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Diffstat (limited to 'chromium/components/update_client/action.h')
-rw-r--r-- | chromium/components/update_client/action.h | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/chromium/components/update_client/action.h b/chromium/components/update_client/action.h deleted file mode 100644 index 46397b993b5..00000000000 --- a/chromium/components/update_client/action.h +++ /dev/null @@ -1,87 +0,0 @@ -// Copyright 2015 The Chromium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -#ifndef COMPONENTS_UPDATE_CLIENT_ACTION_H_ -#define COMPONENTS_UPDATE_CLIENT_ACTION_H_ - -#include <stddef.h> - -#include <string> - -#include "base/callback.h" -#include "base/macros.h" -#include "base/threading/thread_checker.h" -#include "components/update_client/crx_update_item.h" -#include "components/update_client/update_client.h" - -namespace update_client { - -enum class Error; -struct CrxUpdateItem; -struct UpdateContext; - -// Any update can be broken down as a sequence of discrete steps, such as -// checking for updates, downloading patches, updating, and waiting between -// successive updates. An action is the smallest unit of work executed by -// the update engine. -// -// Defines an abstract interface for a unit of work, executed by the -// update engine as part of an update. -class Action { - public: - virtual ~Action() {} - - // Runs the code encapsulated by the action. When an action completes, it can - // chain up and transfer the execution flow to another action or it can - // invoke the |callback| when this function has completed and there is nothing - // else to do. - virtual void Run(UpdateContext* update_context, Callback callback) = 0; -}; - -// Provides a reusable implementation of common functions needed by actions. -class ActionImpl { - protected: - ActionImpl(); - ~ActionImpl(); - - void Run(UpdateContext* update_context, Callback callback); - - // Changes the current state of the |item| to the new state |to|. - void ChangeItemState(CrxUpdateItem* item, CrxUpdateItem::State to); - - // Changes the state of all items in |update_context_|. Returns the count - // of items affected by the call. - size_t ChangeAllItemsState(CrxUpdateItem::State from, - CrxUpdateItem::State to); - - // Returns the item associated with the component |id| or nullptr in case - // of errors. - CrxUpdateItem* FindUpdateItemById(const std::string& id) const; - - void NotifyObservers(UpdateClient::Observer::Events event, - const std::string& id); - - // Updates the CRX at the front of the CRX queue in this update context. - void UpdateCrx(); - - // Completes updating the CRX at the front of the queue, and initiates - // the update for the next CRX in the queue, if the queue is not empty. - void UpdateCrxComplete(CrxUpdateItem* item); - - // Called when the updates for all CRXs have finished and the execution - // flow must return back to the update engine. - void UpdateComplete(Error error); - - base::ThreadChecker thread_checker_; - - UpdateContext* update_context_; // Not owned by this class. - Callback callback_; - - private: - DISALLOW_COPY_AND_ASSIGN(ActionImpl); -}; - -} // namespace update_client - -#endif // COMPONENTS_UPDATE_CLIENT_ACTION_H_ |