Add network tester client [android] to be able to test mobile networks in terms of packet size and sending rates.

BUG=webrtc:7426

Review-Url: https://codereview.webrtc.org/2787863002
Cr-Commit-Position: refs/heads/master@{#17789}

webrtc/tools/network_tester/BUILD.gn

@@ -112,3 +112,57 @@ if (rtc_enable_protobuf) {
     }
   }
 }
+
+if (is_android) {
+  android_apk("NetworkTesterMobile") {
+    testonly = true
+    apk_name = "NetworkTesterMobile"
+    android_manifest = "androidapp/AndroidManifest.xml"
+
+    deps = [
+      ":NetworkTesterMobile_javalib",
+      ":NetworkTesterMobile_resources",
+      "//base:base_java",
+      "//webrtc/base:base_java",
+    ]
+
+    shared_libraries = [ "//webrtc/tools/network_tester:network_tester_so" ]
+  }
+
+  android_library("NetworkTesterMobile_javalib") {
+    testonly = true
+    android_manifest = "androidapp/AndroidManifest.xml"
+
+    java_files = [
+      "androidapp/src/com/google/media/networktester/MainActivity.java",
+      "androidapp/src/com/google/media/networktester/NetworkTester.java",
+    ]
+
+    deps = [
+      ":NetworkTesterMobile_resources",
+      "//webrtc/base:base_java",
+    ]
+  }
+
+  android_resources("NetworkTesterMobile_resources") {
+    testonly = true
+    resource_dirs = [ "androidapp/res" ]
+    custom_package = "com.google.media.networktester"
+  }
+
+  rtc_shared_library("network_tester_so") {
+    sources = [
+      "jni.cpp",
+    ]
+
+    deps = [
+      ":network_tester",
+      "../../system_wrappers:field_trial_default",
+    ]
+
+    suppressed_configs += [ "//build/config/android:hide_all_but_jni_onload" ]
+    configs += [ "//build/config/android:hide_all_but_jni" ]
+
+    output_extension = "so"
+  }
+}

webrtc/tools/network_tester/androidapp/AndroidManifest.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.google.media.networktester" >
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-sdk android:minSdkVersion="17"
+    android:targetSdkVersion="24"
+    android:maxSdkVersion="24" />
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme" >
+        <activity android:name=".MainActivity" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>

webrtc/tools/network_tester/androidapp/res/layout/activity_main.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/activity_main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingStart="@dimen/activity_horizontal_margin"
+    android:paddingEnd="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    tools:context="com.google.media.networktester.MainActivity">
+    <Button
+      android:text="@string/start_test"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_alignParentTop="true"
+      android:layout_alignParentStart="true"
+      android:id="@+id/start_button"/>
+    <Button
+      android:text="@string/interrupt_test"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_alignParentTop="true"
+      android:layout_toEndOf="@+id/start_button"
+      android:id="@+id/stop_button"/>
+
+</RelativeLayout>

webrtc/tools/network_tester/androidapp/res/values-v17/styles.xml

@@ -0,0 +1,8 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="android:Theme.Holo.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+    </style>
+
+</resources>

webrtc/tools/network_tester/androidapp/res/values-w820dp/dimens.xml

@@ -0,0 +1,6 @@
+<resources>
+    <!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+    <dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>

webrtc/tools/network_tester/androidapp/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

webrtc/tools/network_tester/androidapp/res/values/dimens.xml

@@ -0,0 +1,5 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>

webrtc/tools/network_tester/androidapp/res/values/strings.xml

@@ -0,0 +1,6 @@
+<resources>
+    <string name="app_name">NetworkTester</string>
+    <string name="start_test">Start test</string>
+    <string name="interrupt_test">Interrupt test</string>
+    <string name="test_status">Status</string>
+</resources>

webrtc/tools/network_tester/androidapp/src/com/google/media/networktester/MainActivity.java

