Rename Runtime to MessageProcessor

runtime/benches/message_processor.rs

@@ -2,7 +2,7 @@
 
 extern crate test;
 
-use solana_runtime::runtime::*;
+use solana_runtime::message_processor::*;
 use test::Bencher;
 
 #[bench]

runtime/src/accounts.rs

@@ -1,6 +1,6 @@
 use crate::append_vec::AppendVec;
 use crate::bank::Result;
-use crate::runtime::has_duplicates;
+use crate::message_processor::has_duplicates;
 use bincode::serialize;
 use hashbrown::{HashMap, HashSet};
 use log::*;

runtime/src/bank.rs

@@ -6,7 +6,7 @@
 use crate::accounts::{Accounts, ErrorCounters, InstructionAccounts, InstructionLoaders};
 use crate::blockhash_queue::BlockhashQueue;
 use crate::locked_accounts_results::LockedAccountsResults;
-use crate::runtime::{ProcessInstruction, Runtime};
+use crate::message_processor::{MessageProcessor, ProcessInstruction};
 use crate::status_cache::StatusCache;
 use bincode::serialize;
 use hashbrown::HashMap;
@@ -160,8 +160,8 @@ pub struct Bank {
     /// stream for the slot == self.slot
     is_delta: AtomicBool,
 
-    /// The runtime executation environment
-    runtime: Runtime,
+    /// The Message processor
+    message_processor: MessageProcessor,
 }
 
 impl Default for BlockhashQueue {
@@ -346,7 +346,7 @@ impl Bank {
             genesis_block.epoch_warmup,
         );
 
-        // Add native programs mandatory for the runtime to function
+        // Add native programs mandatory for the MessageProcessor to function
         self.register_native_instruction_processor(
             "solana_system_program",
             &solana_sdk::system_program::id(),
@@ -609,17 +609,17 @@ impl Bank {
 
         let load_elapsed = now.elapsed();
         let now = Instant::now();
-        let executed: Vec<Result<()>> = loaded_accounts
-            .iter_mut()
-            .zip(txs.iter())
-            .map(|(accs, tx)| match accs {
-                Err(e) => Err(e.clone()),
-                Ok((ref mut accounts, ref mut loaders)) => {
-                    self.runtime
-                        .process_message(tx.message(), loaders, accounts, tick_height)
-                }
-            })
-            .collect();
+        let executed: Vec<Result<()>> =
+            loaded_accounts
+                .iter_mut()
+                .zip(txs.iter())
+                .map(|(accs, tx)| match accs {
+                    Err(e) => Err(e.clone()),
+                    Ok((ref mut accounts, ref mut loaders)) => self
+                        .message_processor
+                        .process_message(tx.message(), loaders, accounts, tick_height),
+                })
+                .collect();
 
         let execution_elapsed = now.elapsed();
 
@@ -934,7 +934,7 @@ impl Bank {
         program_id: Pubkey,
         process_instruction: ProcessInstruction,
     ) {
-        self.runtime
+        self.message_processor
             .add_instruction_processor(program_id, process_instruction);
 
         // Register a bogus executable account, which will be loaded and ignored.

runtime/src/lib.rs

@@ -6,8 +6,8 @@ mod blockhash_queue;
 pub mod bloom;
 pub mod loader_utils;
 pub mod locked_accounts_results;
+pub mod message_processor;
 mod native_loader;
-pub mod runtime;
 mod status_cache;
 mod system_instruction_processor;
 

runtime/src/message_processor.rs

@@ -10,7 +10,7 @@ use solana_sdk::transaction::TransactionError;
 /// Return true if the slice has any duplicate elements
 pub fn has_duplicates<T: PartialEq>(xs: &[T]) -> bool {
     // Note: This is an O(n^2) algorithm, but requires no heap allocations. The benchmark
-    // `bench_has_duplicates` in benches/runtime.rs shows that this implementation is
+    // `bench_has_duplicates` in benches/message_processor.rs shows that this implementation is
     // ~50 times faster than using HashSet for very short slices.
     for i in 1..xs.len() {
         if xs[i..].contains(&xs[i - 1]) {
@@ -85,11 +85,11 @@ fn verify_error(err: InstructionError) -> InstructionError {
 pub type ProcessInstruction =
     fn(&Pubkey, &mut [KeyedAccount], &[u8], u64) -> Result<(), InstructionError>;
 
-pub struct Runtime {
+pub struct MessageProcessor {
     instruction_processors: Vec<(Pubkey, ProcessInstruction)>,
 }
 
-impl Default for Runtime {
+impl Default for MessageProcessor {
     fn default() -> Self {
         let instruction_processors: Vec<(Pubkey, ProcessInstruction)> = vec![(
             system_program::id(),
@@ -102,7 +102,7 @@ impl Default for Runtime {
     }
 }
 
-impl Runtime {
+impl MessageProcessor {
     /// Add a static entrypoint to intercept intructions before the dynamic loader.
     pub fn add_instruction_processor(
         &mut self,