/* -*- Mode: C++; tab-width: 4; 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 "nspr.h" #include "nsCRT.h" // for atoll // Arena used by component manager for storing contractid string, dll // location strings and small objects // CAUTION: Arena align mask needs to be defined before including plarena.h // currently from nsComponentManager.h #define PL_ARENA_CONST_ALIGN_MASK 7 #define NS_CM_BLOCK_SIZE (1024 * 8) #include "nsAutoLock.h" #include "nsCOMPtr.h" #include "nsComponentManager.h" #include "nsComponentManagerObsolete.h" #include "nsDirectoryService.h" #include "nsDirectoryServiceDefs.h" #include "nsICategoryManager.h" #include "nsCategoryManager.h" #include "nsCategoryManagerUtils.h" #include "nsIComponentLoader.h" #include "nsIEnumerator.h" #include "nsIInterfaceInfoManager.h" #include "nsIModule.h" #include "nsIObserverService.h" #include "nsISimpleEnumerator.h" #include "nsXPCOM.h" #include "nsISupportsPrimitives.h" #include "nsLocalFile.h" #include "nsNativeComponentLoader.h" #include "nsReadableUtils.h" #include "nsString.h" #include "nsXPIDLString.h" #include "prcmon.h" #include "xptinfo.h" // this after nsISupports, to pick up IID so that xpt stuff doesn't try to define it itself... #include "nsInt64.h" #include "nsManifestLineReader.h" #include NEW_H // for placement new #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 = nsnull; #if defined(DEBUG) // #define SHOW_DENIED_ON_SHUTDOWN // #define SHOW_CI_ON_EXISTING_SERVICE #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 static char XPCOM_GRECOMPONENT_PREFIX[] = "gre:"; static const char gIDFormat[] = "{%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}"; // 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); NS_DEFINE_CID(kCategoryManagerCID, NS_CATEGORYMANAGER_CID); #define UID_STRING_LENGTH 39 // Set to true from NS_ShutdownXPCOM. extern PRBool gXPCOMShuttingDown; static void GetIDString(const nsID& aCID, char buf[UID_STRING_LENGTH]) { PR_snprintf(buf, UID_STRING_LENGTH, gIDFormat, aCID.m0, (PRUint32) aCID.m1, (PRUint32) aCID.m2, (PRUint32) aCID.m3[0], (PRUint32) aCID.m3[1], (PRUint32) aCID.m3[2], (PRUint32) aCID.m3[3], (PRUint32) aCID.m3[4], (PRUint32) aCID.m3[5], (PRUint32) aCID.m3[6], (PRUint32) aCID.m3[7]); } nsresult nsCreateInstanceFromCategory::operator()(const nsIID& aIID, void** aInstancePtr) const { /* * If I were a real man, I would consolidate this with * nsGetServiceFromContractID::operator(). */ nsresult rv; nsXPIDLCString value; nsCOMPtr compMgr; nsCOMPtr catman = do_GetService(kCategoryManagerCID, &rv); if (NS_FAILED(rv)) goto error; if (!mCategory || !mEntry) { // when categories have defaults, use that for null mEntry rv = NS_ERROR_NULL_POINTER; goto error; } /* find the contractID for category.entry */ rv = catman->GetCategoryEntry(mCategory, mEntry, getter_Copies(value)); if (NS_FAILED(rv)) goto error; if (!value) { rv = NS_ERROR_SERVICE_NOT_FOUND; goto error; } NS_GetComponentManager(getter_AddRefs(compMgr)); if (!compMgr) return NS_ERROR_FAILURE; compMgr->CreateInstanceByContractID(value, mOuter, aIID, aInstancePtr); if (NS_FAILED(rv)) { error: *aInstancePtr = 0; } *mErrorPtr = rv; return rv; } nsresult nsGetServiceFromCategory::operator()(const nsIID& aIID, void** aInstancePtr) const { nsresult rv; nsXPIDLCString value; nsCOMPtr catman = do_GetService(kCategoryManagerCID, &rv); if (NS_FAILED(rv)) goto error; if (!mCategory || !mEntry) { // when categories have defaults, use that for null mEntry rv = NS_ERROR_NULL_POINTER; goto error; } /* find the contractID for category.entry */ rv = catman->GetCategoryEntry(mCategory, mEntry, getter_Copies(value)); if (NS_FAILED(rv)) goto error; if (!value) { rv = NS_ERROR_SERVICE_NOT_FOUND; goto error; } if (mServiceManager) { rv = mServiceManager->GetServiceByContractID(value, aIID, (void**)aInstancePtr); } else { nsCOMPtr mgr; NS_GetServiceManager(getter_AddRefs(mgr)); if (mgr) rv = mgr->GetServiceByContractID(value, aIID, (void**)aInstancePtr); } if (NS_FAILED(rv)) { error: *aInstancePtr = 0; } *mErrorPtr = rv; return rv; } //////////////////////////////////////////////////////////////////////////////// // Arena helper functions //////////////////////////////////////////////////////////////////////////////// char * ArenaStrndup(const char *s, PRUint32 len, PLArenaPool *arena) { void *mem; // Include trailing null in the len PL_ARENA_ALLOCATE(mem, arena, len+1); if (mem) memcpy(mem, s, len+1); return NS_STATIC_CAST(char *, mem); } char* ArenaStrdup(const char *s, PLArenaPool *arena) { return ArenaStrndup(s, strlen(s), arena); } //////////////////////////////////////////////////////////////////////////////// // 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); // nsFactoryEntry is arena allocated. So we dont delete it. // We call the destructor by hand. entry->mFactoryEntry->~nsFactoryEntry(); 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. // nsFactoryEntry is arena allocated. So we dont delete it. // We call the destructor by hand. entry->mFactoryEntry->~nsFactoryEntry(); } // contractIDs are arena allocated. No need to free them. 