Refactor: Cleanup InvokeContext (#20785)

* Move blockhash and fee_calculator in ThisInvokeContext instead of using a reference.

* Moves tx_wide_compute_cap into InvokeContext::push().

* Adds ThisInvokeContext::new_mock() constructor.

* Adds missing loader account in uses of MockInvokeContext.

* Use keyed_account_at_index() when accessing keyed_accounts.

* Makes sysvar interface consistent between ThisInvokeContext and MockInvokeContext,
in order to add InvokeContext::get_sysvars().

* Adds InvokeContext::set_blockhash() and InvokeContext ::set_fee_calculator().

* Adds new_mock_with_features.

* Makes ancestors optional in ThisInvokeContext.

* Adds prepare_mock_invoke_context() and mock_process_instruction().

program-runtime/src/instruction_processor.rs

@@ -9,6 +9,7 @@ use solana_sdk::{
     },
     ic_msg,
     instruction::{Instruction, InstructionError},
+    keyed_account::keyed_account_at_index,
     message::Message,
     process_instruction::{Executor, InvokeContext, ProcessInstructionWithContext},
     pubkey::Pubkey,
@@ -355,7 +356,8 @@ impl InstructionProcessor {
         instruction_data: &[u8],
         invoke_context: &mut dyn InvokeContext,
     ) -> Result<(), InstructionError> {
-        if let Some(root_account) = invoke_context.get_keyed_accounts()?.iter().next() {
+        let keyed_accounts = invoke_context.get_keyed_accounts()?;
+        if let Ok(root_account) = keyed_account_at_index(keyed_accounts, 0) {
             let root_id = root_account.unsigned_key();
             let owner_id = &root_account.owner()?;
             if solana_sdk::native_loader::check_id(owner_id) {
@@ -536,7 +538,8 @@ impl InstructionProcessor {
             caller_write_privileges = Vec::with_capacity(1 + keyed_account_indices_obsolete.len());
             caller_write_privileges.push(false);
             for index in keyed_account_indices_obsolete.iter() {
-                caller_write_privileges.push(caller_keyed_accounts[*index].is_writable());
+                caller_write_privileges
+                    .push(keyed_account_at_index(caller_keyed_accounts, *index)?.is_writable());
             }
         };
         let mut account_indices = Vec::with_capacity(message.account_keys.len());

program-test/src/lib.rs

@@ -33,7 +33,7 @@ use {
         message::Message,
         native_token::sol_to_lamports,
         poh_config::PohConfig,
-        process_instruction::{stable_log, InvokeContext, ProcessInstructionWithContext},
+        process_instruction::{self, stable_log, InvokeContext, ProcessInstructionWithContext},
         program_error::{ProgramError, ACCOUNT_BORROW_FAILED, UNSUPPORTED_SYSVAR},
         pubkey::Pubkey,
         rent::Rent,
@@ -204,24 +204,6 @@ fn get_sysvar<T: Default + Sysvar + Sized + serde::de::DeserializeOwned>(
     var_addr: *mut u8,
 ) -> u64 {
     let invoke_context = get_invoke_context();
-
-    let sysvar_data = match invoke_context.get_sysvar_data(id).ok_or_else(|| {
-        ic_msg!(invoke_context, "Unable to get Sysvar {}", id);
-        UNSUPPORTED_SYSVAR
-    }) {
-        Ok(sysvar_data) => sysvar_data,
-        Err(err) => return err,
-    };
-
-    let var: T = match bincode::deserialize(&sysvar_data) {
-        Ok(sysvar_data) => sysvar_data,
-        Err(_) => return UNSUPPORTED_SYSVAR,
-    };
-
-    unsafe {
-        *(var_addr as *mut _ as *mut T) = var;
-    }
-
     if invoke_context
         .get_compute_meter()
         .try_borrow_mut()
@@ -233,7 +215,13 @@ fn get_sysvar<T: Default + Sysvar + Sized + serde::de::DeserializeOwned>(
         panic!("Exceeded compute budget");
     }
 
-    SUCCESS
+    match process_instruction::get_sysvar::<T>(invoke_context, id) {
+        Ok(sysvar_data) => unsafe {
+            *(var_addr as *mut _ as *mut T) = sysvar_data;
+            SUCCESS
+        },
+        Err(_) => UNSUPPORTED_SYSVAR,
+    }
 }
 
 struct SyscallStubs {}

programs/bpf/benches/bpf_loader.rs

@@ -94,8 +94,28 @@ fn bench_program_alu(bencher: &mut Bencher) {
         .write_u64::<LittleEndian>(ARMSTRONG_LIMIT)
         .unwrap();
     inner_iter.write_u64::<LittleEndian>(0).unwrap();
+
     let loader_id = bpf_loader::id();
-    let mut invoke_context = MockInvokeContext::new(&Pubkey::default(), vec![]);
+    let program_id = solana_sdk::pubkey::new_rand();
+    let accounts = [
+        (
+            program_id,
+            RefCell::new(AccountSharedData::new(0, 0, &loader_id)),
+        ),
+        (
+            solana_sdk::pubkey::new_rand(),
+            RefCell::new(AccountSharedData::new(
+                1,
+                10000001,
+                &solana_sdk::pubkey::new_rand(),
+            )),
+        ),
+    ];
+    let keyed_accounts: Vec<_> = accounts
+        .iter()
+        .map(|(key, account)| solana_sdk::keyed_account::KeyedAccount::new(&key, false, &account))
+        .collect();
+    let mut invoke_context = MockInvokeContext::new(&program_id, keyed_accounts);
 
     let elf = load_elf("bench_alu").unwrap();
     let mut executable = <dyn Executable<BpfError, ThisInstructionMeter>>::from_elf(
@@ -254,29 +274,35 @@ fn bench_create_vm(bencher: &mut Bencher) {
 fn bench_instruction_count_tuner(_bencher: &mut Bencher) {
     const BUDGET: u64 = 200_000;
     let loader_id = bpf_loader::id();
+    let program_id = solana_sdk::pubkey::new_rand();
 
