Package net.i2p.router.transport.ntcp

Class EventPumper

java.lang.Object
net.i2p.router.transport.ntcp.EventPumper
All Implemented Interfaces:
Runnable
class EventPumper extends Object implements Runnable
The main NTCP NIO thread.

  • Constructor Details

  • Method Details

    • startPumping

      public void startPumping()

    • stopPumping

      public void stopPumping()

    • isAlive

      public boolean isAlive()
      Selector can take quite a while to close after calling stopPumping()

    • register

      public void register(ServerSocketChannel chan)
      Register the acceptor. This is only called from NTCPTransport.bindAddress(), so it isn't clear why this needs a queue.

    • registerConnect

      public void registerConnect(NTCPConnection con)
      Outbound

    • run

      public void run()
      The selector loop. On high-bandwidth routers, this is the thread with the highest CPU usage, so take care to minimize overhead and unnecessary debugging stuff.
      Specified by:
      run in interface Runnable

    • wantsWrite

      public void wantsWrite(NTCPConnection con)
      Called by the connection when it has data ready to write (after bw allocation). Only wakeup if new.

    • wantsRead

      public void wantsRead(NTCPConnection con)
      This is only called from NTCPConnection.complete() if there is more data, which is rare (never?) so we don't need to check for dups or make _wantsRead a Set.

    • releaseBuf

      public static void releaseBuf(ByteBuffer buf)
      Return a read buffer to the pool. These buffers must be from acquireBuf(), i.e. capacity() == BUF_SIZE. High-frequency path in thread.

    • processWrite

      public boolean processWrite(NTCPConnection con, SelectionKey key)
      Asynchronous write all buffers to the channel. This method will disable the interest if no more writes remain. If this returns false, caller MUST call wantsWrite(con)
      Parameters:
      key - non-null
      Returns:
      true if all buffers were completely written, false if buffers remain
      Since:
      0.9.53

    • getIdleTimeout

      public long getIdleTimeout()

    • setInterest

      public static void setInterest(SelectionKey key, int op) throws CancelledKeyException
      Warning - caller should catch unchecked CancelledKeyException
      Throws:
      CancelledKeyException - which is unchecked
      Since:
      0.9.53

    • clearInterest

      public static void clearInterest(SelectionKey key, int op) throws CancelledKeyException
      Warning - caller should catch unchecked CancelledKeyException
      Throws:
      CancelledKeyException - which is unchecked
      Since:
      0.9.53