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Generalize engine trait (#6591)

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* move common forks and parameters to common params

* port specs over to new format

* fix RPC tests

* parity-machine skeleton

* remove block type

* extract out ethereum-specific methods into EthereumMachine

* beginning to integrate Machine into engines. dealing with stale transitions in Ethash

* initial porting to machine

* move block reward back into engine

* abstract block reward logic

* move last hash and DAO HF logic into machine

* begin making engine function parameters generic

* abstract epoch verifier and ethash block reward logic

* instantiate special ethereummachine for ethash in spec

* optional full verification in verify_block_family

* re-instate tx_filter in a way that works for all engines

* fix warnings

* fix most tests, further generalize engine trait

* uncomment nullengine, get ethcore tests compiling

* fix warnings

* update a bunch of specs

* re-enable engine signer, validator set, and transition handler

* migrate basic_authority engine

* move last hashes into executedblock

* port tendermint

* make all ethcore tests pass

* json-tests compilation

* fix RPC tests: change in gas limit for new block changed PoW hash

* fix minor grumbles

* validate chainspecs

* fix broken import

* fix transaction verification for pre-homestead
This commit is contained in:
Robert Habermeier
2017-09-26 14:19:08 +02:00
committed by Gav Wood
parent d8af9f4e7b
commit bc167a211b
85 changed files with 2233 additions and 1923 deletions
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107
ethcore/src/executive.rs
View File

