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 "content/common/content_export.h"
  12
  13 template <typename T> struct DefaultSingletonTraits;
  14
  15 namespace content {
  16
  17 // This is a singleton object which handles sandbox requests from the
  18 // renderers.
  19 class CONTENT_EXPORT RenderSandboxHostLinux {
  20  public:
  21   // Returns the singleton instance.
  22   static RenderSandboxHostLinux* GetInstance();
  23
  24   // Get the file descriptor which renderers should be given in order to signal
  25   // crashes to the browser.
  26   int GetRendererSocket() const {
  27     DCHECK(initialized_);
  28     return renderer_socket_;
  29   }
  30   pid_t pid() const {
  31     DCHECK(initialized_);
  32     return pid_;
  33   }
  34   void Init(const std::string& sandbox_path);
  35
  36  private:
  37   friend struct DefaultSingletonTraits<RenderSandboxHostLinux>;
  38   // This object must be constructed on the main thread.
  39   RenderSandboxHostLinux();
  40   ~RenderSandboxHostLinux();
  41
  42   // Whether Init() has been called yet.
  43   bool initialized_;
  44
  45   int renderer_socket_;
  46   int childs_lifeline_fd_;
  47   pid_t pid_;
  48
  49   DISALLOW_COPY_AND_ASSIGN(RenderSandboxHostLinux);
  50 };
  51
  52 }  // namespace content
  53
  54 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_SANDBOX_HOST_LINUX_H_