#include <transaction_message.h>

Inheritance diagram for Transaction_message:

Public Types
enum	enum_payload_item_type { PIT_UNKNOWN = 0 , PIT_TRANSACTION_DATA = 1 , PIT_SENT_TIMESTAMP = 2 , PIT_MAX = 3 }

Public Types inherited from Plugin_gcs_message
enum	enum_cargo_type { CT_UNKNOWN = 0 , CT_CERTIFICATION_MESSAGE = 1 , CT_TRANSACTION_MESSAGE = 2 , CT_RECOVERY_MESSAGE = 3 , CT_MEMBER_INFO_MESSAGE = 4 , CT_MEMBER_INFO_MANAGER_MESSAGE = 5 , CT_PIPELINE_STATS_MEMBER_MESSAGE = 6 , CT_SINGLE_PRIMARY_MESSAGE = 7 , CT_GROUP_ACTION_MESSAGE = 8 , CT_GROUP_VALIDATION_MESSAGE = 9 , CT_SYNC_BEFORE_EXECUTION_MESSAGE = 10 , CT_TRANSACTION_WITH_GUARANTEE_MESSAGE = 11 , CT_TRANSACTION_PREPARED_MESSAGE = 12 , CT_MESSAGE_SERVICE_MESSAGE = 13 , CT_RECOVERY_METADATA_MESSAGE = 14 , CT_MAX = 15 }
	The different cargo type codes. More...

Public Member Functions
	Transaction_message (uint64_t payload_capacity)
	Constructor. More...

	~Transaction_message () override

bool	write (const unsigned char *buffer, my_off_t length) override
	Overrides Basic_ostream::write(). More...

uint64_t	length () override
	Length of the message. More...

Gcs_message_data *	get_message_data_and_reset () override
	Get the Gcs_message_data object, which contains the serialized transaction data. More...

Public Member Functions inherited from Transaction_message_interface
	Transaction_message_interface (enum_cargo_type cargo_type)

	~Transaction_message_interface () override=default

Public Member Functions inherited from Plugin_gcs_message
virtual	~Plugin_gcs_message ()=default

int	get_version ()

unsigned short	get_header_length ()

enum_cargo_type	get_cargo_type () const

unsigned long long	get_msg_length ()

void	encode (std::vector< unsigned char > *buffer) const
	Encodes the contents of this instance into the buffer. More...

void	decode (const unsigned char *buffer, size_t length)
	Decodes the contents of the buffer and sets the field values according to the values decoded. More...

Public Member Functions inherited from Basic_ostream
virtual	~Basic_ostream ()=default

Static Public Member Functions
static uint64_t	get_sent_timestamp (const unsigned char *buffer, size_t length)
	Return the time at which the message contained in the buffer was sent. More...

Static Public Member Functions inherited from Plugin_gcs_message
static enum_cargo_type	get_cargo_type (const unsigned char *buffer)
	Return the cargo type of a given message buffer, without decode the complete message. More...

static void	get_first_payload_item_raw_data (const unsigned char buffer, const unsigned char payload_item_data, size_t payload_item_length)
	Return the raw data of the first payload item of a given message buffer, without decode the complete message. More...

static bool	get_payload_item_type_raw_data (const unsigned char buffer, const unsigned char end, uint16 payload_item_type, const unsigned char *payload_item_data, unsigned long long payload_item_length)
	Return the raw data of the payload item of a given payload type of a given message buffer. More...

Protected Member Functions
void	encode_payload (std::vector< unsigned char > *buffer) const override
	Encodes the contents of this instance payload into the buffer. More...

void	decode_payload (const unsigned char buffer, const unsigned char ) override
	Decodes the contents of the buffer and sets the payload field values according to the values decoded. More...

