1 /*
2  * libjingle
3  * Copyright 2015 Google Inc.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  *
8  *  1. Redistributions of source code must retain the above copyright notice,
9  *     this list of conditions and the following disclaimer.
10  *  2. Redistributions in binary form must reproduce the above copyright notice,
11  *     this list of conditions and the following disclaimer in the documentation
12  *     and/or other materials provided with the distribution.
13  *  3. The name of the author may not be used to endorse or promote products
14  *     derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 #include "talk/app/webrtc/java/jni/androidnetworkmonitor_jni.h"
29 
30 #include "webrtc/base/common.h"
31 #include "talk/app/webrtc/java/jni/classreferenceholder.h"
32 #include "talk/app/webrtc/java/jni/jni_helpers.h"
33 
34 namespace webrtc_jni {
35 jobject AndroidNetworkMonitor::application_context_ = nullptr;
36 
37 // static
SetAndroidContext(JNIEnv * jni,jobject context)38 void AndroidNetworkMonitor::SetAndroidContext(JNIEnv* jni, jobject context) {
39   if (application_context_) {
40     jni->DeleteGlobalRef(application_context_);
41   }
42   application_context_ = NewGlobalRef(jni, context);
43 }
44 
AndroidNetworkMonitor()45 AndroidNetworkMonitor::AndroidNetworkMonitor()
46     : j_network_monitor_class_(jni(),
47                                FindClass(jni(), "org/webrtc/NetworkMonitor")),
48       j_network_monitor_(
49           jni(),
50           jni()->CallStaticObjectMethod(
51               *j_network_monitor_class_,
52               GetStaticMethodID(
53                   jni(),
54                   *j_network_monitor_class_,
55                   "init",
56                   "(Landroid/content/Context;)Lorg/webrtc/NetworkMonitor;"),
57               application_context_)) {
58   ASSERT(application_context_ != nullptr);
59   CHECK_EXCEPTION(jni()) << "Error during NetworkMonitor.init";
60 }
61 
Start()62 void AndroidNetworkMonitor::Start() {
63   RTC_CHECK(thread_checker_.CalledOnValidThread());
64   jmethodID m =
65       GetMethodID(jni(), *j_network_monitor_class_, "startMonitoring", "(J)V");
66   jni()->CallVoidMethod(*j_network_monitor_, m, jlongFromPointer(this));
67   CHECK_EXCEPTION(jni()) << "Error during NetworkMonitor.startMonitoring";
68 }
69 
Stop()70 void AndroidNetworkMonitor::Stop() {
71   RTC_CHECK(thread_checker_.CalledOnValidThread());
72   jmethodID m =
73       GetMethodID(jni(), *j_network_monitor_class_, "stopMonitoring", "(J)V");
74   jni()->CallVoidMethod(*j_network_monitor_, m, jlongFromPointer(this));
75   CHECK_EXCEPTION(jni()) << "Error during NetworkMonitor.stopMonitoring";
76 }
77 
JOW(void,NetworkMonitor_nativeNotifyConnectionTypeChanged)78 JOW(void, NetworkMonitor_nativeNotifyConnectionTypeChanged)(
79     JNIEnv* jni, jobject j_monitor, jlong j_native_monitor) {
80   rtc::NetworkMonitorInterface* network_monitor =
81       reinterpret_cast<rtc::NetworkMonitorInterface*>(j_native_monitor);
82   network_monitor->OnNetworksChanged();
83 }
84 
85 }  // namespace webrtc_jni
86