1 /* SocketChannelImpl.java --
2 Copyright (C) 2002 Free Software Foundation, Inc.
4 This file is part of GNU Classpath.
6 GNU Classpath is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU Classpath is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU Classpath; see the file COPYING. If not, write to the
18 Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 Linking this library statically or dynamically with other modules is
22 making a combined work based on this library. Thus, the terms and
23 conditions of the GNU General Public License cover the whole
26 As a special exception, the copyright holders of this library give you
27 permission to link this library with independent modules to produce an
28 executable, regardless of the license terms of these independent
29 modules, and to copy and distribute the resulting executable under
30 terms of your choice, provided that you also meet, for each linked
31 independent module, the terms and conditions of the license of that
32 module. An independent module is a module which is not derived from
33 or based on this library. If you modify this library, you may extend
34 this exception to your version of the library, but you are not
35 obligated to do so. If you do not wish to do so, delete this
36 exception statement from your version. */
40 import java.io.IOException;
41 import java.net.InetAddress;
42 import java.net.InetSocketAddress;
43 import java.net.Socket;
44 import java.net.SocketAddress;
45 import java.nio.ByteBuffer;
46 import java.nio.channels.AlreadyConnectedException;
47 import java.nio.channels.SocketChannel;
48 import java.nio.channels.spi.SelectorProvider;
49 import gnu.classpath.Configuration;
51 public class SocketChannelImpl extends SocketChannel
56 boolean blocking = true;
57 boolean connected = false;
60 static native int SocketCreate();
61 static native int SocketConnect(int fd, InetAddress addr, int port);
62 static native int SocketBind(int fd, InetAddress addr, int port);
63 static native int SocketListen(int fd, int backlog);
64 static native int SocketAvailable(int fd);
65 static native int SocketClose(int fd);
66 static native int SocketRead(int fd, byte b[], int off, int len);
67 static native int SocketWrite(int fd, byte b[], int off, int len);
69 public SocketChannelImpl(SelectorProvider provider)
76 System.err.println("failed to create socket:"+fd);
80 public void finalizer()
94 protected void implCloseSelectableChannel()
101 protected void implConfigureBlocking(boolean block)
103 if (blocking == block)
107 public boolean connect(SocketAddress remote)
112 throw new AlreadyConnectedException();
115 // ok, lets connect !
117 sa = (InetSocketAddress) remote;
119 InetAddress addr = sa.getAddress();
120 int port = sa.getPort();
121 int err = SocketConnect(fd, addr, port);
125 throw new IOException("Connection refused:"+err + ", connect="+err);
133 public boolean finishConnect()
138 public boolean isConnected()
143 public boolean isConnectionPending()
151 public Socket socket()
153 if (sock_object != null)
155 //sock_object.ch = this;
161 public int read(ByteBuffer dst)
165 byte[]b = new byte[len];
167 bytes = SocketRead(fd, b, 0, len);
168 dst.put(b, 0, bytes);
179 public long read(ByteBuffer[] dsts, int offset, int length)
183 for (int i=offset; i<length; i++)
185 bytes += read(dsts[i]);
191 public int write(ByteBuffer src)
194 int len = src.position();
196 if (src instanceof ByteBufferImpl)
198 ByteBufferImpl bi = (ByteBufferImpl) src;
199 byte[]b = bi.array();
200 bytes = SocketWrite(fd, b, 0, len);
204 byte[]b = new byte[len];
206 bytes = SocketWrite(fd, b, 0, len);
212 public long write (ByteBuffer[] srcs, int offset, int length)
216 for (int i=offset; i<length; i++)
218 bytes += write(srcs[i]);