Move RequestProcessor into its own module
This commit is contained in:
Greg Fitzgerald
parent
e5d46d998b
commit
aec05ef602
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@ -4,7 +4,7 @@ use accountant::Accountant;
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use entry::Entry;
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use ledger;
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use packet;
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use request_stage::RequestProcessor;
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use request_processor::RequestProcessor;
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use result::Result;
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use serde_json;
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use std::collections::VecDeque;
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@ -17,6 +17,7 @@ pub mod packet;
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pub mod plan;
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pub mod recorder;
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pub mod request;
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pub mod request_processor;
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pub mod request_stage;
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pub mod result;
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pub mod rpu;
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@ -1,237 +1,15 @@
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//! The `request_stage` processes thin client Request messages.
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use accountant::Accountant;
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use bincode::{deserialize, serialize};
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use entry::Entry;
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use event::Event;
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use event_processor::EventProcessor;
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use packet;
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use packet::SharedPackets;
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use rayon::prelude::*;
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use request::{EntryInfo, Request, Response, Subscription};
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use result::Result;
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use std::collections::VecDeque;
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use std::net::{SocketAddr, UdpSocket};
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use request_processor::RequestProcessor;
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use std::sync::Arc;
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use std::sync::atomic::{AtomicBool, Ordering};
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use std::sync::mpsc::{channel, Receiver, Sender};
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use std::sync::{Arc, Mutex};
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use std::sync::mpsc::{channel, Receiver};
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use std::thread::{spawn, JoinHandle};
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use std::time::Duration;
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use std::time::Instant;
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use streamer;
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use timing;
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pub struct RequestProcessor {
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accountant: Arc<Accountant>,
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entry_info_subscribers: Mutex<Vec<SocketAddr>>,
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}
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impl RequestProcessor {
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/// Create a new Tpu that wraps the given Accountant.
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pub fn new(accountant: Arc<Accountant>) -> Self {
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RequestProcessor {
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accountant,
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entry_info_subscribers: Mutex::new(vec![]),
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}
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}
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/// Process Request items sent by clients.
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fn process_request(
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&self,
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msg: Request,
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rsp_addr: SocketAddr,
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) -> Option<(Response, SocketAddr)> {
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match msg {
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Request::GetBalance { key } => {
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let val = self.accountant.get_balance(&key);
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let rsp = (Response::Balance { key, val }, rsp_addr);
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info!("Response::Balance {:?}", rsp);
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Some(rsp)
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}
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Request::Transaction(_) => unreachable!(),
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Request::Subscribe { subscriptions } => {
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for subscription in subscriptions {
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match subscription {
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Subscription::EntryInfo => {
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self.entry_info_subscribers.lock().unwrap().push(rsp_addr)
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}
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}
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}
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None
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}
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}
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}
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pub fn process_requests(
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&self,
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reqs: Vec<(Request, SocketAddr)>,
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) -> Vec<(Response, SocketAddr)> {
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reqs.into_iter()
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.filter_map(|(req, rsp_addr)| self.process_request(req, rsp_addr))
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.collect()
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}
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pub fn notify_entry_info_subscribers(&self, entry: &Entry) {
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// TODO: No need to bind().
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let socket = UdpSocket::bind("0.0.0.0:0").expect("bind");
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// copy subscribers to avoid taking lock while doing io
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let addrs = self.entry_info_subscribers.lock().unwrap().clone();
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trace!("Sending to {} addrs", addrs.len());
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for addr in addrs {
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let entry_info = EntryInfo {
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id: entry.id,
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num_hashes: entry.num_hashes,
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num_events: entry.events.len() as u64,
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};
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let data = serialize(&Response::EntryInfo(entry_info)).expect("serialize EntryInfo");
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trace!("sending {} to {}", data.len(), addr);
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//TODO dont do IO here, this needs to be on a separate channel
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let res = socket.send_to(&data, addr);
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if res.is_err() {
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eprintln!("couldn't send response: {:?}", res);
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}
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}
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}
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fn deserialize_requests(p: &packet::Packets) -> Vec<Option<(Request, SocketAddr)>> {
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p.packets
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.par_iter()
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.map(|x| {
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deserialize(&x.data[0..x.meta.size])
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.map(|req| (req, x.meta.addr()))
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.ok()
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})
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.collect()
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}
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// Copy-paste of deserialize_requests() because I can't figure out how to
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// route the lifetimes in a generic version.
