Function get_alt_chain_history_ranges

pub fn get_alt_chain_history_ranges(
    range: Range<BlockHeight>,
    alt_chain: ChainId,
    alt_chain_infos: &impl DatabaseRo<AltChainInfos>,
) -> Result<Vec<(Chain, Range<BlockHeight>)>, RuntimeError>

Get the height history of an alt-chain in reverse chronological order.

Height history is a list of height ranges with the corresponding Chain they are stored under. For example if your range goes from height 0 the last entry in the list will be Chain::Main upto the height where the first split occurs.

Errors

This function returns RuntimeError::KeyNotFound if the input (if applicable) doesn’t exist or other RuntimeError’s on database errors.