Function one_round

pub fn one_round(
    negotiator: &mut dyn Negotiator,
    graph: &mut Graph<'_, '_>,
    state: &mut State,
    arguments: &mut Arguments,
    previous_response: Option<&Response>,
) -> Result<(Round, bool), Error>

Available on crate feature fetch only.

Prepare to negotiate a single round in the process of letting the remote know what we have, and have in common.

Note that this function only configures arguments, no IO is performed.

The operation is performed with negotiator and graph, sending the amount of haves_to_send after possibly making the common commits (as sent by the remote) known to negotiator using previous_response, if this isn’t the first round. All commits we have are added to arguments accordingly.

Returns information about this round, and true if we are done and should stop negotiating after the arguments have been sent to the remote one last time.