pub struct RecentSyncLengths { /* private fields */ }
Expand description

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.

New lengths are added to the front of the list. Old lengths are dropped if the list is longer than MAX_RECENT_LENGTHS.

Implementations

The maximum number of lengths sent by RecentSyncLengths.

Older lengths are dropped.

This length was chosen as a tradeoff between:

  • clearing temporary errors and temporary syncs quickly
  • distinguishing between temporary and sustained syncs/errors
  • activating the syncer shortly after reaching the chain tip

Create a new instance of RecentSyncLengths and a [watch::Receiver] endpoint for receiving recent sync lengths.

Insert a sync length from ChainSync::obtain_tips at the front of the list.

Insert a sync length from ChainSync::extend_tips at the front of the list.

Trait Implementations

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