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72918efffe
Summary: In addition to implementing OpenWithColumnFamilies, this diff also includes some minor changes: * Changed all column family names from Slice() to std::string. The performance of column family name handling is not critical, and it's more convenient and cleaner to have names as std::strings * Implemented ColumnFamilyOptions(const Options&) and DBOptions(const Options&) * Added ColumnFamilyOptions to VersionSet::ColumnFamilyData. ColumnFamilyOptions are specified on OpenWithColumnFamilies() and CreateColumnFamily() I will keep the diff in the Phabricator for a day or two and will push to the branch then. Feel free to comment even after the diff has been pushed. Test Plan: Added a simple unit test Reviewers: dhruba, haobo CC: leveldb Differential Revision: https://reviews.facebook.net/D15033
32 lines
1.1 KiB
C++
32 lines
1.1 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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// Copyright (c) 2011 The LevelDB Authors. 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. See the AUTHORS file for names of contributors.
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#pragma once
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#include "rocksdb/slice.h"
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namespace rocksdb {
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// Column family's name is translated to ColumnFamilyHandle at DB open or column
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// family open time. Clients use ColumnFamilyHandle to comunicate with the DB
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//
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// Column family names that start with "." (a dot) are system specific and
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// should not be used by the clients
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struct ColumnFamilyHandle {
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uint32_t id;
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// default
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ColumnFamilyHandle() : id() {}
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/* implicit */
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ColumnFamilyHandle(uint32_t _id) : id(_id) {}
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};
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const ColumnFamilyHandle default_column_family = ColumnFamilyHandle();
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extern const std::string default_column_family_name;
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}
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