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WL 1682: Bitvector for updated/read fields in handler interface

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Fixed clear issues of bitvector and memory allocation issues
This commit is contained in:
mronstrom@mysql.com
2005-05-07 10:00:25 +02:00
parent e39f328e44
commit b4ab00df62
11 changed files with 29 additions and 21 deletions
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10
sql/handler.h
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@ -443,6 +443,8 @@ class handler :public Sql_alloc
virtual int rnd_init(bool scan) =0;
virtual int rnd_end() { return 0; }
private:
virtual int reset() { return extra(HA_EXTRA_RESET); }
public:
byte *ref; /* Pointer to current row */
byte *dupp_ref; /* Pointer to dupp row */
@ -562,6 +564,13 @@ public:
inited=NONE;
DBUG_RETURN(rnd_end());
}
int ha_reset()
{
DBUG_ENTER("ha_reset");
ha_clear_all_set();
DBUG_RETURN(reset());
}
/* this is necessary in many places, e.g. in HANDLER command */
int ha_index_or_rnd_end()
{
@ -664,7 +673,6 @@ public:
{ return 0; }
virtual int extra_opt(enum ha_extra_function operation, ulong cache_size)
{ return extra(operation); }
virtual int reset() { return extra(HA_EXTRA_RESET); }
virtual int external_lock(THD *thd, int lock_type) { return 0; }
virtual void unlock_row() {}
virtual int start_stmt(THD *thd) {return 0;}