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