public static interface MessageQueue.OnFileDescriptorEventListener
Modifier and Type | Interface and Description |
---|---|
static interface |
MessageQueue.OnFileDescriptorEventListener.Events |
Modifier and Type | Field and Description |
---|---|
static int |
EVENT_ERROR
File descriptor event: Indicates that the file descriptor encountered a
fatal error.
|
static int |
EVENT_INPUT
File descriptor event: Indicates that the file descriptor is ready for input
operations, such as reading.
|
static int |
EVENT_OUTPUT
File descriptor event: Indicates that the file descriptor is ready for output
operations, such as writing.
|
Modifier and Type | Method and Description |
---|---|
int |
onFileDescriptorEvents(FileDescriptor fd,
int events)
Called when a file descriptor receives events.
|
static final int EVENT_INPUT
The listener should read all available data from the file descriptor
then return true
to keep the listener active or false
to remove the listener.
In the case of a socket, this event may be generated to indicate that there is at least one incoming connection that the listener should accept.
This event will only be generated if the EVENT_INPUT
event mask was
specified when the listener was added.
static final int EVENT_OUTPUT
The listener should write as much data as it needs. If it could not
write everything at once, then it should return true
to
keep the listener active. Otherwise, it should return false
to remove the listener then re-register it later when it needs to write
something else.
This event will only be generated if the EVENT_OUTPUT
event mask was
specified when the listener was added.
static final int EVENT_ERROR
File descriptor errors can occur for various reasons. One common error is when the remote peer of a socket or pipe closes its end of the connection.
This event may be generated at any time regardless of whether the
EVENT_ERROR
event mask was specified when the listener was added.
int onFileDescriptorEvents(FileDescriptor fd, int events)
fd
- The file descriptor.events
- The set of events that occurred: a combination of the
EVENT_INPUT
, EVENT_OUTPUT
, and EVENT_ERROR
event masks.EVENT_INPUT
,
EVENT_OUTPUT
,
EVENT_ERROR