@@ -23,7 +23,7 @@ use bigint::hash::H256;
use util::*;
use bytes::{Bytes, BytesRef};
use state::{Backend as StateBackend, State, Substate, CleanupMode};
use engines::Engine;
use machine::EthereumMachine as Machine;
use vm::EnvInfo;
use error::ExecutionError;
use evm::{CallType, Factory, Finalize, FinalizationResult};
@@ -154,10 +154,8 @@ impl TransactOptions<trace::NoopTracer, trace::NoopVMTracer> {
}
}
pub fn executor<E>(engine: &E, vm_factory: &Factory, params: &ActionParams)
-> Box<vm::Vm> where E: Engine + ?Sized
{
if engine.supports_wasm() && params.code.as_ref().map_or(false, |code| code.len() > 4 && &code[0..4] == WASM_MAGIC_NUMBER) {
pub fn executor(machine: &Machine, vm_factory: &Factory, params: &ActionParams) -> Box<vm::Vm> {
if machine.supports_wasm() && params.code.as_ref().map_or(false, |code| code.len() > 4 && &code[0..4] == WASM_MAGIC_NUMBER) {
Box::new(
wasm::WasmInterpreter::new()
// prefer to fail fast
@@ -169,32 +167,32 @@ pub fn executor<E>(engine: &E, vm_factory: &Factory, params: &ActionParams)
}
/// Transaction executor.
pub struct Executive<'a, B: 'a + StateBackend, E: 'a + Engine + ?Sized> {
pub struct Executive<'a, B: 'a + StateBackend> {
state: &'a mut State<B>,
info: &'a EnvInfo,
engine: &'a E,
machine: &'a Machine,
depth: usize,
static_flag: bool,
}
impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
impl<'a, B: 'a + StateBackend> Executive<'a, B> {
/// Basic constructor.
pub fn new(state: &'a mut State<B>, info: &'a EnvInfo, engine: &'a E) -> Self {
pub fn new(state: &'a mut State<B>, info: &'a EnvInfo, machine: &'a Machine) -> Self {
Executive {
state: state,
info: info,
engine: engine,
machine: machine,
depth: 0,
static_flag: false,
}
}
/// Populates executive from parent properties. Increments executive depth.
pub fn from_parent(state: &'a mut State<B>, info: &'a EnvInfo, engine: &'a E, parent_depth: usize, static_flag: bool) -> Self {
pub fn from_parent(state: &'a mut State<B>, info: &'a EnvInfo, machine: &'a Machine, parent_depth: usize, static_flag: bool) -> Self {
Executive {
state: state,
info: info,
engine: engine,
machine: machine,
depth: parent_depth + 1,
static_flag: static_flag,
}
@@ -209,9 +207,9 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
tracer: &'any mut T,
vm_tracer: &'any mut V,
static_call: bool,
) -> Externalities<'any, T, V, B, E> where T: Tracer, V: VMTracer {
) -> Externalities<'any, T, V, B> where T: Tracer, V: VMTracer {
let is_static = self.static_flag || static_call;
Externalities::new(self.state, self.info, self.engine, self.depth, origin_info, substate, output, tracer, vm_tracer, is_static)
Externalities::new(self.state, self.info, self.machine, self.depth, origin_info, substate, output, tracer, vm_tracer, is_static)
}
/// This function should be used to execute transaction.
@@ -250,7 +248,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
let sender = t.sender();
let nonce = self.state.nonce(&sender)?;
let schedule = self.engine.schedule(self.info.number);
let schedule = self.machine.schedule(self.info.number);
let base_gas_required = U256::from(t.gas_required(&schedule));
if t.gas < base_gas_required {
@@ -298,7 +296,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
let (result, output) = match t.action {
Action::Create => {
let (new_address, code_hash) = contract_address(self.engine.create_address_scheme(self.info.number), &sender, &nonce, &t.data);
let (new_address, code_hash) = contract_address(self.machine.create_address_scheme(self.info.number), &sender, &nonce, &t.data);
let params = ActionParams {
code_address: new_address.clone(),
code_hash: code_hash,
@@ -355,19 +353,19 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
let vm_factory = self.state.vm_factory();
let mut ext = self.as_externalities(OriginInfo::from(&params), unconfirmed_substate, output_policy, tracer, vm_tracer, static_call);
trace!(target: "executive", "ext.schedule.have_delegate_call: {}", ext.schedule().have_delegate_call);
return executor(self.engine, &vm_factory, &params).exec(params, &mut ext).finalize(ext);
return executor(self.machine, &vm_factory, &params).exec(params, &mut ext).finalize(ext);
}
// Start in new thread to reset stack
// TODO [todr] No thread builder yet, so we need to reset once for a while
// https://github.com/aturon/crossbeam/issues/16
crossbeam::scope(|scope| {
let engine = self.engine;
let machine = self.machine;
let vm_factory = self.state.vm_factory();
let mut ext = self.as_externalities(OriginInfo::from(&params), unconfirmed_substate, output_policy, tracer, vm_tracer, static_call);
scope.spawn(move || {
executor(engine, &vm_factory, &params).exec(params, &mut ext).finalize(ext)