-    let accounts = [RefCell::new(AccountSharedData::new(
+    let accounts = [
-        1,
+        (
-        10000001,
+            program_id,
-        &solana_sdk::pubkey::new_rand(),
+            RefCell::new(AccountSharedData::new(0, 0, &loader_id)),
-    ))];
+        ),
-    let keys = [solana_sdk::pubkey::new_rand()];
+        (
-    let keyed_accounts: Vec<_> = keys
+            solana_sdk::pubkey::new_rand(),
+            RefCell::new(AccountSharedData::new(
+                1,
+                10000001,
+                &solana_sdk::pubkey::new_rand(),
+            )),
+        ),
+    ];
+    let keyed_accounts: Vec<_> = accounts
         .iter()
-        .zip(&accounts)
         .map(|(key, account)| solana_sdk::keyed_account::KeyedAccount::new(&key, false, &account))
         .collect();
     let instruction_data = vec![0u8];
-
+    let mut invoke_context = MockInvokeContext::new(&program_id, keyed_accounts);
-    let mut invoke_context = MockInvokeContext::new(&loader_id, keyed_accounts);
     invoke_context.compute_meter.remaining = BUDGET;
 
     // Serialize account data
-    let keyed_accounts = invoke_context.get_keyed_accounts().unwrap();
     let (mut serialized, account_lengths) = serialize_parameters(
         &loader_id,
-        &solana_sdk::pubkey::new_rand(),
+        &program_id,
-        keyed_accounts,
+        &invoke_context.get_keyed_accounts().unwrap()[1..],
         &instruction_data,
     )
     .unwrap();

programs/bpf/tests/programs.rs

@@ -192,24 +192,23 @@ fn upgrade_bpf_program(
 
 fn run_program(
     name: &str,
+    loader_id: &Pubkey,
     program_id: &Pubkey,
     parameter_accounts: Vec<KeyedAccount>,
     instruction_data: &[u8],
 ) -> Result<u64, InstructionError> {
-    let path = create_bpf_path(name);
+    let mut file = File::open(create_bpf_path(name)).unwrap();
-    let mut file = File::open(path).unwrap();
-
     let mut data = vec![];
     file.read_to_end(&mut data).unwrap();
-    let loader_id = bpf_loader::id();
+
+    let mut invoke_context = MockInvokeContext::new(&program_id, parameter_accounts);
     let (parameter_bytes, account_lengths) = serialize_parameters(
         &loader_id,
         program_id,
-        &parameter_accounts,
+        &invoke_context.get_keyed_accounts().unwrap()[1..],
         &instruction_data,
     )
     .unwrap();
-    let mut invoke_context = MockInvokeContext::new(&loader_id, parameter_accounts);
     let compute_meter = invoke_context.get_compute_meter();
     let mut instruction_meter = ThisInstructionMeter { compute_meter };
 
@@ -1405,11 +1404,17 @@ fn assert_instruction_count() {
     let mut passed = true;
     println!("\n  {:36} expected actual  diff", "BPF program");
     for program in programs.iter() {
+        let loader_id = bpf_loader::id();
         let program_id = Pubkey::new_unique();
         let key = Pubkey::new_unique();
+        let mut program_account = RefCell::new(AccountSharedData::new(0, 0, &loader_id));
         let mut account = RefCell::new(AccountSharedData::default());
-        let parameter_accounts = vec![KeyedAccount::new(&key, false, &mut account)];
+        let parameter_accounts = vec![
-        let count = run_program(program.0, &program_id, parameter_accounts, &[]).unwrap();
+            KeyedAccount::new(&program_id, false, &mut program_account),
+            KeyedAccount::new(&key, false, &mut account),
+        ];
+        let count =
+            run_program(program.0, &loader_id, &program_id, parameter_accounts, &[]).unwrap();
         let diff: i64 = count as i64 - program.1 as i64;
         println!(
             "  {:36} {:8} {:6} {:+5} ({:+3.0}%)",

programs/bpf_loader/src/syscalls.rs

@@ -3335,7 +3335,8 @@ mod tests {
             let mut data = vec![];
             bincode::serialize_into(&mut data, &src_clock).unwrap();
             invoke_context
-                .sysvars
+                .get_sysvars()
+                .borrow_mut()
                 .push((sysvar::clock::id(), Some(Rc::new(data))));
 
             let mut syscall = SyscallGetClockSysvar {
@@ -3380,7 +3381,8 @@ mod tests {
             let mut data = vec![];
             bincode::serialize_into(&mut data, &src_epochschedule).unwrap();
             invoke_context
-                .sysvars
+                .get_sysvars()
+                .borrow_mut()
                 .push((sysvar::epoch_schedule::id(), Some(Rc::new(data))));
 
             let mut syscall = SyscallGetEpochScheduleSysvar {
@@ -3432,7 +3434,8 @@ mod tests {
             let mut data = vec![];
             bincode::serialize_into(&mut data, &src_fees).unwrap();
             invoke_context
-                .sysvars
+                .get_sysvars()
+                .borrow_mut()
                 .push((sysvar::fees::id(), Some(Rc::new(data))));
 
             let mut syscall = SyscallGetFeesSysvar {
@@ -3475,7 +3478,8 @@ mod tests {
             let mut data = vec![];
             bincode::serialize_into(&mut data, &src_rent).unwrap();
             invoke_context
-                .sysvars
+                .get_sysvars()
+                .borrow_mut()
                 .push((sysvar::rent::id(), Some(Rc::new(data))));
 
             let mut syscall = SyscallGetRentSysvar {

programs/config/src/config_processor.rs

@@ -54,20 +54,19 @@ pub fn process_instruction(
     }
 
     let mut counter = 0;
-    let mut keyed_accounts_iter = keyed_accounts.iter().skip(2);
     for (signer, _) in key_list.keys.iter().filter(|(_, is_signer)| *is_signer) {
         counter += 1;
         if signer != config_keyed_account.unsigned_key() {
-            let signer_account = keyed_accounts_iter.next();
+            let signer_account =
-            if signer_account.is_none() {
+                keyed_account_at_index(keyed_accounts, counter + 1).map_err(|_| {
-                ic_msg!(
+                    ic_msg!(
-                    invoke_context,
+                        invoke_context,
-                    "account {:?} is not in account list",
+                        "account {:?} is not in account list",
-                    signer
+                        signer,
-                );
+                    );
-                return Err(InstructionError::MissingRequiredSignature);
+                    InstructionError::MissingRequiredSignature
-            }
+                })?;
-            let signer_key = signer_account.unwrap().signer_key();
+            let signer_key = signer_account.signer_key();
             if signer_key.is_none() {
                 ic_msg!(
                     invoke_context,

programs/stake/src/stake_instruction.rs

@@ -37,7 +37,7 @@ pub fn process_instruction(
         return Err(InstructionError::InvalidAccountOwner);
     }
 
