Remove syncpool.go (#594)

geth/node/syncpoll.go

@@ -1,81 +0,0 @@
-package node
-
-import (
-	"context"
-	"errors"
-	"time"
-
-	"github.com/ethereum/go-ethereum/eth/downloader"
-	"github.com/ethereum/go-ethereum/les"
-	"github.com/status-im/status-go/geth/log"
-)
-
-// errors
-var (
-	ErrStartAborted = errors.New("node synchronization timeout before starting")
-	ErrSyncAborted  = errors.New("node synchronization timeout before completion")
-)
-
-// SyncPoll provides a structure that allows us to check the status of
-// ethereum node synchronization.
-type SyncPoll struct {
-	downloader *downloader.Downloader
-}
-
-// NewSyncPoll returns a new instance of SyncPoll.
-func NewSyncPoll(leth *les.LightEthereum) *SyncPoll {
-	return &SyncPoll{
-		downloader: leth.Downloader(),
-	}
-}
-
-// Poll checks for the status of blockchain synchronization and returns an error
-// if the blockchain failed to start synchronizing or fails to complete, within
-// the time provided by the passed in context.
-func (n *SyncPoll) Poll(ctx context.Context) error {
-	if err := n.pollSyncStart(ctx); err != nil {
-		return err
-	}
-
-	if err := n.waitSyncCompleted(ctx); err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (n *SyncPoll) pollSyncStart(ctx context.Context) error {
-	for {
-		select {
-		case <-ctx.Done():
-			return ErrStartAborted
-		case <-time.After(100 * time.Millisecond):
-			if n.downloader.Synchronising() {
-				log.Info("Block synchronization progress just started")
-				return nil
-			}
-		}
-	}
-}
-
-func (n *SyncPoll) waitSyncCompleted(ctx context.Context) error {
-	for {
-		select {
-		case <-ctx.Done():
-			return ErrSyncAborted
-		case <-time.After(100 * time.Millisecond):
-			progress := n.downloader.Progress()
-
-			// If information on highest block has not being retrieved then wait.
-			if progress.HighestBlock <= 0 && progress.StartingBlock <= 0 {
-				time.Sleep(300 * time.Millisecond)
-				continue
-			}
-
-			if progress.CurrentBlock >= progress.HighestBlock {
-				log.Info("Block synchronization just finished")
-				return nil
-			}
-		}
-	}
-}