Method delete_blob_id

src/jrd/blb.cpp:2268–2304

void blb::delete_blob_id(thread_db* tdbb, const bid* blob_id, ULONG prior_page, jrd_rel* relation)
{
/**************************************
 *
 *      d e l e t e _ b l o b _ i d
 *
 **************************************
 *
 * Functional description
 *      Delete an existing blob for purpose of garbage collection.
 *
 **************************************/
	SET_TDBB(tdbb);
	Jrd::Attachment* attachment = tdbb->getAttachment();
	Database* dbb = tdbb->getDatabase();
	CHECK_DBB(dbb);

	// If the blob is null, don't bother to delete it.  Reasonable?

	if (blob_id->isEmpty())
		return;

	if (blob_id->bid_internal.bid_relation_id != relation->rel_id)
		CORRUPT(200);			// msg 200 invalid blob id

	// Fetch blob

	blb* blob = allocate_blob(tdbb, attachment->getSysTransaction());
	blob->blb_relation = relation;
	blob->blb_pg_space_id = relation->getPages(tdbb)->rel_pg_space_id;
	prior_page = DPM_get_blob(tdbb, blob, blob_id->get_permanent_number(), true, prior_page);

	if (!(blob->blb_flags & BLB_damaged))
		blob->delete_blob(tdbb, prior_page);

	blob->destroy(true);
}


static ArrayField* find_array(jrd_tra* transaction, const bid* blob_id)