Protected Member Functions inherited from Plugin_gcs_message
	Plugin_gcs_message (enum_cargo_type cargo_type)
	Plugin_gcs_message constructor. More...

void	encode_header (std::vector< unsigned char > *buffer) const
	Encodes the header of this instance into the buffer. More...

void	decode_header (const unsigned char **slider)
	Decodes the header of the buffer into this instance. More...

void	encode_payload_item_type_and_length (std::vector< unsigned char > *buffer, uint16 payload_item_type, unsigned long long payload_item_length) const
	Encodes the given payload item type and length into the buffer. More...

void	encode_payload_item_char (std::vector< unsigned char > *buffer, uint16 type, unsigned char value) const
	Encodes the given payload item (type, length and value) into the buffer as a char (1 byte). More...

void	encode_payload_item_int2 (std::vector< unsigned char > *buffer, uint16 type, uint16 value) const
	Encodes the given payload item (type, length and value) into the buffer as a 2 bytes integer. More...

void	decode_payload_item_int2 (const unsigned char *buffer, uint16 type, uint16 *value)
	Decodes the given payload item (type, length and value) from the buffer as a 2 bytes integer. More...

void	encode_payload_item_int4 (std::vector< unsigned char > *buffer, uint16 type, uint32 value) const
	Encodes the given payload item (type, length and value) into the buffer as a 4 bytes integer. More...

void	decode_payload_item_int4 (const unsigned char *buffer, uint16 type, uint32 *value)
	Decodes the given payload item (type, length and value) from the buffer as a 4 bytes integer. More...

void	encode_payload_item_int8 (std::vector< unsigned char > *buffer, uint16 type, ulonglong value) const
	Encodes the given payload item (type, length and value) into the buffer as a 8 bytes integer. More...

void	encode_payload_item_string (std::vector< unsigned char > buffer, uint16 type, const char value, unsigned long long length) const
	Encodes the given payload item (type, length and value) into the buffer as a char array (variable size). More...

void	decode_payload_item_string (const unsigned char *buffer, uint16 type, std::string value, unsigned long long length)
	Decodes the given payload item (type, length and value) from the buffer as a char array (variable size). More...

void	encode_payload_item_bytes (std::vector< unsigned char > buffer, uint16 type, const unsigned char value, unsigned long long length) const
	Encodes the given payload item (type, length and value) into the buffer as a byte buffer (variable size). More...

void	decode_payload_item_bytes (const unsigned char *buffer, uint16 type, unsigned char value, unsigned long long length)
	Decodes the given payload item (type, length and value) from the buffer as a byte buffer (variable size). More...

Private Attributes
Gcs_message_data *	m_gcs_message_data {nullptr}

Static Private Attributes
static const uint64_t	s_sent_timestamp_pit_size

Additional Inherited Members
Static Public Attributes inherited from Plugin_gcs_message
static const int	PLUGIN_GCS_MESSAGE_VERSION = 1
	The protocol version number. More...

static const unsigned int	WIRE_VERSION_SIZE = 4
	The protocol version number. More...

static const unsigned int	WIRE_HD_LEN_SIZE = 2
	The on-the-wire size of the header length field. More...

static const unsigned int	WIRE_MSG_LEN_SIZE = 8
	The on-the-wire size of the message size field. More...

static const unsigned int	WIRE_CARGO_TYPE_SIZE = 2
	The on-the-wire size of the cargo type field. More...

static const unsigned int	WIRE_FIXED_HEADER_SIZE
	The on-the-wire size of the fixed header. More...

static const unsigned int	WIRE_PAYLOAD_ITEM_TYPE_SIZE = 2
	The on-the-wire size of the each payload item type field. More...

static const unsigned int	WIRE_PAYLOAD_ITEM_LEN_SIZE = 8
	The on-the-wire size of the each payload item size field. More...

static const unsigned int	WIRE_PAYLOAD_ITEM_HEADER_SIZE
	The on-the-wire size of the payload item header. More...

Static Protected Member Functions inherited from Plugin_gcs_message
static int64_t	get_sent_timestamp (const unsigned char *buffer, size_t length, const uint16 timestamp_payload_item_type)
	Return the time at which the message contained in the buffer was sent. More...

static void	decode_payload_item_type_and_length (const unsigned char *buffer, uint16 payload_item_type, unsigned long long *payload_item_length)
	Decodes the given payload item type and length from the buffer. More...

static void	decode_payload_item_char (const unsigned char *buffer, uint16 type, unsigned char *value)
	Decodes the given payload item (type, length and value) from the buffer as a char (1 byte). More...

static void	decode_payload_item_int8 (const unsigned char *buffer, uint16 type, uint64 *value)
	Decodes the given payload item (type, length and value) from the buffer as a 8 bytes integer. More...

