common

package
v1.0.1 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Dec 31, 2020 License: GPL-3.0 Imports: 32 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	EmptyString       = ""
	ZeroByte          = byte(0x00)
	DateOutputFormat  = "2006-01-02T15:04:05.999999"
	BigIntSize        = 32 // bytes
	CheckSumLen       = 4  // bytes
	AESKeySize        = 32 // bytes
	Int32Size         = 4  // bytes
	Uint32Size        = 4  // bytes
	Uint64Size        = 8  // bytes
	HashSize          = 32 // bytes
	MaxHashStringSize = HashSize * 2
	Base58Version     = 0
)

for common

View Source 
const (
	// for key size
	PrivateKeySize      = 32  // bytes
	PublicKeySize       = 32  // bytes
	BLSPublicKeySize    = 128 // bytes
	BriPublicKeySize    = 33  // bytes
	TransmissionKeySize = 32  //bytes
	ReceivingKeySize    = 32  // bytes
	PaymentAddressSize  = 64  // bytes
	// for signature size
	// it is used for both privacy and no privacy
	SigPubKeySize    = 32
	SigNoPrivacySize = 64
	SigPrivacySize   = 96
	IncPubKeyB58Size = 51
)

size data for incognito key and signature

View Source 
const (
	ExitCodeUnknow = iota
	ExitByOs
	ExitByLogging
	ExitCodeForceUpdate
)

for exit code

View Source 
const (
	TxNormalType        = "n"  // normal tx(send and receive coin)
	TxRewardType        = "s"  // reward tx
	TxReturnStakingType = "rs" //
	//TxCustomTokenType        = "t"  // token  tx with no supporting privacy
	TxCustomTokenPrivacyType = "tp" // token  tx with supporting privacy
)

For all Transaction information

View Source 
const (
	NodeModeRelay  = "relay"
	NodeModeShard  = "shard"
	NodeModeAuto   = "auto"
	NodeModeBeacon = "beacon"

	BeaconRole     = "beacon"
	ShardRole      = "shard"
	CommitteeRole  = "committee"
	ProposerRole   = "proposer"
	ValidatorRole  = "validator"
	PendingRole    = "pending"
	SyncingRole    = "syncing" //this is for shard case - when beacon tell it is committee, but its state not
	WaitingRole    = "waiting"
	MaxShardNumber = 8

	BlsConsensus    = "bls"
	BridgeConsensus = "dsa"
	IncKeyType      = "inc"
)

