sync/internal_api/public/sync_context_proxy.h

   1 // Copyright 2014 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 SYNC_INTERNAL_API_PUBLIC_SYNC_CONTEXT_PROXY_H_
   6 #define SYNC_INTERNAL_API_PUBLIC_SYNC_CONTEXT_PROXY_H_
   7
   8 #include "base/memory/weak_ptr.h"
   9 #include "sync/internal_api/public/base/model_type.h"
  10 #include "sync/internal_api/public/non_blocking_sync_common.h"
  11
  12 namespace syncer_v2 {
  13 class ModelTypeProcessorImpl;
  14
  15 // Interface for the datatype integration logic from non-sync threads.
  16 //
  17 // See SyncContextProxyImpl for an actual implementation.
  18 class SYNC_EXPORT_PRIVATE SyncContextProxy {
  19  public:
  20   SyncContextProxy();
  21   virtual ~SyncContextProxy();
  22
  23   // Attempts to connect a non-blocking type to the sync context.
  24   //
  25   // Must be called from the thread where the data type lives.
  26   virtual void ConnectTypeToSync(
  27       syncer::ModelType type,
  28       const DataTypeState& data_type_state,
  29       const UpdateResponseDataList& saved_pending_updates,
  30       const base::WeakPtr<ModelTypeProcessorImpl>& type_sync_proxy) = 0;
  31
  32   // Tells the syncer that we're no longer interested in syncing this type.
  33   //
  34   // Once this takes effect, the syncer can assume that it will no longer
  35   // receive commit requests for this type.  It should also stop requesting
  36   // and applying updates for this type, too.
  37   virtual void Disconnect(syncer::ModelType type) = 0;
  38
  39   // Creates a clone of this SyncContextProxy.
  40   virtual scoped_ptr<SyncContextProxy> Clone() const = 0;
  41 };
  42
  43 }  // namespace syncer
  44
  45 #endif  // SYNC_INTERNAL_API_PUBLIC_SYNC_CONTEXT_PROXY_H_