2024-01-03 10:24:52 +00:00
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#[macro_use]
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extern crate tracing;
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use anyhow::bail;
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2024-01-26 02:29:09 +00:00
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use shared_types::{Chunk, ChunkArray, ChunkArrayWithProof, DataRoot, FlowProof, Transaction};
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2024-01-03 10:24:52 +00:00
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use std::sync::Arc;
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use storage::{error, error::Result, log_store::Store as LogStore, H256};
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use task_executor::TaskExecutor;
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use tokio::sync::{oneshot, RwLock};
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/// The name of the worker tokio tasks.
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const WORKER_TASK_NAME: &str = "async_storage_worker";
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macro_rules! delegate {
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(fn $name:tt($($v:ident: $t:ty),*)) => {
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delegate!($name($($v: $t),*) -> ());
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};
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(fn $name:tt($($v:ident: $t:ty),*) -> $ret:ty) => {
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pub async fn $name(&self, $($v: $t),*) -> $ret {
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self.spawn(move |store| store.$name($($v),*)).await
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}
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};
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}
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#[derive(Clone)]
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pub struct Store {
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/// Log and transaction storage.
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store: Arc<RwLock<dyn LogStore>>,
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/// Tokio executor for spawning worker tasks.
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executor: TaskExecutor,
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}
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impl Store {
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pub fn new(store: Arc<RwLock<dyn LogStore>>, executor: TaskExecutor) -> Self {
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Store { store, executor }
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}
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delegate!(fn check_tx_completed(tx_seq: u64) -> Result<bool>);
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delegate!(fn get_chunk_by_tx_and_index(tx_seq: u64, index: usize) -> Result<Option<Chunk>>);
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delegate!(fn get_chunks_by_tx_and_index_range(tx_seq: u64, index_start: usize, index_end: usize) -> Result<Option<ChunkArray>>);
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delegate!(fn get_chunks_with_proof_by_tx_and_index_range(tx_seq: u64, index_start: usize, index_end: usize) -> Result<Option<ChunkArrayWithProof>>);
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delegate!(fn get_tx_by_seq_number(seq: u64) -> Result<Option<Transaction>>);
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delegate!(fn put_chunks(tx_seq: u64, chunks: ChunkArray) -> Result<()>);
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2024-01-26 02:29:09 +00:00
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delegate!(fn put_chunks_with_tx_hash(tx_seq: u64, tx_hash: H256, chunks: ChunkArray, maybe_file_proof: Option<FlowProof>) -> Result<bool>);
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2024-01-03 10:24:52 +00:00
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delegate!(fn get_chunk_by_flow_index(index: u64, length: u64) -> Result<Option<ChunkArray>>);
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delegate!(fn finalize_tx(tx_seq: u64) -> Result<()>);
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delegate!(fn finalize_tx_with_hash(tx_seq: u64, tx_hash: H256) -> Result<bool>);
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pub async fn get_tx_seq_by_data_root(&self, data_root: &DataRoot) -> Result<Option<u64>> {
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let root = *data_root;
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self.spawn(move |store| store.get_tx_seq_by_data_root(&root))
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.await
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}
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pub async fn get_tx_by_data_root(&self, data_root: &DataRoot) -> Result<Option<Transaction>> {
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let root = *data_root;
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self.spawn(move |store| store.get_tx_by_data_root(&root))
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.await
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}
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async fn spawn<T, F>(&self, f: F) -> Result<T>
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where
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F: FnOnce(&mut dyn LogStore) -> Result<T> + Send + 'static,
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T: Send + 'static,
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{
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let store = self.store.clone();
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let (tx, rx) = oneshot::channel();
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self.executor.spawn(
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async move {
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// FIXME(zz): Not all functions need `write`. Refactor store usage.
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let res = f(&mut *store.write().await);
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if tx.send(res).is_err() {
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error!("Unable to complete async storage operation: the receiver dropped");
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}
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},
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WORKER_TASK_NAME,
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);
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rx.await
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.unwrap_or_else(|_| bail!(error::Error::Custom("Receiver error".to_string())))
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}
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// FIXME(zz): Refactor the lock and async call here.
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pub fn get_store(&self) -> &RwLock<dyn LogStore> {
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self.store.as_ref()
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}
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}
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