1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #include "VRProcessChild.h"
8
9 #include "mozilla/BackgroundHangMonitor.h"
10 #include "mozilla/ipc/IOThreadChild.h"
11 #include "ProcessUtils.h"
12
13 using namespace mozilla;
14 using namespace mozilla::gfx;
15 using mozilla::ipc::IOThreadChild;
16
17 StaticRefPtr<VRParent> sVRParent;
18
VRProcessChild(ProcessId aParentPid)19 VRProcessChild::VRProcessChild(ProcessId aParentPid)
20 : ProcessChild(aParentPid) {}
21
~VRProcessChild()22 VRProcessChild::~VRProcessChild() { sVRParent = nullptr; }
23
24 /*static*/
GetVRParent()25 VRParent* VRProcessChild::GetVRParent() {
26 MOZ_ASSERT(sVRParent);
27 return sVRParent;
28 }
29
Init(int aArgc,char * aArgv[])30 bool VRProcessChild::Init(int aArgc, char* aArgv[]) {
31 char* parentBuildID = nullptr;
32 char* prefsHandle = nullptr;
33 char* prefMapHandle = nullptr;
34 char* prefsLen = nullptr;
35 char* prefMapSize = nullptr;
36 for (int i = 1; i < aArgc; i++) {
37 if (!aArgv[i]) {
38 continue;
39 }
40 if (strcmp(aArgv[i], "-parentBuildID") == 0) {
41 parentBuildID = aArgv[i + 1];
42
43 #ifdef XP_WIN
44 } else if (strcmp(aArgv[i], "-prefsHandle") == 0) {
45 if (++i == aArgc) {
46 return false;
47 }
48 prefsHandle = aArgv[i];
49 } else if (strcmp(aArgv[i], "-prefMapHandle") == 0) {
50 if (++i == aArgc) {
51 return false;
52 }
53 prefMapHandle = aArgv[i];
54 #endif
55 } else if (strcmp(aArgv[i], "-prefsLen") == 0) {
56 if (++i == aArgc) {
57 return false;
58 }
59 prefsLen = aArgv[i];
60 } else if (strcmp(aArgv[i], "-prefMapSize") == 0) {
61 if (++i == aArgc) {
62 return false;
63 }
64 prefMapSize = aArgv[i];
65 }
66 }
67
68 ipc::SharedPreferenceDeserializer deserializer;
69 if (!deserializer.DeserializeFromSharedMemory(prefsHandle, prefMapHandle,
70 prefsLen, prefMapSize)) {
71 return false;
72 }
73
74 sVRParent = new VRParent();
75 sVRParent->Init(ParentPid(), parentBuildID, IOThreadChild::message_loop(),
76 IOThreadChild::TakeChannel());
77
78 return true;
79 }
80
CleanUp()81 void VRProcessChild::CleanUp() {
82 sVRParent = nullptr;
83 NS_ShutdownXPCOM(nullptr);
84 }
85