@ -1,246 +0,0 @@
|
||||
use crate::bank::Bank;
|
||||
use solana_sdk::account::Account;
|
||||
use solana_sdk::client::{AsyncClient, Client, SyncClient};
|
||||
use solana_sdk::fee_calculator::FeeCalculator;
|
||||
use solana_sdk::hash::Hash;
|
||||
use solana_sdk::instruction::Instruction;
|
||||
use solana_sdk::message::Message;
|
||||
use solana_sdk::pubkey::Pubkey;
|
||||
use solana_sdk::signature::Signature;
|
||||
use solana_sdk::signature::{Keypair, KeypairUtil};
|
||||
use solana_sdk::system_instruction;
|
||||
use solana_sdk::transaction::{self, Transaction};
|
||||
use solana_sdk::transport::{Result, TransportError};
|
||||
use std::io;
|
||||
use std::sync::mpsc::{channel, Receiver, Sender};
|
||||
use std::sync::Arc;
|
||||
use std::sync::Mutex;
|
||||
use std::thread::{sleep, Builder};
|
||||
use std::time::{Duration, Instant};
|
||||
|
||||
pub struct BankClient {
|
||||
bank: Arc<Bank>,
|
||||
transaction_sender: Mutex<Sender<Transaction>>,
|
||||
}
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||||
|
||||
impl Client for BankClient {
|
||||
fn tpu_addr(&self) -> String {
|
||||
"Local BankClient".to_string()
|
||||
}
|
||||
}
|
||||
|
||||
impl AsyncClient for BankClient {
|
||||
fn async_send_transaction(&self, transaction: Transaction) -> io::Result<Signature> {
|
||||
let signature = transaction.signatures.get(0).cloned().unwrap_or_default();
|
||||
let transaction_sender = self.transaction_sender.lock().unwrap();
|
||||
transaction_sender.send(transaction).unwrap();
|
||||
Ok(signature)
|
||||
}
|
||||
|
||||
fn async_send_message(
|
||||
&self,
|
||||
keypairs: &[&Keypair],
|
||||
message: Message,
|
||||
recent_blockhash: Hash,
|
||||
) -> io::Result<Signature> {
|
||||
let transaction = Transaction::new(&keypairs, message, recent_blockhash);
|
||||
self.async_send_transaction(transaction)
|
||||
}
|
||||
|
||||
fn async_send_instruction(
|
||||
&self,
|
||||
keypair: &Keypair,
|
||||
instruction: Instruction,
|
||||
recent_blockhash: Hash,
|
||||
) -> io::Result<Signature> {
|
||||
let message = Message::new(vec![instruction]);
|
||||
self.async_send_message(&[keypair], message, recent_blockhash)
|
||||
}
|
||||
|
||||
/// Transfer `lamports` from `keypair` to `pubkey`
|
||||
fn async_transfer(
|
||||
&self,
|
||||
lamports: u64,
|
||||
keypair: &Keypair,
|
||||
pubkey: &Pubkey,
|
||||
recent_blockhash: Hash,
|
||||
) -> io::Result<Signature> {
|
||||
let transfer_instruction =
|
||||
system_instruction::transfer(&keypair.pubkey(), pubkey, lamports);
|
||||
self.async_send_instruction(keypair, transfer_instruction, recent_blockhash)
|
||||
}
|
||||
}
|
||||
|
||||
impl SyncClient for BankClient {
|
||||
fn send_message(&self, keypairs: &[&Keypair], message: Message) -> Result<Signature> {
|
||||
let blockhash = self.bank.last_blockhash();
|
||||
let transaction = Transaction::new(&keypairs, message, blockhash);
|
||||
self.bank.process_transaction(&transaction)?;
|
||||
Ok(transaction.signatures.get(0).cloned().unwrap_or_default())
|
||||
}
|
||||
|
||||
/// Create and process a transaction from a single instruction.
|
||||
fn send_instruction(&self, keypair: &Keypair, instruction: Instruction) -> Result<Signature> {
|
||||
let message = Message::new(vec![instruction]);
|
||||
self.send_message(&[keypair], message)
|
||||
}
|
||||
|
||||
/// Transfer `lamports` from `keypair` to `pubkey`
|
||||
fn transfer(&self, lamports: u64, keypair: &Keypair, pubkey: &Pubkey) -> Result<Signature> {
|
||||
let transfer_instruction =
|
||||
system_instruction::transfer(&keypair.pubkey(), pubkey, lamports);
|
||||
self.send_instruction(keypair, transfer_instruction)
|
||||
}
|
||||
|
||||
fn get_account_data(&self, pubkey: &Pubkey) -> Result<Option<Vec<u8>>> {
|
||||
Ok(self.bank.get_account(pubkey).map(|account| account.data))
|
||||
}
|
||||
|
||||
fn get_account(&self, pubkey: &Pubkey) -> Result<Option<Account>> {
|
||||
Ok(self.bank.get_account(pubkey))
|
||||
}
|
||||
|
||||
fn get_balance(&self, pubkey: &Pubkey) -> Result<u64> {
|
||||
Ok(self.bank.get_balance(pubkey))
|
||||
}
|
||||
|
||||
fn get_recent_blockhash(&self) -> Result<(Hash, FeeCalculator)> {
|
||||
Ok(self.bank.last_blockhash_with_fee_calculator())
|
||||
}
|
||||
|
||||
fn get_signature_status(
|
||||
&self,
|
||||
signature: &Signature,
|
||||
) -> Result<Option<transaction::Result<()>>> {
|
||||
Ok(self.bank.get_signature_status(signature))
|
||||
}
|
||||
|
||||
fn get_slot(&self) -> Result<u64> {
|
||||
Ok(self.bank.slot())
|
||||
}
|
||||
|
||||
fn get_transaction_count(&self) -> Result<u64> {
|
||||
Ok(self.bank.transaction_count())
|
||||
}
|
||||
|
||||
fn poll_for_signature_confirmation(
|
||||
&self,
|
||||
signature: &Signature,
|
||||
min_confirmed_blocks: usize,
|
||||
) -> Result<usize> {
|
||||
let mut now = Instant::now();
|
||||
let mut confirmed_blocks = 0;
|
||||
loop {
|
||||
let response = self.bank.get_signature_confirmation_status(signature);
|
||||
if let Some((confirmations, res)) = response {
|
||||
if res.is_ok() {
|
||||
if confirmed_blocks != confirmations {
|
||||
now = Instant::now();
|
||||
confirmed_blocks = confirmations;
|
||||
}
|
||||
if confirmations >= min_confirmed_blocks {
|
||||
break;
|
||||
}
|
||||
}
|
||||
};
|
||||
if now.elapsed().as_secs() > 15 {
|
||||
// TODO: Return a better error.