-    let signers = get_signers(&keyed_accounts[1..]);
+    let signers = get_signers(&keyed_accounts[first_instruction_account..]);
     match limited_deserialize(data)? {
         StakeInstruction::Initialize(authorized, lockup) => me.initialize(
             &authorized,
@@ -330,7 +330,7 @@ mod tests {
         account::{self, Account, AccountSharedData, WritableAccount},
         instruction::{AccountMeta, Instruction},
         keyed_account::create_keyed_accounts_unified,
-        process_instruction::{mock_set_sysvar, MockInvokeContext},
+        process_instruction::MockInvokeContext,
         pubkey::Pubkey,
         rent::Rent,
         stake::{
@@ -338,7 +338,7 @@ mod tests {
             instruction::{self, LockupArgs},
             state::{Authorized, Lockup, StakeAuthorize},
         },
-        sysvar::stake_history::StakeHistory,
+        sysvar::{stake_history::StakeHistory, Sysvar},
     };
     use std::{cell::RefCell, rc::Rc, str::FromStr};
 
@@ -442,12 +442,12 @@ mod tests {
                 &processor_id,
                 create_keyed_accounts_unified(&keyed_accounts),
             );
-            mock_set_sysvar(
+            let mut data = Vec::with_capacity(sysvar::clock::Clock::size_of());
-                &mut invoke_context,
+            bincode::serialize_into(&mut data, &sysvar::clock::Clock::default()).unwrap();
-                sysvar::clock::id(),
+            invoke_context
-                sysvar::clock::Clock::default(),
+                .get_sysvars()
-            )
+                .borrow_mut()
-            .unwrap();
+                .push((sysvar::clock::id(), Some(Rc::new(data))));
             super::process_instruction(1, &instruction.data, &mut invoke_context)
         }
     }
@@ -1100,11 +1100,11 @@ mod tests {
         ];
         let mut invoke_context =
             MockInvokeContext::new(&id(), create_keyed_accounts_unified(&keyed_accounts));
-        let clock = Clock::default();
+        let mut data = Vec::with_capacity(sysvar::clock::Clock::size_of());
-        let mut data = vec![];
+        bincode::serialize_into(&mut data, &sysvar::clock::Clock::default()).unwrap();
-        bincode::serialize_into(&mut data, &clock).unwrap();
         invoke_context
-            .sysvars
+            .get_sysvars()
+            .borrow_mut()
             .push((sysvar::clock::id(), Some(Rc::new(data))));
 
         assert_eq!(

programs/vote/src/vote_instruction.rs

@@ -322,7 +322,7 @@ pub fn process_instruction(
         return Err(InstructionError::InvalidAccountOwner);
     }
 
-    let signers: HashSet<Pubkey> = get_signers(&keyed_accounts[1..]);
+    let signers: HashSet<Pubkey> = get_signers(&keyed_accounts[first_instruction_account..]);
     match limited_deserialize(data)? {
         VoteInstruction::InitializeAccount(vote_init) => {
             verify_rent_exemption(

runtime/src/bank.rs

@@ -6332,6 +6332,7 @@ pub(crate) mod tests {
         genesis_config::create_genesis_config,
         hash,
         instruction::{AccountMeta, CompiledInstruction, Instruction, InstructionError},
+        keyed_account::keyed_account_at_index,
         message::{Message, MessageHeader},
         nonce,
         poh_config::PohConfig,
@@ -6713,11 +6714,11 @@ pub(crate) mod tests {
         if let Ok(instruction) = bincode::deserialize(data) {
             match instruction {
                 MockInstruction::Deduction => {
-                    keyed_accounts[first_instruction_account + 1]
+                    keyed_account_at_index(keyed_accounts, first_instruction_account + 1)?
                         .account
                         .borrow_mut()
                         .checked_add_lamports(1)?;
-                    keyed_accounts[first_instruction_account + 2]
+                    keyed_account_at_index(keyed_accounts, first_instruction_account + 2)?
                         .account
                         .borrow_mut()
                         .checked_sub_lamports(1)?;
@@ -11295,18 +11296,16 @@ pub(crate) mod tests {
         ) -> result::Result<(), InstructionError> {
             let keyed_accounts = invoke_context.get_keyed_accounts()?;
             let lamports = data[0] as u64;
-            {
+            keyed_account_at_index(keyed_accounts, first_instruction_account + 2)?
-                let mut to_account =
-                    keyed_accounts[first_instruction_account + 1].try_account_ref_mut()?;
-                let mut dup_account =
-                    keyed_accounts[first_instruction_account + 2].try_account_ref_mut()?;
-                dup_account.checked_sub_lamports(lamports)?;
-                to_account.checked_add_lamports(lamports)?;
-            }
-            keyed_accounts[first_instruction_account]
                 .try_account_ref_mut()?
                 .checked_sub_lamports(lamports)?;
-            keyed_accounts[first_instruction_account + 1]
+            keyed_account_at_index(keyed_accounts, first_instruction_account + 1)?
+                .try_account_ref_mut()?
+                .checked_add_lamports(lamports)?;
+            keyed_account_at_index(keyed_accounts, first_instruction_account)?
+                .try_account_ref_mut()?
+                .checked_sub_lamports(lamports)?;
+            keyed_account_at_index(keyed_accounts, first_instruction_account + 1)?
                 .try_account_ref_mut()?
                 .checked_add_lamports(lamports)?;
             Ok(())
@@ -11790,14 +11789,9 @@ pub(crate) mod tests {
             invoke_context: &mut dyn InvokeContext,
         ) -> result::Result<(), InstructionError> {
             let keyed_accounts = invoke_context.get_keyed_accounts()?;
-            assert_eq!(
+            let account = keyed_account_at_index(keyed_accounts, first_instruction_account)?;
-                42,
+            assert_eq!(42, account.lamports().unwrap());
-                keyed_accounts[first_instruction_account]
+            account.try_account_ref_mut()?.checked_add_lamports(1)?;
-                    .lamports()
-                    .unwrap()
-            );
-            let mut account = keyed_accounts[first_instruction_account].try_account_ref_mut()?;
-            account.checked_add_lamports(1)?;
             Ok(())
         }
 
