Package org.apache.tomcat.util.net.NioEndpoint

Examples of org.apache.tomcat.util.net.NioEndpoint.KeyAttachment

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        }
       
        public void register(final NioChannel socket)
        {
            socket.setPoller(this);
            KeyAttachment key = keyCache.poll();
            final KeyAttachment ka = key!=null?key:new KeyAttachment();
            ka.reset(this,socket);
            PollerEvent r = eventCache.poll();
            ka.interestOps(SelectionKey.OP_READ);//this is what OP_REGISTER turns into.
            if ( r==null) r = new PollerEvent(socket,ka,OP_REGISTER);
            else r.reset(socket,ka,OP_REGISTER);
            addEvent(r);
        }
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            addEvent(r);
        }
       
        public void cancelledKey(SelectionKey key, SocketStatus status) {
            try {
                KeyAttachment ka = (KeyAttachment) key.attachment();
                if (ka != null && ka.getComet()) {
                    //the comet event takes care of clean up
                    processSocket(ka.getChannel(), status);
                }else {
                    if (key.isValid()) key.cancel();
                    if (key.channel().isOpen()) key.channel().close();
                    key.attach(null);
                }
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                // Walk through the collection of ready keys and dispatch
                // any active event.
                while (iterator != null && iterator.hasNext()) {
                    SelectionKey sk = (SelectionKey) iterator.next();
                    iterator.remove();
                    KeyAttachment attachment = (KeyAttachment)sk.attachment();
                    try {
                        if ( sk.isValid() && attachment != null ) {
                            attachment.access();
                            sk.attach(attachment);
                            sk.interestOps(0); //this is a must, so that we don't have multiple threads messing with the socket
                            attachment.interestOps(0);
                            NioChannel channel = attachment.getChannel();
                            if (sk.isReadable() || sk.isWritable() ) {
                                if ( attachment.getComet() ) {
                                    if (!processSocket(channel, SocketStatus.OPEN))
                                        processSocket(channel, SocketStatus.DISCONNECT);
                                } else {
                                    boolean close = (!processSocket(channel));
                                    if ( close ) {
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            //timeout
            Set<SelectionKey> keys = selector.keys();
            for (Iterator<SelectionKey> iter = keys.iterator(); iter.hasNext(); ) {
                SelectionKey key = iter.next();
                try {
                    KeyAttachment ka = (KeyAttachment) key.attachment();
                    if ( ka == null ) {
                        cancelledKey(key, SocketStatus.ERROR); //we don't support any keys without attachments
                    } else if ( ka.getError() ) {
                        cancelledKey(key, SocketStatus.DISCONNECT);
                    }else if ((ka.interestOps()&SelectionKey.OP_READ) == SelectionKey.OP_READ) {
                        //only timeout sockets that we are waiting for a read from
                        long delta = now - ka.getLastAccess();
                        long timeout = (ka.getTimeout()==-1)?((long) socketProperties.getSoTimeout()):(ka.getTimeout());
                        boolean isTimedout = delta > timeout;
                        if (isTimedout) {
                            key.interestOps(0);
                            ka.interestOps(0); //avoid duplicate timeout calls
                            cancelledKey(key, SocketStatus.TIMEOUT);
                        } else {
                            long nextTime = now+(timeout-delta);
                            nextExpiration = (nextTime < nextExpiration)?nextTime:nextExpiration;
                        }
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                        if ( handshake == 0 ) {
                            // Process the request from this socket
                            if ((status != null) && (handler.event(socket, status) == Handler.SocketState.CLOSED)) {
                                // Close socket and pool
                                try {
                                    KeyAttachment att = (KeyAttachment)socket.getAttachment(true);
                                    try {socket.close();}catch (Exception ignore){}
                                    if ( socket.isOpen() ) socket.close(true);
                                    key.cancel();
                                    key.attach(null);
                                    nioChannels.offer(socket);
                                    if ( att!=null ) keyCache.offer(att);
                                }catch ( Exception x ) {
                                    log.error("",x);
                                }
                            } else if ((status == null) && (handler.process(socket) == Handler.SocketState.CLOSED)) {
                                // Close socket and pool
                                try {
                                    KeyAttachment att = (KeyAttachment)socket.getAttachment(true);
                                    try {socket.close();}catch (Exception ignore){}
                                    if ( socket.isOpen() ) socket.close(true);
                                    key.cancel();
                                    key.attach(null);
                                    nioChannels.offer(socket);
                                    if ( att!=null ) keyCache.offer(att);
                                }catch ( Exception x ) {
                                    log.error("",x);
                                }
                            }
                        } else if (handshake == -1 ) {
                            socket.getPoller().cancelledKey(key,SocketStatus.DISCONNECT);
                            try {socket.close(true);}catch (IOException ignore){}
                            nioChannels.offer(socket);
                        } else {
                            final SelectionKey fk = key;
                            final int intops = handshake;
                            final KeyAttachment ka = (KeyAttachment)fk.attachment();
                            ka.getPoller().add(socket,intops);
                        }
                    }
                } finally {
                    //dereference socket to let GC do its job
                    socket = null;
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            }