CONSENSUS

View Source 
const (
	BeaconChainKey = "beacon"
	ShardChainKey  = "shard"
)
View Source 
const (
	BeaconChainDataBaseID        = -1
	BeaconChainDatabaseDirectory = "beacon"
	ShardChainDatabaseDirectory  = "shard"
)
View Source 
const (
	REPLACE_IN  = 0
	REPLACE_OUT = 1
)
View Source 
const (
	//AbiJson       = `[{"inputs":[{"internalType":"address","name":"admin","type":"address"},{"internalType":"address","name":"incognitoProxyAddress","type":"address"},{"internalType":"address","name":"_prevVault","type":"address"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"claimer","type":"address"}],"name":"Claim","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"string","name":"incognitoAddress","type":"string"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"ndays","type":"uint256"}],"name":"Extend","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newVault","type":"address"}],"name":"Migrate","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address[]","name":"assets","type":"address[]"}],"name":"MoveAssets","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"pauser","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"pauser","type":"address"}],"name":"Unpaused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newIncognitoProxy","type":"address"}],"name":"UpdateIncognitoProxy","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Withdraw","type":"event"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"constant":true,"inputs":[],"name":"ETH_TOKEN","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"claim","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"string","name":"incognitoAddress","type":"string"}],"name":"deposit","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"string","name":"incognitoAddress","type":"string"}],"name":"depositERC20","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":true,"inputs":[],"name":"expire","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"n","type":"uint256"}],"name":"extend","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"getDecimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"incognito","outputs":[{"internalType":"contractIncognito","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"hash","type":"bytes32"}],"name":"isWithdrawed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"addresspayable","name":"_newVault","type":"address"}],"name":"migrate","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address[]","name":"assets","type":"address[]"}],"name":"moveAssets","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"newVault","outputs":[{"internalType":"addresspayable","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes","name":"inst","type":"bytes"}],"name":"parseBurnInst","outputs":[{"internalType":"uint8","name":"","type":"uint8"},{"internalType":"uint8","name":"","type":"uint8"},{"internalType":"address","name":"","type":"address"},{"internalType":"addresspayable","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"pure","type":"function"},{"constant":false,"inputs":[],"name":"pause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"prevVault","outputs":[{"internalType":"contractWithdrawable","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_successor","type":"address"}],"name":"retire","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"successor","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"unpause","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newIncognitoProxy","type":"address"}],"name":"updateIncognitoProxy","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"bytes","name":"inst","type":"bytes"},{"internalType":"uint256[2]","name":"heights","type":"uint256[2]"},{"internalType":"bytes32[][2]","name":"instPaths","type":"bytes32[][2]"},{"internalType":"bool[][2]","name":"instPathIsLefts","type":"bool[][2]"},{"internalType":"bytes32[2]","name":"instRoots","type":"bytes32[2]"},{"internalType":"bytes32[2]","name":"blkData","type":"bytes32[2]"},{"internalType":"uint256[][2]","name":"sigIdxs","type":"uint256[][2]"},{"internalType":"uint8[][2]","name":"sigVs","type":"uint8[][2]"},{"internalType":"bytes32[][2]","name":"sigRs","type":"bytes32[][2]"},{"internalType":"bytes32[][2]","name":"sigSs","type":"bytes32[][2]"}],"name":"withdraw","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"withdrawed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"}]`
	AbiJson       = `` /* 10799-byte string literal not displayed */
	BridgeShardID = 1
	EthAddrStr    = "0x0000000000000000000000000000000000000000"
)

Ethereum Decentralized bridge

View Source 
const (
	BridgeRequestNotFoundStatus   = 0
	BridgeRequestProcessingStatus = 1
	BridgeRequestAcceptedStatus   = 2
	BridgeRequestRejectedStatus   = 3

	PDENotFoundStatus = 0

	PDEContributionWaitingStatus          = 1
	PDEContributionAcceptedStatus         = 2
	PDEContributionRefundStatus           = 3
	PDEContributionMatchedNReturnedStatus = 4

	PDETradeAcceptedStatus = 1
	PDETradeRefundStatus   = 2

	PDECrossPoolTradeAcceptedStatus = 1
	PDECrossPoolTradeRefundStatus   = 2

	PDEWithdrawalAcceptedStatus = 1
	PDEWithdrawalRejectedStatus = 2

	PDEFeeWithdrawalAcceptedStatus = 1
	PDEFeeWithdrawalRejectedStatus = 2

	MinTxFeesOnTokenRequirement                             = 10000000000000 // 10000 prv, this requirement is applied from beacon height 87301 mainnet
	BeaconBlockHeighMilestoneForMinTxFeesOnTokenRequirement = 87301          // milestone of beacon height, when apply min fee on token requirement

	//portal
	PortalCustodianDepositAcceptedStatus = 1
	PortalCustodianDepositRefundStatus   = 2

	PortalReqPTokenAcceptedStatus = 1
	PortalReqPTokenRejectedStatus = 2

	PortalPortingTxRequestAcceptedStatus = 1
	PortalPortingTxRequestRejectedStatus = 3

	PortalPortingReqSuccessStatus    = 1
	PortalPortingReqWaitingStatus    = 2
	PortalPortingReqExpiredStatus    = 3
	PortalPortingReqLiquidatedStatus = 4

	PortalRedeemReqSuccessStatus                = 1
	PortalRedeemReqWaitingStatus                = 2
	PortalRedeemReqMatchedStatus                = 3
	PortalRedeemReqLiquidatedStatus             = 4
	PortalRedeemReqCancelledByLiquidationStatus = 5

