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feat(multiplexer): Allow fine-grained control of concurrency strategy (#106)

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This commit is contained in:
Santiago Carmuega 2022-06-03 21:37:38 -03:00 • committed by GitHub
parent 07fb2ca016
commit e4784f444d
23 changed files with 822 additions and 559 deletions
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27
examples/n2n-miniprotocols/src/main.rs
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@ -2,7 +2,7 @@ use net2::TcpStreamExt;
use pallas::network::{
miniprotocols::{blockfetch, chainsync, handshake, run_agent, Point, MAINNET_MAGIC},
multiplexer::Multiplexer,
multiplexer::{spawn_demuxer, spawn_muxer, use_channel, StdChannel, StdPlexer},
};
use std::net::TcpStream;
@ -54,15 +54,12 @@ impl chainsync::Observer<chainsync::HeaderContent> for LoggingObserver {
}
}
fn do_handshake(muxer: &mut Multiplexer) {
let mut channel = muxer.use_channel(0);
fn do_handshake(mut channel: StdChannel) {
let versions = handshake::n2n::VersionTable::v4_and_above(MAINNET_MAGIC);
let _last = run_agent(handshake::Initiator::initial(versions), &mut channel).unwrap();
}
fn do_blockfetch(muxer: &mut Multiplexer) {
let mut channel = muxer.use_channel(3);
fn do_blockfetch(mut channel: StdChannel) {
let range = (
Point::Specific(
43847831,
@ -84,9 +81,7 @@ fn do_blockfetch(muxer: &mut Multiplexer) {
println!("{:?}", agent);
}
fn do_chainsync(muxer: &mut Multiplexer) {
let mut channel = muxer.use_channel(2);
fn do_chainsync(mut channel: StdChannel) {
let known_points = vec![Point::Specific(
43847831u64,
hex::decode("15b9eeee849dd6386d3770b0745e0450190f7560e5159b1b3ab13b14b2684a45").unwrap(),
@ -116,14 +111,20 @@ fn main() {
// setup the multiplexer by specifying the bearer and the IDs of the
// miniprotocols to use
let mut muxer = Multiplexer::setup(bearer, &[0, 2, 3, 4]).unwrap();
let mut plexer = StdPlexer::new(bearer);
let channel0 = use_channel(&mut plexer, 0);
let channel3 = use_channel(&mut plexer, 3);
let channel2 = use_channel(&mut plexer, 2);
spawn_muxer(plexer.muxer);
spawn_demuxer(plexer.demuxer);
// execute the required handshake against the relay
do_handshake(&mut muxer);
do_handshake(channel0);
// fetch an arbitrary batch of block
do_blockfetch(&mut muxer);
do_blockfetch(channel3);
// execute the chainsync flow from an arbitrary point in the chain
do_chainsync(&mut muxer);
do_chainsync(channel2);
}