/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * The contents of this file are subject to the Netscape Public * License Version 1.1 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or * implied. See the License for the specific language governing * rights and limitations under the License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is Netscape * Communications Corporation. Portions created by Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All * Rights Reserved. * * This Original Code has been modified by IBM Corporation. * Modifications made by IBM described herein are * Copyright (c) International Business Machines * Corporation, 2000 * * Modifications to Mozilla code or documentation * identified per MPL Section 3.3 * * Date Modified by Description of modification * 04/20/2000 IBM Corp. Added PR_CALLBACK for Optlink use in OS2 */ #include #include "nscore.h" #include "nsISupports.h" #include "nsCRT.h" #include "nspr.h" #include "NSReg.h" #include "nsAutoLock.h" #include "nsCOMPtr.h" #include "nsComponentManager.h" #include "nsComponentManagerObsolete.h" #include "nsDirectoryService.h" #include "nsDirectoryServiceDefs.h" #include "nsICategoryManager.h" #include "nsIComponentLoader.h" #include "nsIEnumerator.h" #include "nsIInterfaceInfoManager.h" #include "nsIModule.h" #include "nsIObserverService.h" #include "nsISimpleEnumerator.h" #include "nsISupportsPrimitives.h" #include "nsLocalFile.h" #include "nsNativeComponentLoader.h" #include "nsRegistry.h" #include "nsXPIDLString.h" #include "prcmon.h" #include "prthread.h" /* XXX: only used for the NSPR initialization hack (rick) */ #include "xptinfo.h" // this after nsISupports, to pick up IID so that xpt stuff doesn't try to define it itself... #ifdef XP_BEOS #include #include #endif // Logging of debug output #ifdef MOZ_LOGGING #define FORCE_PR_LOG /* Allow logging in the release build */ #endif #include "prlog.h" PRLogModuleInfo* nsComponentManagerLog = NULL; #if defined(DEBUG) #define SHOW_DENIED_ON_SHUTDOWN #endif // Loader Types #define NS_LOADER_DATA_ALLOC_STEP 6 // Bloated registry buffer size to improve startup performance -- needs to // be big enough to fit the entire file into memory or it'll thrash. // 512K is big enough to allow for some future growth in the registry. #define BIG_REGISTRY_BUFLEN (512*1024) // Common Key Names const char classIDKeyName[]="classID"; const char classesKeyName[]="contractID"; const char componentLoadersKeyName[]="componentLoaders"; const char componentsKeyName[]="components"; const char xpcomComponentsKeyName[]="software/mozilla/XPCOM/components"; const char xpcomKeyName[]="software/mozilla/XPCOM"; // Common Value Names const char classIDValueName[]="ClassID"; const char classNameValueName[]="ClassName"; const char componentCountValueName[]="ComponentsCount"; const char componentTypeValueName[]="ComponentType"; const char contractIDValueName[]="ContractID"; const char fileSizeValueName[]="FileSize"; const char inprocServerValueName[]="InprocServer"; const char lastModValueName[]="LastModTimeStamp"; const char nativeComponentType[]="application/x-mozilla-native"; const char staticComponentType[]="application/x-mozilla-static"; const char versionValueName[]="VersionString"; const static char XPCOM_ABSCOMPONENT_PREFIX[] = "abs:"; const static char XPCOM_RELCOMPONENT_PREFIX[] = "rel:"; const char XPCOM_LIB_PREFIX[] = "lib:"; // Nonexistent factory entry // This is used to mark non-existent contractid mappings static nsFactoryEntry * kNonExistentContractID = (nsFactoryEntry*) 1; #define NS_EMPTY_IID \ { \ 0x00000000, \ 0x0000, \ 0x0000, \ {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} \ } NS_DEFINE_CID(kEmptyCID, NS_EMPTY_IID); extern PRBool gXPCOMShuttingDown; // Build is using USE_NSREG to turn off xpcom using registry // but internally we use USE_REGISTRY. Map them propertly. #ifdef USE_NSREG #define USE_REGISTRY #endif /* USE_NSREG */ nsresult nsCreateInstanceByCID::operator()( const nsIID& aIID, void** aInstancePtr ) const { nsresult status = nsComponentManager::CreateInstance(mCID, mOuter, aIID, aInstancePtr); if ( NS_FAILED(status) ) *aInstancePtr = 0; if ( mErrorPtr ) *mErrorPtr = status; return status; } nsresult nsCreateInstanceByContractID::operator()( const nsIID& aIID, void** aInstancePtr ) const { nsresult status; if ( mContractID ) { if ( NS_FAILED(status = nsComponentManager::CreateInstance(mContractID, mOuter, aIID, aInstancePtr)) ) *aInstancePtr = 0; } else status = NS_ERROR_NULL_POINTER; if ( mErrorPtr ) *mErrorPtr = status; return status; } nsresult nsCreateInstanceFromCategory::operator()( const nsIID& aIID, void** aInstancePtr ) const { /* * If I were a real man, I would consolidate this with * nsGetServiceFromContractID::operator(). */ nsresult status; nsXPIDLCString value; nsCOMPtr catman = do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &status); if (NS_FAILED(status)) goto error; if (!mCategory || !mEntry) { // when categories have defaults, use that for null mEntry status = NS_ERROR_NULL_POINTER; goto error; } /* find the contractID for category.entry */ status = catman->GetCategoryEntry(mCategory, mEntry, getter_Copies(value)); if (NS_FAILED(status)) goto error; if (!value) { status = NS_ERROR_SERVICE_NOT_FOUND; goto error; } status = nsComponentManager::CreateInstance(value, mOuter, aIID, aInstancePtr); error: if (NS_FAILED(status)) { *aInstancePtr = 0; } *mErrorPtr = status; return status; } nsresult nsGetServiceByCID::operator()( const nsIID& aIID, void** aInstancePtr ) const { nsresult status = NS_ERROR_FAILURE; if ( mServiceManager ) { status = mServiceManager->GetService(mCID, aIID, (void**)aInstancePtr); } else { nsCOMPtr mgr; NS_GetServiceManager(getter_AddRefs(mgr)); if (mgr) status = mgr->GetService(mCID, aIID, (void**)aInstancePtr); } if ( NS_FAILED(status) ) *aInstancePtr = 0; if ( mErrorPtr ) *mErrorPtr = status; return status; } nsresult nsGetServiceByContractID::operator()( const nsIID& aIID, void** aInstancePtr ) const { nsresult status = NS_ERROR_FAILURE; if ( mServiceManager ) { status = mServiceManager->GetServiceByContractID(mContractID, aIID, (void**)aInstancePtr); } else { nsCOMPtr mgr; NS_GetServiceManager(getter_AddRefs(mgr)); if (mgr) status = mgr->GetServiceByContractID(mContractID, aIID, (void**)aInstancePtr); } if ( NS_FAILED(status) ) *aInstancePtr = 0; if ( mErrorPtr ) *mErrorPtr = status; return status; } nsresult nsGetServiceFromCategory::operator()( const nsIID& aIID, void** aInstancePtr) const { nsresult status; nsXPIDLCString value; nsCOMPtr catman = do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &status); if (NS_FAILED(status)) goto error; if (!mCategory || !mEntry) { // when categories have defaults, use that for null mEntry status = NS_ERROR_NULL_POINTER; goto error; } /* find the contractID for category.entry */ status = catman->GetCategoryEntry(mCategory, mEntry, getter_Copies(value)); if (NS_FAILED(status)) goto error; if (!value) { status = NS_ERROR_SERVICE_NOT_FOUND; goto error; } if ( mServiceManager ) { status = mServiceManager->GetServiceByContractID(value, aIID, (void**)aInstancePtr); } else { nsCOMPtr mgr; NS_GetServiceManager(getter_AddRefs(mgr)); if (mgr) status = mgr->GetServiceByContractID(value, aIID, (void**)aInstancePtr); } if (NS_FAILED(status)) { error: *aInstancePtr = 0; } *mErrorPtr = status; return status; } //////////////////////////////////////////////////////////////////////////////// // Hashtable Callbacks //////////////////////////////////////////////////////////////////////////////// PRBool PR_CALLBACK nsFactoryEntry_Destroy(nsHashKey *aKey, void *aData, void* closure); PR_STATIC_CALLBACK(const void *) factory_GetKey(PLDHashTable *aTable, PLDHashEntryHdr *aHdr) { nsFactoryTableEntry* entry = NS_STATIC_CAST(nsFactoryTableEntry*, aHdr); return &entry->mFactoryEntry->cid; } PR_STATIC_CALLBACK(PLDHashNumber) factory_HashKey(PLDHashTable *aTable, const void *aKey) { const nsCID *cidp = NS_REINTERPRET_CAST(const nsCID*, aKey); return cidp->m0; } PR_STATIC_CALLBACK(PRBool) factory_MatchEntry(PLDHashTable *aTable, const PLDHashEntryHdr *aHdr, const void *aKey) { const nsFactoryTableEntry* entry = NS_STATIC_CAST(const nsFactoryTableEntry*, aHdr); const nsCID *cidp = NS_REINTERPRET_CAST(const nsCID*, aKey); return (entry->mFactoryEntry->cid).Equals(*cidp); } PR_STATIC_CALLBACK(void) factory_ClearEntry(PLDHashTable *aTable, PLDHashEntryHdr *aHdr) { nsFactoryTableEntry* entry = NS_STATIC_CAST(nsFactoryTableEntry*, aHdr); delete entry->mFactoryEntry; PL_DHashClearEntryStub(aTable, aHdr); } static PLDHashTableOps factory_DHashTableOps = { PL_DHashAllocTable, PL_DHashFreeTable, factory_GetKey, factory_HashKey, factory_MatchEntry, PL_DHashMoveEntryStub, factory_ClearEntry, PL_DHashFinalizeStub, }; PR_STATIC_CALLBACK(const void *) contractID_GetKey(PLDHashTable *aTable, PLDHashEntryHdr *aHdr) { nsContractIDTableEntry* entry = NS_STATIC_CAST(nsContractIDTableEntry*, aHdr); return entry->mContractID; } PR_STATIC_CALLBACK(PRBool) contractID_MatchEntry(PLDHashTable *aTable, const PLDHashEntryHdr *aHdr, const void *aKey) { const nsContractIDTableEntry* entry = NS_STATIC_CAST(const nsContractIDTableEntry*, aHdr); const char* contractID = NS_REINTERPRET_CAST(const char*, aKey); return strcmp(entry->mContractID, contractID) == 0; } PR_STATIC_CALLBACK(void) contractID_ClearEntry(PLDHashTable *aTable, PLDHashEntryHdr *aHdr) { nsContractIDTableEntry* entry = NS_STATIC_CAST(nsContractIDTableEntry*, aHdr); if (entry->mFactoryEntry != kNonExistentContractID && entry->mFactoryEntry->typeIndex == NS_COMPONENT_TYPE_SERVICE_ONLY && entry->mFactoryEntry->cid.Equals(kEmptyCID)) { // this object is owned by the hash. Time to delete it. delete entry->mFactoryEntry; } nsCRT::free(entry->mContractID); PL_DHashClearEntryStub(aTable, aHdr); } static PLDHashTableOps contractID_DHashTableOps = { PL_DHashAllocTable, PL_DHashFreeTable, contractID_GetKey, PL_DHashStringKey, contractID_MatchEntry, PL_DHashMoveEntryStub, contractID_ClearEntry, PL_DHashFinalizeStub, }; //////////////////////////////////////////////////////////////////////////////// // nsFactoryEntry //////////////////////////////////////////////////////////////////////////////// MOZ_DECL_CTOR_COUNTER(nsFactoryEntry) nsFactoryEntry::nsFactoryEntry(const nsCID &aClass, const char *aLocation, int aType) : cid(aClass), typeIndex(aType) { MOZ_COUNT_CTOR(nsFactoryEntry); location = nsCRT::strdup(aLocation); } nsFactoryEntry::nsFactoryEntry(const nsCID &aClass, nsIFactory *aFactory) : cid(aClass), typeIndex(NS_COMPONENT_TYPE_FACTORY_ONLY) { MOZ_COUNT_CTOR(nsFactoryEntry); factory = aFactory; location = nsnull; } nsFactoryEntry::~nsFactoryEntry(void) { MOZ_COUNT_DTOR(nsFactoryEntry); if (location) nsCRT::free(location); factory = 0; } nsresult nsFactoryEntry::ReInit(const nsCID &aClass, const char *aLocation, int aType) { NS_ENSURE_TRUE(typeIndex != NS_COMPONENT_TYPE_FACTORY_ONLY, NS_ERROR_INVALID_ARG); // cid