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, PRUint32 locationlen, int aType) : cid(aClass), typeIndex(aType) { // Arena allocate the location string location = ArenaStrndup(aLocation, locationlen, &nsComponentManagerImpl::gComponentManager->mArena); } nsFactoryEntry::nsFactoryEntry(const nsCID &aClass, nsIFactory *aFactory) : cid(aClass), typeIndex(NS_COMPONENT_TYPE_FACTORY_ONLY) { factory = aFactory; location = nsnull; } // nsFactoryEntry is usually arena allocated including the strings it // holds. So we call destructor by hand. nsFactoryEntry::~nsFactoryEntry(void) { // Release the reference to the factory factory = nsnull; // Release any service reference mServiceObject = nsnull; } 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); // Arena allocate the location string location = ArenaStrdup(aLocation, &nsComponentManagerImpl::gComponentManager->mArena); 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); 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) nsAutoMonitor::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_ENUMERATOR_FALSE; } 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; nsComponentManagerImpl *cm = NS_STATIC_CAST(nsComponentManagerImpl *, data); rv = cm->CreateInstanceByContractID(NS_SUPPORTS_ID_CONTRACTID, nsnull, NS_GET_IID(nsISupportsID), getter_AddRefs(wrapper)); 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; } *retval = nsnull; return rv; } static NS_IMETHODIMP ConvertContractIDKeyToString(PLDHashTable *table, const PLDHashEntryHdr *hdr, void *data, nsISupports **retval) { nsresult rv; nsCOMPtr wrapper; nsComponentManagerImpl *cm = NS_STATIC_CAST(nsComponentManagerImpl *, data); rv = cm->CreateInstanceByContractID(NS_SUPPORTS_CSTRING_CONTRACTID, nsnull, NS_GET_IID(nsISupportsCString), getter_AddRefs(wrapper)); NS_ENSURE_SUCCESS(rv, rv); const nsContractIDTableEntry *entry = NS_REINTERPRET_CAST(const nsContractIDTableEntry *, hdr); wrapper->SetData(nsDependentCString(entry->mContractID, entry->mContractIDLen)); *retval = wrapper; NS_ADDREF(*retval); return NS_OK; } // this is safe to call during InitXPCOM static nsresult GetLocationFromDirectoryService(const char* prop, nsIFile** aDirectory) { nsCOMPtr directoryService; nsDirectoryService::Create(nsnull, NS_GET_IID(nsIProperties), getter_AddRefs(directoryService)); if (!directoryService) return NS_ERROR_FAILURE; return directoryService->Get(prop, NS_GET_IID(nsIFile), (void**)aDirectory); } //////////////////////////////////////////////////////////////////////////////// // nsComponentManagerImpl //////////////////////////////////////////////////////////////////////////////// nsComponentManagerImpl::nsComponentManagerImpl() : mMon(NULL), mNativeComponentLoader(0), #ifdef ENABLE_STATIC_COMPONENT_LOADER mStaticComponentLoader(0), #endif mShuttingDown(NS_SHUTDOWN_NEVERHAPPENED), mLoaderData(nsnull), mRegistryDirty(PR_FALSE) { 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 == nsnull) { nsComponentManagerLog = PR_NewLogModule("nsComponentManager"); } // Initialize our arena PL_INIT_ARENA_POOL(&mArena, "ComponentManagerArena", NS_CM_BLOCK_SIZE); 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=2 because nsFactoryTableEntry saves two // words compared to what a chained hash table requires. PL_DHashTableSetAlphaBounds(&mFactories, 0.875, PL_DHASH_MIN_ALPHA(&mFactories, 2)); } 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=1 because nsContractIDTableEntry saves one // word compared to what a chained hash table requires. #if 0 PL_DHashTableSetAlphaBounds(&mContractIDs, 0.875, PL_DHASH_MIN_ALPHA(&mContractIDs, 1)); #endif } if (mMon == nsnull) { mMon = nsAutoMonitor::NewMonitor("nsComponentManagerImpl"); if (mMon == nsnull) 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); nsresult rv = mNativeComponentLoader->Init(this, nsnull); if (NS_FAILED(rv)) return rv; } // 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++; if (mStaticComponentLoader) { /* Init the static loader */ mStaticComponentLoader->Init(this, nsnull); } #endif GetLocationFromDirectoryService(NS_XPCOM_COMPONENT_DIR, getter_AddRefs(mComponentsDir)); if (!mComponentsDir) return NS_ERROR_OUT_OF_MEMORY; nsCAutoString componentDescriptor; nsresult rv = mComponentsDir->GetNativePath(componentDescriptor); if (NS_FAILED(rv)) return rv; mComponentsOffset = componentDescriptor.Length(); GetLocationFromDirectoryService(NS_GRE_COMPONENT_DIR, getter_AddRefs(mGREComponentsDir)); if (mGREComponentsDir) { nsresult rv = mGREComponentsDir->GetNativePath(componentDescriptor); if (NS_FAILED(rv)) { NS_WARNING("No GRE component manager"); return rv; } mGREComponentsOffset = componentDescriptor.Length(); } GetLocationFromDirectoryService(NS_XPCOM_COMPONENT_REGISTRY_FILE, getter_AddRefs(mRegistryFile)); if(!mRegistryFile) { NS_WARNING("No Component Registry file was found in the directory service"); return NS_ERROR_FAILURE; } PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Initialized.")); return NS_OK; } PRIntn PR_CALLBACK AutoRegEntryDestroy(nsHashKey *aKey, void *aData, void* aClosure) { delete (AutoRegEntry*)aData; return kHashEnumerateNext; } 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.")); PRInt32 i; // Write out our component data file. if (mRegistryDirty) { nsresult rv = WritePersistentRegistry(); if (NS_FAILED(rv)) { PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Could not write out perisistant registry.")); #ifdef DEBUG printf("Could not write out perisistant registry!