ppapi/nacl_irt/plugin_startup.cc

   1 // Copyright 2014 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 "base/logging.h"
   6 #include "base/synchronization/waitable_event.h"
   7 #include "base/threading/thread.h"
   8 #include "ppapi/nacl_irt/plugin_startup.h"
   9
  10 namespace ppapi {
  11 namespace {
  12
  13 int g_nacl_browser_ipc_fd = -1;
  14 int g_nacl_renderer_ipc_fd = -1;
  15
  16 base::WaitableEvent* g_shutdown_event = NULL;
  17 base::Thread* g_io_thread = NULL;
  18
  19 }  // namespace
  20
  21 void SetIPCFileDescriptors(int browser_ipc_fd, int renderer_ipc_fd) {
  22   // The initialization must be only once.
  23   DCHECK_EQ(g_nacl_browser_ipc_fd, -1);
  24   DCHECK_EQ(g_nacl_renderer_ipc_fd, -1);
  25   g_nacl_browser_ipc_fd = browser_ipc_fd;
  26   g_nacl_renderer_ipc_fd = renderer_ipc_fd;
  27 }
  28
  29 void StartUpPlugin() {
  30   // The start up must be called only once.
  31   DCHECK(!g_shutdown_event);
  32   DCHECK(!g_io_thread);
  33
  34   g_shutdown_event = new base::WaitableEvent(true, false);
  35   g_io_thread = new base::Thread("Chrome_NaClIOThread");
  36   g_io_thread->StartWithOptions(
  37       base::Thread::Options(base::MessageLoop::TYPE_IO, 0));
  38 }
  39
  40 int GetBrowserIPCFileDescriptor() {
  41   // The descriptor must be initialized in advance.
  42   DCHECK_NE(g_nacl_browser_ipc_fd, -1);
  43   return g_nacl_browser_ipc_fd;
  44 }
  45
  46 int GetRendererIPCFileDescriptor() {
  47   // The descriptor must be initialized in advance.
  48   DCHECK_NE(g_nacl_renderer_ipc_fd, -1);
  49   return g_nacl_renderer_ipc_fd;
  50 }
  51
  52 base::WaitableEvent* GetShutdownEvent() {
  53   // The shutdown event must be initialized in advance.
  54   DCHECK(g_shutdown_event);
  55   return g_shutdown_event;
  56 }
  57
  58 base::Thread* GetIOThread() {
  59   // The IOThread must be initialized in advance.
  60   DCHECK(g_io_thread);
  61   return g_io_thread;
  62 }
  63
  64 }  // namespace ppapi