has to match // SERVICE_ONLY entries can be promoted to an entry of another type NS_ENSURE_TRUE((typeIndex == NS_COMPONENT_TYPE_SERVICE_ONLY || cid.Equals(aClass)), NS_ERROR_INVALID_ARG); location = nsCRT::strdup(aLocation); typeIndex = aType; return NS_OK; } nsresult nsFactoryEntry::ReInit(const nsCID &aClass, nsIFactory *aFactory) { // cids has to match // SERVICE_ONLY entries can be promoted to an entry of another type NS_ENSURE_TRUE((typeIndex == NS_COMPONENT_TYPE_SERVICE_ONLY || cid.Equals(aClass)), NS_ERROR_INVALID_ARG); // We are going to let native component be overridden by a factory. factory = aFactory; typeIndex = NS_COMPONENT_TYPE_FACTORY_ONLY; return NS_OK; } //////////////////////////////////////////////////////////////////////////////// // Hashtable Enumeration //////////////////////////////////////////////////////////////////////////////// typedef NS_CALLBACK(EnumeratorConverter)(PLDHashTable *table, const PLDHashEntryHdr *hdr, void *data, nsISupports **retval); class PLDHashTableEnumeratorImpl : public nsIBidirectionalEnumerator, public nsISimpleEnumerator { public: NS_DECL_ISUPPORTS NS_DECL_NSIENUMERATOR NS_DECL_NSIBIDIRECTIONALENUMERATOR NS_DECL_NSISIMPLEENUMERATOR virtual ~PLDHashTableEnumeratorImpl(); PLDHashTableEnumeratorImpl(PLDHashTable *table, EnumeratorConverter converter, void *converterData); PRInt32 Count() { return mCount; } private: PLDHashTableEnumeratorImpl(); /* no implementation */ NS_IMETHODIMP ReleaseElements(); nsVoidArray mElements; PRInt32 mCount, mCurrent; PRMonitor* mMonitor; struct Closure { PRBool succeeded; EnumeratorConverter converter; void *data; PLDHashTableEnumeratorImpl *impl; }; static PLDHashOperator PR_CALLBACK Enumerator(PLDHashTable *table, PLDHashEntryHdr *hdr, PRUint32 number, void *data); }; // static PLDHashOperator PR_CALLBACK PLDHashTableEnumeratorImpl::Enumerator(PLDHashTable *table, PLDHashEntryHdr *hdr, PRUint32 number, void *data) { Closure *c = NS_REINTERPRET_CAST(Closure *, data); nsISupports *converted; if (NS_FAILED(c->converter(table, hdr, c->data, &converted)) || !c->impl->mElements.AppendElement(converted)) { c->succeeded = PR_FALSE; return PL_DHASH_STOP; } c->succeeded = PR_TRUE; return PL_DHASH_NEXT; } PLDHashTableEnumeratorImpl::PLDHashTableEnumeratorImpl(PLDHashTable *table, EnumeratorConverter converter, void *converterData) : mCurrent(0) { mMonitor = nsAutoMonitor::NewMonitor("PLDHashTableEnumeratorImpl"); NS_ASSERTION(mMonitor, "NULL Monitor"); nsAutoMonitor mon(mMonitor); NS_INIT_REFCNT(); Closure c = { PR_FALSE, converter, converterData, this }; mCount = PL_DHashTableEnumerate(table, Enumerator, &c); if (!c.succeeded) { ReleaseElements(); mCount = 0; } } NS_IMPL_ISUPPORTS3(PLDHashTableEnumeratorImpl, nsIBidirectionalEnumerator, nsIEnumerator, nsISimpleEnumerator); PLDHashTableEnumeratorImpl::~PLDHashTableEnumeratorImpl() { (void) ReleaseElements(); // Destroy the Lock if (mMonitor) PR_DestroyMonitor(mMonitor); } NS_IMETHODIMP PLDHashTableEnumeratorImpl::ReleaseElements() { for (PRInt32 i = 0; i < mCount; i++) { nsISupports *supports = NS_REINTERPRET_CAST(nsISupports *, mElements[i]); NS_IF_RELEASE(supports); } return NS_OK; } NS_IMETHODIMP PL_NewDHashTableEnumerator(PLDHashTable *table, EnumeratorConverter converter, void *converterData, PLDHashTableEnumeratorImpl **retval) { PLDHashTableEnumeratorImpl *impl = new PLDHashTableEnumeratorImpl(table, converter, converterData); if (!impl) return NS_ERROR_OUT_OF_MEMORY; if (impl->Count() == -1) { // conversion failed delete impl; return NS_ERROR_FAILURE; } NS_ADDREF(*retval = impl); return NS_OK; } NS_IMETHODIMP PLDHashTableEnumeratorImpl::First() { if (!mCount) return NS_ERROR_FAILURE; mCurrent = 0; return NS_OK; } NS_IMETHODIMP PLDHashTableEnumeratorImpl::Last() { if (!mCount) return NS_ERROR_FAILURE; mCurrent = mCount - 1; return NS_OK; } NS_IMETHODIMP PLDHashTableEnumeratorImpl::Prev() { if (!mCurrent) return NS_ERROR_FAILURE; mCurrent--; return NS_OK; } NS_IMETHODIMP PLDHashTableEnumeratorImpl::Next() { // If empty or we're past the end, or we are at the end return error if (!mCount || (mCurrent == mCount) || (++mCurrent == mCount)) return NS_ERROR_FAILURE; return NS_OK; } NS_IMETHODIMP PLDHashTableEnumeratorImpl::CurrentItem(nsISupports **retval) { if (!mCount || mCurrent == mCount) return NS_ERROR_FAILURE; *retval = NS_REINTERPRET_CAST(nsISupports *, mElements[mCurrent]); if (*retval) NS_ADDREF(*retval); return NS_OK; } NS_IMETHODIMP PLDHashTableEnumeratorImpl::IsDone() { if (!mCount || (mCurrent == mCount)) return NS_OK; return NS_COMFALSE; } NS_IMETHODIMP PLDHashTableEnumeratorImpl::HasMoreElements(PRBool *_retval) { if (!mCount || (mCurrent == mCount)) *_retval = PR_FALSE; else *_retval = PR_TRUE; return NS_OK; } NS_IMETHODIMP PLDHashTableEnumeratorImpl::GetNext(nsISupports **_retval) { nsresult rv = Next(); if (NS_FAILED(rv)) return rv; return CurrentItem(_retval); } static NS_IMETHODIMP ConvertFactoryEntryToCID(PLDHashTable *table, const PLDHashEntryHdr *hdr, void *data, nsISupports **retval) { nsresult rv; nsCOMPtr wrapper = do_CreateInstance(NS_SUPPORTS_ID_CONTRACTID, &rv); NS_ENSURE_SUCCESS(rv, rv); const nsFactoryTableEntry *entry = NS_REINTERPRET_CAST(const nsFactoryTableEntry *, hdr); if(entry) { nsFactoryEntry *fe = entry->mFactoryEntry; wrapper->SetData(&fe->cid); *retval = wrapper; NS_ADDREF(*retval); return NS_OK; } else *retval = nsnull; return rv; } static NS_IMETHODIMP ConvertContractIDKeyToString(PLDHashTable *table, const PLDHashEntryHdr *hdr, void *data, nsISupports **retval) { nsresult rv; nsCOMPtr wrapper = do_CreateInstance(NS_SUPPORTS_STRING_CONTRACTID, &rv); NS_ENSURE_SUCCESS(rv, rv); const nsContractIDTableEntry *entry = NS_REINTERPRET_CAST(const nsContractIDTableEntry *, hdr); const char *contractID = entry->mContractID; nsCAutoString converted; converted.Append(contractID); wrapper->SetData(converted.get()); *retval = wrapper; NS_ADDREF(*retval); return NS_OK; } //////////////////////////////////////////////////////////////////////////////// // nsComponentManagerImpl //////////////////////////////////////////////////////////////////////////////// nsComponentManagerImpl::nsComponentManagerImpl() : mMon(NULL), mRegistry(NULL), mPrePopulationDone(PR_FALSE), mNativeComponentLoader(0), mStaticComponentLoader(0), mShuttingDown(NS_SHUTDOWN_NEVERHAPPENED), mLoaderData(nsnull) { NS_INIT_REFCNT(); mFactories.ops = nsnull; mContractIDs.ops = nsnull; } nsresult nsComponentManagerImpl::Init(void) { PR_ASSERT(mShuttingDown != NS_SHUTDOWN_INPROGRESS); if (mShuttingDown == NS_SHUTDOWN_INPROGRESS) return NS_ERROR_FAILURE; mShuttingDown = NS_SHUTDOWN_NEVERHAPPENED; if (nsComponentManagerLog == NULL) { nsComponentManagerLog = PR_NewLogModule("nsComponentManager"); PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("xpcom-log-version : " NS_XPCOM_COMPONENT_MANAGER_VERSION_STRING)); } if (!mFactories.ops) { if (!PL_DHashTableInit(&mFactories, &factory_DHashTableOps, 0, sizeof(nsFactoryTableEntry), 1024)) { mFactories.ops = nsnull; return NS_ERROR_OUT_OF_MEMORY; } // Minimum alpha uses k=3 because nsFactoryTableEntry saves three // words compared to what a chained hash table requires. PL_DHashTableSetAlphaBounds(&mFactories, 0.875, PL_DHASH_MIN_ALPHA(&mFactories, 3)); } if (!mContractIDs.ops) { if (!PL_DHashTableInit(&mContractIDs, &contractID_DHashTableOps, 0, sizeof(nsContractIDTableEntry), 1024)) { mContractIDs.ops = nsnull; return NS_ERROR_OUT_OF_MEMORY; } // Minimum alpha uses k=2 because nsContractIDTableEntry saves two // words compared to what a chained hash table requires. PL_DHashTableSetAlphaBounds(&mContractIDs, 0.875, PL_DHASH_MIN_ALPHA(&mContractIDs, 2)); } if (mMon == NULL) { mMon = PR_NewMonitor(); if (mMon == NULL) return NS_ERROR_OUT_OF_MEMORY; } if (mNativeComponentLoader == nsnull) { /* Create the NativeComponentLoader */ mNativeComponentLoader = new nsNativeComponentLoader(); if (!mNativeComponentLoader) return NS_ERROR_OUT_OF_MEMORY; NS_ADDREF(mNativeComponentLoader); } // Add predefined loaders mLoaderData = (nsLoaderdata *) PR_Malloc(sizeof(nsLoaderdata) * NS_LOADER_DATA_ALLOC_STEP); if (!mLoaderData) return NS_ERROR_OUT_OF_MEMORY; mMaxNLoaderData = NS_LOADER_DATA_ALLOC_STEP; mNLoaderData = NS_COMPONENT_TYPE_NATIVE; mLoaderData[mNLoaderData].type = PL_strdup(nativeComponentType); mLoaderData[mNLoaderData].loader = mNativeComponentLoader; NS_ADDREF(mLoaderData[mNLoaderData].loader); mNLoaderData++; #ifdef ENABLE_STATIC_COMPONENT_LOADER if (mStaticComponentLoader == nsnull) { extern nsresult NS_NewStaticComponentLoader(nsIComponentLoader **); NS_NewStaticComponentLoader(&mStaticComponentLoader); if (!mStaticComponentLoader) return NS_ERROR_OUT_OF_MEMORY; } mLoaderData[mNLoaderData].type = PL_strdup(staticComponentType); mLoaderData[mNLoaderData].loader = mStaticComponentLoader; NS_ADDREF(mLoaderData[mNLoaderData].loader); mNLoaderData++; #endif #ifdef USE_REGISTRY NR_StartupRegistry(); { nsresult ret; ret = PlatformInit(); if( NS_FAILED( ret ) ) { return ret; } } #endif PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Initialized.")); return NS_OK; } nsresult nsComponentManagerImpl::Shutdown(void) { PR_ASSERT(mShuttingDown == NS_SHUTDOWN_NEVERHAPPENED); if (mShuttingDown != NS_SHUTDOWN_NEVERHAPPENED) return NS_ERROR_FAILURE; mShuttingDown = NS_SHUTDOWN_INPROGRESS; // Shutdown the component manager PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Beginning Shutdown.")); // Release all cached factories if (mContractIDs.ops) { PL_DHashTableFinish(&mContractIDs); mContractIDs.ops = nsnull; } if (mFactories.ops) { PL_DHashTableFinish(&mFactories); mFactories.ops = nsnull; } // Unload libraries UnloadLibraries(NULL, NS_Shutdown); #ifdef USE_REGISTRY // Release registry NS_IF_RELEASE(mRegistry); #endif /* USE_REGISTRY */ // This is were the nsFileSpec was deleted, so I am // going to assign zero to mComponentsDir = 0; // Release all the component data - loaders and type strings for(int i=0; i < mNLoaderData; i++) { NS_IF_RELEASE(mLoaderData[i].loader); PL_strfree((char *)mLoaderData[i].type); } PR_Free(mLoaderData); mLoaderData = nsnull; // we have an extra reference on this one, which is probably a good thing NS_IF_RELEASE(mNativeComponentLoader); #ifdef ENABLE_STATIC_COMPONENT_LOADER NS_IF_RELEASE(mStaticComponentLoader); #endif if (mMon) PR_DestroyMonitor(mMon); #ifdef USE_REGISTRY NR_ShutdownRegistry(); #endif /* USE_REGISTRY */ mShuttingDown = NS_SHUTDOWN_COMPLETE; PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Shutdown complete.")); return NS_OK; } nsComponentManagerImpl::~nsComponentManagerImpl() { PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Beginning destruction.")); if (mShuttingDown != NS_SHUTDOWN_COMPLETE) Shutdown(); PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Destroyed.")); } NS_IMPL_THREADSAFE_ISUPPORTS7(nsComponentManagerImpl, nsIComponentManager, nsIServiceManager, nsISupportsWeakReference, nsIInterfaceRequestor, nsIComponentRegistrar, nsIServiceManagerObsolete, nsIComponentManagerObsolete) nsresult