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relayer_state.go
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relayer_state.go
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package tradingstate
import (
"fmt"
"math/big"
"github.com/XinFinOrg/XDPoSChain/common"
"github.com/XinFinOrg/XDPoSChain/core/state"
"github.com/XinFinOrg/XDPoSChain/crypto"
"github.com/XinFinOrg/XDPoSChain/log"
"github.com/pkg/errors"
)
func GetLocMappingAtKey(key common.Hash, slot uint64) *big.Int {
slotHash := common.BigToHash(new(big.Int).SetUint64(slot))
retByte := crypto.Keccak256(key.Bytes(), slotHash.Bytes())
ret := new(big.Int)
ret.SetBytes(retByte)
return ret
}
func GetExRelayerFee(relayer common.Address, statedb *state.StateDB) *big.Int {
slot := RelayerMappingSlot["RELAYER_LIST"]
locBig := GetLocMappingAtKey(relayer.Hash(), slot)
locBig = new(big.Int).Add(locBig, RelayerStructMappingSlot["_fee"])
locHash := common.BigToHash(locBig)
return statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), locHash).Big()
}
func GetRelayerOwner(relayer common.Address, statedb *state.StateDB) common.Address {
slot := RelayerMappingSlot["RELAYER_LIST"]
locBig := GetLocMappingAtKey(relayer.Hash(), slot)
log.Debug("GetRelayerOwner", "relayer", relayer.Hex(), "slot", slot, "locBig", locBig)
locBig = new(big.Int).Add(locBig, RelayerStructMappingSlot["_owner"])
locHash := common.BigToHash(locBig)
return common.BytesToAddress(statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), locHash).Bytes())
}
// return true if relayer request to resign and have not withdraw locked fund
func IsResignedRelayer(relayer common.Address, statedb *state.StateDB) bool {
slot := RelayerMappingSlot["RESIGN_REQUESTS"]
locBig := GetLocMappingAtKey(relayer.Hash(), slot)
locHash := common.BigToHash(locBig)
return statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), locHash) != (common.Hash{})
}
func GetBaseTokenLength(relayer common.Address, statedb *state.StateDB) uint64 {
slot := RelayerMappingSlot["RELAYER_LIST"]
locBig := GetLocMappingAtKey(relayer.Hash(), slot)
locBig = new(big.Int).Add(locBig, RelayerStructMappingSlot["_fromTokens"])
locHash := common.BigToHash(locBig)
return statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), locHash).Big().Uint64()
}
func GetBaseTokenAtIndex(relayer common.Address, statedb *state.StateDB, index uint64) common.Address {
slot := RelayerMappingSlot["RELAYER_LIST"]
locBig := GetLocMappingAtKey(relayer.Hash(), slot)
locBig = new(big.Int).Add(locBig, RelayerStructMappingSlot["_fromTokens"])
locHash := common.BigToHash(locBig)
loc := state.GetLocDynamicArrAtElement(locHash, index, 1)
return common.BytesToAddress(statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), loc).Bytes())
}
func GetQuoteTokenLength(relayer common.Address, statedb *state.StateDB) uint64 {
slot := RelayerMappingSlot["RELAYER_LIST"]
locBig := GetLocMappingAtKey(relayer.Hash(), slot)
locBig = new(big.Int).Add(locBig, RelayerStructMappingSlot["_toTokens"])
locHash := common.BigToHash(locBig)
return statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), locHash).Big().Uint64()
}
func GetQuoteTokenAtIndex(relayer common.Address, statedb *state.StateDB, index uint64) common.Address {
slot := RelayerMappingSlot["RELAYER_LIST"]
locBig := GetLocMappingAtKey(relayer.Hash(), slot)
locBig = new(big.Int).Add(locBig, RelayerStructMappingSlot["_toTokens"])
locHash := common.BigToHash(locBig)
loc := state.GetLocDynamicArrAtElement(locHash, index, 1)
return common.BytesToAddress(statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), loc).Bytes())
}
func GetRelayerCount(statedb *state.StateDB) uint64 {
slot := RelayerMappingSlot["RelayerCount"]
slotHash := common.BigToHash(new(big.Int).SetUint64(slot))
valueHash := statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), slotHash)
return new(big.Int).SetBytes(valueHash.Bytes()).Uint64()
}
func GetAllCoinbases(statedb *state.StateDB) []common.Address {
relayerCount := GetRelayerCount(statedb)
slot := RelayerMappingSlot["RELAYER_COINBASES"]
coinbases := []common.Address{}