\n"); #endif } } mAutoRegEntries.Reset(AutoRegEntryDestroy); // 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(nsnull, NS_Shutdown); // delete arena for strings and small objects PL_FinishArenaPool(&mArena); mComponentsDir = 0; mCategoryManager = 0; // Release all the component data - loaders and type strings for (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 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(); if (mMon) { nsAutoMonitor::DestroyMonitor(mMon); } PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: Destroyed.")); } NS_IMPL_THREADSAFE_ISUPPORTS8(nsComponentManagerImpl, nsIComponentManager, nsIServiceManager, nsISupportsWeakReference, nsIInterfaceRequestor, nsIComponentRegistrar, nsIServiceManagerObsolete, nsIComponentManagerObsolete, nsIComponentLoaderManager) nsresult nsComponentManagerImpl::GetInterface(const nsIID & uuid, void **result) { if (uuid.Equals(NS_GET_IID(nsINativeComponentLoader))) { if (!mNativeComponentLoader) return NS_ERROR_NOT_INITIALIZED; return mNativeComponentLoader->QueryInterface(uuid, result); } NS_WARNING("This isn't supported"); // fall through to QI as anything QIable is a superset of what can be // got via the GetInterface() return QueryInterface(uuid, result); } //////////////////////////////////////////////////////////////////////////////// // nsComponentManagerImpl: Platform methods //////////////////////////////////////////////////////////////////////////////// #define PERSISTENT_REGISTRY_VERSION_MINOR 5 #define PERSISTENT_REGISTRY_VERSION_MAJOR 0 AutoRegEntry::AutoRegEntry(const nsACString& name, PRInt64* modDate) : mName(ToNewCString(name)), mNameLen(name.Length()), mData(nsnull), mModDate(*modDate) { } AutoRegEntry::~AutoRegEntry() { if (mName) PL_strfree(mName); if (mData) PL_strfree(mData); } PRBool AutoRegEntry::Modified(PRInt64 *date) { return !LL_EQ(*date, mModDate); } void AutoRegEntry::SetOptionalData(const char* data) { if (mData) PL_strfree(mData); if (!data) { mData = nsnull; return; } mData = PL_strdup(data); } static PRBool ReadSectionHeader(nsManifestLineReader& reader, const char *token) { while (1) { if (*reader.LinePtr() == '[') { char* p = reader.LinePtr() + (reader.LineLength() - 1); if (*p != ']') break; *p = 0; char* values[1]; int lengths[1]; if (2 != reader.ParseLine(values, lengths, 1)) break; // ignore the leading '[' if (0 != PL_strcmp(values[0]+1, token)) break; return PR_TRUE; } if (!reader.NextLine()) break; } return PR_FALSE; } nsresult nsComponentManagerImpl::ReadPersistentRegistry() { // populate Category Manager. need to get this early so that we don't get // skipped by 'goto out' nsresult rv = GetService(kCategoryManagerCID, NS_GET_IID(nsICategoryManager), getter_AddRefs(mCategoryManager)); if (NS_FAILED(rv)) return rv; nsAutoMonitor mon(mMon); nsManifestLineReader reader; if (!mComponentsDir) return NS_ERROR_NOT_INITIALIZED; // this should have been set by Init(). PRFileDesc* fd = nsnull; // Set From Init if (!mRegistryFile) { return NS_ERROR_FILE_NOT_FOUND; } nsCOMPtr file; mRegistryFile->Clone(getter_AddRefs(file)); if (!file) return NS_ERROR_OUT_OF_MEMORY; nsCOMPtr localFile(do_QueryInterface(file)); rv = localFile->OpenNSPRFileDesc(PR_RDONLY, 0444, &fd); if (NS_FAILED(rv)) return rv; PRInt64 fileSize; rv = localFile->GetFileSize(&fileSize); if (NS_FAILED(rv)) { PR_Close(fd); return rv; } PRInt32 flen = nsInt64(fileSize); if (flen == 0) { PR_Close(fd); NS_WARNING("Persistent Registry Empty!"); return NS_OK; // ERROR CONDITION } char* registry = new char[flen+1]; if (!registry) goto out; if (flen > PR_Read(fd, registry, flen)) { rv = NS_ERROR_FAILURE; goto out; } registry[flen] = '\0'; reader.Init(registry, flen); if (ReadSectionHeader(reader, "HEADER")) goto out; if (!reader.NextLine()) goto out; char* values[6]; int lengths[6]; // VersionLiteral,major,minor if (3 != reader.ParseLine(values, lengths, 3)) goto out; // VersionLiteral if (!nsDependentCString(values[0], lengths[0]).Equals(NS_LITERAL_CSTRING("Version"))) goto out; // major if (PERSISTENT_REGISTRY_VERSION_MAJOR != atoi(values[1])) goto out; // minor if (PERSISTENT_REGISTRY_VERSION_MINOR != atoi(values[2])) goto out; if (ReadSectionHeader(reader, "COMPONENTS")) goto out; while (1) { if (!reader.NextLine()) break; //name,last_modification_date[,optionaldata] int parts = reader.ParseLine(values, lengths, 3); if (2 > parts) break; PRInt64 a = nsCRT::atoll(values[1]); AutoRegEntry *entry = new AutoRegEntry(nsDependentCString(values[0], lengths[0]), &a); if (!entry) return NS_ERROR_OUT_OF_MEMORY; if (parts == 3) entry->SetOptionalData(values[2]); nsCStringKey key((const char*)values[0]); mAutoRegEntries.Put(&key, entry); } if (ReadSectionHeader(reader, "CLASSIDS")) goto out; while (1) { if (!reader.NextLine()) break; // cid,contract_id,type,class_name,inproc_server if (5 != reader.ParseLine(values, lengths, 5)) break; nsCID aClass; if (!aClass.Parse(values[0])) continue; int loadertype = GetLoaderType(values[2]); if (loadertype < 0) { loadertype = AddLoaderType(values[2]); } void *mem; PL_ARENA_ALLOCATE(mem, &mArena, sizeof(nsFactoryEntry)); if (!mem) return NS_ERROR_OUT_OF_MEMORY; nsFactoryEntry *entry = new (mem) nsFactoryEntry(aClass, values[4], lengths[4], loadertype); nsFactoryTableEntry* factoryTableEntry = NS_STATIC_CAST(nsFactoryTableEntry*, PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_ADD)); if (!factoryTableEntry) return NS_ERROR_OUT_OF_MEMORY; factoryTableEntry->mFactoryEntry = entry; } if (ReadSectionHeader(reader, "CONTRACTIDS")) goto out; while (1) { if (!reader.NextLine()) break; //contractID,cid if (2 != reader.ParseLine(values, lengths, 2)) break; nsCID aClass; if (!aClass.Parse(values[1])) continue; //need to find the location for this cid. nsFactoryEntry *cidEntry = GetFactoryEntry(aClass); if (!cidEntry || cidEntry->typeIndex < 0) continue; //what should we really do? nsContractIDTableEntry* contractIDTableEntry = NS_STATIC_CAST(nsContractIDTableEntry*, PL_DHashTableOperate(&mContractIDs, values[0], PL_DHASH_ADD)); if (!contractIDTableEntry) { continue; } if (!contractIDTableEntry->mContractID) { contractIDTableEntry->mContractID = ArenaStrndup(values[0], lengths[0], &mArena); contractIDTableEntry->mContractIDLen = lengths[0]; } contractIDTableEntry->mFactoryEntry = cidEntry; } if (ReadSectionHeader(reader, "CATEGORIES")) goto out; while (1) { if (!reader.NextLine()) break; //type,name,value if (3 != reader.ParseLine(values, lengths, 3)) break; mCategoryManager->AddCategoryEntry(values[0], values[1], values[2], PR_TRUE, PR_TRUE, 0); } mRegistryDirty = PR_FALSE; out: if (fd) PR_Close(fd); if (registry) delete [] registry; return rv; } struct PersistentWriterArgs { PRFileDesc *mFD; nsLoaderdata *mLoaderData; }; PR_STATIC_CALLBACK(PLDHashOperator) ContractIDWriter(PLDHashTable *table, PLDHashEntryHdr *hdr, PRUint32 number, void *arg) { char *contractID = ((nsContractIDTableEntry*)hdr)->mContractID; nsFactoryEntry *factoryEntry = ((nsContractIDTableEntry*)hdr)->mFactoryEntry; if (factoryEntry == kNonExistentContractID || factoryEntry->typeIndex < 0) return PL_DHASH_NEXT; PRFileDesc* fd = ((PersistentWriterArgs*)arg)->mFD; char cidString[UID_STRING_LENGTH]; GetIDString(factoryEntry->cid, cidString); PR_fprintf(fd, "%s,%s\n", contractID, cidString); // what if this fails? return PL_DHASH_NEXT; } PR_STATIC_CALLBACK(PLDHashOperator) ClassIDWriter(PLDHashTable *table, PLDHashEntryHdr *hdr, PRUint32 number, void *arg) { nsFactoryEntry *factoryEntry = ((nsFactoryTableEntry*)hdr)->mFactoryEntry; PRFileDesc* fd = ((PersistentWriterArgs*)arg)->mFD; nsLoaderdata *loaderData = ((PersistentWriterArgs*)arg)->mLoaderData; if (factoryEntry->typeIndex < 0) return PL_DHASH_NEXT; char cidString[UID_STRING_LENGTH]; GetIDString(factoryEntry->cid, cidString); char *contractID = nsnull, *className = nsnull; nsCOMPtr classInfo = do_QueryInterface(factoryEntry->factory); if (classInfo) { classInfo->GetContractID(&contractID); classInfo->GetClassDescription(&className); } const char * loaderName = nsnull; if (factoryEntry->typeIndex) loaderName = loaderData[factoryEntry->typeIndex].type; char* location = factoryEntry->location; // cid,contract_id,type,class_name,inproc_server PR_fprintf(fd, "%s,%s,%s,%s,%s\n", cidString, (contractID ? contractID : ""), (loaderName ? loaderName : ""), (className ? className : ""), (location ? location : "")); if (contractID) PR_Free(contractID); if (className) PR_Free(className); return PL_DHASH_NEXT; } PRIntn PR_CALLBACK AutoRegEntryWriter(nsHashKey *aKey, void *aData, void* aClosure) { PRFileDesc* fd = (PRFileDesc*) aClosure; AutoRegEntry* entry = (AutoRegEntry*) aData; const char* extraData = entry->GetOptionalData(); const char *fmt; if (extraData) fmt = "%s,%lld,%s\n"; else fmt = "%s,%lld\n"; PR_fprintf(fd, fmt, entry->GetName().get(), entry->GetDate(), extraData); return PR_TRUE; } nsresult nsComponentManagerImpl::WriteCategoryManagerToRegistry(PRFileDesc* fd) { nsCOMPtr catMan; nsCOMPtr outerEnum; nsCOMPtr innerEnum; nsCOMPtr supports; nsCOMPtr supStr; if (!mCategoryManager) { NS_WARNING("Could not access category manager. Will not be able to save categories!"); return NS_ERROR_UNEXPECTED; } nsresult rv = mCategoryManager->EnumerateCategories(getter_AddRefs(outerEnum)); if (NS_FAILED(rv)) return rv; PRBool hasMore; while (NS_SUCCEEDED(outerEnum->HasMoreElements(&hasMore)) && hasMore) { if (NS_FAILED(outerEnum->GetNext(getter_AddRefs(supports)))) continue; supStr = do_QueryInterface(supports); if (!supStr) continue; nsCAutoString categoryType; if (NS_FAILED(supStr->GetData(categoryType))) continue; rv = mCategoryManager->EnumerateCategory(categoryType.get(), getter_AddRefs(innerEnum)); if (NS_FAILED(rv)) continue; PRBool hasMore2; while (NS_SUCCEEDED(innerEnum->HasMoreElements(&hasMore2)) && hasMore2) { if (NS_FAILED(innerEnum->GetNext(getter_AddRefs(supports)))) continue; supStr = do_QueryInterface(supports); if (!supStr) continue; nsCAutoString category; if (NS_FAILED(supStr->GetData(category))) continue; nsXPIDLCString value; rv = mCategoryManager->GetCategoryEntry(categoryType.get(), category.get(), getter_Copies(value)); if (NS_FAILED(rv)) continue; // categoryType, categoryName, value PR_fprintf(fd, "%s,%s,%s\n", categoryType.get(), category.get(), value.get()); } } return NS_OK; } nsresult nsComponentManagerImpl::WritePersistentRegistry() { if (!mRegistryFile) return NS_ERROR_FAILURE; // this should have been set by Init(). nsCOMPtr file; mRegistryFile->Clone(getter_AddRefs(file)); if (!file) return NS_ERROR_OUT_OF_MEMORY; nsCOMPtr localFile(do_QueryInterface(file)); nsCAutoString originalLeafName; localFile->GetNativeLeafName(originalLeafName); nsCAutoString leafName; leafName.Assign(originalLeafName + NS_LITERAL_CSTRING(".tmp")); localFile->SetNativeLeafName(leafName); PRFileDesc* fd = nsnull; nsresult rv = localFile->OpenNSPRFileDesc(PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE, 0666, &fd); if (NS_FAILED(rv)) return rv; if (!PR_fprintf(fd, "Generated File. Do not edit.