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(); }
private static void scScatter() throws Exception { Pipe p = Pipe.open(); Pipe.SinkChannel sink = p.sink(); Pipe.SourceChannel source = p.source(); sink.configureBlocking(false); ByteBuffer outgoingdata = ByteBuffer.allocateDirect(30); byte[] someBytes = new byte[30]; generator.nextBytes(someBytes); outgoingdata.put(someBytes); outgoingdata.flip(); int totalWritten = 0; while (totalWritten < 30) { int written = sink.write(outgoingdata); if (written < 0) throw new Exception("Write failed"); totalWritten += written; } ByteBuffer[] bufs = new ByteBuffer[3]; for (int i = 0; i < 3; i++) bufs[i] = ByteBuffer.allocateDirect(10); long numBytesRead = source.read(bufs); if (numBytesRead < 30) throw new Exception("Pipe test failed"); sink.close(); source.close(); }