mirror of
https://github.com/XRPLF/rippled.git
synced 2025-12-06 17:27:55 +00:00
a143ef9b38
Summary: Change namespace from leveldb to rocksdb. This allows a single application to link in open-source leveldb code as well as rocksdb code into the same process. Test Plan: compile rocksdb Reviewers: emayanke Reviewed By: emayanke CC: leveldb Differential Revision: https://reviews.facebook.net/D13287
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file. See the AUTHORS file for names of contributors.
|
|
//
|
|
// Class for specifying user-defined functions which perform a
|
|
// transformation on a slice. It is not required that every slice
|
|
// belong to the domain and/or range of a function. Subclasses should
|
|
// define InDomain and InRange to determine which slices are in either
|
|
// of these sets respectively.
|
|
|
|
#ifndef STORAGE_ROCKSDB_INCLUDE_SLICE_TRANSFORM_H_
|
|
#define STORAGE_ROCKSDB_INCLUDE_SLICE_TRANSFORM_H_
|
|
|
|
#include <string>
|
|
|
|
namespace rocksdb {
|
|
|
|
class Slice;
|
|
|
|
class SliceTransform {
|
|
public:
|
|
virtual ~SliceTransform() {};
|
|
|
|
// Return the name of this transformation.
|
|
virtual const char* Name() const = 0;
|
|
|
|
// transform a src in domain to a dst in the range
|
|
virtual Slice Transform(const Slice& src) const = 0;
|
|
|
|
// determine whether this is a valid src upon the function applies
|
|
virtual bool InDomain(const Slice& src) const = 0;
|
|
|
|
// determine whether dst=Transform(src) for some src
|
|
virtual bool InRange(const Slice& dst) const = 0;
|
|
};
|
|
|
|
extern const SliceTransform* NewFixedPrefixTransform(size_t prefix_len);
|
|
|
|
extern const SliceTransform* NewNoopTransform();
|
|
|
|
}
|
|
|
|
#include "rocksdb/rocksdb_to_leveldb.h"
|
|
|
|
#endif // STORAGE_ROCKSDB_INCLUDE_SLICE_TRANSFORM_H_
|