anonymous_namespace{opt_trace.cc}::Buffer Class Reference

A wrapper of class String, for storing query or trace. More...

Public Member Functions
	Buffer ()
size_t	alloced_length () const
size_t	length () const
void	prealloc ()
	pro-actively extend buffer if soon short of space More...
char *	c_ptr_safe ()
const char *	ptr () const
const CHARSET_INFO *	charset () const
void	set_charset (const CHARSET_INFO *charset)
void	append (const char *str, size_t length)
	Like String::append() More...
void	append (const char *str)
void	append_escaped (const char *str, size_t length)
	Like append() but escapes certain characters for string values to be JSON-compliant. More...
void	append (char chr)
size_t	get_allowed_mem_size () const
size_t	get_missing_bytes () const
void	set_allowed_mem_size (size_t a)

Private Attributes
size_t	allowed_mem_size
	allowed memory size for this String More...
size_t	missing_bytes
	how many bytes could not be added More...
String	string_buf

Detailed Description

A wrapper of class String, for storing query or trace.

Any memory allocation error in this class is reported by my_error(), see OOM_HANDLING in opt_trace.h.

Constructor & Destructor Documentation

Buffer()

anonymous_namespace{opt_trace.cc}::Buffer::Buffer ( )

inline

Member Function Documentation

alloced_length()

size_t anonymous_namespace{opt_trace.cc}::Buffer::alloced_length ( ) const

inline

append() [1/3]

void anonymous_namespace{opt_trace.cc}::Buffer::append

(

char

chr

)

append() [2/3]

void anonymous_namespace{opt_trace.cc}::Buffer::append ( const char *  str )

inline

append() [3/3]

void anonymous_namespace{opt_trace.cc}::Buffer::append	(	const char *	str,
		size_t	length
	)

Like String::append()

Parameters

str	String, in this instance's charset
length	length of string

append_escaped()

void anonymous_namespace{opt_trace.cc}::Buffer::append_escaped	(	const char *	str,
		size_t	length
	)

Like append() but escapes certain characters for string values to be JSON-compliant.

Parameters

str	String in UTF8
length	length of string

c_ptr_safe()

char * anonymous_namespace{opt_trace.cc}::Buffer::c_ptr_safe ( )

inline

charset()

const CHARSET_INFO * anonymous_namespace{opt_trace.cc}::Buffer::charset ( ) const

inline

get_allowed_mem_size()

size_t anonymous_namespace{opt_trace.cc}::Buffer::get_allowed_mem_size ( ) const

inline

get_missing_bytes()

size_t anonymous_namespace{opt_trace.cc}::Buffer::get_missing_bytes ( ) const

inline

length()

size_t anonymous_namespace{opt_trace.cc}::Buffer::length ( ) const

inline

prealloc()

void anonymous_namespace{opt_trace.cc}::Buffer::prealloc

(

)

pro-actively extend buffer if soon short of space

ptr()

const char * anonymous_namespace{opt_trace.cc}::Buffer::ptr ( ) const

inline

set_allowed_mem_size()

void anonymous_namespace{opt_trace.cc}::Buffer::set_allowed_mem_size ( size_t  a )

inline

set_charset()

void anonymous_namespace{opt_trace.cc}::Buffer::set_charset ( const CHARSET_INFO *  charset )

inline

Member Data Documentation

allowed_mem_size

size_t anonymous_namespace{opt_trace.cc}::Buffer::allowed_mem_size

private

allowed memory size for this String

missing_bytes

size_t anonymous_namespace{opt_trace.cc}::Buffer::missing_bytes

private

how many bytes could not be added

string_buf

String anonymous_namespace{opt_trace.cc}::Buffer::string_buf

private

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

• sql/opt_trace.cc