nsComponentManagerImpl::GetInterface(const nsIID & uuid, void **result) { if (uuid.Equals(NS_GET_IID(nsIServiceManager))) { *result = NS_STATIC_CAST(nsIServiceManager*, this); NS_ADDREF_THIS(); return NS_OK; } // fall through to QI as anything QIable is a superset of what canbe // got via the GetInterface() return QueryInterface(uuid, result); } //////////////////////////////////////////////////////////////////////////////// // nsComponentManagerImpl: Platform methods //////////////////////////////////////////////////////////////////////////////// #ifdef USE_REGISTRY nsresult nsComponentManagerImpl::PlatformInit(void) { nsresult rv = NS_ERROR_FAILURE; // We need to create our registry. Since we are in the constructor // we haven't gone as far as registering the registry factory. // Hence, we hand create a registry. if (mRegistry == NULL) { nsIFactory *registryFactory = NULL; rv = NS_RegistryGetFactory(®istryFactory); if (NS_SUCCEEDED(rv)) { rv = registryFactory->CreateInstance(NULL, NS_GET_IID(nsIRegistry),(void **)&mRegistry); if (NS_FAILED(rv)) return rv; NS_RELEASE(registryFactory); } } // Open the App Components registry. We will keep it open forever! rv = mRegistry->OpenWellKnownRegistry(nsIRegistry::ApplicationComponentRegistry); if (NS_FAILED(rv)) return rv; // Set larger-than-standard buffer size to speed startup. // This will be re-set at the end of PrePopulateRegistry() ((nsRegistry *)mRegistry)->SetBufferSize( BIG_REGISTRY_BUFLEN ); // Check the version of registry. Nuke old versions. nsRegistryKey xpcomRoot; rv = PlatformVersionCheck(&xpcomRoot); if (NS_FAILED(rv)) return rv; // Open common registry keys here to speed access // Do this after PlatformVersionCheck as it may re-create our keys rv = mRegistry->AddSubtree(xpcomRoot, componentsKeyName, &mXPCOMKey); if (NS_FAILED(rv)) return rv; rv = mRegistry->AddSubtree(xpcomRoot, classesKeyName, &mClassesKey); if (NS_FAILED(rv)) return rv; rv = mRegistry->AddSubtree(xpcomRoot, classIDKeyName, &mCLSIDKey); if (NS_FAILED(rv)) return rv; nsCOMPtr directoryService; rv = nsDirectoryService::Create(nsnull, NS_GET_IID(nsIProperties), getter_AddRefs(directoryService)); directoryService->Get(NS_XPCOM_COMPONENT_DIR, NS_GET_IID(nsIFile), getter_AddRefs(mComponentsDir)); if (!mComponentsDir) return NS_ERROR_OUT_OF_MEMORY; char* componentDescriptor; mComponentsDir->GetPath(&componentDescriptor); if (!componentDescriptor) return NS_ERROR_NULL_POINTER; mComponentsOffset = strlen(componentDescriptor); nsMemory::Free(componentDescriptor); if (mNativeComponentLoader) { /* now that we have the registry, Init the native loader */ rv = mNativeComponentLoader->Init(this, mRegistry); } else { PR_LOG(nsComponentManagerLog, PR_LOG_ERROR, ("no native component loader available for init")); } #ifdef ENABLE_STATIC_COMPONENT_LOADER if (mStaticComponentLoader) { /* now that we have the registry, Init the static loader */ rv = mStaticComponentLoader->Init(this, mRegistry); } #endif return rv; } /** * PlatformVersionCheck() * * Checks to see if the XPCOM hierarchy in the registry is the same as that of * the software as defined by NS_XPCOM_COMPONENT_MANAGER_VERSION_STRING */ nsresult nsComponentManagerImpl::PlatformVersionCheck(nsRegistryKey *aXPCOMRootKey) { nsRegistryKey xpcomKey; nsresult rv; rv = mRegistry->AddSubtree(nsIRegistry::Common, xpcomKeyName, &xpcomKey); if (NS_FAILED(rv)) return rv; nsXPIDLCString buf; nsresult err = mRegistry->GetStringUTF8(xpcomKey, versionValueName, getter_Copies(buf)); // If there is a version mismatch or no version string, we got an old registry. // Delete the old repository hierarchies and recreate version string if (NS_FAILED(err) || PL_strcmp(buf, NS_XPCOM_COMPONENT_MANAGER_VERSION_STRING)) { PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Registry version mismatch (old:%s vs new:%s)." "Nuking xpcom registry hierarchy.", (const char *)buf, NS_XPCOM_COMPONENT_MANAGER_VERSION_STRING)); // Delete the XPCOM hierarchy rv = mRegistry->RemoveSubtree(nsIRegistry::Common, xpcomKeyName); if(NS_FAILED(rv)) { PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Failed To Nuke Subtree (%s)",xpcomKeyName)); return rv; } // The top-level Classes and CLSID trees are from an early alpha version, // we can probably remove these two deletions after the second beta or so. (void) mRegistry->RemoveSubtree(nsIRegistry::Common, classIDKeyName); (void) mRegistry->RemoveSubtree(nsIRegistry::Common, classesKeyName); // Recreate XPCOM key and version rv = mRegistry->AddSubtree(nsIRegistry::Common,xpcomKeyName, &xpcomKey); if(NS_FAILED(rv)) { PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Failed To Add Subtree (%s)",xpcomKeyName)); return rv; } rv = mRegistry->SetStringUTF8(xpcomKey,versionValueName, NS_XPCOM_COMPONENT_MANAGER_VERSION_STRING); if(NS_FAILED(rv)) { PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Failed To Set String (Version) Under (%s)",xpcomKeyName)); return rv; } } else { PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: platformVersionCheck() passed.")); } // return the XPCOM key (null check deferred so cleanup always happens) if (!aXPCOMRootKey) return NS_ERROR_NULL_POINTER; else *aXPCOMRootKey = xpcomKey; return NS_OK; } nsresult nsComponentManagerImpl::PlatformUnregister(const char *cidString, const char *aLibrary) { nsresult rv; PRUint32 length = strlen(aLibrary); char* eLibrary; rv = mRegistry->EscapeKey((PRUint8*)aLibrary, 1, &length, (PRUint8**)&eLibrary); if (rv != NS_OK) { return rv; } if (eLibrary == nsnull) // No escaping required eLibrary = (char*)aLibrary; PR_ASSERT(mRegistry!=NULL); nsRegistryKey cidKey; rv = mRegistry->AddSubtreeRaw(mCLSIDKey, cidString, &cidKey); char *contractID = NULL; rv = mRegistry->GetStringUTF8(cidKey, contractIDValueName, &contractID); if(NS_SUCCEEDED(rv)) { mRegistry->RemoveSubtreeRaw(mClassesKey, contractID); PR_FREEIF(contractID); } mRegistry->RemoveSubtree(mCLSIDKey, cidString); nsRegistryKey libKey; rv = mRegistry->GetSubtreeRaw(mXPCOMKey, eLibrary, &libKey); if(NS_FAILED(rv)) return rv; // We need to reduce the ComponentCount by 1. // If the ComponentCount hits 0, delete the entire key. PRInt32 nComponents = 0; rv = mRegistry->GetInt(libKey, componentCountValueName, &nComponents); if(NS_FAILED(rv)) return rv; nComponents--; if (nComponents <= 0) { rv = mRegistry->RemoveSubtreeRaw(mXPCOMKey, eLibrary); } else { rv = mRegistry->SetInt(libKey, componentCountValueName, nComponents); } if (eLibrary != aLibrary) nsMemory::Free(eLibrary); return rv; } nsresult nsComponentManagerImpl::PlatformFind(const nsCID &aCID, nsFactoryEntry* *result) { PR_ASSERT(mRegistry!=NULL); nsresult rv; char *cidString = aCID.ToString(); nsRegistryKey cidKey; rv = mRegistry->GetSubtreeRaw(mCLSIDKey, cidString, &cidKey); delete [] cidString; if (NS_FAILED(rv)) return rv; nsXPIDLCString library; PRUint32 tmp; rv = mRegistry->GetBytesUTF8(cidKey, inprocServerValueName, &tmp, (PRUint8**)getter_Copies(library).operator char**()); if (NS_FAILED(rv)) { // Registry inconsistent. No File name for CLSID. return rv; } nsXPIDLCString componentTypeStr; rv = mRegistry->GetStringUTF8(cidKey, componentTypeValueName, getter_Copies(componentTypeStr)); const char* componentType = componentTypeStr.get(); int type = NS_COMPONENT_TYPE_FACTORY_ONLY; if (NS_FAILED(rv)) { if (rv == NS_ERROR_REG_NOT_FOUND) { /* missing componentType, we assume application/x-moz-native */ type = NS_COMPONENT_TYPE_NATIVE; } else return rv; // XXX translate error code? } if (type < 0) { // Find the right loader type index type = GetLoaderType(componentType); } nsFactoryEntry *res = new nsFactoryEntry(aCID, library, type); if (res == NULL) return NS_ERROR_OUT_OF_MEMORY; *result = res; return NS_OK; } nsresult nsComponentManagerImpl::PlatformContractIDToCLSID(const char *aContractID, nsCID *aClass) { PR_ASSERT(aClass != NULL); PR_ASSERT(mRegistry); nsresult rv; nsRegistryKey contractIDKey; rv = mRegistry->GetSubtreeRaw(mClassesKey, aContractID, &contractIDKey); if (NS_FAILED(rv)) return NS_ERROR_FACTORY_NOT_REGISTERED; char *cidString; rv = mRegistry->GetStringUTF8(contractIDKey, classIDValueName, &cidString); if(NS_FAILED(rv)) return rv; if (!(aClass->Parse(cidString))) { rv = NS_ERROR_FAILURE; } PR_FREEIF(cidString); return rv; } nsresult nsComponentManagerImpl::PlatformCLSIDToContractID(const nsCID *aClass, char* *aClassName, char* *aContractID) { PR_ASSERT(aClass); PR_ASSERT(mRegistry); nsresult rv; char* cidStr = aClass->ToString(); nsRegistryKey cidKey; rv = mRegistry->GetSubtreeRaw(mCLSIDKey, cidStr, &cidKey); if(NS_FAILED(rv)) return rv; PR_FREEIF(cidStr); if (aClassName) { char* classnameString; rv = mRegistry->GetStringUTF8(cidKey, classNameValueName, &classnameString); if(NS_FAILED(rv)) return rv; *aClassName = classnameString; } if (aContractID) { char* contractidString; rv = mRegistry->GetStringUTF8(cidKey,contractIDValueName,&contractidString); if (NS_FAILED(rv)) return rv; *aContractID = contractidString; } return NS_OK; } nsresult nsComponentManagerImpl::PlatformPrePopulateRegistry() { nsresult rv; char buf[MAXREGPATHLEN]; PRUint32 bufLength = sizeof(buf); if (mPrePopulationDone) return NS_OK; (void)((nsRegistry *)mRegistry)->SetBufferSize( BIG_REGISTRY_BUFLEN ); nsCOMPtr regGetter = do_QueryInterface(mRegistry); if (!regGetter.get()) return NS_ERROR_FAILURE; // Read in all CID entries and populate the mFactories nsCOMPtr cidEnum; rv = mRegistry->EnumerateSubtrees( mCLSIDKey, getter_AddRefs(cidEnum)); if (NS_FAILED(rv)) return rv; nsCOMPtr regEnum(do_QueryInterface(cidEnum, &rv)); if (NS_FAILED(rv)) return rv; for (rv = regEnum->First(); NS_SUCCEEDED(rv) && (regEnum->IsDone() != NS_OK); rv = regEnum->Next()) { const char *cidString; nsRegistryKey cidKey; /* * CurrentItemInPlaceUTF8 will give us back a _shared_ pointer in * cidString. This is bad XPCOM practice. It is evil, and requires * great care with the relative lifetimes of cidString and regEnum. * * It is also faster, and less painful in the allocation department. */ rv = regEnum->CurrentItemInPlaceUTF8(&cidKey, &cidString); if (NS_FAILED(rv)) continue; // Figure out the component type // Use the non allocating registry getter. Our buffer is big enough // We wont get NS_ERROR_REG_BUFFER_TOO_SMALL bufLength = sizeof(buf); rv = regGetter->GetStringUTF8IntoBuffer(cidKey, componentTypeValueName, buf, &bufLength); if (NS_FAILED(rv)) continue; int loadertype = GetLoaderType(buf); if (loadertype < 0) { loadertype = AddLoaderType(buf); } // Create the CID entry bufLength = sizeof(buf); rv = regGetter->GetBytesUTF8IntoBuffer(cidKey, inprocServerValueName, (PRUint8 *) buf, &bufLength); if (NS_FAILED(rv)) continue; nsCID aClass; if (!