@@ -0,0 +1,66 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+package com.google.media.networktester;
+
+import android.app.Activity;
+import android.content.Context;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.ParcelFileDescriptor;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.WindowManager;
+import android.widget.Button;
+
+public class MainActivity extends Activity {
+  Button startButton;
+  Button stopButton;
+  NetworkTester networkTester = null;
+  Handler mainThreadHandler;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.activity_main);
+    startButton = (Button) findViewById(R.id.start_button);
+    startButton.setOnClickListener(new OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        startTest();
+      }
+    });
+    stopButton = (Button) findViewById(R.id.stop_button);
+    stopButton.setOnClickListener(new OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        stopTest();
+      }
+    });
+    mainThreadHandler = new Handler();
+    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+  }
+
+  private void startTest() {
+    if (networkTester == null) {
+      networkTester = new NetworkTester();
+      networkTester.start();
+    }
+  }
+
+  private void stopTest() {
+    if (networkTester != null) {
+      networkTester.interrupt();
+      networkTester = null;
+    }
+  }
+}

webrtc/tools/network_tester/androidapp/src/com/google/media/networktester/NetworkTester.java

@@ -0,0 +1,32 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+package com.google.media.networktester;
+
+public class NetworkTester extends Thread {
+  private native static long CreateTestController();
+  private native static void TestControllerConnect(long testController);
+  private native static void TestControllerRun(long testController);
+  private native static boolean TestControllerIsDone(long testController);
+  private native static void DestroyTestController(long testController);
+  static {
+    System.loadLibrary("network_tester_so");
+  }
+
+  @Override
+  public void run() {
+    final long testController = CreateTestController();
+    TestControllerConnect(testController);
+    while (!Thread.interrupted() && !TestControllerIsDone(testController)) {
+      TestControllerRun(testController);
+    }
+    DestroyTestController(testController);
+  }
+}

webrtc/tools/network_tester/jni.cpp

@@ -0,0 +1,63 @@
+/*
+ *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include <jni.h>
+#undef JNIEXPORT
+#define JNIEXPORT __attribute__((visibility("default")))
+#include <string>
+
+#include "webrtc/tools/network_tester/test_controller.h"
+
+extern "C" JNIEXPORT jlong JNICALL
+Java_com_google_media_networktester_NetworkTester_CreateTestController(
+    JNIEnv* jni,
+    jclass) {
+  return reinterpret_cast<intptr_t>(new webrtc::TestController(
+      0, 0, "/mnt/sdcard/network_tester_client_config.dat",
+      "/mnt/sdcard/network_tester_client_packet_log.dat"));
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_media_networktester_NetworkTester_TestControllerConnect(
+    JNIEnv* jni,
+    jclass,
+    jlong native_pointer) {
+  reinterpret_cast<webrtc::TestController*>(native_pointer)
+      ->SendConnectTo("85.195.237.107", 9090);
+}
+
+extern "C" JNIEXPORT bool JNICALL
+Java_com_google_media_networktester_NetworkTester_TestControllerIsDone(
+    JNIEnv* jni,
+    jclass,
+    jlong native_pointer) {
+  return reinterpret_cast<webrtc::TestController*>(native_pointer)
+      ->IsTestDone();
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_media_networktester_NetworkTester_TestControllerRun(
+    JNIEnv* jni,
+    jclass,
+    jlong native_pointer) {
+  reinterpret_cast<webrtc::TestController*>(native_pointer)->Run();
+}
+
+extern "C" JNIEXPORT void JNICALL
+Java_com_google_media_networktester_NetworkTester_DestroyTestController(
+    JNIEnv* jni,
+    jclass,
+    jlong native_pointer) {
+  webrtc::TestController* test_controller =
+      reinterpret_cast<webrtc::TestController*>(native_pointer);
+  if (test_controller) {
+    delete test_controller;
+  }
+}

webrtc/tools/network_tester/test_controller.cc

@@ -16,7 +16,8 @@ TestController::TestController(int min_port,
                                int max_port,
                                const std::string& config_file_path,
                                const std::string& log_file_path)
-    : config_file_path_(config_file_path),
+    : socket_factory_(rtc::ThreadManager::Instance()->WrapCurrentThread()),
+      config_file_path_(config_file_path),
       packet_logger_(log_file_path),
       local_test_done_(false),
       remote_test_done_(false) {
@@ -101,6 +102,9 @@ void TestController::OnReadPacket(rtc::AsyncPacketSocket* socket,
     case NetworkTesterPacket::TEST_START: {
       packet_sender_.reset(new PacketSender(this, config_file_path_));
       packet_sender_->StartSending();
+      rtc::CritScope scoped_lock(&local_test_done_lock_);
+      local_test_done_ = false;
+      remote_test_done_ = false;
       break;
     }
     case NetworkTesterPacket::TEST_DATA: {