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pr feedback: fix typo, check for ctx cancellation

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This commit is contained in:
Kasey Kirkham
2022-03-02 13:00:18 -06:00
parent 4f554369c5
commit 95acd101d3
1 changed files with 4 additions and 1 deletions
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5
beacon-chain/state/stategen/replayer.go
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@@ -234,6 +234,9 @@ func (r *canonicalChainer) chainForSlot(ctx context.Context, target types.Slot)
// to find the highest canonical block available to replay to the given slot.
func (r *canonicalChainer) canonicalBlockForSlot(ctx context.Context, target types.Slot) ([32]byte, block.SignedBeaconBlock, error) {
for target > 0 {
if ctx.Err() != nil {
return [32]byte{}, nil, errors.Wrap(ctx.Err(), "context canceled during canonicalBlockForSlot")
}
hbs, err := r.h.HighestSlotBlocksBelow(ctx, target+1)
if err != nil {
return [32]byte{}, nil, errors.Wrap(err, fmt.Sprintf("error finding highest block w/ slot <= %d", target))
@@ -295,7 +298,7 @@ func (r *canonicalChainer) bestForSlot(ctx context.Context, hbs []block.SignedBe
}
// ancestorChain works backwards through the chain lineage, accumulating blocks and checking for a saved state
// if it finds a saved state the the tail block was descended from, it returns this state and
// if it finds a saved state the tail block was descended from, it returns this state and
// all blocks in the lineage, including the tail block. blocks are returned in ascending order.
// note that this function assumes that the tail is a canonical block, and therefore assumes that
// all ancestors are also canonical.