(aClass.Parse(cidString))) continue; nsFactoryEntry *entry = new nsFactoryEntry(aClass, buf, loadertype); if (!entry) return NS_ERROR_OUT_OF_MEMORY; nsAutoMonitor mon(mMon); nsFactoryTableEntry* factoryTableEntry = NS_STATIC_CAST(nsFactoryTableEntry*, PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_ADD)); if (!factoryTableEntry) return NS_ERROR_OUT_OF_MEMORY; factoryTableEntry->mFactoryEntry = entry; } // Finally read in CONTRACTID -> CID mappings nsCOMPtr contractidEnum; rv = mRegistry->EnumerateSubtrees( mClassesKey, getter_AddRefs(contractidEnum)); if (NS_FAILED(rv)) return rv; regEnum = do_QueryInterface(contractidEnum, &rv); if (NS_FAILED(rv)) return rv; for (rv = regEnum->First(); NS_SUCCEEDED(rv) && (regEnum->IsDone() != NS_OK); rv = regEnum->Next()) { const char *contractidString; nsRegistryKey contractidKey; /* * CurrentItemInPlaceUTF8 will give us back a _shared_ pointer in * contractidString. This is bad XPCOM practice. It is evil, and requires * great care with the relative lifetimes of contractidString and regEnum. * * It is also faster, and less painful in the allocation department. */ rv = regEnum->CurrentItemInPlaceUTF8(&contractidKey, &contractidString); if (NS_FAILED(rv)) continue; // Use the non allocating registry getter. Our buffer is big enough // We wont get NS_ERROR_REG_BUFFER_TOO_SMALL bufLength = sizeof(buf); rv = regGetter->GetStringUTF8IntoBuffer(contractidKey, classIDValueName, buf, &bufLength); if (NS_FAILED(rv)) continue; nsCID aClass; if (!aClass.Parse(buf)) continue; // put the {contractid, Cid} mapping into our map HashContractID(contractidString, aClass); } // Create the category manage to ensure prepopulation of categories nsCOMPtr catman = do_GetService(NS_CATEGORYMANAGER_CONTRACTID); // reset registry buffer to standard size (void)((nsRegistry *)mRegistry)->SetBufferSize( -1 ); mPrePopulationDone = PR_TRUE; return NS_OK; } #endif /* USE_REGISTRY */ //////////////////////////////////////////////////////////////////////////////// // Hash Functions //////////////////////////////////////////////////////////////////////////////// nsresult nsComponentManagerImpl::HashContractID(const char *aContractID, const nsCID &aClass, nsFactoryEntry **pfe) { nsIDKey cidKey(aClass); return HashContractID(aContractID, aClass, cidKey, pfe); } nsresult nsComponentManagerImpl::HashContractID(const char *aContractID, const nsCID &aClass, nsIDKey &cidKey, nsFactoryEntry **pfe) { if(!aContractID) { return NS_ERROR_NULL_POINTER; } // Find the factory entry corresponding to the CID. nsFactoryEntry *entry = GetFactoryEntry(aClass, cidKey); if (!entry) { // Non existent. We use the special kNonExistentContractID to mark // that this contractid does not have a mapping. entry = kNonExistentContractID; } nsresult rv = HashContractID(aContractID, entry); if (NS_FAILED(rv)) return rv; // Fill the entry out parameter if (pfe) *pfe = entry; return NS_OK; } nsresult nsComponentManagerImpl::HashContractID(const char *aContractID, nsFactoryEntry *fe) { if(!aContractID) return NS_ERROR_NULL_POINTER; nsAutoMonitor mon(mMon); nsContractIDTableEntry* contractIDTableEntry = NS_STATIC_CAST(nsContractIDTableEntry*, PL_DHashTableOperate(&mContractIDs, aContractID, PL_DHASH_ADD)); if (!contractIDTableEntry) return NS_ERROR_OUT_OF_MEMORY; if (!contractIDTableEntry->mContractID) contractIDTableEntry->mContractID = nsCRT::strdup(aContractID); contractIDTableEntry->mFactoryEntry = fe; return NS_OK; } /** * LoadFactory() * * Given a FactoryEntry, this loads the dll if it has to, find the NSGetFactory * symbol, calls the routine to create a new factory and returns it to the * caller. * * No attempt is made to store the factory in any form anywhere. */ nsresult nsComponentManagerImpl::LoadFactory(nsFactoryEntry *aEntry, nsIFactory **aFactory) { if (!aFactory) return NS_ERROR_NULL_POINTER; *aFactory = NULL; nsresult rv; rv = aEntry->GetFactory(aFactory, this); if (NS_FAILED(rv)) { PR_LOG(nsComponentManagerLog, PR_LOG_ERROR, ("nsComponentManager: FAILED to load factory from %s (%s)\n", (const char *)aEntry->location, mLoaderData[aEntry->typeIndex].type)); return rv; } return NS_OK; } nsFactoryEntry * nsComponentManagerImpl::GetFactoryEntry(const char *aContractID, int checkRegistry) { nsFactoryEntry *fe = nsnull; { nsAutoMonitor mon(mMon); nsContractIDTableEntry* contractIDTableEntry = NS_STATIC_CAST(nsContractIDTableEntry*, PL_DHashTableOperate(&mContractIDs, aContractID, PL_DHASH_LOOKUP)); if (PL_DHASH_ENTRY_IS_BUSY(contractIDTableEntry)) { fe = contractIDTableEntry->mFactoryEntry; } } //exit monitor #ifdef USE_REGISTRY if (!fe) { if (checkRegistry < 0) { // default checkRegistry = !mPrePopulationDone; } if (checkRegistry) { nsCID cid; nsresult rv = PlatformContractIDToCLSID(aContractID, &cid); if (NS_SUCCEEDED(rv)) { HashContractID(aContractID, cid, &fe); } } } #endif /* USE_REGISTRY */ // If no mapping found, add a special non-existent mapping // so the next time around, we dont have to waste time doing the // same mapping over and over again if (!fe) { fe = kNonExistentContractID; HashContractID(aContractID, fe); } return (fe); } nsFactoryEntry * nsComponentManagerImpl::GetFactoryEntry(const nsCID &aClass, int checkRegistry) { nsIDKey cidKey(aClass); return GetFactoryEntry(aClass, cidKey, checkRegistry); } nsFactoryEntry * nsComponentManagerImpl::GetFactoryEntry(const nsCID &aClass, nsIDKey &cidKey, int checkRegistry) { nsFactoryEntry *entry = nsnull; { nsAutoMonitor mon(mMon); nsFactoryTableEntry* factoryTableEntry = NS_STATIC_CAST(nsFactoryTableEntry*, PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_LOOKUP)); if (PL_DHASH_ENTRY_IS_BUSY(factoryTableEntry)) { entry = factoryTableEntry->mFactoryEntry; } } // exit monitor #ifdef USE_REGISTRY if (!entry) { if (checkRegistry < 0) { // default checkRegistry = !mPrePopulationDone; } if (checkRegistry) { nsresult rv = PlatformFind(aClass, &entry); // If we got one, cache it in our hashtable if (NS_SUCCEEDED(rv)) { nsAutoMonitor mon(mMon); nsFactoryTableEntry* factoryTableEntry = NS_STATIC_CAST(nsFactoryTableEntry*, PL_DHashTableOperate(&mFactories, &cidKey, PL_DHASH_ADD)); if (!factoryTableEntry) { return nsnull; } factoryTableEntry->mFactoryEntry = entry; } } } #endif /* USE_REGISTRY */ return (entry); } /** * FindFactory() * * Given a classID, this finds the factory for this CID by first searching the * local CID<->factory mapping. Next it searches for a Dll that implements * this classID and calls LoadFactory() to create the factory. * * Again, no attempt is made at storing the factory. */ nsresult nsComponentManagerImpl::FindFactory(const nsCID &aClass, nsIFactory **aFactory) { PR_ASSERT(aFactory != NULL); nsFactoryEntry *entry = GetFactoryEntry(aClass); if (!entry) return NS_ERROR_FACTORY_NOT_REGISTERED; return entry->GetFactory(aFactory, this); } nsresult nsComponentManagerImpl::FindFactory(const char *contractID, nsIFactory **aFactory) { PR_ASSERT(aFactory != NULL); nsFactoryEntry *entry = GetFactoryEntry(contractID); if (!entry || entry == kNonExistentContractID) return NS_ERROR_FACTORY_NOT_REGISTERED; return entry->GetFactory(aFactory, this); } /** * GetClassObject() * * Given a classID, this finds the singleton ClassObject that implements the CID. * Returns an interface of type aIID off the singleton classobject. */ nsresult nsComponentManagerImpl::GetClassObject(const nsCID &aClass, const nsIID &aIID, void **aResult) { nsresult rv; nsCOMPtr factory; if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_ALWAYS)) { char *buf = aClass.ToString(); PR_LogPrint("nsComponentManager: GetClassObject(%s)", buf); delete [] buf; } PR_ASSERT(aResult != NULL); rv = FindFactory(aClass, getter_AddRefs(factory)); if (NS_FAILED(rv)) return rv; rv = factory->QueryInterface(aIID, aResult); PR_LOG(nsComponentManagerLog, PR_LOG_WARNING, ("\t\tGetClassObject() %s", NS_SUCCEEDED(rv) ? "succeeded" : "FAILED")); return rv; } nsresult nsComponentManagerImpl::GetClassObjectByContractID(const char *contractID, const nsIID &aIID, void **aResult) { nsresult rv; nsCOMPtr factory; if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_ALWAYS)) { PR_LogPrint("nsComponentManager: GetClassObject(%s)", contractID); } PR_ASSERT(aResult != NULL); rv = FindFactory(contractID, getter_AddRefs(factory)); if (NS_FAILED(rv)) return rv; rv = factory->QueryInterface(aIID, aResult); PR_LOG(nsComponentManagerLog, PR_LOG_WARNING, ("\t\tGetClassObject() %s", NS_SUCCEEDED(rv) ? "succeeded" : "FAILED")); return rv; } /** * ContractIDToClassID() * * Mapping function from a ContractID to a classID. Directly talks to the registry. * */ nsresult nsComponentManagerImpl::ContractIDToClassID(const char *aContractID, nsCID *aClass) { NS_PRECONDITION(aContractID != NULL, "null ptr"); if (! aContractID) return NS_ERROR_NULL_POINTER; NS_PRECONDITION(aClass != NULL, "null ptr"); if (! aClass) return NS_ERROR_NULL_POINTER; nsresult res = NS_ERROR_FACTORY_NOT_REGISTERED; nsFactoryEntry *fe = GetFactoryEntry(aContractID); if (fe && fe != kNonExistentContractID) { *aClass = fe->cid; res = NS_OK; } if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_ALWAYS)) { char *buf = 0; if (NS_SUCCEEDED(res)) buf = aClass->ToString(); PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: ContractIDToClassID(%s)->%s", aContractID, NS_SUCCEEDED(res) ? buf : "[FAILED]")); if (NS_SUCCEEDED(res)) delete [] buf; } return res; } /** * CLSIDToContractID() * * Translates a classID to a {ContractID, Class Name}. Does direct registry * access to do the translation. * * NOTE: Since this isn't heavily used, we arent caching this. */ nsresult nsComponentManagerImpl::CLSIDToContractID(const nsCID &aClass, char* *aClassName, char* *aContractID) { nsresult res = NS_ERROR_FACTORY_NOT_REGISTERED; #ifdef USE_REGISTRY res = PlatformCLSIDToContractID(&aClass, aClassName, aContractID); #endif /* USE_REGISTRY */ if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_ALWAYS)) { char *buf = aClass.ToString(); PR_LOG(nsComponentManagerLog, PR_LOG_WARNING, ("nsComponentManager: CLSIDToContractID(%s)->%s", buf, NS_SUCCEEDED(res) ? *aContractID : "[FAILED]")); delete [] buf; } return res; } /** * CreateInstance() * * Create an instance of an object that implements an interface and belongs * to the implementation aClass using the factory. The factory is immediately * released and not held onto for any longer. */ nsresult nsComponentManagerImpl::CreateInstance(const nsCID &aClass, nsISupports *aDelegate, const nsIID &aIID, void **aResult) { // test this first, since there's no point in creating a component during // shutdown -- whether it's available or not would depend on the order it // occurs in the list if (gXPCOMShuttingDown) { // When processing shutdown, dont process new GetService() requests #ifdef SHOW_DENIED_ON_SHUTDOWN nsXPIDLCString cid, iid; cid.Adopt(aClass.ToString()); iid.Adopt(aIID.ToString()); printf("Creating new instance on shutdown. Denied.