\n")) goto out; if (!PR_fprintf(fd, "\n[HEADER]\nVersion,%d,%d\n", PERSISTENT_REGISTRY_VERSION_MAJOR, PERSISTENT_REGISTRY_VERSION_MINOR)) goto out; if (!PR_fprintf(fd, "\n[COMPONENTS]\n")) goto out; mAutoRegEntries.Enumerate(AutoRegEntryWriter, (void*)fd); PersistentWriterArgs args; args.mFD = fd; args.mLoaderData = mLoaderData; if (!PR_fprintf(fd, "\n[CLASSIDS]\n")) goto out; PL_DHashTableEnumerate(&mFactories, ClassIDWriter, (void*)&args); if (!PR_fprintf(fd, "\n[CONTRACTIDS]\n")) goto out; PL_DHashTableEnumerate(&mContractIDs, ContractIDWriter, (void*)&args); if (!PR_fprintf(fd, "\n[CATEGORIES]\n")) goto out; // slow slow slow slow.... rv = WriteCategoryManagerToRegistry(fd); out: if (fd) PR_Close(fd); // don't create the file is there was a problem???? if (NS_FAILED(rv)) return rv; if (!mRegistryFile) return NS_ERROR_NOT_INITIALIZED; PRBool exists; if(NS_FAILED(mRegistryFile->Exists(&exists))) return PR_FALSE; if(exists && NS_FAILED(mRegistryFile->Remove(PR_FALSE))) return PR_FALSE; nsCOMPtr parent; mRegistryFile->GetParent(getter_AddRefs(parent)); rv = localFile->MoveToNative(parent, originalLeafName); mRegistryDirty = PR_FALSE; return rv; } //////////////////////////////////////////////////////////////////////////////// // Hash Functions //////////////////////////////////////////////////////////////////////////////// nsresult nsComponentManagerImpl::HashContractID(const char *aContractID, PRUint32 aContractIDLen, const nsCID &aClass, nsFactoryEntry **pfe) { nsIDKey cidKey(aClass); return HashContractID(aContractID, aContractIDLen, aClass, cidKey, pfe); } nsresult nsComponentManagerImpl::HashContractID(const char *aContractID, PRUint32 aContractIDLen, const nsCID &aClass, nsIDKey &cidKey, nsFactoryEntry **pfe) { if(!aContractID || !aContractIDLen) { 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, aContractIDLen, 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, PRUint32 aContractIDLen, nsFactoryEntry *fe) { if(!aContractID || !aContractIDLen) 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; NS_ASSERTION(!contractIDTableEntry->mContractID || !strcmp(contractIDTableEntry->mContractID, aContractID), "contractid conflict"); if (!contractIDTableEntry->mContractID) { contractIDTableEntry->mContractID = ArenaStrndup(aContractID, aContractIDLen, &mArena); contractIDTableEntry->mContractIDLen = aContractIDLen; } 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 = nsnull; 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, PRUint32 aContractIDLen) { 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 // 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, aContractIDLen, fe); } return fe; } nsFactoryEntry * nsComponentManagerImpl::GetFactoryEntry(const nsCID &aClass) { nsIDKey cidKey(aClass); return GetFactoryEntry(aClass, cidKey); } nsFactoryEntry * nsComponentManagerImpl::GetFactoryEntry(const nsCID &aClass, nsIDKey &cidKey) { 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 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 != nsnull); nsFactoryEntry *entry = GetFactoryEntry(aClass); if (!entry) return NS_ERROR_FACTORY_NOT_REGISTERED; return entry->GetFactory(aFactory, this); } nsresult nsComponentManagerImpl::FindFactory(const char *contractID, PRUint32 aContractIDLen, nsIFactory **aFactory) { PR_ASSERT(aFactory != nsnull); nsFactoryEntry *entry = GetFactoryEntry(contractID, aContractIDLen); 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); if (buf) PR_Free(buf); } PR_ASSERT(aResult != nsnull); 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 != nsnull); rv = FindFactory(contractID, strlen(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 != nsnull, "null ptr"); if (!aContractID) return NS_ERROR_NULL_POINTER; NS_PRECONDITION(aClass != nsnull, "null ptr"); if (!aClass) return NS_ERROR_NULL_POINTER; nsresult rv = NS_ERROR_FACTORY_NOT_REGISTERED; nsFactoryEntry *fe = GetFactoryEntry(aContractID, strlen(aContractID)); if (fe && fe != kNonExistentContractID) { *aClass = fe->cid; rv = NS_OK; } if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_ALWAYS)) { char *buf = 0; if (NS_SUCCEEDED(rv)) buf = aClass->ToString(); PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: ContractIDToClassID(%s)->%s", aContractID, NS_SUCCEEDED(rv) ? buf : "[FAILED]")); if (buf) PR_Free(buf); } return rv; } /** * 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) { NS_WARNING("Need to implement CLSIDToContractID"); nsresult rv = NS_ERROR_FACTORY_NOT_REGISTERED; 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(rv) ? *aContractID : "[FAILED]")); if (buf) PR_Free(buf); } return rv; } #ifdef XPCOM_CHECK_PENDING_CIDS nsresult nsComponentManagerImpl::AddPendingCID(const nsCID &aClass) { nsAutoMonitor mon(mMon); int max = mPendingCIDs.Count(); for (int index = 0; index < max; index++) { nsCID *cidp = (nsCID*) mPendingCIDs.ElementAt(index); NS_ASSERTION(cidp, "Bad CID in pending list"); if (cidp->Equals(aClass)) { NS_WARNING("Creation in progress (Reentrant CI - see bug 194568)"); return NS_ERROR_NOT_AVAILABLE; } } mPendingCIDs.AppendElement((void*)&aClass); return NS_OK; } void nsComponentManagerImpl::RemovePendingCID(const nsCID &aClass) { nsAutoMonitor mon(mMon); mPendingCIDs.RemoveElement((void*)&aClass); } #endif /** * 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()); fprintf(stderr, "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 == nsnull) { return NS_ERROR_NULL_POINTER; } *aResult = nsnull; nsFactoryEntry *entry = GetFactoryEntry(aClass); if (!entry || entry == kNonExistentContractID) return NS_ERROR_FACTORY_NOT_REGISTERED; #ifdef SHOW_CI_ON_EXISTING_SERVICE NS_WARN_IF_FALSE(!entry->mServiceObject, "You are calling CreateInstance when a service for this CID already exists!"); #endif