Function VIO_gc_record

src/jrd/vio.cpp:2875–2920

Record* VIO_gc_record(thread_db* tdbb, jrd_rel* relation)
{
/**************************************
 *
 *	V I O _ g c _ r e c o r d
 *
 **************************************
 *
 * Functional description
 *	Allocate from a relation's vector of garbage
 *	collect record blocks. Their scope is strictly
 *	limited to temporary usage and should never be
 *	copied to permanent record parameter blocks.
 *
 **************************************/
	SET_TDBB(tdbb);
	Database* dbb = tdbb->getDatabase();
	CHECK_DBB(dbb);

	const Format* const format = MET_current(tdbb, relation);

	// Set the active flag on an inactive garbage collect record block and return it

	for (Record** iter = relation->rel_gc_records.begin();
		 iter != relation->rel_gc_records.end();
		 ++iter)
	{
		Record* const record = *iter;
		fb_assert(record);

		if (!record->isTempActive())
		{
			// initialize record for reuse
			record->reset(format);
			record->setTempActive();
			return record;
		}
	}

	// Allocate a garbage collect record block if all are active

	Record* const record = FB_NEW_POOL(*relation->rel_pool)
		Record(*relation->rel_pool, format, true);
	relation->rel_gc_records.add(record);
	return record;
}


bool VIO_get(thread_db* tdbb, record_param* rpb, jrd_tra* transaction, MemoryPool* pool)