for i := uint64(0); i < relayerCount; i++ {
valueHash := statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), common.BytesToHash(state.GetLocMappingAtKey(common.BigToHash(big.NewInt(int64(i))), slot).Bytes()))
coinbases = append(coinbases, common.BytesToAddress(valueHash.Bytes()))
}
return coinbases
}
func GetAllTradingPairs(statedb *state.StateDB) (map[common.Hash]bool, error) {
coinbases := GetAllCoinbases(statedb)
slot := RelayerMappingSlot["RELAYER_LIST"]
allPairs := map[common.Hash]bool{}
for _, coinbase := range coinbases {
locBig := GetLocMappingAtKey(coinbase.Hash(), slot)
fromTokenSlot := new(big.Int).Add(locBig, RelayerStructMappingSlot["_fromTokens"])
fromTokenLength := statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), common.BigToHash(fromTokenSlot)).Big().Uint64()
toTokenSlot := new(big.Int).Add(locBig, RelayerStructMappingSlot["_toTokens"])
toTokenLength := statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), common.BigToHash(toTokenSlot)).Big().Uint64()
if toTokenLength != fromTokenLength {
return map[common.Hash]bool{}, fmt.Errorf("Invalid length from token & to toke : from :%d , to :%d ", fromTokenLength, toTokenLength)
}
fromTokens := []common.Address{}
fromTokenSlotHash := common.BytesToHash(fromTokenSlot.Bytes())
for i := uint64(0); i < fromTokenLength; i++ {
fromToken := common.BytesToAddress(statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), state.GetLocDynamicArrAtElement(fromTokenSlotHash, i, uint64(1))).Bytes())
fromTokens = append(fromTokens, fromToken)
}
toTokenSlotHash := common.BytesToHash(toTokenSlot.Bytes())
for i := uint64(0); i < toTokenLength; i++ {
toToken := common.BytesToAddress(statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), state.GetLocDynamicArrAtElement(toTokenSlotHash, i, uint64(1))).Bytes())
log.Debug("GetAllTradingPairs all pair info", "from", fromTokens[i].Hex(), "toToken", toToken.Hex())
allPairs[GetTradingOrderBookHash(fromTokens[i], toToken)] = true
}
}
log.Debug("GetAllTradingPairs", "coinbase", len(coinbases), "allPairs", len(allPairs))
return allPairs, nil
}
func SubRelayerFee(relayer common.Address, fee *big.Int, statedb *state.StateDB) error {
slot := RelayerMappingSlot["RELAYER_LIST"]
locBig := GetLocMappingAtKey(relayer.Hash(), slot)
locBigDeposit := new(big.Int).SetUint64(uint64(0)).Add(locBig, RelayerStructMappingSlot["_deposit"])
locHashDeposit := common.BigToHash(locBigDeposit)
balance := statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), locHashDeposit).Big()
log.Debug("ApplyXDCXMatchedTransaction settle balance: SubRelayerFee BEFORE", "relayer", relayer.String(), "balance", balance)
if balance.Cmp(fee) < 0 {
return errors.Errorf("relayer %s isn't enough XDC fee", relayer.String())
} else {
balance = new(big.Int).Sub(balance, fee)
statedb.SetState(common.HexToAddress(common.RelayerRegistrationSMC), locHashDeposit, common.BigToHash(balance))
statedb.SubBalance(common.HexToAddress(common.RelayerRegistrationSMC), fee)
log.Debug("ApplyXDCXMatchedTransaction settle balance: SubRelayerFee AFTER", "relayer", relayer.String(), "balance", balance)
return nil
}
}
func CheckRelayerFee(relayer common.Address, fee *big.Int, statedb *state.StateDB) error {
slot := RelayerMappingSlot["RELAYER_LIST"]
locBig := GetLocMappingAtKey(relayer.Hash(), slot)
locBigDeposit := new(big.Int).SetUint64(uint64(0)).Add(locBig, RelayerStructMappingSlot["_deposit"])
locHashDeposit := common.BigToHash(locBigDeposit)
balance := statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), locHashDeposit).Big()
if new(big.Int).Sub(balance, fee).Cmp(new(big.Int).Mul(common.BasePrice, common.RelayerLockedFund)) < 0 {
return errors.Errorf("relayer %s isn't enough XDC fee : balance %d , fee : %d ", relayer.Hex(), balance.Uint64(), fee.Uint64())
}
return nil
}
func AddTokenBalance(addr common.Address, value *big.Int, token common.Address, statedb *state.StateDB) error {
// XDC native
if token.String() == common.XDCNativeAddress {
balance := statedb.GetBalance(addr)
