1ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen// Copyright (c) 2011 The Chromium Authors. All rights reserved. 2c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// found in the LICENSE file. 4c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 5c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#ifndef CHROME_BROWSER_SYNC_UTIL_EXTENSIONS_ACTIVITY_MONITOR_H_ 6c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#define CHROME_BROWSER_SYNC_UTIL_EXTENSIONS_ACTIVITY_MONITOR_H_ 73345a6884c488ff3a535c2c9acdd33d74b37e311Iain Merrick#pragma once 8c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 9c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include <map> 10c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 11c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#include "base/message_loop.h" 1272a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen#include "base/synchronization/lock.h" 13ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen#include "content/common/notification_observer.h" 14ddb351dbec246cf1fab5ec20d2d5520909041de1Kristian Monsen#include "content/common/notification_registrar.h" 15c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 16c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochnamespace browser_sync { 17c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 18c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// A class to monitor usage of extensions APIs to send to sync servers, with 19c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// the ability to purge data once sync servers have acknowledged it (successful 20c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// commit response). 21c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// 22c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// This can be used from any thread (it is a 'monitor' in the synchronization 23c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// sense as well), HOWEVER 24c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// 25c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// *** IT MUST BE DELETED FROM THE UI LOOP *** 26c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// 27c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// Consider using MessageLoop::DeleteSoon. (Yes, this means if you allocate 28c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch// an ExtensionsActivityMonitor on a thread other than UI, you must 'new' it). 29c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdochclass ExtensionsActivityMonitor : public NotificationObserver { 30c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch public: 31c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // A data record of activity performed by extension |extension_id|. 32c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch struct Record { 33c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch Record() : bookmark_write_count(0U) {} 34c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 35c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // The human-readable ID identifying the extension responsible 36c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // for the activity reported in this Record. 37c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch std::string extension_id; 38c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 39c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // How many times the extension successfully invoked a write 40c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // operation through the bookmarks API since the last CommitMessage. 41c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch uint32 bookmark_write_count; 42c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch }; 43c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 44c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch typedef std::map<std::string, Record> Records; 45c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 46c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Creates an ExtensionsActivityMonitor to monitor extensions activities on 47731df977c0511bca2206b5f333555b1205ff1f43Iain Merrick // BrowserThread::UI. 48c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ExtensionsActivityMonitor(); 49c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch ~ExtensionsActivityMonitor(); 50c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 51c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Fills |buffer| with snapshot of current records in constant time by 52c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // swapping. This is done mutually exclusively w.r.t methods of this class. 53c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch void GetAndClearRecords(Records* buffer); 54c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 55c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Add |records| piece-wise (by extension id) to the set of active records. 56c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // This is done mutually exclusively w.r.t the methods of this class. 57c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch void PutRecords(const Records& records); 58c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 59c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // NotificationObserver implementation. Called on |ui_loop_|. 60c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch virtual void Observe(NotificationType type, 61c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch const NotificationSource& source, 62c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch const NotificationDetails& details); 63c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch private: 64c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch Records records_; 6572a454cd3513ac24fbdd0e0cb9ad70b86a99b801Kristian Monsen mutable base::Lock records_lock_; 66c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 67c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch // Used only from UI loop. 68c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch NotificationRegistrar registrar_; 69c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch}; 70c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 71c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch} // namespace browser_sync 72c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch 73c407dc5cd9bdc5668497f21b26b09d988ab439deBen Murdoch#endif // CHROME_BROWSER_SYNC_UTIL_EXTENSIONS_ACTIVITY_MONITOR_H_ 74