cf44e4ca77
196962ff0 Add AcceleratedCRC32C to port_win.h 1bdf1c34c Merge upstream LevelDB v1.20 d31721eb0 Merge #17: Fixed file sharing errors fecd44902 Fixed file sharing error in Win32Env::GetFileSize(), Win32SequentialFile::_Init(), Win32RandomAccessFile::_Init() Fixed error checking in Win32SequentialFile::_Init() 5b7510f1b Merge #14: Merge upstream LevelDB 1.19 0d969fd57 Merge #16: [LevelDB] Do no crash if filesystem can't fsync c8c029b5b [LevelDB] Do no crash if filesystem can't fsync a53934a3a Increase leveldb version to 1.20. f3f139737 Separate Env tests from PosixEnv tests. eb4f0972f leveldb: Fix compilation warnings in port_posix_sse.cc on x86 (32-bit). d0883b600 Fixed path to doc file: index.md. 7fa20948d Convert documentation to markdown. ea175e28f Implement support for Intel crc32 instruction (SSE 4.2) 95cd743e5 Including <limits> for std::numeric_limits. 646c3588d Limit the number of read-only files the POSIX Env will have open. d40bc3fa5 Merge #13: Typo ebbd772d3 Typo a2fb086d0 Add option for max file size. The currend hard-coded value of 2M is inefficient in colossus. git-subtree-dir: src/leveldb git-subtree-split: 196962ff01c39b4705d8117df5c3f8c205349950
35 lines
896 B
C++
35 lines
896 B
C++
// 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.md 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), length (2 bytes), type (1 byte).
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static const int kHeaderSize = 4 + 2 + 1;
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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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