The base message for group validation messages. More...

#include <group_validation_message.h>

Inheritance diagram for Group_validation_message:

Public Types
enum	enum_payload_item_type { PIT_UNKNOWN = 0 , PIT_VALIDATION_TYPE = 1 , PIT_VALIDATION_CHANNEL = 2 , PIT_MEMBER_WEIGHT = 3 , PIT_SENT_TIMESTAMP = 4 , PIT_MAX }
	Enum for message payload. More...

enum	enum_validation_message_type { GROUP_VALIDATION_UNKNOWN_MESSAGE = 0 , ELECTION_VALIDATION_MESSAGE = 1 , GROUP_VALIDATION_MESSAGE_END = 2 }
	Enum for the types of validation action. More...

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
	Group_validation_message (bool has_channels, uint member_weight_arg)
	Class constructor. More...

	Group_validation_message (const uchar *buf, size_t len)
	Message constructor for raw data. More...

	~Group_validation_message () override
	Class destructor. More...

bool	has_slave_channels () const
	Does the member has running channels. More...

uint	get_member_weight () const
	The election weight of this member. More...

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...

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 message contents for transmission. More...

void	decode_payload (const unsigned char buffer, const unsigned char ) override
	Message decoding method. 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
enum_validation_message_type	group_validation_message_type
	The message type. More...

bool	has_channels
	Does the member has channels? More...

uint	member_weight
	The member election weight. More...

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...

Detailed Description

The base message for group validation messages.

Member Enumeration Documentation

◆ enum_payload_item_type

enum Group_validation_message::enum_payload_item_type

Enum for message payload.

Enumerator
PIT_UNKNOWN
PIT_VALIDATION_TYPE
PIT_VALIDATION_CHANNEL
PIT_MEMBER_WEIGHT
PIT_SENT_TIMESTAMP
PIT_MAX

◆ enum_validation_message_type

enum Group_validation_message::enum_validation_message_type

Enum for the types of validation action.

Enumerator
GROUP_VALIDATION_UNKNOWN_MESSAGE
ELECTION_VALIDATION_MESSAGE
GROUP_VALIDATION_MESSAGE_END

Constructor & Destructor Documentation

◆ Group_validation_message() [1/2]

Group_validation_message::Group_validation_message	(	bool	has_channels,
		uint	member_weight_arg
	)

Class constructor.

Parameters

has_channels	This member has running slave channels?
member_weight_arg	The election weight of this member

◆ Group_validation_message() [2/2]

Group_validation_message::Group_validation_message	(	const uchar *	buf,
		size_t	len
	)

Message constructor for raw data.

Parameters

[in]	buf	raw data
[in]	len	raw length

◆ ~Group_validation_message()

Group_validation_message::~Group_validation_message ( )

overridedefault

Class destructor.

Member Function Documentation

◆ decode_payload()

void Group_validation_message::decode_payload	(	const unsigned char *	buffer,
		const unsigned char *
	)

overrideprotectedvirtual

Message decoding method.

Parameters

[in] buffer the received data

Implements Plugin_gcs_message.

◆ encode_payload()

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

overrideprotectedvirtual

Encodes the message contents for transmission.

Parameters

[out] buffer the message buffer to be written

Implements Plugin_gcs_message.

◆ get_member_weight()

uint Group_validation_message::get_member_weight ( ) const

The election weight of this member.

Returns: The member weight

◆ get_sent_timestamp()

uint64_t Group_validation_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.

◆ has_slave_channels()

bool Group_validation_message::has_slave_channels ( ) const

Does the member has running channels.

Returns: true if yes, false otherwise

Member Data Documentation

◆ group_validation_message_type

enum_validation_message_type Group_validation_message::group_validation_message_type

private

The message type.

◆ has_channels

bool Group_validation_message::has_channels

private

Does the member has channels?

◆ member_weight

uint Group_validation_message::member_weight

private

The member election weight.

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

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

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ enum_payload_item_type

◆ enum_validation_message_type

Constructor & Destructor Documentation

◆ Group_validation_message() [1/2]

◆ Group_validation_message() [2/2]

◆ ~Group_validation_message()

Member Function Documentation

◆ decode_payload()

◆ encode_payload()

◆ get_member_weight()

◆ get_sent_timestamp()

◆ has_slave_channels()

Member Data Documentation

◆ group_validation_message_type

◆ has_channels

◆ member_weight