	PortalRedeemRequestTxAcceptedStatus = 1
	PortalRedeemRequestTxRejectedStatus = 2

	PortalCustodianWithdrawReqAcceptedStatus = 1
	PortalCustodianWithdrawReqRejectStatus   = 2

	PortalReqUnlockCollateralAcceptedStatus = 1
	PortalReqUnlockCollateralRejectedStatus = 2

	PortalLiquidateCustodianSuccessStatus = 1
	PortalLiquidateCustodianFailedStatus  = 2

	PortalLiquidationTPExchangeRatesSuccessStatus = 1
	PortalLiquidationTPExchangeRatesFailedStatus  = 2

	PortalReqWithdrawRewardAcceptedStatus = 1
	PortalReqWithdrawRewardRejectedStatus = 2

	PortalRedeemLiquidateExchangeRatesSuccessStatus  = 1
	PortalRedeemLiquidateExchangeRatesRejectedStatus = 2

	PortalLiquidationCustodianDepositSuccessStatus  = 1
	PortalLiquidationCustodianDepositRejectedStatus = 2

	PortalExpiredPortingReqSuccessStatus = 1
	PortalExpiredPortingReqFailedStatus  = 2

	PortalExchangeRatesAcceptedStatus = 1
	PortalExchangeRatesRejectedStatus = 2

	PortalReqMatchingRedeemAcceptedStatus = 1
	PortalReqMatchingRedeemRejectedStatus = 2

	PortalTopUpWaitingPortingSuccessStatus  = 1
	PortalTopUpWaitingPortingRejectedStatus = 2
)

Bridge, PDE & Portal statuses for RPCs

View Source 
const (
	PDEContributionWaitingChainStatus          = "waiting"
	PDEContributionMatchedChainStatus          = "matched"
	PDEContributionRefundChainStatus           = "refund"
	PDEContributionMatchedNReturnedChainStatus = "matchedNReturned"

	PDETradeAcceptedChainStatus = "accepted"
	PDETradeRefundChainStatus   = "refund"

	PDEWithdrawalAcceptedChainStatus = "accepted"
	PDEWithdrawalRejectedChainStatus = "rejected"

	PDEFeeWithdrawalAcceptedChainStatus = "accepted"
	PDEFeeWithdrawalRejectedChainStatus = "rejected"

	PDEWithdrawalOnFeeAcceptedChainStatus      = "onFeeAccepted"
	PDEWithdrawalOnPoolPairAcceptedChainStatus = "onPoolPairAccepted"
	PDEWithdrawalWithPRVFeeRejectedChainStatus = "withPRVFeeRejected"

	PDECrossPoolTradeFeeRefundChainStatus          = "xPoolTradeRefundFee"
	PDECrossPoolTradeSellingTokenRefundChainStatus = "xPoolTradeRefundSellingToken"
	PDECrossPoolTradeAcceptedChainStatus           = "xPoolTradeAccepted"
)

PDE statuses for chain

View Source 
const (
	PortalCustodianDepositAcceptedChainStatus = "accepted"
	PortalCustodianDepositRefundChainStatus   = "refund"

	PortalReqPTokensAcceptedChainStatus = "accepted"
	PortalReqPTokensRejectedChainStatus = "rejected"

	PortalPortingRequestAcceptedChainStatus = "accepted"
	PortalPortingRequestRejectedChainStatus = "rejected"

	PortalExchangeRatesAcceptedChainStatus = "accepted"
	PortalExchangeRatesRejectedChainStatus = "rejected"

	PortalRedeemRequestAcceptedChainStatus           = "accepted"
	PortalRedeemRequestRejectedChainStatus           = "rejected"
	PortalRedeemReqCancelledByLiquidationChainStatus = "cancelled"

	PortalCustodianWithdrawRequestAcceptedStatus = "accepted"
	PortalCustodianWithdrawRequestRejectedStatus = "rejected"

