sys_vars_shared.h File Reference

#include <sql_priv.h>
#include "set_var.h"

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Classes
class	PolyLock
class	PolyLock_mutex
class	PolyLock_rwlock
class	AutoWLock
class	AutoRLock

Functions
bool	throw_bounds_warning (THD *thd, const char *name, bool fixed, bool is_unsigned, longlong v)
bool	throw_bounds_warning (THD *thd, const char *name, bool fixed, double v)
sys_var *	intern_find_sys_var (const char *str, uint length)

Variables
sys_var_chain	all_sys_vars

Detailed Description

"protected" interface to sys_var - server configuration variables.

This header is included by files implementing support and utility functions of sys_var's (set_var.cc) and files implementing classes in the sys_var hierarchy (sql_plugin.cc)

Definition in file sys_vars_shared.h.

Function Documentation

sys_var* intern_find_sys_var	(	const char *	str,
		uint	length
	)

Find a user set-table variable.

Parameters

str	Name of system variable to find
length	Length of variable. zero means that we should use strlen() on the variable

Return values

pointer	pointer to variable definitions
0	Unknown variable (error message is given)

Definition at line 518 of file set_var.cc.

bool throw_bounds_warning	(	THD *	thd,
		const char *	name,
		bool	fixed,
		bool	is_unsigned,
		longlong	v
	)

Throw warning (error in STRICT mode) if value for variable needed bounding. Plug-in interface also uses this.

Parameters

thd	thread handle
name	variable's name
fixed	did we have to correct the value? (throw warn/err if so)
is_unsigned	is value's type unsigned?
v	variable's value

Return values

true	on error, false otherwise (warning or ok)

Definition at line 296 of file set_var.cc.