executor(machine, &vm_factory, &params).exec(params, &mut ext).finalize(ext)
})
}).join()
}
@@ -396,7 +394,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
// backup used in case of running out of gas
self.state.checkpoint();
let schedule = self.engine.schedule(self.info.number);
let schedule = self.machine.schedule(self.info.number);
// at first, transfer value to destination
if let ActionValue::Transfer(val) = params.value {
@@ -404,7 +402,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
}
// if destination is builtin, try to execute it
if let Some(builtin) = self.engine.builtin(&params.code_address, self.info.number) {
if let Some(builtin) = self.machine.builtin(&params.code_address, self.info.number) {
// Engines aren't supposed to return builtins until activation, but
// prefer to fail rather than silently break consensus.
if !builtin.is_active(self.info.number) {
@@ -542,7 +540,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
let mut unconfirmed_substate = Substate::new();
// create contract and transfer value to it if necessary
let schedule = self.engine.schedule(self.info.number);
let schedule = self.machine.schedule(self.info.number);
let nonce_offset = if schedule.no_empty {1} else {0}.into();
let prev_bal = self.state.balance(&params.address)?;
if let ActionValue::Transfer(val) = params.value {
@@ -591,7 +589,7 @@ impl<'a, B: 'a + StateBackend, E: Engine + ?Sized> Executive<'a, B, E> {
trace: Vec<FlatTrace>,
vm_trace: Option<VMTrace>
) -> ExecutionResult {
let schedule = self.engine.schedule(self.info.number);
let schedule = self.machine.schedule(self.info.number);
// refunds from SSTORE nonzero -> zero
let sstore_refunds = U256::from(schedule.sstore_refund_gas) * substate.sstore_clears_count;
@@ -700,6 +698,7 @@ mod tests {
use vm::{ActionParams, ActionValue, CallType, EnvInfo, CreateContractAddress};
use evm::{Factory, VMType};
use error::ExecutionError;
use machine::EthereumMachine;
use state::{Substate, CleanupMode};
use tests::helpers::*;
use trace::trace;
@@ -707,6 +706,12 @@ mod tests {
use trace::{VMTrace, VMOperation, VMExecutedOperation, MemoryDiff, StorageDiff, VMTracer, NoopVMTracer, ExecutiveVMTracer};
use transaction::{Action, Transaction};
fn make_frontier_machine(max_depth: usize) -> EthereumMachine {
let mut machine = ::ethereum::new_frontier_test_machine();
machine.set_schedule_creation_rules(Box::new(move |s, _| s.max_depth = max_depth));
machine
}
#[test]
fn test_contract_address() {
let address = Address::from_str("0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6").unwrap();
@@ -728,11 +733,11 @@ mod tests {
let mut state = get_temp_state_with_factory(factory);
state.add_balance(&sender, &U256::from(0x100u64), CleanupMode::NoEmpty).unwrap();
let info = EnvInfo::default();
let engine = TestEngine::new(0);
let machine = make_frontier_machine(0);
let mut substate = Substate::new();
let FinalizationResult { gas_left, .. } = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
ex.create(params, &mut substate, &mut None, &mut NoopTracer, &mut NoopVMTracer).unwrap()
};
@@ -786,11 +791,11 @@ mod tests {
let mut state = get_temp_state_with_factory(factory);
state.add_balance(&sender, &U256::from(100), CleanupMode::NoEmpty).unwrap();
let info = EnvInfo::default();
let engine = TestEngine::new(0);
let machine = make_frontier_machine(0);
let mut substate = Substate::new();
let FinalizationResult { gas_left, .. } = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
ex.create(params, &mut substate, &mut None, &mut NoopTracer, &mut NoopVMTracer).unwrap()
};
@@ -842,13 +847,13 @@ mod tests {
let mut state = get_temp_state();
state.add_balance(&sender, &U256::from(100), CleanupMode::NoEmpty).unwrap();
let info = EnvInfo::default();
let engine = TestEngine::new(5);
let machine = make_frontier_machine(5);
let mut substate = Substate::new();
let mut tracer = ExecutiveTracer::default();
let mut vm_tracer = ExecutiveVMTracer::toplevel();
let FinalizationResult { gas_left, .. } = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
let output = BytesRef::Fixed(&mut[0u8;0]);
ex.call(params, &mut substate, output, &mut tracer, &mut vm_tracer).unwrap()
};
@@ -951,13 +956,13 @@ mod tests {
let mut state = get_temp_state();
state.add_balance(&sender, &U256::from(100), CleanupMode::NoEmpty).unwrap();
let info = EnvInfo::default();
let engine = TestEngine::new(5);
let machine = make_frontier_machine(5);
let mut substate = Substate::new();
let mut tracer = ExecutiveTracer::default();
let mut vm_tracer = ExecutiveVMTracer::toplevel();
let FinalizationResult { gas_left, .. } = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
