michael@0: /* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
michael@0: /* vim: set ts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_dom_workers_runtimeservice_h__
michael@0: #define mozilla_dom_workers_runtimeservice_h__
michael@0: 
michael@0: #include "Workers.h"
michael@0: 
michael@0: #include "nsIObserver.h"
michael@0: 
michael@0: #include "mozilla/TimeStamp.h"
michael@0: #include "mozilla/dom/BindingDeclarations.h"
michael@0: #include "nsClassHashtable.h"
michael@0: #include "nsHashKeys.h"
michael@0: #include "nsTArray.h"
michael@0: 
michael@0: class nsIRunnable;
michael@0: class nsIThread;
michael@0: class nsITimer;
michael@0: class nsPIDOMWindow;
michael@0: 
michael@0: BEGIN_WORKERS_NAMESPACE
michael@0: 
michael@0: class SharedWorker;
michael@0: class WorkerPrivate;
michael@0: 
michael@0: class RuntimeService MOZ_FINAL : public nsIObserver
michael@0: {
michael@0: public:
michael@0:   class WorkerThread;
michael@0: 
michael@0: private:
michael@0:   struct SharedWorkerInfo
michael@0:   {
michael@0:     WorkerPrivate* mWorkerPrivate;
michael@0:     nsCString mScriptSpec;
michael@0:     nsCString mName;
michael@0: 
michael@0:     SharedWorkerInfo(WorkerPrivate* aWorkerPrivate,
michael@0:                      const nsACString& aScriptSpec,
michael@0:                      const nsACString& aName)
michael@0:     : mWorkerPrivate(aWorkerPrivate), mScriptSpec(aScriptSpec), mName(aName)
michael@0:     { }
michael@0:   };
michael@0: 
michael@0:   struct WorkerDomainInfo
michael@0:   {
michael@0:     nsCString mDomain;
michael@0:     nsTArray<WorkerPrivate*> mActiveWorkers;
michael@0:     nsTArray<WorkerPrivate*> mQueuedWorkers;
michael@0:     nsClassHashtable<nsCStringHashKey, SharedWorkerInfo> mSharedWorkerInfos;
michael@0:     uint32_t mChildWorkerCount;
michael@0: 
michael@0:     WorkerDomainInfo()
michael@0:     : mActiveWorkers(1), mChildWorkerCount(0)
michael@0:     { }
michael@0: 
michael@0:     uint32_t
michael@0:     ActiveWorkerCount() const
michael@0:     {
michael@0:       return mActiveWorkers.Length() + mChildWorkerCount;
michael@0:     }
michael@0:   };
michael@0: 
michael@0:   struct IdleThreadInfo
michael@0:   {
michael@0:     nsRefPtr<WorkerThread> mThread;
michael@0:     mozilla::TimeStamp mExpirationTime;
michael@0:   };
michael@0: 
michael@0:   struct MatchSharedWorkerInfo
michael@0:   {
michael@0:     WorkerPrivate* mWorkerPrivate;
michael@0:     SharedWorkerInfo* mSharedWorkerInfo;
michael@0: 
michael@0:     MatchSharedWorkerInfo(WorkerPrivate* aWorkerPrivate)
michael@0:     : mWorkerPrivate(aWorkerPrivate), mSharedWorkerInfo(nullptr)
michael@0:     { }
michael@0:   };
michael@0: 
michael@0:   mozilla::Mutex mMutex;
michael@0: 
michael@0:   // Protected by mMutex.
michael@0:   nsClassHashtable<nsCStringHashKey, WorkerDomainInfo> mDomainMap;
michael@0: 
michael@0:   // Protected by mMutex.
michael@0:   nsTArray<IdleThreadInfo> mIdleThreadArray;
michael@0: 
michael@0:   // *Not* protected by mMutex.
michael@0:   nsClassHashtable<nsPtrHashKey<nsPIDOMWindow>,
michael@0:                    nsTArray<WorkerPrivate*> > mWindowMap;
michael@0: 
michael@0:   // Only used on the main thread.
