sync/test/engine/injectable_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_TEST_ENGINE_INJECTABLE_SYNC_CONTEXT_PROXY_H_
   6 #define SYNC_TEST_ENGINE_INJECTABLE_SYNC_CONTEXT_PROXY_H_
   7
   8 #include "sync/internal_api/public/base/model_type.h"
   9 #include "sync/internal_api/public/non_blocking_sync_common.h"
  10 #include "sync/internal_api/public/sync_context_proxy.h"
  11
  12 namespace syncer {
  13
  14 class ModelTypeSyncProxyImpl;
  15 class ModelTypeSyncWorker;
  16
  17 // A SyncContextProxy implementation that, when a connection request is made,
  18 // initalizes a connection to a previously injected ModelTypeSyncProxyImpl.
  19 class InjectableSyncContextProxy : public syncer_v2::SyncContextProxy {
  20  public:
  21   explicit InjectableSyncContextProxy(ModelTypeSyncWorker* worker);
  22   ~InjectableSyncContextProxy() override;
  23
  24   void ConnectTypeToSync(
  25       ModelType type,
  26       const syncer_v2::DataTypeState& data_type_state,
  27       const syncer_v2::UpdateResponseDataList& pending_updates,
  28       const base::WeakPtr<syncer::ModelTypeSyncProxyImpl>& type_sync_proxy)
  29       override;
  30   void Disconnect(ModelType type) override;
  31   scoped_ptr<syncer_v2::SyncContextProxy> Clone() const override;
  32
  33   ModelTypeSyncWorker* GetWorker();
  34
  35  private:
  36   // A flag to ensure ConnectTypeToSync is called at most once.
  37   bool is_worker_connected_;
  38
  39   // The ModelTypeSyncProxy's contract expects that it gets to own this object,
  40   // so we can retain only a non-owned pointer to it.
  41   //
  42   // This is very unsafe, but we can get away with it since these tests are not
  43   // exercising the proxy <-> worker connection code.
  44   ModelTypeSyncWorker* worker_;
  45 };
  46
  47 }  // namespace syncer
  48
  49 #endif  // SYNC_TEST_ENGINE_INJECTABLE_SYNC_CONTEXT_PROXY_H_