protocol_classic.h File Reference

#include <stddef.h>
#include <sys/types.h>
#include "field_types.h"
#include "m_ctype.h"
#include "my_command.h"
#include "my_inttypes.h"
#include "my_io.h"
#include "mysql_com.h"
#include "mysql_time.h"
#include "sql/protocol.h"
#include "violite.h"

Go to the source code of this file.

Classes
class	Protocol_classic
class	Protocol_text
	Class used for the old (MySQL 4.0 protocol). More...
class	Protocol_binary

Functions
bool	net_send_error (THD *thd, uint sql_errno, const char *err)
	Send a error string to client. More...
bool	net_send_error (NET *net, uint sql_errno, const char *err)
	Send a error string to client using net struct. More...
uchar *	net_store_data (uchar *to, const uchar *from, size_t length)
bool	store (Protocol *prot, I_List< i_string > *str_list)
	Send a set of strings as one long string with ',' in between. More...

Function Documentation

net_send_error() [1/2]

bool net_send_error	(	NET *	net,
		uint	sql_errno,
		const char *	err
	)

Send a error string to client using net struct.

This is used initial connection handling code.

Parameters

net	Low-level net struct
sql_errno	The error code to send
err	A pointer to the error message

Return values

false	The message was sent to the client
true	An error occurred and the message wasn't sent properly

net_send_error() [2/2]

bool net_send_error	(	THD *	thd,
		uint	sql_errno,
		const char *	err
	)

Send a error string to client.

Design note:

net_printf_error and net_send_error are low-level functions that shall be used only when a new connection is being established or at server startup.

For SIGNAL/RESIGNAL and GET DIAGNOSTICS functionality it's critical that every error that can be intercepted is issued in one place only, my_message_sql.

Parameters

thd	Thread handler
sql_errno	The error code to send
err	A pointer to the error message

Return values

false	The message was sent to the client
true	An error occurred and the message wasn't sent properly

net_store_data()

uchar * net_store_data	(	uchar *	to,
		const uchar *	from,
		size_t	length
	)

store()

bool store	(	Protocol *	prot,
		I_List< i_string > *	str_list
	)

Send a set of strings as one long string with ',' in between.