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Merge pull request #1149 from rphmeier/rpc-earliest-specific 

Support "earliest" and specific block parameters in RPC where possible
This commit is contained in:
Arkadiy Paronyan 2016-05-27 16:39:08 +02:00
parent ca008fb541 a272f8570c
commit 72031d6f95
7 changed files with 116 additions and 43 deletions
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29
ethcore/src/client/client.rs
View File

@ -346,6 +346,22 @@ impl<V> Client<V> where V: Verifier {
imported
}
/// Attempt to get a copy of a specific block's state.
///
/// This will not fail if given BlockID::Latest.
/// Otherwise, this can fail (but may not) if the DB prunes state.
pub fn state_at(&self, id: BlockID) -> Option<State> {
// fast path for latest state.
if let BlockID::Latest = id.clone() {
return Some(self.state())
}
self.block_header(id).map(|header| {
let db = self.state_db.lock().unwrap().boxed_clone();
State::from_existing(db, HeaderView::new(&header).state_root(), self.engine.account_start_nonce())
})
}
/// Get a copy of the best block's state.
pub fn state(&self) -> State {
State::from_existing(self.state_db.lock().unwrap().boxed_clone(), HeaderView::new(&self.best_block_header()).state_root(), self.engine.account_start_nonce())
@ -541,10 +557,11 @@ impl<V> BlockChainClient for Client<V> where V: Verifier {
Self::block_hash(&self.chain, id).and_then(|hash| self.chain.block_details(&hash)).map(|d| d.total_difficulty)
}
fn nonce(&self, address: &Address) -> U256 {
self.state().nonce(address)
fn nonce(&self, address: &Address, id: BlockID) -> Option<U256> {
self.state_at(id).map(|s| s.nonce(address))
}
fn block_hash(&self, id: BlockID) -> Option<H256> {
Self::block_hash(&self.chain, id)
}
@ -553,12 +570,12 @@ impl<V> BlockChainClient for Client<V> where V: Verifier {
self.state().code(address)
}
fn balance(&self, address: &Address) -> U256 {
self.state().balance(address)
fn balance(&self, address: &Address, id: BlockID) -> Option<U256> {
self.state_at(id).map(|s| s.balance(address))
}
fn storage_at(&self, address: &Address, position: &H256) -> H256 {
self.state().storage_at(address, position)
fn storage_at(&self, address: &Address, position: &H256, id: BlockID) -> Option<H256> {
self.state_at(id).map(|s| s.storage_at(address, position))
}
fn transaction(&self, id: TransactionID) -> Option<LocalizedTransaction> {

40
ethcore/src/client/mod.rs
View File

@ -65,8 +65,16 @@ pub trait BlockChainClient : Sync + Send {
/// Get block total difficulty.
fn block_total_difficulty(&self, id: BlockID) -> Option<U256>;
/// Get address nonce.
fn nonce(&self, address: &Address) -> U256;
/// Attempt to get address nonce at given block.
/// May not fail on BlockID::Latest.
fn nonce(&self, address: &Address, id: BlockID) -> Option<U256>;
/// Get address nonce at the latest block's state.
fn latest_nonce(&self, address: &Address) -> U256 {
self.nonce(address, BlockID::Latest)
.expect("nonce will return Some when given BlockID::Latest. nonce was given BlockID::Latest. \
Therefore nonce has returned Some; qed")
}
/// Get block hash.
fn block_hash(&self, id: BlockID) -> Option<H256>;
@ -74,11 +82,31 @@ pub trait BlockChainClient : Sync + Send {
/// Get address code.
fn code(&self, address: &Address) -> Option<Bytes>;
/// Get address balance.
fn balance(&self, address: &Address) -> U256;
/// Get address balance at the given block's state.
///
/// May not return None if given BlockID::Latest.
/// Returns None if and only if the block's root hash has been pruned from the DB.
fn balance(&self, address: &Address, id: BlockID) -> Option<U256>;
/// Get value of the storage at given position.
fn storage_at(&self, address: &Address, position: &H256) -> H256;
/// Get address balance at the latest block's state.
fn latest_balance(&self, address: &Address) -> U256 {
self.balance(address, BlockID::Latest)
.expect("balance will return Some if given BlockID::Latest. balance was given BlockID::Latest \
Therefore balance has returned Some; qed")
}
/// Get value of the storage at given position at the given block's state.
///
/// May not return None if given BlockID::Latest.
/// Returns None if and only if the block's root hash has been pruned from the DB.
fn storage_at(&self, address: &Address, position: &H256, id: BlockID) -> Option<H256>;
/// Get value of the storage at given position at the latest block's state.
fn latest_storage_at(&self, address: &Address, position: &H256) -> H256 {
self.storage_at(address, position, BlockID::Latest)
.expect("storage_at will return Some if given BlockID::Latest. storage_at was given BlockID::Latest. \
Therefore storage_at has returned Some; qed")
}
/// Get transaction with given hash.
fn transaction(&self, id: TransactionID) -> Option<LocalizedTransaction>;