\n" " CID: %s\n IID: %s\n", cid.get(), iid.get()); #endif /* SHOW_DENIED_ON_SHUTDOWN */ return NS_ERROR_UNEXPECTED; } if (aResult == NULL) { return NS_ERROR_NULL_POINTER; } *aResult = NULL; nsIFactory *factory = NULL; nsresult res = FindFactory(aClass, &factory); if (NS_SUCCEEDED(res)) { res = factory->CreateInstance(aDelegate, aIID, aResult); NS_RELEASE(factory); } else { // Translate error values res = NS_ERROR_FACTORY_NOT_REGISTERED; } if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_ALWAYS)) { char *buf = aClass.ToString(); PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: CreateInstance(%s) %s", buf, NS_SUCCEEDED(res) ? "succeeded" : "FAILED")); delete [] buf; } return res; } /** * CreateInstanceByContractID() * * A variant of CreateInstance() that creates an instance of the object that * implements the interface aIID and whose implementation has a contractID aContractID. * * This is only a convenience routine that turns around can calls the * CreateInstance() with classid and iid. */ nsresult nsComponentManagerImpl::CreateInstanceByContractID(const char *aContractID, nsISupports *aDelegate, const nsIID &aIID, void **aResult) { // test this first, since there's no point in creating a component during // shutdown -- whether it's available or not would depend on the order it // occurs in the list if (gXPCOMShuttingDown) { // When processing shutdown, dont process new GetService() requests #ifdef SHOW_DENIED_ON_SHUTDOWN nsXPIDLCString iid; iid.Adopt(aIID.ToString()); printf("Creating new instance on shutdown. Denied.\n" " ContractID: %s\n IID: %s\n", aContractID, iid.get()); #endif /* SHOW_DENIED_ON_SHUTDOWN */ return NS_ERROR_UNEXPECTED; } if (aResult == NULL) { return NS_ERROR_NULL_POINTER; } *aResult = NULL; nsIFactory *factory = NULL; nsresult res = FindFactory(aContractID, &factory); if (NS_SUCCEEDED(res)) { res = factory->CreateInstance(aDelegate, aIID, aResult); NS_RELEASE(factory); } else { // Translate error values res = NS_ERROR_FACTORY_NOT_REGISTERED; } PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: CreateInstanceByContractID(%s) %s", aContractID, NS_SUCCEEDED(res) ? "succeeded" : "FAILED")); return res; } // Service Manager Impl static PLDHashOperator PR_CALLBACK FreeServiceFactoryEntryEnumerate(PLDHashTable *aTable, PLDHashEntryHdr *aHdr, PRUint32 aNumber, void *aData) { nsFactoryTableEntry* entry = NS_STATIC_CAST(nsFactoryTableEntry*, aHdr); if (!entry->mFactoryEntry || entry->mFactoryEntry == kNonExistentContractID) return PL_DHASH_NEXT; nsFactoryEntry* factoryEntry = entry->mFactoryEntry; factoryEntry->mServiceObject = nsnull; return PL_DHASH_NEXT; } static PLDHashOperator PR_CALLBACK FreeServiceContractIDEntryEnumerate(PLDHashTable *aTable, PLDHashEntryHdr *aHdr, PRUint32 aNumber, void *aData) { nsContractIDTableEntry* entry = NS_STATIC_CAST(nsContractIDTableEntry*, aHdr); if (!entry->mFactoryEntry || entry->mFactoryEntry == kNonExistentContractID) return PL_DHASH_NEXT; nsFactoryEntry* factoryEntry = entry->mFactoryEntry; factoryEntry->mServiceObject = nsnull; return PL_DHASH_NEXT; } nsresult nsComponentManagerImpl::FreeServices() { NS_ASSERTION(gXPCOMShuttingDown, "Must be shutting down in order to free all services"); if (!gXPCOMShuttingDown) return NS_ERROR_FAILURE; if (mContractIDs.ops) { PL_DHashTableEnumerate(&mContractIDs, FreeServiceContractIDEntryEnumerate, nsnull); } if (mFactories.ops) { PL_DHashTableEnumerate(&mFactories, FreeServiceFactoryEntryEnumerate, nsnull); } return NS_OK; } NS_IMETHODIMP nsComponentManagerImpl::GetService(const nsCID& aClass, const nsIID& aIID, void* *result) { nsAutoMonitor mon(mMon); // test this first, since there's no point in returning a service during // shutdown -- whether it's available or not would depend on the order it // occurs in the list if (gXPCOMShuttingDown) { // When processing shutdown, dont process new GetService() requests #ifdef SHOW_DENIED_ON_SHUTDOWN nsXPIDLCString cid, iid; cid.Adopt(aClass.ToString()); iid.Adopt(aIID.ToString()); printf("Getting service on shutdown. Denied.\n" " CID: %s\n IID: %s\n", cid.get(), iid.get()); #endif /* SHOW_DENIED_ON_SHUTDOWN */ return NS_ERROR_UNEXPECTED; } nsresult rv = NS_OK; nsIDKey key(aClass); nsFactoryEntry* entry = nsnull; nsFactoryTableEntry* factoryTableEntry = NS_STATIC_CAST(nsFactoryTableEntry*, PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_LOOKUP)); if (PL_DHASH_ENTRY_IS_BUSY(factoryTableEntry)) { entry = factoryTableEntry->mFactoryEntry; } if (entry && entry->mServiceObject) { return entry->mServiceObject->QueryInterface(aIID, result); } nsCOMPtr service; // We need to not be holding the service manager's monitor while calling // CreateInstance, because it invokes user code which could try to re-enter // the service manager: mon.Exit(); rv = CreateInstance(aClass, NULL, aIID, getter_AddRefs(service)); mon.Enter(); if (NS_FAILED(rv)) return rv; if (!entry) { // second hash lookup for GetService nsFactoryTableEntry* factoryTableEntry = NS_STATIC_CAST(nsFactoryTableEntry*, PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_LOOKUP)); if (PL_DHASH_ENTRY_IS_BUSY(factoryTableEntry)) { entry = factoryTableEntry->mFactoryEntry; } NS_ASSERTION(entry, "we should have a factory entry since CI succeeded - we should not get here"); if (!entry) return NS_ERROR_FAILURE; } entry->mServiceObject = service; *result = service.get(); NS_ADDREF(NS_STATIC_CAST(nsISupports*, (*result))); return rv; } NS_IMETHODIMP nsComponentManagerImpl::RegisterService(const nsCID& aClass, nsISupports* aService) { nsAutoMonitor mon(mMon); // check to see if we have a factory entry for the service nsIDKey key(aClass); nsFactoryEntry *entry = GetFactoryEntry(aClass, key, 0); if (!entry) { // XXXdougt - should we require that all services register factories?? probably not. entry = new nsFactoryEntry(aClass, nsnull); if (entry == nsnull) return NS_ERROR_OUT_OF_MEMORY; entry->typeIndex = NS_COMPONENT_TYPE_SERVICE_ONLY; nsFactoryTableEntry* factoryTableEntry = NS_STATIC_CAST(nsFactoryTableEntry*, PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_ADD)); if (!factoryTableEntry) return NS_ERROR_OUT_OF_MEMORY; factoryTableEntry->mFactoryEntry = entry; } else { if (entry->mServiceObject) return NS_ERROR_FAILURE; } entry->mServiceObject = aService; return NS_OK; } NS_IMETHODIMP nsComponentManagerImpl::UnregisterService(const nsCID& aClass) { nsresult rv = NS_OK; nsFactoryEntry* entry = nsnull; nsAutoMonitor mon(mMon); nsFactoryTableEntry* factoryTableEntry = NS_STATIC_CAST(nsFactoryTableEntry*, PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_LOOKUP)); if (PL_DHASH_ENTRY_IS_BUSY(factoryTableEntry)) { entry = factoryTableEntry->mFactoryEntry; } if (!entry || !entry->mServiceObject) return NS_ERROR_SERVICE_NOT_FOUND; entry->mServiceObject = nsnull; return rv; } NS_IMETHODIMP nsComponentManagerImpl::RegisterService(const char* aContractID, nsISupports* aService) { nsAutoMonitor mon(mMon); // check to see if we have a factory entry for the service nsFactoryEntry *entry = GetFactoryEntry(aContractID, 0); if (entry == kNonExistentContractID) entry = nsnull; if (!entry) { // XXXdougt - should we require that all services register factories?? probably not. entry = new nsFactoryEntry(kEmptyCID, nsnull); if (entry == nsnull) return NS_ERROR_OUT_OF_MEMORY; entry->typeIndex = NS_COMPONENT_TYPE_SERVICE_ONLY; nsContractIDTableEntry* contractIDTableEntry = NS_STATIC_CAST(nsContractIDTableEntry*, PL_DHashTableOperate(&mContractIDs, aContractID, PL_DHASH_ADD)); if (!contractIDTableEntry) { delete entry; return NS_ERROR_OUT_OF_MEMORY; } if (!contractIDTableEntry->mContractID) contractIDTableEntry->mContractID = nsCRT::strdup(aContractID); contractIDTableEntry->mFactoryEntry = entry; } else { if (entry->mServiceObject) return NS_ERROR_FAILURE; } entry->mServiceObject = aService; return NS_OK; } NS_IMETHODIMP nsComponentManagerImpl::IsServiceInstantiated(const nsCID & aClass, const nsIID& aIID, PRBool *result) { // Now we want to get the service if we already got it. If not, we dont want // to create an instance of it. mmh! // test this first, since there's no point in returning a service during // shutdown -- whether it's available or not would depend on the order it // occurs in the list if (gXPCOMShuttingDown) { // When processing shutdown, dont process new GetService() requests #ifdef SHOW_DENIED_ON_SHUTDOWN nsXPIDLCString cid, iid; cid.Adopt(aClass.ToString()); iid.Adopt(aIID.ToString()); printf("Checking for service on shutdown. Denied.\n" " CID: %s\n IID: %s\n", cid.get(), iid.get()); #endif /* SHOW_DENIED_ON_SHUTDOWN */ return NS_ERROR_UNEXPECTED; } nsresult rv = NS_ERROR_SERVICE_NOT_FOUND; nsFactoryEntry* entry = nsnull; nsFactoryTableEntry* factoryTableEntry = NS_STATIC_CAST(nsFactoryTableEntry*, PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_LOOKUP)); if (PL_DHASH_ENTRY_IS_BUSY(factoryTableEntry)) { entry = factoryTableEntry->mFactoryEntry; } if (entry && entry->mServiceObject) { nsCOMPtr service; rv = entry->mServiceObject->QueryInterface(aIID, getter_AddRefs(service)); *result =(service!=nsnull); } return rv; } NS_IMETHODIMP nsComponentManagerImpl::IsServiceInstantiatedByContractID(const char *aContractID, const nsIID& aIID, PRBool *result) { // Now we want to get the service if we already got it. If not, we dont want // to create an instance of it. mmh! // test this first, since there's no point in returning a service during // shutdown -- whether it's available or not would depend on the order it // occurs in the list if (gXPCOMShuttingDown) { // When processing shutdown, dont process new GetService() requests #ifdef SHOW_DENIED_ON_SHUTDOWN nsXPIDLCString iid; iid.Adopt(aIID.ToString()); printf("Checking for service on shutdown. Denied.\n" " ContractID: %s\n IID: %s\n", aContractID, iid.get()); #endif /* SHOW_DENIED_ON_SHUTDOWN */ return NS_ERROR_UNEXPECTED; } nsresult rv = NS_ERROR_SERVICE_NOT_FOUND; nsFactoryEntry *entry = nsnull; { nsAutoMonitor mon(mMon); nsContractIDTableEntry* contractIDTableEntry = NS_STATIC_CAST(nsContractIDTableEntry*, PL_DHashTableOperate(&mContractIDs, aContractID, PL_DHASH_LOOKUP)); if (PL_DHASH_ENTRY_IS_BUSY(contractIDTableEntry)) { entry = contractIDTableEntry->mFactoryEntry; } } // exit monitor if (entry && entry != kNonExistentContractID && entry->mServiceObject) { nsCOMPtr service; rv = entry->mServiceObject->QueryInterface(aIID, getter_AddRefs(service)); *result =(service!=nsnull); } return rv; } NS_IMETHODIMP nsComponentManagerImpl::UnregisterService(const char* aContractID) { nsresult rv = NS_OK; nsAutoMonitor mon(mMon); nsFactoryEntry *entry = nsnull; nsContractIDTableEntry* contractIDTableEntry = NS_STATIC_CAST(nsContractIDTableEntry*, PL_DHashTableOperate(&mContractIDs, aContractID, PL_DHASH_LOOKUP)); if (PL_DHASH_ENTRY_IS_BUSY(contractIDTableEntry)) { entry = contractIDTableEntry->mFactoryEntry; } if (entry == nsnull || entry == kNonExistentContractID || entry->mServiceObject == nsnull) return NS_ERROR_SERVICE_NOT_FOUND; entry->mServiceObject = nsnull; return rv; } NS_IMETHODIMP nsComponentManagerImpl::GetServiceByContractID(const char* aContractID, const nsIID& aIID, void* *result) { nsAutoMonitor mon(mMon); // test this first, since there's no point in returning a service during // shutdown -- whether it's available or not would depend on the order it // occurs in the list if (gXPCOMShuttingDown) { // When processing shutdown, dont process new GetService() requests #ifdef SHOW_DENIED_ON_SHUTDOWN nsXPIDLCString iid; iid.Adopt(aIID.ToString()); printf("Getting service on shutdown. Denied.