1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/workers/RuntimeService.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,297 @@
1.4 +/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef mozilla_dom_workers_runtimeservice_h__
1.11 +#define mozilla_dom_workers_runtimeservice_h__
1.12 +
1.13 +#include "Workers.h"
1.14 +
1.15 +#include "nsIObserver.h"
1.16 +
1.17 +#include "mozilla/TimeStamp.h"
1.18 +#include "mozilla/dom/BindingDeclarations.h"
1.19 +#include "nsClassHashtable.h"
1.20 +#include "nsHashKeys.h"
1.21 +#include "nsTArray.h"
1.22 +
1.23 +class nsIRunnable;
1.24 +class nsIThread;
1.25 +class nsITimer;
1.26 +class nsPIDOMWindow;
1.27 +
1.28 +BEGIN_WORKERS_NAMESPACE
1.29 +
1.30 +class SharedWorker;
1.31 +class WorkerPrivate;
1.32 +
1.33 +class RuntimeService MOZ_FINAL : public nsIObserver
1.34 +{
1.35 +public:
1.36 + class WorkerThread;
1.37 +
1.38 +private:
1.39 + struct SharedWorkerInfo
1.40 + {
1.41 + WorkerPrivate* mWorkerPrivate;
1.42 + nsCString mScriptSpec;
1.43 + nsCString mName;
1.44 +
1.45 + SharedWorkerInfo(WorkerPrivate* aWorkerPrivate,
1.46 + const nsACString& aScriptSpec,
1.47 + const nsACString& aName)
1.48 + : mWorkerPrivate(aWorkerPrivate), mScriptSpec(aScriptSpec), mName(aName)
1.49 + { }
1.50 + };
1.51 +
1.52 + struct WorkerDomainInfo
1.53 + {
1.54 + nsCString mDomain;
1.55 + nsTArray<WorkerPrivate*> mActiveWorkers;
1.56 + nsTArray<WorkerPrivate*> mQueuedWorkers;
1.57 + nsClassHashtable<nsCStringHashKey, SharedWorkerInfo> mSharedWorkerInfos;
1.58 + uint32_t mChildWorkerCount;
1.59 +
1.60 + WorkerDomainInfo()
1.61 + : mActiveWorkers(1), mChildWorkerCount(0)
1.62 + { }
1.63 +
1.64 + uint32_t
1.65 + ActiveWorkerCount() const
1.66 + {
1.67 + return mActiveWorkers.Length() + mChildWorkerCount;
1.68 + }
1.69 + };
1.70 +
1.71 + struct IdleThreadInfo
1.72 + {
1.73 + nsRefPtr<WorkerThread> mThread;
1.74 + mozilla::TimeStamp mExpirationTime;
1.75 + };
1.76 +
1.77 + struct MatchSharedWorkerInfo
1.78 + {
1.79 + WorkerPrivate* mWorkerPrivate;
1.80 + SharedWorkerInfo* mSharedWorkerInfo;
1.81 +
1.82 + MatchSharedWorkerInfo(WorkerPrivate* aWorkerPrivate)
1.83 + : mWorkerPrivate(aWorkerPrivate), mSharedWorkerInfo(nullptr)
1.84 + { }
1.85 + };
1.86 +
1.87 + mozilla::Mutex mMutex;
1.88 +
1.89 + // Protected by mMutex.
1.90 + nsClassHashtable<nsCStringHashKey, WorkerDomainInfo> mDomainMap;
1.91 +
1.92 + // Protected by mMutex.
1.93 + nsTArray<IdleThreadInfo> mIdleThreadArray;
1.94 +
1.95 + // *Not* protected by mMutex.
1.96 + nsClassHashtable<nsPtrHashKey<nsPIDOMWindow>,
1.97 + nsTArray<WorkerPrivate*> > mWindowMap;
1.98 +
1.99 + // Only used on the main thread.
