| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SYNC_INTERNAL_API_PUBLIC_SYNC_CONTEXT_H_ |
| #define SYNC_INTERNAL_API_PUBLIC_SYNC_CONTEXT_H_ |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "sync/internal_api/public/base/model_type.h" |
| |
| namespace syncer_v2 { |
| struct ActivationContext; |
| |
| // An interface of the core parts of sync. |
| // |
| // In theory, this is the component that provides off-thread sync types with |
| // functionality to schedule and execute communication with the sync server. In |
| // practice, this class delegates most of the responsibilty of implemeting this |
| // functionality to other classes, and most of the interface is exposed not |
| // directly here but instead through a per-ModelType class that this class helps |
| // instantiate. |
| class SYNC_EXPORT SyncContext { |
| public: |
| SyncContext(); |
| virtual ~SyncContext(); |
| |
| // Initializes the connection between the sync context on the sync thread and |
| // a proxy for the specified non-blocking sync type that lives on the data |
| // type's thread. |
| virtual void ConnectSyncTypeToWorker( |
| syncer::ModelType type, |
| scoped_ptr<ActivationContext> activation_context) = 0; |
| |
| // Disconnects the syncer from the model and stops syncing the type. |
| // |
| // By the time this is called, the model thread should have already |
| // invalidated the WeakPtr it sent to us in the connect request. Any |
| // messages sent to that ModelTypeProcessor will not be recived. |
| // |
| // This is the sync thread's chance to clear state associated with the type. |
| // It also causes the syncer to stop requesting updates for this type, and to |
| // abort any in-progress commit requests. |
| virtual void DisconnectSyncWorker(syncer::ModelType type) = 0; |
| }; |
| |
| } // namespace syncer_v2 |
| |
| #endif // SYNC_INTERNAL_API_PUBLIC_SYNC_CONTEXT_H_ |