src/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 class PasswordStore;
  16
  17 namespace base {
  18 class WaitableEvent;
  19 }
  20
  21 namespace browser_sync {
  22
  23 // A syncer::ModelSafeWorker for password models that accepts requests
  24 // from the syncapi that need to be fulfilled on the password thread,
  25 // which is the DB thread on Linux and Windows.
  26 class PasswordModelWorker : public syncer::ModelSafeWorker {
  27  public:
  28   PasswordModelWorker(const scoped_refptr<PasswordStore>& password_store,
  29                       syncer::WorkerLoopDestructionObserver* observer);
  30
  31   // syncer::ModelSafeWorker implementation. Called on syncapi SyncerThread.
  32   virtual void RegisterForLoopDestruction() OVERRIDE;
  33   virtual syncer::ModelSafeGroup GetModelSafeGroup() OVERRIDE;
  34   virtual void RequestStop() OVERRIDE;
  35
  36  protected:
  37   virtual syncer::SyncerError DoWorkAndWaitUntilDoneImpl(
  38       const syncer::WorkCallback& work) OVERRIDE;
  39
  40  private:
  41   virtual ~PasswordModelWorker();
  42
  43   void CallDoWorkAndSignalTask(
  44     const syncer::WorkCallback& work,
  45     base::WaitableEvent* done,
  46     syncer::SyncerError* error);
  47
  48   // Called on password thread to add PasswordModelWorker as destruction
  49   // observer.
  50   void RegisterForPasswordLoopDestruction();
  51
  52   // |password_store_| is used on password thread but released on UI thread.
  53   // Protected by |password_store_lock_|.
  54   base::Lock password_store_lock_;
  55   scoped_refptr<PasswordStore> password_store_;
  56   DISALLOW_COPY_AND_ASSIGN(PasswordModelWorker);
  57 };
  58
  59 }  // namespace browser_sync
  60
  61 #endif  // CHROME_BROWSER_SYNC_GLUE_PASSWORD_MODEL_WORKER_H_