23
ethcore/src/client/test_client.rs
View File

@ -245,20 +245,31 @@ impl BlockChainClient for TestBlockChainClient {
Self::block_hash(self, id)
}
fn nonce(&self, address: &Address) -> U256 {
self.nonces.read().unwrap().get(address).cloned().unwrap_or_else(U256::zero)
fn nonce(&self, address: &Address, id: BlockID) -> Option<U256> {
match id {
BlockID::Latest => Some(self.nonces.read().unwrap().get(address).cloned().unwrap_or_else(U256::zero)),
_ => None,
}
}
fn code(&self, address: &Address) -> Option<Bytes> {
self.code.read().unwrap().get(address).cloned()
}
fn balance(&self, address: &Address) -> U256 {
self.balances.read().unwrap().get(address).cloned().unwrap_or_else(U256::zero)
fn balance(&self, address: &Address, id: BlockID) -> Option<U256> {
if let BlockID::Latest = id {
Some(self.balances.read().unwrap().get(address).cloned().unwrap_or_else(U256::zero))
} else {
None
}
}
fn storage_at(&self, address: &Address, position: &H256) -> H256 {
self.storage.read().unwrap().get(&(address.clone(), position.clone())).cloned().unwrap_or_else(H256::new)
fn storage_at(&self, address: &Address, position: &H256, id: BlockID) -> Option<H256> {
if let BlockID::Latest = id {
Some(self.storage.read().unwrap().get(&(address.clone(), position.clone())).cloned().unwrap_or_else(H256::new))
} else {
None
}
}
fn transaction(&self, _id: TransactionID) -> Option<LocalizedTransaction> {

6
miner/src/lib.rs
View File

@ -63,8 +63,8 @@ pub use external::{ExternalMiner, ExternalMinerService};
use std::collections::BTreeMap;
use util::{H256, U256, Address, Bytes};
use ethcore::client::{BlockChainClient, Executed};
use ethcore::block::{ClosedBlock};
use ethcore::receipt::{Receipt};
use ethcore::block::ClosedBlock;
use ethcore::receipt::Receipt;
use ethcore::error::{Error, ExecutionError};
use ethcore::transaction::SignedTransaction;
@ -154,7 +154,7 @@ pub trait MinerService : Send + Sync {
/// Suggested gas limit.
fn sensible_gas_limit(&self) -> U256 { x!(21000) }
/// Account balance
/// Latest account balance in pending state.
fn balance(&self, chain: &BlockChainClient, address: &Address) -> U256;
/// Call into contract code using pending state.

22
miner/src/miner.rs
View File

@ -167,8 +167,8 @@ impl Miner {
};
let mut queue = self.transaction_queue.lock().unwrap();
let fetch_account = |a: &Address| AccountDetails {
nonce: chain.nonce(a),
balance: chain.balance(a),
nonce: chain.latest_nonce(a),
balance: chain.latest_balance(a),
};
for hash in invalid_transactions.into_iter() {
queue.remove_invalid(&hash, &fetch_account);
@ -290,17 +290,23 @@ impl MinerService for Miner {
fn balance(&self, chain: &BlockChainClient, address: &Address) -> U256 {
let sealing_work = self.sealing_work.lock().unwrap();
sealing_work.peek_last_ref().map_or_else(|| chain.balance(address), |b| b.block().fields().state.balance(address))
sealing_work.peek_last_ref().map_or_else(
|| chain.latest_balance(address),
|b| b.block().fields().state.balance(address)
)
}
fn storage_at(&self, chain: &BlockChainClient, address: &Address, position: &H256) -> H256 {
let sealing_work = self.sealing_work.lock().unwrap();
sealing_work.peek_last_ref().map_or_else(|| chain.storage_at(address, position), |b| b.block().fields().state.storage_at(address, position))
sealing_work.peek_last_ref().map_or_else(
|| chain.latest_storage_at(address, position),
|b| b.block().fields().state.storage_at(address, position)
)
}
fn nonce(&self, chain: &BlockChainClient, address: &Address) -> U256 {
let sealing_work = self.sealing_work.lock().unwrap();
sealing_work.peek_last_ref().map_or_else(|| chain.nonce(address), |b| b.block().fields().state.nonce(address))
sealing_work.peek_last_ref().map_or_else(|| chain.latest_nonce(address), |b| b.block().fields().state.nonce(address))
}
fn code(&self, chain: &BlockChainClient, address: &Address) -> Option<Bytes> {
@ -545,8 +551,8 @@ impl MinerService for Miner {
let _sender = tx.sender();
}
let _ = self.import_transactions(txs, |a| AccountDetails {
nonce: chain.nonce(a),
balance: chain.balance(a),
nonce: chain.latest_nonce(a),
balance: chain.latest_balance(a),
});
});
}
@ -566,7 +572,7 @@ impl MinerService for Miner {
})
.collect::<HashSet<Address>>();
for sender in to_remove.into_iter() {
transaction_queue.remove_all(sender, chain.nonce(&sender));
transaction_queue.remove_all(sender, chain.latest_nonce(&sender));
}
});
}

