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core: Add multi-version store to Database

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This commit is contained in:
Pekka Enberg 2025-03-06 09:17:18 +02:00
parent 96175cccf7
commit 461be0dc87
2 changed files with 15 additions and 0 deletions
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12
core/lib.rs
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@ -83,7 +83,10 @@ enum TransactionState {
None,
}
pub(crate) type MvStore = crate::mvcc::MvStore<crate::mvcc::LocalClock>;
pub struct Database {
mv_store: Option<Rc<MvStore>>,
schema: Arc<RwLock<Schema>>,
// TODO: make header work without lock
header: Arc<Mutex<DatabaseHeader>>,
@ -128,11 +131,20 @@ impl Database {
let version = db_header.lock().unwrap().version_number;
version.to_string()
});
let mv_store = if enable_mvcc {
Some(Rc::new(MvStore::new(
crate::mvcc::LocalClock::new(),
crate::mvcc::persistent_storage::Storage::new_noop(),
)))
} else {
None
};
let shared_page_cache = Arc::new(RwLock::new(DumbLruPageCache::new(10)));
let page_size = db_header.lock().unwrap().page_size;
let header = db_header;
let schema = Arc::new(RwLock::new(Schema::new()));
let db = Database {
mv_store,
schema: schema.clone(),
header: header.clone(),
shared_page_cache: shared_page_cache.clone(),