chrome/browser/sync/glue/password_model_worker.h

   1 // Copyright (c) 2012 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 CHROME_BROWSER_SYNC_GLUE_PASSWORD_MODEL_WORKER_H_
   6 #define CHROME_BROWSER_SYNC_GLUE_PASSWORD_MODEL_WORKER_H_
   7
   8 #include "sync/internal_api/public/engine/model_safe_worker.h"
   9
  10 #include "base/basictypes.h"
  11 #include "base/callback_forward.h"
  12 #include "base/compiler_specific.h"
  13 #include "base/memory/ref_counted.h"
  14
  15 namespace base {
  16 class WaitableEvent;
  17 }
  18
  19 namespace password_manager {
  20 class PasswordStore;
  21 }
  22
  23 namespace browser_sync {
  24
  25 // A syncer::ModelSafeWorker for password models that accepts requests
  26 // from the syncapi that need to be fulfilled on the password thread,
  27 // which is the DB thread on Linux and Windows.
  28 class PasswordModelWorker : public syncer::ModelSafeWorker {
  29  public:
  30   PasswordModelWorker(
  31       const scoped_refptr<password_manager::PasswordStore>& password_store,
  32       syncer::WorkerLoopDestructionObserver* observer);
  33
  34   // syncer::ModelSafeWorker implementation. Called on syncapi SyncerThread.
  35   void RegisterForLoopDestruction() override;
  36   syncer::ModelSafeGroup GetModelSafeGroup() override;
  37   void RequestStop() override;
  38
  39  protected:
  40   syncer::SyncerError DoWorkAndWaitUntilDoneImpl(
  41       const syncer::WorkCallback& work) override;
  42
  43  private:
  44   ~PasswordModelWorker() override;
  45
  46   void CallDoWorkAndSignalTask(
  47     const syncer::WorkCallback& work,
  48     base::WaitableEvent* done,
  49     syncer::SyncerError* error);
  50
  51   // Called on password thread to add PasswordModelWorker as destruction
  52   // observer.
  53   void RegisterForPasswordLoopDestruction();
  54
  55   // |password_store_| is used on password thread but released on UI thread.
  56   // Protected by |password_store_lock_|.
  57   base::Lock password_store_lock_;
  58   scoped_refptr<password_manager::PasswordStore> password_store_;
  59   DISALLOW_COPY_AND_ASSIGN(PasswordModelWorker);
  60 };
  61
  62 }  // namespace browser_sync
  63
  64 #endif  // CHROME_BROWSER_SYNC_GLUE_PASSWORD_MODEL_WORKER_H_