android.system

Class StructPollfd

java.lang.Object

android.system.StructPollfd

public final class StructPollfd
extends Object

Used as an in/out parameter to Os.poll(android.system.StructPollfd[], int). Corresponds to C's struct pollfd from <poll.h>.

Field Summary

Fields

Modifier and Type	Field and Description
short	events The events we're interested in.
FileDescriptor	fd The file descriptor to poll.
short	revents The events that actually happened.
Object	userData A non-standard extension that lets callers conveniently map back to the object their fd belongs to.

Constructor Summary

Constructors

Constructor and Description
StructPollfd()

Method Summary

Modifier and Type	Method and Description
String	toString() Returns a string containing a concise, human-readable description of this object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

fd

public FileDescriptor fd

The file descriptor to poll.

events

public short events

The events we're interested in. POLLIN corresponds to being in select(2)'s read fd set, POLLOUT to the write fd set.

revents

public short revents

The events that actually happened.

userData

public Object userData

A non-standard extension that lets callers conveniently map back to the object their fd belongs to. This is used by Selector, for example, to associate each FileDescriptor with the corresponding SelectionKey.

Constructor Detail

StructPollfd

public StructPollfd()

Method Detail

toString

public String toString()

Description copied from class: Object

Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression:

   getClass().getName() + '@' + Integer.toHexString(hashCode())

See Writing a useful toString method if you intend implementing your own toString method.

Overrides:

toString in class Object

Returns:

a printable representation of this object.