tornadocontrib/web3-proxy
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This commit is contained in:
Bryan Stitt 2022-05-18 20:28:00 +00:00
parent 7a3a3271bb
commit bc706d1c98
4 changed files with 26 additions and 30 deletions
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6
web3-proxy/src/config.rs
View File

@ -13,15 +13,15 @@ use crate::Web3ProxyApp;
pub struct CliConfig {
/// what port the proxy should listen on
#[argh(option, default = "8544")]
pub listen_port: u16,
pub port: u16,
/// number of worker threads
#[argh(option, default = "0")]
pub worker_threads: usize,
pub workers: usize,
/// path to a toml of rpc servers
#[argh(option, default = "\"./config/example.toml\".to_string()")]
pub rpc_config_path: String,
pub config: String,
}
#[derive(Deserialize)]

5
web3-proxy/src/connection.rs
View File

@ -195,11 +195,6 @@ impl Web3Connection {
self.soft_limit
}
#[inline]
pub fn url(&self) -> &str {
&self.url
}
#[instrument(skip_all)]
async fn send_block(
self: &Arc<Self>,

35
web3-proxy/src/connections.rs
View File

@ -7,6 +7,7 @@ use futures::stream::FuturesUnordered;
use futures::StreamExt;
use governor::clock::{QuantaClock, QuantaInstant};
use governor::NotUntil;
use hashbrown::HashMap;
use serde_json::value::RawValue;
use std::cmp;
use std::fmt;
@ -219,11 +220,10 @@ impl Web3Connections {
) -> anyhow::Result<()> {
let max_connections = self.inner.len();
let mut connection_states: Vec<(u64, H256)> = Vec::with_capacity(max_connections);
let mut head_block_hash = H256::zero();
let mut head_block_num = 0u64;
let mut connection_states: HashMap<usize, (u64, H256)> =
HashMap::with_capacity(max_connections);
let mut synced_connections = SyncedConnections::new(max_connections);
let mut pending_synced_connections = SyncedConnections::new(max_connections);
while let Ok((new_block_num, new_block_hash, rpc_id)) = block_receiver.recv_async().await {
if new_block_num == 0 {
@ -238,37 +238,38 @@ impl Web3Connections {
connection_states.insert(rpc_id, (new_block_num, new_block_hash));
// TODO: do something to update the synced blocks
match new_block_num.cmp(&head_block_num) {
match new_block_num.cmp(&pending_synced_connections.head_block_num) {
cmp::Ordering::Greater => {
// the rpc's newest block is the new overall best block
info!("new head from #{}", rpc_id);
synced_connections.inner.clear();
synced_connections.inner.push(rpc_id);
pending_synced_connections.inner.clear();
pending_synced_connections.inner.push(rpc_id);
head_block_num = new_block_num;
head_block_hash = new_block_hash;
pending_synced_connections.head_block_num = new_block_num;
pending_synced_connections.head_block_hash = new_block_hash;
}
cmp::Ordering::Equal => {
if new_block_hash != head_block_hash {
if new_block_hash != pending_synced_connections.head_block_hash {
// same height, but different chain
// TODO: anything else we should do? set some "nextSafeBlockHeight" to delay sending transactions?
// TODO: sometimes a node changes its block. if that happens, a new block is probably right behind this one
warn!(
"chain is forked at #{}! {} has {}. {} rpcs have {}",
"chain is forked at #{}! #{} has {}. {} rpcs have {}",
new_block_num,
rpc_id,
new_block_hash,
synced_connections.inner.len(),
head_block_hash
pending_synced_connections.inner.len(),
pending_synced_connections.head_block_hash
);
// TODO: don't continue. check to see which head block is more popular!
// TODO: don't continue. check connection_states to see which head block is more popular!
continue;
}
// do not clear synced_connections.
// we just want to add this rpc to the end
synced_connections.inner.push(rpc_id);
// TODO: HashSet here? i think we get dupes if we don't
pending_synced_connections.inner.push(rpc_id);
}
cmp::Ordering::Less => {
// this isn't the best block in the tier. don't do anything
@ -277,11 +278,11 @@ impl Web3Connections {
}
// the synced connections have changed
let new_data = Arc::new(synced_connections.clone());
let synced_connections = Arc::new(pending_synced_connections.clone());
// TODO: only do this if there are 2 nodes synced to this block?
// do the arcswap
self.synced_connections.swap(new_data);
self.synced_connections.swap(synced_connections);
}
// TODO: if there was an error, we should return it

10
web3-proxy/src/main.rs
View File

@ -34,8 +34,8 @@ fn main() -> anyhow::Result<()> {
let cli_config: CliConfig = argh::from_env();
info!("Loading rpc config @ {}", cli_config.rpc_config_path);
let rpc_config: String = fs::read_to_string(cli_config.rpc_config_path)?;
info!("Loading rpc config @ {}", cli_config.config);
let rpc_config: String = fs::read_to_string(cli_config.config)?;
let rpc_config: RpcConfig = toml::from_str(&rpc_config)?;
// TODO: this doesn't seem to do anything
@ -54,8 +54,8 @@ fn main() -> anyhow::Result<()> {
format!("web3-{}-{}", chain_id, worker_id)
});
if cli_config.worker_threads > 0 {
rt_builder.worker_threads(cli_config.worker_threads);
if cli_config.workers > 0 {
rt_builder.worker_threads(cli_config.workers);
}
let rt = rt_builder.build()?;
@ -80,7 +80,7 @@ fn main() -> anyhow::Result<()> {
// spawn the root task
rt.block_on(async {
let listen_port = cli_config.listen_port;
let listen_port = cli_config.port;
let app = rpc_config.try_build().await?;