1.100 + nsCOMPtr<nsITimer> mIdleThreadTimer;
1.101 +
1.102 + static JSSettings sDefaultJSSettings;
1.103 + static bool sDefaultPreferences[WORKERPREF_COUNT];
1.104 +
1.105 +public:
1.106 + struct NavigatorProperties
1.107 + {
1.108 + nsString mAppName;
1.109 + nsString mAppNameOverridden;
1.110 + nsString mAppVersion;
1.111 + nsString mAppVersionOverridden;
1.112 + nsString mPlatform;
1.113 + nsString mPlatformOverridden;
1.114 + nsString mUserAgent;
1.115 + };
1.116 +
1.117 +private:
1.118 + NavigatorProperties mNavigatorProperties;
1.119 +
1.120 + // True when the observer service holds a reference to this object.
1.121 + bool mObserved;
1.122 + bool mShuttingDown;
1.123 + bool mNavigatorPropertiesLoaded;
1.124 +
1.125 +public:
1.126 + NS_DECL_ISUPPORTS
1.127 + NS_DECL_NSIOBSERVER
1.128 +
1.129 + static RuntimeService*
1.130 + GetOrCreateService();
1.131 +
1.132 + static RuntimeService*
1.133 + GetService();
1.134 +
1.135 + bool
1.136 + RegisterWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate);
1.137 +
1.138 + void
1.139 + UnregisterWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate);
1.140 +
1.141 + void
1.142 + CancelWorkersForWindow(nsPIDOMWindow* aWindow);
1.143 +
1.144 + void
1.145 + SuspendWorkersForWindow(nsPIDOMWindow* aWindow);
1.146 +
1.147 + void
1.148 + ResumeWorkersForWindow(nsPIDOMWindow* aWindow);
1.149 +
1.150 + nsresult
1.151 + CreateSharedWorker(const GlobalObject& aGlobal,
1.152 + const nsAString& aScriptURL,
1.153 + const nsACString& aName,
1.154 + SharedWorker** aSharedWorker);
1.155 +
1.156 + void
1.157 + ForgetSharedWorker(WorkerPrivate* aWorkerPrivate);
1.158 +
1.159 + const NavigatorProperties&
1.160 + GetNavigatorProperties() const
1.161 + {
1.162 + return mNavigatorProperties;
1.163 + }
1.164 +
1.165 + void
1.166 + NoteIdleThread(WorkerThread* aThread);
1.167 +
1.168 + static void
1.169 + GetDefaultJSSettings(JSSettings& aSettings)
1.170 + {
1.171 + AssertIsOnMainThread();
1.172 + aSettings = sDefaultJSSettings;
1.173 + }
1.174 +
1.175 + static void
1.176 + GetDefaultPreferences(bool aPreferences[WORKERPREF_COUNT])
1.177 + {
1.178 + AssertIsOnMainThread();
1.179 + memcpy(aPreferences, sDefaultPreferences, WORKERPREF_COUNT * sizeof(bool));
1.180 + }
1.181 +
1.182 + static void
1.183 + SetDefaultRuntimeAndContextOptions(
1.184 + const JS::RuntimeOptions& aRuntimeOptions,
1.185 + const JS::ContextOptions& aContentCxOptions,
1.186 + const JS::ContextOptions& aChromeCxOptions)
1.187 + {
1.188 + AssertIsOnMainThread();
1.189 + sDefaultJSSettings.runtimeOptions = aRuntimeOptions;
1.190 + sDefaultJSSettings.content.contextOptions = aContentCxOptions;
1.191 + sDefaultJSSettings.chrome.contextOptions = aChromeCxOptions;
1.192 + }
1.193 +
1.194 + void
1.195 + UpdateAppNameOverridePreference(const nsAString& aValue);