	PortalReqUnlockCollateralAcceptedChainStatus = "accepted"
	PortalReqUnlockCollateralRejectedChainStatus = "rejected"

	PortalLiquidateCustodianSuccessChainStatus = "success"
	PortalLiquidateCustodianFailedChainStatus  = "failed"

	PortalLiquidateTPExchangeRatesSuccessChainStatus = "success"
	PortalLiquidateTPExchangeRatesFailedChainStatus  = "rejected"

	PortalReqWithdrawRewardAcceptedChainStatus = "accepted"
	PortalReqWithdrawRewardRejectedChainStatus = "rejected"

	PortalRedeemLiquidateExchangeRatesSuccessChainStatus  = "success"
	PortalRedeemLiquidateExchangeRatesRejectedChainStatus = "rejected"

	PortalLiquidationCustodianDepositSuccessChainStatus  = "success"
	PortalLiquidationCustodianDepositRejectedChainStatus = "rejected"

	PortalExpiredWaitingPortingReqSuccessChainStatus = "success"
	PortalExpiredWaitingPortingReqFailedChainStatus  = "failed"

	PortalReqMatchingRedeemAcceptedChainStatus = "accepted"
	PortalReqMatchingRedeemRejectedChainStatus = "rejected"

	PortalPickMoreCustodianRedeemSuccessChainStatus = "success"
	PortalPickMoreCustodianRedeemFailedChainStatus  = "failed"

	PortalTopUpWaitingPortingSuccessChainStatus  = "success"
	PortalTopUpWaitingPortingRejectedChainStatus = "rejected"
)

Portal status for chain

View Source 
const (
	RelayingHeaderRejectedChainStatus    = "rejected"
	RelayingHeaderConsideringChainStatus = "considering"
)

Relaying header

View Source 
const (
	HexEmptyRoot = "56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421"
)
View Source 
const PRVIDStr = "0000000000000000000000000000000000000000000000000000000000000004"
View Source 
const PortalBNBIDStr = "6abd698ea7ddd1f98b1ecaaddab5db0453b8363ff092f0d8d7d4c6b1155fb693"
View Source 
const PortalBTCIDStr = "ef5947f70ead81a76a53c7c8b7317dd5245510c665d3a13921dc9a581188728b"
View Source 
const TIMESLOT = 10

Variables

View Source 
var (
	MaxTxSize    = uint64(100)  // unit KB = 100KB
	MaxBlockSize = uint64(2000) //unit kilobytes = 2 Megabyte
)
View Source 
var (
	PRVCoinID   = Hash{4} // To send PRV in custom token
	PRVCoinName = "PRV"   // To send PRV in custom token
)

special token ids (aka. PropertyID in custom token)

View Source 
var CipherTextIsEmptyErr = errors.New("ciphertext is empty")
View Source 
var (
	EmptyRoot = HexToHash(HexEmptyRoot)
)
View Source 
var InvalidAESKeyErr = errors.New("aes key is invalid")
View Source 
var InvalidHashSizeErr = errors.New("invalid hash size")
View Source 
var InvalidMaxHashSizeErr = errors.New("invalid max hash size")
View Source 
var MinAmountPortalPToken = map[string]uint64{
	PortalBTCIDStr: 10,
	PortalBNBIDStr: 10,
}

set MinAmountPortalPToken to avoid attacking with amount is less than smallest unit of cryptocurrency such as satoshi in BTC

View Source 
var NilHashErr = errors.New("input hash is nil")
View Source 
var PlainTextIsEmptyErr = errors.New("plaintext is empty")
View Source 
var PortalSupportedIncTokenIDs = []string{
	PortalBTCIDStr,
	PortalBNBIDStr,
}

Functions

func AddPaddingBigInt 

func AddPaddingBigInt(numInt *big.Int, fixedSize int) []byte

AddPaddingBigInt adds padding to big int to it is fixed size and returns bytes array

func AppDataDir 

func AppDataDir(appName string, roaming bool) string

AppDataDir returns an operating system specific directory to be used for storing application data for an application.

