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authorunknown <monty@mashka.mysql.fi>2002-06-11 11:20:31 +0300
committerunknown <monty@mashka.mysql.fi>2002-06-11 11:20:31 +0300
commit70aa7424c41c45a8fb171bbdd9e24d74b70a7765 (patch)
tree8fcaabe013fff43cf466235067f2c47f0cd66531 /sql/item_func.cc
parent30d5eb22877d0546fb4bd93ead7e8602285d449b (diff)
downloadmariadb-git-70aa7424c41c45a8fb171bbdd9e24d74b70a7765.tar.gz
Big code cleanup/review before 4.0.2 release.
(All commit emails since 4.0.1 checked) This had to be done now, before the 4.1 tree changes to much, to make it easy to propagate bug fixes to the 4.1 tree. BUILD/SETUP.sh: Added -DPEDANTIC_SAFEMALLOC as standard debug option Docs/manual.texi: Changes for new version. client/mysql.cc: Fixed default value for rehash cleanup client/mysqladmin.c: Cleanup client/mysqlbinlog.cc: cleanup client/mysqldump.c: Cleanup client/mysqlmanager-pwgen.c: Cleanup client/mysqlmanagerc.c: Cleanup client/mysqltest.c: Cleanup dbug/dbug.c: Cleanup extra/resolve_stack_dump.c: Cleanup & Simple optimizations include/ft_global.h: Cleanup include/my_alloc.h: Cleanup include/my_global.h: Cleanup include/my_sys.h: Cleanup include/myisam.h: Cleanup libmysql/libmysql.c: Cleanup libmysql/manager.c: Cleanup myisam/ft_boolean_search.c: Cleanup myisam/ft_dump.c: Change strcpy -> strmov myisam/ft_eval.c: Cleanup myisam/ft_nlq_search.c: Cleanup myisam/ft_test1.c: strncpy -> strnmov myisam/ft_update.c: Cleanup myisam/mi_static.c: Cleanup myisam/mi_test2.c: Cleanup myisam/mi_write.c: Cleanup mysys/mf_fn_ext.c: Cleanup mysys/mf_iocache.c: Cleanup mysys/mf_iocache2.c: Cleanup mysys/my_getopt.c: Cleanup mysys/my_read.c: Cleanup mysys/my_thr_init.c: Cleanup mysys/queues.c: Cleanup mysys/safemalloc.c: Cleanup sql/field.cc: Indentation cleanups sql/ha_berkeley.cc: Indentation cleanups sql/ha_myisam.cc: Cleanup sql/item.h: Indentation cleanups sql/item_cmpfunc.cc: Indentation cleanups sql/item_create.cc: cleanup sql/item_func.cc: Cleanup sql/item_func.h: Indentation cleanups sql/item_strfunc.cc: Indentation cleanups sql/item_sum.cc: Indentation cleanups sql/item_timefunc.cc: Indentation cleanups sql/lock.cc: Indentation cleanups sql/log.cc: Cleanup strnmov -> strmake sql/log_event.cc: Cleanup + optimizations Fixed memory leak Added missing pthread_mutex_unlock() (On error condition) sql/log_event.h: Indentation and comment cleanup Merged #ifdef's into common blocks for better readability sql/mini_client.cc: Indentation cleanup sql/mysql_priv.h: Cleanup Changed int function to bool sql/mysqld.cc: Indentation and comment cleanup sql/net_pkg.cc: Indentation cleanup sql/net_serv.cc: Changed int function -> bool sql/nt_servc.cc: Cleanup sql/opt_range.cc: Indentation cleanup sql/repl_failsafe.cc: Cleanup + simple optimization strnmov -> strmake sql/slave.cc: strnmov -> strmake Cleanups sql/slave.h: Cleanup sql/sql_acl.cc: Indentation and DBUG_PRINT cleanup Changed WITH MAX... to not use = sql/sql_base.cc: Indentation cleanup sql/sql_cache.cc: Indentation cleanup sql/sql_class.cc: Indentation cleanup sql/sql_class.h: Renamed some struct slots sql/sql_delete.cc: Indentation cleanup sql/sql_handler.cc: Indentation cleanup sql/sql_insert.cc: Use new slot names. sql/sql_lex.cc: Indentation cleanup sql/sql_lex.h: Indentation cleanup sql/sql_load.cc: Indentation cleanup sql/sql_parse.cc: Indentation cleanup Removed not used check from LOCK TABLES sql/sql_repl.cc: strnmov -> strmake sql/sql_repl.h: Removed test if file is included (We want to know if it's included twice to avoid this) sql/sql_select.cc: Indentation cleanup sql/sql_show.cc: Indentation cleanup sql/sql_string.cc: Indentation cleanup sql/sql_table.cc: Indentation cleanup sql/sql_union.cc: Use renamed struct slot sql/sql_update.cc: Indentation cleanup sql/sql_yacc.yy: Removed = after GRANT ... MAX_ to make the syntax uniform sql/table.cc: Indentation cleanup sql/table.h: Indentation cleanup sql/time.cc: Indentation cleanup sql/udf_example.cc: Indentation cleanup sql/unireg.cc: strnmov -> strmake tests/grant.pl: Added test for LOCK TABLES tools/mysqlmanager.c: Cleanup fopen() -> my_fopen() vio/viosocket.c: DBUG_PRINT cleanups vio/viosslfactories.c: Indentation cleanup Checking of results from malloc() Fixed possible memory leak BitKeeper/etc/ignore: Added scripts/mysql_secure_installation to the ignore list BitKeeper/etc/logging_ok: Logging to logging@openlogging.org accepted
Diffstat (limited to 'sql/item_func.cc')
-rw-r--r--sql/item_func.cc60
1 files changed, 35 insertions, 25 deletions
diff --git a/sql/item_func.cc b/sql/item_func.cc
index 4a8c301e894..accc5219a71 100644
--- a/sql/item_func.cc
+++ b/sql/item_func.cc
@@ -1502,10 +1502,11 @@ void debug_sync_point(const char* lock_name, uint lock_timeout)
thd->ull=0;
}
- /* if the lock has not been aquired by some client, we do not want to
- create an entry for it, since we immediately release the lock. In
- this case, we will not be waiting, but rather, just waste CPU and
- memory on the whole deal
+ /*
+ If the lock has not been aquired by some client, we do not want to
+ create an entry for it, since we immediately release the lock. In
+ this case, we will not be waiting, but rather, just waste CPU and
+ memory on the whole deal
*/
if (!(ull= ((ULL*) hash_search(&hash_user_locks,lock_name,
lock_name_len))))
@@ -1515,8 +1516,10 @@ void debug_sync_point(const char* lock_name, uint lock_timeout)
}
ull->count++;
- /* structure is now initialized. Try to get the lock */
- /* Set up control struct to allow others to abort locks */
+ /*
+ Structure is now initialized. Try to get the lock.
