public static void main(String[] argv) throws Exception {
Pipe[] pipes = new Pipe[PIPES_COUNT];
Pipe pipe = Pipe.open();
Pipe.SinkChannel sink = pipe.sink();
Pipe.SourceChannel source = pipe.source();
Selector sel = Selector.open();
source.configureBlocking(false);
source.register(sel, SelectionKey.OP_READ);
for (int i = 0; i < PIPES_COUNT; i++) {
pipes[i] = Pipe.open();
Pipe.SourceChannel sc = pipes[i].source();
sc.configureBlocking(false);
sc.register(sel, SelectionKey.OP_READ);
Pipe.SinkChannel sc2 = pipes[i].sink();
sc2.configureBlocking(false);
sc2.register(sel, SelectionKey.OP_WRITE);
}
for (int i = 0; i < LOOPS; i++) {
sink.write(ByteBuffer.allocate(BUF_SIZE));
int x = sel.selectNow();
sel.selectedKeys().clear();
source.read(ByteBuffer.allocate(BUF_SIZE));
}
for (int i = 0; i < PIPES_COUNT; i++) {
pipes[i].sink().close();
pipes[i].source().close();
}
pipe.sink().close();
pipe.source().close();
sel.close();
}
/**
* A convenience method for the following code:
*
* <pre>
* {@link Pipe} inputToOutput = {@link Pipe#open()};
* {@link Pipe.SourceChannel} source = {@link Pipe#source() inputToOutput.source()};
* {@link SelectableChannel#configureBlocking(boolean) source.configureBlocking(false)};
* {@link #addRoute(SelectableChannel, SelectableChannel) addRoute(source, output)};
*
* {@link Pipe.SinkChannel} sink = {@link Pipe#sink() inputToOutput.sink()};
* return {@link #wrapChannelInObjectOutputStream(WritableByteChannel) wrapChannelInObjectOutputStream(sink)};
* </pre>
*
* Users must call {@link ObjectOutputStream#flush()} before attempting to construct a matching
* {@link ObjectInputStream} to ensure a serialization header is available.
*
* @throws IOException pass-through for any {@link IOException} that occurs in the above code
*/
public <T extends SelectableChannel & WritableByteChannel>
ObjectOutputStream addRouteFromObjectOutputStream(T output) throws IOException {
Pipe inputToOutput = Pipe.open();
Pipe.SourceChannel source = inputToOutput.source();
source.configureBlocking(false);
addRoute(source, output);
Pipe.SinkChannel sink = inputToOutput.sink();
return wrapChannelInObjectOutputStream(sink);
}
public SelectorImpl(SelectorProvider selectorProvider) {
super(selectorProvider);
try {
Pipe mockSelector = selectorProvider.openPipe();
sink = mockSelector.sink();
source = mockSelector.source();
sourcefd = ((FileDescriptorHandler) source).getFD();
source.configureBlocking(false);
} catch (IOException e) {
// do nothing
}
}