|
||||
return Err(TransportError::IoError(io::Error::new(
|
||||
io::ErrorKind::Other,
|
||||
"signature not found",
|
||||
)));
|
||||
}
|
||||
sleep(Duration::from_millis(250));
|
||||
}
|
||||
Ok(confirmed_blocks)
|
||||
}
|
||||
|
||||
fn poll_for_signature(&self, signature: &Signature) -> Result<()> {
|
||||
let now = Instant::now();
|
||||
loop {
|
||||
let response = self.bank.get_signature_status(signature);
|
||||
if let Some(res) = response {
|
||||
if res.is_ok() {
|
||||
break;
|
||||
}
|
||||
}
|
||||
if now.elapsed().as_secs() > 15 {
|
||||
// TODO: Return a better error.
|
||||
return Err(TransportError::IoError(io::Error::new(
|
||||
io::ErrorKind::Other,
|
||||
"signature not found",
|
||||
)));
|
||||
}
|
||||
sleep(Duration::from_millis(250));
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn get_new_blockhash(&self, blockhash: &Hash) -> Result<(Hash, FeeCalculator)> {
|
||||
let (last_blockhash, fee_calculator) = self.get_recent_blockhash()?;
|
||||
if last_blockhash != *blockhash {
|
||||
Ok((last_blockhash, fee_calculator))
|
||||
} else {
|
||||
Err(TransportError::IoError(io::Error::new(
|
||||
io::ErrorKind::Other,
|
||||
"Unable to get new blockhash",
|
||||
)))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl BankClient {
|
||||
fn run(bank: &Bank, transaction_receiver: Receiver<Transaction>) {
|
||||
while let Ok(tx) = transaction_receiver.recv() {
|
||||
let _ = bank.process_transaction(&tx);
|
||||
}
|
||||
}
|
||||
|
||||
pub fn new_shared(bank: &Arc<Bank>) -> Self {
|
||||
let (transaction_sender, transaction_receiver) = channel();
|
||||
let transaction_sender = Mutex::new(transaction_sender);
|
||||
let thread_bank = bank.clone();
|
||||
let bank = bank.clone();
|
||||
Builder::new()
|
||||
.name("solana-bank-client".to_string())
|
||||
.spawn(move || Self::run(&thread_bank, transaction_receiver))
|
||||
.unwrap();
|
||||
Self {
|
||||
bank,
|
||||
transaction_sender,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn new(bank: Bank) -> Self {
|
||||
Self::new_shared(&Arc::new(bank))
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
use solana_sdk::genesis_block::create_genesis_block;
|
||||
use solana_sdk::instruction::AccountMeta;
|
||||
|
||||
#[test]
|
||||
fn test_bank_client_new_with_keypairs() {
|
||||
let (genesis_block, john_doe_keypair) = create_genesis_block(10_000);
|
||||
let john_pubkey = john_doe_keypair.pubkey();
|
||||
let jane_doe_keypair = Keypair::new();
|
||||
let jane_pubkey = jane_doe_keypair.pubkey();
|
||||
let doe_keypairs = vec![&john_doe_keypair, &jane_doe_keypair];
|
||||
let bank = Bank::new(&genesis_block);
|
||||
let bank_client = BankClient::new(bank);
|
||||
|
||||
// Create 2-2 Multisig Transfer instruction.
|
||||
let bob_pubkey = Pubkey::new_rand();
|
||||
let mut transfer_instruction = system_instruction::transfer(&john_pubkey, &bob_pubkey, 42);
|
||||
transfer_instruction
|
||||
.accounts
|
||||
.push(AccountMeta::new(jane_pubkey, true));
|
||||
|
||||
let message = Message::new(vec![transfer_instruction]);
|
||||
bank_client.send_message(&doe_keypairs, message).unwrap();
|
||||
assert_eq!(bank_client.get_balance(&bob_pubkey).unwrap(), 42);
|
||||
}
|
||||
}
|
Reference in New Issue
Block a user