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replace.go
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replace.go
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package worker
import (
"strings"
"github.com/anyswap/CrossChain-Bridge/cmd/utils"
"github.com/anyswap/CrossChain-Bridge/mongodb"
"github.com/anyswap/CrossChain-Bridge/tokens"
)
var (
defWaitTimeToReplace = int64(900) // seconds
defMaxReplaceCount = 20
// key is signer address
swapinReplaceChanMap = make(map[string]chan *mongodb.MgoSwapResult)
swapoutReplaceChanMap = make(map[string]chan *mongodb.MgoSwapResult)
)
// StartReplaceJob replace job
func StartReplaceJob() {
if tokens.DstNonceSetter != nil {
mongodb.MgoWaitGroup.Add(1)
go startReplaceSwapinJob()
}
if tokens.SrcNonceSetter != nil {
mongodb.MgoWaitGroup.Add(1)
go startReplaceSwapoutJob()
}
}
func startReplaceSwapinJob() {
logWorker("replace", "start replace swapin job")
defer mongodb.MgoWaitGroup.Done()
if !tokens.DstBridge.GetChainConfig().EnableReplaceSwap {
logWorker("replace", "stop replace swapin job as disabled")
return
}
for {
res, err := findSwapinsToReplace()
if err != nil {
logWorkerError("replace", "find swapins error", err)
}
logWorker("replace", "find swapins to replace", "count", len(res))
for _, swap := range res {
if utils.IsCleanuping() {
logWorker("replace", "stop replace swapin job")
return
}
processReplaceSwap(swap, true)
}
if utils.IsCleanuping() {
logWorker("replace", "stop replace swapin job")
return
}
restInJob(restIntervalInReplaceSwapJob)
}
}
func startReplaceSwapoutJob() {
logWorker("replace", "start replace swapout job")
defer mongodb.MgoWaitGroup.Done()
if !tokens.SrcBridge.GetChainConfig().EnableReplaceSwap {
logWorker("replace", "stop replace swapout job as disabled")
return
}
for {
res, err := findSwapoutsToReplace()
if err != nil {
logWorkerError("replace", "find swapouts error", err)
}
logWorker("replace", "find swapouts to replace", "count", len(res))
for _, swap := range res {
if utils.IsCleanuping() {
logWorker("replace", "stop replace swapout job")
return
}
processReplaceSwap(swap, false)
}
if utils.IsCleanuping() {
logWorker("replace", "stop replace swapout job")
return
}
restInJob(restIntervalInReplaceSwapJob)
}
}
func findSwapinsToReplace() ([]*mongodb.MgoSwapResult, error) {
status := mongodb.MatchTxNotStable
septime := getSepTimeInFind(maxReplaceSwapLifetime)
return mongodb.FindSwapResultsToReplace(status, septime, true)
}
func findSwapoutsToReplace() ([]*mongodb.MgoSwapResult, error) {
status := mongodb.MatchTxNotStable
septime := getSepTimeInFind(maxReplaceSwapLifetime)
return mongodb.FindSwapResultsToReplace(status, septime, false)
}
func getReplaceConfigs(isSwapin bool) (waitTimeToReplace int64, maxReplaceCount int) {
var chainCfg *tokens.ChainConfig
if isSwapin {
chainCfg = tokens.DstBridge.GetChainConfig()
} else {
chainCfg = tokens.SrcBridge.GetChainConfig()
}
waitTimeToReplace = chainCfg.WaitTimeToReplace
maxReplaceCount = chainCfg.MaxReplaceCount
return waitTimeToReplace, maxReplaceCount
}
func processReplaceSwap(swap *mongodb.MgoSwapResult, isSwapin bool) {
if swap.SwapNonce == 0 || swap.SwapHeight != 0 {