        } else if (actionCode == ActionCode.ASYNC_SETTIMEOUT) {
            if (param == null) return;
            long timeout = ((Long)param).longValue();
            final KeyAttachment ka =
                    (KeyAttachment)socketWrapper.getSocket().getAttachment(false);
            ka.setTimeout(timeout);

        } else if (actionCode == ActionCode.ASYNC_DISPATCH) {
            if (asyncStateMachine.asyncDispatch()) {
                ((NioEndpoint)endpoint).processSocket(this.socketWrapper.getSocket(),
                        SocketStatus.OPEN_READ, true);
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    @Override
    protected void resetTimeouts() {
        // The NIO connector uses the timeout configured on the wrapper in the
        // poller. Therefore, it needs to be reset once asycn processing has
        // finished.
        final KeyAttachment attach =
                (KeyAttachment)socketWrapper.getSocket().getAttachment(false);
        if (!error && attach != null &&
                asyncStateMachine.isAsyncDispatching()) {
            long soTimeout = endpoint.getSoTimeout();

            //reset the timeout
            if (keepAliveTimeout > 0) {
                attach.setTimeout(keepAliveTimeout);
            } else {
                attach.setTimeout(soTimeout);
            }
        }

    }
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        writeBuffer.put(src, offset, length);
       
        writeBuffer.flip();
       
        KeyAttachment att =
                (KeyAttachment) socketWrapper.getSocket().getAttachment(false);
        if ( att == null ) throw new IOException("Key must be cancelled");
        long writeTimeout = att.getWriteTimeout();
        Selector selector = null;
        try {
            selector = pool.get();
        } catch ( IOException x ) {
            //ignore
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                        SocketStatus.OPEN, false);
            }
        } else if (actionCode == ActionCode.ASYNC_SETTIMEOUT) {
            if (param == null) return;
            long timeout = ((Long)param).longValue();
            final KeyAttachment ka = (KeyAttachment)socket.getAttachment(false);
            if (keepAliveTimeout > 0) {
                ka.setTimeout(timeout);
            }
        } else if (actionCode == ActionCode.ASYNC_DISPATCH) {
            if (asyncStateMachine.asyncDispatch()) {
                ((NioEndpoint)endpoint).processSocket(this.socket,
                        SocketStatus.OPEN, true);
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                    // Walk through the collection of ready keys and dispatch
                    // any active event.
                    while (run && iterator != null && iterator.hasNext()) {
                        SelectionKey sk = iterator.next();
                        KeyAttachment attachment = (KeyAttachment)sk.attachment();
                        try {
                            attachment.access();
                            iterator.remove();
                            sk.interestOps(sk.interestOps() & (~sk.readyOps()));
                            if ( sk.isReadable() ) {
                                countDown(attachment.getReadLatch());
                            }
                            if (sk.isWritable()) {
                                countDown(attachment.getWriteLatch());
                            }
                        }catch (CancelledKeyException ckx) {
                            sk.cancel();
                            countDown(attachment.getReadLatch());
                            countDown(attachment.getWriteLatch());
                        }
                    }//while
                }catch ( Throwable t ) {
                    log.error("",t);
                }
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