jdk/src/java.base/share/classes/sun/nio/ch/SocketOptionRegistry.java.template
author erikj
Thu, 24 Mar 2016 14:23:37 +0100
changeset 36672 9e18f32e76c9
permissions -rw-r--r--
8152545: Use preprocessor instead of compiling a program to generate native nio constants Reviewed-by: alanb
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/*
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 * Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved.
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 *
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Oracle designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Oracle in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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@@END_COPYRIGHT@@
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#include <stdio.h>
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#ifdef _WIN32
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#include <winsock2.h>
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#include <ws2tcpip.h>
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#else
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#endif
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/* Defines SO_REUSEPORT */
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#if !defined(SO_REUSEPORT)
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#ifdef _WIN32
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#define SO_REUSEPORT 0
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#elif __linux__
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#define SO_REUSEPORT 15
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#elif __solaris__
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#define SO_REUSEPORT 0x100e
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#elif defined(AIX) || defined(MACOSX)
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#define SO_REUSEPORT 0x0200
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#else
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#define SO_REUSEPORT 0
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#endif
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#endif
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/* On Solaris, "sun" is defined as a macro. Undefine to make package
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   declaration valid */
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#undef sun
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/* To be able to name the Java constants the same as the C constants without
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   having the preprocessor rewrite those identifiers, add PREFIX_ to all
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   identifiers matching a C constant. The PREFIX_ is filtered out in the
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   makefile. */
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@@START_HERE@@
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package sun.nio.ch;
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import java.net.SocketOption;
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import java.net.StandardSocketOptions;
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import java.net.ProtocolFamily;
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import java.net.StandardProtocolFamily;
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import java.util.Map;
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import java.util.HashMap;
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class SocketOptionRegistry {
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    private SocketOptionRegistry() { }
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    private static class RegistryKey {
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        private final SocketOption<?> name;
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        private final ProtocolFamily family;
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        RegistryKey(SocketOption<?> name, ProtocolFamily family) {
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            this.name = name;
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            this.family = family;
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        }
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        public int hashCode() {
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            return name.hashCode() + family.hashCode();
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        }
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        public boolean equals(Object ob) {
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            if (ob == null) return false;
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            if (!(ob instanceof RegistryKey)) return false;
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            RegistryKey other = (RegistryKey)ob;
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            if (this.name != other.name) return false;
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            if (this.family != other.family) return false;
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            return true;
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        }
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    }
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    private static class LazyInitialization {
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        static final Map<RegistryKey,OptionKey> options = options();
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        private static Map<RegistryKey,OptionKey> options() {
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            Map<RegistryKey,OptionKey> map =
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                new HashMap<RegistryKey,OptionKey>();
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_BROADCAST,
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                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_BROADCAST));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_KEEPALIVE,
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                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_KEEPALIVE));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_LINGER,
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                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_LINGER));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_SNDBUF,
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                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_SNDBUF));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_RCVBUF,
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                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_RCVBUF));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_REUSEADDR,
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                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_REUSEADDR));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_SO_REUSEPORT,
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                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_REUSEPORT));
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            // IPPROTO_TCP is 6
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_TCP_NODELAY,
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                Net.UNSPEC), new OptionKey(6, TCP_NODELAY));
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            // IPPROTO_IP is 0
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_TOS,
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                StandardProtocolFamily.INET), new OptionKey(0, IP_TOS));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_IF,
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                StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_IF));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_TTL,
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                StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_TTL));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_LOOP,
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                StandardProtocolFamily.INET), new OptionKey(0, IP_MULTICAST_LOOP));
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#ifdef AF_INET6
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            // IPPROTO_IPV6 is 41
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_TOS,
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                StandardProtocolFamily.INET6), new OptionKey(41, IPV6_TCLASS));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_IF,
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                StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_IF));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_TTL,
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                StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_HOPS));
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            map.put(new RegistryKey(StandardSocketOptions.PREFIX_IP_MULTICAST_LOOP,
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                StandardProtocolFamily.INET6), new OptionKey(41, IPV6_MULTICAST_LOOP));
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#endif
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            map.put(new RegistryKey(ExtendedSocketOption.PREFIX_SO_OOBINLINE,
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                Net.UNSPEC), new OptionKey(SOL_SOCKET, SO_OOBINLINE));
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            return map;
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        }
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    }
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    public static OptionKey findOption(SocketOption<?> name, ProtocolFamily family) {
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        RegistryKey key = new RegistryKey(name, family);
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        return LazyInitialization.options.get(key);
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    }
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}