/
syncer_delta.go
139 lines (117 loc) · 4.2 KB
/
syncer_delta.go
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package warpy_sync
import (
"context"
"encoding/hex"
"errors"
"strings"
"sync"
"github.com/cenkalti/backoff"
"github.com/ethereum/go-ethereum/core/types"
"github.com/warp-contracts/syncer/src/utils/config"
"github.com/warp-contracts/syncer/src/utils/eth"
"github.com/warp-contracts/syncer/src/utils/monitoring"
"github.com/warp-contracts/syncer/src/utils/task"
)
type SyncerDelta struct {
*task.Task
monitor monitoring.Monitor
input chan *BlockInfoPayload
Output chan *LastSyncedBlockPayload
OutputInteractionPayload chan *[]InteractionPayload
}
// This task receives block info in the input channel, iterate through all of the block's transactions in order to check if any of it contains
// Redstone data and if so - writes an interaction to Warpy. It emits block height and block hash in the Output channel
func NewSyncerDelta(config *config.Config) (self *SyncerDelta) {
self = new(SyncerDelta)
self.Output = make(chan *LastSyncedBlockPayload)
self.OutputInteractionPayload = make(chan *[]InteractionPayload)
self.Task = task.NewTask(config, "syncer").
WithSubtaskFunc(self.run).
WithWorkerPool(config.WarpySyncer.SyncerDeltaNumWorkers, config.WarpySyncer.SyncerDeltaWorkerQueueSize)
return
}
func (self *SyncerDelta) WithInputChannel(v chan *BlockInfoPayload) *SyncerDelta {
self.input = v
return self
}
func (self *SyncerDelta) WithMonitor(monitor monitoring.Monitor) *SyncerDelta {
self.monitor = monitor
return self
}
func (self *SyncerDelta) run() (err error) {
for block := range self.input {
self.Log.WithField("height", block.Height).Trace("Checking transactions for block")
var wg sync.WaitGroup
wg.Add(len(block.Transactions))
for _, tx := range block.Transactions {
tx := tx
block := block
self.SubmitToWorker(func() {
err := self.checkTxAndWriteInteraction(tx, block)
if err != nil {
self.Log.WithError(err).WithField("txId", tx.Hash()).WithField("height", block.Height).
Error("Could not process transaction")
self.monitor.GetReport().WarpySyncer.Errors.SyncerDeltaProcessTxPermanentError.Inc()
goto end
}
self.monitor.GetReport().WarpySyncer.State.SyncerDeltaTxsProcessed.Inc()
end:
wg.Done()
})
}
wg.Wait()
select {
case <-self.Ctx.Done():
return nil
case self.Output <- &LastSyncedBlockPayload{
Height: block.Height,
Hash: block.Hash,
Timestamp: block.Timestamp,
}:
}
self.monitor.GetReport().WarpySyncer.State.SyncerDeltaBlocksProcessed.Inc()
}
return
}
func (self *SyncerDelta) checkTxAndWriteInteraction(tx *types.Transaction, block *BlockInfoPayload) (err error) {
err = task.NewRetry().
WithContext(self.Ctx).
// Retries infinitely until success
WithMaxElapsedTime(0).
WithMaxInterval(self.Config.WarpySyncer.SyncerDeltaBackoffInterval).
WithAcceptableDuration(self.Config.WarpySyncer.SyncerDeltaBackoffInterval * 2).
WithOnError(func(err error, isDurationAcceptable bool) error {
if errors.Is(err, context.Canceled) && self.IsStopping.Load() {
return backoff.Permanent(err)
}
self.monitor.GetReport().WarpySyncer.Errors.SyncerDeltaCheckTxFailures.Inc()
self.Log.WithError(err).WithField("txId", tx.Hash()).WithField("height", block.Height).
Warn("Could not process transaction, retrying...")
return err
}).
Run(func() error {
txContainsRedstoneData := self.checkTxForData(tx, self.Config.WarpySyncer.SyncerDeltaRedstoneData, self.Ctx)
if txContainsRedstoneData {
self.Log.WithField("txId", tx.Hash()).WithField("height", block.Height).Info("Found new Redstone tx")
sender, err := eth.GetTxSenderHash(tx)
if err != nil {
self.Log.WithError(err).WithField("txId", tx.Hash()).Warn("Could not retrieve tx sender")
return err
}
self.OutputInteractionPayload <- &[]InteractionPayload{{
FromAddress: sender,
Points: self.Config.WarpySyncer.SyncerDeltaInteractionPoints,
}}
}
return err
})
return
}
func (self *SyncerDelta) checkTxForData(tx *types.Transaction, data string, ctx context.Context) (txContainsData bool) {
txContainsData = false
encodedString := hex.EncodeToString(tx.Data())
if strings.Contains(encodedString, data) {
txContainsData = true
}
return
}