The Tor Browser / file comparison
comparison: dom/workers/RuntimeService.h
dom/workers/RuntimeService.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:d09966b1702d |
|---|---|
| 1 /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */ | |
| 2 /* vim: set ts=2 et sw=2 tw=80: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef mozilla_dom_workers_runtimeservice_h__ | |
| 8 #define mozilla_dom_workers_runtimeservice_h__ | |
| 9 | |
| 10 #include "Workers.h" | |
| 11 | |
| 12 #include "nsIObserver.h" | |
| 13 | |
| 14 #include "mozilla/TimeStamp.h" | |
| 15 #include "mozilla/dom/BindingDeclarations.h" | |
| 16 #include "nsClassHashtable.h" | |
| 17 #include "nsHashKeys.h" | |
| 18 #include "nsTArray.h" | |
| 19 | |
| 20 class nsIRunnable; | |
| 21 class nsIThread; | |
| 22 class nsITimer; | |
| 23 class nsPIDOMWindow; | |
| 24 | |
| 25 BEGIN_WORKERS_NAMESPACE | |
| 26 | |
| 27 class SharedWorker; | |
| 28 class WorkerPrivate; | |
| 29 | |
| 30 class RuntimeService MOZ_FINAL : public nsIObserver | |
| 31 { | |
| 32 public: | |
| 33 class WorkerThread; | |
| 34 | |
| 35 private: | |
| 36 struct SharedWorkerInfo | |
| 37 { | |
| 38 WorkerPrivate* mWorkerPrivate; | |
| 39 nsCString mScriptSpec; | |
| 40 nsCString mName; | |
| 41 | |
| 42 SharedWorkerInfo(WorkerPrivate* aWorkerPrivate, | |
| 43 const nsACString& aScriptSpec, | |
| 44 const nsACString& aName) | |
| 45 : mWorkerPrivate(aWorkerPrivate), mScriptSpec(aScriptSpec), mName(aName) | |
| 46 { } | |
| 47 }; | |
| 48 | |
| 49 struct WorkerDomainInfo | |
| 50 { | |
| 51 nsCString mDomain; | |
| 52 nsTArray<WorkerPrivate*> mActiveWorkers; | |
| 53 nsTArray<WorkerPrivate*> mQueuedWorkers; | |
| 54 nsClassHashtable<nsCStringHashKey, SharedWorkerInfo> mSharedWorkerInfos; | |
| 55 uint32_t mChildWorkerCount; | |
| 56 | |
| 57 WorkerDomainInfo() | |
| 58 : mActiveWorkers(1), mChildWorkerCount(0) | |
| 59 { } | |
| 60 | |
| 61 uint32_t | |
| 62 ActiveWorkerCount() const | |
| 63 { | |
| 64 return mActiveWorkers.Length() + mChildWorkerCount; | |
| 65 } | |
| 66 }; | |
| 67 | |
| 68 struct IdleThreadInfo | |
| 69 { | |
| 70 nsRefPtr<WorkerThread> mThread; | |
| 71 mozilla::TimeStamp mExpirationTime; | |
| 72 }; | |
| 73 | |
| 74 struct MatchSharedWorkerInfo | |
| 75 { | |
| 76 WorkerPrivate* mWorkerPrivate; | |
| 77 SharedWorkerInfo* mSharedWorkerInfo; | |
| 78 | |
| 79 MatchSharedWorkerInfo(WorkerPrivate* aWorkerPrivate) | |
| 80 : mWorkerPrivate(aWorkerPrivate), mSharedWorkerInfo(nullptr) | |
| 81 { } | |
| 82 }; | |
| 83 | |
| 84 mozilla::Mutex mMutex; | |
| 85 | |
| 86 // Protected by mMutex. | |
| 87 nsClassHashtable<nsCStringHashKey, WorkerDomainInfo> mDomainMap; | |
| 88 | |
| 89 // Protected by mMutex. | |
| 90 nsTArray<IdleThreadInfo> mIdleThreadArray; | |
| 91 | |
| 92 // *Not* protected by mMutex. | |
| 93 nsClassHashtable<nsPtrHashKey<nsPIDOMWindow>, | |
| 94 nsTArray<WorkerPrivate*> > mWindowMap; | |
| 95 | |
| 96 // Only used on the main thread. | |
| 97 nsCOMPtr<nsITimer> mIdleThreadTimer; | |