return
}
switch swap.Status {
case mongodb.MatchTxEmpty:
case mongodb.MatchTxNotStable:
default:
return
}
waitTimeToReplace, maxReplaceCount := getReplaceConfigs(isSwapin)
if waitTimeToReplace == 0 {
waitTimeToReplace = defWaitTimeToReplace
}
if maxReplaceCount == 0 {
maxReplaceCount = defMaxReplaceCount
}
if len(swap.OldSwapTxs) > maxReplaceCount {
return
}
if getSepTimeInFind(waitTimeToReplace) < swap.Timestamp {
return
}
bridge := tokens.GetCrossChainBridge(!isSwapin)
err := checkIfSwapNonceHasPassed(bridge, swap, true)
if err != nil {
return
}
_ = updateSwapTimestamp(swap.TxID, swap.PairID, swap.Bind, isSwapin)
dispatchReplaceTask(swap)
}
func dispatchReplaceTask(swap *mongodb.MgoSwapResult) {
logWorker("replace", "dispatch task", "swap", swap)
pairID := strings.ToLower(swap.PairID)
pairCfg := tokens.GetTokenPairConfig(pairID)
isSwapin := tokens.SwapType(swap.SwapType) == tokens.SwapinType
if isSwapin {
swapinDcrmAddr := strings.ToLower(pairCfg.DestToken.DcrmAddress)
if _, exist := swapinReplaceChanMap[swapinDcrmAddr]; !exist {
swapinReplaceChanMap[swapinDcrmAddr] = make(chan *mongodb.MgoSwapResult, swapChanSize)
go processReplaceSwapTask(swapinReplaceChanMap[swapinDcrmAddr])
}
swapinReplaceChanMap[swapinDcrmAddr] <- swap
} else {
swapoutDcrmAddr := strings.ToLower(pairCfg.SrcToken.DcrmAddress)
if _, exist := swapoutReplaceChanMap[swapoutDcrmAddr]; !exist {
swapoutReplaceChanMap[swapoutDcrmAddr] = make(chan *mongodb.MgoSwapResult, swapChanSize)
go processReplaceSwapTask(swapoutReplaceChanMap[swapoutDcrmAddr])
}
swapoutReplaceChanMap[swapoutDcrmAddr] <- swap
}
}
func processReplaceSwapTask(swapChan <-chan *mongodb.MgoSwapResult) {
for {
select {
case <-utils.CleanupChan:
return
case swap := <-swapChan:
doReplaceSwap(swap)
}
}
}
func doReplaceSwap(swap *mongodb.MgoSwapResult) {
if swap.SwapNonce == 0 || swap.SwapHeight != 0 {
return
}
isSwapin := tokens.SwapType(swap.SwapType) == tokens.SwapinType
nonceSetter := tokens.GetNonceSetter(!isSwapin)
if nonceSetter == nil {
logWorkerWarn("replace", "not nonce support chain", "isSwapin", isSwapin)
return
}
logWorker("replace", "process task", "swap", swap)
var txHash string
var err error
if isSwapin {
txHash, err = ReplaceSwapin(swap.TxID, swap.PairID, swap.Bind, "")
} else {
txHash, err = ReplaceSwapout(swap.TxID, swap.PairID, swap.Bind, "")
}
if err != nil {
logWorker("replace", "replace swap error", "pairID", swap.PairID, "txid", swap.TxID, "bind", swap.Bind, "isSwapin", isSwapin, "swapNonce", swap.SwapNonce, "err", err)
} else {
logWorker("replace", "replace swap finished", "pairID", swap.PairID, "txid", swap.TxID, "bind", swap.Bind, "isSwapin", isSwapin, "txHash", txHash, "swapNonce", swap.SwapNonce)
}
}
func isTransactionOnChain(bridge tokens.NonceSetter, txHash string) bool {
if txHash == "" {
return false
}
blockHeight, _ := bridge.GetTxBlockInfo(txHash)
return blockHeight > 0
}
func isSwapResultTxOnChain(bridge tokens.NonceSetter, res *mongodb.MgoSwapResult) bool {
if isTransactionOnChain(bridge, res.SwapTx) {
return true
}
for _, tx := range res.OldSwapTxs {
if isTransactionOnChain(bridge, tx) {
return true
}
}
return false
}