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## org.apache.tomcat.util.net
Class NioEndpoint.Poller

    java.lang.Object
      org.apache.tomcat.util.net.NioEndpoint.Poller

All Implemented Interfaces:
  Runnable

Enclosing class:
  NioEndpoint

    public class NioEndpoint.Poller

extends Object
implements Runnable

Poller class.

Field Summary
`protected boolean` | `close`
`protected ConcurrentLinkedQueue<Runnable>` | `events`
`protected int` | `keyCount`
`protected long` | `nextExpiration`
`protected Selector` | `selector`
`protected AtomicLong` | `wakeupCounter`

Constructor Summary
`NioEndpoint.Poller()`

Method Summary
`void` | `add(NioChannel socket)` Add specified socket and associated pool to the poller.
`void` | `add(NioChannel socket, int interestOps)`
`void` | `addEvent(Runnable event)`
`void` | `cancelledKey(SelectionKey key, SocketStatus status, boolean dispatch)`
`void` | `cometInterest(NioChannel socket)`
`protected void` | `destroy()` Destroy the poller.
`boolean` | `events()` Processes events in the event queue of the Poller.
`int` | `getKeyCount()`
`Selector` | `getSelector()`
`protected boolean` | `processKey(SelectionKey sk, NioEndpoint.KeyAttachment attachment)`
`boolean` | `processSendfile(SelectionKey sk, NioEndpoint.KeyAttachment attachment, boolean event)`
`boolean` | `processSendfile(SelectionKey sk, NioEndpoint.KeyAttachment attachment, boolean reg, boolean event)` Deprecated. Replaced by processSendfile(sk, attachment, event)
`protected void` | `reg(SelectionKey sk, NioEndpoint.KeyAttachment attachment, int intops)`
`void` | `register(NioChannel socket)`
`void` | `run()` The background thread that listens for incoming TCP/IP connections and hands them off to an appropriate processor.
`protected void` | `timeout(int keyCount, boolean hasEvents)`
`protected void` | `unreg(SelectionKey sk, NioEndpoint.KeyAttachment attachment, int readyOps)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### selector

    protected Selector selector

### events

    protected ConcurrentLinkedQueue<Runnable> events

### close

    protected volatile boolean close

### nextExpiration

    protected long nextExpiration

### wakeupCounter

    protected AtomicLong wakeupCounter

### keyCount

    protected volatile int keyCount

Constructor Detail

### NioEndpoint.Poller

    public NioEndpoint.Poller()
                       throws IOException

Throws:
  `IOException`

Method Detail

### getKeyCount

    public int getKeyCount()

### getSelector

    public Selector getSelector()

### destroy

    protected void destroy()

  Destroy the poller.

### addEvent

    public void addEvent(Runnable event)

### cometInterest

    public void cometInterest(NioChannel socket)

### add

    public void add(NioChannel socket)

  Add specified socket and associated pool to the poller. The socket will be added to a temporary array, and polled first after a maximum amount of time equal to pollTime (in most cases, latency will be much lower, however).

  Parameters:
    `socket` - to add to the poller

### add

    public void add(NioChannel socket,
                    int interestOps)

### events

    public boolean events()

  Processes events in the event queue of the Poller.

  Returns:
    `true` if some events were processed, `false` if queue was empty

### register

    public void register(NioChannel socket)

### cancelledKey

    public void cancelledKey(SelectionKey key,
                             SocketStatus status,
                             boolean dispatch)

### run

    public void run()

  The background thread that listens for incoming TCP/IP connections and hands them off to an appropriate processor.

  Specified by:
    `run` in interface `Runnable`

### processKey

    protected boolean processKey(SelectionKey sk,
                                 NioEndpoint.KeyAttachment attachment)

### processSendfile

    @Deprecated
    public boolean processSendfile(SelectionKey sk,
                                              NioEndpoint.KeyAttachment attachment,
                                              boolean reg,
                                              boolean event)

  Deprecated. Replaced by processSendfile(sk, attachment, event)

### processSendfile

    public boolean processSendfile(SelectionKey sk,
                                   NioEndpoint.KeyAttachment attachment,
                                   boolean event)

### unreg

    protected void unreg(SelectionKey sk,
                         NioEndpoint.KeyAttachment attachment,
                         int readyOps)

### reg

    protected void reg(SelectionKey sk,
                       NioEndpoint.KeyAttachment attachment,
                       int intops)

### timeout

    protected void timeout(int keyCount,
                           boolean hasEvents)

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Copyright © 2000-2012 Apache Software Foundation. All Rights Reserved.