diff --git a/Cargo.lock b/Cargo.lock index 4ebb0f53c..a0a3f76bd 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -74,7 +74,7 @@ name = "aho-corasick" version = "0.7.6" source = "registry+https://github.com/rust-lang/crates.io-index" dependencies = [ - "memchr 2.2.1 (registry+https://github.com/rust-lang/crates.io-index)", + "memchr 2.3.0 (registry+https://github.com/rust-lang/crates.io-index)", ] [[package]] @@ -160,7 +160,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" [[package]] name = "backtrace" -version = "0.3.40" +version = "0.3.41" source = "registry+https://github.com/rust-lang/crates.io-index" dependencies = [ "backtrace-sys 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)", @@ -337,7 +337,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index" dependencies = [ "arrayref 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)", "arrayvec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)", - "constant_time_eq 0.1.4 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thread_local 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "88ddf1ad580c7e3d1efff877d972bcc93f995556b9087a5a259630985c88ceab" +"checksum thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14" "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f" "checksum tiny-keccak 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d8a021c69bb74a44ccedb824a046447e2c84a01df9e5c20779750acb38e11b2" "checksum tinytemplate 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "57a3c6667d3e65eb1bc3aed6fd14011c6cbc3a0665218ab7f5daf040b9ec371a" @@ -5562,7 +5553,7 @@ dependencies = [ "checksum version_check 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "914b1a6776c4c929a602fafd8bc742e06365d4bcbe48c30f9cca5824f70dc9dd" "checksum version_check 0.9.1 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"5205e9afdf42282b192e2310a5b463a6d1c1d774e30dc3c791ac37ab42d2616c" @@ -5586,9 +5577,8 @@ dependencies = [ "checksum winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)" = "8093091eeb260906a183e6ae1abdba2ef5ef2257a21801128899c3fc699229c6" "checksum winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc" "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6" -"checksum winapi-util 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7168bab6e1daee33b4557efd0e95d5ca70a03706d39fa5f3fe7a236f584b03c9" +"checksum winapi-util 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "4ccfbf554c6ad11084fb7517daca16cfdcaccbdadba4fc336f032a8b12c2ad80" "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f" -"checksum wincolor 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "96f5016b18804d24db43cebf3c77269e7569b8954a8464501c216cc5e070eaa9" "checksum winreg 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b2986deb581c4fe11b621998a5e53361efe6b48a151178d0cd9eeffa4dc6acc9" "checksum ws 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "c51a2c47b5798ccc774ffb93ff536aec7c4275d722fd9c740c83cdd1af1f2d94" "checksum ws2_32-sys 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d59cefebd0c892fa2dd6de581e937301d8552cb44489cdff035c6187cb63fa5e" diff --git a/beacon_node/eth2-libp2p/src/rpc/handler.rs b/beacon_node/eth2-libp2p/src/rpc/handler.rs index 3206a17a2..e7b225e16 100644 --- a/beacon_node/eth2-libp2p/src/rpc/handler.rs +++ b/beacon_node/eth2-libp2p/src/rpc/handler.rs @@ -57,7 +57,7 @@ where /// Current inbound substreams awaiting processing. inbound_substreams: - FnvHashMap, delay_queue::Key)>, + FnvHashMap, Option)>, /// Inbound substream `DelayQueue` which keeps track of when an inbound substream will timeout. inbound_substreams_delay: DelayQueue, @@ -134,6 +134,52 @@ pub enum OutboundSubstreamState { Poisoned, } +impl InboundSubstreamState +where + TSubstream: AsyncRead + AsyncWrite, +{ + /// Moves the substream state to closing and informs the connected peer. The + /// `queued_outbound_items` must be given as a parameter to add stream termination messages to + /// the outbound queue. + pub fn close(&mut self, outbound_queue: &mut Vec) { + // When terminating a stream, report the stream termination to the requesting