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DownloadAction

zebrad::components::inbound::downloads

Enum DownloadAction 

Source 
pub enum DownloadAction {
    AddedToQueue,
    AlreadyQueued,
    FullQueue,
    TooManyFromPeer,
}
Expand description

The action taken in response to a peer’s gossiped block hash.

Variants§

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AddedToQueue

The block hash was successfully queued for download and verification.

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AlreadyQueued

The block hash is already queued, so this request was ignored.

Another peer has already gossiped the same hash to us.

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FullQueue

The queue is at capacity, so this request was ignored.

The sync service should discover this block later, when we are closer to the tip. The queue’s capacity is Downloads::full_verify_concurrency_limit.

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TooManyFromPeer

The advertising peer’s IP already has an in-flight download, so this request was ignored. Zcash’s post-Blossom target block spacing is 75 seconds, so honest peers rarely gossip more than one block before the first is verified; during reorgs or recovery the same hash also arrives from other peers or via the syncer.

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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte

Size for each variant:

  • AddedToQueue: 0 bytes
  • AlreadyQueued: 0 bytes
  • FullQueue: 0 bytes
  • TooManyFromPeer: 0 bytes