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Merge trift2.:/MySQL/M50/clone-5.0

Browse source 
into  trift2.:/MySQL/M50/push-5.0


mysql-test/r/derived.result:
  Auto merged
mysql-test/r/ps_2myisam.result:
  Auto merged
mysql-test/r/ps_3innodb.result:
  Auto merged
mysql-test/r/ps_4heap.result:
  Auto merged
mysql-test/r/ps_5merge.result:
  Auto merged
mysql-test/r/ps_6bdb.result:
  Auto merged
mysql-test/r/ps_7ndb.result:
  Auto merged
mysql-test/r/sp.result:
  Auto merged
mysql-test/r/type_datetime.result:
  Auto merged
mysql-test/t/derived.test:
  Auto merged
mysql-test/t/sp.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
mysql-test/r/type_date.result:
  Null-merge 5.0.50 build clone:
  The test for bug#31221 is already in the receiving tree.
mysql-test/t/type_date.test:
  Null-merge 5.0.50 build clone:
  The test for bug#31221 is already in the receiving tree.
This commit is contained in:
unknown 2007-10-29 12:11:05 +01:00
commit b63ae73d50
1 changed files with 6 additions and 0 deletions
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6
sql/sql_cache.cc
View file

@ -1032,12 +1032,14 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
Query_cache_block_table *block_table, *block_table_end;
ulong tot_length;
Query_cache_query_flags flags;
#ifndef __WIN__
const uint spin_treshold= 50000;
const double lock_time_treshold= 0.1; /* Time in seconds */
uint spin_count= 0;
int lock_status= 0;
ulong new_time= 0;
ulong stop_time= 0;
#endif
DBUG_ENTER("Query_cache::send_result_to_client");
@ -1085,6 +1087,9 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
}
}
#ifdef __WIN__
STRUCT_LOCK(&structure_guard_mutex);
#else
stop_time= my_clock()+(ulong)lock_time_treshold*CLOCKS_PER_SEC;
while ((lock_status= pthread_mutex_trylock(&structure_guard_mutex)) == EBUSY
&& spin_count < spin_treshold
@ -1107,6 +1112,7 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
thd->lex->safe_to_cache_query= FALSE;
goto err;
}
#endif
if (query_cache_size == 0 || flush_in_progress)
{