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Fix of UNION code

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Added heap_delete_table
Added HA_EXTRA_PREPARE_FOR_DELETE
Added and use my_dup() for faster open of tables.
Removed not working no-mix-table-type
This commit is contained in:
monty@hundin.mysql.fi
2001-08-19 14:43:51 +03:00
parent 1e1a1ec064
commit a1be2a894f
47 changed files with 164 additions and 82 deletions
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26
mysys/my_alloc.c
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@ -55,6 +55,7 @@ gptr alloc_root(MEM_ROOT *mem_root,unsigned int Size)
return((gptr) 0); /* purecov: inspected */
}
next->next=mem_root->used;
next->size= Size;
mem_root->used=next;
return (gptr) (((char*) next)+ALIGN_SIZE(sizeof(USED_MEM)));
#else
@ -166,6 +167,31 @@ void free_root(MEM_ROOT *root, myf MyFlags)
DBUG_VOID_RETURN;
}
/*
Find block that contains an object and set the pre_alloc to it
*/
void set_prealloc_root(MEM_ROOT *root, char *ptr)
{
USED_MEM *next;
for (next=root->used; next ; next=next->next)
{
if ((char*) next <= ptr && (char*) next + next->size > ptr)
{
root->pre_alloc=next;
return;
}
}
for (next=root->free ; next ; next=next->next)
{
if ((char*) next <= ptr && (char*) next + next->size > ptr)
{
root->pre_alloc=next;
return;
}
}
}
char *strdup_root(MEM_ROOT *root,const char *str)
{