database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-08-08 11:22:35 +03:00
Code Activity

merge on pull

Browse Source
This commit is contained in:
monty@mysql.com
2004-11-09 04:06:44 +02:00
parent a3f4bd28ac 2bba55b57f
commit 87af3d9113
245 changed files with 10307 additions and 17022 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
sql/sql_class.h
View File

@@ -515,7 +515,8 @@ public:
itself to the list on creation (see Item::Item() for details))
*/
Item *free_list;
MEM_ROOT mem_root;
MEM_ROOT main_mem_root;
MEM_ROOT *mem_root; // Pointer to current memroot
#ifndef DBUG_OFF
bool backup_arena;
#endif
@@ -557,24 +558,24 @@ public:
{ return state == PREPARED || state == EXECUTED; }
inline bool is_conventional() const
{ return state == CONVENTIONAL_EXECUTION; }
inline gptr alloc(unsigned int size) { return alloc_root(&mem_root,size); }
inline gptr alloc(unsigned int size) { return alloc_root(mem_root,size); }
inline gptr calloc(unsigned int size)
{
gptr ptr;
if ((ptr=alloc_root(&mem_root,size)))
if ((ptr=alloc_root(mem_root,size)))
bzero((char*) ptr,size);
return ptr;
}
inline char *strdup(const char *str)
{ return strdup_root(&mem_root,str); }
{ return strdup_root(mem_root,str); }
inline char *strmake(const char *str, uint size)
{ return strmake_root(&mem_root,str,size); }
{ return strmake_root(mem_root,str,size); }
inline char *memdup(const char *str, uint size)
{ return memdup_root(&mem_root,str,size); }
{ return memdup_root(mem_root,str,size); }
inline char *memdup_w_gap(const char *str, uint size, uint gap)
{
gptr ptr;
if ((ptr=alloc_root(&mem_root,size+gap)))
if ((ptr=alloc_root(mem_root,size+gap)))
memcpy(ptr,str,size);
return ptr;
}
@@ -1171,11 +1172,26 @@ public:
inline CHARSET_INFO *charset() { return variables.character_set_client; }
void update_charset();
inline Item_arena *change_arena_if_needed(Item_arena *backup)
{
/*
use new arena if we are in a prepared statements and we have not
already changed to use this arena.
*/
if (!current_arena->is_conventional() &&
mem_root != &current_arena->main_mem_root)
{
set_n_backup_item_arena(current_arena, backup);
return current_arena;
}
return 0;
}
void change_item_tree(Item **place, Item *new_value)
{
/* TODO: check for OOM condition here */
if (!current_arena->is_conventional())
nocheck_register_item_tree_change(place, *place, &mem_root);
nocheck_register_item_tree_change(place, *place, mem_root);
*place= new_value;
}
void nocheck_register_item_tree_change(Item **place, Item *old_value,