Shared_mem_listener Class Reference

This class abstract a shared memory listener to listen for connection events that connect via the shared memory. More...

#include <shared_memory_connection.h>

Public Member Functions
	Shared_mem_listener (const std::string *shared_memory_base_name)
	Constructor to create shared memory listener. More...
bool	setup_listener ()
	Set up a listener. More...
Channel_info *	listen_for_connection_event ()
	The body of the event loop that listen for connection events from clients. More...
bool	check_and_spawn_admin_connection_handler_thread () const
	Spawn admin connection handler thread if separate thread is required to accept admin connections. More...
void	close_listener ()
	Close the listener. More...

Private Member Functions
void	close_shared_mem ()

Private Attributes
std::string	m_shared_mem_name
HANDLE	m_connect_file_map
char *	m_connect_map
HANDLE	m_connect_named_mutex
HANDLE	m_event_connect_request
HANDLE	m_event_connect_answer
SECURITY_ATTRIBUTES *	m_sa_event
SECURITY_ATTRIBUTES *	m_sa_mapping
SECURITY_ATTRIBUTES *	m_sa_mutex
int	m_connect_number
char *	m_suffix_pos
char *	m_temp_buffer
HANDLE	m_handle_client_file_map
char *	m_handle_client_map
HANDLE	m_event_client_wrote
HANDLE	m_event_client_read
HANDLE	m_event_server_wrote
HANDLE	m_event_server_read
HANDLE	m_event_conn_closed

Detailed Description

This class abstract a shared memory listener to listen for connection events that connect via the shared memory.

Constructor & Destructor Documentation

Shared_mem_listener()

Shared_mem_listener::Shared_mem_listener ( const std::string *  shared_memory_base_name )

inline

Constructor to create shared memory listener.

Parameters

shared_memory_base_name

pointer to shared memory base name.

Member Function Documentation

check_and_spawn_admin_connection_handler_thread()

bool Shared_mem_listener::check_and_spawn_admin_connection_handler_thread ( ) const

inline

Spawn admin connection handler thread if separate thread is required to accept admin connections.

Currently we do not support shared memory admin connections. Hence this method is noop.

TODO: Implement for supporting admin connections via shared memory channel.

Returns

false as the method is a NOOP.

close_listener()

void Shared_mem_listener::close_listener

(

)

Close the listener.

close_shared_mem()

void Shared_mem_listener::close_shared_mem ( )

private

listen_for_connection_event()

Channel_info * Shared_mem_listener::listen_for_connection_event

(

)

The body of the event loop that listen for connection events from clients.

Return values

Channel_info

Channel_info object abstracting the connected client details for processing this connection.

setup_listener()

bool Shared_mem_listener::setup_listener

(

)

Set up a listener.

Return values

false

listener listener has been setup successfully to listen for connect events true failure in setting up the listener.

Member Data Documentation

m_connect_file_map

HANDLE Shared_mem_listener::m_connect_file_map

private

m_connect_map

char* Shared_mem_listener::m_connect_map

private

m_connect_named_mutex

HANDLE Shared_mem_listener::m_connect_named_mutex

private

m_connect_number

int Shared_mem_listener::m_connect_number

private

m_event_client_read

HANDLE Shared_mem_listener::m_event_client_read

private

m_event_client_wrote

HANDLE Shared_mem_listener::m_event_client_wrote

private

m_event_conn_closed

HANDLE Shared_mem_listener::m_event_conn_closed

private

m_event_connect_answer

HANDLE Shared_mem_listener::m_event_connect_answer

private

m_event_connect_request

HANDLE Shared_mem_listener::m_event_connect_request

private

m_event_server_read

HANDLE Shared_mem_listener::m_event_server_read

private

m_event_server_wrote

HANDLE Shared_mem_listener::m_event_server_wrote

private

m_handle_client_file_map

HANDLE Shared_mem_listener::m_handle_client_file_map

private

m_handle_client_map

char* Shared_mem_listener::m_handle_client_map

private

m_sa_event

SECURITY_ATTRIBUTES* Shared_mem_listener::m_sa_event

private

m_sa_mapping

SECURITY_ATTRIBUTES* Shared_mem_listener::m_sa_mapping

private

m_sa_mutex

SECURITY_ATTRIBUTES* Shared_mem_listener::m_sa_mutex

private

m_shared_mem_name

std::string Shared_mem_listener::m_shared_mem_name

private

m_suffix_pos

char* Shared_mem_listener::m_suffix_pos

private

m_temp_buffer

char* Shared_mem_listener::m_temp_buffer

private

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

• sql/conn_handler/shared_memory_connection.h
• sql/conn_handler/shared_memory_connection.cc