@@ -14598,8 +14592,8 @@ pub(crate) mod tests {
         ) -> std::result::Result<(), InstructionError> {
             use solana_sdk::account::WritableAccount;
             let keyed_accounts = invoke_context.get_keyed_accounts()?;
-            let mut data = keyed_accounts[first_instruction_account + 1].try_account_ref_mut()?;
+            let data = keyed_account_at_index(keyed_accounts, first_instruction_account + 1)?;
-            data.data_as_mut_slice()[0] = 5;
+            data.try_account_ref_mut()?.data_as_mut_slice()[0] = 5;
             Ok(())
         }
 

runtime/src/message_processor.rs

@@ -17,7 +17,7 @@ use solana_sdk::{
     fee_calculator::FeeCalculator,
     hash::Hash,
     ic_logger_msg,
-    instruction::{CompiledInstruction, Instruction, InstructionError},
+    instruction::{AccountMeta, CompiledInstruction, Instruction, InstructionError},
     keyed_account::{create_keyed_accounts_unified, KeyedAccount},
     message::Message,
     precompiles::is_precompile,
@@ -48,6 +48,32 @@ impl ComputeMeter for ThisComputeMeter {
         self.remaining
     }
 }
+impl ThisComputeMeter {
+    pub fn new_ref(remaining: u64) -> Rc<RefCell<Self>> {
+        Rc::new(RefCell::new(Self { remaining }))
+    }
+}
+
+pub struct ThisLogger {
+    log_collector: Option<Rc<LogCollector>>,
+}
+impl Logger for ThisLogger {
+    fn log_enabled(&self) -> bool {
+        log_enabled!(log::Level::Info) || self.log_collector.is_some()
+    }
+    fn log(&self, message: &str) {
+        debug!("{}", message);
+        if let Some(log_collector) = &self.log_collector {
+            log_collector.log(message);
+        }
+    }
+}
+impl ThisLogger {
+    pub fn new_ref(log_collector: Option<Rc<LogCollector>>) -> Rc<RefCell<Self>> {
+        Rc::new(RefCell::new(Self { log_collector }))
+    }
+}
+
 pub struct ThisInvokeContext<'a> {
     instruction_index: usize,
     invoke_stack: Vec<InvokeContextStackFrame<'a>>,
@@ -63,11 +89,11 @@ pub struct ThisInvokeContext<'a> {
     feature_set: Arc<FeatureSet>,
     pub timings: ExecuteDetailsTimings,
     account_db: Arc<Accounts>,
-    ancestors: &'a Ancestors,
+    ancestors: Option<&'a Ancestors>,
     #[allow(clippy::type_complexity)]
     sysvars: RefCell<Vec<(Pubkey, Option<Rc<Vec<u8>>>)>>,
-    blockhash: &'a Hash,
+    blockhash: Hash,
-    fee_calculator: &'a FeeCalculator,
+    fee_calculator: FeeCalculator,
     return_data: (Pubkey, Vec<u8>),
 }
 impl<'a> ThisInvokeContext<'a> {
@@ -83,9 +109,9 @@ impl<'a> ThisInvokeContext<'a> {
         instruction_recorders: Option<&'a [InstructionRecorder]>,
         feature_set: Arc<FeatureSet>,
         account_db: Arc<Accounts>,
-        ancestors: &'a Ancestors,
+        ancestors: Option<&'a Ancestors>,
-        blockhash: &'a Hash,
+        blockhash: Hash,
-        fee_calculator: &'a FeeCalculator,
+        fee_calculator: FeeCalculator,
     ) -> Self {
         Self {
             instruction_index: 0,
@@ -94,7 +120,7 @@ impl<'a> ThisInvokeContext<'a> {
             pre_accounts: Vec::new(),
             accounts,
             programs,
-            logger: Rc::new(RefCell::new(ThisLogger { log_collector })),
+            logger: ThisLogger::new_ref(log_collector),
             compute_budget,
             compute_meter,
             executors,
@@ -103,12 +129,41 @@ impl<'a> ThisInvokeContext<'a> {
             timings: ExecuteDetailsTimings::default(),
             account_db,
             ancestors,
-            sysvars: RefCell::new(vec![]),
+            sysvars: RefCell::new(Vec::new()),
             blockhash,
             fee_calculator,
             return_data: (Pubkey::default(), Vec::new()),
         }
     }
+
+    pub fn new_mock_with_features(
+        accounts: &'a [(Pubkey, Rc<RefCell<AccountSharedData>>)],
+        programs: &'a [(Pubkey, ProcessInstructionWithContext)],
+        feature_set: Arc<FeatureSet>,
+    ) -> Self {
+        Self::new(
+            Rent::default(),
+            accounts,
+            programs,
+            None,
+            ComputeBudget::default(),
+            ThisComputeMeter::new_ref(std::i64::MAX as u64),
+            Rc::new(RefCell::new(Executors::default())),
+            None,
+            feature_set,
+            Arc::new(Accounts::default_for_tests()),
+            None,
+            Hash::default(),
+            FeeCalculator::default(),
+        )
+    }
+
+    pub fn new_mock(
+        accounts: &'a [(Pubkey, Rc<RefCell<AccountSharedData>>)],
+        programs: &'a [(Pubkey, ProcessInstructionWithContext)],
+    ) -> Self {
+        Self::new_mock_with_features(accounts, programs, Arc::new(FeatureSet::all_enabled()))
+    }
 }
 impl<'a> InvokeContext for ThisInvokeContext<'a> {
     fn push(
@@ -140,6 +195,10 @@ impl<'a> InvokeContext for ThisInvokeContext<'a> {
         }
 