nsIFactory *factory = nsnull; nsresult rv = entry->GetFactory(&factory, this); if (NS_SUCCEEDED(rv)) { #ifdef XPCOM_CHECK_PENDING_CIDS rv = AddPendingCID(aClass); if (NS_FAILED(rv)) return rv; #endif rv = factory->CreateInstance(aDelegate, aIID, aResult); NS_RELEASE(factory); #ifdef XPCOM_CHECK_PENDING_CIDS RemovePendingCID(aClass); #endif } else { // Translate error values rv = 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(rv) ? "succeeded" : "FAILED")); if (buf) PR_Free(buf); } return rv; } /** * 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()); fprintf(stderr, "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 == nsnull) { return NS_ERROR_NULL_POINTER; } *aResult = nsnull; nsFactoryEntry *entry = GetFactoryEntry(aContractID, strlen(aContractID)); if (!entry || entry == kNonExistentContractID) return NS_ERROR_FACTORY_NOT_REGISTERED; #ifdef SHOW_CI_ON_EXISTING_SERVICE NS_WARN_IF_FALSE(!entry->mServiceObject, "You are calling CreateInstance when a service for this CID already exist!"); #endif nsIFactory *factory = nsnull; nsresult rv = entry->GetFactory(&factory, this); if (NS_SUCCEEDED(rv)) { #ifdef XPCOM_CHECK_PENDING_CIDS rv = AddPendingCID(entry->cid); if (NS_FAILED(rv)) return rv; #endif rv = factory->CreateInstance(aDelegate, aIID, aResult); NS_RELEASE(factory); #ifdef XPCOM_CHECK_PENDING_CIDS RemovePendingCID(entry->cid); #endif } else { // Translate error values rv = NS_ERROR_FACTORY_NOT_REGISTERED; } PR_LOG(nsComponentManagerLog, PR_LOG_ALWAYS, ("nsComponentManager: CreateInstanceByContractID(%s) %s", aContractID, NS_SUCCEEDED(rv) ? "succeeded" : "FAILED")); return rv; } // 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) { // 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()); fprintf(stderr, "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; } nsAutoMonitor mon(mMon); 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, nsnull, 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); if (!entry) { // XXXdougt - should we require that all services register factories?? probably not. void *mem; PL_ARENA_ALLOCATE(mem, &mArena, sizeof(nsFactoryEntry)); if (!mem) return NS_ERROR_OUT_OF_MEMORY; entry = new (mem) nsFactoryEntry(aClass, nsnull); 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 PRUint32 contractIDLen = strlen(aContractID); nsFactoryEntry *entry = GetFactoryEntry(aContractID, contractIDLen); if (entry == kNonExistentContractID) entry = nsnull; if (!entry) { // XXXdougt - should we require that all services register factories?? probably not. void *mem; PL_ARENA_ALLOCATE(mem, &mArena, sizeof(nsFactoryEntry)); if (!mem) return NS_ERROR_OUT_OF_MEMORY; entry = new (mem) nsFactoryEntry(kEmptyCID, nsnull); 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 = ArenaStrndup(aContractID, contractIDLen, &mArena); contractIDTableEntry->mContractIDLen = contractIDLen; } 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()); fprintf(stderr, "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()); fprintf(stderr, "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) { // 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()); fprintf(stderr, "Getting service on shutdown. Denied.\n" " ContractID: %s\n IID: %s\n", aContractID, iid.get()); #endif /* SHOW_DENIED_ON_SHUTDOWN */ return NS_ERROR_UNEXPECTED; } nsAutoMonitor mon(mMon); 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, nsnull, 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 = strlen(prefix); PRUint32 registryNameLen = 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); 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::RegistryLocationForSpec(nsIFile *aSpec, char **aRegistryName) { nsresult rv; if (!mComponentsDir) return NS_ERROR_NOT_INITIALIZED; if (!aSpec) { *aRegistryName = PL_strdup(""); return NS_OK; } // First check to see if this component is in the application // components directory PRBool containedIn; mComponentsDir->Contains(aSpec, PR_TRUE, &containedIn); nsCAutoString nativePathString; if (containedIn){ rv = aSpec->GetNativePath(nativePathString); if (NS_FAILED(rv)) return rv; const char* relativeLocation = nativePathString.get() + mComponentsOffset + 1; return MakeRegistryName(relativeLocation, XPCOM_RELCOMPONENT_PREFIX, aRegistryName); } // Next check to see if this component is in the GRE // components directory mGREComponentsDir->Contains(aSpec, PR_TRUE, &containedIn); if (containedIn){ rv = aSpec->GetNativePath(nativePathString); if (NS_FAILED(rv)) return rv; const char* relativeLocation = nativePathString.get() + mGREComponentsOffset + 1; return MakeRegistryName(relativeLocation, XPCOM_GRECOMPONENT_PREFIX, aRegistryName); } /* absolute names include volume info on Mac, so persistent descriptor */ rv = aSpec->GetNativePath(nativePathString); if (NS_FAILED(rv)) return rv; return MakeRegistryName(nativePathString.get(), XPCOM_ABSCOMPONENT_PREFIX, aRegistryName); } nsresult nsComponentManagerImpl::SpecForRegistryLocation(const char *aLocation, nsIFile **aSpec) { // i18n: assuming aLocation is encoded for the current locale nsresult rv; if (!aLocation || !aSpec) return NS_ERROR_NULL_POINTER; /* abs:/full/path/to/libcomponent.so */ if (!strncmp(aLocation, XPCOM_ABSCOMPONENT_PREFIX, 4)) { nsLocalFile* file = new nsLocalFile; if (!file) return NS_ERROR_FAILURE; rv = file->InitWithNativePath(nsDependentCString((char *)aLocation + 4)); file->QueryInterface(NS_GET_IID(nsILocalFile), (void**)aSpec); return rv; } if (!