The appName parameter is the name of the application the data directory is being requested for. This function will prepend a period to the appName for POSIX style operating systems since that is standard practice. An empty appName or one with a single dot is treated as requesting the current directory so only "." will be returned. Further, the first character of appName will be made lowercase for POSIX style operating systems and uppercase for Mac and Windows since that is standard practice.

The roaming parameter only applies to Windows where it specifies the roaming application data profile (%APPDATA%) should be used instead of the local one (%LOCALAPPDATA%) that is used by default.

Example results: 

dir := AppDataDir("myapp", false)
 POSIX (Linux/BSD): ~/.myapp
 Mac OS: $HOME/Library/Application Support/Myapp
 Windows: %LOCALAPPDATA%\Myapp
 Plan 9: $home/myapp

func AppendSliceString 

func AppendSliceString(arrayStrings ...[][]string) [][]string

AppendSliceString is a variadic function, receives some lists of array of strings and appends them to one list of array of strings

func AssertAndConvertStrToNumber 

func AssertAndConvertStrToNumber(numStr interface{}) (uint64, error)

AssertAndConvertStrToNumber asserts and convert a passed input to uint64 number

func BoolToByte 

func BoolToByte(value bool) byte

BoolToByte receives a value in bool and returns a value in byte

func BytesToInt 

func BytesToInt(bytesArr []byte) int

BytesToInt reverts an integer number from 2-byte array

func BytesToInt32 

func BytesToInt32(b []byte) (int32, error)

BytesToInt32 converts little endian 4-byte array to int32 number

func BytesToUint32 

func BytesToUint32(b []byte) (uint32, error)

BytesToUint32 converts big endian 4-byte array to uint32 number

func BytesToUint64 

func BytesToUint64(b []byte) (uint64, error)

BytesToUint64 converts little endian 8-byte array to uint64 number

func CalculateTimeSlot 

func CalculateTimeSlot(time int64) int64

func CheckError 

func CheckError(errs ...error) error

CheckError receives a list of errors returns the first error which is not nil

func CleanAndExpandPath 

func CleanAndExpandPath(path string, defaultHomeDir string) string

cleanAndExpandPath expands environment variables and leading ~ in the passed path, cleans the result, and returns it.

func CompareStringArray 

func CompareStringArray(src []string, dst []string) bool

CompareStringArray receives 2 arrays of string and check whether 2 arrays is the same or not

func CompressDatabase 

func CompressDatabase(src string, dst string) error

func CopyBytes 

func CopyBytes(b []byte) (copiedBytes []byte)

CopyBytes returns an exact copy of the provided bytes.

func DecompressDatabaseBackup 

func DecompressDatabaseBackup(src string, dst string) error

func FromHex 

func FromHex(s string) []byte

FromHex returns the bytes represented by the hexadecimal string s. s may be prefixed with "0x".

func GZipFromBytes 

func GZipFromBytes(src []byte) ([]byte, error)

GZipFromBytes receives bytes array and compresses that bytes array using gzip

func GZipToBytes 

func GZipToBytes(src []byte) ([]byte, error)

GZipToBytes receives bytes array which is compressed data using gzip returns decompressed bytes array

func GetENV 

func GetENV(key, fallback string) string

GetENV to get environment variable by key

func GetShardChainKey 

func GetShardChainKey(shardID byte) string

func GetShardIDFromLastByte 

func GetShardIDFromLastByte(b byte) byte

GetShardIDFromLastByte receives a last byte of public key and returns a corresponding shardID

func GetValidStaker 

func GetValidStaker(committees []string, stakers []string) []string

func HashB 

func HashB(b []byte) []byte

HashB calculates SHA3-256 hashing of input b and returns the result in bytes array.

func Hex2Bytes 

func Hex2Bytes(str string) []byte

Hex2Bytes returns the bytes represented by the hexadecimal string str.