         if self.invoke_stack.is_empty() {
+            if !self.feature_set.is_active(&tx_wide_compute_cap::id()) {
+                self.compute_meter = ThisComputeMeter::new_ref(self.compute_budget.max_units);
+            }
+
             self.pre_accounts = Vec::with_capacity(instruction.accounts.len());
             let mut work = |_unique_index: usize, account_index: usize| {
                 if account_index < self.accounts.len() {
@@ -364,11 +423,6 @@ impl<'a> InvokeContext for ThisInvokeContext<'a> {
         self.executors.borrow().get(pubkey)
     }
     fn set_instruction_index(&mut self, instruction_index: usize) {
-        if !self.feature_set.is_active(&tx_wide_compute_cap::id()) {
-            self.compute_meter = Rc::new(RefCell::new(ThisComputeMeter {
-                remaining: self.compute_budget.max_units,
-            }));
-        }
         self.instruction_index = instruction_index;
     }
     fn record_instruction(&self, instruction: &Instruction) {
@@ -399,6 +453,10 @@ impl<'a> InvokeContext for ThisInvokeContext<'a> {
         self.timings.execute_us += execute_us;
         self.timings.deserialize_us += deserialize_us;
     }
+    #[allow(clippy::type_complexity)]
+    fn get_sysvars(&self) -> &RefCell<Vec<(Pubkey, Option<Rc<Vec<u8>>>)>> {
+        &self.sysvars
+    }
     fn get_sysvar_data(&self, id: &Pubkey) -> Option<Rc<Vec<u8>>> {
         if let Ok(mut sysvars) = self.sysvars.try_borrow_mut() {
             // Try share from cache
@@ -406,13 +464,15 @@ impl<'a> InvokeContext for ThisInvokeContext<'a> {
                 .iter()
                 .find_map(|(key, sysvar)| if id == key { sysvar.clone() } else { None });
             if result.is_none() {
-                // Load it
+                if let Some(ancestors) = self.ancestors {
-                result = self
+                    // Load it
-                    .account_db
+                    result = self
-                    .load_with_fixed_root(self.ancestors, id)
+                        .account_db
-                    .map(|(account, _)| Rc::new(account.data().to_vec()));
+                        .load_with_fixed_root(ancestors, id)
-                // Cache it
+                        .map(|(account, _)| Rc::new(account.data().to_vec()));
-                sysvars.push((*id, result.clone()));
+                    // Cache it
+                    sysvars.push((*id, result.clone()));
+                }
             }
             result
         } else {
@@ -422,11 +482,17 @@ impl<'a> InvokeContext for ThisInvokeContext<'a> {
     fn get_compute_budget(&self) -> &ComputeBudget {
         &self.compute_budget
     }
+    fn set_blockhash(&mut self, hash: Hash) {
+        self.blockhash = hash;
+    }
     fn get_blockhash(&self) -> &Hash {
-        self.blockhash
+        &self.blockhash
+    }
+    fn set_fee_calculator(&mut self, fee_calculator: FeeCalculator) {
+        self.fee_calculator = fee_calculator;
     }
     fn get_fee_calculator(&self) -> &FeeCalculator {
-        self.fee_calculator
+        &self.fee_calculator
     }
     fn set_return_data(&mut self, data: Vec<u8>) -> Result<(), InstructionError> {
         self.return_data = (*self.get_caller()?, data);
@@ -436,21 +502,90 @@ impl<'a> InvokeContext for ThisInvokeContext<'a> {
         (self.return_data.0, &self.return_data.1)
     }
 }
-pub struct ThisLogger {
+
-    log_collector: Option<Rc<LogCollector>>,
+pub struct MockInvokeContextPreparation {
+    pub accounts: Vec<(Pubkey, Rc<RefCell<AccountSharedData>>)>,
+    pub message: Message,
+    pub account_indices: Vec<usize>,
 }
-impl Logger for ThisLogger {
+
-    fn log_enabled(&self) -> bool {
+pub fn prepare_mock_invoke_context(
-        log_enabled!(log::Level::Info) || self.log_collector.is_some()
+    program_indices: &[usize],
+    instruction_data: &[u8],
+    keyed_accounts: &[(bool, bool, Pubkey, Rc<RefCell<AccountSharedData>>)],
+) -> MockInvokeContextPreparation {
+    #[allow(clippy::type_complexity)]
+    let (accounts, mut metas): (
+        Vec<(Pubkey, Rc<RefCell<AccountSharedData>>)>,
+        Vec<AccountMeta>,
+    ) = keyed_accounts
+        .iter()
+        .map(|(is_signer, is_writable, pubkey, account)| {
+            (
+                (*pubkey, account.clone()),
+                AccountMeta {
+                    pubkey: *pubkey,
+                    is_signer: *is_signer,
+                    is_writable: *is_writable,
+                },
+            )
+        })
+        .unzip();
+    let program_id = if let Some(program_index) = program_indices.last() {
+        accounts[*program_index].0
+    } else {
+        Pubkey::default()
+    };
+    for program_index in program_indices.iter().rev() {
+        metas.remove(*program_index);
     }
-    fn log(&self, message: &str) {
+    let message = Message::new(
-        debug!("{}", message);
+        &[Instruction::new_with_bytes(
-        if let Some(log_collector) = &self.log_collector {
+            program_id,
-            log_collector.log(message);
+            instruction_data,
-        }
+            metas,
+        )],
+        None,
+    );
+    let account_indices: Vec<usize> = message
+        .account_keys
+        .iter()
+        .map(|search_key| {
+            accounts
+                .iter()
+                .position(|(key, _account)| key == search_key)
+                .unwrap_or(accounts.len())
+        })
+        .collect();
+    MockInvokeContextPreparation {
+        accounts,
+        message,
+        account_indices,
     }
 }
 
