Method attach

src/jrd/Mapping.cpp:174–220

}

bool Mapping::DbHandle::attach(const char* aliasDb, ICryptKeyCallback* cryptCb)
{
	FbLocalStatus st;
	bool down = false;		// true if on attach db is shutdown

	if (hasData())
	{
		MAP_DEBUG(fprintf(stderr, "Already attached %s\n", aliasDb));
		return down;
	}

	DispatcherPtr prov;
	if (cryptCb)
	{
		prov->setDbCryptCallback(&st, cryptCb);
		check("IProvider::setDbCryptCallback", &st);
	}

	ClumpletWriter embeddedSysdba(ClumpletWriter::dpbList, MAX_DPB_SIZE);
	embeddedSysdba.insertString(isc_dpb_user_name, DBA_USER_NAME, fb_strlen(DBA_USER_NAME));
	embeddedSysdba.insertByte(isc_dpb_sec_attach, TRUE);
	embeddedSysdba.insertString(isc_dpb_config, ParsedList::getNonLoopbackProviders(aliasDb));
	embeddedSysdba.insertByte(isc_dpb_map_attach, TRUE);
	embeddedSysdba.insertByte(isc_dpb_no_db_triggers, TRUE);

	MAP_DEBUG(fprintf(stderr, "Attach %s\n", aliasDb));
	IAttachment* att = prov->attachDatabase(&st, aliasDb,
		embeddedSysdba.getBufferLength(), embeddedSysdba.getBuffer());

	if (st->getState() & IStatus::STATE_ERRORS)
	{
		const ISC_STATUS* s = st->getErrors();
		MAP_DEBUG(isc_print_status(s));
		bool missing = fb_utils::containsErrorCode(s, isc_io_error);
		down = fb_utils::containsErrorCode(s, isc_shutdown);
		if (!(missing || down))
			check("IProvider::attachDatabase", &st);

		// down/missing DB is not a reason to fail mapping
	}
	else
		assignRefNoIncr(att);

	MAP_DEBUG(fprintf(stderr, "Att=%p\n", att));

	return down;
}


FB_SIZE_T Mapping::Map::hash(const Map& value, FB_SIZE_T hashSize)