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ChainTipSender

zebra_state::service::chain_tip

Struct ChainTipSender 

Source 
pub struct ChainTipSender {
    use_non_finalized_tip: bool,
    sender: Sender<Option<ChainTipBlock>>,
}
Expand description

A sender for changes to the non-finalized and finalized chain tips.

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§use_non_finalized_tip: bool

Have we got any chain tips from the non-finalized state?

Once this flag is set, we ignore the finalized state. None tips don’t set this flag.

§sender: Sender<Option<ChainTipBlock>>

The sender channel for chain tip data.

Implementations§

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impl ChainTipSender

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pub fn new( initial_tip: impl Into<Option<ChainTipBlock>>, network: &Network, ) -> (Self, LatestChainTip, ChainTipChange)

Create new linked instances of ChainTipSender, LatestChainTip, and ChainTipChange, using an initial_tip and a Network.

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pub fn finalized_sender(&self) -> Self

Returns a clone of itself for sending finalized tip changes, used by TrustedChainSync in zebra-rpc.

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pub fn set_finalized_tip( &mut self, new_tip: impl Into<Option<ChainTipBlock>> + Clone, )

Update the latest finalized tip.

May trigger an update to the best tip.

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pub fn set_best_non_finalized_tip( &mut self, new_tip: impl Into<Option<ChainTipBlock>> + Clone, )

Update the latest non-finalized tip.

May trigger an update to the best tip.

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fn update(&mut self, new_tip: Option<ChainTipBlock>)

Possibly send an update to listeners.

An update is only sent if the current best tip is different from the last best tip that was sent.

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fn record_new_tip(new_tip: &Option<ChainTipBlock>)

Record new_tip in the current span.

Callers should create a new span with empty new_height and new_hash fields.

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fn record_fields(&self, new_tip: &Option<ChainTipBlock>)

Record new_tip and the fields from self in the current span.

The fields recorded are:

  • new_height
  • new_hash
  • old_height
  • old_hash
  • old_use_non_finalized_tip

Callers should create a new span with the empty fields described above.

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fn record_tip(span: &Span, prefix: &str, tip: &Option<ChainTipBlock>)

Record tip into span using the prefix to name the fields.

Callers should create a new span with empty {prefix}_height and {prefix}_hash fields.

Trait Implementations§

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impl Debug for ChainTipSender

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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Size: 16 bytes