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Diffstat (limited to '')
| -rw-r--r-- | xpcom/components/nsComponentManager.h | 218 |
1 files changed, 218 insertions, 0 deletions
diff --git a/xpcom/components/nsComponentManager.h b/xpcom/components/nsComponentManager.h new file mode 100644 index 0000000000..5ad555b53b --- /dev/null +++ b/xpcom/components/nsComponentManager.h @@ -0,0 +1,218 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef nsComponentManager_h__ +#define nsComponentManager_h__ + +#include "nsXPCOM.h" + +#include "nsIComponentManager.h" +#include "nsIComponentRegistrar.h" +#include "nsIMemoryReporter.h" +#include "nsIServiceManager.h" +#include "nsIFile.h" +#include "mozilla/ArenaAllocator.h" +#include "mozilla/Atomics.h" +#include "mozilla/MemoryReporting.h" +#include "mozilla/Module.h" +#include "mozilla/Monitor.h" +#include "mozilla/UniquePtr.h" +#include "nsXULAppAPI.h" +#include "nsIFactory.h" +#include "nsIInterfaceRequestor.h" +#include "nsIInterfaceRequestorUtils.h" +#include "PLDHashTable.h" +#include "prtime.h" +#include "nsCOMPtr.h" +#include "nsWeakReference.h" +#include "nsCOMArray.h" +#include "nsTHashMap.h" +#include "nsInterfaceHashtable.h" +#include "nsClassHashtable.h" +#include "nsTArray.h" + +#include "mozilla/Components.h" +#include "mozilla/Maybe.h" +#include "mozilla/Omnijar.h" +#include "mozilla/Attributes.h" + +struct nsFactoryEntry; +struct PRThread; + +#define NS_COMPONENTMANAGER_CID \ + { /* 91775d60-d5dc-11d2-92fb-00e09805570f */ \ + 0x91775d60, 0xd5dc, 0x11d2, { \ + 0x92, 0xfb, 0x00, 0xe0, 0x98, 0x05, 0x57, 0x0f \ + } \ + } + +//////////////////////////////////////////////////////////////////////////////// + +namespace { +class EntryWrapper; +} // namespace + +namespace mozilla { +namespace xpcom { + +bool ProcessSelectorMatches(Module::ProcessSelector aSelector); +bool FastProcessSelectorMatches(Module::ProcessSelector aSelector); + +} // namespace xpcom +} // namespace mozilla + +class nsComponentManagerImpl final : public nsIComponentManager, + public nsIServiceManager, + public nsSupportsWeakReference, + public nsIComponentRegistrar, + public nsIInterfaceRequestor, + public nsIMemoryReporter { + public: + NS_DECL_THREADSAFE_ISUPPORTS + NS_DECL_NSIINTERFACEREQUESTOR + NS_DECL_NSICOMPONENTMANAGER + NS_DECL_NSICOMPONENTREGISTRAR + NS_DECL_NSIMEMORYREPORTER + + static nsresult Create(REFNSIID aIID, void** aResult); + + nsresult RegistryLocationForFile(nsIFile* aFile, nsCString& aResult); + nsresult FileForRegistryLocation(const nsCString& aLocation, nsIFile** aSpec); + + NS_DECL_NSISERVICEMANAGER + + // nsComponentManagerImpl methods: + nsComponentManagerImpl(); + + static nsComponentManagerImpl* gComponentManager; + nsresult Init(); + + nsresult Shutdown(void); + + nsresult FreeServices(); + + already_AddRefed<nsIFactory> FindFactory(const nsCID& aClass); + already_AddRefed<nsIFactory> FindFactory(const char* aContractID, + uint32_t aContractIDLen); + + already_AddRefed<nsIFactory> LoadFactory(nsFactoryEntry* aEntry); + + nsTHashMap<nsIDPointerHashKey, nsFactoryEntry*> mFactories; + nsTHashMap<nsCStringHashKey, nsFactoryEntry*> mContractIDs; + + mozilla::Monitor mLock MOZ_UNANNOTATED; + + mozilla::Maybe<EntryWrapper> LookupByCID(const nsID& aCID); + mozilla::Maybe<EntryWrapper> LookupByCID(const mozilla::MonitorAutoLock&, + const nsID& aCID); + + mozilla::Maybe<EntryWrapper> LookupByContractID( + const nsACString& aContractID); + mozilla::Maybe<EntryWrapper> LookupByContractID( + const mozilla::MonitorAutoLock&, const nsACString& aContractID); + + nsresult GetService(mozilla::xpcom::ModuleID, const nsIID& aIID, + void** aResult); + + static bool JSLoaderReady() { return gComponentManager->mJSLoaderReady; } + + static void InitializeStaticModules(); + static void InitializeModuleLocations(); + + struct ComponentLocation { + NSLocationType type; + mozilla::FileLocation location; + }; + + class ComponentLocationComparator { + public: + bool Equals(const ComponentLocation& aA, + const ComponentLocation& aB) const { + return (aA.type == aB.type && aA.location.Equals(aB.location)); + } + }; + + static nsTArray<ComponentLocation>* sModuleLocations; + + // Mutex not held + void RegisterManifest(NSLocationType aType, mozilla::FileLocation& aFile, + bool aChromeOnly); + + struct ManifestProcessingContext { + ManifestProcessingContext(NSLocationType aType, + mozilla::FileLocation& aFile, bool aChromeOnly) + : mType(aType), mFile(aFile), mChromeOnly(aChromeOnly) {} + + ~ManifestProcessingContext() = default; + + NSLocationType mType; + mozilla::FileLocation mFile; + bool mChromeOnly; + }; + + void ManifestManifest(ManifestProcessingContext& aCx, int aLineNo, + char* const* aArgv); + void ManifestCategory(ManifestProcessingContext& aCx, int aLineNo, + char* const* aArgv); + + void RereadChromeManifests(bool aChromeOnly = true); + + // Shutdown + enum { + NOT_INITIALIZED, + NORMAL, + SHUTDOWN_IN_PROGRESS, + SHUTDOWN_COMPLETE + } mStatus; + + struct PendingServiceInfo { + const nsCID* cid; + PRThread* thread; + }; + + inline PendingServiceInfo* AddPendingService(const nsCID& aServiceCID, + PRThread* aThread); + inline void RemovePendingService(mozilla::MonitorAutoLock& aLock, + const nsCID& aServiceCID); + inline PRThread* GetPendingServiceThread(const nsCID& aServiceCID) const; + + nsTArray<PendingServiceInfo> mPendingServices; + + bool mJSLoaderReady = false; + + size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const; + + private: + ~nsComponentManagerImpl(); + + nsresult GetServiceLocked(mozilla::Maybe<mozilla::MonitorAutoLock>& aLock, + EntryWrapper& aEntry, const nsIID& aIID, + void** aResult); +}; + +#define NS_MAX_FILENAME_LEN 1024 + +#define NS_ERROR_IS_DIR NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_XPCOM, 24) + +struct nsFactoryEntry { + // nsIComponentRegistrar.registerFactory support + nsFactoryEntry(const nsCID& aClass, nsIFactory* aFactory); + + ~nsFactoryEntry() = default; + + already_AddRefed<nsIFactory> GetFactory(); + + nsresult CreateInstance(const nsIID& aIID, void** aResult); + + size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf); + + const nsCID mCID; + + nsCOMPtr<nsIFactory> mFactory; + nsCOMPtr<nsISupports> mServiceObject; +}; + +#endif // nsComponentManager_h__ |