content/browser/renderer_host/render_sandbox_host_linux.h

   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 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_SANDBOX_HOST_LINUX_H_
   6 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_SANDBOX_HOST_LINUX_H_
   7
   8 #include <string>
   9
  10 #include "base/logging.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/threading/simple_thread.h"
  13 #include "content/browser/renderer_host/sandbox_ipc_linux.h"
  14 #include "content/common/content_export.h"
  15
  16 namespace base {
  17 template <typename T> struct DefaultSingletonTraits;
  18 }
  19
  20 namespace content {
  21
  22 // This is a singleton object which handles sandbox requests from the
  23 // renderers.
  24 class CONTENT_EXPORT RenderSandboxHostLinux {
  25  public:
  26   // Returns the singleton instance.
  27   static RenderSandboxHostLinux* GetInstance();
  28
  29   // Get the file descriptor which renderers should be given in order to signal
  30   // crashes to the browser.
  31   int GetRendererSocket() const {
  32     DCHECK(initialized_);
  33     return renderer_socket_;
  34   }
  35   void Init();
  36
  37  private:
  38   friend struct base::DefaultSingletonTraits<RenderSandboxHostLinux>;
  39   // This object must be constructed on the main thread.
  40   RenderSandboxHostLinux();
  41   ~RenderSandboxHostLinux();
  42
  43   bool ShutdownIPCChannel();
  44
  45   // Whether Init() has been called yet.
  46   bool initialized_;
  47
  48   int renderer_socket_;
  49   int childs_lifeline_fd_;
  50
  51   scoped_ptr<SandboxIPCHandler> ipc_handler_;
  52   scoped_ptr<base::DelegateSimpleThread> ipc_thread_;
  53
  54   DISALLOW_COPY_AND_ASSIGN(RenderSandboxHostLinux);
  55 };
  56
  57 }  // namespace content
  58
  59 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_SANDBOX_HOST_LINUX_H_