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blockmanager: only check if current once handling inv's

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This saves two additional calls to chain.IsCurrent().
This commit is contained in:
David Hill 2019-02-16 14:31:23 -05:00 committed by Dave Collins
parent 6dbd89322c
commit 4e7f080b7b
1 changed files with 6 additions and 3 deletions
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9
blockmanager.go
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@ -1290,24 +1290,27 @@ func (b *blockManager) handleInvMsg(imsg *invMsg) {
}
}
fromSyncPeer := imsg.peer == b.syncPeer
isCurrent := b.current()
// If this inv contains a block announcement, and this isn't coming from
// our current sync peer or we're current, then update the last
// announced block for this peer. We'll use this information later to
// update the heights of peers based on blocks we've accepted that they
// previously announced.
if lastBlock != -1 && (imsg.peer != b.syncPeer || b.current()) {
if lastBlock != -1 && (!fromSyncPeer || isCurrent) {
imsg.peer.UpdateLastAnnouncedBlock(&invVects[lastBlock].Hash)
}
// Ignore invs from peers that aren't the sync if we are not current.
// Helps prevent fetching a mass of orphans.
if imsg.peer != b.syncPeer && !b.current() {
if !fromSyncPeer && !isCurrent {
return
}
// If our chain is current and a peer announces a block we already
// know of, then update their current block height.
if lastBlock != -1 && b.current() {
if lastBlock != -1 && isCurrent {
blkHeight, err := b.chain.BlockHeightByHash(&invVects[lastBlock].Hash)
if err == nil {