[−][src]Trait lightning::chain::chaininterface::ChainListener

pub trait ChainListener: Sync + Send {
    fn block_connected(
        &self, 
        header: &BlockHeader, 
        height: u32, 
        txn_matched: &[&Transaction], 
        indexes_of_txn_matched: &[u32]
    );

    fn block_disconnected(&self, header: &BlockHeader, disconnected_height: u32);
}

A trait indicating a desire to listen for events from the chain

Required methods

fn block_connected(
    &self,
    header: &BlockHeader,
    height: u32,
    txn_matched: &[&Transaction],
    indexes_of_txn_matched: &[u32]
)

Notifies a listener that a block was connected. Note that if a new transaction/outpoint is watched during a block_connected call, the block must be re-scanned with the new transaction/outpoints and block_connected should be called again with the same header and (at least) the new transactions.

Note that if non-new transaction/outpoints may be registered during a call, a second call must not happen.

This also means those counting confirmations using block_connected callbacks should watch for duplicate headers and not count them towards confirmations!

fn block_disconnected(&self, header: &BlockHeader, disconnected_height: u32)

Notifies a listener that a block was disconnected. Unlike block_connected, this must never be called twice for the same disconnect event. Height must be the one of the block which was disconnected (not new height of the best chain)

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Implementors

impl<'a> ChainListener for ChannelManager<'a>[src]

fn block_disconnected(&self, header: &BlockHeader, _: u32)[src]

We force-close the channel without letting our counterparty participate in the shutdown

impl<'a, Key: Send + Eq + Hash> ChainListener for SimpleManyChannelMonitor<Key>[src]

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