@Override
<V extends Number, A> Future<V> implRead(
boolean isScatteringRead,
ByteBuffer dst,
ByteBuffer[] dsts,
long timeout,
TimeUnit unit,
A attachment,
CompletionHandler<V, ? super A> handler) {
// setup task
PendingFuture<V, A> result = new PendingFuture<V, A>(this, handler, attachment);
ByteBuffer[] bufs;
if (isScatteringRead) {
bufs = dsts;
} else {
bufs = new ByteBuffer[1];
bufs[0] = dst;
}
final ReadTask readTask = new ReadTask<V, A>(bufs, isScatteringRead, result);
result.setContext(readTask);
// schedule timeout
if (timeout > 0L) {
Future<?> timeoutTask =
iocp.schedule(
new Runnable() {
public void run() {
readTask.timeout();
}
},
timeout,
unit);
result.setTimeoutTask(timeoutTask);
}
// initiate I/O
if (Iocp.supportsThreadAgnosticIo()) {
readTask.run();
} else {
Invoker.invokeOnThreadInThreadPool(this, readTask);
}
return result;
}
