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MySQL 5.1: xid_t Struct Reference

xid_t Struct Reference

#include <handler.h>

List of all members.


Public Member Functions

 xid_t ()
bool eq (struct xid_t *xid)
bool eq (long g, long b, const char *d)
void set (struct xid_t *xid)
void set (long f, const char *g, long gl, const char *b, long bl)
void set (ulonglong xid)
void set (long g, long b, const char *d)
bool is_null ()
void null ()
my_xid quick_get_my_xid ()
my_xid get_my_xid ()
uint length ()
byte * key ()
uint key_length ()

Public Attributes

long formatID
long gtrid_length
long bqual_length
char data [XIDDATASIZE]

Detailed Description

Definition at line 321 of file handler.h.

Constructor & Destructor Documentation

xid_t::xid_t (  )  [inline]

Definition at line 327 of file handler.h.

00327 {}                                /* Remove gcc warning */

Member Function Documentation

bool xid_t::eq ( long  g,
long  b,
const char *  d 
) [inline]

Definition at line 330 of file handler.h.

References bqual_length, data, gtrid_length, and memcmp().

00331   { return g == gtrid_length && b == bqual_length && !memcmp(d, data, g+b); }

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bool xid_t::eq ( struct xid_t *  xid  )  [inline]

Definition at line 328 of file handler.h.

References bqual_length, data, and gtrid_length.

00329   { return eq(xid->gtrid_length, xid->bqual_length, xid->data); }

my_xid xid_t::get_my_xid (  )  [inline]

Definition at line 365 of file handler.h.

References bqual_length, data, gtrid_length, memcmp(), MYSQL_XID_GTRID_LEN, MYSQL_XID_PREFIX, MYSQL_XID_PREFIX_LEN, quick_get_my_xid(), and server_id.

00366   {
00367     return gtrid_length == MYSQL_XID_GTRID_LEN && bqual_length == 0 &&
00368            !memcmp(data+MYSQL_XID_PREFIX_LEN, &server_id, sizeof(server_id)) &&
00369            !memcmp(data, MYSQL_XID_PREFIX, MYSQL_XID_PREFIX_LEN) ?
00370            quick_get_my_xid() : 0;
00371   }

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bool xid_t::is_null (  )  [inline]

Definition at line 357 of file handler.h.

References formatID.

00357 { return formatID == -1; }

byte* xid_t::key (  )  [inline]

Definition at line 377 of file handler.h.

References gtrid_length.

Referenced by xid_cache_insert(), and xid_cache_search().

00378   {
00379     return (byte *)&gtrid_length;
00380   }

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uint xid_t::key_length (  )  [inline]

Definition at line 381 of file handler.h.

References bqual_length, and gtrid_length.

Referenced by xid_cache_insert(), and xid_cache_search().

00382   {
00383     return sizeof(gtrid_length)+sizeof(bqual_length)+gtrid_length+bqual_length;
00384   }

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uint xid_t::length (  )  [inline]

Definition at line 372 of file handler.h.

References bqual_length, formatID, and gtrid_length.

Referenced by set().

00373   {
00374     return sizeof(formatID)+sizeof(gtrid_length)+sizeof(bqual_length)+
00375            gtrid_length+bqual_length;
00376   }

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void xid_t::null (  )  [inline]

Definition at line 358 of file handler.h.

References formatID.

00358 { formatID= -1; }

my_xid xid_t::quick_get_my_xid (  )  [inline]

Definition at line 359 of file handler.h.

References data, memcpy, and MYSQL_XID_OFFSET.

Referenced by get_my_xid().

00360   {
00361     my_xid tmp;
00362     memcpy(&tmp, data+MYSQL_XID_OFFSET, sizeof(tmp));
00363     return tmp;
00364   }

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void xid_t::set ( long  g,
long  b,
const char *  d 
) [inline]

Definition at line 350 of file handler.h.

References bqual_length, data, formatID, gtrid_length, and memcpy.

00351   {
00352     formatID= 1;
00353     gtrid_length= g;
00354     bqual_length= b;
00355     memcpy(data, d, g+b);
00356   }

void xid_t::set ( ulonglong  xid  )  [inline]

Definition at line 340 of file handler.h.

References data, formatID, gtrid_length, memcpy, MYSQL_XID_GTRID_LEN, MYSQL_XID_OFFSET, MYSQL_XID_PREFIX, MYSQL_XID_PREFIX_LEN, server_id, and set().

00341   {
00342     my_xid tmp;
00343     formatID= 1;
00344     set(MYSQL_XID_PREFIX_LEN, 0, MYSQL_XID_PREFIX);
00345     memcpy(data+MYSQL_XID_PREFIX_LEN, &server_id, sizeof(server_id));
00346     tmp= xid;
00347     memcpy(data+MYSQL_XID_OFFSET, &tmp, sizeof(tmp));
00348     gtrid_length=MYSQL_XID_GTRID_LEN;
00349   }

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

Definition at line 334 of file handler.h.

References bqual_length, data, formatID, gtrid_length, and memcpy.

00335   {
00336     formatID= f;
00337     memcpy(data, g, gtrid_length= gl);
00338     memcpy(data+gl, b, bqual_length= bl);
00339   }

void xid_t::set ( struct xid_t *  xid  )  [inline]

Definition at line 332 of file handler.h.

References length(), and memcpy.

Referenced by set().

00333   { memcpy(this, xid, xid->length()); }

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Member Data Documentation

long xid_t::bqual_length

Definition at line 324 of file handler.h.

Referenced by eq(), get_my_xid(), key_length(), length(), set(), trx_get_trx_by_xid(), trx_undo_read_xid(), trx_undo_write_xid(), and xid_to_str().

char xid_t::data

Definition at line 325 of file handler.h.

Referenced by eq(), get_my_xid(), quick_get_my_xid(), set(), trx_get_trx_by_xid(), trx_undo_read_xid(), trx_undo_write_xid(), and xid_to_str().

long xid_t::formatID

Definition at line 322 of file handler.h.

Referenced by is_null(), length(), null(), set(), trx_create(), trx_undo_read_xid(), and trx_undo_write_xid().

long xid_t::gtrid_length

Definition at line 323 of file handler.h.

Referenced by eq(), get_my_xid(), key(), key_length(), length(), set(), trx_get_trx_by_xid(), trx_undo_read_xid(), trx_undo_write_xid(), and xid_to_str().

The documentation for this struct was generated from the following files:
Generated on Sun Sep 10 00:27:27 2006 for MySQL 5.1 by  doxygen 1.4.7