51 lines
1.6 KiB
Rust
51 lines
1.6 KiB
Rust
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use beacon_chain::{db::ClientDB, fork_choice::ForkChoice, slot_clock::SlotClock, BeaconChain};
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use futures::Future;
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use grpcio::{RpcContext, UnarySink};
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use protos::services::{Empty, Fork, NodeInfo};
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use protos::services_grpc::BeaconNodeService;
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use slog::{debug, trace, warn};
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use std::sync::Arc;
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#[derive(Clone)]
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pub struct BeaconNodeServiceInstance<T, U, F>
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where
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T: ClientDB + Clone,
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U: SlotClock + Clone,
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F: ForkChoice + Clone,
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{
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pub chain: Arc<BeaconChain<T, U, F>>,
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pub log: slog::Logger,
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}
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impl<T, U, F> BeaconNodeService for BeaconNodeServiceInstance<T, U, F>
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where
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T: ClientDB + Clone,
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U: SlotClock + Clone,
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F: ForkChoice + Clone,
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{
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/// Provides basic node information.
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fn info(&mut self, ctx: RpcContext, _req: Empty, sink: UnarySink<NodeInfo>) {
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trace!(self.log, "Node info requested via RPC");
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let mut node_info = NodeInfo::new();
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node_info.set_version(version::version());
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// get the chain state fork
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let state_fork = self.chain.state.read().fork.clone();
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// build the rpc fork struct
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let mut fork = Fork::new();
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fork.set_previous_version(state_fork.previous_version.to_vec());
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fork.set_current_version(state_fork.current_version.to_vec());
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fork.set_epoch(state_fork.epoch.into());
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node_info.set_fork(fork);
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node_info.set_chain_id(self.chain.spec.chain_id as u32);
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// send the node_info the requester
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let error_log = self.log.clone();
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let f = sink
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.success(node_info)
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.map_err(move |e| warn!(error_log, "failed to reply {:?}", e));
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ctx.spawn(f)
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}
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}
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