35
rpc/src/v1/impls/eth.rs
View File

@ -26,7 +26,7 @@ use ethminer::{MinerService, AccountDetails, ExternalMinerService};
use jsonrpc_core::*;
use util::numbers::*;
use util::sha3::*;
use util::bytes::{ToPretty};
use util::bytes::ToPretty;
use util::rlp::{encode, decode, UntrustedRlp, View};
use ethcore::client::{BlockChainClient, BlockID, TransactionID, UncleID};
use ethcore::block::IsBlock;
@ -164,7 +164,7 @@ impl<C, S, A, M, EM> EthClient<C, S, A, M, EM> where
.or_else(|| miner
.last_nonce(&request.from)
.map(|nonce| nonce + U256::one()))
.unwrap_or_else(|| client.nonce(&request.from)),
.unwrap_or_else(|| client.latest_nonce(&request.from)),
action: request.to.map_or(Action::Create, Action::Call),
gas: request.gas.unwrap_or_else(|| miner.sensible_gas_limit()),
gas_price: request.gas_price.unwrap_or_else(|| miner.sensible_gas_price()),
@ -181,7 +181,7 @@ impl<C, S, A, M, EM> EthClient<C, S, A, M, EM> where
let miner = take_weak!(self.miner);
let from = request.from.unwrap_or(Address::zero());
Ok(EthTransaction {
nonce: request.nonce.unwrap_or_else(|| client.nonce(&from)),
nonce: request.nonce.unwrap_or_else(|| client.latest_nonce(&from)),
action: request.to.map_or(Action::Create, Action::Call),
gas: request.gas.unwrap_or(U256::from(50_000_000)),
gas_price: request.gas_price.unwrap_or_else(|| miner.sensible_gas_price()),
@ -199,8 +199,8 @@ impl<C, S, A, M, EM> EthClient<C, S, A, M, EM> where
miner.import_own_transaction(client.deref(), signed_transaction, |a: &Address| {
AccountDetails {
nonce: client.nonce(&a),
balance: client.balance(&a),
nonce: client.latest_nonce(&a),
balance: client.latest_balance(&a),
}
})
};
@ -257,6 +257,17 @@ fn pending_logs<M>(miner: &M, filter: &EthcoreFilter) -> Vec<Log> where M: Miner
result
}
// must be in range [-32099, -32000]
const UNSUPPORTED_REQUEST_CODE: i64 = -32000;
fn make_unsupported_err() -> Error {
Error {
code: ErrorCode::ServerError(UNSUPPORTED_REQUEST_CODE),
message: "Unsupported request.".into(),
data: None
}
}
impl<C, S, A, M, EM> Eth for EthClient<C, S, A, M, EM> where
C: BlockChainClient + 'static,
S: SyncProvider + 'static,
@ -341,18 +352,19 @@ impl<C, S, A, M, EM> Eth for EthClient<C, S, A, M, EM> where
fn balance(&self, params: Params) -> Result<Value, Error> {
from_params_default_second(params)
.and_then(|(address, block_number,)| match block_number {
BlockNumber::Latest => to_value(&take_weak!(self.client).balance(&address)),
BlockNumber::Pending => to_value(&take_weak!(self.miner).balance(take_weak!(self.client).deref(), &address)),
_ => Err(Error::invalid_params()),
id => to_value(&try!(take_weak!(self.client).balance(&address, id.into()).ok_or_else(make_unsupported_err))),
})
}
fn storage_at(&self, params: Params) -> Result<Value, Error> {
from_params_default_third::<Address, U256>(params)
.and_then(|(address, position, block_number,)| match block_number {
BlockNumber::Pending => to_value(&U256::from(take_weak!(self.miner).storage_at(take_weak!(self.client).deref(), &address, &H256::from(position)))),
BlockNumber::Latest => to_value(&U256::from(take_weak!(self.client).storage_at(&address, &H256::from(position)))),
_ => Err(Error::invalid_params()),
BlockNumber::Pending => to_value(&U256::from(take_weak!(self.miner).storage_at(&*take_weak!(self.client), &address, &H256::from(position)))),
id => match take_weak!(self.client).storage_at(&address, &H256::from(position), id.into()) {
Some(s) => to_value(&U256::from(s)),
None => Err(make_unsupported_err()), // None is only returned on unsupported requests.
}
})
}
@ -360,8 +372,7 @@ impl<C, S, A, M, EM> Eth for EthClient<C, S, A, M, EM> where
from_params_default_second(params)
.and_then(|(address, block_number,)| match block_number {
BlockNumber::Pending => to_value(&take_weak!(self.miner).nonce(take_weak!(self.client).deref(), &address)),
BlockNumber::Latest => to_value(&take_weak!(self.client).nonce(&address)),
_ => Err(Error::invalid_params()),
id => to_value(&take_weak!(self.client).nonce(&address, id.into())),
})
}

4
sync/src/chain.rs
View File

@ -900,8 +900,8 @@ impl ChainSync {
}
let chain = io.chain();
let fetch_account = |a: &Address| AccountDetails {
nonce: chain.nonce(a),
balance: chain.balance(a),
nonce: chain.latest_nonce(a),
balance: chain.latest_balance(a),
};
let _ = self.miner.import_transactions(transactions, fetch_account);
Ok(())