content/utility/utility_thread_impl.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_UTILITY_UTILITY_THREAD_IMPL_H_
   6 #define CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/compiler_specific.h"
  13 #include "base/memory/scoped_ptr.h"
  14 #include "content/child/child_thread_impl.h"
  15 #include "content/common/content_export.h"
  16 #include "content/common/process_control.mojom.h"
  17 #include "content/public/utility/utility_thread.h"
  18 #include "mojo/common/weak_binding_set.h"
  19
  20 namespace base {
  21 class FilePath;
  22 }
  23
  24 namespace content {
  25 class BlinkPlatformImpl;
  26 class UtilityBlinkPlatformImpl;
  27 class UtilityProcessControlImpl;
  28
  29 #if defined(COMPILER_MSVC)
  30 // See explanation for other RenderViewHostImpl which is the same issue.
  31 #pragma warning(push)
  32 #pragma warning(disable: 4250)
  33 #endif
  34
  35 // This class represents the background thread where the utility task runs.
  36 class UtilityThreadImpl : public UtilityThread,
  37                           public ChildThreadImpl {
  38  public:
  39   UtilityThreadImpl();
  40   // Constructor that's used when running in single process mode.
  41   explicit UtilityThreadImpl(const InProcessChildThreadParams& params);
  42   ~UtilityThreadImpl() override;
  43   void Shutdown() override;
  44
  45   void ReleaseProcessIfNeeded() override;
  46
  47  private:
  48   void Init();
  49
  50   // ChildThread implementation.
  51   bool OnControlMessageReceived(const IPC::Message& msg) override;
  52
  53   // IPC message handlers.
  54   void OnBatchModeStarted();
  55   void OnBatchModeFinished();
  56
  57 #if defined(OS_POSIX) && defined(ENABLE_PLUGINS)
  58   void OnLoadPlugins(const std::vector<base::FilePath>& plugin_paths);
  59 #endif
  60
  61   void BindProcessControlRequest(
  62       mojo::InterfaceRequest<content::ProcessControl> request);
  63
  64   // True when we're running in batch mode.
  65   bool batch_mode_;
  66
  67   scoped_ptr<UtilityBlinkPlatformImpl> blink_platform_impl_;
  68
  69   // Process control for Mojo application hosting.
  70   scoped_ptr<UtilityProcessControlImpl> process_control_;
  71
  72   // Bindings to the ProcessControl impl.
  73   mojo::WeakBindingSet<ProcessControl> process_control_bindings_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(UtilityThreadImpl);
  76 };
  77
  78 #if defined(COMPILER_MSVC)
  79 #pragma warning(pop)
  80 #endif
  81
  82 }  // namespace content
  83
  84 #endif  // CONTENT_UTILITY_UTILITY_THREAD_IMPL_H_