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