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trx0trx.ic, trx0trx.h, srv0srv.h, row0sel.h, dict0mem.h:

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Modifications for query cache + trxs, fix of q.c.+ foreign keys


innobase/include/dict0mem.h:
  Modifications for query cache + trxs, fix of q.c.+ foreign keys
innobase/include/row0sel.h:
  Modifications for query cache + trxs, fix of q.c.+ foreign keys
innobase/include/srv0srv.h:
  Modifications for query cache + trxs, fix of q.c.+ foreign keys
innobase/include/trx0trx.h:
  Modifications for query cache + trxs, fix of q.c.+ foreign keys
innobase/include/trx0trx.ic:
  Modifications for query cache + trxs, fix of q.c.+ foreign keys
This commit is contained in:
unknown 2002-09-20 05:18:55 +03:00
parent b8cfcf768e
commit ce62618ca7
5 changed files with 47 additions and 1 deletions
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7
innobase/include/dict0mem.h
View file

@ -333,6 +333,13 @@ struct dict_table_struct{
space from the lock heap of the trx:
otherwise the lock heap would grow rapidly
if we do a large insert from a select */
dulint query_cache_inv_trx_id;
/* transactions whose trx id < than this
number are not allowed to store to the MySQL
query cache or retrieve from it; when a trx
with undo logs commits, it sets this to the
value of the trx id counter for the tables it
had an IX lock on */
UT_LIST_BASE_NODE_T(lock_t)
locks; /* list of locks on the table */
/*----------------------*/

12
innobase/include/row0sel.h
View file

@ -133,6 +133,18 @@ row_search_for_mysql(
then prebuilt must have a pcur
with stored position! In opening of a
cursor 'direction' should be 0. */
/***********************************************************************
Checks if MySQL at the moment is allowed for this table to retrieve a
consistent read result, or store it to the query cache. */
ibool
row_search_check_if_query_cache_permitted(
/*======================================*/
/* out: TRUE if storing or retrieving from
the query cache is permitted */
trx_t* trx, /* in: transaction object */
char* norm_name); /* in: concatenation of database name, '/'
char, table name */
/* A structure for caching column values for prefetched rows */

2
innobase/include/srv0srv.h
View file

@ -53,7 +53,7 @@ extern ulint srv_n_log_files;
extern ulint srv_log_file_size;
extern ibool srv_log_archive_on;
extern ulint srv_log_buffer_size;
extern ulint srv_flush_log_at_trx_commit;
extern ibool srv_flush_log_at_trx_commit;
extern byte srv_latin1_ordering[256];/* The sort order table of the latin1
character set */

8
innobase/include/trx0trx.h
View file

@ -118,6 +118,14 @@ trx_start_if_not_started(
/*=====================*/
trx_t* trx); /* in: transaction */
/*****************************************************************
Starts the transaction if it is not yet started. Assumes we have reserved
the kernel mutex! */
UNIV_INLINE
void
trx_start_if_not_started_low(
/*=========================*/
trx_t* trx); /* in: transaction */
/*****************************************************************
Starts the transaction if it is not yet started. */
void

19
innobase/include/trx0trx.ic
View file

@ -21,3 +21,22 @@ trx_start_if_not_started(
trx_start(trx, ULINT_UNDEFINED);
}
}
/*****************************************************************
Starts the transaction if it is not yet started. Assumes we have reserved
the kernel mutex! */
UNIV_INLINE
void
trx_start_if_not_started_low(
/*=========================*/
trx_t* trx) /* in: transaction */
{
ut_ad(trx->conc_state != TRX_COMMITTED_IN_MEMORY);
if (trx->conc_state == TRX_NOT_STARTED) {
trx_start_low(trx, ULINT_UNDEFINED);
}
}