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optimize back-reference filling

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This commit is contained in:
Robert Habermeier 2017-05-12 17:25:02 +02:00
parent 2d87f562f6
commit 909f3d76d8
2 changed files with 14 additions and 3 deletions
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4
ethcore/light/src/on_demand/mod.rs
View File

@ -481,7 +481,7 @@ impl Handler for OnDemand {
// for each incoming response
// 1. ensure verification data filled. (still TODO since on_demand doesn't use back-references yet)
// 2. pending.requests.supply_response
// 3. if extracted on-demand response
// 3. if extracted on-demand response, keep it for later.
for response in responses {
match pending.requests.supply_response(&*self.cache, response) {
Ok(response) => {
@ -497,12 +497,14 @@ impl Handler for OnDemand {
}
}
pending.requests.fill_unanswered();
if pending.requests.is_complete() {
let _ = pending.sender.send(pending.responses);
return;
}
// update network requests (unless we're done, in which case fulfill the future.)
let mut builder = basic_request::RequestBuilder::default();
let num_answered = pending.requests.num_answered();

13
ethcore/light/src/types/request/builder.rs
View File

@ -115,6 +115,15 @@ impl<T: IncompleteRequest + Clone> Requests<T> {
.expect("All outputs checked as invariant of `Requests` object; qed"))
}
}
/// Sweep through all unanswered requests, filling them as necessary.
pub fn fill_unanswered(&mut self) {
let outputs = &mut self.outputs;
for req in self.requests.iter_mut().skip(self.answered) {
req.fill(|req_idx, out_idx| outputs.get(&(req_idx, out_idx)).cloned().ok_or(NoSuchOutput))
}
}
}
impl<T: super::CheckedRequest> Requests<T> {
@ -141,8 +150,8 @@ impl<T: super::CheckedRequest> Requests<T> {
self.answered += 1;
// fill as much of each remaining request as we can.
for req in self.requests.iter_mut().skip(self.answered) {
// fill as much of the next request as we can.
if let Some(ref mut req) = self.requests.get_mut(self.answered) {
req.fill(|req_idx, out_idx| outputs.get(&(req_idx, out_idx)).cloned().ok_or(NoSuchOutput))
}