1.196 +
1.197 + void
1.198 + UpdateAppVersionOverridePreference(const nsAString& aValue);
1.199 +
1.200 + void
1.201 + UpdatePlatformOverridePreference(const nsAString& aValue);
1.202 +
1.203 + void
1.204 + UpdateAllWorkerRuntimeAndContextOptions();
1.205 +
1.206 + void
1.207 + UpdateAllWorkerPreference(WorkerPreference aPref, bool aValue);
1.208 +
1.209 + static void
1.210 + SetDefaultJSGCSettings(JSGCParamKey aKey, uint32_t aValue)
1.211 + {
1.212 + AssertIsOnMainThread();
1.213 + sDefaultJSSettings.ApplyGCSetting(aKey, aValue);
1.214 + }
1.215 +
1.216 + void
1.217 + UpdateAllWorkerMemoryParameter(JSGCParamKey aKey, uint32_t aValue);
1.218 +
1.219 + static uint32_t
1.220 + GetContentCloseHandlerTimeoutSeconds()
1.221 + {
1.222 + return sDefaultJSSettings.content.maxScriptRuntime;
1.223 + }
1.224 +
1.225 + static uint32_t
1.226 + GetChromeCloseHandlerTimeoutSeconds()
1.227 + {
1.228 + return sDefaultJSSettings.chrome.maxScriptRuntime;
1.229 + }
1.230 +
1.231 +#ifdef JS_GC_ZEAL
1.232 + static void
1.233 + SetDefaultGCZeal(uint8_t aGCZeal, uint32_t aFrequency)
1.234 + {
1.235 + AssertIsOnMainThread();
1.236 + sDefaultJSSettings.gcZeal = aGCZeal;
1.237 + sDefaultJSSettings.gcZealFrequency = aFrequency;
1.238 + }
1.239 +
1.240 + void
1.241 + UpdateAllWorkerGCZeal();
1.242 +#endif
1.243 +
1.244 + void
1.245 + GarbageCollectAllWorkers(bool aShrinking);
1.246 +
1.247 + void
1.248 + CycleCollectAllWorkers();
1.249 +
1.250 + void
1.251 + SendOfflineStatusChangeEventToAllWorkers(bool aIsOffline);
1.252 +
1.253 +private:
1.254 + RuntimeService();
1.255 + ~RuntimeService();
1.256 +
1.257 + nsresult
1.258 + Init();
1.259 +
1.260 + void
1.261 + Shutdown();
1.262 +
1.263 + void
1.264 + Cleanup();
1.265 +
1.266 + static PLDHashOperator
1.267 + AddAllTopLevelWorkersToArray(const nsACString& aKey,
1.268 + WorkerDomainInfo* aData,
1.269 + void* aUserArg);
1.270 +
1.271 + static PLDHashOperator
1.272 + RemoveSharedWorkerFromWindowMap(nsPIDOMWindow* aKey,
1.273 + nsAutoPtr<nsTArray<WorkerPrivate*> >& aData,
1.274 + void* aUserArg);
1.275 +
1.276 + static PLDHashOperator
1.277 + FindSharedWorkerInfo(const nsACString& aKey,
1.278 + SharedWorkerInfo* aData,
1.279 + void* aUserArg);
1.280 +
1.281 + void
1.282 + GetWorkersForWindow(nsPIDOMWindow* aWindow,
1.283 + nsTArray<WorkerPrivate*>& aWorkers);
1.284 +
1.285 + bool
1.286 + ScheduleWorker(JSContext* aCx, WorkerPrivate* aWorkerPrivate);
1.287 +
1.288 + static void
1.289 + ShutdownIdleThreads(nsITimer* aTimer, void* aClosure);
1.290 +
1.291 + static void
1.292 + WorkerPrefChanged(const char* aPrefName, void* aClosure);
1.293 +
1.294 + static void
1.295 + JSVersionChanged(const char* aPrefName, void* aClosure);
1.296 +};
1.297 +
1.298 +END_WORKERS_NAMESPACE
1.299 +
1.300 +#endif /* mozilla_dom_workers_runtimeservice_h__ */