func IndexOfByte 

func IndexOfByte(item byte, array []byte) int

IndexOfByte receives a array of bytes and a item byte It checks whether a item is contained in array or not and returns the first index of the item in the array It returns -1 if the item is not in the array

func IndexOfHash 

func IndexOfHash(item Hash, list []Hash) int

func IndexOfStr 

func IndexOfStr(item string, list []string) int

IndexOfStr receives a list of strings and a item string It checks whether a item is contained in list or not and returns the first index of the item in the list It returns -1 if the item is not in the list

func IndexOfStrInHashMap 

func IndexOfStrInHashMap(v string, m map[Hash]string) int

IndexOfStrInHashMap receives a map[Hash]string and a value string It checks whether a value is contained in map or not It returns -1 if the item is not in the list and return 1 otherwise

func IndexOfUint64 

func IndexOfUint64(target uint64, arr []uint64) int

func Int32ToBytes 

func Int32ToBytes(value int32) []byte

Int32ToBytes converts int32 number to little endian 4-byte array

func Int64ToBytes 

func Int64ToBytes(value int64) []byte

Int64ToBytes converts int64 number to little endian 8-byte array

func IntToBytes 

func IntToBytes(n int) []byte

IntToBytes converts an integer number to 2-byte array in big endian

func InterfaceSlice 

func InterfaceSlice(slice interface{}) []interface{}

InterfaceSlice receives a slice which is a interface and converts it into slice of interface

func IsPortalExchangeRateToken 

func IsPortalExchangeRateToken(tokenIDStr string) bool

func IsPortalToken 

func IsPortalToken(tokenIDStr string) bool

func RandBigIntMaxRange 

func RandBigIntMaxRange(max *big.Int) (*big.Int, error)

RandBigIntMaxRange generates a big int with maximum value

func RandInt 

func RandInt() int

RandInt returns a random int number using math/rand

func RandInt64 

func RandInt64() int64

RandInt64 returns a random int64 number using math/rand

func Render 

func Render(data []byte) string

func SliceExists 

func SliceExists(slice interface{}, item interface{}) (bool, error)

SliceExists receives a slice and a item in interface type checks whether the slice contain the item or not

func Uint32ToBytes 

func Uint32ToBytes(value uint32) []byte

Uint32ToBytes converts uint32 number to big endian 4-byte array

func Uint64ToBytes 

func Uint64ToBytes(value uint64) []byte

Uint64ToBytes converts uint64 number to little endian 8-byte array

Types

type AES 

type AES struct {
	Key []byte
}

func (*AES) Decrypt 

func (aesObj *AES) Decrypt(ciphertext []byte) ([]byte, error)

func (*AES) Encrypt 

func (aesObj *AES) Encrypt(plaintext []byte) ([]byte, error)

type BlockInterface 

type BlockInterface interface {
	GetVersion() int
	GetHeight() uint64
	Hash() *Hash
	// AddValidationField(validateData string) error
	GetProducer() string
	GetValidationField() string
	GetRound() int
	GetRoundKey() string
	GetInstructions() [][]string
	GetConsensusType() string
	GetCurrentEpoch() uint64
	GetProduceTime() int64
	GetProposeTime() int64
	GetPrevHash() Hash
	GetProposer() string
}

type BlockPoolInterface 

type BlockPoolInterface interface {
	GetPrevHash() Hash
	Hash() *Hash
	GetHeight() uint64
	GetShardID() int
	GetRound() int
}

type ChainInterface 

type ChainInterface interface {
	GetShardID() int
}

type ErrorSaver 

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

func (*ErrorSaver) Get 

func (s *ErrorSaver) Get() error

func (*ErrorSaver) Save 

func (s *ErrorSaver) Save(errs ...error) error

type Hash 

type Hash [HashSize]byte

func BytesToHash 

func BytesToHash(b []byte) Hash

func HashArrayInterface 

func HashArrayInterface(target interface{}) (Hash, error)

func HashArrayOfHashArray 

func HashArrayOfHashArray(target []Hash) Hash

func HashH 

func HashH(b []byte) Hash

HashB calculates SHA3-256 hashing of input b and returns the result in Hash.

