CorruptedIndexPersister Class Reference

Persister used for corrupted indexes. More...

#include <dict0mem.h>

Inheritance diagram for CorruptedIndexPersister:

Public Member Functions
ulint	write (const PersistentTableMetadata &metadata, byte *buffer, ulint size) const override
	Write the corrupted indexes of a table, we can pre-calculate the size by calling get_write_size() More...
ulint	get_write_size (const PersistentTableMetadata &metadata) const override
	Pre-calculate the size of metadata to be written. More...
ulint	read (PersistentTableMetadata &metadata, const byte *buffer, ulint 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...
void	write_log (table_id_t id, const PersistentTableMetadata &metadata, mtr_t *mtr) const
	Write MLOG_TABLE_DYNAMIC_META for persistent dynamic metadata of table. 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()

ulint 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()

ulint CorruptedIndexPersister::read ( PersistentTableMetadata &  metadata, const byte *  buffer, ulint  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()

ulint CorruptedIndexPersister::write ( const PersistentTableMetadata &  metadata, byte *  buffer, ulint  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