Gloas local block building MVP

beacon_node/beacon_chain/src/beacon_chain.rs

@@ -56,6 +56,7 @@ use crate::observed_block_producers::ObservedBlockProducers;
 use crate::observed_data_sidecars::ObservedDataSidecars;
 use crate::observed_operations::{ObservationOutcome, ObservedOperations};
 use crate::observed_slashable::ObservedSlashable;
+use crate::pending_payload_envelopes::PendingPayloadEnvelopes;
 use crate::persisted_beacon_chain::PersistedBeaconChain;
 use crate::persisted_custody::persist_custody_context;
 use crate::persisted_fork_choice::PersistedForkChoice;
@@ -419,6 +420,9 @@ pub struct BeaconChain<T: BeaconChainTypes> {
         RwLock<ObservedDataSidecars<DataColumnSidecar<T::EthSpec>, T::EthSpec>>,
     /// Maintains a record of slashable message seen over the gossip network or RPC.
     pub observed_slashable: RwLock<ObservedSlashable<T::EthSpec>>,
+    /// Cache of pending execution payload envelopes for local block building.
+    /// Envelopes are stored here during block production and eventually published.
+    pub pending_payload_envelopes: RwLock<PendingPayloadEnvelopes<T::EthSpec>>,
     /// Maintains a record of which validators have submitted voluntary exits.
     pub observed_voluntary_exits: Mutex<ObservedOperations<SignedVoluntaryExit, T::EthSpec>>,
     /// Maintains a record of which validators we've seen proposer slashings for.
@@ -4601,7 +4605,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
 
     /// Load a beacon state from the database for block production. This is a long-running process
     /// that should not be performed in an `async` context.
-    fn load_state_for_block_production(
+    pub fn load_state_for_block_production(
         self: &Arc<Self>,
         slot: Slot,
     ) -> Result<(BeaconState<T::EthSpec>, Option<Hash256>), BlockProductionError> {