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
  12 namespace content {
  13
  14 class BackgroundSyncManager;
  15 class ServiceWorkerContextWrapper;
  16
  17 // One instance of this exists per StoragePartition, and services multiple
  18 // child processes/origins. Most logic is delegated to the owned
  19 // BackgroundSyncManager instance, which is only accessed on the IO
  20 // thread.
  21 // TODO(jkarlin): Make a public/ BackgroundSyncContext.
  22 class CONTENT_EXPORT BackgroundSyncContextImpl
  23     : public base::RefCountedThreadSafe<BackgroundSyncContextImpl> {
  24  public:
  25   BackgroundSyncContextImpl();
  26
  27   // Init and Shutdown are for use on the UI thread when the profile,
  28   // storagepartition is being setup and torn down.
  29   void Init(const scoped_refptr<ServiceWorkerContextWrapper>& context);
  30   void Shutdown();
  31
  32   // Only callable on the IO thread.
  33   BackgroundSyncManager* background_sync_manager() const;
  34
  35  private:
  36   friend class base::RefCountedThreadSafe<BackgroundSyncContextImpl>;
  37
  38   ~BackgroundSyncContextImpl();
  39
  40   void CreateBackgroundSyncManager(
  41       const scoped_refptr<ServiceWorkerContextWrapper>& context);
  42
  43   void ShutdownOnIO();
  44
  45   // Only accessed on the IO thread.
  46   scoped_ptr<BackgroundSyncManager> background_sync_manager_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(BackgroundSyncContextImpl);
  49 };
  50
  51 }  // namespace content
  52
  53 #endif  // CONTENT_BROWSER_BACKGROUND_SYNC_BACKGROUND_SYNC_CONTEXT_IMPL_H_