content/browser/background_sync/background_sync_context_impl.h

   1 // Copyright 2015 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_BACKGROUND_SYNC_BACKGROUND_SYNC_CONTEXT_IMPL_H_
   6 #define CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_CONTEXT_IMPL_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "content/common/content_export.h"
  11 #include "content/public/browser/background_sync_context.h"
  12
  13 namespace content {
  14
  15 class BackgroundSyncManager;
  16 class ServiceWorkerContextWrapper;
  17
  18 // Implements the BackgroundSyncContext. One instance of this exists per
  19 // StoragePartition, and services multiple child processes/origins. Most logic
  20 // is delegated to the owned BackgroundSyncManager instance, which is only
  21 // accessed on the IO thread.
  22 class CONTENT_EXPORT BackgroundSyncContextImpl : public BackgroundSyncContext {
  23  public:
  24   BackgroundSyncContextImpl();
  25
  26   // Init and Shutdown are for use on the UI thread when the
  27   // StoragePartition is being setup and torn down.
  28   void Init(const scoped_refptr<ServiceWorkerContextWrapper>& context);
  29   void Shutdown();
  30
  31   // Only callable on the IO thread.
  32   BackgroundSyncManager* background_sync_manager() const override;
  33
  34  protected:
  35   ~BackgroundSyncContextImpl() override;
  36
  37  private:
  38   void CreateBackgroundSyncManager(
  39       const scoped_refptr<ServiceWorkerContextWrapper>& context);
  40
  41   void ShutdownOnIO();
  42
  43   // Only accessed on the IO thread.
  44   scoped_ptr<BackgroundSyncManager> background_sync_manager_;
  45
  46   DISALLOW_COPY_AND_ASSIGN(BackgroundSyncContextImpl);
  47 };
  48
  49 }  // namespace content
  50
  51 #endif  // CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_CONTEXT_IMPL_H_