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- // Copyright (c) 2011 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.
- //
- // Log format information shared by reader and writer.
- // See ../doc/log_format.md for more detail.
-
- #ifndef STORAGE_LEVELDB_DB_LOG_FORMAT_H_
- #define STORAGE_LEVELDB_DB_LOG_FORMAT_H_
-
- namespace leveldb {
- namespace log {
-
- enum RecordType {
- // Zero is reserved for preallocated files
- kZeroType = 0,
-
- kFullType = 1,
-
- // For fragments
- kFirstType = 2,
- kMiddleType = 3,
- kLastType = 4
- };
- static const int kMaxRecordType = kLastType;
-
- static const int kBlockSize = 32768;
-
- // Header is checksum (4 bytes), length (2 bytes), type (1 byte).
- static const int kHeaderSize = 4 + 2 + 1;
-
- } // namespace log
- } // namespace leveldb
-
- #endif // STORAGE_LEVELDB_DB_LOG_FORMAT_H_
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