ex.create(params.clone(), &mut substate, &mut None, &mut tracer, &mut vm_tracer).unwrap()
};
@@ -1038,11 +1043,11 @@ mod tests {
let mut state = get_temp_state_with_factory(factory);
state.add_balance(&sender, &U256::from(100), CleanupMode::NoEmpty).unwrap();
let info = EnvInfo::default();
let engine = TestEngine::new(0);
let machine = make_frontier_machine(0);
let mut substate = Substate::new();
let FinalizationResult { gas_left, .. } = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
ex.create(params, &mut substate, &mut None, &mut NoopTracer, &mut NoopVMTracer).unwrap()
};
@@ -1089,11 +1094,11 @@ mod tests {
let mut state = get_temp_state_with_factory(factory);
state.add_balance(&sender, &U256::from(100), CleanupMode::NoEmpty).unwrap();
let info = EnvInfo::default();
let engine = TestEngine::new(1024);
let machine = make_frontier_machine(1024);
let mut substate = Substate::new();
{
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
ex.create(params, &mut substate, &mut None, &mut NoopTracer, &mut NoopVMTracer).unwrap();
}
@@ -1149,11 +1154,11 @@ mod tests {
state.add_balance(&sender, &U256::from(100_000), CleanupMode::NoEmpty).unwrap();
let info = EnvInfo::default();
let engine = TestEngine::new(0);
let machine = make_frontier_machine(0);
let mut substate = Substate::new();
let FinalizationResult { gas_left, .. } = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
ex.call(params, &mut substate, BytesRef::Fixed(&mut []), &mut NoopTracer, &mut NoopVMTracer).unwrap()
};
@@ -1193,11 +1198,11 @@ mod tests {
let mut state = get_temp_state_with_factory(factory);
state.init_code(&address, code).unwrap();
let info = EnvInfo::default();
let engine = TestEngine::new(0);
let machine = make_frontier_machine(0);
let mut substate = Substate::new();
let FinalizationResult { gas_left, .. } = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
ex.call(params, &mut substate, BytesRef::Fixed(&mut []), &mut NoopTracer, &mut NoopVMTracer).unwrap()
};
@@ -1226,10 +1231,10 @@ mod tests {
state.add_balance(&sender, &U256::from(18), CleanupMode::NoEmpty).unwrap();
let mut info = EnvInfo::default();
info.gas_limit = U256::from(100_000);
let engine = TestEngine::new(0);
let machine = make_frontier_machine(0);
let executed = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
let opts = TransactOptions::with_no_tracing();
ex.transact(&t, opts).unwrap()
};
@@ -1263,10 +1268,10 @@ mod tests {
state.add_balance(&sender, &U256::from(17), CleanupMode::NoEmpty).unwrap();
let mut info = EnvInfo::default();
info.gas_limit = U256::from(100_000);
let engine = TestEngine::new(0);
let machine = make_frontier_machine(0);
let res = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
let opts = TransactOptions::with_no_tracing();
ex.transact(&t, opts)
};
@@ -1296,10 +1301,10 @@ mod tests {
let mut info = EnvInfo::default();
info.gas_used = U256::from(20_000);
info.gas_limit = U256::from(100_000);
let engine = TestEngine::new(0);
let machine = make_frontier_machine(0);
let res = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
let opts = TransactOptions::with_no_tracing();
ex.transact(&t, opts)
};
@@ -1329,10 +1334,10 @@ mod tests {
state.add_balance(&sender, &U256::from(100_017), CleanupMode::NoEmpty).unwrap();
let mut info = EnvInfo::default();
info.gas_limit = U256::from(100_000);
let engine = TestEngine::new(0);
let machine = make_frontier_machine(0);
let res = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
let opts = TransactOptions::with_no_tracing();
ex.transact(&t, opts)
};
@@ -1362,11 +1367,11 @@ mod tests {
let mut state = get_temp_state_with_factory(factory);
state.add_balance(&sender, &U256::from_str("152d02c7e14af6800000").unwrap(), CleanupMode::NoEmpty).unwrap();
let info = EnvInfo::default();
let engine = TestEngine::new(0);
let machine = make_frontier_machine(0);
let mut substate = Substate::new();
let result = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
ex.create(params, &mut substate, &mut None, &mut NoopTracer, &mut NoopVMTracer)
};
@@ -1397,12 +1402,12 @@ mod tests {
let mut state = get_temp_state_with_factory(factory);
state.add_balance(&sender, &U256::from_str("152d02c7e14af68000000").unwrap(), CleanupMode::NoEmpty).unwrap();
let info = EnvInfo::default();
let engine = TestEngine::new_byzantium();
let machine = ::ethereum::new_byzantium_test_machine();
let mut substate = Substate::new();
let mut output = [0u8; 14];
let FinalizationResult { gas_left: result, .. } = {
let mut ex = Executive::new(&mut state, &info, &engine);
let mut ex = Executive::new(&mut state, &info, &machine);
ex.call(params, &mut substate, BytesRef::Fixed(&mut output), &mut NoopTracer, &mut NoopVMTracer).unwrap()
};