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| 1 // Copyright 2007-2010 Google Inc. | |
| 2 // | |
| 3 // Licensed under the Apache License, Version 2.0 (the "License"); | |
| 4 // you may not use this file except in compliance with the License. | |
| 5 // You may obtain a copy of the License at | |
| 6 // | |
| 7 // http://www.apache.org/licenses/LICENSE-2.0 | |
| 8 // | |
| 9 // Unless required by applicable law or agreed to in writing, software | |
| 10 // distributed under the License is distributed on an "AS IS" BASIS, | |
| 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 12 // See the License for the specific language governing permissions and | |
| 13 // limitations under the License. | |
| 14 // ======================================================================== | |
| 15 | |
| 16 #ifndef OMAHA_GOOPDATE_WORKER_H_ | |
| 17 #define OMAHA_GOOPDATE_WORKER_H_ | |
| 18 | |
| 19 #include <windows.h> | |
| 20 #include <atlstr.h> | |
| 21 #include "base/basictypes.h" | |
| 22 #include "omaha/base/program_instance.h" | |
| 23 #include "base/scoped_ptr.h" | |
| 24 #include "omaha/base/shutdown_callback.h" | |
| 25 #include "omaha/base/shutdown_handler.h" | |
| 26 #include "omaha/base/wtl_atlapp_wrapper.h" | |
| 27 #include "third_party/bar/shared_ptr.h" | |
| 28 | |
| 29 namespace omaha { | |
| 30 | |
| 31 namespace xml { | |
| 32 | |
| 33 class UpdateRequest; | |
| 34 class UpdateResponse; | |
| 35 | |
| 36 } // namespace xml | |
| 37 | |
| 38 class AppBundle; | |
| 39 class DownloadManagerInterface; | |
| 40 class InstallManagerInterface; | |
| 41 class Model; | |
| 42 class Package; | |
| 43 class Reactor; | |
| 44 | |
| 45 // Limited subset of Worker interface that the Model needs. | |
| 46 class WorkerModelInterface { | |
| 47 public: | |
| 48 virtual ~WorkerModelInterface() {} | |
| 49 virtual HRESULT CheckForUpdateAsync(AppBundle* app_bundle) = 0; | |
| 50 virtual HRESULT DownloadAsync(AppBundle* app_bundle) = 0; | |
| 51 virtual HRESULT DownloadAndInstallAsync(AppBundle* app_bundle) = 0; | |
| 52 virtual HRESULT UpdateAllAppsAsync(AppBundle* app_bundle) = 0; | |
| 53 virtual HRESULT DownloadPackageAsync(Package* package) = 0; | |
| 54 virtual HRESULT Stop(AppBundle* app_bundle) = 0; | |
| 55 virtual HRESULT Pause(AppBundle* app_bundle) = 0; | |
| 56 virtual HRESULT Resume(AppBundle* app_bundle) = 0; | |
| 57 virtual HRESULT GetPackage(const Package* package, const CString& dir) = 0; | |
| 58 virtual bool IsPackageAvailable(const Package* package) const = 0; | |
| 59 virtual HRESULT PurgeAppLowerVersions(const CString& app_id, | |
| 60 const CString& version) = 0; | |
| 61 virtual int Lock() = 0; | |
| 62 virtual int Unlock() = 0; | |
| 63 }; | |
| 64 | |
| 65 // Worker is a singleton. | |
| 66 class Worker : public WorkerModelInterface, public ShutdownCallback { | |
| 67 public: | |
| 68 // Instance, Initialize, and DeleteInstance methods below are not thread safe. | |
| 69 // The caller must initialize and cleanup the instance before going | |
| 70 // multithreaded. | |
| 71 | |
| 72 // Gets the singleton instance of the class. | |
| 73 static Worker& Instance(); | |
| 74 | |
| 75 // Initializes the instance. | |
| 76 HRESULT Initialize(bool is_machine); | |
| 77 | |
| 78 // Cleans up the class instance. | |
| 79 static void DeleteInstance(); | |
| 80 | |
| 81 HRESULT Run(); | |
| 82 | |
| 83 HRESULT Shutdown(); | |
| 84 HRESULT InitializeShutDownHandler(); | |
| 85 | |
| 86 // TODO(omaha): not clear how to make this an atomic operation. Consider | |
| 87 // making the model instance a bare pointer instead of smart pointer. | |
| 88 Model* model() { return model_.get(); } | |
| 89 const Model* model() const { return model_.get(); } | |
| 90 | |
| 91 // Initiates an update check for all apps in the bundle. | |
| 92 virtual HRESULT CheckForUpdateAsync(AppBundle* app_bundle); | |
| 93 | |
| 94 // Initiates download of files necessary to install all apps in the bundle. | |
| 95 virtual HRESULT DownloadAsync(AppBundle* app_bundle); | |
| 96 | |
| 97 // Initiates Download, if necessary, and install all app in the bundle. | |
| 98 virtual HRESULT DownloadAndInstallAsync(AppBundle* app_bundle); | |
| 99 | |
| 100 // Initiates an update of all registered apps and performs periodic tasks | |
| 101 // related to all apps. Primarily for use by Omaha's /ua client. Includes | |
| 102 // update check, download and install. | |
| 103 virtual HRESULT UpdateAllAppsAsync(AppBundle* app_bundle); | |
| 104 | |
| 105 // Initiates download of a package. | |
| 106 virtual HRESULT DownloadPackageAsync(Package* package); | |
