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

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

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        if ( key == null ) throw new IOException("Key no longer registered");
        KeyReference reference = keyReferenceStack.pop();
        if (reference == null) {
            reference = new KeyReference();
        }
        KeyAttachment att = (KeyAttachment) key.attachment();
        int read = 0;
        boolean timedout = false;
        int keycount = 1; //assume we can read
        long time = System.currentTimeMillis(); //start the timeout timer
        try {
            while(!timedout) {
                if (keycount > 0) { //only read if we were registered for a read
                    read = socket.read(buf);
                    if (read == -1)
                        throw new EOFException();
                    if (read > 0)
                        break;
                }
                try {
                    if ( att.getReadLatch()==null || att.getReadLatch().getCount()==0) att.startReadLatch(1);
                    poller.add(att,SelectionKey.OP_READ, reference);
                    if (readTimeout < 0) {
                        att.awaitReadLatch(Long.MAX_VALUE, TimeUnit.MILLISECONDS);
                    } else {
                        att.awaitReadLatch(readTimeout, TimeUnit.MILLISECONDS);
                    }
                } catch (InterruptedException ignore) {
                    // Ignore
                }
                if ( att.getReadLatch()!=null && att.getReadLatch().getCount()> 0) {
                    //we got interrupted, but we haven't received notification from the poller.
                    keycount = 0;
                }else {
                    //latch countdown has happened
                    keycount = 1;
                    att.resetReadLatch();
                }
                if (readTimeout >= 0 && (keycount == 0))
                    timedout = (System.currentTimeMillis() - time) >= readTimeout;
            } //while
            if (timedout)
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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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                        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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     */
    public int write(ByteBuffer buf, NioChannel socket, long writeTimeout,MutableInteger lastWrite) throws IOException {
        SelectionKey key = socket.getIOChannel().keyFor(socket.getPoller().getSelector());
        if ( key == null ) throw new IOException("Key no longer registered");
        KeyReference reference = new KeyReference();
        KeyAttachment att = (KeyAttachment) key.attachment();
        int written = 0;
        boolean timedout = false;
        int keycount = 1; //assume we can write
        long time = System.currentTimeMillis(); //start the timeout timer
        try {
            while ( (!timedout) && buf.hasRemaining()) {
                if (keycount > 0) { //only write if we were registered for a write
                    int cnt = socket.write(buf); //write the data
                    lastWrite.set(cnt);
                    if (cnt == -1)
                        throw new EOFException();
                    written += cnt;
                    if (cnt > 0) {
                        time = System.currentTimeMillis(); //reset our timeout timer
                        continue; //we successfully wrote, try again without a selector
                    }
                }
                try {
                    if ( att.getWriteLatch()==null || att.getWriteLatch().getCount()==0) att.startWriteLatch(1);
                    poller.add(att,SelectionKey.OP_WRITE,reference);
                    att.awaitWriteLatch(writeTimeout,TimeUnit.MILLISECONDS);
                }catch (InterruptedException ignore) {
                    Thread.interrupted();
                }
                if ( att.getWriteLatch()!=null && att.getWriteLatch().getCount()> 0) {
                    //we got interrupted, but we haven't received notification from the poller.
                    keycount = 0;
                }else {
                    //latch countdown has happened
                    keycount = 1;
                    att.resetWriteLatch();
                }

