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-rw-r--r--xpcom/components/nsComponentManager.h218
1 files changed, 218 insertions, 0 deletions
diff --git a/xpcom/components/nsComponentManager.h b/xpcom/components/nsComponentManager.h
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+/* -*- 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__