Examples with MPSequence io.questdb.mp.MPSequence used on opensource projects

Example 1 with MPSequence

use of io.questdb.mp.MPSequence in project questdb by bluestreak01.

the class IODispatcherTest method testTwoThreadsSendTwoThreadsRead.

@Test
public // dispatcher or Http parser.
void testTwoThreadsSendTwoThreadsRead() throws Exception {
    LOG.info().$("started testSendHttpGet").$();
    final String request = "GET /status?x=1&a=%26b&c&d=x HTTP/1.1\r\n" + "Host: localhost:9000\r\n" + "Connection: keep-alive\r\n" + "Cache-Control: max-age=0\r\n" + "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\r\n" + "User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.48 Safari/537.36\r\n" + "Accept-Encoding: gzip,deflate,sdch\r\n" + "Accept-Language: en-US,en;q=0.8\r\n" + "Cookie: textwrapon=false; textautoformat=false; wysiwyg=textarea\r\n" + "\r\n";
    // the difference between request and expected is url encoding (and ':' padding, which can easily be fixed)
    final String expected = "GET /status?x=1&a=&b&c&d=x HTTP/1.1\r\n" + "host:localhost:9000\r\n" + "connection:keep-alive\r\n" + "cache-control:max-age=0\r\n" + "accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\r\n" + "user-agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.48 Safari/537.36\r\n" + "accept-encoding:gzip,deflate,sdch\r\n" + "accept-language:en-US,en;q=0.8\r\n" + "cookie:textwrapon=false; textautoformat=false; wysiwyg=textarea\r\n" + "\r\n";
    final int N = 100;
    final int serverThreadCount = 2;
    final int senderCount = 2;
    assertMemoryLeak(() -> {
        HttpServerConfiguration httpServerConfiguration = new DefaultHttpServerConfiguration();
        final NetworkFacade nf = NetworkFacadeImpl.INSTANCE;
        final AtomicInteger requestsReceived = new AtomicInteger();
        final AtomicBoolean finished = new AtomicBoolean(false);
        final SOCountDownLatch senderHalt = new SOCountDownLatch(senderCount);
        try (IODispatcher<HttpConnectionContext> dispatcher = IODispatchers.create(new DefaultIODispatcherConfiguration(), (fd, dispatcher1) -> new HttpConnectionContext(httpServerConfiguration.getHttpContextConfiguration()).of(fd, dispatcher1))) {
            // server will publish status of each request to this queue
            final RingQueue<Status> queue = new RingQueue<>(Status::new, 1024);
            final MPSequence pubSeq = new MPSequence(queue.getCycle());
            SCSequence subSeq = new SCSequence();
            pubSeq.then(subSeq).then(pubSeq);
            final AtomicBoolean serverRunning = new AtomicBoolean(true);
            final SOCountDownLatch serverHaltLatch = new SOCountDownLatch(serverThreadCount);
            try {
                for (int j = 0; j < serverThreadCount; j++) {
                    new Thread(() -> {
                        final StringSink sink = new StringSink();
                        final long responseBuf = Unsafe.malloc(32, MemoryTag.NATIVE_DEFAULT);
                        Unsafe.getUnsafe().putByte(responseBuf, (byte) 'A');
                        final HttpRequestProcessor processor = new HttpRequestProcessor() {

                            @Override
                            public void onHeadersReady(HttpConnectionContext context) {
                                HttpRequestHeader headers = context.getRequestHeader();
                                sink.clear();
                                sink.put(headers.getMethodLine());
                                sink.put("\r\n");
                                ObjList<CharSequence> headerNames = headers.getHeaderNames();
                                for (int i = 0, n = headerNames.size(); i < n; i++) {
                                    sink.put(headerNames.getQuick(i)).put(':');
                                    sink.put(headers.getHeader(headerNames.getQuick(i)));
                                    sink.put("\r\n");
                                }
                                sink.put("\r\n");
                                boolean result;
                                try {
                                    TestUtils.assertEquals(expected, sink);
                                    result = true;
                                } catch (Exception e) {
                                    result = false;
                                }
                                while (true) {
                                    long cursor = pubSeq.next();
                                    if (cursor < 0) {
                                        continue;
                                    }
                                    queue.get(cursor).valid = result;
                                    pubSeq.done(cursor);
                                    break;
                                }
                                requestsReceived.incrementAndGet();
                                nf.send(context.getFd(), responseBuf, 1);
                            }
                        };
                        HttpRequestProcessorSelector selector = new HttpRequestProcessorSelector() {

                            @Override
                            public HttpRequestProcessor select(CharSequence url) {
                                return null;
                            }

                            @Override
                            public HttpRequestProcessor getDefaultProcessor() {
                                return processor;
                            }

                            @Override
                            public void close() {
                            }
                        };
                        while (serverRunning.get()) {
                            dispatcher.run(0);
                            dispatcher.processIOQueue((operation, context) -> context.handleClientOperation(operation, selector, EmptyRescheduleContext));
                        }
                        Unsafe.free(responseBuf, 32, MemoryTag.NATIVE_DEFAULT);
                        serverHaltLatch.countDown();
                    }).start();
                }
                AtomicInteger completedCount = new AtomicInteger();
                for (int j = 0; j < senderCount; j++) {
                    int k = j;
                    new Thread(() -> {
                        long sockAddr = Net.sockaddr("127.0.0.1", 9001);
                        try {
                            for (int i = 0; i < N && !finished.get(); i++) {
                                long fd = Net.socketTcp(true);
                                try {
                                    TestUtils.assertConnect(fd, sockAddr);
                                    int len = request.length();
                                    long buffer = TestUtils.toMemory(request);
                                    try {
                                        Assert.assertEquals(len, Net.send(fd, buffer, len));
                                        Assert.assertEquals("fd=" + fd + ", i=" + i, 1, Net.recv(fd, buffer, 1));
                                        LOG.info().$("i=").$(i).$(", j=").$(k).$();
                                        Assert.assertEquals('A', Unsafe.getUnsafe().getByte(buffer));
                                    } finally {
                                        Unsafe.free(buffer, len, MemoryTag.NATIVE_DEFAULT);
                                    }
                                } finally {
                                    Net.close(fd);
                                }
                            }
                        } finally {
                            completedCount.incrementAndGet();
                            Net.freeSockAddr(sockAddr);
                            senderHalt.countDown();
                        }
                    }).start();
                }
                int receiveCount = 0;
                while (receiveCount < N * senderCount) {
                    long cursor = subSeq.next();
                    if (cursor < 0) {
                        if (cursor == -1 && completedCount.get() == senderCount) {
                            Assert.fail("Not all requests successful, test failed, see previous failures");
                            break;
                        }
                        Thread.yield();
                        continue;
                    }
                    boolean valid = queue.get(cursor).valid;
                    subSeq.done(cursor);
                    Assert.assertTrue(valid);
                    receiveCount++;
                }
            } catch (Throwable e) {
                e.printStackTrace();
                throw e;
            } finally {
                serverRunning.set(false);
                serverHaltLatch.await();
            }
        } catch (Throwable e) {
            e.printStackTrace();
            throw e;
        } finally {
            finished.set(true);
            senderHalt.await();
        }
        Assert.assertEquals(N * senderCount, requestsReceived.get());
    });
}