This abstract base class represents connection channel information about a new connection. More...

#include <channel_info.h>

Inheritance diagram for Channel_info:

Public Member Functions
virtual	~Channel_info ()=default

virtual THD *	create_thd ()
	Instantiate and initialize THD object and vio. More...

virtual void	send_error_and_close_channel (uint errorcode, int error, bool senderror)
	Send error back to the client and close the channel. More...

ulonglong	get_prior_thr_create_utime () const

void	set_prior_thr_create_utime ()

virtual bool	is_admin_connection () const

Protected Member Functions
virtual Vio *	create_and_init_vio () const =0
	Create and initialize a Vio object. More...

	Channel_info ()

Private Attributes
ulonglong	prior_thr_create_utime

Detailed Description

This abstract base class represents connection channel information about a new connection.

Its subclasses encapsulate differences between different connection channel types.

Currently we support local and TCP/IP sockets (all platforms), named pipes and shared memory (Windows only).

Constructor & Destructor Documentation

◆ Channel_info()

Channel_info::Channel_info ( )

inlineprotected

◆ ~Channel_info()

virtual Channel_info::~Channel_info ( )

virtualdefault

Member Function Documentation

◆ create_and_init_vio()

virtual Vio * Channel_info::create_and_init_vio ( ) const

protectedpure virtual

Create and initialize a Vio object.

Returns: a pointer to the initialized a vio object.

Implemented in Channel_info_named_pipe, Channel_info_shared_mem, Channel_info_local_socket, and Channel_info_tcpip_socket.

◆ create_thd()

THD * Channel_info::create_thd ( )

virtual

Instantiate and initialize THD object and vio.

Returns: pointer to initialized THD object.

Return values

NULL	THD object allocation fails.

Reimplemented in Channel_info_named_pipe, Channel_info_shared_mem, Channel_info_local_socket, and Channel_info_tcpip_socket.

◆ get_prior_thr_create_utime()

ulonglong Channel_info::get_prior_thr_create_utime ( ) const

inline

◆ is_admin_connection()

virtual bool Channel_info::is_admin_connection ( ) const

inlinevirtual

Reimplemented in Channel_info_tcpip_socket.

◆ send_error_and_close_channel()

void Channel_info::send_error_and_close_channel	(	uint	errorcode,
		int	error,
		bool	senderror
	)

virtual

Send error back to the client and close the channel.

Parameters

errorcode	code indicating type of error.
error	operating system specific error code.
senderror	true if the error need to be sent to client else false.

Reimplemented in Channel_info_named_pipe, Channel_info_shared_mem, Channel_info_local_socket, and Channel_info_tcpip_socket.

◆ set_prior_thr_create_utime()

void Channel_info::set_prior_thr_create_utime ( )

inline

Member Data Documentation

◆ prior_thr_create_utime

ulonglong Channel_info::prior_thr_create_utime

private

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

sql/conn_handler/channel_info.h
sql/conn_handler/channel_info.cc

Public Member Functions

Protected Member Functions

Private Attributes