+pub fn mock_process_instruction(
+    loader_id: &Pubkey,
+    mut program_indices: Vec<usize>,
+    instruction_data: &[u8],
+    keyed_accounts: &[(bool, bool, Pubkey, Rc<RefCell<AccountSharedData>>)],
+    process_instruction: ProcessInstructionWithContext,
+) -> Result<(), InstructionError> {
+    let mut preparation =
+        prepare_mock_invoke_context(&program_indices, instruction_data, keyed_accounts);
+    let processor_account = AccountSharedData::new_ref(0, 0, &solana_sdk::native_loader::id());
+    program_indices.insert(0, preparation.accounts.len());
+    preparation.accounts.push((*loader_id, processor_account));
+    let mut invoke_context = ThisInvokeContext::new_mock(&preparation.accounts, &[]);
+    invoke_context.push(
+        &preparation.message,
+        &preparation.message.instructions[0],
+        &program_indices,
+        Some(&preparation.account_indices),
+    )?;
+    process_instruction(1, instruction_data, &mut invoke_context)
+}
+
 #[derive(Debug, Default, Clone, Deserialize, Serialize)]
 pub struct MessageProcessor {}
 
@@ -500,9 +635,9 @@ impl MessageProcessor {
             instruction_recorders,
             feature_set,
             account_db,
-            ancestors,
+            Some(ancestors),
-            &blockhash,
+            blockhash,
-            &fee_calculator,
+            fee_calculator,
         );
         let compute_meter = invoke_context.get_compute_meter();
 
@@ -585,9 +720,9 @@ mod tests {
     use super::*;
     use solana_sdk::{
         instruction::{AccountMeta, Instruction, InstructionError},
+        keyed_account::keyed_account_at_index,
         message::Message,
         native_loader::{self, create_loadable_account_for_test},
-        process_instruction::MockComputeMeter,
         secp256k1_instruction::new_secp256k1_instruction,
         secp256k1_program,
     };
@@ -610,11 +745,11 @@ mod tests {
         let keyed_accounts = invoke_context.get_keyed_accounts()?;
         assert_eq!(
             *program_id,
-            keyed_accounts[first_instruction_account].owner()?
+            keyed_account_at_index(keyed_accounts, first_instruction_account)?.owner()?
         );
         assert_ne!(
-            keyed_accounts[first_instruction_account + 1].owner()?,
+            keyed_account_at_index(keyed_accounts, first_instruction_account + 1)?.owner()?,
-            *keyed_accounts[first_instruction_account].unsigned_key()
+            *keyed_account_at_index(keyed_accounts, first_instruction_account)?.unsigned_key()
         );
 
         if let Ok(instruction) = bincode::deserialize(data) {
@@ -622,17 +757,17 @@ mod tests {
                 MockInstruction::NoopSuccess => (),
                 MockInstruction::NoopFail => return Err(InstructionError::GenericError),
                 MockInstruction::ModifyOwned => {
-                    keyed_accounts[first_instruction_account]
+                    keyed_account_at_index(keyed_accounts, first_instruction_account)?
                         .try_account_ref_mut()?
                         .data_as_mut_slice()[0] = 1
                 }
                 MockInstruction::ModifyNotOwned => {
-                    keyed_accounts[first_instruction_account + 1]
+                    keyed_account_at_index(keyed_accounts, first_instruction_account + 1)?
                         .try_account_ref_mut()?
                         .data_as_mut_slice()[0] = 1
                 }
                 MockInstruction::ModifyReadonly => {
-                    keyed_accounts[first_instruction_account + 2]
+                    keyed_account_at_index(keyed_accounts, first_instruction_account + 2)?
                         .try_account_ref_mut()?
                         .data_as_mut_slice()[0] = 1
                 }
@@ -678,24 +813,7 @@ mod tests {
             &[Instruction::new_with_bytes(invoke_stack[0], &[0], metas)],
             None,
         );
-        let ancestors = Ancestors::default();
+        let mut invoke_context = ThisInvokeContext::new_mock(&accounts, &[]);
-        let blockhash = Hash::default();
-        let fee_calculator = FeeCalculator::default();
-        let mut invoke_context = ThisInvokeContext::new(
-            Rent::default(),
-            &accounts,
-            &[],
-            None,
-            ComputeBudget::default(),
-            Rc::new(RefCell::new(MockComputeMeter::default())),
-            Rc::new(RefCell::new(Executors::default())),
-            None,
-            Arc::new(FeatureSet::all_enabled()),
-            Arc::new(Accounts::default_for_tests()),
-            &ancestors,
-            &blockhash,
-            &fee_calculator,
-        );
 
