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prevent repeat checkpoint sync tx to root chain #121

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Merged
mengcody merged 1 commit into from
Feb 4, 2026
Merged

prevent repeat checkpoint sync tx to root chain #121

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40 changes: 38 additions & 2 deletions bridge/setu/listener/heimdall.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ package listener
import (
"context"
"encoding/json"
"fmt"
"math/big"
"strconv"
"sync"
Expand Down Expand Up @@ -112,14 +113,17 @@ func (hl *HeimdallListener) StartPolling(ctx context.Context, pollInterval time.

hl.Logger.Info("Fetching new events between", "fromBlock", fromBlock, "toBlock", toBlock)

// set to avoid deduplicate checkpoint-sync events by (rootChain, number, startBlock, endBlock)
checkpointSyncSet := make(map[string]struct{})

// Querying and processing Begin events
for i := fromBlock; i <= toBlock; i++ {
events, err := helper.GetBeginBlockEvents(hl.httpClient, int64(i))
if err != nil {
hl.Logger.Error("Error fetching begin block events", "error", err)
}
for _, event := range events {
hl.ProcessBlockEvent(sdk.StringifyEvent(event), int64(i))
hl.ProcessBlockEvent(sdk.StringifyEvent(event), int64(i), checkpointSyncSet)
}
}

Expand Down Expand Up @@ -202,11 +206,18 @@ func (hl *HeimdallListener) fetchFromAndToBlock() (uint64, uint64, error) {
return fromBlock, toBlock, err
}
}
maxQueryBlocks := helper.GetConfig().HeimdallMaxQueryBlocks
if maxQueryBlocks == 0 {
maxQueryBlocks = helper.DefaultHeimdallMaxQueryBlocks
}
if maxQueryBlocks != 0 && toBlock-fromBlock > uint64(maxQueryBlocks) {
toBlock = fromBlock + uint64(maxQueryBlocks)
}
return fromBlock, toBlock, err
}

// ProcessBlockEvent - process Blockevents (BeginBlock, EndBlock events) from heimdall.
func (hl *HeimdallListener) ProcessBlockEvent(event sdk.StringEvent, blockHeight int64) {
func (hl *HeimdallListener) ProcessBlockEvent(event sdk.StringEvent, blockHeight int64, checkpointSyncSet map[string]struct{}) {
hl.Logger.Info("Received block event from Heimdall", "eventType", event.Type, "height", blockHeight)
eventBytes, err := json.Marshal(event)
if err != nil {
Expand All @@ -218,6 +229,13 @@ func (hl *HeimdallListener) ProcessBlockEvent(event sdk.StringEvent, blockHeight
case checkpointTypes.EventTypeCheckpoint:
hl.sendBlockTask("sendCheckpointToRootchain", eventBytes, blockHeight)
case checkpointTypes.EventTypeCheckpointSync:
key := hl.getCheckpointSyncKey(event)
if _, exists := checkpointSyncSet[key]; exists {
hl.Logger.Info("CheckpointSync duplicate, skip sending task", "key", key)
return
}

checkpointSyncSet[key] = struct{}{}
hl.sendBlockTask("sendCheckpointSyncToStakeChain", eventBytes, blockHeight)
case slashingTypes.EventTypeSlashLimit:
hl.sendBlockTask("sendTickToHeimdall", eventBytes, blockHeight)
Expand All @@ -236,6 +254,24 @@ func (hl *HeimdallListener) ProcessBlockEvent(event sdk.StringEvent, blockHeight
}
}

func (hl *HeimdallListener) getCheckpointSyncKey(event sdk.StringEvent) string {
var rootChain string
var number, startBlock, endBlock uint64
for _, attr := range event.Attributes {
switch attr.Key {
case checkpointTypes.AttributeKeyRootChain:
rootChain = attr.Value
case checkpointTypes.AttributeKeyHeaderIndex:
number, _ = strconv.ParseUint(attr.Value, 10, 64)
case checkpointTypes.AttributeKeyStartBlock:
startBlock, _ = strconv.ParseUint(attr.Value, 10, 64)
case checkpointTypes.AttributeKeyEndBlock:
endBlock, _ = strconv.ParseUint(attr.Value, 10, 64)
}
}
return fmt.Sprintf("%s_%d_%d_%d", rootChain, number, startBlock, endBlock)
}

