The syncer downloads and verifies large numbers of blocks from peers to Zebra.
It is used when Zebra is a long way behind the current chain tip.
A download stream for Zebra’s block syncer.
A channel which holds a list of recent syncer response lengths.
Helps work around defects in the bitcoin protocol by checking whether the returned hashes actually extend a chain tip.
A helper type which holds a list of recent syncer response lengths. These sync lengths can be used to work out if Zebra has reached the end of the chain.
A helper type to determine if the synchronizer has likely reached the chain tip.
Errors that can occur when gossiping committed blocks
Controls how many times we will retry each block download.
Controls how long we wait for a block download request to complete.
Controls how long we wait for a block verify request to complete.
The default for the user-specified lookahead limit.
Controls the number of peers used for each ObtainTips and ExtendTips request.
Controls how long we wait to retry a failed attempt to download and verify the genesis block.
The expected maximum number of hashes in an ObtainTips or ExtendTips response.
A lower bound on the user-specified lookahead limit.
Controls how long we wait to restart syncing after finishing a sync run.
Controls how long we wait for a tips response to return.