Commit d43c15b0 authored by unknown's avatar unknown

Doxygenization of comments.

parent 39062b7e
...@@ -14,11 +14,15 @@ ...@@ -14,11 +14,15 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* /**
Functions to copy data to or from fields @file
This could be done with a single short function but opencoding this
gives much more speed. @brief
*/ Functions to copy data to or from fields
This could be done with a single short function but opencoding this
gives much more speed.
*/
#include "mysql_priv.h" #include "mysql_priv.h"
#include <m_ctype.h> #include <m_ctype.h>
...@@ -129,22 +133,21 @@ set_field_to_null(Field *field) ...@@ -129,22 +133,21 @@ set_field_to_null(Field *field)
} }
/* /**
Set field to NULL or TIMESTAMP or to next auto_increment number Set field to NULL or TIMESTAMP or to next auto_increment number.
SYNOPSIS @param field Field to update
set_field_to_null_with_conversions() @param no_conversions Set to 1 if we should return 1 if field can't
field Field to update take null values.
no_conversion Set to 1 if we should return 1 if field can't If set to 0 we will do store the 'default value'
take null values. if the field is a special field. If not we will
If set to 0 we will do store the 'default value' give an error.
if the field is a special field. If not we will
give an error. @retval
0 Field could take 0 or an automatic conversion was used
RETURN VALUES @retval
0 Field could take 0 or an automatic conversion was used -1 Field could not take NULL and no conversion was used.
-1 Field could not take NULL and no conversion was used. If no_conversion was not set, an error message is printed
If no_conversion was not set, an error message is printed
*/ */
int int
...@@ -283,7 +286,7 @@ static void do_conv_blob(Copy_field *copy) ...@@ -283,7 +286,7 @@ static void do_conv_blob(Copy_field *copy)
copy->tmp.charset()); copy->tmp.charset());
} }
/* Save blob in copy->tmp for GROUP BY */ /** Save blob in copy->tmp for GROUP BY. */
static void do_save_blob(Copy_field *copy) static void do_save_blob(Copy_field *copy)
{ {
...@@ -352,9 +355,9 @@ static void do_field_decimal(Copy_field *copy) ...@@ -352,9 +355,9 @@ static void do_field_decimal(Copy_field *copy)
} }
/* /**
string copy for single byte characters set when to string is shorter than string copy for single byte characters set when to string is shorter than
from string from string.
*/ */
static void do_cut_string(Copy_field *copy) static void do_cut_string(Copy_field *copy)
...@@ -374,9 +377,9 @@ static void do_cut_string(Copy_field *copy) ...@@ -374,9 +377,9 @@ static void do_cut_string(Copy_field *copy)
} }
/* /**
string copy for multi byte characters set when to string is shorter than string copy for multi byte characters set when to string is shorter than
from string from string.
*/ */
static void do_cut_string_complex(Copy_field *copy) static void do_cut_string_complex(Copy_field *copy)
...@@ -507,7 +510,7 @@ static void do_varstring2_mb(Copy_field *copy) ...@@ -507,7 +510,7 @@ static void do_varstring2_mb(Copy_field *copy)
** The different functions that fills in a Copy_field class ** The different functions that fills in a Copy_field class
***************************************************************************/ ***************************************************************************/
/* /**
copy of field to maybe null string. copy of field to maybe null string.
If field is null then the all bytes are set to 0. If field is null then the all bytes are set to 0.
if field is not null then the first byte is set to 1 and the rest of the if field is not null then the first byte is set to 1 and the rest of the
...@@ -748,7 +751,7 @@ Copy_field::get_copy_func(Field *to,Field *from) ...@@ -748,7 +751,7 @@ Copy_field::get_copy_func(Field *to,Field *from)
} }
/* Simple quick field convert that is called on insert */ /** Simple quick field convert that is called on insert. */
int field_conv(Field *to,Field *from) int field_conv(Field *to,Field *from)
{ {
......
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...@@ -13,8 +13,11 @@ ...@@ -13,8 +13,11 @@
along with this program; if not, write to the Free Software along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* /**
@file
@details
@verbatim
The idea of presented algorithm see in The idea of presented algorithm see in
"The Art of Computer Programming" by Donald E. Knuth "The Art of Computer Programming" by Donald E. Knuth
Volume 3 "Sorting and searching" Volume 3 "Sorting and searching"
...@@ -63,12 +66,14 @@ for optimization, link is the 16-bit index in 'symbols' or 'sql_functions' ...@@ -63,12 +66,14 @@ for optimization, link is the 16-bit index in 'symbols' or 'sql_functions'
or search-array.. or search-array..
So, we can read full search-structure as 32-bit word So, we can read full search-structure as 32-bit word
@endverbatim
@todo
use instead to_upper_lex, special array
(substitute chars) without skip codes..
@todo
try use reverse order of comparing..
TODO:
1. use instead to_upper_lex, special array
(substitute chars) without skip codes..
2. try use reverse order of comparing..
*/ */
#define NO_YACC_SYMBOLS #define NO_YACC_SYMBOLS
......
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...@@ -14,9 +14,14 @@ ...@@ -14,9 +14,14 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* /**
Get hostname for an IP. Hostnames are checked with reverse name lookup and @file
checked that they doesn't resemble an ip.
@brief
Get hostname for an IP.
Hostnames are checked with reverse name lookup and
checked that they doesn't resemble an ip.
*/ */
#include "mysql_priv.h" #include "mysql_priv.h"
......
