1 /* 2 * Copyright (c) 2016, 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 * @bug 8195160 26 * @summary Unit test for socket channels 27 * @requires (os.family == "linux") 28 * @library .. /test/lib 29 * @build RsocketTest 30 * @run main/othervm -Djava.net.preferIPv4Stack=true MinimumRcvBufferSize 31 */ 32 import java.nio.channels.*; 33 import java.net.*; 34 import jdk.net.Sockets; 35 36 public class MinimumRcvBufferSize { 37 38 public static void main(String args[]) throws Exception { 39 if (!RsocketTest.isRsocketAvailable()) 40 return; 41 42 boolean error = false; 43 ServerSocketChannel channel = Sockets.openRdmaServerSocketChannel(); 44 int before = channel.getOption(StandardSocketOptions.SO_RCVBUF); 45 channel.setOption(StandardSocketOptions.SO_RCVBUF, Integer.MAX_VALUE); 46 int after = channel.getOption(StandardSocketOptions.SO_RCVBUF); 47 if (before > after) { 48 System.err.println("Test failed: SO_RCVBUF"); 49 error = true; 50 } 51 52 SocketChannel channel1 = Sockets.openRdmaSocketChannel(); 53 before = channel1.getOption(StandardSocketOptions.SO_SNDBUF); 54 channel1.setOption(StandardSocketOptions.SO_SNDBUF, Integer.MAX_VALUE); 55 after = channel1.getOption(StandardSocketOptions.SO_SNDBUF); 56 if (before > after) { 57 System.err.println("Test failed: SO_SNDBUF"); 58 error = true; 59 } 60 if (error) 61 throw new RuntimeException("Test failed"); 62 } 63 }