                if (writeTimeout > 0 && (keycount == 0))
                    timedout = (System.currentTimeMillis() - time) >= writeTimeout;
            } //while
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     */
    public int read(ByteBuffer buf, NioChannel socket, long readTimeout) throws IOException {
        SelectionKey key = socket.getIOChannel().keyFor(socket.getPoller().getSelector());
        if ( key == null ) throw new IOException("Key no longer registered");
        KeyReference reference = new KeyReference();
        KeyAttachment att = (KeyAttachment) key.attachment();
        int read = 0;
        boolean timedout = false;
        int keycount = 1; //assume we can write
        long time = System.currentTimeMillis(); //start the timeout timer
        try {
            while ( (!timedout) && read == 0) {
                if (keycount > 0) { //only read if we were registered for a read
                    int cnt = socket.read(buf);
                    if (cnt == -1)
                        throw new EOFException();
                    read += cnt;
                    if (cnt > 0)
                        break;
                }
                try {
                    if ( att.getReadLatch()==null || att.getReadLatch().getCount()==0) att.startReadLatch(1);
                    poller.add(att,SelectionKey.OP_READ, reference);
                    att.awaitReadLatch(readTimeout,TimeUnit.MILLISECONDS);
                }catch (InterruptedException ignore) {
                    Thread.interrupted();
                }
                if ( att.getReadLatch()!=null && att.getReadLatch().getCount()> 0) {
                    //we got interrupted, but we haven't received notification from the poller.
                    keycount = 0;
                }else {
                    //latch countdown has happened
                    keycount = 1;
                    att.resetReadLatch();
                }
                if (readTimeout > 0 && (keycount == 0))
                    timedout = (System.currentTimeMillis() - time) >= readTimeout;
            } //while
            if (timedout)
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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) {
                            if (sk!=null) sk.cancel();
                            countDown(attachment.getReadLatch());
                            countDown(attachment.getWriteLatch());
                        }
                    }//while
                }catch ( Throwable t ) {
                    log.error("",t);
                }
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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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     */
    public int write(ByteBuffer buf, NioChannel socket, long writeTimeout,MutableInteger lastWrite) throws IOException {
        SelectionKey key = socket.getIOChannel().keyFor(socket.getPoller().getSelector());
        if ( key == null ) throw new IOException("Key no longer registered");
        KeyReference reference = new KeyReference();
        KeyAttachment att = (KeyAttachment) key.attachment();
        int written = 0;
        boolean timedout = false;
        int keycount = 1; //assume we can write
        long time = System.currentTimeMillis(); //start the timeout timer
        try {
            while ( (!timedout) && buf.hasRemaining()) {
                if (keycount > 0) { //only write if we were registered for a write
                    int cnt = socket.write(buf); //write the data
                    if (lastWrite != null) lastWrite.set(cnt);
                    if (cnt == -1)
                        throw new EOFException();
                    written += cnt;
                    if (cnt > 0) {
                        time = System.currentTimeMillis(); //reset our timeout timer
                        continue; //we successfully wrote, try again without a selector
                    }
                }
                try {
                    if ( att.getWriteLatch()==null || att.getWriteLatch().getCount()==0) att.startWriteLatch(1);
                    poller.add(att,SelectionKey.OP_WRITE,reference);
                    att.awaitWriteLatch(writeTimeout,TimeUnit.MILLISECONDS);
                }catch (InterruptedException ignore) {
                    Thread.interrupted();
                }
                if ( att.getWriteLatch()!=null && att.getWriteLatch().getCount()> 0) {
                    //we got interrupted, but we haven't received notification from the poller.
                    keycount = 0;
                }else {
                    //latch countdown has happened
                    keycount = 1;
                    att.resetWriteLatch();
                }

                if (writeTimeout > 0 && (keycount == 0))
                    timedout = (System.currentTimeMillis() - time) >= writeTimeout;
            } //while
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     */
    public int read(ByteBuffer buf, NioChannel socket, long readTimeout) throws IOException {
        SelectionKey key = socket.getIOChannel().keyFor(socket.getPoller().getSelector());
        if ( key == null ) throw new IOException("Key no longer registered");
        KeyReference reference = new KeyReference();
        KeyAttachment att = (KeyAttachment) key.attachment();
        int read = 0;
        boolean timedout = false;
        int keycount = 1; //assume we can read
        long time = System.currentTimeMillis(); //start the timeout timer
        try {
            while(!timedout) {
                if (keycount > 0) { //only read if we were registered for a read
                    read = socket.read(buf);
                    if (read == -1)
                        throw new EOFException();
                    if (read > 0)
                        break;
                }
                try {
                    if ( att.getReadLatch()==null || att.getReadLatch().getCount()==0) att.startReadLatch(1);
                    poller.add(att,SelectionKey.OP_READ, reference);
                    if (readTimeout < 0) {
                        att.awaitReadLatch(Long.MAX_VALUE, TimeUnit.MILLISECONDS);
                    } else {
                        att.awaitReadLatch(readTimeout, TimeUnit.MILLISECONDS);
                    }
                }catch (InterruptedException ignore) {
                    Thread.interrupted();
                }
                if ( att.getReadLatch()!=null && att.getReadLatch().getCount()> 0) {
                    //we got interrupted, but we haven't received notification from the poller.
                    keycount = 0;
                }else {
                    //latch countdown has happened
                    keycount = 1;
                    att.resetReadLatch();
                }
                if (readTimeout >= 0 && (keycount == 0))
                    timedout = (System.currentTimeMillis() - time) >= readTimeout;
            } //while
            if (timedout)
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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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