xid_t Struct Reference

struct xid_t is binary compatible with the XID structure as in the X/Open CAE Specification, Distributed Transaction Processing: The XA Specification, X/Open Company Ltd., 1991. More...

#include <xa.h>

Public Member Functions
	xid_t ()
long	get_format_id () const
void	set_format_id (long v)
long	get_gtrid_length () const
void	set_gtrid_length (long v)
long	get_bqual_length () const
void	set_bqual_length (long v)
const char *	get_data () const
void	set_data (const void *v, long l)
void	reset ()
void	set (long f, const char *g, long gl, const char *b, long bl)
my_xid	get_my_xid () const
uchar *	key ()
const uchar *	key () const
uint	key_length () const
char *	serialize (char *buf) const
	The method fills XID in a buffer in format of GTRID,BQUAL,FORMATID where GTRID, BQUAL are represented as hex strings. More...
char *	xid_to_str (char *buf) const
	Get printable XID value. More...
bool	eq (const xid_t *xid) const
	Check if equal to another xid. More...
bool	is_null () const

Static Public Attributes
static const uint	ser_buf_size = 8 + 2 * XIDDATASIZE + 4 * sizeof(long) + 1

Private Member Functions
void	set (const xid_t *xid)
void	set (my_xid xid)
void	null ()

Private Attributes
long	formatID
	-1 means that the XID is null More...
long	gtrid_length
	value from 1 through 64 More...
long	bqual_length
	value from 1 through 64 More...
char	data [XIDDATASIZE]
	distributed trx identifier. More...

Friends
class	XID_STATE

Detailed Description

struct xid_t is binary compatible with the XID structure as in the X/Open CAE Specification, Distributed Transaction Processing: The XA Specification, X/Open Company Ltd., 1991.

http://www.opengroup.org/bookstore/catalog/c193.htm

See also

MYSQL_XID in mysql/plugin.h

Constructor & Destructor Documentation

xid_t()

xid_t::xid_t ( )

inline

Member Function Documentation

eq()

bool xid_t::eq ( const xid_t *  xid ) const

inline

Check if equal to another xid.

Parameters

[in]

xid

the id of another X/Open XA transaction

Returns

true iff formats, gtrid_length, bqual_length and the content of gtrid_length+bqual_length bytes is exactly the same

get_bqual_length()

long xid_t::get_bqual_length ( ) const

inline

get_data()

const char * xid_t::get_data ( ) const

inline

get_format_id()

long xid_t::get_format_id ( ) const

inline

get_gtrid_length()

long xid_t::get_gtrid_length ( ) const

inline

get_my_xid()

my_xid xid_t::get_my_xid

(

)

const

is_null()

bool xid_t::is_null ( ) const

inline

key() [1/2]

uchar * xid_t::key ( )

inline

key() [2/2]

const uchar * xid_t::key ( ) const

inline

key_length()

uint xid_t::key_length ( ) const

inline

null()

void xid_t::null ( )

inlineprivate

reset()

void xid_t::reset ( void  )

inline

serialize()

char * xid_t::serialize ( char *  buf ) const

inline

The method fills XID in a buffer in format of GTRID,BQUAL,FORMATID where GTRID, BQUAL are represented as hex strings.

Parameters

buf	a pointer to buffer

Returns

the value of the first argument

set() [1/3]

void xid_t::set ( const xid_t *  xid )

inlineprivate

set() [2/3]

void xid_t::set ( long  f, const char *  g, long  gl, const char *  b, long  bl  )

inline

set() [3/3]

void xid_t::set ( my_xid  xid )

private

set_bqual_length()

void xid_t::set_bqual_length ( long  v )

inline

set_data()

void xid_t::set_data ( const void *  v, long  l  )

inline

set_format_id()

void xid_t::set_format_id ( long  v )

inline

set_gtrid_length()

void xid_t::set_gtrid_length ( long  v )

inline

xid_to_str()

char * XID::xid_to_str

(

char *

buf

)

const

Get printable XID value.

Parameters

buf	pointer to the buffer where printable XID value has to be stored

Returns

pointer to the buffer passed in the first argument

Friends And Related Function Documentation

XID_STATE

friend class XID_STATE

friend

Member Data Documentation

bqual_length

long xid_t::bqual_length

private

value from 1 through 64

data

char xid_t::data[XIDDATASIZE]

private

distributed trx identifier.

not \0-terminated.

formatID

long xid_t::formatID

private

-1 means that the XID is null

gtrid_length

long xid_t::gtrid_length

private

value from 1 through 64

ser_buf_size

const uint xid_t::ser_buf_size = 8 + 2 * XIDDATASIZE + 4 * sizeof(long) + 1

static

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

• sql/xa.h
• sql/xa.cc