Recovery_metadata_message_compressed_parts::Iterator Struct Reference

#include <recovery_metadata_message_compressed_parts.h>

Public Types
using	iterator_category = std::forward_iterator_tag
using	difference_type = std::ptrdiff_t

Public Member Functions
	Iterator (Recovery_metadata_message *recovery_metadata_message, uint packet_count)
	Iterator constructor. More...
std::tuple< const unsigned char *, unsigned long long, unsigned long long >	operator* ()
	The Recovery Metadata payload may contain multiple packets of compressed data. More...
Iterator &	operator++ ()
	The Recovery Metadata payload may contain multiple packets of compressed data. More...
Iterator	operator++ (int)
	The Recovery Metadata payload may contain multiple packets of compressed data. More...
bool	operator== (Iterator &b)
	The Recovery Metadata payload may contain multiple packets of compressed data. More...
bool	operator!= (Iterator &b)
	The Recovery Metadata payload may contain multiple packets of compressed data. More...

Private Attributes
const unsigned char *	m_payload_pos
unsigned long long	m_payload_length {0}
unsigned long long	m_payload_uncompressed_length {0}
uint	m_count {0}
Recovery_metadata_message *	m_recovery_metadata_message {nullptr}

Member Typedef Documentation

difference_type

using Recovery_metadata_message_compressed_parts::Iterator::difference_type = std::ptrdiff_t

iterator_category

using Recovery_metadata_message_compressed_parts::Iterator::iterator_category = std::forward_iterator_tag

Constructor & Destructor Documentation

Iterator()

Recovery_metadata_message_compressed_parts::Iterator::Iterator	(	Recovery_metadata_message *	recovery_metadata_message,
		uint	packet_count
	)

Iterator constructor.

Parameters

[in]	recovery_metadata_message	pointer to Recovery_metadata_message.
[in]	packet_count	Number of packets of Compressed certification info.

Member Function Documentation

operator!=()

bool Recovery_metadata_Iterator::operator!=

(

Iterator &

b

)

The Recovery Metadata payload may contain multiple packets of compressed data.

The comparsion operator compare packets.

Return values

false	If m_count or packet number of packets is equal.
true	If m_count or packet number of packets is not equal.

operator*()

std::tuple< const unsigned char *, unsigned long long, unsigned long long > Recovery_metadata_Iterator::operator*

(

)

The Recovery Metadata payload may contain multiple packets of compressed data.

The dereference operator will return tuple of compressed payload, compressed payload length and length of payload before it was compressed i.e. uncompressed payload length for one of the packet.

Returns

the tuple of compressed payload, compressed payload length and uncompressed payload length.

operator++() [1/2]

Recovery_metadata_Iterator & Recovery_metadata_Iterator::operator++

(

)

The Recovery Metadata payload may contain multiple packets of compressed data.

The prefix increment operator will increment pointer to compressed payload position so that it can point to next Recovery Metadata compressed data packet.

Returns

a reference to Iterator object.

operator++() [2/2]

Recovery_metadata_Iterator Recovery_metadata_Iterator::operator++

(

int

)

The Recovery Metadata payload may contain multiple packets of compressed data.

The postfix increment operator will increment pointer to compressed payload position so that it can point to next Recovery Metadata compressed data packet.

Returns

a copy of Iterator before increment.

operator==()

bool Recovery_metadata_Iterator::operator==

(

Iterator &

b

)

The Recovery Metadata payload may contain multiple packets of compressed data.

The comparsion operator compare packets.

Return values

false	If m_count or packet number of packets is not equal.
true	If m_count or packet number of packets is equal.

Member Data Documentation

m_count

uint Recovery_metadata_message_compressed_parts::Iterator::m_count {0}

private

m_payload_length

unsigned long long Recovery_metadata_message_compressed_parts::Iterator::m_payload_length {0}

private

m_payload_pos

const unsigned char* Recovery_metadata_message_compressed_parts::Iterator::m_payload_pos

private

m_payload_uncompressed_length

unsigned long long Recovery_metadata_message_compressed_parts::Iterator::m_payload_uncompressed_length {0}

private

m_recovery_metadata_message

Recovery_metadata_message* Recovery_metadata_message_compressed_parts::Iterator::m_recovery_metadata_message {nullptr}

private

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

• plugin/group_replication/include/plugin_messages/recovery_metadata_message_compressed_parts.h
• plugin/group_replication/src/plugin_messages/recovery_metadata_message_compressed_parts.cc