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ChecksumIndexOutput.h
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1
2// Copyright (c) 2009-2014 Alan Wright. All rights reserved.
3// Distributable under the terms of either the Apache License (Version 2.0)
4// or the GNU Lesser General Public License.
6
7#ifndef CHECKSUMINDEXOUTPUT_H
8#define CHECKSUMINDEXOUTPUT_H
9
10#include <boost/crc.hpp>
11#include "IndexOutput.h"
12
13 namespace Lucene {
14
17 class LPPAPI ChecksumIndexOutput : public IndexOutput {
18 public:
19 ChecksumIndexOutput(const IndexOutputPtr& main);
20 virtual ~ChecksumIndexOutput();
21
22 LUCENE_CLASS(ChecksumIndexOutput);
23
24 protected:
25 IndexOutputPtr main;
26 boost::crc_32_type checksum;
27
28 public:
31 virtual void writeByte(uint8_t b);
32
37 virtual void writeBytes(const uint8_t* b, int32_t offset, int32_t length);
38
40 int64_t getChecksum();
41
43 virtual void flush();
44
46 virtual void close();
47
50 virtual int64_t getFilePointer();
51
54 virtual void seek(int64_t pos);
55
59 void prepareCommit();
60
62 void finishCommit();
63
65 virtual int64_t length();
66};
67
68}
69
70#endif
IndexOutput.h
LUCENE_CLASS
#define LUCENE_CLASS(Name)
Definition LuceneObject.h:24
Lucene::ChecksumIndexOutput::getChecksum
int64_t getChecksum()
Return calculated checksum.
Lucene::ChecksumIndexOutput::finishCommit
void finishCommit()
See prepareCommit.
Lucene::ChecksumIndexOutput::prepareCommit
void prepareCommit()
Starts but does not complete the commit of this file (= writing of the final checksum at the end)....
Lucene::ChecksumIndexOutput::checksum
boost::crc_32_type checksum
Definition ChecksumIndexOutput.h:26
Lucene::ChecksumIndexOutput::close
virtual void close()
Closes the stream to further operations.
Lucene::ChecksumIndexOutput::flush
virtual void flush()
Forces any buffered output to be written.
Lucene::ChecksumIndexOutput::main
IndexOutputPtr main
Definition ChecksumIndexOutput.h:25
Lucene::ChecksumIndexOutput::seek
virtual void seek(int64_t pos)
Sets current position in this file, where the next write will occur.
Lucene::ChecksumIndexOutput::~ChecksumIndexOutput
virtual ~ChecksumIndexOutput()
Lucene::ChecksumIndexOutput::writeByte
virtual void writeByte(uint8_t b)
Writes a single byte.
Lucene::ChecksumIndexOutput::length
virtual int64_t length()
The number of bytes in the file.
Lucene::ChecksumIndexOutput::writeBytes
virtual void writeBytes(const uint8_t *b, int32_t offset, int32_t length)
Writes an array of bytes.
Lucene::ChecksumIndexOutput::getFilePointer
virtual int64_t getFilePointer()
Returns the current position in this file, where the next write will occur.
Lucene::ChecksumIndexOutput::ChecksumIndexOutput
ChecksumIndexOutput(const IndexOutputPtr &main)
Lucene::IndexOutput
Abstract base class for output to a file in a Directory. A random-access output stream....
Definition IndexOutput.h:18
Lucene
Definition AbstractAllTermDocs.h:12
Lucene::IndexOutputPtr
boost::shared_ptr< IndexOutput > IndexOutputPtr
Definition LuceneTypes.h:494

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