Member Enumeration Documentation

◆ enum_payload_item_type

enum Transaction_message::enum_payload_item_type

Enumerator
PIT_UNKNOWN
PIT_TRANSACTION_DATA
PIT_SENT_TIMESTAMP
PIT_MAX

Constructor & Destructor Documentation

◆ Transaction_message()

Transaction_message::Transaction_message ( uint64_t payload_capacity )

Constructor.

Parameters

[in] payload_capacity The transaction data size

◆ ~Transaction_message()

Transaction_message::~Transaction_message ( )

override

Member Function Documentation

◆ decode_payload()

void Transaction_message::decode_payload	(	const unsigned char *	buffer,
		const unsigned char *	end
	)

overrideprotectedvirtual

Decodes the contents of the buffer and sets the payload field values according to the values decoded.

Parameters

[in]	buffer	the buffer to decode from.
[in]	end	the end of the buffer.

Implements Plugin_gcs_message.

◆ encode_payload()

void Transaction_message::encode_payload ( std::vector< unsigned char > * buffer ) const

overrideprotectedvirtual

Encodes the contents of this instance payload into the buffer.

Parameters

[out] buffer the buffer to encode to.

Implements Plugin_gcs_message.

◆ get_message_data_and_reset()

Gcs_message_data * Transaction_message::get_message_data_and_reset ( )

overridevirtual

Get the Gcs_message_data object, which contains the serialized transaction data.

The internal Gcs_message_data is nullified, to avoid further usage of this Transaction object and the caller receives a pointer to the previously internal Gcs_message_data, which whom it is now responsible.

Returns: the serialized transaction data in a Gcs_message_data object

Implements Transaction_message_interface.

◆ get_sent_timestamp()

uint64_t Transaction_message::get_sent_timestamp	(	const unsigned char *	buffer,
		size_t	length
	)

static

Return the time at which the message contained in the buffer was sent.

See also: Metrics_handler::get_current_time()

Parameters

[in]	buffer	the buffer to decode from.
[in]	length	the buffer length

Returns: the time on which the message was sent.

◆ length()

uint64_t Transaction_message::length ( )

overridevirtual

Length of the message.

Returns: message length

Implements Transaction_message_interface.

◆ write()

bool Transaction_message::write	(	const unsigned char *	buffer,
		my_off_t	length
	)

overridevirtual

Overrides Basic_ostream::write().

Transaction_message is a Basic_ostream, which appends data into the a Gcs_message_data.

Parameters

[in]	buffer	where the data will be read
[in]	length	the length of the data to write

Returns: returns false if succeeds, otherwise true is returned.

Implements Basic_ostream.

Member Data Documentation

◆ m_gcs_message_data

Gcs_message_data* Transaction_message::m_gcs_message_data {nullptr}

private

◆ s_sent_timestamp_pit_size

const uint64_t Transaction_message::s_sent_timestamp_pit_size

staticprivate

Initial value:

=

Plugin_gcs_message::WIRE_PAYLOAD_ITEM_HEADER_SIZE + 8

Plugin_gcs_message::WIRE_PAYLOAD_ITEM_HEADER_SIZE

static const unsigned int WIRE_PAYLOAD_ITEM_HEADER_SIZE

The on-the-wire size of the payload item header.

Definition: gcs_plugin_messages.h:109

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

plugin/group_replication/include/plugin_messages/transaction_message.h
plugin/group_replication/src/plugin_messages/transaction_message.cc

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Member Enumeration Documentation

◆ enum_payload_item_type

Constructor & Destructor Documentation

◆ Transaction_message()

◆ ~Transaction_message()

Member Function Documentation

◆ decode_payload()

◆ encode_payload()

◆ get_message_data_and_reset()

◆ get_sent_timestamp()

◆ length()

◆ write()

Member Data Documentation

◆ m_gcs_message_data

◆ s_sent_timestamp_pit_size