log.Debug("ApplyXDCXMatchedTransaction settle balance: ADD TOKEN XDC NATIVE BEFORE", "token", token.String(), "address", addr.String(), "balance", balance, "orderValue", value)
statedb.AddBalance(addr, value)
balance = statedb.GetBalance(addr)
log.Debug("ApplyXDCXMatchedTransaction settle balance: ADD XDC NATIVE BALANCE AFTER", "token", token.String(), "address", addr.String(), "balance", balance, "orderValue", value)
return nil
}
// TRC tokens
if statedb.Exist(token) {
slot := TokenMappingSlot["balances"]
locHash := common.BigToHash(GetLocMappingAtKey(addr.Hash(), slot))
balance := statedb.GetState(token, locHash).Big()
log.Debug("ApplyXDCXMatchedTransaction settle balance: ADD TOKEN BALANCE BEFORE", "token", token.String(), "address", addr.String(), "balance", balance, "orderValue", value)
balance = new(big.Int).Add(balance, value)
statedb.SetState(token, locHash, common.BigToHash(balance))
log.Debug("ApplyXDCXMatchedTransaction settle balance: ADD TOKEN BALANCE AFTER", "token", token.String(), "address", addr.String(), "balance", balance, "orderValue", value)
return nil
} else {
return errors.Errorf("token %s isn't exist", token.String())
}
}
func SubTokenBalance(addr common.Address, value *big.Int, token common.Address, statedb *state.StateDB) error {
// XDC native
if token.String() == common.XDCNativeAddress {
balance := statedb.GetBalance(addr)
log.Debug("ApplyXDCXMatchedTransaction settle balance: SUB XDC NATIVE BALANCE BEFORE", "token", token.String(), "address", addr.String(), "balance", balance, "orderValue", value)
if balance.Cmp(value) < 0 {
return errors.Errorf("value %s in token %s not enough , have : %s , want : %s ", addr.String(), token.String(), balance, value)
}
statedb.SubBalance(addr, value)
balance = statedb.GetBalance(addr)
log.Debug("ApplyXDCXMatchedTransaction settle balance: SUB XDC NATIVE BALANCE AFTER", "token", token.String(), "address", addr.String(), "balance", balance, "orderValue", value)
return nil
}
// TRC tokens
if statedb.Exist(token) {
slot := TokenMappingSlot["balances"]
locHash := common.BigToHash(GetLocMappingAtKey(addr.Hash(), slot))
balance := statedb.GetState(token, locHash).Big()
log.Debug("ApplyXDCXMatchedTransaction settle balance: SUB TOKEN BALANCE BEFORE", "token", token.String(), "address", addr.String(), "balance", balance, "orderValue", value)
if balance.Cmp(value) < 0 {
return errors.Errorf("value %s in token %s not enough , have : %s , want : %s ", addr.String(), token.String(), balance, value)
}
balance = new(big.Int).Sub(balance, value)
statedb.SetState(token, locHash, common.BigToHash(balance))
log.Debug("ApplyXDCXMatchedTransaction settle balance: SUB TOKEN BALANCE AFTER", "token", token.String(), "address", addr.String(), "balance", balance, "orderValue", value)
return nil
} else {
return errors.Errorf("token %s isn't exist", token.String())
}
}
func CheckSubTokenBalance(addr common.Address, value *big.Int, token common.Address, statedb *state.StateDB, mapBalances map[common.Address]map[common.Address]*big.Int) (*big.Int, error) {
// XDC native
if token.String() == common.XDCNativeAddress {
var balance *big.Int
if value := mapBalances[token][addr]; value != nil {
balance = value
} else {
balance = statedb.GetBalance(addr)
}
if balance.Cmp(value) < 0 {
return nil, errors.Errorf("value %s in token %s not enough , have : %s , want : %s ", addr.String(), token.String(), balance, value)
}
newBalance := new(big.Int).Sub(balance, value)
log.Debug("CheckSubTokenBalance settle balance: SUB XDC NATIVE BALANCE ", "token", token.String(), "address", addr.String(), "balance", balance, "value", value, "newBalance", newBalance)
return newBalance, nil
}
// TRC tokens
if statedb.Exist(token) {
var balance *big.Int
if value := mapBalances[token][addr]; value != nil {
balance = value
} else {
slot := TokenMappingSlot["balances"]
locHash := common.BigToHash(GetLocMappingAtKey(addr.Hash(), slot))
balance = statedb.GetState(token, locHash).Big()
}
if balance.Cmp(value) < 0 {
return nil, errors.Errorf("value %s in token %s not enough , have : %s , want : %s ", addr.String(), token.String(), balance, value)
}
