grassrootseconomics/openethereum
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experiment with answering requests

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This commit is contained in:
Robert Habermeier 2016-11-04 23:50:56 +01:00
parent c1a6dbe75f
commit 52abbc0643
2 changed files with 20 additions and 9 deletions
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26
ethcore/light/src/net/mod.rs
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@ -29,7 +29,7 @@ use std::collections::{HashMap, HashSet};
use std::sync::atomic::{AtomicUsize, Ordering}; use std::sync::atomic::{AtomicUsize, Ordering};
use provider::Provider; use provider::Provider;
use request::Request; use request::{self, Request};
const TIMEOUT: TimerToken = 0; const TIMEOUT: TimerToken = 0;
const TIMEOUT_INTERVAL_MS: u64 = 1000; const TIMEOUT_INTERVAL_MS: u64 = 1000;
@ -206,16 +206,28 @@ impl LightProtocol {
// Handle a request for block headers. // Handle a request for block headers.
fn get_block_headers(&self, peer: &PeerId, io: &NetworkContext, data: UntrustedRlp) { fn get_block_headers(&self, peer: &PeerId, io: &NetworkContext, data: UntrustedRlp) {
const MAX_HEADERS: usize = 512; const MAX_HEADERS: u64 = 512;
let req_id: u64 = try_dc!(io, *peer, data.val_at(0)); let req_id: u64 = try_dc!(io, *peer, data.val_at(0));
let block: (u64, H256) = try_dc!(io, *peer, data.at(1).and_then(|block_list| { let req = request::Headers {
block: try_dc!(io, *peer, data.at(1).and_then(|block_list| {
Ok((try!(block_list.val_at(0)), try!(block_list.val_at(1)))) Ok((try!(block_list.val_at(0)), try!(block_list.val_at(1))))
})); })),
let max = ::std::cmp::min(MAX_HEADERS, try_dc!(io, *peer, data.val_at(2))); max: ::std::cmp::min(MAX_HEADERS, try_dc!(io, *peer, data.val_at(2))),
let reverse: bool = try_dc!(io, *peer, data.val_at(3)); skip: try_dc!(io, *peer, data.val_at(3)),
reverse: try_dc!(io, *peer, data.val_at(4)),
};
unimplemented!() let res = self.provider.block_headers(req);
let mut res_stream = RlpStream::new_list(2 + res.len());
res_stream.append(&req_id);
res_stream.append(&0u64); // TODO: Buffer Flow.
for raw_header in res {
res_stream.append_raw(&raw_header, 1);
}
try_dc!(io, *peer, io.respond(packet::BLOCK_HEADERS, res_stream.out()))
} }
// Receive a response for block headers. // Receive a response for block headers.

1
ethcore/light/src/provider.rs
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@ -20,7 +20,6 @@
use ethcore::transaction::SignedTransaction; use ethcore::transaction::SignedTransaction;
use ethcore::blockchain_info::BlockChainInfo; use ethcore::blockchain_info::BlockChainInfo;
use util::Bytes; use util::Bytes;
use util::hash::H256;
use request; use request;