\n" " ContractID: %s\n IID: %s\n", aContractID, iid.get()); #endif /* SHOW_DENIED_ON_SHUTDOWN */ return NS_ERROR_UNEXPECTED; } nsresult rv = NS_OK; nsFactoryEntry *entry = nsnull; nsContractIDTableEntry* contractIDTableEntry = NS_STATIC_CAST(nsContractIDTableEntry*, PL_DHashTableOperate(&mContractIDs, aContractID, PL_DHASH_LOOKUP)); if (PL_DHASH_ENTRY_IS_BUSY(contractIDTableEntry)) { entry = contractIDTableEntry->mFactoryEntry; } if (entry && entry != kNonExistentContractID && entry->mServiceObject) { return entry->mServiceObject->QueryInterface(aIID, result); } nsCOMPtr service; // We need to not be holding the service manager's monitor while calling // CreateInstance, because it invokes user code which could try to re-enter // the service manager: mon.Exit(); rv = CreateInstanceByContractID(aContractID, NULL, aIID, getter_AddRefs(service)); mon.Enter(); if (NS_FAILED(rv)) return rv; if (!entry) { // second hash lookup for GetService nsContractIDTableEntry* contractIDTableEntry = NS_STATIC_CAST(nsContractIDTableEntry*, PL_DHashTableOperate(&mContractIDs, aContractID, PL_DHASH_LOOKUP)); if (PL_DHASH_ENTRY_IS_BUSY(contractIDTableEntry)) { entry = contractIDTableEntry->mFactoryEntry; } NS_ASSERTION(entry, "we should have a factory entry since CI succeeded - we should not get here"); if (!entry) return NS_ERROR_FAILURE; } entry->mServiceObject = service; *result = service.get(); NS_ADDREF(NS_STATIC_CAST(nsISupports*, (*result))); return rv; } NS_IMETHODIMP nsComponentManagerImpl::GetService(const nsCID& aClass, const nsIID& aIID, nsISupports* *result, nsIShutdownListener* shutdownListener) { return GetService(aClass, aIID, (void**)result); }; NS_IMETHODIMP nsComponentManagerImpl::GetService(const char* aContractID, const nsIID& aIID, nsISupports* *result, nsIShutdownListener* shutdownListener ) { return GetServiceByContractID(aContractID, aIID, (void**)result); }; NS_IMETHODIMP nsComponentManagerImpl::ReleaseService(const nsCID& aClass, nsISupports* service, nsIShutdownListener* shutdownListener ) { NS_IF_RELEASE(service); return NS_OK; }; NS_IMETHODIMP nsComponentManagerImpl::ReleaseService(const char* aContractID, nsISupports* service, nsIShutdownListener* shutdownListener ) { NS_IF_RELEASE(service); return NS_OK; }; /* * I want an efficient way to allocate a buffer to the right size * and stick the prefix and dllName in, then be able to hand that buffer * off to the FactoryEntry. Is that so wrong? * * *regName is allocated on success. * * This should live in nsNativeComponentLoader.cpp, I think. */ static nsresult MakeRegistryName(const char *aDllName, const char *prefix, char **regName) { char *registryName; PRUint32 len = nsCRT::strlen(prefix); PRUint32 registryNameLen = nsCRT::strlen(aDllName) + len; registryName = (char *)nsMemory::Alloc(registryNameLen + 1); // from here on it, we want len sans terminating NUL if (!registryName) return NS_ERROR_OUT_OF_MEMORY; memcpy(registryName, prefix, len); strcpy(registryName + len, aDllName); // no nsCRT::strcpy? for shame! registryName[registryNameLen] = '\0'; *regName = registryName; #ifdef DEBUG_shaver_off fprintf(stderr, "MakeRegistryName(%s, %s, &[%s])\n", aDllName, prefix, *regName); #endif return NS_OK; } nsresult nsComponentManagerImpl::RegistryNameForLib(const char *aLibName, char **aRegistryName) { return MakeRegistryName(aLibName, XPCOM_LIB_PREFIX, aRegistryName); } nsresult nsComponentManagerImpl::RegistryLocationForSpec(nsIFile *aSpec, char **aRegistryName) { nsresult rv; if (!mComponentsDir) return NS_ERROR_NOT_INITIALIZED; if (!aSpec) { *aRegistryName = nsCRT::strdup(""); return NS_OK; } PRBool containedIn; mComponentsDir->Contains(aSpec, PR_TRUE, &containedIn); char *persistentDescriptor; if (containedIn){ rv = aSpec->GetPath(&persistentDescriptor); if (NS_FAILED(rv)) return rv; char* relativeLocation = persistentDescriptor + mComponentsOffset + 1; rv = MakeRegistryName(relativeLocation, XPCOM_RELCOMPONENT_PREFIX, aRegistryName); } else { /* absolute names include volume info on Mac, so persistent descriptor */ rv = aSpec->GetPath(&persistentDescriptor); if (NS_FAILED(rv)) return rv; rv = MakeRegistryName(persistentDescriptor, XPCOM_ABSCOMPONENT_PREFIX, aRegistryName); } if (persistentDescriptor) nsMemory::Free(persistentDescriptor); return rv; } nsresult nsComponentManagerImpl::SpecForRegistryLocation(const char *aLocation, nsIFile **aSpec) { nsresult rv; if (!aLocation || !aSpec) return NS_ERROR_NULL_POINTER; /* abs:/full/path/to/libcomponent.so */ if (!nsCRT::strncmp(aLocation, XPCOM_ABSCOMPONENT_PREFIX, 4)) { nsLocalFile* file = new nsLocalFile; if (!file) return NS_ERROR_FAILURE; rv = file->InitWithPath(((char *)aLocation + 4)); file->QueryInterface(NS_GET_IID(nsILocalFile), (void**)aSpec); return rv; } if (!nsCRT::strncmp(aLocation, XPCOM_RELCOMPONENT_PREFIX, 4)) { if (!mComponentsDir) return NS_ERROR_NOT_INITIALIZED; nsILocalFile* file = nsnull; rv = mComponentsDir->Clone((nsIFile**)&file); if (NS_FAILED(rv)) return rv; rv = file->AppendRelativePath(aLocation + 4); *aSpec = file; return rv; } *aSpec = nsnull; return NS_ERROR_INVALID_ARG; } /** * RegisterFactory() * * Register a factory to be responsible for creation of implementation of * classID aClass. Plus creates as association of aClassName and aContractID * to the classID. If replace is PR_TRUE, we replace any existing registrations * with this one. * * Once registration is complete, we add the class to the factories cache * that we maintain. The factories cache is the ONLY place where these * registrations are ever kept. * * The other RegisterFunctions create a loader mapping and persistent * location, but we just slam it into the cache here. And we don't call the * loader's OnRegister function, either. */ nsresult nsComponentManagerImpl::RegisterFactory(const nsCID &aClass, const char *aClassName, const char *aContractID, nsIFactory *aFactory, PRBool aReplace) { nsFactoryEntry *entry = nsnull; nsIDKey key(aClass); nsAutoMonitor mon(mMon); entry = GetFactoryEntry(aClass, key, 0 /* dont check registry */); if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_ALWAYS)) { char *buf = aClass.ToString(); PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: RegisterFactory(%s, %s)", buf, (aContractID ? aContractID : "(null)"))); delete [] buf; } if (entry && !aReplace) { // Already registered PR_LOG(nsComponentManagerLog, PR_LOG_ERROR, ("\t\tFactory already registered.")); return NS_ERROR_FACTORY_EXISTS; } if (entry) { entry->ReInit(aClass, aFactory); } else { entry = new nsFactoryEntry(aClass, aFactory); if (entry == nsnull) return NS_ERROR_OUT_OF_MEMORY; nsFactoryTableEntry* factoryTableEntry = NS_STATIC_CAST(nsFactoryTableEntry*, PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_ADD)); if (!factoryTableEntry) return NS_ERROR_OUT_OF_MEMORY; factoryTableEntry->mFactoryEntry = entry; } // Update the ContractID->CLSID Map if (aContractID) { nsresult rv = HashContractID(aContractID, entry); if(NS_FAILED(rv)) { PR_LOG(nsComponentManagerLog, PR_LOG_WARNING, ("\t\tFactory register succeeded. " "Hashing contractid (%s) FAILED.", aContractID)); return rv; } } PR_LOG(nsComponentManagerLog, PR_LOG_WARNING, ("\t\tFactory register succeeded contractid=%s.", aContractID ? aContractID : "")); return NS_OK; } nsresult nsComponentManagerImpl::RegisterComponent(const nsCID &aClass, const char *aClassName, const char *aContractID, const char *aPersistentDescriptor, PRBool aReplace, PRBool aPersist) { return RegisterComponentCommon(aClass, aClassName, aContractID, aPersistentDescriptor, aReplace, aPersist, nativeComponentType); } nsresult nsComponentManagerImpl::RegisterComponentWithType(const nsCID &aClass, const char *aClassName, const char *aContractID, nsIFile *aSpec, const char *aLocation, PRBool aReplace, PRBool aPersist, const char *aType) { return RegisterComponentCommon(aClass, aClassName, aContractID, aLocation, aReplace, aPersist, aType); } /* * Register a component, using whatever they stuck in the nsIFile. */ nsresult nsComponentManagerImpl::RegisterComponentSpec(const nsCID &aClass, const char *aClassName, const char *aContractID, nsIFile *aLibrarySpec, PRBool aReplace, PRBool aPersist) { nsXPIDLCString registryName; nsresult rv = RegistryLocationForSpec(aLibrarySpec, getter_Copies(registryName)); if (NS_FAILED(rv)) return rv; rv = RegisterComponentWithType(aClass, aClassName, aContractID, aLibrarySpec, registryName, aReplace, aPersist, nativeComponentType); return rv; } /* * Register a ``library'', which is a DLL location named by a simple filename * such as ``libnsappshell.so'', rather than a relative or absolute path. * * It implies application/x-moz-dll as the component type, and skips the * FindLoaderForType phase. */ nsresult nsComponentManagerImpl::RegisterComponentLib(const nsCID &aClass, const char *aClassName, const char *aContractID, const char *aDllName, PRBool aReplace, PRBool aPersist) { nsXPIDLCString registryName; nsresult rv = RegistryNameForLib(aDllName, getter_Copies(registryName)); if (NS_FAILED(rv)) return rv; return RegisterComponentCommon(aClass, aClassName, aContractID, registryName, aReplace, aPersist, nativeComponentType); } /* * Add a component to the known universe of components. * Once we enter this function, we own aRegistryName, and must free it * or hand it to nsFactoryEntry. Common exit point ``out'' helps keep us * sane. */ nsresult nsComponentManagerImpl::RegisterComponentCommon(const nsCID &aClass, const char *aClassName, const char *aContractID, const char *aRegistryName, PRBool aReplace, PRBool aPersist, const char *aType) { nsresult rv = NS_OK; nsIDKey key(aClass); nsAutoMonitor mon(mMon); nsFactoryEntry *entry = GetFactoryEntry(aClass, !mPrePopulationDone); // Normalize proid and classname const char *contractID = (aContractID && *aContractID) ? aContractID : NULL; const char *className = (aClassName && *aClassName) ? aClassName : NULL; if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_ALWAYS)) { char *buf = aClass.ToString(); PR_LOG(nsComponentManagerLog, PR_LOG_DEBUG, ("nsComponentManager: RegisterComponentCommon(%s, %s, %s, %s)", buf, contractID ? contractID : "(null)", aRegistryName, aType)); delete [] buf; } if (entry && !aReplace) { PR_LOG(nsComponentManagerLog, PR_LOG_ERROR, ("\t\tFactory already registered.")); return NS_ERROR_FACTORY_EXISTS; } #ifdef USE_REGISTRY if (aPersist) { /* Add to the registry */ rv = AddComponentToRegistry(aClass, className, contractID, aRegistryName, aType); if (NS_FAILED(rv)) { PR_LOG(nsComponentManagerLog, PR_LOG_ERROR, ("\t\tadding %s %s to registry FAILED", className, contractID)); return rv; } } #endif int typeIndex = GetLoaderType(aType); nsCOMPtr loader; rv = GetLoaderForType(typeIndex, getter_AddRefs(loader)); if (NS_FAILED(rv)) { PR_LOG(nsComponentManagerLog, PR_LOG_ERROR, ("\t\tgetting loader for %s FAILED\n", aType)); return rv; } if (entry) { entry->ReInit(aClass, aRegistryName, typeIndex); } else { entry = new nsFactoryEntry(aClass, aRegistryName, typeIndex); if (!entry) return NS_ERROR_OUT_OF_MEMORY; nsFactoryTableEntry* factoryTableEntry = NS_STATIC_CAST(nsFactoryTableEntry*, PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_ADD)); if (!factoryTableEntry) return NS_ERROR_OUT_OF_MEMORY; factoryTableEntry->mFactoryEntry = entry; } // Update the ContractID->CLSID Map if (contractID #ifdef USE_REGISTRY && (mPrePopulationDone || !aPersist) #endif ) { rv = HashContractID(contractID, entry); if (NS_FAILED(rv)) { PR_LOG(nsComponentManagerLog, PR_LOG_ERROR, ("\t\tHashContractID(%s) FAILED\n", contractID)); return rv; } } // Let the loader do magic things now rv = loader->OnRegister(aClass, aType, className, contractID, aRegistryName, aReplace, aPersist); if (NS_FAILED(rv)) { PR_LOG(nsComponentManagerLog, PR_LOG_ERROR, ("\t\tloader->OnRegister FAILED for %s \"%s\" %s %s", aType, className, contractID, aRegistryName)); return rv; } PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("\t\tRegisterComponentCommon() %s", NS_SUCCEEDED(rv) ? "succeeded" : "FAILED")); return rv; } nsresult nsComponentManagerImpl::GetLoaderForType(int aType, nsIComponentLoader **aLoader) { nsresult rv; // Make sure we have a valid type if (aType < 0 || aType >= mNLoaderData) return NS_ERROR_INVALID_ARG; *aLoader = mLoaderData[aType].loader; if (*aLoader) { NS_ADDREF(*aLoader); return NS_OK; } nsCOMPtr loader; loader = do_GetServiceFromCategory("component-loader", mLoaderData[aType].type, &rv); if (NS_FAILED(rv)) return rv; rv = loader->Init(this, mRegistry); if (NS_SUCCEEDED(rv)) { mLoaderData[aType].loader = loader; NS_ADDREF(mLoaderData[aType].loader); *aLoader = loader; NS_ADDREF(*aLoader); } return rv; } // Convert a loader type string into an index into the component data // array. Empty loader types are converted to NATIVE. Returns -1 if // loader type cannot be determined. int nsComponentManagerImpl::GetLoaderType(const char *typeStr) { if (!typeStr || !*typeStr) { // Empty type strings are NATIVE return NS_COMPONENT_TYPE_NATIVE; } for (int i=NS_COMPONENT_TYPE_NATIVE; i= 0) { return typeIndex; } // Add the loader type if (mNLoaderData >= mMaxNLoaderData) { NS_ASSERTION(mNLoaderData == mMaxNLoaderData, "Memory corruption. nsComponentManagerImpl::mLoaderData array overrun."); // Need to increase our loader array nsLoaderdata *new_mLoaderData = (nsLoaderdata *) PR_Realloc(mLoaderData, (mMaxNLoaderData + NS_LOADER_DATA_ALLOC_STEP) * sizeof(nsLoaderdata)); if (!new_mLoaderData) return NS_ERROR_OUT_OF_MEMORY; mLoaderData = new_mLoaderData; mMaxNLoaderData += NS_LOADER_DATA_ALLOC_STEP; } typeIndex = mNLoaderData; mLoaderData[typeIndex].type = PL_strdup(typeStr); if (!mLoaderData[typeIndex].type) { // mmh! no memory. return failure. return NS_ERROR_OUT_OF_MEMORY; } mLoaderData[typeIndex].loader = nsnull; mNLoaderData++; return typeIndex; } nsresult nsComponentManagerImpl::AddComponentToRegistry(const nsCID &aClass, const char *aClassName, const char *aContractID, const char *aRegistryName, const char *aType) { nsresult rv; PRUint32 length = strlen(aRegistryName); char* eRegistryName; rv = mRegistry->EscapeKey((PRUint8*)aRegistryName, 1, &length, (PRUint8**)&eRegistryName); if (rv != NS_OK) { return rv; } if (eRegistryName == nsnull) // No escaping required eRegistryName = (char*)aRegistryName; nsRegistryKey IDKey; PRInt32 nComponents = 0; /* so why do we use strings here rather than writing bytes, anyway? */ char *cidString = aClass.ToString(); if (!cidString) return NS_ERROR_OUT_OF_MEMORY; rv = mRegistry->AddSubtreeRaw(mCLSIDKey, cidString, &IDKey); if (NS_FAILED(rv)) goto out; if (aClassName) { rv = mRegistry->SetStringUTF8(IDKey, classNameValueName, aClassName); if (NS_FAILED(rv)) goto out; } rv = mRegistry->SetBytesUTF8(IDKey, inprocServerValueName, strlen(aRegistryName) + 1, (PRUint8*)aRegistryName); if (NS_FAILED(rv)) goto out; rv = mRegistry->SetStringUTF8(IDKey, componentTypeValueName, aType); if (NS_FAILED(rv)) goto out; if (aContractID) { rv = mRegistry->SetStringUTF8(IDKey, contractIDValueName, aContractID); if (NS_FAILED(rv)) goto out; nsRegistryKey contractIDKey; rv = mRegistry->AddSubtreeRaw(mClassesKey, aContractID, &contractIDKey); if (NS_FAILED(rv)) goto out; rv = mRegistry->SetStringUTF8(contractIDKey, classIDValueName, cidString); if (NS_FAILED(rv)) goto out; } nsRegistryKey compKey; rv = mRegistry->AddSubtreeRaw(mXPCOMKey, eRegistryName, &compKey); // update component count rv = mRegistry->GetInt(compKey, componentCountValueName, &nComponents); nComponents++; rv = mRegistry->SetInt(compKey, componentCountValueName, nComponents); if (NS_FAILED(rv)) goto out; out: // XXX if failed, undo registry adds or set invalid bit? How? nsCRT::free(cidString); if (eRegistryName != aRegistryName) nsMemory::Free(eRegistryName); return rv; } typedef struct { const nsCID* cid; const char* regName; nsIFactory* factory; } UnregisterConditions; static PLDHashOperator PR_CALLBACK DeleteFoundCIDs(PLDHashTable *aTable, PLDHashEntryHdr *aHdr, PRUint32 aNumber, void *aData) { nsContractIDTableEntry* entry = NS_STATIC_CAST(nsContractIDTableEntry*, aHdr); if (!entry->mFactoryEntry || entry->mFactoryEntry == kNonExistentContractID) return PL_DHASH_NEXT; UnregisterConditions* data = (UnregisterConditions*)aData; nsFactoryEntry* factoryEntry = entry->mFactoryEntry; if (data->cid->Equals(factoryEntry->cid) && ((data->regName && !PL_strcasecmp(factoryEntry->location, data->regName)) || (data->factory && data->factory == factoryEntry->factory.get()))) return PL_DHASH_REMOVE; return PL_DHASH_NEXT; } void nsComponentManagerImpl::DeleteContractIDEntriesByCID(const nsCID* aClass, const char*registryName) { UnregisterConditions aData; aData.cid = aClass; aData.regName = registryName; aData.factory = nsnull; PL_DHashTableEnumerate(&mContractIDs, DeleteFoundCIDs, (void*)&aData); } void nsComponentManagerImpl::DeleteContractIDEntriesByCID(const nsCID* aClass, nsIFactory* factory) { UnregisterConditions aData; aData.cid = aClass; aData.regName = nsnull; aData.factory = factory; PL_DHashTableEnumerate(&mContractIDs, DeleteFoundCIDs, (void*)&aData); } nsresult nsComponentManagerImpl::UnregisterFactory(const nsCID &aClass, nsIFactory *aFactory) { if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_ALWAYS)) { char *buf = aClass.ToString(); PR_LOG(nsComponentManagerLog, PR_LOG_DEBUG, ("nsComponentManager: UnregisterFactory(%s)", buf)); delete [] buf; } nsFactoryEntry *old; // first delete all contract id entries that are registered with this cid. DeleteContractIDEntriesByCID(&aClass, aFactory); // next check to see if there is a CID registered nsIDKey key(aClass); nsresult res = NS_ERROR_FACTORY_NOT_REGISTERED; old = GetFactoryEntry(aClass, key, 0 /* dont check registry */); if (old && (old->factory.get() == aFactory)) { nsAutoMonitor mon(mMon); PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_REMOVE); res = NS_OK; } PR_LOG(nsComponentManagerLog, PR_LOG_WARNING, ("\t\tUnregisterFactory() %s", NS_SUCCEEDED(res) ? "succeeded" : "FAILED")); return res; } nsresult nsComponentManagerImpl::UnregisterComponent(const nsCID &aClass, const char *registryName) { if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_ALWAYS)) { char *buf = aClass.ToString(); PR_LOG(nsComponentManagerLog, PR_LOG_DEBUG, ("nsComponentManager: UnregisterComponent(%s)", buf)); delete [] buf; } NS_ENSURE_ARG_POINTER(registryName); nsresult rv; nsFactoryEntry *old; // first delete all contract id entries that are registered with this cid. DeleteContractIDEntriesByCID(&aClass, registryName); // next check to see if there is a CID registered nsIDKey key(aClass); old = GetFactoryEntry(aClass, key, 0 /* dont check registry */); if (old && old->location && !PL_strcasecmp(old->location, registryName)) { nsAutoMonitor mon(mMon); PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_REMOVE); } #ifdef USE_REGISTRY // Remove registry entries for this cid char *cidString = aClass.ToString(); rv = PlatformUnregister(cidString, registryName); delete [] cidString; #endif PR_LOG(nsComponentManagerLog, PR_LOG_WARNING, ("nsComponentManager: Factory unregister(%s) %s.", registryName, NS_SUCCEEDED(rv) ? "succeeded" : "FAILED")); return rv; } nsresult nsComponentManagerImpl::UnregisterComponentSpec(const nsCID &aClass, nsIFile *aLibrarySpec) { nsXPIDLCString registryName; nsresult rv = RegistryLocationForSpec(aLibrarySpec, getter_Copies(registryName)); if (NS_FAILED(rv)) return rv; return UnregisterComponent(aClass, registryName); } // XXX Need to pass in aWhen and servicemanager nsresult nsComponentManagerImpl::FreeLibraries(void) { return UnloadLibraries(NS_STATIC_CAST(nsIServiceManager*, this), NS_Timer); // XXX when } // Private implementation of unloading libraries nsresult nsComponentManagerImpl::UnloadLibraries(nsIServiceManager *serviceMgr, PRInt32 aWhen) { nsresult rv = NS_OK; nsAutoMonitor mon(mMon); PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Unloading Libraries.")); // UnloadAll the loaders /* iterate over all known loaders and ask them to autoregister. */ // Skip mNativeComponentLoader for (int i=NS_COMPONENT_TYPE_NATIVE + 1; iUnloadAll(aWhen); if (NS_FAILED(rv)) break; } } // UnloadAll the native loader rv = mNativeComponentLoader->UnloadAll(aWhen); return rv; } //////////////////////////////////////////////////////////////////////////////// /** * AutoRegister(RegistrationInstant, const char *directory) * * Given a directory in the following format, this will ensure proper registration * of all components. No default directory is looked at. * * Directory and fullname are what NSPR will accept. For eg. * WIN y:/home/dp/mozilla/dist/bin * UNIX /home/dp/mozilla/dist/bin * MAC /Hard drive/mozilla/dist/apprunner * * This will take care not loading already registered dlls, finding and * registering new dlls, re-registration of modified dlls * */ nsresult nsComponentManagerImpl::AutoRegister(PRInt32 when, nsIFile *inDirSpec) { nsresult rv; ((nsRegistry *)mRegistry)->SetBufferSize( BIG_REGISTRY_BUFLEN ); rv = AutoRegisterImpl(when, inDirSpec); mRegistry->Flush(); ((nsRegistry *)mRegistry)->SetBufferSize( -1 ); return rv; } nsresult nsComponentManagerImpl::AutoRegisterImpl(PRInt32 when, nsIFile *inDirSpec, PRBool fileIsCompDir) { nsCOMPtr dir; nsresult rv; #ifdef DEBUG // testing release behaviour if (getenv("XPCOM_NO_AUTOREG")) return NS_OK; #endif if (inDirSpec) { // Use supplied components' directory dir = inDirSpec; if (fileIsCompDir) { // Set