fork of https://github.com/rust-rocksdb/rust-rocksdb for nextgraph
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
35 lines
1.0 KiB
35 lines
1.0 KiB
1 year ago
|
// Copyright (c) Meta Platforms, Inc. and affiliates.
|
||
|
|
//
|
||
|
|
// This source code is licensed under both the GPLv2 (found in the
|
||
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
||
|
|
// (found in the LICENSE.Apache file in the root directory).
|
||
|
|
|
||
|
|
//
|
||
|
|
// Generic definitions for a Range-based Lock Manager
|
||
|
|
//
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include "utilities/transactions/lock/lock_manager.h"
|
||
|
|
|
||
|
|
namespace ROCKSDB_NAMESPACE {
|
||
|
|
|
||
|
|
/*
|
||
|
|
A base class for all Range-based lock managers
|
||
|
|
|
||
|
|
See also class RangeLockManagerHandle in
|
||
|
|
include/rocksdb/utilities/transaction_db.h
|
||
|
|
*/
|
||
|
|
class RangeLockManagerBase : public LockManager {
|
||
|
|
public:
|
||
|
|
// Geting a point lock is reduced to getting a range lock on a single-point
|
||
|
|
// range
|
||
|
|
using LockManager::TryLock;
|
||
|
|
Status TryLock(PessimisticTransaction* txn, ColumnFamilyId column_family_id,
|
||
|
|
const std::string& key, Env* env, bool exclusive) override {
|
||
|
|
Endpoint endp(key.data(), key.size(), false);
|
||
|
|
return TryLock(txn, column_family_id, endp, endp, env, exclusive);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace ROCKSDB_NAMESPACE
|