...@@ -14,7 +14,12 @@ ...@@ -14,7 +14,12 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Init and dummy functions for interface with unireg */ /**
@file
@brief
Init and dummy functions for interface with unireg
*/
#include "mysql_priv.h" #include "mysql_priv.h"
#include <m_ctype.h> #include <m_ctype.h>
......
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...@@ -14,12 +14,17 @@ ...@@ -14,12 +14,17 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Buffers to save and compare item values */ /**
@file
@brief
Buffers to save and compare item values
*/
#include "mysql_priv.h" #include "mysql_priv.h"
/* /**
** Create right type of Cached_item for an item Create right type of Cached_item for an item.
*/ */
Cached_item *new_Cached_item(THD *thd, Item *item) Cached_item *new_Cached_item(THD *thd, Item *item)
...@@ -45,9 +50,11 @@ Cached_item *new_Cached_item(THD *thd, Item *item) ...@@ -45,9 +50,11 @@ Cached_item *new_Cached_item(THD *thd, Item *item)
Cached_item::~Cached_item() {} Cached_item::~Cached_item() {}
/* /**
** Compare with old value and replace value with new value Compare with old value and replace value with new value.
** Return true if values have changed
@return
Return true if values have changed
*/ */
Cached_item_str::Cached_item_str(THD *thd, Item *arg) Cached_item_str::Cached_item_str(THD *thd, Item *arg)
......
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...@@ -13,7 +13,12 @@ ...@@ -13,7 +13,12 @@
along with this program; if not, write to the Free Software along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Functions to create an item. Used by sql_yacc.yy */ /**
@file
@brief
Functions to create an item. Used by sql_yac.yy
*/
#include "mysql_priv.h" #include "mysql_priv.h"
#include "item_create.h" #include "item_create.h"
......
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...@@ -14,7 +14,12 @@ ...@@ -14,7 +14,12 @@
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* This file defines all spatial functions */ /**
@file
@brief
This file defines all spatial functions
*/
#ifdef USE_PRAGMA_IMPLEMENTATION #ifdef USE_PRAGMA_IMPLEMENTATION
#pragma implementation // gcc: Class implementation #pragma implementation // gcc: Class implementation
...@@ -360,7 +365,7 @@ String *Item_func_point::val_str(String *str) ...@@ -360,7 +365,7 @@ String *Item_func_point::val_str(String *str)
} }
/* /**
Concatenates various items into various collections Concatenates various items into various collections
with checkings for valid wkb type of items. with checkings for valid wkb type of items.
For example, MultiPoint can be a collection of Points only. For example, MultiPoint can be a collection of Points only.
...@@ -542,6 +547,10 @@ longlong Item_func_isempty::val_int() ...@@ -542,6 +547,10 @@ longlong Item_func_isempty::val_int()
} }
/**
@todo
Ramil or Holyfoot, add real IsSimple calculation
*/
longlong Item_func_issimple::val_int() longlong Item_func_issimple::val_int()
{ {
DBUG_ASSERT(fixed == 1); DBUG_ASSERT(fixed == 1);
......
...@@ -15,13 +15,18 @@ ...@@ -15,13 +15,18 @@
#include "mysql_priv.h" #include "mysql_priv.h"
/* /**
Row items used for comparing rows and IN operations on rows: Row items used for comparing rows and IN operations on rows:
@verbatim
(a, b, c) > (10, 10, 30) (a, b, c) > (10, 10, 30)
(a, b, c) = (select c, d, e, from t1 where x=12) (a, b, c) = (select c, d, e, from t1 where x=12)
(a, b, c) IN ((1,2,2), (3,4,5), (6,7,8) (a, b, c) IN ((1,2,2), (3,4,5), (6,7,8)
(a, b, c) IN (select c, d, e, from t1) (a, b, c) IN (select c, d, e, from t1)
@endverbatim
@todo
think placing 2-3 component items in item (as it done for function
*/ */
Item_row::Item_row(List<Item> &arg): Item_row::Item_row(List<Item> &arg):
......
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...@@ -13,8 +13,11 @@ ...@@ -13,8 +13,11 @@
along with this program; if not, write to the Free Software along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* /**
Cashing of files with only does (sequential) read or writes of fixed- @file
@details
Caching of files with only does (sequential) read or writes of fixed-
length records. A read isn't allowed to go over file-length. A read is ok length records. A read isn't allowed to go over file-length. A read is ok
if it ends at file-length and next read can try to read after file-length if it ends at file-length and next read can try to read after file-length
(and get a EOF-error). (and get a EOF-error).
...@@ -34,11 +37,15 @@ ...@@ -34,11 +37,15 @@
extern "C" { extern "C" {
/* /**
** Read buffered from the net. Read buffered from the net.
** Returns 1 if can't read requested characters
** Returns 0 if record read @retval
*/ 1 if can't read requested characters
@retval
0 if record read
*/
int _my_b_net_read(register IO_CACHE *info, uchar *Buffer, int _my_b_net_read(register IO_CACHE *info, uchar *Buffer,
size_t Count __attribute__((unused))) size_t Count __attribute__((unused)))
......
...@@ -18,17 +18,15 @@ ...@@ -18,17 +18,15 @@
#ifndef MYSQL_CLIENT #ifndef MYSQL_CLIENT
/* /**
report result of decimal operation report result of decimal operation.
SYNOPSIS @param result decimal library return code (E_DEC_* see include/decimal.h)
decimal_operation_results()
result decimal library return code (E_DEC_* see include/decimal.h)
TODO @todo
Fix error messages Fix error messages
RETURN @return
result result
*/ */
......
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