components' directory for AutoRegisterInterfces to query nsCOMPtr directoryService = do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv); if (NS_FAILED(rv)) return rv; // Don't care if undefining fails directoryService->Undefine(NS_XPCOM_COMPONENT_DIR); rv = directoryService->Define(NS_XPCOM_COMPONENT_DIR, dir); if (NS_FAILED(rv)) return rv; } } else { // Do default components directory nsCOMPtr directoryService = do_GetService(NS_DIRECTORY_SERVICE_CONTRACTID, &rv); if (NS_FAILED(rv)) return rv; rv = directoryService->Get(NS_XPCOM_COMPONENT_DIR, NS_GET_IID(nsIFile), getter_AddRefs(dir)); if (NS_FAILED(rv)) return rv; // XXX translate error code? } nsCOMPtr iim = dont_AddRef(XPTI_GetInterfaceInfoManager()); if (!iim) return NS_ERROR_UNEXPECTED; // Notify observers of xpcom autoregistration start NS_CreateServicesFromCategory(NS_XPCOM_AUTOREGISTRATION_OBSERVER_ID, nsnull, "start"); /* do the native loader first, so we can find other loaders */ rv = mNativeComponentLoader->AutoRegisterComponents((PRInt32)when, dir); if (NS_FAILED(rv)) return rv; #ifdef ENABLE_STATIC_COMPONENT_LOADER rv = mStaticComponentLoader->AutoRegisterComponents((PRInt32)when, dir); if (NS_FAILED(rv)) return rv; #endif /* do InterfaceInfoManager after native loader so it can use components. */ rv = iim->AutoRegisterInterfaces(); if (NS_FAILED(rv)) return rv; nsCOMPtr catman = do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv); if (NS_FAILED(rv)) return rv; nsCOMPtr loaderEnum; rv = catman->EnumerateCategory("component-loader", getter_AddRefs(loaderEnum)); if (NS_FAILED(rv)) return rv; PRBool hasMore; while (NS_SUCCEEDED(loaderEnum->HasMoreElements(&hasMore)) && hasMore) { nsCOMPtr supports; if (NS_FAILED(loaderEnum->GetNext(getter_AddRefs(supports)))) continue; nsCOMPtr supStr = do_QueryInterface(supports); if (!supStr) continue; nsXPIDLCString loaderType; if (NS_FAILED(supStr->GetData(getter_Copies(loaderType)))) continue; // We depend on the loader being created. Add the loader type and // create the loader object too. nsCOMPtr loader; GetLoaderForType(AddLoaderType(loaderType), getter_AddRefs(loader)); } /* iterate over all known loaders and ask them to autoregister. */ /* XXX convert when to nsIComponentLoader::(when) properly */ nsIFile *spec = dir.get(); for (int i = NS_COMPONENT_TYPE_NATIVE + 1; i < mNLoaderData; i++) { if (!mLoaderData[i].loader) { rv = GetLoaderForType(i, &mLoaderData[i].loader); if (NS_FAILED(rv)) continue; } rv = mLoaderData[i].loader->AutoRegisterComponents(when, spec); if (NS_FAILED(rv)) break; } if (NS_SUCCEEDED(rv)) { PRBool registered; do { registered = PR_FALSE; for (int i = NS_COMPONENT_TYPE_NATIVE; i < mNLoaderData; i++) { PRBool b = PR_FALSE; if (mLoaderData[i].loader) { rv = mLoaderData[i].loader->RegisterDeferredComponents(when, &b); if (NS_FAILED(rv)) continue; registered |= b; } } } while (NS_SUCCEEDED(rv) && registered); } // Notify observers of xpcom autoregistration completion NS_CreateServicesFromCategory(NS_XPCOM_AUTOREGISTRATION_OBSERVER_ID, nsnull, "end"); return rv; } nsresult nsComponentManagerImpl::AutoRegisterComponent(PRInt32 when, nsIFile *component) { nsresult rv = NS_OK; /* * Do we have to give the native loader first crack at it? * I vote ``no''. */ for (int i = 0; i < mNLoaderData; i++) { PRBool didRegister; if (!mLoaderData[i].loader) { rv = GetLoaderForType(i, &mLoaderData[i].loader); if (NS_FAILED(rv)) continue; } rv = mLoaderData[i].loader->AutoRegisterComponent((int)when, component, &didRegister); if (NS_SUCCEEDED(rv) && didRegister) break; } return NS_FAILED(rv) ? NS_ERROR_FACTORY_NOT_REGISTERED : NS_OK; } nsresult nsComponentManagerImpl::AutoUnregisterComponent(PRInt32 when, nsIFile *component) { nsresult rv = NS_OK; for (int i = 0; i < mNLoaderData; i++) { PRBool didUnRegister; if (!mLoaderData[i].loader) { rv = GetLoaderForType(i, &mLoaderData[i].loader); if (NS_FAILED(rv)) continue; } rv = mLoaderData[i].loader->AutoUnregisterComponent(when, component, &didUnRegister); if (NS_SUCCEEDED(rv) && didUnRegister) break; } return NS_FAILED(rv) ? NS_ERROR_FACTORY_NOT_REGISTERED : NS_OK; } nsresult nsComponentManagerImpl::IsRegistered(const nsCID &aClass, PRBool *aRegistered) { if(!aRegistered) { NS_ASSERTION(0, "null ptr"); return NS_ERROR_NULL_POINTER; } *aRegistered = (nsnull != GetFactoryEntry(aClass)); return NS_OK; } nsresult nsComponentManagerImpl::EnumerateCLSIDs(nsIEnumerator** aEnumerator) { NS_ASSERTION(aEnumerator != nsnull, "null ptr"); if(!aEnumerator) { return NS_ERROR_NULL_POINTER; } *aEnumerator = nsnull; nsresult rv; if(!mPrePopulationDone) { rv = PlatformPrePopulateRegistry(); if(NS_FAILED(rv)) return rv; } PLDHashTableEnumeratorImpl *aEnum; rv = PL_NewDHashTableEnumerator(&mFactories, ConvertFactoryEntryToCID, nsnull, &aEnum); if (NS_FAILED(rv)) return rv; *aEnumerator = NS_REINTERPRET_CAST(nsIEnumerator*, aEnum); return NS_OK; } nsresult nsComponentManagerImpl::EnumerateContractIDs(nsIEnumerator** aEnumerator) { NS_ASSERTION(aEnumerator != nsnull, "null ptr"); if(!aEnumerator) { return NS_ERROR_NULL_POINTER; } *aEnumerator = nsnull; nsresult rv; if(!mPrePopulationDone) { rv = PlatformPrePopulateRegistry(); if(NS_FAILED(rv)) return rv; } PLDHashTableEnumeratorImpl *aEnum; rv = PL_NewDHashTableEnumerator(&mContractIDs, ConvertContractIDKeyToString, nsnull, &aEnum); if (NS_FAILED(rv)) return rv; *aEnumerator = NS_REINTERPRET_CAST(nsIEnumerator*, aEnum); return NS_OK; } // nsIComponentRegistrar NS_IMETHODIMP nsComponentManagerImpl::AutoRegister(nsIFile *aSpec) { if (aSpec == nsnull) return AutoRegisterImpl(0, aSpec); PRBool directory; aSpec->IsDirectory(&directory); if (directory) return AutoRegisterImpl(0, aSpec, PR_FALSE); return AutoRegisterComponent(0, aSpec); } NS_IMETHODIMP nsComponentManagerImpl::AutoUnregister(nsIFile *aSpec) { // unregistering a complete directory is not implmeneted yet...FIX if (aSpec == nsnull) return NS_ERROR_NOT_IMPLEMENTED; PRBool directory; aSpec->IsDirectory(&directory); if (directory) return NS_ERROR_NOT_IMPLEMENTED; return AutoUnregisterComponent(0, aSpec); } NS_IMETHODIMP nsComponentManagerImpl::RegisterFactory(const nsCID & aClass, const char *aClassName, const char *aContractID, nsIFactory *aFactory) { return RegisterFactory(aClass, aClassName, aContractID, aFactory, PR_TRUE); } NS_IMETHODIMP nsComponentManagerImpl::RegisterFactoryLocation(const nsCID & aClass, const char *aClassName, const char *aContractID, nsIFile *aFile, const char *loaderStr, const char *aType) { nsXPIDLCString registryName; if (!loaderStr) { nsresult rv = RegistryLocationForSpec(aFile, getter_Copies(registryName)); if (NS_FAILED(rv)) return rv; } nsresult rv; rv = RegisterComponentWithType(aClass, aClassName, aContractID, aFile, (loaderStr ? loaderStr : registryName.get()), PR_TRUE, PR_TRUE, (aType ? aType : nativeComponentType) ); return rv; } NS_IMETHODIMP nsComponentManagerImpl::UnregisterFactoryLocation(const nsCID & aClass, nsIFile *aFile) { return UnregisterComponentSpec(aClass, aFile); } NS_IMETHODIMP nsComponentManagerImpl::IsCIDRegistered(const nsCID & aClass, PRBool *_retval) { return IsRegistered(aClass, _retval); } NS_IMETHODIMP nsComponentManagerImpl::IsContractIDRegistered(const char *aClass, PRBool *_retval) { nsFactoryEntry *entry = GetFactoryEntry(aClass); if (!entry || entry == kNonExistentContractID) *_retval = PR_FALSE; else *_retval = PR_TRUE; return NS_OK; } NS_IMETHODIMP nsComponentManagerImpl::EnumerateCIDs(nsISimpleEnumerator **aEnumerator) { NS_ASSERTION(aEnumerator != nsnull, "null ptr"); if(!aEnumerator) return NS_ERROR_NULL_POINTER; *aEnumerator = nsnull; nsresult rv; if(!mPrePopulationDone) { rv = PlatformPrePopulateRegistry(); if(NS_FAILED(rv)) return rv; } PLDHashTableEnumeratorImpl *aEnum; rv = PL_NewDHashTableEnumerator(&mFactories, ConvertFactoryEntryToCID, nsnull, &aEnum); if (NS_FAILED(rv)) return rv; *aEnumerator = NS_REINTERPRET_CAST(nsISimpleEnumerator*, aEnum); return NS_OK; } NS_IMETHODIMP nsComponentManagerImpl::EnumerateContractIDs(nsISimpleEnumerator **aEnumerator) { NS_ASSERTION(aEnumerator != nsnull, "null ptr"); if(!aEnumerator) return NS_ERROR_NULL_POINTER; *aEnumerator = nsnull; nsresult rv; if(!mPrePopulationDone) { rv = PlatformPrePopulateRegistry(); if(NS_FAILED(rv)) return rv; } PLDHashTableEnumeratorImpl *aEnum; rv = PL_NewDHashTableEnumerator(&mContractIDs, ConvertContractIDKeyToString, nsnull, &aEnum); if (NS_FAILED(rv)) return rv; *aEnumerator = NS_REINTERPRET_CAST(nsISimpleEnumerator*, aEnum); return NS_OK; } NS_IMETHODIMP nsComponentManagerImpl::CIDToContractID(const nsCID & aClass, char **_retval) { return CLSIDToContractID(aClass, nsnull, _retval); } NS_IMETHODIMP nsComponentManagerImpl::ContractIDToCID(const char *aContractID, nsCID * *_retval) { nsCID aCID; nsresult rv = ContractIDToClassID(aContractID, &aCID); if (NS_FAILED(rv)) return rv; // not sure about this... FIX *_retval = (nsCID*) nsMemory::Alloc(sizeof(nsCID)); *_retval = &aCID; return NS_OK; } // end nsIComponentRegistrar //////////////////////////////////////////////////////////////////////////////// // Static Access Functions //////////////////////////////////////////////////////////////////////////////// NS_COM nsresult NS_GetGlobalComponentManager(nsIComponentManager* *result) { #ifdef DEBUG_dougt // NS_WARNING("DEPRECATED FUNCTION: Use NS_GetComponentManager"); #endif nsresult rv = NS_OK; if (nsComponentManagerImpl::gComponentManager == NULL) { // XPCOM needs initialization. rv = NS_InitXPCOM2(nsnull, nsnull, nsnull); } if (NS_SUCCEEDED(rv)) { // NO ADDREF since this is never intended to be released. // See nsComponentManagerObsolete.h for the reason for such // casting uglyness *result = (nsIComponentManager*)(void*)(nsIComponentManagerObsolete*) nsComponentManagerImpl::gComponentManager; } return rv; } NS_COM nsresult NS_GetComponentManager(nsIComponentManager* *result) { nsresult rv = NS_OK; if (nsComponentManagerImpl::gComponentManager == NULL) { // XPCOM needs initialization. rv = NS_InitXPCOM2(nsnull, nsnull, nsnull); } if (NS_FAILED(rv)) return rv; *result = NS_STATIC_CAST(nsIComponentManager*, nsComponentManagerImpl::gComponentManager); NS_IF_ADDREF(*result); return NS_OK; } NS_COM nsresult NS_GetServiceManager(nsIServiceManager* *result) { nsresult rv = NS_OK; if (nsComponentManagerImpl::gComponentManager == NULL) { // XPCOM needs initialization. rv = NS_InitXPCOM2(nsnull, nsnull, nsnull); } if (NS_FAILED(rv)) return rv; *result = NS_STATIC_CAST(nsIServiceManager*, nsComponentManagerImpl::gComponentManager); NS_IF_ADDREF(*result); return NS_OK; } NS_COM nsresult NS_GetComponentRegistrar(nsIComponentRegistrar* *result) { nsresult rv = NS_OK; if (nsComponentManagerImpl::gComponentManager == NULL) { // XPCOM needs initialization. rv = NS_InitXPCOM2(nsnull, nsnull, nsnull); } if (NS_FAILED(rv)) return rv; *result = NS_STATIC_CAST(nsIComponentRegistrar*, nsComponentManagerImpl::gComponentManager); NS_IF_ADDREF(*result); return NS_OK; }