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11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
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25 package jdk.net;
26 
27 import java.net.SocketException;
28 import java.security.AccessController;
29 import java.security.PrivilegedAction;
30 import jdk.net.ExtendedSocketOptions.PlatformSocketOptions;
31 
32 class LinuxSocketOptions extends PlatformSocketOptions {
33 
LinuxSocketOptions()34     public LinuxSocketOptions() {
35     }
36 
37     @Override
setQuickAck(int fd, boolean on)38     void setQuickAck(int fd, boolean on) throws SocketException {
39         setQuickAck0(fd, on);
40     }
41 
42     @Override
getQuickAck(int fd)43     boolean getQuickAck(int fd) throws SocketException {
44         return getQuickAck0(fd);
45     }
46 
47     @Override
quickAckSupported()48     public boolean quickAckSupported() {
49         return quickAckSupported0();
50     }
51 
52     @Override
keepAliveOptionsSupported()53     boolean keepAliveOptionsSupported() {
54         return keepAliveOptionsSupported0();
55     }
56 
57     @Override
setTcpkeepAliveProbes(int fd, final int value)58     void setTcpkeepAliveProbes(int fd, final int value) throws SocketException {
59         setTcpkeepAliveProbes0(fd, value);
60     }
61 
62     @Override
setTcpKeepAliveTime(int fd, final int value)63     void setTcpKeepAliveTime(int fd, final int value) throws SocketException {
64         setTcpKeepAliveTime0(fd, value);
65     }
66 
67     @Override
setTcpKeepAliveIntvl(int fd, final int value)68     void setTcpKeepAliveIntvl(int fd, final int value) throws SocketException {
69         setTcpKeepAliveIntvl0(fd, value);
70     }
71 
72     @Override
getTcpkeepAliveProbes(int fd)73     int getTcpkeepAliveProbes(int fd) throws SocketException {
74         return getTcpkeepAliveProbes0(fd);
75     }
76 
77     @Override
getTcpKeepAliveTime(int fd)78     int getTcpKeepAliveTime(int fd) throws SocketException {
79         return getTcpKeepAliveTime0(fd);
80     }
81 
82     @Override
getTcpKeepAliveIntvl(int fd)83     int getTcpKeepAliveIntvl(int fd) throws SocketException {
84         return getTcpKeepAliveIntvl0(fd);
85     }
86 
setTcpkeepAliveProbes0(int fd, int value)87     private static native void setTcpkeepAliveProbes0(int fd, int value) throws SocketException;
setTcpKeepAliveTime0(int fd, int value)88     private static native void setTcpKeepAliveTime0(int fd, int value) throws SocketException;
setTcpKeepAliveIntvl0(int fd, int value)89     private static native void setTcpKeepAliveIntvl0(int fd, int value) throws SocketException;
getTcpkeepAliveProbes0(int fd)90     private static native int getTcpkeepAliveProbes0(int fd) throws SocketException;
getTcpKeepAliveTime0(int fd)91     private static native int getTcpKeepAliveTime0(int fd) throws SocketException;
getTcpKeepAliveIntvl0(int fd)92     private static native int getTcpKeepAliveIntvl0(int fd) throws SocketException;
setQuickAck0(int fd, boolean on)93     private static native void setQuickAck0(int fd, boolean on) throws SocketException;
getQuickAck0(int fd)94     private static native boolean getQuickAck0(int fd) throws SocketException;
keepAliveOptionsSupported0()95     private static native boolean keepAliveOptionsSupported0();
quickAckSupported0()96     private static native boolean quickAckSupported0();
97     static {
AccessController.doPrivileged(PrivilegedAction<Void>) () -> { System.loadLibrary(R); return null; }98         AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
99             System.loadLibrary("extnet");
100             return null;
101         });
102     }
103 }