michael@0:   nsCOMPtr<nsITimer> mIdleThreadTimer;
michael@0: 
michael@0:   static JSSettings sDefaultJSSettings;
michael@0:   static bool sDefaultPreferences[WORKERPREF_COUNT];
michael@0: 
michael@0: public:
michael@0:   struct NavigatorProperties
michael@0:   {
michael@0:     nsString mAppName;
michael@0:     nsString mAppNameOverridden;
michael@0:     nsString mAppVersion;
michael@0:     nsString mAppVersionOverridden;
michael@0:     nsString mPlatform;
michael@0:     nsString mPlatformOverridden;
michael@0:     nsString mUserAgent;
michael@0:   };
michael@0: 
michael@0: private:
michael@0:   NavigatorProperties mNavigatorProperties;
michael@0: 
michael@0:   // True when the observer service holds a reference to this object.
michael@0:   bool mObserved;
michael@0:   bool mShuttingDown;
michael@0:   bool mNavigatorPropertiesLoaded;
michael@0: 
michael@0: public:
michael@0:   NS_DECL_ISUPPORTS
michael@0:   NS_DECL_NSIOBSERVER
michael@0: 
michael@0:   static RuntimeService*
michael@0:   GetOrCreateService();
michael@0: 
michael@0:   static RuntimeService*
michael@0:   GetService();
michael@0: 
michael@0:   bool
michael@0:   RegisterWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate);
michael@0: 
michael@0:   void
michael@0:   UnregisterWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate);
michael@0: 
michael@0:   void
michael@0:   CancelWorkersForWindow(nsPIDOMWindow* aWindow);
michael@0: 
michael@0:   void
michael@0:   SuspendWorkersForWindow(nsPIDOMWindow* aWindow);
michael@0: 
michael@0:   void
michael@0:   ResumeWorkersForWindow(nsPIDOMWindow* aWindow);
michael@0: 
michael@0:   nsresult
michael@0:   CreateSharedWorker(const GlobalObject& aGlobal,
michael@0:                      const nsAString& aScriptURL,
michael@0:                      const nsACString& aName,
michael@0:                      SharedWorker** aSharedWorker);
michael@0: 
michael@0:   void
michael@0:   ForgetSharedWorker(WorkerPrivate* aWorkerPrivate);
michael@0: 
michael@0:   const NavigatorProperties&
michael@0:   GetNavigatorProperties() const
michael@0:   {
michael@0:     return mNavigatorProperties;
michael@0:   }
michael@0: 
michael@0:   void
michael@0:   NoteIdleThread(WorkerThread* aThread);
michael@0: 
michael@0:   static void
michael@0:   GetDefaultJSSettings(JSSettings& aSettings)
michael@0:   {
michael@0:     AssertIsOnMainThread();
michael@0:     aSettings = sDefaultJSSettings;
michael@0:   }
michael@0: 
michael@0:   static void
michael@0:   GetDefaultPreferences(bool aPreferences[WORKERPREF_COUNT])
michael@0:   {
michael@0:     AssertIsOnMainThread();
michael@0:     memcpy(aPreferences, sDefaultPreferences, WORKERPREF_COUNT * sizeof(bool));
michael@0:   }
michael@0: 
michael@0:   static void
michael@0:   SetDefaultRuntimeAndContextOptions(
michael@0:                                     const JS::RuntimeOptions& aRuntimeOptions,
michael@0:                                     const JS::ContextOptions& aContentCxOptions,
michael@0:                                     const JS::ContextOptions& aChromeCxOptions)
michael@0:   {
michael@0:     AssertIsOnMainThread();
michael@0:     sDefaultJSSettings.runtimeOptions = aRuntimeOptions;
michael@0:     sDefaultJSSettings.content.contextOptions = aContentCxOptions;
michael@0:     sDefaultJSSettings.chrome.contextOptions = aChromeCxOptions;
michael@0:   }
michael@0: 
michael@0:   void
michael@0:   UpdateAppNameOverridePreference(const nsAString& aValue);
michael@0: 
michael@0:   void
