayloads

func RandomPayloads(n int, minByteSize int, maxByteSize int) []*ledger.Payload

RandomPayloads returns n random payloads

func RandomUniqueKeys

func RandomUniqueKeys(n, m, minByteSize, maxByteSize int) []ledger.Key

RandomUniqueKeys generates n random keys (each with m random key parts)

func RandomUniqueKeysRandomN

func RandomUniqueKeysRandomN(maxN, m, minByteSize, maxByteSize int) []ledger.Key

RandomUniqueKeysRandomN generate n (0<n<maxN) random keys (each m random key part),

func RandomValues

func RandomValues(n int, minByteSize, maxByteSize int) []ledger.Value

RandomValues returns n random values with variable sizes (minByteSize <= size < maxByteSize)

func ReadFromBuffer

func ReadFromBuffer(reader io.Reader, length int) ([]byte, error)

ReadFromBuffer reads 'length' bytes from the input

func ReadLongData

func ReadLongData(input []byte) (data []byte, rest []byte, err error)

ReadLongData read data shorter than 32MB and return the rest of bytes

func ReadLongDataFromReader

func ReadLongDataFromReader(reader io.Reader) ([]byte, error)

ReadLongDataFromReader reads data shorter than 16kB from reader

func ReadShortData

func ReadShortData(input []byte) (data []byte, rest []byte, err error)

ReadShortData read data shorter than 16kB and return the rest of bytes

func ReadShortDataFromReader

func ReadShortDataFromReader(reader io.Reader) ([]byte, error)

ReadShortDataFromReader reads data shorter than 16kB from reader

func ReadSlice

func ReadSlice(input []byte, size int) (value []byte, rest []byte, err error)

ReadSlice reads `size` bytes from the input

func ReadUint8

func ReadUint8(input []byte) (value uint8, rest []byte, err error)

ReadUint8 reads a uint8 from the input and returns the rest

func ReadUint16

func ReadUint16(input []byte) (value uint16, rest []byte, err error)

ReadUint16 reads a uint16 from the input and returns the rest

func ReadUint32

func ReadUint32(input []byte) (value uint32, rest []byte, err error)

ReadUint32 reads a uint32 from the input and returns the rest

func ReadUint64

func ReadUint64(input []byte) (value uint64, rest []byte, err error)

ReadUint64 reads a uint64 from the input and returns the rest

func RootHashFixture

func RootHashFixture() ledger.RootHash

RootHashFixture returns a root hash fixture

func SetBit

func SetBit(b []byte, i int) error

SetBit sets the bit at position i in the byte array b to 1 TODO: remove error return to improve performance

func SplitByPath

func SplitByPath(paths []ledger.Path, payloads []ledger.Payload, bitIndex int) ([]ledger.Path, []ledger.Payload, []ledger.Path, []ledger.Payload, error)

SplitByPath splits an slice of payloads based on the value of bit (bitIndex) of paths TODO: remove error return

func SplitSortedPaths

func SplitSortedPaths(paths []ledger.Path, bitIndex int) ([]ledger.Path, []ledger.Path, error)

SplitSortedPaths splits a set of ordered paths based on the value of bit (bitIndex)

func SplitTrieProofsByPath

func SplitTrieProofsByPath(paths []ledger.Path, proofs []*ledger.TrieProof, bitIndex int) ([]ledger.Path, []*ledger.TrieProof, []ledger.Path, []*ledger.TrieProof, error)

SplitTrieProofsByPath splits a set of unordered path and proof pairs based on the value of bit (bitIndex) of path

func TrieBatchProofFixture

func TrieBatchProofFixture() (*ledger.TrieBatchProof, ledger.State)

TrieBatchProofFixture returns a trie batch proof fixture

func TrieProofFixture

func TrieProofFixture() (*ledger.TrieProof, ledger.State)

TrieProofFixture returns a trie proof fixture

func TwoBytesPath

func TwoBytesPath(inp uint16) ledger.Path

TwoBytesPath returns a path (2 bytes) given a uint16

func Uint16ToBinary

func Uint16ToBinary(integer uint16) []byte

Uint16ToBinary converst a uint16 to a byte slice (big endian)

func Uint64ToBinary

func Uint64ToBinary(integer uint64) []byte

Uint64ToBinary converst a uint64 to a byte slice (big endian)

func UpdateFixture

func UpdateFixture() *ledger.Update

UpdateFixture returns an update fixture

Types

This section is empty.

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL