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Import LevelDB 1.5, it will be used for the transaction database.
author Mike Hearn <hearn@google.com>
date Mon, 25 Jun 2012 11:17:22 +0200
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3633:94f6e3e0c600 3634:98b459278ba3
1 // Copyright (c) 2011 The LevelDB Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. See the AUTHORS file for names of contributors.
4 //
5 // Log format information shared by reader and writer.
6 // See ../doc/log_format.txt for more detail.
7
8 #ifndef STORAGE_LEVELDB_DB_LOG_FORMAT_H_
9 #define STORAGE_LEVELDB_DB_LOG_FORMAT_H_
10
11 namespace leveldb {
12 namespace log {
13
14 enum RecordType {
15 // Zero is reserved for preallocated files
16 kZeroType = 0,
17
18 kFullType = 1,
19
20 // For fragments
21 kFirstType = 2,
22 kMiddleType = 3,
23 kLastType = 4
24 };
25 static const int kMaxRecordType = kLastType;
26
27 static const int kBlockSize = 32768;
28
29 // Header is checksum (4 bytes), type (1 byte), length (2 bytes).
30 static const int kHeaderSize = 4 + 1 + 2;
31
32 } // namespace log
33 } // namespace leveldb
34
35 #endif // STORAGE_LEVELDB_DB_LOG_FORMAT_H_