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https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-24 20:47:16 +00:00
eth/downloader: always reenter processing if not exiting
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parent
2f4cbe22f5
commit
55dd8fd621
@ -48,7 +48,6 @@ var (
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errCrossCheckFailed = errors.New("block cross-check failed")
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errCancelHashFetch = errors.New("hash fetching canceled (requested)")
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errCancelBlockFetch = errors.New("block downloading canceled (requested)")
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errCancelChainImport = errors.New("chain importing canceled (requested)")
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errNoSyncActive = errors.New("no sync active")
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)
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@ -719,7 +718,7 @@ func (d *Downloader) banBlocks(peerId string, head common.Hash) error {
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// between these state changes, a block may have arrived, but a processing
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// attempt denied, so we need to re-enter to ensure the block isn't left
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// to idle in the cache.
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func (d *Downloader) process() (err error) {
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func (d *Downloader) process() {
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// Make sure only one goroutine is ever allowed to process blocks at once
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if !atomic.CompareAndSwapInt32(&d.processing, 0, 1) {
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return
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@ -729,8 +728,8 @@ func (d *Downloader) process() (err error) {
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// the fresh blocks might have been rejected entry to to this present thread
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// not yet releasing the `processing` state.
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defer func() {
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if err == nil && d.queue.GetHeadBlock() != nil {
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err = d.process()
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if atomic.LoadInt32(&d.interrupt) == 0 && d.queue.GetHeadBlock() != nil {
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d.process()
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}
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}()
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// Release the lock upon exit (note, before checking for reentry!), and set
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@ -748,7 +747,7 @@ func (d *Downloader) process() (err error) {
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// Fetch the next batch of blocks
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blocks := d.queue.TakeBlocks()
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if len(blocks) == 0 {
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return nil
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return
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}
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// Reset the import statistics
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d.importLock.Lock()
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@ -762,7 +761,7 @@ func (d *Downloader) process() (err error) {
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for len(blocks) != 0 {
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// Check for any termination requests
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if atomic.LoadInt32(&d.interrupt) == 1 {
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return errCancelChainImport
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return
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}
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// Retrieve the first batch of blocks to insert
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max := int(math.Min(float64(len(blocks)), float64(maxBlockProcess)))
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@ -776,7 +775,7 @@ func (d *Downloader) process() (err error) {
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glog.V(logger.Debug).Infof("Block #%d import failed: %v", raw[index].NumberU64(), err)
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d.dropPeer(blocks[index].OriginPeer)
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d.cancel()
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return errCancelChainImport
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return
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}
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blocks = blocks[max:]
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}
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@ -764,7 +764,6 @@ func TestHashAttackerDropping(t *testing.T) {
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{errCrossCheckFailed, true}, // Hash-origin failed to pass a block cross check, drop
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{errCancelHashFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
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{errCancelBlockFetch, false}, // Synchronisation was canceled, origin may be innocent, don't drop
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{errCancelChainImport, false}, // Synchronisation was canceled, origin may be innocent, don't drop
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}
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// Run the tests and check disconnection status
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tester := newTester()
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