| 98 | |
| 99 static JSSettings sDefaultJSSettings; | |
| 100 static bool sDefaultPreferences[WORKERPREF_COUNT]; | |
| 101 | |
| 102 public: | |
| 103 struct NavigatorProperties | |
| 104 { | |
| 105 nsString mAppName; | |
| 106 nsString mAppNameOverridden; | |
| 107 nsString mAppVersion; | |
| 108 nsString mAppVersionOverridden; | |
| 109 nsString mPlatform; | |
| 110 nsString mPlatformOverridden; | |
| 111 nsString mUserAgent; | |
| 112 }; | |
| 113 | |
| 114 private: | |
| 115 NavigatorProperties mNavigatorProperties; | |
| 116 | |
| 117 // True when the observer service holds a reference to this object. | |
| 118 bool mObserved; | |
| 119 bool mShuttingDown; | |
| 120 bool mNavigatorPropertiesLoaded; | |
| 121 | |
| 122 public: | |
| 123 NS_DECL_ISUPPORTS | |
| 124 NS_DECL_NSIOBSERVER | |
| 125 | |
| 126 static RuntimeService* | |
| 127 GetOrCreateService(); | |
| 128 | |
| 129 static RuntimeService* | |
| 130 GetService(); | |
| 131 | |
| 132 bool | |
| 133 RegisterWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate); | |
| 134 | |
| 135 void | |
| 136 UnregisterWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate); | |
| 137 | |
| 138 void | |
| 139 CancelWorkersForWindow(nsPIDOMWindow* aWindow); | |
| 140 | |
| 141 void | |
| 142 SuspendWorkersForWindow(nsPIDOMWindow* aWindow); | |
| 143 | |
| 144 void | |
| 145 ResumeWorkersForWindow(nsPIDOMWindow* aWindow); | |
| 146 | |
| 147 nsresult | |
| 148 CreateSharedWorker(const GlobalObject& aGlobal, | |
| 149 const nsAString& aScriptURL, | |
| 150 const nsACString& aName, | |
| 151 SharedWorker** aSharedWorker); | |
| 152 | |
| 153 void | |
| 154 ForgetSharedWorker(WorkerPrivate* aWorkerPrivate); | |
| 155 | |
| 156 const NavigatorProperties& | |
| 157 GetNavigatorProperties() const | |
| 158 { | |
| 159 return mNavigatorProperties; | |
| 160 } | |
| 161 | |
| 162 void | |
| 163 NoteIdleThread(WorkerThread* aThread); | |
| 164 | |
| 165 static void | |
| 166 GetDefaultJSSettings(JSSettings& aSettings) | |
| 167 { | |
| 168 AssertIsOnMainThread(); | |
| 169 aSettings = sDefaultJSSettings; | |
| 170 } | |
| 171 | |
| 172 static void | |
| 173 GetDefaultPreferences(bool aPreferences[WORKERPREF_COUNT]) | |
| 174 { | |
| 175 AssertIsOnMainThread(); | |
| 176 memcpy(aPreferences, sDefaultPreferences, WORKERPREF_COUNT * sizeof(bool)); | |
| 177 } | |
| 178 | |
| 179 static void | |
| 180 SetDefaultRuntimeAndContextOptions( | |
| 181 const JS::RuntimeOptions& aRuntimeOptions, | |
| 182 const JS::ContextOptions& aContentCxOptions, | |
| 183 const JS::ContextOptions& aChromeCxOptions) | |
| 184 { | |
| 185 AssertIsOnMainThread(); | |
| 186 sDefaultJSSettings.runtimeOptions = aRuntimeOptions; | |
| 187 sDefaultJSSettings.content.contextOptions = aContentCxOptions; | |
| 188 sDefaultJSSettings.chrome.contextOptions = aChromeCxOptions; | |
| 189 } | |
| 190 | |
| 191 void | |
| 192 UpdateAppNameOverridePreference(const nsAString& aValue); | |
| 193 | |
| 194 void | |
