mirror of https://github.com/facebook/rocksdb.git
80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under the BSD-style license found in the
|
|
// LICENSE file in the root directory of this source tree. An additional grant
|
|
// of patent rights can be found in the PATENTS file in the same directory.
|
|
//
|
|
// Copyright (c) 2012 Facebook. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#pragma once
|
|
#include "db/db_impl.h"
|
|
|
|
#include <deque>
|
|
#include <set>
|
|
#include "db/dbformat.h"
|
|
#include "db/log_writer.h"
|
|
#include "db/snapshot.h"
|
|
#include "rocksdb/db.h"
|
|
#include "rocksdb/env.h"
|
|
#include "port/port.h"
|
|
#include "util/stats_logger.h"
|
|
|
|
namespace rocksdb {
|
|
|
|
class DBImplReadOnly : public DBImpl {
|
|
public:
|
|
DBImplReadOnly(const Options& options, const std::string& dbname);
|
|
virtual ~DBImplReadOnly();
|
|
|
|
// Implementations of the DB interface
|
|
virtual Status Get(const ReadOptions& options,
|
|
const Slice& key,
|
|
std::string* value);
|
|
|
|
// TODO: Implement ReadOnly MultiGet?
|
|
|
|
virtual Iterator* NewIterator(const ReadOptions&);
|
|
|
|
virtual Status Put(const WriteOptions&, const Slice& key, const Slice& value) {
|
|
return Status::NotSupported("Not supported operation in read only mode.");
|
|
}
|
|
virtual Status Merge(const WriteOptions&, const Slice& key,
|
|
const Slice& value) {
|
|
return Status::NotSupported("Not supported operation in read only mode.");
|
|
}
|
|
virtual Status Delete(const WriteOptions&, const Slice& key) {
|
|
return Status::NotSupported("Not supported operation in read only mode.");
|
|
}
|
|
virtual Status Write(const WriteOptions& options, WriteBatch* updates) {
|
|
return Status::NotSupported("Not supported operation in read only mode.");
|
|
}
|
|
virtual Status CompactRange(const Slice* begin, const Slice* end,
|
|
bool reduce_level = false, int target_level = -1) {
|
|
return Status::NotSupported("Not supported operation in read only mode.");
|
|
}
|
|
virtual Status DisableFileDeletions() {
|
|
return Status::NotSupported("Not supported operation in read only mode.");
|
|
}
|
|
virtual Status EnableFileDeletions(bool force) {
|
|
return Status::NotSupported("Not supported operation in read only mode.");
|
|
}
|
|
virtual Status GetLiveFiles(std::vector<std::string>&,
|
|
uint64_t* manifest_file_size,
|
|
bool flush_memtable = true) {
|
|
return Status::NotSupported("Not supported operation in read only mode.");
|
|
}
|
|
virtual Status Flush(const FlushOptions& options) {
|
|
return Status::NotSupported("Not supported operation in read only mode.");
|
|
}
|
|
|
|
private:
|
|
friend class DB;
|
|
|
|
// No copying allowed
|
|
DBImplReadOnly(const DBImplReadOnly&);
|
|
void operator=(const DBImplReadOnly&);
|
|
};
|
|
|
|
}
|