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->AppendRelativeNativePath(nsDependentCString(aLocation + 4)); *aSpec = file; return rv; } if (!strncmp(aLocation, XPCOM_GRECOMPONENT_PREFIX, 4)) { if (!mGREComponentsDir) return NS_ERROR_NOT_INITIALIZED; nsILocalFile* file = nsnull; rv = mGREComponentsDir->Clone((nsIFile**)&file); if (NS_FAILED(rv)) return rv; rv = file->AppendRelativeNativePath(nsDependentCString(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); 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)"))); if (buf) PR_Free(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 { void *mem; PL_ARENA_ALLOCATE(mem, &mArena, sizeof(nsFactoryEntry)); if (!mem) return NS_ERROR_OUT_OF_MEMORY; entry = new (mem) nsFactoryEntry(aClass, aFactory); 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, strlen(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, aContractID ? strlen(aContractID) : 0, aPersistentDescriptor, aPersistentDescriptor ? strlen(aPersistentDescriptor) : 0, 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, aContractID ? strlen(aContractID) : 0, aLocation, aLocation ? strlen(aLocation) : 0, 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; } nsresult nsComponentManagerImpl::RegisterComponentLib(const nsCID &aClass, const char *aClassName, const char *aContractID, const char *aDllName, PRBool aReplace, PRBool aPersist) { // deprecated and obsolete. return NS_ERROR_NOT_IMPLEMENTED; } /* * 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, PRUint32 aContractIDLen, const char *aRegistryName, PRUint32 aRegistryNameLen, PRBool aReplace, PRBool aPersist, const char *aType) { nsIDKey key(aClass); nsAutoMonitor mon(mMon); nsFactoryEntry *entry = GetFactoryEntry(aClass); // Normalize proid and classname const char *contractID = (aContractID && *aContractID) ? aContractID : nsnull; const char *className = (aClassName && *aClassName) ? aClassName : nsnull; 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)); if (buf) PR_Free(buf); } if (entry && !aReplace) { PR_LOG(nsComponentManagerLog, PR_LOG_ERROR, ("\t\tFactory already registered.")); return NS_ERROR_FACTORY_EXISTS; } int typeIndex = GetLoaderType(aType); nsCOMPtr loader; nsresult 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 { // Arena allocate the nsFactoryEntry void *mem; PL_ARENA_ALLOCATE(mem, &mArena, sizeof(nsFactoryEntry)); if (!mem) return NS_ERROR_OUT_OF_MEMORY; mRegistryDirty = PR_TRUE; entry = new (mem) nsFactoryEntry(aClass, aRegistryName, aRegistryNameLen, 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) { rv = HashContractID(contractID, aContractIDLen, entry); if (NS_FAILED(rv)) { PR_LOG(nsComponentManagerLog, PR_LOG_ERROR, ("\t\tHashContractID(%s) FAILED\n", contractID)); return rv; } } 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, nsnull); 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; } 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)); if (buf) PR_Free(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 rv = NS_ERROR_FACTORY_NOT_REGISTERED; old = GetFactoryEntry(aClass, key); if (old && (old->factory.get() == aFactory)) { nsAutoMonitor mon(mMon); PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_REMOVE); rv = NS_OK; } PR_LOG(nsComponentManagerLog, PR_LOG_WARNING, ("\t\tUnregisterFactory() %s", NS_SUCCEEDED(rv) ? "succeeded" : "FAILED")); return rv; } 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)); if (buf) PR_Free(buf); } NS_ENSURE_ARG_POINTER(registryName); 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); if (old && old->location && !PL_strcasecmp(old->location, registryName)) { nsAutoMonitor mon(mMon); PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_REMOVE); } PR_LOG(nsComponentManagerLog, PR_LOG_WARNING, ("nsComponentManager: Factory unregister(%s) succeeded.", registryName)); return NS_OK; } 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) { return AutoRegisterImpl(when, inDirSpec); } 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; } else { mComponentsDir->Clone(getter_AddRefs(dir)); if (!dir) return NS_ERROR_NOT_INITIALIZED; } 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; if (!mCategoryManager) { NS_WARNING("mCategoryManager is null"); return NS_ERROR_UNEXPECTED; } nsCOMPtr loaderEnum; rv = mCategoryManager->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; nsCAutoString loaderType; if (NS_FAILED(supStr->GetData(loaderType))) continue; // We depend on the loader being created. Add the loader type and // create the loader object too. nsCOMPtr loader; GetLoaderForType(AddLoaderType(loaderType.get()), getter_AddRefs(loader)); } rv = AutoRegisterNonNativeComponents(dir.get()); // Notify observers of xpcom autoregistration completion NS_CreateServicesFromCategory(NS_XPCOM_AUTOREGISTRATION_OBSERVER_ID, nsnull, "end"); if (mRegistryDirty) FlushPersistentStore(PR_TRUE); return rv; } nsresult nsComponentManagerImpl::AutoRegisterNonNativeComponents(nsIFile* spec) { nsresult rv = NS_OK; nsCOMPtr directory = spec; if (!directory) { mComponentsDir->Clone(getter_AddRefs(directory)); if (!directory) return NS_ERROR_NOT_INITIALIZED; } for (int i = 1; i < mNLoaderData; i++) { if (!mLoaderData[i].loader) { rv = GetLoaderForType(i, &mLoaderData[i].loader); if (NS_FAILED(rv)) continue; } rv = mLoaderData[i].loader->AutoRegisterComponents(0, directory); if (NS_FAILED(rv)) break; } if (NS_SUCCEEDED(rv)) { PRBool registered; do { registered = PR_FALSE; for (int i = 0; i < mNLoaderData; i++) { PRBool b = PR_FALSE; if (mLoaderData[i].loader) { rv = mLoaderData[i].loader->RegisterDeferredComponents(0, &b); if (NS_FAILED(rv)) continue; registered |= b; } } } while (NS_SUCCEEDED(rv) && registered); } 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) { nsCOMPtr loader; rv = GetLoaderForType(i, getter_AddRefs(loader)); if (NS_FAILED(rv)) continue; // |GetLoaderForType| has filled in |mLoaderData[i].loader|: NS_ASSERTION(loader == mLoaderData[i].loader, "oops"); } 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; PLDHashTableEnumeratorImpl *aEnum; rv = PL_NewDHashTableEnumerator(&mFactories, ConvertFactoryEntryToCID, (void*)this, &aEnum); if (NS_FAILED(rv)) return rv; *aEnumerator = NS_STATIC_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; PLDHashTableEnumeratorImpl *aEnum; rv = PL_NewDHashTableEnumerator(&mContractIDs, ConvertContractIDKeyToString, (void*)this, &aEnum); if (NS_FAILED(rv)) return rv; *aEnumerator = NS_STATIC_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, strlen(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; PLDHashTableEnumeratorImpl *aEnum; rv = PL_NewDHashTableEnumerator(&mFactories, ConvertFactoryEntryToCID, (void*)this, &aEnum); if (NS_FAILED(rv)) return rv; *aEnumerator = NS_STATIC_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; PLDHashTableEnumeratorImpl *aEnum; rv = PL_NewDHashTableEnumerator(&mContractIDs, ConvertContractIDKeyToString, (void*)this, &aEnum); if (NS_FAILED(rv)) return rv; *aEnumerator = NS_STATIC_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) { *_retval = (nsCID*) nsMemory::Alloc(sizeof(nsCID)); if (!*_retval) return NS_ERROR_OUT_OF_MEMORY; nsresult rv = ContractIDToClassID(aContractID, *_retval); if (NS_FAILED(rv)) { nsMemory::Free(*_retval); *_retval = nsnull; } return rv; } // end nsIComponentRegistrar NS_IMETHODIMP nsComponentManagerImpl::HasFileChanged(nsIFile *file, const char *loaderString, PRInt64 modDate, PRBool *_retval) { *_retval = PR_TRUE; nsXPIDLCString registryName; nsresult rv = RegistryLocationForSpec(file, getter_Copies(registryName)); if (NS_FAILED(rv)) return rv; nsCStringKey key(registryName); AutoRegEntry* entry = (AutoRegEntry*)mAutoRegEntries.Get(&key); if (entry) *_retval = entry->Modified(&modDate); else *_retval = PR_TRUE; return NS_OK; } NS_IMETHODIMP nsComponentManagerImpl::SaveFileInfo(nsIFile *file, const char *loaderString, PRInt64 modDate) { mRegistryDirty = PR_TRUE; nsXPIDLCString registryName; nsresult rv = RegistryLocationForSpec(file, getter_Copies(registryName)); if (NS_FAILED(rv)) return rv; // check to see if exists in the array before adding it so that we don't have dups. nsCStringKey key(registryName); AutoRegEntry* entry = (AutoRegEntry*)mAutoRegEntries.Get(&key); if (entry) { entry->SetDate(&modDate); return NS_OK; } entry = new AutoRegEntry(registryName, &modDate); if (!entry) return NS_ERROR_OUT_OF_MEMORY; mAutoRegEntries.Put(&key, entry); return NS_OK; } NS_IMETHODIMP nsComponentManagerImpl::RemoveFileInfo(nsIFile *file, const char *loaderString) { mRegistryDirty = PR_TRUE; nsXPIDLCString registryName; nsresult rv = RegistryLocationForSpec(file, getter_Copies(registryName)); if (NS_FAILED(rv)) return rv; nsCStringKey key(registryName); AutoRegEntry* entry = (AutoRegEntry*)mAutoRegEntries.Remove(&key); if (entry) delete entry; return NS_OK; } NS_IMETHODIMP nsComponentManagerImpl::GetOptionalData(nsIFile *file, const char *loaderString, char **_retval) { nsXPIDLCString registryName; nsresult rv = RegistryLocationForSpec(file, getter_Copies(registryName)); if (NS_FAILED(rv)) return rv; nsCStringKey key(registryName); AutoRegEntry* entry = (AutoRegEntry*)mAutoRegEntries.Get(&key); if (!entry) { return NS_ERROR_NOT_INITIALIZED; } const char* opData = entry->GetOptionalData(); if (opData) *_retval = ToNewCString(nsDependentCString(opData)); else *_retval = nsnull; return NS_OK; } NS_IMETHODIMP nsComponentManagerImpl::SetOptionalData(nsIFile *file, const char *loaderString, const char *data) { nsXPIDLCString registryName; nsresult rv = RegistryLocationForSpec(file, getter_Copies(registryName)); if (NS_FAILED(rv)) return rv; nsCStringKey key(registryName); AutoRegEntry* entry = (AutoRegEntry*)mAutoRegEntries.Get(&key); if (!entry) { PRInt64 zero = LL_Zero(); entry = new AutoRegEntry(registryName, &zero); if (!entry) return NS_ERROR_OUT_OF_MEMORY; mAutoRegEntries.Put(&key, entry); } entry->SetOptionalData(data); return NS_OK; } NS_IMETHODIMP nsComponentManagerImpl::FlushPersistentStore(PRBool now) { mRegistryDirty = PR_TRUE; if (now) return WritePersistentRegistry(); return NS_OK; } //////////////////////////////////////////////////////////////////////////////// // 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 == nsnull) { // 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) { if (nsComponentManagerImpl::gComponentManager == nsnull) { // XPCOM needs initialization. nsresult 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 == nsnull) { // 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 == nsnull) { // 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; } // nsIComponentLoaderManager is not frozen, but is defined here // so that I can use it internally in xpcom. nsresult NS_GetComponentLoaderManager(nsIComponentLoaderManager* *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(nsIComponentLoaderManager*, nsComponentManagerImpl::gComponentManager); NS_IF_ADDREF(*result); return NS_OK; }