68 lines
1.9 KiB
Rust
68 lines
1.9 KiB
Rust
use crossbeam_channel::{Receiver, RecvTimeoutError, Sender};
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use solana_ledger::blockstore::Blockstore;
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use solana_sdk::{clock::Slot, pubkey::Pubkey};
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use solana_transaction_status::Reward;
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use std::{
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sync::{
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atomic::{AtomicBool, Ordering},
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Arc,
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},
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thread::{self, Builder, JoinHandle},
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time::Duration,
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};
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pub type RewardsRecorderReceiver = Receiver<(Slot, Vec<(Pubkey, i64)>)>;
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pub type RewardsRecorderSender = Sender<(Slot, Vec<(Pubkey, i64)>)>;
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pub struct RewardsRecorderService {
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thread_hdl: JoinHandle<()>,
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}
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impl RewardsRecorderService {
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#[allow(clippy::new_ret_no_self)]
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pub fn new(
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rewards_receiver: RewardsRecorderReceiver,
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blockstore: Arc<Blockstore>,
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exit: &Arc<AtomicBool>,
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) -> Self {
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let exit = exit.clone();
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let thread_hdl = Builder::new()
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.name("solana-rewards-writer".to_string())
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.spawn(move || loop {
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if exit.load(Ordering::Relaxed) {
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break;
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}
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if let Err(RecvTimeoutError::Disconnected) =
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Self::write_rewards(&rewards_receiver, &blockstore)
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{
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break;
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}
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})
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.unwrap();
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Self { thread_hdl }
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}
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fn write_rewards(
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rewards_receiver: &RewardsRecorderReceiver,
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blockstore: &Arc<Blockstore>,
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) -> Result<(), RecvTimeoutError> {
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let (slot, rewards) = rewards_receiver.recv_timeout(Duration::from_secs(1))?;
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let rpc_rewards = rewards
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.into_iter()
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.map(|(pubkey, lamports)| Reward {
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pubkey: pubkey.to_string(),
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lamports,
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})
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.collect();
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blockstore
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.write_rewards(slot, rpc_rewards)
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.expect("Expect database write to succeed");
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Ok(())
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}
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pub fn join(self) -> thread::Result<()> {
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self.thread_hdl.join()
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}
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}
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