/***** BEGIN LICENSE BLOCK *****
* Version: EPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Eclipse Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/epl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2008 Ola Bini <ola.bini@gmail.com>
*
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* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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package org.jruby.ext.socket;
import jnr.constants.platform.Fcntl;
import jnr.constants.platform.OpenFlags;
import jnr.constants.platform.SocketLevel;
import jnr.constants.platform.SocketOption;
import jnr.ffi.LastError;
import jnr.unixsocket.UnixServerSocket;
import jnr.unixsocket.UnixServerSocketChannel;
import jnr.unixsocket.UnixSocketAddress;
import jnr.unixsocket.UnixSocketChannel;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.RubyNumeric;
import org.jruby.RubyString;
import org.jruby.anno.JRubyClass;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.Helpers;
import org.jruby.runtime.ObjectAllocator;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.Visibility;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.util.ByteList;
import org.jruby.util.io.ModeFlags;
import java.io.File;
import java.io.IOException;
import java.nio.channels.Channel;
@JRubyClass(name="UNIXSocket", parent="BasicSocket")
public class RubyUNIXSocket extends RubyBasicSocket {
private static ObjectAllocator UNIXSOCKET_ALLOCATOR = new ObjectAllocator() {
public IRubyObject allocate(Ruby runtime, RubyClass klass) {
return new RubyUNIXSocket(runtime, klass);
}
};
static void createUNIXSocket(Ruby runtime) {
RubyClass rb_cUNIXSocket = runtime.defineClass("UNIXSocket", runtime.getClass("BasicSocket"), UNIXSOCKET_ALLOCATOR);
runtime.getObject().setConstant("UNIXsocket", rb_cUNIXSocket);
rb_cUNIXSocket.defineAnnotatedMethods(RubyUNIXSocket.class);
}
public RubyUNIXSocket(Ruby runtime, RubyClass type) {
super(runtime, type);
}
@JRubyMethod(visibility = Visibility.PRIVATE)
public IRubyObject initialize(ThreadContext context, IRubyObject path) {
init_unixsock(context.runtime, path, false);
return context.nil;
}
@JRubyMethod
public IRubyObject path(ThreadContext context) {
return RubyString.newEmptyString(context.runtime);
}
@JRubyMethod
public IRubyObject addr(ThreadContext context) {
Ruby runtime = context.runtime;
return runtime.newArray(
runtime.newString("AF_UNIX"),
RubyString.newEmptyString(runtime));
}
@JRubyMethod
public IRubyObject peeraddr(ThreadContext context) {
Ruby runtime = context.runtime;
return runtime.newArray(
runtime.newString("AF_UNIX"),
runtime.newString(openFile.getPath()));
}
@JRubyMethod(name = "recvfrom", required = 1, optional = 1)
public IRubyObject recvfrom(ThreadContext context, IRubyObject[] args) {
Ruby runtime = context.runtime;
IRubyObject _length = args[0];
IRubyObject _flags;
if(args.length == 2) {
_flags = args[1];
} else {
_flags = runtime.getNil();
}
// TODO
int flags;
_length = args[0];
if(_flags.isNil()) {
flags = 0;
} else {
flags = RubyNumeric.fix2int(_flags);
}
return runtime.newArray(
recv(context, _length),
peeraddr(context));
}
@JRubyMethod(notImplemented = true)
public IRubyObject send_io(IRubyObject path) {
//TODO: implement, won't do this now
return getRuntime().getNil();
}
@JRubyMethod(rest = true, notImplemented = true)
public IRubyObject recv_io(IRubyObject[] args) {
//TODO: implement, won't do this now
return getRuntime().getNil();
}
@JRubyMethod(name = {"socketpair", "pair"}, optional = 2, meta = true)
public static IRubyObject socketpair(ThreadContext context, IRubyObject recv, IRubyObject[] args) {
Ruby runtime = context.runtime;
// TODO: type and protocol
UnixSocketChannel[] sp;
try {
sp = UnixSocketChannel.pair();
RubyUNIXSocket sock = (RubyUNIXSocket)(Helpers.invoke(context, runtime.getClass("UNIXSocket"), "allocate"));
sock.init_sock(runtime, sp[0], "");
RubyUNIXSocket sock2 = (RubyUNIXSocket)(Helpers.invoke(context, runtime.getClass("UNIXSocket"), "allocate"));
sock2.init_sock(runtime, sp[1], "");
return runtime.newArray(sock, sock2);
} catch (IOException ioe) {
throw runtime.newIOErrorFromException(ioe);
}
}
@Override
public IRubyObject setsockopt(ThreadContext context, IRubyObject _level, IRubyObject _opt, IRubyObject val) {
SocketLevel level = levelFromArg(_level);
SocketOption opt = optionFromArg(_opt);
switch(level) {
case SOL_SOCKET:
switch(opt) {
case SO_KEEPALIVE: {
// TODO: socket options
}
break;
default:
throw context.runtime.newErrnoENOPROTOOPTError();
}
break;
default:
throw context.runtime.newErrnoENOPROTOOPTError();
}
return context.runtime.newFixnum(0);
}
protected static void rb_sys_fail(Ruby runtime, String message) {
final int n = LastError.getLastError(jnr.ffi.Runtime.getSystemRuntime());
RubyClass instance = runtime.getErrno(n);
if(instance == null) {
throw runtime.newSystemCallError(message);
} else {
throw runtime.newErrnoFromInt(n, message);
}
}
protected void init_unixsock(Ruby runtime, IRubyObject _path, boolean server) {
ByteList path = _path.convertToString().getByteList();
String fpath = Helpers.decodeByteList(runtime, path);
int maxSize = 103; // Max size from Darwin, lowest common value we know of
if (fpath.length() > 103) {
throw runtime.newArgumentError("too long unix socket path (max: " + maxSize + "bytes)");
}
try {
if (server) {
UnixServerSocketChannel channel = UnixServerSocketChannel.open();
UnixServerSocket socket = channel.socket();
// TODO: listen backlog
socket.bind(new UnixSocketAddress(new File(fpath)));
init_sock(runtime, channel, fpath);
} else {
File fpathFile = new File(fpath);
if (!fpathFile.exists()) {
throw runtime.newErrnoENOENTError("unix socket");
}
UnixSocketChannel channel = UnixSocketChannel.open();
channel.connect(new UnixSocketAddress(fpathFile));
init_sock(runtime, channel);
}
} catch (IOException ioe) {
throw runtime.newIOErrorFromException(ioe);
}
}
protected void init_sock(Ruby runtime, Channel channel, String path) {
MakeOpenFile();
ModeFlags modes = newModeFlags(runtime, ModeFlags.RDWR);
openFile.setFD(newChannelFD(runtime, channel));
openFile.setMode(modes.getOpenFileFlags());
openFile.setSync(true);
openFile.setPath(path);
}
protected void init_sock(Ruby runtime, Channel channel) {
init_sock(runtime, channel, null);
}
private UnixSocketChannel asUnixSocket() {
return (UnixSocketChannel)getOpenFile().fd().ch;
}
protected final static int F_GETFL = Fcntl.F_GETFL.intValue();
protected final static int F_SETFL = Fcntl.F_SETFL.intValue();
protected final static int O_NONBLOCK = OpenFlags.O_NONBLOCK.intValue();
}