Function prepare_tra

src/jrd/jrd.cpp:7671–7697

static void prepare_tra(thread_db* tdbb, jrd_tra* transaction, USHORT length, const UCHAR* msg)
{
/**************************************
 *
 *	p r e p a r e
 *
 **************************************
 *
 * Functional description
 *	Attempt to prepare a transaction.
 *
 **************************************/
	SET_TDBB(tdbb);

	if (transaction->tra_in_use)
		status_exception::raise(Arg::Gds(isc_transaction_in_use));

	if (!(transaction->tra_flags & TRA_prepared))
	{
		// run ON TRANSACTION COMMIT triggers
		run_commit_triggers(tdbb, transaction);
	}

	validateHandle(tdbb, transaction->tra_attachment);
	tdbb->setTransaction(transaction);
	TRA_prepare(tdbb, transaction, length, msg);
}


void release_attachment(thread_db* tdbb, Jrd::Attachment* attachment, XThreadEnsureUnlock* dropGuard)