newBalance := new(big.Int).Sub(balance, value)
log.Debug("CheckSubTokenBalance settle balance: SUB TOKEN BALANCE ", "token", token.String(), "address", addr.String(), "balance", balance, "value", value, "newBalance", newBalance)
return newBalance, nil
} else {
return nil, errors.Errorf("token %s isn't exist", token.String())
}
}
func CheckAddTokenBalance(addr common.Address, value *big.Int, token common.Address, statedb *state.StateDB, mapBalances map[common.Address]map[common.Address]*big.Int) (*big.Int, error) {
// XDC native
if token.String() == common.XDCNativeAddress {
var balance *big.Int
if value := mapBalances[token][addr]; value != nil {
balance = value
} else {
balance = statedb.GetBalance(addr)
}
newBalance := new(big.Int).Add(balance, value)
log.Debug("CheckAddTokenBalance settle balance: ADD XDC NATIVE BALANCE ", "token", token.String(), "address", addr.String(), "balance", balance, "value", value, "newBalance", newBalance)
return newBalance, nil
}
// TRC tokens
if statedb.Exist(token) {
var balance *big.Int
if value := mapBalances[token][addr]; value != nil {
balance = value
} else {
slot := TokenMappingSlot["balances"]
locHash := common.BigToHash(GetLocMappingAtKey(addr.Hash(), slot))
balance = statedb.GetState(token, locHash).Big()
}
newBalance := new(big.Int).Add(balance, value)
log.Debug("CheckAddTokenBalance settle balance: ADD TOKEN BALANCE ", "token", token.String(), "address", addr.String(), "balance", balance, "value", value, "newBalance", newBalance)
if common.BigToHash(newBalance).Big().Cmp(newBalance) != 0 {
return nil, fmt.Errorf("Overflow when try add token balance , max is 2^256 , balance : %v , value:%v ", balance, value)
} else {
return newBalance, nil
}
} else {
return nil, errors.Errorf("token %s isn't exist", token.String())
}
}
func CheckSubRelayerFee(relayer common.Address, fee *big.Int, statedb *state.StateDB, mapBalances map[common.Address]*big.Int) (*big.Int, error) {
balance := mapBalances[relayer]
if balance == nil {
slot := RelayerMappingSlot["RELAYER_LIST"]
locBig := GetLocMappingAtKey(relayer.Hash(), slot)
locBigDeposit := new(big.Int).SetUint64(uint64(0)).Add(locBig, RelayerStructMappingSlot["_deposit"])
locHashDeposit := common.BigToHash(locBigDeposit)
balance = statedb.GetState(common.HexToAddress(common.RelayerRegistrationSMC), locHashDeposit).Big()
}
log.Debug("CheckSubRelayerFee settle balance: SubRelayerFee ", "relayer", relayer.String(), "balance", balance, "fee", fee)
if balance.Cmp(fee) < 0 {
return nil, errors.Errorf("relayer %s isn't enough XDC fee", relayer.String())
} else {
return new(big.Int).Sub(balance, fee), nil
}
}
func GetTokenBalance(addr common.Address, token common.Address, statedb *state.StateDB) *big.Int {
// XDC native
if token.String() == common.XDCNativeAddress {
return statedb.GetBalance(addr)
}
// TRC tokens
if statedb.Exist(token) {
slot := TokenMappingSlot["balances"]
locHash := common.BigToHash(GetLocMappingAtKey(addr.Hash(), slot))
return statedb.GetState(token, locHash).Big()
} else {
return common.Big0
}
}
func SetTokenBalance(addr common.Address, balance *big.Int, token common.Address, statedb *state.StateDB) error {
// XDC native
if token.String() == common.XDCNativeAddress {
statedb.SetBalance(addr, balance)
return nil
}
// TRC tokens
if statedb.Exist(token) {
slot := TokenMappingSlot["balances"]
locHash := common.BigToHash(GetLocMappingAtKey(addr.Hash(), slot))
statedb.SetState(token, locHash, common.BigToHash(balance))
return nil
} else {
return errors.Errorf("token %s isn't exist", token.String())
}
}
func SetSubRelayerFee(relayer common.Address, balance *big.Int, fee *big.Int, statedb *state.StateDB) {
slot := RelayerMappingSlot["RELAYER_LIST"]
locBig := GetLocMappingAtKey(relayer.Hash(), slot)
locBigDeposit := new(big.Int).SetUint64(uint64(0)).Add(locBig, RelayerStructMappingSlot["_deposit"])
locHashDeposit := common.BigToHash(locBigDeposit)
statedb.SetState(common.HexToAddress(common.RelayerRegistrationSMC), locHashDeposit, common.BigToHash(balance))
statedb.SubBalance(common.HexToAddress(common.RelayerRegistrationSMC), fee)
}