CorruptedIndexPersister Class Reference

Persister used for corrupted indexes. More...

#include <dict0mem.h>

Inheritance diagram for CorruptedIndexPersister:

Public Member Functions
size_t	write (const PersistentTableMetadata &metadata, byte *buffer, size_t size) const override
	Write the corrupted indexes of a table, we can pre-calculate the size by calling get_write_size() More...
size_t	get_write_size (const PersistentTableMetadata &metadata) const override
	Pre-calculate the size of metadata to be written. More...
size_t	read (PersistentTableMetadata &metadata, const byte *buffer, size_t size, bool *corrupt) const override
	Read the corrupted indexes from buffer, and store them to metadata object. More...
void	aggregate (PersistentTableMetadata &metadata, const PersistentTableMetadata &new_entry) const override
	Aggregate metadata entries into a single metadata instance, considering version numbers. More...
Public Member Functions inherited from Persister
virtual	~Persister ()=default
	Virtual destructor. More...

Static Private Attributes
static const size_t	INDEX_ID_LENGTH = 12
	The length of index_id_t we will write. More...

Detailed Description

Persister used for corrupted indexes.

Member Function Documentation

aggregate()

void CorruptedIndexPersister::aggregate ( PersistentTableMetadata &  metadata, const PersistentTableMetadata &  new_entry  ) const

overridevirtual

Aggregate metadata entries into a single metadata instance, considering version numbers.

Parameters

[in,out]	metadata	metadata object to be modified
[in]	new_entry	metadata entry from logs

Implements Persister.

get_write_size()

size_t CorruptedIndexPersister::get_write_size ( const PersistentTableMetadata &  metadata ) const

overridevirtual

Pre-calculate the size of metadata to be written.

Parameters

[in]

metadata

metadata to be written

Returns

the size of metadata

Implements Persister.

read()

size_t CorruptedIndexPersister::read ( PersistentTableMetadata &  metadata, const byte *  buffer, size_t  size, bool *  corrupt  ) const

overridevirtual

Read the corrupted indexes from buffer, and store them to metadata object.

Parameters

[out]	metadata	metadata where we store the read data
[in]	buffer	buffer to read
[in]	size	size of buffer
[out]	corrupt	true if we found something wrong in the buffer except incomplete buffer, otherwise false

Returns

the bytes we read from the buffer if the buffer data is complete and we get everything, 0 if the buffer is incompleted

Implements Persister.

write()

size_t CorruptedIndexPersister::write ( const PersistentTableMetadata &  metadata, byte *  buffer, size_t  size  ) const

overridevirtual

Write the corrupted indexes of a table, we can pre-calculate the size by calling get_write_size()

Parameters

[in]	metadata	persistent data
[out]	buffer	write buffer
[in]	size	size of write buffer, should be at least get_write_size()

Returns

the length of bytes written

Implements Persister.

Member Data Documentation

INDEX_ID_LENGTH

const size_t CorruptedIndexPersister::INDEX_ID_LENGTH = 12

staticprivate

The length of index_id_t we will write.

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The documentation for this class was generated from the following files:

• storage/innobase/include/dict0mem.h
• storage/innobase/dict/dict0dict.cc