         // Check call depth increases and has a limit
         let mut depth_reached = 0;
@@ -782,24 +900,7 @@ mod tests {
             )],
             None,
         );
-        let ancestors = Ancestors::default();
+        let mut invoke_context = ThisInvokeContext::new_mock(&accounts, &[]);
-        let blockhash = Hash::default();
-        let fee_calculator = FeeCalculator::default();
-        let mut invoke_context = ThisInvokeContext::new(
-            Rent::default(),
-            &accounts,
-            &[],
-            None,
-            ComputeBudget::default(),
-            Rc::new(RefCell::new(MockComputeMeter::default())),
-            Rc::new(RefCell::new(Executors::default())),
-            None,
-            Arc::new(FeatureSet::all_enabled()),
-            Arc::new(Accounts::default_for_tests()),
-            &ancestors,
-            &blockhash,
-            &fee_calculator,
-        );
         invoke_context
             .push(&message, &message.instructions[0], &[0], None)
             .unwrap();
@@ -833,11 +934,11 @@ mod tests {
                 match instruction {
                     MockSystemInstruction::Correct => Ok(()),
                     MockSystemInstruction::AttemptCredit { lamports } => {
-                        keyed_accounts[first_instruction_account]
+                        keyed_account_at_index(keyed_accounts, first_instruction_account)?
                             .account
                             .borrow_mut()
                             .checked_sub_lamports(lamports)?;
-                        keyed_accounts[first_instruction_account + 1]
+                        keyed_account_at_index(keyed_accounts, first_instruction_account + 1)?
                             .account
                             .borrow_mut()
                             .checked_add_lamports(lamports)?;
@@ -845,7 +946,7 @@ mod tests {
                     }
                     // Change data in a read-only account
                     MockSystemInstruction::AttemptDataChange { data } => {
-                        keyed_accounts[first_instruction_account + 1]
+                        keyed_account_at_index(keyed_accounts, first_instruction_account + 1)?
                             .account
                             .borrow_mut()
                             .set_data(vec![data]);
@@ -905,7 +1006,7 @@ mod tests {
             None,
             Arc::new(FeatureSet::all_enabled()),
             ComputeBudget::new(),
-            Rc::new(RefCell::new(MockComputeMeter::default())),
+            ThisComputeMeter::new_ref(std::i64::MAX as u64),
             &mut ExecuteDetailsTimings::default(),
             Arc::new(Accounts::default_for_tests()),
             &ancestors,
@@ -936,7 +1037,7 @@ mod tests {
             None,
             Arc::new(FeatureSet::all_enabled()),
             ComputeBudget::new(),
-            Rc::new(RefCell::new(MockComputeMeter::default())),
+            ThisComputeMeter::new_ref(std::i64::MAX as u64),
             &mut ExecuteDetailsTimings::default(),
             Arc::new(Accounts::default_for_tests()),
             &ancestors,
@@ -971,7 +1072,7 @@ mod tests {
             None,
             Arc::new(FeatureSet::all_enabled()),
             ComputeBudget::new(),
-            Rc::new(RefCell::new(MockComputeMeter::default())),
+            ThisComputeMeter::new_ref(std::i64::MAX as u64),
             &mut ExecuteDetailsTimings::default(),
             Arc::new(Accounts::default_for_tests()),
             &ancestors,
@@ -1006,9 +1107,11 @@ mod tests {
                 match instruction {
                     MockSystemInstruction::BorrowFail => {
                         let from_account =
-                            keyed_accounts[first_instruction_account].try_account_ref_mut()?;
+                            keyed_account_at_index(keyed_accounts, first_instruction_account)?
+                                .try_account_ref_mut()?;
                         let dup_account =
-                            keyed_accounts[first_instruction_account + 2].try_account_ref_mut()?;
+                            keyed_account_at_index(keyed_accounts, first_instruction_account + 2)?
+                                .try_account_ref_mut()?;
                         if from_account.lamports() != dup_account.lamports() {
                             return Err(InstructionError::InvalidArgument);
                         }
@@ -1017,12 +1120,16 @@ mod tests {
                     MockSystemInstruction::MultiBorrowMut => {
                         let from_lamports = {
                             let from_account =
-                                keyed_accounts[first_instruction_account].try_account_ref_mut()?;
+                                keyed_account_at_index(keyed_accounts, first_instruction_account)?
+                                    .try_account_ref_mut()?;
                             from_account.lamports()
                         };
                         let dup_lamports = {
-                            let dup_account = keyed_accounts[first_instruction_account + 2]
+                            let dup_account = keyed_account_at_index(
-                                .try_account_ref_mut()?;
+                                keyed_accounts,
+                                first_instruction_account + 2,
+                            )?
+                            .try_account_ref_mut()?;
                             dup_account.lamports()
                         };
                         if from_lamports != dup_lamports {
@@ -1032,18 +1139,24 @@ mod tests {
                     }
                     MockSystemInstruction::DoWork { lamports, data } => {
                         {
-                            let mut to_account = keyed_accounts[first_instruction_account + 1]
+                            let mut to_account = keyed_account_at_index(
-                                .try_account_ref_mut()?;
+                                keyed_accounts,
-                            let mut dup_account = keyed_accounts[first_instruction_account + 2]
+                                first_instruction_account + 1,
-                                .try_account_ref_mut()?;
+                            )?
+                            .try_account_ref_mut()?;
+                            let mut dup_account = keyed_account_at_index(
+                                keyed_accounts,
+                                first_instruction_account + 2,
+                            )?
+                            .try_account_ref_mut()?;
                             dup_account.checked_sub_lamports(lamports)?;
                             to_account.checked_add_lamports(lamports)?;
                             dup_account.set_data(vec![data]);
                         }
-                        keyed_accounts[first_instruction_account]
+                        keyed_account_at_index(keyed_accounts, first_instruction_account)?
                             .try_account_ref_mut()?
                             .checked_sub_lamports(lamports)?;
-                        keyed_accounts[first_instruction_account + 1]
+                        keyed_account_at_index(keyed_accounts, first_instruction_account + 1)?
                             .try_account_ref_mut()?
                             .checked_add_lamports(lamports)?;
                         Ok(())
@@ -1104,7 +1217,7 @@ mod tests {
             None,
             Arc::new(FeatureSet::all_enabled()),
             ComputeBudget::new(),
-            Rc::new(RefCell::new(MockComputeMeter::default())),
+            ThisComputeMeter::new_ref(std::i64::MAX as u64),
             &mut ExecuteDetailsTimings::default(),
             Arc::new(Accounts::default_for_tests()),
             &ancestors,
@@ -1139,7 +1252,7 @@ mod tests {
             None,
             Arc::new(FeatureSet::all_enabled()),
             ComputeBudget::new(),
-            Rc::new(RefCell::new(MockComputeMeter::default())),
+            ThisComputeMeter::new_ref(std::i64::MAX as u64),
             &mut ExecuteDetailsTimings::default(),
             Arc::new(Accounts::default_for_tests()),
             &ancestors,
@@ -1172,7 +1285,7 @@ mod tests {
             None,
             Arc::new(FeatureSet::all_enabled()),
             ComputeBudget::new(),
-            Rc::new(RefCell::new(MockComputeMeter::default())),
+            ThisComputeMeter::new_ref(std::i64::MAX as u64),
             &mut ExecuteDetailsTimings::default(),
             Arc::new(Accounts::default_for_tests()),
             &ancestors,
@@ -1233,24 +1346,7 @@ mod tests {
         );
         let message = Message::new(&[callee_instruction], None);
 