| 107 | |
| 108 virtual HRESULT Stop(AppBundle* app_bundle); | |
| 109 virtual HRESULT Pause(AppBundle* app_bundle); | |
| 110 virtual HRESULT Resume(AppBundle* app_bundle); | |
| 111 | |
| 112 virtual HRESULT GetPackage(const Package*, const CString& dir); | |
| 113 | |
| 114 virtual bool IsPackageAvailable(const Package* package) const; | |
| 115 | |
| 116 virtual HRESULT PurgeAppLowerVersions(const CString& app_id, | |
| 117 const CString& version); | |
| 118 | |
| 119 // Locks and unlocks the server module by incrementing or decrementing | |
| 120 // the lock count of the module. | |
| 121 virtual int Lock(); | |
| 122 virtual int Unlock(); | |
| 123 | |
| 124 private: | |
| 125 Worker(); | |
| 126 ~Worker(); | |
| 127 | |
| 128 HRESULT DoRun(); | |
| 129 | |
| 130 // These functions execute code in the thread pool. They hold an outstanding | |
| 131 // reference to the application bundle to prevent the application bundle | |
| 132 // object from being deleted before the functions complete. | |
| 133 void CheckForUpdate(shared_ptr<AppBundle> app_bundle); | |
| 134 void Download(shared_ptr<AppBundle> app_bundle); | |
| 135 void DownloadAndInstall(shared_ptr<AppBundle> app_bundle); | |
| 136 void DownloadPackage(shared_ptr<AppBundle> app_bundle, Package* package); | |
| 137 void UpdateAllApps(shared_ptr<AppBundle> app_bundle); | |
| 138 | |
| 139 // These functions do the work for the corresponding functions but do not call | |
| 140 // CompleteAsyncCall(). | |
| 141 void CheckForUpdateHelper(AppBundle* app_bundle, bool* is_check_successful); | |
| 142 void DownloadAndInstallHelper(AppBundle* app_bundle); | |
| 143 | |
| 144 // Stops and destroys the Worker and its members. | |
| 145 // TODO(omaha): rename this as it overloads WorkerModelInterface::Stop. | |
| 146 void Stop(); | |
| 147 | |
| 148 bool EnsureSingleInstance(); | |
| 149 | |
| 150 void CollectAmbientUsageStats(); | |
| 151 | |
| 152 void DoPreUpdateCheck(AppBundle* app_bundle, | |
| 153 xml::UpdateRequest* update_request); | |
| 154 | |
| 155 HRESULT CacheOfflinePackages(AppBundle* app_bundle); | |
| 156 | |
| 157 HRESULT DoUpdateCheck(AppBundle* app_bundle, | |
| 158 const xml::UpdateRequest* update_request, | |
| 159 xml::UpdateResponse* update_response); | |
| 160 void DoPostUpdateCheck(AppBundle* app_bundle, | |
| 161 HRESULT update_check_result, | |
| 162 xml::UpdateResponse* update_response); | |
| 163 | |
| 164 HRESULT QueueDeferredFunctionCall0( | |
| 165 AppBundle* app_bundle, | |
| 166 void (Worker::*deferred_function)(shared_ptr<AppBundle>)); | |
| 167 | |
| 168 template <typename P1> | |
| 169 HRESULT QueueDeferredFunctionCall1( | |
| 170 AppBundle* app_bundle, | |
| 171 P1 p1, | |
| 172 void (Worker::*deferred_function)(shared_ptr<AppBundle>, P1)); | |
| 173 | |
| 174 void WriteEventLog(int event_type, | |
| 175 int event_id, | |
| 176 const CString& event_description, | |
| 177 const CString& event_text); | |
| 178 | |
| 179 bool is_machine_; | |
| 180 scoped_ptr<ProgramInstance> single_instance_; | |
| 181 scoped_ptr<Reactor> reactor_; | |
| 182 scoped_ptr<ShutdownHandler> shutdown_handler_; | |
| 183 scoped_ptr<Model> model_; | |
| 184 scoped_ptr<DownloadManagerInterface> download_manager_; | |
| 185 scoped_ptr<InstallManagerInterface> install_manager_; | |
| 186 | |
| 187 CMessageLoop message_loop_; | |
| 188 | |
| 189 static Worker* const kInvalidInstance; | |
| 190 static Worker* instance_; | |
| 191 | |
| 192 friend class WorkerTest; | |
| 193 | |
| 194 DISALLOW_COPY_AND_ASSIGN(Worker); | |
| 195 }; | |
| 196 | |
| 197 // For unittests, where creation and termination of Worker instances may be | |
| 198 // required, the implementation disables the dead reference detection. This | |
| 199 // forces an inline of the code below for unit tests, so different behavior | |
| 200 // can be achieved, even though the rest of the implementation compiles in | |
| 201 // a library. It is somehow brittle but good enough for now. | |
| 202 | |
| 203 #ifdef UNITTEST | |
| 204 __forceinline | |
| 205 #else | |
| 206 inline | |
| 207 #endif | |
| 208 void Worker::DeleteInstance() { | |
| 209 delete instance_; | |
| 210 #ifdef UNITTEST | |
| 211 instance_ = NULL; | |
| 212 #else | |
| 213 instance_ = kInvalidInstance; | |
| 214 #endif | |
| 215 } | |
| 216 | |
| 217 } // namespace omaha | |
| 218 | |
| 219 #endif // OMAHA_GOOPDATE_WORKER_H_ | |
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Chromium Code Reviews
Issue 624713003:
Keep only base/extractor.[cc|h]. (Closed)
Base URL: https://chromium.googlesource.com/external/omaha.git@master