Author: markt
Date: Tue Mar 12 20:01:26 2013
New Revision: 1455688
URL: http://svn.apache.org/r1455688
Log:
Test case that attempts to replicate the problem I am seeing with WebSocket and
APR.
The test case currently passes. The major differences are that the test case
doesn't use a poller and doesn't use SSL. I'll add those next.
Added:
tomcat/trunk/test/org/apache/tomcat/jni/
tomcat/trunk/test/org/apache/tomcat/jni/TestSocket.java (with props)
Added: tomcat/trunk/test/org/apache/tomcat/jni/TestSocket.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/test/org/apache/tomcat/jni/TestSocket.java?rev=1455688&view=auto
==============================================================================
--- tomcat/trunk/test/org/apache/tomcat/jni/TestSocket.java (added)
+++ tomcat/trunk/test/org/apache/tomcat/jni/TestSocket.java Tue Mar 12 20:01:26
2013
@@ -0,0 +1,214 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (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.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.tomcat.jni;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.ByteBuffer;
+import java.nio.charset.Charset;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+public class TestSocket {
+
+ private static final Charset ISO_8859_1 = Charset.forName("ISO-8859-1");
+ private static final Object clientWait = new Object();
+ private static final Object serverWait = new Object();
+
+ @Test
+ public void testNonBlockingEagain() throws Exception {
+
+ try {
+ Library.initialize(null);
+ } catch (Throwable t) {
+ System.err.println("Unable to initialize APR library");
+ t.printStackTrace(System.err);
+ return;
+ }
+
+ Server s = new Server();
+
+ int port = s.getPort();
+
+ // Start the server
+ java.lang.Thread t = new java.lang.Thread(s);
+ t.setName("testNonBlockingEagain-Server");
+ t.start();
+
+ // Open a connection to the server
+ String host = null;
+ java.net.Socket socket = new java.net.Socket(host, port);
+ // Infinite timeout
+ socket.setSoTimeout(0);
+ InputStream is = socket.getInputStream();
+
+ ByteBuffer bb = ByteBuffer.allocate(20);
+ int data = 0;
+
+
+ // Read the first 20 digits.
+ data = clientRead(is, bb, data, 20);
+
+ // Block until the server fills up it's send buffers
+ /*
+ synchronized (clientWait) {
+ clientWait.wait();
+ }
+ */
+
+ // Read the next 1000 digits
+ data = clientRead(is, bb, data, 1000);
+
+ // Unblock the server
+ synchronized (serverWait) {
+ serverWait.notify();
+ }
+
+ // Read to the end
+ clientRead(is, bb, data, 100000);
+
+ socket.close();
+ }
+
+
+ private int clientRead(InputStream is, ByteBuffer bb, int data, int limit)
+ throws IOException {
+ while (data < limit) {
+ byte[] readBuffer = new byte[10];
+ byte[] dataBuffer = new byte[10];
+ int read = is.read(readBuffer);
+ if (read == -1) {
+ Assert.fail();
+ }
+ bb.put(readBuffer, 0, read);
+
+ String expected = Integer.toString(data);
+ // Short-cut In ISO-8859-1 1 char uses 1 byte
+ int len = expected.length();
+ while (bb.position() >= len) {
+ bb.flip();
+ bb.get(dataBuffer, 0, len);
+ String actual = new String(dataBuffer, 0, len, ISO_8859_1);
+ Assert.assertEquals(expected, actual);
+ data++;
+ expected = Integer.toString(data);
+ len = expected.length();
+ bb.compact();
+ }
+ }
+ return data;
+ }
+
+
+ private static final class Server implements Runnable {
+
+ private final long rootPool;
+ private final long serverSock;
+
+ public Server() throws Exception {
+ rootPool = Pool.create(0);
+
+ // Server socket
+ /*long serverSockPool = */ Pool.create(rootPool);
+ long inetAddress =
+ Address.info(null, Socket.APR_INET, 0, 0, rootPool);
+ serverSock = Socket.create(
+ Address.getInfo(inetAddress).family,
+ Socket.SOCK_STREAM,
+ Socket.APR_PROTO_TCP,
+ rootPool);
+
+ int ret = Socket.bind(serverSock, inetAddress);
+ if (ret != 0) {
+ throw new IOException("Bind failed [" + ret + "]");
+ }
+ ret = Socket.listen(serverSock, 100);
+ if (ret != 0) {
+ throw new IOException("Listen failed [" + ret + "]");
+ }
+ }
+
+
+ public int getPort() throws Exception {
+ long sa = Address.get(Socket.APR_LOCAL, serverSock);
+ Sockaddr addr = Address.getInfo(sa);
+ return addr.port;
+ }
+
+
+ @Override
+ public void run() {
+ try {
+ // Accept an incoming connection
+ long socket = Socket.accept(serverSock);
+
+ // Make socket non-blocking
+ Socket.timeoutSet(socket, 0);
+
+ boolean first = true;
+
+ int data = 0;
+ do {
+ String s = Integer.toString(data);
+ byte[] b = s.getBytes(ISO_8859_1);
+
+ int start = 0;
+ int len = b.length;
+ int written;
+
+ do {
+ written = Socket.send(socket, b, start, len);
+ if (written < 0) {
+ if (Status.APR_STATUS_IS_EAGAIN(-written)) {
+ System.out.println("EAGAIN");
+ written = 0;
+ } else {
+ System.out.println("Error code [" + -written +
"]");
+ throw new RuntimeException();
+ }
+ }
+
+ start += written;
+ len -= written;
+
+ if (written == 0 && len > 0) {
+ if (first) {
+ first = false;
+ // Stop client from blocking to free up some
+ // space so the server can write
+ synchronized (clientWait) {
+ clientWait.notify();
+ }
+ // Wait for the client
+ synchronized (serverWait) {
+ serverWait.wait();
+ }
+ }
+ }
+ } while (len > 0);
+
+ data++;
+ } while (data < 100000);
+
+ } catch (Exception e) {
+ // May need to do something here
+ e.printStackTrace();
+ }
+ }
+ }
+}
Propchange: tomcat/trunk/test/org/apache/tomcat/jni/TestSocket.java
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