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pub fn deserialize_events(p: &packet::Packets) -> Vec<Option<(Event, SocketAddr)>> {
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p.packets
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.par_iter()
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.map(|x| {
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deserialize(&x.data[0..x.meta.size])
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.map(|req| (req, x.meta.addr()))
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.ok()
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})
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.collect()
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}
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/// Split Request list into verified transactions and the rest
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fn partition_requests(
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req_vers: Vec<(Request, SocketAddr, u8)>,
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) -> (Vec<Event>, Vec<(Request, SocketAddr)>) {
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let mut events = vec![];
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let mut reqs = vec![];
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for (msg, rsp_addr, verify) in req_vers {
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match msg {
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Request::Transaction(tr) => {
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if verify != 0 {
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events.push(Event::Transaction(tr));
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}
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}
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_ => reqs.push((msg, rsp_addr)),
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}
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}
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(events, reqs)
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}
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fn serialize_response(
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resp: Response,
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rsp_addr: SocketAddr,
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blob_recycler: &packet::BlobRecycler,
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) -> Result<packet::SharedBlob> {
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let blob = blob_recycler.allocate();
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{
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let mut b = blob.write().unwrap();
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let v = serialize(&resp)?;
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let len = v.len();
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b.data[..len].copy_from_slice(&v);
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b.meta.size = len;
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b.meta.set_addr(&rsp_addr);
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}
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Ok(blob)
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}
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fn serialize_responses(
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rsps: Vec<(Response, SocketAddr)>,
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blob_recycler: &packet::BlobRecycler,
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) -> Result<VecDeque<packet::SharedBlob>> {
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let mut blobs = VecDeque::new();
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for (resp, rsp_addr) in rsps {
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blobs.push_back(Self::serialize_response(resp, rsp_addr, blob_recycler)?);
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}
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Ok(blobs)
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}
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pub fn process_request_packets(
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&self,
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event_processor: &EventProcessor,
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verified_receiver: &Receiver<Vec<(SharedPackets, Vec<u8>)>>,
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entry_sender: &Sender<Entry>,
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blob_sender: &streamer::BlobSender,
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packet_recycler: &packet::PacketRecycler,
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blob_recycler: &packet::BlobRecycler,
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) -> Result<()> {
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let timer = Duration::new(1, 0);
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let recv_start = Instant::now();
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let mms = verified_receiver.recv_timeout(timer)?;
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let mut reqs_len = 0;
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let mms_len = mms.len();
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info!(
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"@{:?} process start stalled for: {:?}ms batches: {}",
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timing::timestamp(),
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timing::duration_as_ms(&recv_start.elapsed()),
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mms.len(),
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);
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let proc_start = Instant::now();
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for (msgs, vers) in mms {
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let reqs = Self::deserialize_requests(&msgs.read().unwrap());
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reqs_len += reqs.len();
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let req_vers = reqs.into_iter()
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.zip(vers)
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.filter_map(|(req, ver)| req.map(|(msg, addr)| (msg, addr, ver)))
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.filter(|x| {
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let v = x.0.verify();
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v
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})
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.collect();
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debug!("partitioning");
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let (events, reqs) = Self::partition_requests(req_vers);
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debug!("events: {} reqs: {}", events.len(), reqs.len());
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debug!("process_events");
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let entry = event_processor.process_events(events)?;
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entry_sender.send(entry)?;
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debug!("done process_events");
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debug!("process_requests");
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let rsps = self.process_requests(reqs);
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debug!("done process_requests");
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let blobs = Self::serialize_responses(rsps, blob_recycler)?;
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if !blobs.is_empty() {
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info!("process: sending blobs: {}", blobs.len());
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//don't wake up the other side if there is nothing
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blob_sender.send(blobs)?;
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}
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packet_recycler.recycle(msgs);
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}
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let total_time_s = timing::duration_as_s(&proc_start.elapsed());
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let total_time_ms = timing::duration_as_ms(&proc_start.elapsed());
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info!(
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"@{:?} done process batches: {} time: {:?}ms reqs: {} reqs/s: {}",
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timing::timestamp(),
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mms_len,
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total_time_ms,
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reqs_len,
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(reqs_len as f32) / (total_time_s)
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);
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Ok(())
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}
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}
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pub struct RequestStage {
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pub thread_hdl: JoinHandle<()>,
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@ -7,7 +7,8 @@ use entry::Entry;
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use entry_writer::EntryWriter;
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use event_processor::EventProcessor;
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use packet;
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use request_stage::{RequestProcessor, RequestStage};
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use request_processor::RequestProcessor;
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use request_stage::RequestStage;
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use result::Result;
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use sig_verify_stage::SigVerifyStage;
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use std::io::Write;
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@ -8,7 +8,8 @@ use entry_writer::EntryWriter;
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use event_processor::EventProcessor;
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use ledger;
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use packet;
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use request_stage::{RequestProcessor, RequestStage};
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use request_processor::RequestProcessor;
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use request_stage::RequestStage;
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use result::Result;
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use sig_verify_stage::SigVerifyStage;
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use std::net::UdpSocket;
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