channels/DatagramChannel/SocketOptionTests.java

40     static <T> void checkOption(DatagramChannel dc,
45         T value = dc.getOption(name);
51         DatagramChannel dc = DatagramChannel.open();
54         Set<SocketOption<?>> options = dc.supportedOptions();
72         checkOption(dc, SO_BROADCAST, false);
73         checkOption(dc, IP_MULTICAST_TTL, 1);           // true on supported platforms
74         checkOption(dc, IP_MULTICAST_LOOP, true);       // true on supported platforms
77         dc.setOption(SO_BROADCAST, true);
78         checkOption(dc, SO_BROADCAST, true);
79         dc.setOption(SO_BROADCAST, false);
80         checkOption(dc, SO_BROADCAST, false);
81         dc.setOption(SO_SNDBUF, 128*1024);       // can't check
82         dc.setOption(SO_RCVBUF, 128*1024);       // can't check
84         before = dc.getOption(SO_SNDBUF);
85         after = dc.setOption(SO_SNDBUF, Integer.MAX_VALUE).getOption(SO_SNDBUF);
88         before = dc.getOption(SO_RCVBUF);
89         after = dc.setOption(SO_RCVBUF, Integer.MAX_VALUE).getOption(SO_RCVBUF);
92         dc.setOption(SO_REUSEADDR, true);
93         checkOption(dc, SO_REUSEADDR, true);
94         dc.setOption(SO_REUSEADDR, false);
95         checkOption(dc, SO_REUSEADDR, false);
97             dc.setOption(SO_REUSEPORT, true);
98             checkOption(dc, SO_REUSEPORT, true);
99             dc.setOption(SO_REUSEPORT, false);
100             checkOption(dc, SO_REUSEPORT, false);
103         dc.bind(new InetSocketAddress(0));
106         dc.setOption(SO_BROADCAST, true);
107         checkOption(dc, SO_BROADCAST, true);
108         dc.setOption(SO_BROADCAST, false);
109         checkOption(dc, SO_BROADCAST, false);
110         dc.setOption(IP_TOS, 0x08);     // can't check
111         dc.setOption(IP_MULTICAST_TTL, 2);
112         checkOption(dc, IP_MULTICAST_TTL, 2);
113         dc.setOption(IP_MULTICAST_LOOP, false);
114         checkOption(dc, IP_MULTICAST_LOOP, false);
115         dc.setOption(IP_MULTICAST_LOOP, true);
116         checkOption(dc, IP_MULTICAST_LOOP, true);
121             dc.setOption(null, "value");
126             dc.getOption(null);
132         dc.close();
134             dc.setOption(IP_MULTICAST_LOOP, true);