mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-25 21:07:18 +00:00
50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
package sync
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import (
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"context"
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"encoding/base64"
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"time"
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"github.com/gogo/protobuf/proto"
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"github.com/karlseguin/ccache"
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"github.com/prysmaticlabs/go-ssz"
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"github.com/prysmaticlabs/prysm/beacon-chain/core/helpers"
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ethpb "github.com/prysmaticlabs/prysm/proto/eth/v1alpha1"
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"github.com/prysmaticlabs/prysm/shared/bytesutil"
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)
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// pendingBlocks cache.
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// TODO(3147): This cache value should represent a doubly linked list or some management to
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// process pending blocks after a link to the canonical chain is found.
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var pendingBlocks = ccache.New(ccache.Configure())
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func (r *RegularSync) beaconBlockSubscriber(ctx context.Context, msg proto.Message) error {
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block := msg.(*ethpb.BeaconBlock)
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headState := r.chain.HeadState()
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// Ignore block older than last finalized checkpoint.
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if block.Slot < helpers.StartSlot(headState.FinalizedCheckpoint.Epoch) {
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log.Debugf("Received a block that's older than finalized checkpoint, %d < %d",
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block.Slot, helpers.StartSlot(headState.FinalizedCheckpoint.Epoch))
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return nil
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}
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// Handle block when the parent is unknown.
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if !r.db.HasBlock(ctx, bytesutil.ToBytes32(block.ParentRoot)) {
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blockRoot, err := ssz.SigningRoot(block)
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if err != nil {
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return err
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}
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b64BlockRoot := base64.StdEncoding.EncodeToString(blockRoot[:])
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pendingBlocks.Set(b64BlockRoot, block, 2*time.Hour)
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// TODO(3147): Request parent block from peers
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log.Warnf("Received a block from slot %d which we do not have the parent block in the database. "+
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"Requesting missing blocks from peers is not yet implemented.", block.Slot)
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return nil
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}
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return r.chain.ReceiveBlockNoPubsub(ctx, block)
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}
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