mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-26 16:30:56 +00:00
4720ba4391
Summary: We haven't been actively mantaining RocksDB LITE recently and the size must have been gone up significantly. We are removing the support. Most of changes were done through following comments: unifdef -m -UROCKSDB_LITE `git grep -l ROCKSDB_LITE | egrep '[.](cc|h)'` by Peter Dillinger. Others changes were manually applied to build scripts, CircleCI manifests, ROCKSDB_LITE is used in an expression and file db_stress_test_base.cc. Pull Request resolved: https://github.com/facebook/rocksdb/pull/11147 Test Plan: See CI Reviewed By: pdillinger Differential Revision: D42796341 fbshipit-source-id: 4920e15fc2060c2cd2221330a6d0e5e65d4b7fe2
138 lines
5.6 KiB
C++
138 lines
5.6 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
|
|
// 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).
|
|
|
|
#pragma once
|
|
|
|
|
|
#include <utility>
|
|
|
|
#include "rocksdb/file_system.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
|
|
// An abstract FileSystem wrapper that creates a view of an existing
|
|
// FileSystem by remapping names in some way.
|
|
//
|
|
// This class has not been fully analyzed for providing strong security
|
|
// guarantees.
|
|
class RemapFileSystem : public FileSystemWrapper {
|
|
public:
|
|
explicit RemapFileSystem(const std::shared_ptr<FileSystem>& base);
|
|
|
|
protected:
|
|
// Returns status and mapped-to path in the wrapped filesystem.
|
|
// If it returns non-OK status, the returned path should not be used.
|
|
virtual std::pair<IOStatus, std::string> EncodePath(
|
|
const std::string& path) = 0;
|
|
|
|
// Similar to EncodePath() except used in cases in which it is OK for
|
|
// no file or directory on 'path' to already exist, such as if the
|
|
// operation would create one. However, the parent of 'path' is expected
|
|
// to exist for the operation to succeed.
|
|
// Default implementation: call EncodePath
|
|
virtual std::pair<IOStatus, std::string> EncodePathWithNewBasename(
|
|
const std::string& path);
|
|
|
|
public:
|
|
// Left abstract:
|
|
// const char* Name() const override { ... }
|
|
static const char* kClassName() { return "RemapFileSystem"; }
|
|
bool IsInstanceOf(const std::string& id) const override {
|
|
if (id == kClassName()) {
|
|
return true;
|
|
} else {
|
|
return FileSystemWrapper::IsInstanceOf(id);
|
|
}
|
|
}
|
|
|
|
Status RegisterDbPaths(const std::vector<std::string>& paths) override;
|
|
|
|
Status UnregisterDbPaths(const std::vector<std::string>& paths) override;
|
|
|
|
IOStatus NewSequentialFile(const std::string& fname,
|
|
const FileOptions& options,
|
|
std::unique_ptr<FSSequentialFile>* result,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus NewRandomAccessFile(const std::string& fname,
|
|
const FileOptions& options,
|
|
std::unique_ptr<FSRandomAccessFile>* result,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus NewWritableFile(const std::string& fname, const FileOptions& options,
|
|
std::unique_ptr<FSWritableFile>* result,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus ReuseWritableFile(const std::string& fname,
|
|
const std::string& old_fname,
|
|
const FileOptions& options,
|
|
std::unique_ptr<FSWritableFile>* result,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus NewRandomRWFile(const std::string& fname, const FileOptions& options,
|
|
std::unique_ptr<FSRandomRWFile>* result,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus NewDirectory(const std::string& dir, const IOOptions& options,
|
|
std::unique_ptr<FSDirectory>* result,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus FileExists(const std::string& fname, const IOOptions& options,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus GetChildren(const std::string& dir, const IOOptions& options,
|
|
std::vector<std::string>* result,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus GetChildrenFileAttributes(const std::string& dir,
|
|
const IOOptions& options,
|
|
std::vector<FileAttributes>* result,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus DeleteFile(const std::string& fname, const IOOptions& options,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus CreateDir(const std::string& dirname, const IOOptions& options,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus CreateDirIfMissing(const std::string& dirname,
|
|
const IOOptions& options,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus DeleteDir(const std::string& dirname, const IOOptions& options,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus GetFileSize(const std::string& fname, const IOOptions& options,
|
|
uint64_t* file_size, IODebugContext* dbg) override;
|
|
|
|
IOStatus GetFileModificationTime(const std::string& fname,
|
|
const IOOptions& options,
|
|
uint64_t* file_mtime,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus IsDirectory(const std::string& path, const IOOptions& options,
|
|
bool* is_dir, IODebugContext* dbg) override;
|
|
|
|
IOStatus RenameFile(const std::string& src, const std::string& dest,
|
|
const IOOptions& options, IODebugContext* dbg) override;
|
|
|
|
IOStatus LinkFile(const std::string& src, const std::string& dest,
|
|
const IOOptions& options, IODebugContext* dbg) override;
|
|
|
|
IOStatus LockFile(const std::string& fname, const IOOptions& options,
|
|
FileLock** lock, IODebugContext* dbg) override;
|
|
|
|
IOStatus NewLogger(const std::string& fname, const IOOptions& options,
|
|
std::shared_ptr<Logger>* result,
|
|
IODebugContext* dbg) override;
|
|
|
|
IOStatus GetAbsolutePath(const std::string& db_path, const IOOptions& options,
|
|
std::string* output_path,
|
|
IODebugContext* dbg) override;
|
|
};
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|