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package sun.nio.ch;

import java.nio.channels.Channel;
import java.io.FileDescriptor;
import java.io.IOException;

import static java.util.concurrent.TimeUnit.NANOSECONDS;

An interface that allows translation (and more!).
Since:1.4
/** * An interface that allows translation (and more!). * * @since 1.4 */
public interface SelChImpl extends Channel { FileDescriptor getFD(); int getFDVal();
Adds the specified ops if present in interestOps. The specified ops are turned on without affecting the other ops.
Returns: true iff the new value of sk.readyOps() set by this method contains at least one bit that the previous value did not contain
/** * Adds the specified ops if present in interestOps. The specified * ops are turned on without affecting the other ops. * * @return true iff the new value of sk.readyOps() set by this method * contains at least one bit that the previous value did not * contain */
boolean translateAndUpdateReadyOps(int ops, SelectionKeyImpl ski);
Sets the specified ops if present in interestOps. The specified ops are turned on, and all other ops are turned off.
Returns: true iff the new value of sk.readyOps() set by this method contains at least one bit that the previous value did not contain
/** * Sets the specified ops if present in interestOps. The specified * ops are turned on, and all other ops are turned off. * * @return true iff the new value of sk.readyOps() set by this method * contains at least one bit that the previous value did not * contain */
boolean translateAndSetReadyOps(int ops, SelectionKeyImpl ski);
Translates an interest operation set into a native event set
/** * Translates an interest operation set into a native event set */
int translateInterestOps(int ops); void kill() throws IOException;
Disables the current thread for scheduling purposes until this channel is ready for I/O, or asynchronously closed, for up to the specified waiting time.

This method does not report which of these caused the method to return. Callers should re-check the conditions which caused the thread to park.

Params:
  • event – the event to poll
  • nanos – the timeout to wait; <= 0 to wait indefinitely
/** * Disables the current thread for scheduling purposes until this * channel is ready for I/O, or asynchronously closed, for up to the * specified waiting time. * * <p> This method does <em>not</em> report which of these caused the * method to return. Callers should re-check the conditions which caused * the thread to park. * * @param event the event to poll * @param nanos the timeout to wait; {@code <= 0} to wait indefinitely */
default void park(int event, long nanos) throws IOException { long millis; if (nanos <= 0) { millis = -1; } else { millis = NANOSECONDS.toMillis(nanos); } Net.poll(getFD(), event, millis); }
Disables the current thread for scheduling purposes until this channel is ready for I/O, or asynchronously closed.

This method does not report which of these caused the method to return. Callers should re-check the conditions which caused the thread to park.

Params:
  • event – the event to poll
/** * Disables the current thread for scheduling purposes until this * channel is ready for I/O, or asynchronously closed. * * <p> This method does <em>not</em> report which of these caused the * method to return. Callers should re-check the conditions which caused * the thread to park. * * @param event the event to poll */
default void park(int event) throws IOException { park(event, 0L); } }