+ Set up control struct to allow others to abort locks
+ */
thd->proc_info="User lock";
thd->mysys_var->current_mutex= &LOCK_user_locks;
thd->mysys_var->current_cond= &ull->cond;
@@ -1603,8 +1606,10 @@ longlong Item_func_get_lock::val_int()
}
ull->count++;
- /* structure is now initialized. Try to get the lock */
- /* Set up control struct to allow others to abort locks */
+ /*
+ Structure is now initialized. Try to get the lock.
+ Set up control struct to allow others to abort locks.
+ */
thd->proc_info="User lock";
thd->mysys_var->current_mutex= &LOCK_user_locks;
thd->mysys_var->current_cond= &ull->cond;
@@ -1645,10 +1650,11 @@ longlong Item_func_get_lock::val_int()
/*
-** Release a user level lock.
-** Returns 1 if lock released
-** 0 if lock wasn't held
-** NULL if no such lock
+ Release a user level lock.
+ Return:
+ 1 if lock released
+ 0 if lock wasn't held
+ (SQL) NULL if no such lock
*/
longlong Item_func_release_lock::val_int()
@@ -1717,6 +1723,7 @@ longlong Item_func_benchmark::val_int()
return 0;
}
+
#define extra_size sizeof(double)
static user_var_entry *get_variable(HASH *hash, LEX_STRING &name,
@@ -1980,6 +1987,7 @@ void Item_func_get_user_var::print(String *str)
str->append(')');
}
+
bool Item_func_get_user_var::eq(const Item *item, bool binary_cmp) const
{
/* Assume we don't have rtti */
@@ -2087,10 +2095,11 @@ bool Item_func_match::fix_fields(THD *thd,struct st_table_list *tlist)
maybe_null=1;
join_key=0;
- /* const_item is assumed in quite a bit of places, so it would be difficult
- to remove; If it would ever to be removed, this should include
- modifications to find_best and auto_close as complement to auto_init code
- above.
+ /*
+ const_item is assumed in quite a bit of places, so it would be difficult
+ to remove; If it would ever to be removed, this should include
+ modifications to find_best and auto_close as complement to auto_init code
+ above.
*/
if (Item_func::fix_fields(thd,tlist) || !const_item())
{
@@ -2110,7 +2119,7 @@ bool Item_func_match::fix_fields(THD *thd,struct st_table_list *tlist)
}
/* check that all columns come from the same table */
if (count_bits(used_tables_cache) != 1)
- key=NO_SUCH_KEY;
+ key=NO_SUCH_KEY;
const_item_cache=0;
table=((Item_field *)fields.head())->field->table;
table->fulltext_searched=1;
@@ -2124,6 +2133,7 @@ bool Item_func_match::fix_fields(THD *thd,struct st_table_list *tlist)
return 0;
}
+
bool Item_func_match::fix_index()
{
List_iterator_fast<Item> li(fields);
@@ -2200,16 +2210,15 @@ err:
return 0;
}
my_printf_error(ER_FT_MATCHING_KEY_NOT_FOUND,
- ER(ER_FT_MATCHING_KEY_NOT_FOUND),MYF(0));
+ ER(ER_FT_MATCHING_KEY_NOT_FOUND),MYF(0));
return 1;
}
+
bool Item_func_match::eq(const Item *item, bool binary_cmp) const
{
- if (item->type() != FUNC_ITEM)
- return 0;
-
- if (func_name() != ((Item_func*)item)->func_name())
+ if (item->type() != FUNC_ITEM ||
+ func_name() != ((Item_func*)item)->func_name())
return 0;
Item_func_match *ifm=(Item_func_match*) item;
@@ -2221,6 +2230,7 @@ bool Item_func_match::eq(const Item *item, bool binary_cmp) const
return 0;
}
+
double Item_func_match::val()
{
if (ft_handler == NULL)
@@ -2230,14 +2240,13 @@ double Item_func_match::val()
{
if (table->file->ft_handler)
return ft_handler->please->get_relevance(ft_handler);
-
join_key=0;
}
if (key == NO_SUCH_KEY)
{
- String *a=concat->val_str(&value);
- if ((null_value= (a==0)))
+ String *a= concat->val_str(&value);
+ if ((null_value= (a == 0)))
return 0;
return ft_handler->please->find_relevance(ft_handler,
(byte *)a->ptr(), a->length());
@@ -2246,6 +2255,7 @@ double Item_func_match::val()
return ft_handler->please->find_relevance(ft_handler, record, 0);
}
+
/***************************************************************************
System variables
This has to be recoded after we get more than 3 system variables