コード例 #1
0
ファイル: instance.cpp プロジェクト: Thor1Khan/mongo
    static bool receivedQuery(Client& c, DbResponse& dbresponse, Message& m ) {
        bool ok = true;
        MSGID responseTo = m.header()->id;

        DbMessage d(m);
        QueryMessage q(d);
        auto_ptr< Message > resp( new Message() );

        CurOp& op = *(c.curop());

        shared_ptr<AssertionException> ex;

        try {
            if (!NamespaceString(d.getns()).isCommand()) {
                // Auth checking for Commands happens later.
                Status status = cc().getAuthorizationManager()->checkAuthForQuery(d.getns());
                uassert(16550, status.reason(), status.isOK());
            }
            dbresponse.exhaustNS = runQuery(m, q, op, *resp);
            verify( !resp->empty() );
        }
        catch ( SendStaleConfigException& e ){
            ex.reset( new SendStaleConfigException( e.getns(), e.getInfo().msg, e.getVersionReceived(), e.getVersionWanted() ) );
            ok = false;
        }
        catch ( AssertionException& e ) {
            ex.reset( new AssertionException( e.getInfo().msg, e.getCode() ) );
            ok = false;
        }

        if( ex ){

            op.debug().exceptionInfo = ex->getInfo();
            LOGWITHRATELIMIT {
                log() << "assertion " << ex->toString() << " ns:" << q.ns << " query:" <<
                (q.query.valid() ? q.query.toString() : "query object is corrupt") << endl;
                if( q.ntoskip || q.ntoreturn )
                    log() << " ntoskip:" << q.ntoskip << " ntoreturn:" << q.ntoreturn << endl;
            }

            SendStaleConfigException* scex = NULL;
            if ( ex->getCode() == SendStaleConfigCode ) scex = static_cast<SendStaleConfigException*>( ex.get() );

            BSONObjBuilder err;
            ex->getInfo().append( err );
            if( scex ){
                err.append( "ns", scex->getns() );
                scex->getVersionReceived().addToBSON( err, "vReceived" );
                scex->getVersionWanted().addToBSON( err, "vWanted" );
            }
            BSONObj errObj = err.done();

            if( scex ){
                log() << "stale version detected during query over "
                      << q.ns << " : " << errObj << endl;
            }
            else{
                log() << "problem detected during query over "
                      << q.ns << " : " << errObj << endl;
            }

            BufBuilder b;
            b.skip(sizeof(QueryResult));
            b.appendBuf((void*) errObj.objdata(), errObj.objsize());

            // todo: call replyToQuery() from here instead of this!!! see dbmessage.h
            QueryResult * msgdata = (QueryResult *) b.buf();
            b.decouple();
            QueryResult *qr = msgdata;
            qr->_resultFlags() = ResultFlag_ErrSet;
            if( scex ) qr->_resultFlags() |= ResultFlag_ShardConfigStale;
            qr->len = b.len();
            qr->setOperation(opReply);
            qr->cursorId = 0;
            qr->startingFrom = 0;
            qr->nReturned = 1;
            resp.reset( new Message() );
            resp->setData( msgdata, true );

        }

        op.debug().responseLength = resp->header()->dataLen();

        dbresponse.response = resp.release();
        dbresponse.responseTo = responseTo;

        return ok;
    }
コード例 #2
0
ファイル: instance.cpp プロジェクト: Kernald/mongo
    static bool receivedQuery(Client& c, DbResponse& dbresponse, Message& m ) {
        bool ok = true;
        MSGID responseTo = m.header()->id;

        DbMessage d(m);
        QueryMessage q(d);
        auto_ptr< Message > resp( new Message() );

        CurOp& op = *(c.curop());

        shared_ptr<AssertionException> ex;

        try {
            dbresponse.exhaust = runQuery(m, q, op, *resp);
            assert( !resp->empty() );
        }
        catch ( SendStaleConfigException& e ){
            ex.reset( new SendStaleConfigException( e.getns(), e.getInfo().msg ) );
            ok = false;
        }
        catch ( AssertionException& e ) {
            ex.reset( new AssertionException( e.getInfo().msg, e.getCode() ) );
            ok = false;
        }

        if( ex ){

            op.debug().exceptionInfo = ex->getInfo();
            LOGWITHRATELIMIT {
                log() << "assertion " << ex->toString() << " ns:" << q.ns << " query:" <<
                (q.query.valid() ? q.query.toString() : "query object is corrupt") << endl;
                if( q.ntoskip || q.ntoreturn )
                    log() << " ntoskip:" << q.ntoskip << " ntoreturn:" << q.ntoreturn << endl;
            }

            SendStaleConfigException* scex = NULL;
            if ( ex->getCode() == SendStaleConfigCode ) scex = static_cast<SendStaleConfigException*>( ex.get() );

            BSONObjBuilder err;
            ex->getInfo().append( err );
            if( scex ) err.append( "ns", scex->getns() );
            BSONObj errObj = err.done();

            log() << errObj << endl;

            BufBuilder b;
            b.skip(sizeof(QueryResult));
            b.appendBuf((void*) errObj.objdata(), errObj.objsize());

            // todo: call replyToQuery() from here instead of this!!! see dbmessage.h
            QueryResult * msgdata = (QueryResult *) b.buf();
            b.decouple();
            QueryResult *qr = msgdata;
            qr->_resultFlags() = ResultFlag_ErrSet;
            if( scex ) qr->_resultFlags() |= ResultFlag_ShardConfigStale;
            qr->len = b.len();
            qr->setOperation(opReply);
            qr->cursorId = 0;
            qr->startingFrom = 0;
            qr->nReturned = 1;
            resp.reset( new Message() );
            resp->setData( msgdata, true );

        }

        op.debug().responseLength = resp->header()->dataLen();

        dbresponse.response = resp.release();
        dbresponse.responseTo = responseTo;

        return ok;
    }