gfx/ipc/GPUProcessImpl.cpp

   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 #include "GPUProcessImpl.h"
   7 #include "mozilla/ipc/IOThreadChild.h"
   8 #include "nsXPCOM.h"
   9 #include "ProcessUtils.h"
  10
  11 #if defined(OS_WIN) && defined(MOZ_SANDBOX)
  12 #  include "mozilla/sandboxTarget.h"
  13 #elif defined(__OpenBSD__) && defined(MOZ_SANDBOX)
  14 #  include "mozilla/SandboxSettings.h"
  15 #endif
  16
  17 namespace mozilla {
  18 namespace gfx {
  19
  20 using namespace ipc;
  21
  22 GPUProcessImpl::GPUProcessImpl(ProcessId aParentPid)
  23     : ProcessChild(aParentPid) {}
  24
  25 GPUProcessImpl::~GPUProcessImpl() = default;
  26
  27 bool GPUProcessImpl::Init(int aArgc, char* aArgv[]) {
  28 #if defined(MOZ_SANDBOX) && defined(OS_WIN)
  29   mozilla::SandboxTarget::Instance()->StartSandbox();
  30 #elif defined(__OpenBSD__) && defined(MOZ_SANDBOX)
  31   StartOpenBSDSandbox(GeckoProcessType_GPU);
  32 #endif
  33   char* parentBuildID = nullptr;
  34   char* prefsHandle = nullptr;
  35   char* prefMapHandle = nullptr;
  36   char* prefsLen = nullptr;
  37   char* prefMapSize = nullptr;
  38   for (int i = 1; i < aArgc; i++) {
  39     if (!aArgv[i]) {
  40       continue;
  41     }
  42     if (strcmp(aArgv[i], "-parentBuildID") == 0) {
  43       parentBuildID = aArgv[i + 1];
  44
  45 #ifdef XP_WIN
  46     } else if (strcmp(aArgv[i], "-prefsHandle") == 0) {
  47       if (++i == aArgc) {
  48         return false;
  49       }
  50       prefsHandle = aArgv[i];
  51     } else if (strcmp(aArgv[i], "-prefMapHandle") == 0) {
  52       if (++i == aArgc) {
  53         return false;
  54       }
  55       prefMapHandle = aArgv[i];
  56 #endif
  57     } else if (strcmp(aArgv[i], "-prefsLen") == 0) {
  58       if (++i == aArgc) {
  59         return false;
  60       }
  61       prefsLen = aArgv[i];
  62     } else if (strcmp(aArgv[i], "-prefMapSize") == 0) {
  63       if (++i == aArgc) {
  64         return false;
  65       }
  66       prefMapSize = aArgv[i];
  67     }
  68   }
  69
  70   SharedPreferenceDeserializer deserializer;
  71   if (!deserializer.DeserializeFromSharedMemory(prefsHandle, prefMapHandle,
  72                                                 prefsLen, prefMapSize)) {
  73     return false;
  74   }
  75
  76   return mGPU.Init(ParentPid(), parentBuildID, IOThreadChild::message_loop(),
  77                    IOThreadChild::TakeChannel());
  78 }
  79
  80 void GPUProcessImpl::CleanUp() { NS_ShutdownXPCOM(nullptr); }
  81
  82 }  // namespace gfx
  83 }  // namespace mozilla