user via + // an RPC error + let error = RPCErrorResponse::ServerError(ErrorMessage { + error_message: "Request timed out".as_bytes().to_vec(), + }); + + // The stream termination type is irrelevant, this will terminate the + // stream + let stream_termination = + RPCErrorResponse::StreamTermination(ResponseTermination::BlocksByRange); + + match std::mem::replace(self, InboundSubstreamState::Poisoned) { + InboundSubstreamState::ResponsePendingSend { substream, closing } => { + if !closing { + outbound_queue.push(error); + outbound_queue.push(stream_termination); + } + // if the stream is closing after the send, allow it to finish + + *self = InboundSubstreamState::ResponsePendingSend { substream, closing } + } + InboundSubstreamState::ResponseIdle(substream) => { + *self = InboundSubstreamState::ResponsePendingSend { + substream: substream.send(error), + closing: true, + }; + } + InboundSubstreamState::Closing(substream) => { + // let the stream close + *self = InboundSubstreamState::Closing(substream); + } + InboundSubstreamState::Poisoned => { + unreachable!("Coding error: Timeout poisoned substream") + } + }; + } +} + impl RPCHandler where TSubstream: AsyncRead + AsyncWrite, @@ -233,7 +279,7 @@ where let awaiting_stream = InboundSubstreamState::ResponseIdle(substream); self.inbound_substreams.insert( self.current_inbound_substream_id, - (awaiting_stream, delay_key), + (awaiting_stream, Some(delay_key)), ); self.events_out @@ -442,47 +488,15 @@ where let rpc_id = stream_id.get_ref(); // handle a stream timeout for various states - if let Some((substream_state, _)) = self.inbound_substreams.get_mut(rpc_id) { - // When terminating a stream, report the stream termination to the requesting user via - // an RPC error - let error = RPCErrorResponse::ServerError(ErrorMessage { - error_message: "Request timed out".as_bytes().to_vec(), - }); - // The stream termination type is irrelevant, this will terminate the - // stream - let stream_termination = - RPCErrorResponse::StreamTermination(ResponseTermination::BlocksByRange); + if let Some((substream_state, delay_key)) = self.inbound_substreams.get_mut(rpc_id) { + // the delay has been removed + *delay_key = None; - match std::mem::replace(substream_state, InboundSubstreamState::Poisoned) { - InboundSubstreamState::ResponsePendingSend { substream, closing } => { - if !closing { - // if the stream is not closing, add an error to the stream queue and exit - let queue = self - .queued_outbound_items - .entry(*rpc_id) - .or_insert_with(Vec::new); - queue.push(error); - queue.push(stream_termination); - } - // if the stream is closing after the send, allow it to finish - - *substream_state = - InboundSubstreamState::ResponsePendingSend { substream, closing } - } - InboundSubstreamState::ResponseIdle(substream) => { - *substream_state = InboundSubstreamState::ResponsePendingSend { - substream: substream.send(error), - closing: true, - }; - } - InboundSubstreamState::Closing(substream) => { - // let the stream close - *substream_state = InboundSubstreamState::Closing(substream); - } - InboundSubstreamState::Poisoned => { - unreachable!("Coding error: Timeout poisoned substream") - } - }; + let outbound_queue = self + .queued_outbound_items + .entry(*rpc_id) + .or_insert_with(Vec::new); + substream_state.close(outbound_queue); } } @@ -546,8 +560,9 @@ where }; } Err(e) => { - let delay_key = &entry.get().1; - self.inbound_substreams_delay.remove(delay_key); + if let Some(delay_key) = &entry.get().1 { + self.inbound_substreams_delay.remove(delay_key); + } entry.remove_entry(); return Ok(Async::Ready(ProtocolsHandlerEvent::Custom( RPCEvent::Error(0, e), @@ -566,9 +581,10 @@ where match substream.close() { Ok(Async::Ready(())) | Err(_) => { //trace!(self.log, "Inbound stream dropped"); - let delay_key = &entry.get().1; + if let Some(delay_key) = &entry.get().1 { + self.inbound_substreams_delay.remove(delay_key); + } self.queued_outbound_items.remove(&request_id); - self.inbound_substreams_delay.remove(delay_key); entry.remove(); } // drop the stream Ok(Async::NotReady) => {