components/password_manager/sync/browser/password_model_worker.h

   1 // Copyright (c) 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 COMPONENTS_PASSWORD_MANAGER_SYNC_BROWSER_PASSWORD_MODEL_WORKER_H_
   6 #define COMPONENTS_PASSWORD_MANAGER_SYNC_BROWSER_PASSWORD_MODEL_WORKER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/callback_forward.h"
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "sync/internal_api/public/engine/model_safe_worker.h"
  13
  14 namespace base {
  15 class WaitableEvent;
  16 }
  17
  18 namespace password_manager {
  19 class PasswordStore;
  20 }
  21
  22 namespace browser_sync {
  23
  24 // A syncer::ModelSafeWorker for password models that accepts requests
  25 // from the syncapi that need to be fulfilled on the password thread,
  26 // which is the DB thread on Linux and Windows.
  27 class PasswordModelWorker : public syncer::ModelSafeWorker {
  28  public:
  29   PasswordModelWorker(
  30       const scoped_refptr<password_manager::PasswordStore>& password_store,
  31       syncer::WorkerLoopDestructionObserver* observer);
  32
  33   // syncer::ModelSafeWorker implementation. Called on syncapi SyncerThread.
  34   void RegisterForLoopDestruction() override;
  35   syncer::ModelSafeGroup GetModelSafeGroup() override;
  36   void RequestStop() override;
  37
  38  protected:
  39   syncer::SyncerError DoWorkAndWaitUntilDoneImpl(
  40       const syncer::WorkCallback& work) override;
  41
  42  private:
  43   ~PasswordModelWorker() override;
  44
  45   void CallDoWorkAndSignalTask(const syncer::WorkCallback& work,
  46                                base::WaitableEvent* done,
  47                                syncer::SyncerError* error);
  48
  49   // Called on password thread to add PasswordModelWorker as destruction
  50   // observer.
  51   void RegisterForPasswordLoopDestruction();
  52
  53   // |password_store_| is used on password thread but released on UI thread.
  54   // Protected by |password_store_lock_|.
  55   base::Lock password_store_lock_;
  56   scoped_refptr<password_manager::PasswordStore> password_store_;
  57   DISALLOW_COPY_AND_ASSIGN(PasswordModelWorker);
  58 };
  59
  60 }  // namespace browser_sync
  61
  62 #endif  // COMPONENTS_PASSWORD_MANAGER_SYNC_BROWSER_PASSWORD_MODEL_WORKER_H_