ServerFirstConnector Class Reference

classic protocol handshake between router<->server and client<->router. More...

#include <classic_greeting_forwarder.h>

Inheritance diagram for ServerFirstConnector:

Public Types
enum class	Stage {   Connect , ServerGreeting , ServerGreeted , Error ,   Ok }
	stages of the handshake flow. More...
Public Types inherited from BasicProcessor
enum class	Result {   Again , RecvFromClient , SendToClient , RecvFromServer ,   RecvFromBoth , SendToServer , SendableToServer , Suspend ,   Done , Void }

Public Member Functions
stdx::expected< Result, std::error_code >	process () override
void	stage (Stage stage)
Stage	stage () const
Public Member Functions inherited from Processor
	BasicProcessor (MysqlRoutingClassicConnectionBase *conn)
Public Member Functions inherited from BasicProcessor
	BasicProcessor (MysqlRoutingClassicConnectionBase *conn)
virtual	~BasicProcessor ()=default
const MysqlRoutingClassicConnectionBase *	connection () const
MysqlRoutingClassicConnectionBase *	connection ()

Private Member Functions
stdx::expected< Result, std::error_code >	connect ()
stdx::expected< Result, std::error_code >	server_greeting ()
stdx::expected< Result, std::error_code >	server_greeted ()
	received an server::greeting or server::error from the server. More...

Private Attributes
Stage	stage_ {Stage::Connect}

Additional Inherited Members
Protected Member Functions inherited from ForwardingProcessor
stdx::expected< Result, std::error_code >	forward_server_to_client (bool noflush=false)
	forward the current packet from the server-side to the client-side. More...
stdx::expected< Result, std::error_code >	forward_client_to_server (bool noflush=false)
	forward the current packet from the client-side to the server-side. More...
stdx::expected< bool, std::error_code >	pool_server_connection ()
	move the server connection to the pool. More...
stdx::expected< Processor::Result, std::error_code >	socket_reconnect_start ()
	reconnect a socket. More...
stdx::expected< Processor::Result, std::error_code >	mysql_reconnect_start ()
	reconnect a mysql classic connection. More...
stdx::expected< Result, std::error_code >	recv_server_failed_and_check_client_socket (std::error_code ec)
	handle error-code of a failed receive() from the server-socket and check the status of the client socket. More...
stdx::expected< Processor::Result, std::error_code >	reconnect_send_error_msg (Channel *src_channel, ClassicProtocolState *src_protocol)
	send a Error msg based on the reconnect_error(). More...
void	reconnect_error (classic_protocol::message::server::Error err)
	set the reconnect error. More...
classic_protocol::message::server::Error	reconnect_error () const
	get the reconnect error. More...
Protected Member Functions inherited from Processor
stdx::expected< Result, std::error_code >	send_server_failed (std::error_code ec)
stdx::expected< Result, std::error_code >	recv_server_failed (std::error_code ec)
stdx::expected< Result, std::error_code >	send_client_failed (std::error_code ec)
stdx::expected< Result, std::error_code >	recv_client_failed (std::error_code ec)
stdx::expected< Result, std::error_code >	server_socket_failed (std::error_code ec)
stdx::expected< Result, std::error_code >	client_socket_failed (std::error_code ec)
stdx::expected< void, std::error_code >	discard_current_msg (Channel *src_channel, ClassicProtocolState *src_protocol)
	discard to current message. More...
void	trace (Tracer::Event e)
Tracer &	tracer ()
Static Protected Member Functions inherited from Processor
static void	log_fatal_error_code (const char *msg, std::error_code ec)
	log a message with error-code as error. More...

Detailed Description

classic protocol handshake between router<->server and client<->router.

a server::greeting processor which fetches a server::greeting to send it to the client.

c->r   : accept()
   r->s: connect()
   r<-s: server::greeting
c<-r   : ...

Member Enumeration Documentation

Stage

enum class ServerFirstConnector::Stage

strong

stages of the handshake flow.

Enumerator
Connect
ServerGreeting
ServerGreeted
Error
Ok

Member Function Documentation

connect()

stdx::expected< Processor::Result, std::error_code > ServerFirstConnector::connect ( )

private

process()

stdx::expected< Processor::Result, std::error_code > ServerFirstConnector::process ( )

overridevirtual

Implements BasicProcessor.

server_greeted()

stdx::expected< Processor::Result, std::error_code > ServerFirstConnector::server_greeted ( )

private

received an server::greeting or server::error from the server.

server_greeting()

stdx::expected< Processor::Result, std::error_code > ServerFirstConnector::server_greeting ( )

private

stage() [1/2]

Stage ServerFirstConnector::stage ( ) const

inline

stage() [2/2]

void ServerFirstConnector::stage ( Stage  stage )

inline

Member Data Documentation

stage_

Stage ServerFirstConnector::stage_ {Stage::Connect}

private

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

• router/src/routing/src/classic_greeting_forwarder.h
• router/src/routing/src/classic_greeting_forwarder.cc