[Cronet] Add support to run quic_simple_server

components/cronet/android/test/quic_test_server.cc

Index: components/cronet/android/test/quic_test_server.cc
diff --git a/components/cronet/android/test/quic_test_server.cc b/components/cronet/android/test/quic_test_server.cc
new file mode 100644
index 0000000000000000000000000000000000000000..04dfd54984061ba899e6e68a37157102014acf44
--- /dev/null
+++ b/components/cronet/android/test/quic_test_server.cc
@@ -0,0 +1,86 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "quic_test_server.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "base/bind.h"
+#include "base/files/file_path.h"
+#include "base/threading/thread.h"
+#include "jni/QuicTestServer_jni.h"
+#include "net/base/ip_endpoint.h"
+#include "net/base/net_util.h"
+#include "net/tools/quic/quic_in_memory_cache.h"
+#include "net/tools/quic/quic_simple_server.h"
+
+namespace cronet {
+
+namespace {
+
+static const char kServerHost[] = "127.0.0.1";
+static const int kServerPort = 6121;
+
+base::Thread* g_quic_server_thread = nullptr;
+net::tools::QuicSimpleServer* g_quic_server = nullptr;
+
+void ServeFilesFromDirectory(const base::FilePath& directory) {
+  DCHECK(g_quic_server_thread->task_runner()->BelongsToCurrentThread());
+  DCHECK(!g_quic_server);
+  base::FilePath file_dir = directory.Append("quic_data");
+  net::tools::QuicInMemoryCache::GetInstance()->InitializeFromDirectory(
+      file_dir.value());
+  net::IPAddressNumber ip;
+  DCHECK(net::ParseIPLiteralToNumber(kServerHost, &ip));
+  net::QuicConfig config;
+  g_quic_server =
+      new net::tools::QuicSimpleServer(config, net::QuicSupportedVersions());
+  DCHECK(g_quic_server->Listen(net::IPEndPoint(ip, kServerPort)) >= 0) <<
+      "Quic server fails to start";
+}
+
+void ShutdownOnServerThread() {
+  DCHECK(g_quic_server_thread->task_runner()->BelongsToCurrentThread());
+  g_quic_server->Shutdown();
+  delete g_quic_server;
+}
+
+}  // namespace
+
+// Quic server is currently hardcoded to run on port 6121 of the localhost on
+// the device.
+void StartQuicTestServer(JNIEnv* env,
+                         jclass jcaller,
+                         jstring jtest_files_root) {
+  DCHECK(!g_quic_server_thread);
+  g_quic_server_thread = new base::Thread("quic server thread");
+  base::Thread::Options thread_options;
+  thread_options.message_loop_type = base::MessageLoop::TYPE_IO;
+  DCHECK(g_quic_server_thread->StartWithOptions(thread_options));
+  base::FilePath test_files_root(
+      base::android::ConvertJavaStringToUTF8(env, jtest_files_root));
+  g_quic_server_thread->task_runner()->PostTask(
+      FROM_HERE, base::Bind(&ServeFilesFromDirectory, test_files_root));
+}
+
+void ShutdownQuicTestServer(JNIEnv* env, jclass jcaller) {
+  DCHECK(!g_quic_server_thread->task_runner()->BelongsToCurrentThread());
+  g_quic_server_thread->task_runner()->PostTask(
+      FROM_HERE, base::Bind(&ShutdownOnServerThread));
+  delete g_quic_server_thread;
+}
+
+jstring GetServerHost(JNIEnv* env, jclass jcaller) {
+  return base::android::ConvertUTF8ToJavaString(env, kServerHost).Release();
+}
+
+int GetServerPort(JNIEnv* env, jclass jcaller) {
+  return kServerPort;
+}
+
+bool RegisterQuicTestServer(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+}  // namespace cronet