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