1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "content/browser/android/child_process_launcher_android.h"
6
7 #include "base/android/jni_android.h"
8 #include "base/android/jni_array.h"
9 #include "base/logging.h"
10 #include "base/memory/scoped_ptr.h"
11 #include "content/browser/media/android/browser_media_player_manager.h"
12 #include "content/browser/renderer_host/compositor_impl_android.h"
13 #include "content/browser/renderer_host/render_view_host_impl.h"
14 #include "content/public/browser/browser_thread.h"
15 #include "content/public/browser/render_process_host.h"
16 #include "content/public/common/content_switches.h"
17 #include "jni/ChildProcessLauncher_jni.h"
18 #include "media/base/android/media_player_android.h"
19 #include "ui/gl/android/scoped_java_surface.h"
20
21 using base::android::AttachCurrentThread;
22 using base::android::ToJavaArrayOfStrings;
23 using base::android::ScopedJavaGlobalRef;
24 using base::android::ScopedJavaLocalRef;
25 using content::StartChildProcessCallback;
26
27 namespace content {
28
29 namespace {
30
31 // Pass a java surface object to the MediaPlayerAndroid object
32 // identified by render process handle, render view ID and player ID.
SetSurfacePeer(const base::android::JavaRef<jobject> & surface,base::ProcessHandle render_process_handle,int render_view_id,int player_id)33 static void SetSurfacePeer(
34 const base::android::JavaRef<jobject>& surface,
35 base::ProcessHandle render_process_handle,
36 int render_view_id,
37 int player_id) {
38 int renderer_id = 0;
39 RenderProcessHost::iterator it = RenderProcessHost::AllHostsIterator();
40 while (!it.IsAtEnd()) {
41 if (it.GetCurrentValue()->GetHandle() == render_process_handle) {
42 renderer_id = it.GetCurrentValue()->GetID();
43 break;
44 }
45 it.Advance();
46 }
47
48 if (renderer_id) {
49 RenderViewHostImpl* host = RenderViewHostImpl::FromID(
50 renderer_id, render_view_id);
51 if (host) {
52 media::MediaPlayerAndroid* player =
53 host->media_player_manager()->GetPlayer(player_id);
54 if (player &&
55 player != host->media_player_manager()->GetFullscreenPlayer()) {
56 gfx::ScopedJavaSurface scoped_surface(surface);
57 player->SetVideoSurface(scoped_surface.Pass());
58 }
59 }
60 }
61 }
62
63 } // anonymous namespace
64
65 // Called from ChildProcessLauncher.java when the ChildProcess was
66 // started.
67 // |client_context| is the pointer to StartChildProcessCallback which was
68 // passed in from StartChildProcess.
69 // |handle| is the processID of the child process as originated in Java, 0 if
70 // the ChildProcess could not be created.
