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sync_storage.rs
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sync_storage.rs
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// Copyright 2016 TiKV Project Authors. Licensed under Apache-2.0.
use futures::Future;
use kvproto::kvrpcpb::{Context, LockInfo};
use tikv::storage::config::Config;
use tikv::storage::kv::RocksEngine;
use tikv::storage::{
AutoGCConfig, Engine, GCSafePointProvider, Key, KvPair, Mutation, Options, RegionInfoProvider,
Result, Storage, Value,
};
use tikv::storage::{TestEngineBuilder, TestStorageBuilder};
use tikv_util::collections::HashMap;
/// A builder to build a `SyncTestStorage`.
///
/// Only used for test purpose.
pub struct SyncTestStorageBuilder<E: Engine> {
engine: E,
config: Option<Config>,
}
impl SyncTestStorageBuilder<RocksEngine> {
pub fn new() -> Self {
Self {
engine: TestEngineBuilder::new().build().unwrap(),
config: None,
}
}
}
impl<E: Engine> SyncTestStorageBuilder<E> {
pub fn from_engine(engine: E) -> Self {
Self {
engine,
config: None,
}
}
pub fn config(mut self, config: Config) -> Self {
self.config = Some(config);
self
}
pub fn build(mut self) -> Result<SyncTestStorage<E>> {
let mut builder = TestStorageBuilder::from_engine(self.engine);
if let Some(config) = self.config.take() {
builder = builder.config(config);
}
Ok(SyncTestStorage {
store: builder.build()?,
})
}
}
/// A `Storage` like structure with sync API.
///
/// Only used for test purpose.
#[derive(Clone)]
pub struct SyncTestStorage<E: Engine> {
store: Storage<E>,
}
impl<E: Engine> SyncTestStorage<E> {
pub fn start_auto_gc<S: GCSafePointProvider, R: RegionInfoProvider>(
&mut self,
cfg: AutoGCConfig<S, R>,
) {
self.store.start_auto_gc(cfg).unwrap();
}
pub fn get_storage(&self) -> Storage<E> {
self.store.clone()
}
pub fn get_engine(&self) -> E {
self.store.get_engine()
}
pub fn get(&self, ctx: Context, key: &Key, start_ts: u64) -> Result<Option<Value>> {
self.store.async_get(ctx, key.to_owned(), start_ts).wait()
}
#[allow(dead_code)]
pub fn batch_get(
&self,
ctx: Context,
keys: &[Key],
start_ts: u64,
) -> Result<Vec<Result<KvPair>>> {
self.store
.async_batch_get(ctx, keys.to_owned(), start_ts)
.wait()
}
pub fn scan(
&self,
ctx: Context,
start_key: Key,
end_key: Option<Key>,
limit: usize,
key_only: bool,
start_ts: u64,
) -> Result<Vec<Result<KvPair>>> {
self.store
.async_scan(
ctx,
start_key,
end_key,
limit,
start_ts,
Options::new(0, false, key_only),
)
.wait()
}
pub fn reverse_scan(
&self,
ctx: Context,
start_key: Key,
end_key: Option<Key>,
limit: usize,
key_only: bool,
start_ts: u64,
) -> Result<Vec<Result<KvPair>>> {
self.store
.async_scan(
ctx,
start_key,
end_key,
limit,
start_ts,
Options::new(0, false, key_only).reverse_scan(),
)
.wait()
}
pub fn prewrite(
&self,
ctx: Context,
mutations: Vec<Mutation>,
primary: Vec<u8>,
start_ts: u64,
) -> Result<Vec<Result<()>>> {
wait_op!(|cb| self.store.async_prewrite(
ctx,
mutations,
primary,
start_ts,
Options::default(),
cb
))
.unwrap()
}
pub fn commit(
&self,
ctx: Context,
keys: Vec<Key>,
start_ts: u64,
commit_ts: u64,
) -> Result<()> {
wait_op!(|cb| self.store.async_commit(ctx, keys, start_ts, commit_ts, cb)).unwrap()
}
pub fn cleanup(&self, ctx: Context, key: Key, start_ts: u64) -> Result<()> {
wait_op!(|cb| self.store.async_cleanup(ctx, key, start_ts, cb)).unwrap()
}
pub fn rollback(&self, ctx: Context, keys: Vec<Key>, start_ts: u64) -> Result<()> {
wait_op!(|cb| self.store.async_rollback(ctx, keys, start_ts, cb)).unwrap()
}
pub fn scan_locks(
&self,
ctx: Context,
max_ts: u64,
start_key: Vec<u8>,
limit: usize,
) -> Result<Vec<LockInfo>> {
wait_op!(|cb| self
.store
.async_scan_locks(ctx, max_ts, start_key, limit, cb))
.unwrap()
}
pub fn resolve_lock(&self, ctx: Context, start_ts: u64, commit_ts: Option<u64>) -> Result<()> {
let mut txn_status = HashMap::default();
txn_status.insert(start_ts, commit_ts.unwrap_or(0));
wait_op!(|cb| self.store.async_resolve_lock(ctx, txn_status, cb)).unwrap()
}
pub fn resolve_lock_batch(&self, ctx: Context, txns: Vec<(u64, u64)>) -> Result<()> {
let txn_status: HashMap<u64, u64> = txns.into_iter().collect();
wait_op!(|cb| self.store.async_resolve_lock(ctx, txn_status, cb)).unwrap()
}
pub fn gc(&self, ctx: Context, safe_point: u64) -> Result<()> {
wait_op!(|cb| self.store.async_gc(ctx, safe_point, cb)).unwrap()
}
pub fn raw_get(&self, ctx: Context, cf: String, key: Vec<u8>) -> Result<Option<Vec<u8>>> {
self.store.async_raw_get(ctx, cf, key).wait()
}
pub fn raw_put(&self, ctx: Context, cf: String, key: Vec<u8>, value: Vec<u8>) -> Result<()> {
wait_op!(|cb| self.store.async_raw_put(ctx, cf, key, value, cb)).unwrap()
}
pub fn raw_delete(&self, ctx: Context, cf: String, key: Vec<u8>) -> Result<()> {
wait_op!(|cb| self.store.async_raw_delete(ctx, cf, key, cb)).unwrap()
}
pub fn raw_scan(
&self,
ctx: Context,
cf: String,
start_key: Vec<u8>,
end_key: Option<Vec<u8>>,
limit: usize,
) -> Result<Vec<Result<KvPair>>> {
self.store
.async_raw_scan(ctx, cf, start_key, end_key, limit, false, false)
.wait()
}
pub fn reverse_raw_scan(
&self,
ctx: Context,
cf: String,
start_key: Vec<u8>,
end_key: Option<Vec<u8>>,
limit: usize,
) -> Result<Vec<Result<KvPair>>> {
self.store
.async_raw_scan(ctx, cf, start_key, end_key, limit, false, true)
.wait()
}
}