michael@0:   UpdateAppVersionOverridePreference(const nsAString& aValue);
michael@0: 
michael@0:   void
michael@0:   UpdatePlatformOverridePreference(const nsAString& aValue);
michael@0: 
michael@0:   void
michael@0:   UpdateAllWorkerRuntimeAndContextOptions();
michael@0: 
michael@0:   void
michael@0:   UpdateAllWorkerPreference(WorkerPreference aPref, bool aValue);
michael@0: 
michael@0:   static void
michael@0:   SetDefaultJSGCSettings(JSGCParamKey aKey, uint32_t aValue)
michael@0:   {
michael@0:     AssertIsOnMainThread();
michael@0:     sDefaultJSSettings.ApplyGCSetting(aKey, aValue);
michael@0:   }
michael@0: 
michael@0:   void
michael@0:   UpdateAllWorkerMemoryParameter(JSGCParamKey aKey, uint32_t aValue);
michael@0: 
michael@0:   static uint32_t
michael@0:   GetContentCloseHandlerTimeoutSeconds()
michael@0:   {
michael@0:     return sDefaultJSSettings.content.maxScriptRuntime;
michael@0:   }
michael@0: 
michael@0:   static uint32_t
michael@0:   GetChromeCloseHandlerTimeoutSeconds()
michael@0:   {
michael@0:     return sDefaultJSSettings.chrome.maxScriptRuntime;
michael@0:   }
michael@0: 
michael@0: #ifdef JS_GC_ZEAL
michael@0:   static void
michael@0:   SetDefaultGCZeal(uint8_t aGCZeal, uint32_t aFrequency)
michael@0:   {
michael@0:     AssertIsOnMainThread();
michael@0:     sDefaultJSSettings.gcZeal = aGCZeal;
michael@0:     sDefaultJSSettings.gcZealFrequency = aFrequency;
michael@0:   }
michael@0: 
michael@0:   void
michael@0:   UpdateAllWorkerGCZeal();
michael@0: #endif
michael@0: 
michael@0:   void
michael@0:   GarbageCollectAllWorkers(bool aShrinking);
michael@0: 
michael@0:   void
michael@0:   CycleCollectAllWorkers();
michael@0: 
michael@0:   void
michael@0:   SendOfflineStatusChangeEventToAllWorkers(bool aIsOffline);
michael@0: 
michael@0: private:
michael@0:   RuntimeService();
michael@0:   ~RuntimeService();
michael@0: 
michael@0:   nsresult
michael@0:   Init();
michael@0: 
michael@0:   void
michael@0:   Shutdown();
michael@0: 
michael@0:   void
michael@0:   Cleanup();
michael@0: 
michael@0:   static PLDHashOperator
michael@0:   AddAllTopLevelWorkersToArray(const nsACString& aKey,
michael@0:                                WorkerDomainInfo* aData,
michael@0:                                void* aUserArg);
michael@0: 
michael@0:   static PLDHashOperator
michael@0:   RemoveSharedWorkerFromWindowMap(nsPIDOMWindow* aKey,
michael@0:                                   nsAutoPtr<nsTArray<WorkerPrivate*> >& aData,
michael@0:                                   void* aUserArg);
michael@0: 
michael@0:   static PLDHashOperator
michael@0:   FindSharedWorkerInfo(const nsACString& aKey,
michael@0:                        SharedWorkerInfo* aData,
michael@0:                        void* aUserArg);
michael@0: 
michael@0:   void
michael@0:   GetWorkersForWindow(nsPIDOMWindow* aWindow,
michael@0:                       nsTArray<WorkerPrivate*>& aWorkers);
michael@0: 
michael@0:   bool
michael@0:   ScheduleWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate);
michael@0: 
michael@0:   static void
michael@0:   ShutdownIdleThreads(nsITimer* aTimer, void* aClosure);
michael@0: 
michael@0:   static void
michael@0:   WorkerPrefChanged(const char* aPrefName, void* aClosure);
michael@0: 
michael@0:   static void
michael@0:   JSVersionChanged(const char* aPrefName, void* aClosure);
michael@0: };
michael@0: 
michael@0: END_WORKERS_NAMESPACE
michael@0: 
michael@0: #endif /* mozilla_dom_workers_runtimeservice_h__ */