/*
* disk_update_instance_using_mobj - updates an object that had previously
* been reserved with the acutal contents.
* return: NO_ERROR if successful, error code otherwise
* classop(in): class object
* classobj(in): class memory object
* obj(in): object memory.
* oid(in): oid of the destination
*/
int
disk_update_instance_using_mobj (MOP classop, MOBJ classobj,
MOBJ obj, OID * oid)
{
int error = NO_ERROR;
HFID *hfid;
bool has_indexes = false;
volatile int newsize = 0;
bool oldflag;
TF_STATUS tf_status = TF_SUCCESS;
Diskrec->length = 0;
/*
* tf_mem_to_disk() is used to get an estimate of the disk space requirements
* for the object. When dealing with collections the estimate returned is
* not always a good one, hence we need to enclose this block in a loop
* increasing the space by increments of DB_PAGESIZE until we hit the correct
* space requirement.
*/
while ((tf_status =
tf_mem_to_disk (classop, classobj, obj, Diskrec,
&has_indexes)) == TF_OUT_OF_SPACE)
{
/* make the record larger */
if (newsize)
{
newsize += DB_PAGESIZE;
}
else
{
newsize = -Diskrec->length + DB_PAGESIZE;
}
free_recdes (Diskrec);
Diskrec = alloc_recdes (newsize);
if (Diskrec == NULL)
{
error = er_errid ();
break;
}
}
if (tf_status != TF_SUCCESS)
{
error = ER_LDR_CANT_TRANSFORM;
er_set (ER_ERROR_SEVERITY, ARG_FILE_LINE, error, 0);
}
if (error == NO_ERROR && Diskrec != NULL)
{
hfid = get_class_heap (classop, (SM_CLASS *) classop->object);
if (hfid == NULL)
{
error = er_errid ();
}
else if (heap_update (NULL, hfid, oid, Diskrec, &oldflag, NULL) != oid)
{
error = er_errid ();
}
else
{
if (oldflag)
{
fprintf (stdout, msgcat_message (MSGCAT_CATALOG_UTILS,
MSGCAT_UTIL_SET_LOADDB,
LOADDB_MSG_UPDATE_WARNING));
}
else if (has_indexes)
{
error = update_indexes (WS_OID (classop), oid, Diskrec);
}
}
}
return (error);
}
/*
* disk_insert_instance_using_mobj - inserts a new object in the database
* given a memory object and class object
* return: NO_ERROR if successful, error code otherwise
* classop(in): class object
* classobj(in): class memory object
* obj(in): object memory.
* oid(out): oid of the destination
*/
int
disk_insert_instance_using_mobj (MOP classop, MOBJ classobj, MOBJ obj, OID * oid)
{
int error = NO_ERROR;
HFID *hfid;
volatile int newsize = 0;
bool has_indexes;
TF_STATUS tf_status = TF_SUCCESS;
Diskrec->length = 0;
/*
* tf_mem_to_disk() is used to get an estimate of the disk space requirements
* for the object. When dealing with collections the estimate returned is
* not always a good one, hence we need to enclose this block in a loop
* increasing the space by increments of DB_PAGESIZE until we hit the correct
* space requirement.
*/
while ((tf_status = tf_mem_to_disk (classop, classobj, obj, Diskrec, &has_indexes)) == TF_OUT_OF_SPACE)
{
/* make the record larger */
if (newsize)
{
newsize += DB_PAGESIZE;
}
else
{
newsize = -Diskrec->length + DB_PAGESIZE;
}
free_recdes (Diskrec);
Diskrec = alloc_recdes (newsize);
if (Diskrec == NULL)
{
assert (er_errid () != NO_ERROR);
error = er_errid ();
break;
}
}
if (tf_status != TF_SUCCESS)
{
error = ER_LDR_CANT_TRANSFORM;
er_set (ER_ERROR_SEVERITY, ARG_FILE_LINE, error, 0);
}
if (error == NO_ERROR && Diskrec != NULL)
{
hfid = get_class_heap (classop, (SM_CLASS *) classop->object);
if (hfid == NULL)
{
assert (er_errid () != NO_ERROR);
error = er_errid ();
}
else
{
HEAP_OPERATION_CONTEXT context;
/* set up context */
heap_create_insert_context (&context, hfid, WS_OID (classop), Diskrec, NULL);
/* oid is set here as a side effect */
if (heap_insert_logical (NULL, &context) != NO_ERROR)
{
assert (er_errid () != NO_ERROR);
error = er_errid ();
}
else if (has_indexes)
{
COPY_OID (oid, &context.res_oid);
error = update_indexes (WS_OID (classop), oid, Diskrec);
}
else
{
COPY_OID (oid, &context.res_oid);
}
}
}
return (error);
}