-        let ancestors = Ancestors::default();
+        let mut invoke_context = ThisInvokeContext::new_mock(&accounts, programs.as_slice());
-        let blockhash = Hash::default();
-        let fee_calculator = FeeCalculator::default();
-        let mut invoke_context = ThisInvokeContext::new(
-            Rent::default(),
-            &accounts,
-            programs.as_slice(),
-            None,
-            ComputeBudget::default(),
-            Rc::new(RefCell::new(MockComputeMeter::default())),
-            Rc::new(RefCell::new(Executors::default())),
-            None,
-            Arc::new(FeatureSet::all_enabled()),
-            Arc::new(Accounts::default_for_tests()),
-            &ancestors,
-            &blockhash,
-            &fee_calculator,
-        );
         invoke_context
             .push(&message, &caller_instruction, &program_indices[..1], None)
             .unwrap();
@@ -1378,24 +1474,7 @@ mod tests {
         );
         let message = Message::new(&[callee_instruction.clone()], None);
 
-        let ancestors = Ancestors::default();
+        let mut invoke_context = ThisInvokeContext::new_mock(&accounts, programs.as_slice());
-        let blockhash = Hash::default();
-        let fee_calculator = FeeCalculator::default();
-        let mut invoke_context = ThisInvokeContext::new(
-            Rent::default(),
-            &accounts,
-            programs.as_slice(),
-            None,
-            ComputeBudget::default(),
-            Rc::new(RefCell::new(MockComputeMeter::default())),
-            Rc::new(RefCell::new(Executors::default())),
-            None,
-            Arc::new(FeatureSet::all_enabled()),
-            Arc::new(Accounts::default_for_tests()),
-            &ancestors,
-            &blockhash,
-            &fee_calculator,
-        );
         invoke_context
             .push(&message, &caller_instruction, &program_indices, None)
             .unwrap();
@@ -1509,7 +1588,7 @@ mod tests {
             None,
             Arc::new(FeatureSet::all_enabled()),
             ComputeBudget::new(),
-            Rc::new(RefCell::new(MockComputeMeter::default())),
+            ThisComputeMeter::new_ref(std::i64::MAX as u64),
             &mut ExecuteDetailsTimings::default(),
             Arc::new(Accounts::default_for_tests()),
             &Ancestors::default(),

sdk/src/process_instruction.rs

@@ -121,12 +121,19 @@ pub trait InvokeContext {
         execute_us: u64,
         deserialize_us: u64,
     );
+    /// Get sysvars
+    #[allow(clippy::type_complexity)]
+    fn get_sysvars(&self) -> &RefCell<Vec<(Pubkey, Option<Rc<Vec<u8>>>)>>;
     /// Get sysvar data
     fn get_sysvar_data(&self, id: &Pubkey) -> Option<Rc<Vec<u8>>>;
     /// Get this invocation's compute budget
     fn get_compute_budget(&self) -> &ComputeBudget;
+    /// Set this invocation's blockhash
+    fn set_blockhash(&mut self, hash: Hash);
     /// Get this invocation's blockhash
     fn get_blockhash(&self) -> &Hash;
+    /// Set this invocation's `FeeCalculator`
+    fn set_fee_calculator(&mut self, fee_calculator: FeeCalculator);
     /// Get this invocation's `FeeCalculator`
     fn get_fee_calculator(&self) -> &FeeCalculator;
     /// Set the return data
@@ -350,7 +357,8 @@ pub struct MockInvokeContext<'a> {
     pub compute_meter: MockComputeMeter,
     pub programs: Vec<(Pubkey, ProcessInstructionWithContext)>,
     pub accounts: Vec<(Pubkey, Rc<RefCell<AccountSharedData>>)>,
-    pub sysvars: Vec<(Pubkey, Option<Rc<Vec<u8>>>)>,
+    #[allow(clippy::type_complexity)]
+    pub sysvars: RefCell<Vec<(Pubkey, Option<Rc<Vec<u8>>>)>>,
     pub disabled_features: HashSet<Pubkey>,
     pub blockhash: Hash,
     pub fee_calculator: FeeCalculator,
@@ -369,7 +377,7 @@ impl<'a> MockInvokeContext<'a> {
             },
             programs: vec![],
             accounts: vec![],
-            sysvars: vec![],
+            sysvars: RefCell::new(Vec::new()),
             disabled_features: HashSet::default(),
             blockhash: Hash::default(),
             fee_calculator: FeeCalculator::default(),
@@ -390,21 +398,6 @@ impl<'a> MockInvokeContext<'a> {
     }
 }
 
-pub fn mock_set_sysvar<T: Sysvar>(
-    mock_invoke_context: &mut MockInvokeContext,
-    id: Pubkey,
-    sysvar: T,
-) -> Result<(), InstructionError> {
-    let mut data = Vec::with_capacity(T::size_of());
-
-    bincode::serialize_into(&mut data, &sysvar).map_err(|err| {
-        ic_msg!(mock_invoke_context, "Unable to serialize sysvar: {:?}", err);
-        InstructionError::GenericError
-    })?;
-    mock_invoke_context.sysvars.push((id, Some(Rc::new(data))));
-    Ok(())
-}
-
 impl<'a> InvokeContext for MockInvokeContext<'a> {
     fn push(
         &mut self,
@@ -498,17 +491,28 @@ impl<'a> InvokeContext for MockInvokeContext<'a> {
         _deserialize_us: u64,
     ) {
     }
+    #[allow(clippy::type_complexity)]
+    fn get_sysvars(&self) -> &RefCell<Vec<(Pubkey, Option<Rc<Vec<u8>>>)>> {
+        &self.sysvars
+    }
     fn get_sysvar_data(&self, id: &Pubkey) -> Option<Rc<Vec<u8>>> {
         self.sysvars
+            .borrow()
             .iter()
             .find_map(|(key, sysvar)| if id == key { sysvar.clone() } else { None })
     }
     fn get_compute_budget(&self) -> &ComputeBudget {
         &self.compute_budget
     }
+    fn set_blockhash(&mut self, hash: Hash) {
+        self.blockhash = hash;
+    }
     fn get_blockhash(&self) -> &Hash {
         &self.blockhash
     }
+    fn set_fee_calculator(&mut self, fee_calculator: FeeCalculator) {
+        self.fee_calculator = fee_calculator;
+    }
     fn get_fee_calculator(&self) -> &FeeCalculator {
         &self.fee_calculator
     }