components/update_client/task_update.h

   1 // Copyright 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_UPDATE_CLIENT_TASK_UPDATE_H_
   6 #define COMPONENTS_UPDATE_CLIENT_TASK_UPDATE_H_
   7
   8 #include <queue>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/callback.h"
  13 #include "base/macros.h"
  14 #include "base/threading/thread_checker.h"
  15 #include "components/update_client/task.h"
  16 #include "components/update_client/update_client.h"
  17
  18 namespace update_client {
  19
  20 class UpdateEngine;
  21
  22 // Defines a specialized task for updating a group of CRXs.
  23 class TaskUpdate : public Task {
  24  public:
  25   TaskUpdate(UpdateEngine* update_engine,
  26              const std::vector<std::string>& ids,
  27              const UpdateClient::CrxDataCallback& crx_data_callback);
  28   ~TaskUpdate() override;
  29
  30   void Run(const Callback& callback) override;
  31
  32  private:
  33   // Called when the Run function associated with this task has completed.
  34   void RunComplete(int error);
  35
  36   base::ThreadChecker thread_checker_;
  37
  38   UpdateEngine* update_engine_;  // Not owned by this class.
  39
  40   const std::vector<std::string> ids_;
  41   const UpdateClient::CrxDataCallback crx_data_callback_;
  42
  43   // Called to return the execution flow back to the caller of the
  44   // Run function when this task has completed .
  45   Callback callback_;
  46
  47   DISALLOW_COPY_AND_ASSIGN(TaskUpdate);
  48 };
  49
  50 }  // namespace update_client
  51
  52 #endif  // COMPONENTS_UPDATE_CLIENT_TASK_UPDATE_H_