func (hl *HeimdallListener) sendBlockTask(taskName string, eventBytes []byte, blockHeight int64) {
// create machinery task
signature := &tasks.Signature{
Expand Down
21 changes: 12 additions & 9 deletions helper/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -96,9 +96,10 @@ const (
DefaultBscBusyLimitTxs = 1000
DefaultTronBusyLimitTxs = 20000

DefaultEthMaxQueryBlocks = 100
DefaultBscMaxQueryBlocks = 5
DefaultTronMaxQueryBlocks = 5
DefaultEthMaxQueryBlocks = 100
DefaultBscMaxQueryBlocks = 5
DefaultTronMaxQueryBlocks = 5
DefaultHeimdallMaxQueryBlocks = 1000

DefaultBttcChainID string = "15001"
DefaultEnableIncreaseGasPrice = false
Expand Down Expand Up @@ -166,9 +167,10 @@ type Configuration struct {
BscUnconfirmedTxsBusyLimit int `mapstructure:"bsc_unconfirmed_txs_busy_limit"` // the busy limit of unconfirmed txs on heimdall for bsc
TronUnconfirmedTxsBusyLimit int `mapstructure:"tron_unconfirmed_txs_busy_limit"` // the busy limit of unconfirmed txs on heimdall for tron

EthMaxQueryBlocks int64 `mapstructure:"eth_max_query_blocks"` // eth max number of blocks in one query logs
BscMaxQueryBlocks int64 `mapstructure:"bsc_max_query_blocks"` // bsc max number of blocks in one query logs
TronMaxQueryBlocks int64 `mapstructure:"tron_max_query_blocks"` // tron max number of blocks in one query logs
EthMaxQueryBlocks int64 `mapstructure:"eth_max_query_blocks"` // eth max number of blocks in one query logs
BscMaxQueryBlocks int64 `mapstructure:"bsc_max_query_blocks"` // bsc max number of blocks in one query logs
TronMaxQueryBlocks int64 `mapstructure:"tron_max_query_blocks"` // tron max number of blocks in one query logs
HeimdallMaxQueryBlocks int64 `mapstructure:"heimdall_max_query_blocks"` // heimdall max number of blocks in one query logs

EnableIncreaseGasPrice bool `mapstructure:"enable_increase_gas_price"` // whether enable increase gas price when submit checkpoint to eth
GasPriceIncreasePercent int64 `mapstructure:"gas_price_increase_percent"` // the increase percent of gas price when submit tx. newGasPrice = oldGasPrice * (100 + GasPriceIncreasePercent) / 100
Expand Down Expand Up @@ -330,9 +332,10 @@ func GetDefaultHeimdallConfig() Configuration {
BscUnconfirmedTxsBusyLimit: DefaultBscBusyLimitTxs,
TronUnconfirmedTxsBusyLimit: DefaultTronBusyLimitTxs,

EthMaxQueryBlocks: DefaultEthMaxQueryBlocks,
BscMaxQueryBlocks: DefaultBscMaxQueryBlocks,
TronMaxQueryBlocks: DefaultTronMaxQueryBlocks,
EthMaxQueryBlocks: DefaultEthMaxQueryBlocks,
BscMaxQueryBlocks: DefaultBscMaxQueryBlocks,
TronMaxQueryBlocks: DefaultTronMaxQueryBlocks,
HeimdallMaxQueryBlocks: DefaultHeimdallMaxQueryBlocks,

EnableIncreaseGasPrice: DefaultEnableIncreaseGasPrice,
GasPriceIncreasePercent: DefaultGasPriceIncreasePercent,
Expand Down
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