80 lines
2.7 KiB
Go
80 lines
2.7 KiB
Go
// This file will call all the functions to start and stop capturing the head of the beacon chain.
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package beaconclient
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import (
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"time"
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log "github.com/sirupsen/logrus"
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"github.com/vulcanize/ipld-ethcl-indexer/pkg/database/sql"
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"github.com/vulcanize/ipld-ethcl-indexer/pkg/loghelper"
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)
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// This function will perform all the heavy lifting for tracking the head of the chain.
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func (bc *BeaconClient) CaptureHead(db sql.Database) {
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log.Info("We are tracking the head of the chain.")
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//bc.tempHelper()
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go bc.handleHead(db)
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//go bc.handleFinalizedCheckpoint()
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go bc.handleReorgs()
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bc.captureEventTopic()
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}
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// A temporary helper function to see the output of beacon block and states.
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//func (bc *BeaconClient) tempHelper() {
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// slot := "3200"
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// blockEndpoint := bc.ServerEndpoint + bcBlockQueryEndpoint + slot
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// stateEndpoint := bc.ServerEndpoint + bcStateQueryEndpoint + slot
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// // Query
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// log.Info("Get")
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// blockSsz, _ := querySsz(blockEndpoint, slot)
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// stateSsz, _ := querySsz(stateEndpoint, slot)
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// // Transform
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// log.Info("Tranform")
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// stateObj := new(spectests.BeaconState)
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// err := stateObj.UnmarshalSSZ(stateSsz)
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// if err != nil {
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// loghelper.LogSlotError(slot, err).Error("Unable to unmarshal the SSZ response from the Beacon Node Successfully!")
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// }
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//
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// blockObj := new(spectests.SignedBeaconBlock)
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// err = blockObj.UnmarshalSSZ(blockSsz)
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// if err != nil {
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// loghelper.LogSlotError(slot, err).Error("Unable to unmarshal the SSZ response from the Beacon Node Successfully!")
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// }
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//
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// // Check
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// log.Info("Check")
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// log.Info("State Slot: ", stateObj.Slot)
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// log.Info("Block Slot: ", blockObj.Block.Slot)
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//}
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//
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// Stop the head tracking service.
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func (bc *BeaconClient) StopHeadTracking() error {
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log.Info("We are going to stop tracking the head of chain because of the shutdown signal.")
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chHead := make(chan bool)
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chReorg := make(chan bool)
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//chFinal := make(chan bool)
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go bc.HeadTracking.finishProcessingChannel(chHead)
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go bc.ReOrgTracking.finishProcessingChannel(chReorg)
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//go bc.FinalizationTracking.finishProcessingChannel(chFinal)
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<-chHead
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//<-chFinal
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<-chReorg
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log.Info("Successfully stopped the head tracking service.")
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return nil
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}
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// This function closes the SSE subscription, but waits until the MessagesCh is empty
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func (se *SseEvents[ProcessedEvents]) finishProcessingChannel(finish chan<- bool) {
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loghelper.LogEndpoint(se.Endpoint).Info("Received a close event.")
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se.SseClient.Unsubscribe(se.MessagesCh)
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for len(se.MessagesCh) != 0 || len(se.ProcessCh) != 0 {
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time.Sleep(time.Duration(shutdownWaitInterval) * time.Millisecond)
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}
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loghelper.LogEndpoint(se.Endpoint).Info("Done processing all messages, ready for shutdown")
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finish <- true
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}
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