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Add first pass at removing speculative state

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This commit is contained in:
Paul Hauner
2019-08-29 19:14:52 +10:00
parent 29c8477242
commit 682081ef07
10 changed files with 225 additions and 185 deletions
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48
beacon_node/rpc/src/attestation.rs
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@@ -14,7 +14,7 @@ use slog::{error, info, trace, warn};
use ssz::{ssz_encode, Decode, Encode};
use std::sync::Arc;
use tokio::sync::mpsc;
use types::Attestation;
use types::{Attestation, Slot};
#[derive(Clone)]
pub struct AttestationServiceInstance<T: BeaconChainTypes> {
@@ -37,49 +37,13 @@ impl<T: BeaconChainTypes> AttestationService for AttestationServiceInstance<T> {
req.get_slot()
);
// verify the slot, drop lock on state afterwards
{
let slot_requested = req.get_slot();
// TODO: this whole module is legacy and not maintained well.
let state = &self
.chain
.speculative_state()
.expect("This is legacy code and should be removed");
// Start by performing some checks
// Check that the AttestationData is for the current slot (otherwise it will not be valid)
if slot_requested > state.slot.as_u64() {
let log_clone = self.log.clone();
let f = sink
.fail(RpcStatus::new(
RpcStatusCode::OutOfRange,
Some(
"AttestationData request for a slot that is in the future.".to_string(),
),
))
.map_err(move |e| {
error!(log_clone, "Failed to reply with failure {:?}: {:?}", req, e)
});
return ctx.spawn(f);
}
// currently cannot handle past slots. TODO: Handle this case
else if slot_requested < state.slot.as_u64() {
let log_clone = self.log.clone();
let f = sink
.fail(RpcStatus::new(
RpcStatusCode::InvalidArgument,
Some("AttestationData request for a slot that is in the past.".to_string()),
))
.map_err(move |e| {
error!(log_clone, "Failed to reply with failure {:?}: {:?}", req, e)
});
return ctx.spawn(f);
}
}
// Then get the AttestationData from the beacon chain
let shard = req.get_shard();
let attestation_data = match self.chain.produce_attestation_data(shard) {
let slot_requested = req.get_slot();
let attestation_data = match self
.chain
.produce_attestation_data(shard, Slot::from(slot_requested))
{
Ok(v) => v,
Err(e) => {
// Could not produce an attestation