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Added GWBUF type GWBUF_TYPE_SINGLE_STMT to indicate that buffer only includes single complete stmt. Added macro for checking the flag and changed existing routines as necessary.

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VilhoRaatikka
2014-06-24 21:51:54 +03:00
parent 619aeb4afa
commit 442ac7fefb
2 changed files with 29 additions and 27 deletions
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43
server/core/buffer.c
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@ -185,30 +185,28 @@ GWBUF *gwbuf_clone_transform(
goto return_clonebuf;
}
switch (src_type)
if (GWBUF_IS_TYPE_MYSQL(head))
{
case GWBUF_TYPE_MYSQL:
if (targettype == GWBUF_TYPE_PLAINSQL)
{
/** Crete reference to string part of buffer */
clonebuf = gwbuf_clone_portion(
head,
5,
GWBUF_LENGTH(head)-5);
ss_dassert(clonebuf != NULL);
/** Overwrite the type with new format */
clonebuf->gwbuf_type = targettype;
}
else
{
clonebuf = NULL;
}
break;
default:
if (GWBUF_TYPE_PLAINSQL == targettype)
{
/** Crete reference to string part of buffer */
clonebuf = gwbuf_clone_portion(
head,
5,
GWBUF_LENGTH(head)-5);
ss_dassert(clonebuf != NULL);
/** Overwrite the type with new format */
gwbuf_set_type(clonebuf, targettype);
}
else
{
clonebuf = NULL;
break;
} /*< switch (src_type) */
}
}
else
{
clonebuf = NULL;
}
return_clonebuf:
return clonebuf;
@ -308,6 +306,7 @@ bool gwbuf_set_type(
case GWBUF_TYPE_MYSQL:
case GWBUF_TYPE_PLAINSQL:
case GWBUF_TYPE_UNDEFINED:
case GWBUF_TYPE_SINGLE_STMT: /*< buffer contains one stmt */
buf->gwbuf_type |= type;
succp = true;
break;