| 195 UpdateAppVersionOverridePreference(const nsAString& aValue); | |
| 196 | |
| 197 void | |
| 198 UpdatePlatformOverridePreference(const nsAString& aValue); | |
| 199 | |
| 200 void | |
| 201 UpdateAllWorkerRuntimeAndContextOptions(); | |
| 202 | |
| 203 void | |
| 204 UpdateAllWorkerPreference(WorkerPreference aPref, bool aValue); | |
| 205 | |
| 206 static void | |
| 207 SetDefaultJSGCSettings(JSGCParamKey aKey, uint32_t aValue) | |
| 208 { | |
| 209 AssertIsOnMainThread(); | |
| 210 sDefaultJSSettings.ApplyGCSetting(aKey, aValue); | |
| 211 } | |
| 212 | |
| 213 void | |
| 214 UpdateAllWorkerMemoryParameter(JSGCParamKey aKey, uint32_t aValue); | |
| 215 | |
| 216 static uint32_t | |
| 217 GetContentCloseHandlerTimeoutSeconds() | |
| 218 { | |
| 219 return sDefaultJSSettings.content.maxScriptRuntime; | |
| 220 } | |
| 221 | |
| 222 static uint32_t | |
| 223 GetChromeCloseHandlerTimeoutSeconds() | |
| 224 { | |
| 225 return sDefaultJSSettings.chrome.maxScriptRuntime; | |
| 226 } | |
| 227 | |
| 228 #ifdef JS_GC_ZEAL | |
| 229 static void | |
| 230 SetDefaultGCZeal(uint8_t aGCZeal, uint32_t aFrequency) | |
| 231 { | |
| 232 AssertIsOnMainThread(); | |
| 233 sDefaultJSSettings.gcZeal = aGCZeal; | |
| 234 sDefaultJSSettings.gcZealFrequency = aFrequency; | |
| 235 } | |
| 236 | |
| 237 void | |
| 238 UpdateAllWorkerGCZeal(); | |
| 239 #endif | |
| 240 | |
| 241 void | |
| 242 GarbageCollectAllWorkers(bool aShrinking); | |
| 243 | |
| 244 void | |
| 245 CycleCollectAllWorkers(); | |
| 246 | |
| 247 void | |
| 248 SendOfflineStatusChangeEventToAllWorkers(bool aIsOffline); | |
| 249 | |
| 250 private: | |
| 251 RuntimeService(); | |
| 252 ~RuntimeService(); | |
| 253 | |
| 254 nsresult | |
| 255 Init(); | |
| 256 | |
| 257 void | |
| 258 Shutdown(); | |
| 259 | |
| 260 void | |
| 261 Cleanup(); | |
| 262 | |
| 263 static PLDHashOperator | |
| 264 AddAllTopLevelWorkersToArray(const nsACString& aKey, | |
| 265 WorkerDomainInfo* aData, | |
| 266 void* aUserArg); | |
| 267 | |
| 268 static PLDHashOperator | |
| 269 RemoveSharedWorkerFromWindowMap(nsPIDOMWindow* aKey, | |
| 270 nsAutoPtr<nsTArray<WorkerPrivate*> >& aData, | |
| 271 void* aUserArg); | |
| 272 | |
| 273 static PLDHashOperator | |
| 274 FindSharedWorkerInfo(const nsACString& aKey, | |
| 275 SharedWorkerInfo* aData, | |
| 276 void* aUserArg); | |
| 277 | |
| 278 void | |
| 279 GetWorkersForWindow(nsPIDOMWindow* aWindow, | |
| 280 nsTArray<WorkerPrivate*>& aWorkers); | |
| 281 | |
| 282 bool | |
| 283 ScheduleWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate); | |
| 284 | |
| 285 static void | |
| 286 ShutdownIdleThreads(nsITimer* aTimer, void* aClosure); | |
| 287 | |
| 288 static void | |
| 289 WorkerPrefChanged(const char* aPrefName, void* aClosure); | |
| 290 | |
| 291 static void | |
| 292 JSVersionChanged(const char* aPrefName, void* aClosure); | |
| 293 }; | |
| 294 | |
| 295 END_WORKERS_NAMESPACE | |
| 296 | |
| 297 #endif /* mozilla_dom_workers_runtimeservice_h__ */ |
