ipld-eth-beacon-indexer/pkg/beaconclient/processevents.go
2022-05-16 14:10:43 -04:00

73 lines
2.5 KiB
Go

// This file contains all the functions to handle SSE events after they have been turned
// to the structs.
package beaconclient
import (
"fmt"
"strconv"
log "github.com/sirupsen/logrus"
"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
"golang.org/x/sync/errgroup"
)
// This function will perform the necessary steps to handle a reorg.
func (bc *BeaconClient) handleReorg() {
log.Info("Starting to process reorgs.")
for {
reorg := <-bc.ReOrgTracking.ProcessCh
log.WithFields(log.Fields{"reorg": reorg}).Debug("Received a new reorg message.")
writeReorgs(bc.Db, reorg.Slot, reorg.NewHeadBlock, bc.Metrics)
}
}
// This function will handle the latest head event.
func (bc *BeaconClient) handleHead() {
log.Info("Starting to process head.")
errorSlots := 0
for {
head := <-bc.HeadTracking.ProcessCh
// Process all the work here.
slot, err := strconv.Atoi(head.Slot)
if err != nil {
bc.HeadTracking.ErrorCh <- &SseError{
err: fmt.Errorf("Unable to turn the slot from string to int: %s", head.Slot),
}
errorSlots = errorSlots + 1
continue
}
if errorSlots != 0 && bc.PreviousSlot != 0 {
log.WithFields(log.Fields{
"lastProcessedSlot": bc.PreviousSlot,
"errorMessages": errorSlots,
}).Warn("We added slots to the knownGaps table because we got bad head messages.")
writeKnownGaps(bc.Db, bc.KnownGapTableIncrement, bc.PreviousSlot, bcSlotsPerEpoch+errorSlots, fmt.Errorf("Bad Head Messages"), "headProcessing", bc.Metrics)
}
log.WithFields(log.Fields{"head": head}).Debug("We are going to start processing the slot.")
go func(db sql.Database, serverAddress string, slot int, blockRoot string, stateRoot string, previousSlot int, previousBlockRoot string, metrics *BeaconClientMetrics, knownGapsTableIncrement int) {
errG := new(errgroup.Group)
errG.Go(func() error {
err = processHeadSlot(db, serverAddress, slot, blockRoot, stateRoot, previousSlot, previousBlockRoot, metrics, knownGapsTableIncrement)
if err != nil {
return err
}
return nil
})
if err := errG.Wait(); err != nil {
loghelper.LogSlotError(strconv.Itoa(slot), err).Error("Unable to process a slot")
}
}(bc.Db, bc.ServerEndpoint, slot, head.Block, head.State, bc.PreviousSlot, bc.PreviousBlockRoot, bc.Metrics, bc.KnownGapTableIncrement)
log.WithFields(log.Fields{"head": head.Slot}).Debug("We finished calling processHeadSlot.")
// Update the previous block
bc.PreviousSlot = slot
bc.PreviousBlockRoot = head.Block
}
}