fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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76 lines
2.3 KiB
76 lines
2.3 KiB
// Copyright (c) 2012 Facebook. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef STORAGE_LEVELDB_DB_DB_IMPL_READONLY_H_
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#define STORAGE_LEVELDB_DB_DB_IMPL_READONLY_H_
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#include "db/db_impl.h"
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#include <deque>
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#include <set>
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#include "db/dbformat.h"
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#include "db/log_writer.h"
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#include "db/snapshot.h"
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#include "leveldb/db.h"
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#include "leveldb/env.h"
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#include "port/port.h"
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#include "util/stats_logger.h"
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#ifdef USE_SCRIBE
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#include "scribe/scribe_logger.h"
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#endif
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namespace leveldb {
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class DBImplReadOnly : public DBImpl {
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public:
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DBImplReadOnly(const Options& options, const std::string& dbname);
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virtual ~DBImplReadOnly();
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// Implementations of the DB interface
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virtual Status Get(const ReadOptions& options,
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const Slice& key,
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std::string* value);
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virtual Iterator* NewIterator(const ReadOptions&);
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virtual Status Put(const WriteOptions&, const Slice& key, const Slice& value) {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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virtual Status Merge(const WriteOptions&, const Slice& key,
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const Slice& value) {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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virtual Status Delete(const WriteOptions&, const Slice& key) {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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virtual Status Write(const WriteOptions& options, WriteBatch* updates) {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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virtual void CompactRange(const Slice* begin, const Slice* end) {
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}
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virtual Status DisableFileDeletions() {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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virtual Status EnableFileDeletions() {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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virtual Status GetLiveFiles(std::vector<std::string>&,
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uint64_t* manifest_file_size) {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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virtual Status Flush(const FlushOptions& options) {
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return Status::NotSupported("Not supported operation in read only mode.");
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}
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private:
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friend class DB;
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// No copying allowed
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DBImplReadOnly(const DBImplReadOnly&);
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void operator=(const DBImplReadOnly&);
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};
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}
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#endif
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