func HexToHash 

func HexToHash(s string) Hash

HexToHash sets byte representation of s to hash. If b is larger than len(h), b will be cropped from the left.

func Keccak256Hash 

func Keccak256Hash(data ...[]byte) (h Hash)

Keccak256Hash calculates and returns the Keccak256 hash of the input data, converting it to an internal Hash data structure.

func (Hash) Bytes 

func (h Hash) Bytes() []byte

func (*Hash) Cmp 

func (hashObj *Hash) Cmp(target *Hash) (int, error)

Cmp compare two hashes hash = target : return 0 hash > target : return 1 hash < target : return -1

func (*Hash) Decode 

func (hashObj *Hash) Decode(dst *Hash, src string) error

Decode decodes the byte-reversed hexadecimal string encoding of a Hash to a destination.

func (*Hash) Format 

func (hashObj *Hash) Format(f fmt.State, c rune)

Format writes first few bytes of hash for debugging

func (*Hash) GetBytes 

func (hashObj *Hash) GetBytes() []byte

GetBytes returns bytes array of hashObj

func (*Hash) IsEqual 

func (hashObj *Hash) IsEqual(target *Hash) bool

IsEqual returns true if target is the same as hashObj.

func (Hash) MarshalText 

func (hashObj Hash) MarshalText() ([]byte, error)

MarshalText converts hashObj string to bytes array

func (Hash) NewHash 

func (hashObj Hash) NewHash(newHash []byte) (*Hash, error)

NewHash receives a bytes array and returns a corresponding object Hash

func (Hash) NewHashFromStr 

func (hashObj Hash) NewHashFromStr(hash string) (*Hash, error)

NewHashFromStr creates a Hash from a hash string. The string should be the hexadecimal string of a byte-reversed hash, but any missing characters result in zero padding at the end of the Hash.

func (*Hash) SetBytes 

func (hashObj *Hash) SetBytes(newHash []byte) error

SetBytes sets the bytes array which represent the hash.

func (Hash) String 

func (hashObj Hash) String() string

String returns the Hash as the hexadecimal string of the byte-reversed hash.

func (*Hash) UnmarshalJSON 

func (hashObj *Hash) UnmarshalJSON(data []byte) error

UnmarshalJSON unmarshal json data to hashObj

func (Hash) UnmarshalText 

func (hashObj Hash) UnmarshalText(text []byte) error

UnmarshalText reverts bytes array to hashObj

type SimpleAddr 

type SimpleAddr struct {
	Net, Addr string
}

SimpleAddr implements the net.Addr interface with two fields struct

func ParseListener 

func ParseListener(addr string, netType string) (*SimpleAddr, error)

ParseListener determines whether the listen address is IPv4 and IPv6 and returns a slice of appropriate net.Addrs to listen on with TCP. It also properly detects address which apply to "all interfaces" and adds the address as both IPv4 and IPv6.

func ParseListeners 

func ParseListeners(addrs []string, netType string) ([]SimpleAddr, error)

ParseListeners determines whether each listen address is IPv4 and IPv6 and returns a slice of appropriate net.Addrs to listen on with TCP. It also properly detects addresses which apply to "all interfaces" and adds the address as both IPv4 and IPv6.

func (SimpleAddr) Network 

func (a SimpleAddr) Network() string

Network returns the network. This is part of the net.Addr interface.

func (SimpleAddr) String 

func (a SimpleAddr) String() string

String returns the address. This is part of the net.Addr interface.

type StorageSize 

type StorageSize float64

StorageSize is a wrapper around a float value that supports user friendly formatting.

func (StorageSize) String 

func (s StorageSize) String() string

String implements the stringer interface.

func (StorageSize) TerminalString 

func (s StorageSize) TerminalString() string

TerminalString implements log.TerminalStringer, formatting a string for console output during logging.

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