OnChildProcessStarted(JNIEnv *,jclass,jlong client_context,jint handle)71 static void OnChildProcessStarted(JNIEnv*,
72 jclass,
73 jlong client_context,
74 jint handle) {
75 StartChildProcessCallback* callback =
76 reinterpret_cast<StartChildProcessCallback*>(client_context);
77 if (handle)
78 callback->Run(static_cast<base::ProcessHandle>(handle));
79 delete callback;
80 }
81
StartChildProcess(const CommandLine::StringVector & argv,const std::vector<content::FileDescriptorInfo> & files_to_register,const StartChildProcessCallback & callback)82 void StartChildProcess(
83 const CommandLine::StringVector& argv,
84 const std::vector<content::FileDescriptorInfo>& files_to_register,
85 const StartChildProcessCallback& callback) {
86 JNIEnv* env = AttachCurrentThread();
87 DCHECK(env);
88
89 // Create the Command line String[]
90 ScopedJavaLocalRef<jobjectArray> j_argv = ToJavaArrayOfStrings(env, argv);
91
92 size_t file_count = files_to_register.size();
93 DCHECK(file_count > 0);
94
95 ScopedJavaLocalRef<jintArray> j_file_ids(env, env->NewIntArray(file_count));
96 base::android::CheckException(env);
97 jint* file_ids = env->GetIntArrayElements(j_file_ids.obj(), NULL);
98 base::android::CheckException(env);
99 ScopedJavaLocalRef<jintArray> j_file_fds(env, env->NewIntArray(file_count));
100 base::android::CheckException(env);
101 jint* file_fds = env->GetIntArrayElements(j_file_fds.obj(), NULL);
102 base::android::CheckException(env);
103 ScopedJavaLocalRef<jbooleanArray> j_file_auto_close(
104 env, env->NewBooleanArray(file_count));
105 base::android::CheckException(env);
106 jboolean* file_auto_close =
107 env->GetBooleanArrayElements(j_file_auto_close.obj(), NULL);
108 base::android::CheckException(env);
109 for (size_t i = 0; i < file_count; ++i) {
110 const content::FileDescriptorInfo& fd_info = files_to_register[i];
111 file_ids[i] = fd_info.id;
112 file_fds[i] = fd_info.fd.fd;
113 file_auto_close[i] = fd_info.fd.auto_close;
114 }
115 env->ReleaseIntArrayElements(j_file_ids.obj(), file_ids, 0);
116 env->ReleaseIntArrayElements(j_file_fds.obj(), file_fds, 0);
117 env->ReleaseBooleanArrayElements(j_file_auto_close.obj(), file_auto_close, 0);
118
119 Java_ChildProcessLauncher_start(env,
120 base::android::GetApplicationContext(),
121 j_argv.obj(),
122 j_file_ids.obj(),
123 j_file_fds.obj(),
124 j_file_auto_close.obj(),
125 reinterpret_cast<intptr_t>(new StartChildProcessCallback(callback)));
126 }
127
StopChildProcess(base::ProcessHandle handle)128 void StopChildProcess(base::ProcessHandle handle) {
129 JNIEnv* env = AttachCurrentThread();
130 DCHECK(env);
131 Java_ChildProcessLauncher_stop(env, static_cast<jint>(handle));
132 }
133
IsChildProcessOomProtected(base::ProcessHandle handle)134 bool IsChildProcessOomProtected(base::ProcessHandle handle) {
135 JNIEnv* env = AttachCurrentThread();
136 DCHECK(env);
137 return Java_ChildProcessLauncher_isOomProtected(env,
138 static_cast<jint>(handle));
139 }
140
EstablishSurfacePeer(JNIEnv * env,jclass clazz,jint pid,jobject surface,jint primary_id,jint secondary_id)141 void EstablishSurfacePeer(
142 JNIEnv* env, jclass clazz,
143 jint pid, jobject surface, jint primary_id, jint secondary_id) {
144 ScopedJavaGlobalRef<jobject> jsurface;
145 jsurface.Reset(env, surface);
146 if (jsurface.is_null())
147 return;
148
149 DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::UI));
150 BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, base::Bind(
151 &SetSurfacePeer, jsurface, pid, primary_id, secondary_id));
152 }
153
GetViewSurface(JNIEnv * env,jclass clazz,jint surface_id)154 jobject GetViewSurface(JNIEnv* env, jclass clazz, jint surface_id) {
155 // This is a synchronous call from the GPU process and is expected to be
156 // handled on a binder thread. Handling this on the UI thread will lead
157 // to deadlocks.
158 DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::UI));
159 return CompositorImpl::GetSurface(surface_id);
160 }
161
IsSingleProcess(JNIEnv * env,jclass clazz)162 jboolean IsSingleProcess(JNIEnv* env, jclass clazz) {
163 return CommandLine::ForCurrentProcess()->HasSwitch(switches::kSingleProcess);
164 }
165
RegisterChildProcessLauncher(JNIEnv * env)166 bool RegisterChildProcessLauncher(JNIEnv* env) {
167 return RegisterNativesImpl(env);
168 }
169
170 } // namespace content
171