зеркало из https://github.com/mozilla/pjs.git
3772 строки
112 KiB
C++
3772 строки
112 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK *****
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*
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* This Original Code has been modified by IBM Corporation.
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* Modifications made by IBM described herein are
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* Copyright (c) International Business Machines
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* Corporation, 2000
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*
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* Modifications to Mozilla code or documentation
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* identified per MPL Section 3.3
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*
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* Date Modified by Description of modification
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* 04/20/2000 IBM Corp. Added PR_CALLBACK for Optlink use in OS2
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*/
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#include <stdlib.h>
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#include "nscore.h"
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#include "nsISupports.h"
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#include "nspr.h"
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#include "nsCRT.h" // for atoll
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// Arena used by component manager for storing contractid string, dll
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// location strings and small objects
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// CAUTION: Arena align mask needs to be defined before including plarena.h
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// currently from nsComponentManager.h
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#define PL_ARENA_CONST_ALIGN_MASK 7
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#define NS_CM_BLOCK_SIZE (1024 * 8)
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#include "nsAutoLock.h"
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#include "nsCOMPtr.h"
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#include "nsComponentManager.h"
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#include "nsDirectoryService.h"
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#include "nsDirectoryServiceDefs.h"
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#include "nsCategoryManager.h"
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#include "nsCategoryManagerUtils.h"
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#include "nsIEnumerator.h"
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#include "xptiprivate.h"
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#include "nsIConsoleService.h"
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#include "nsIModule.h"
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#include "nsIObserverService.h"
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#include "nsISimpleEnumerator.h"
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#include "nsIStringEnumerator.h"
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#include "nsXPCOM.h"
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#include "nsXPCOMPrivate.h"
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#include "nsISupportsPrimitives.h"
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#include "nsIClassInfo.h"
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#include "nsLocalFile.h"
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#include "nsReadableUtils.h"
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#include "nsString.h"
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#include "nsXPIDLString.h"
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#include "prcmon.h"
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#include "xptinfo.h" // this after nsISupports, to pick up IID so that xpt stuff doesn't try to define it itself...
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#include "nsThreadUtils.h"
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#include "prthread.h"
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#include "private/pprthred.h"
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#include "nsTArray.h"
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#include "prio.h"
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#include "nsInt64.h"
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#include "nsManifestLineReader.h"
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#include NEW_H // for placement new
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#ifdef XP_BEOS
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#include <FindDirectory.h>
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#include <Path.h>
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#endif
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#include "prlog.h"
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NS_COM PRLogModuleInfo* nsComponentManagerLog = nsnull;
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#if 0 || defined (DEBUG_timeless)
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#define SHOW_DENIED_ON_SHUTDOWN
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#define SHOW_CI_ON_EXISTING_SERVICE
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#endif
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// Bloated registry buffer size to improve startup performance -- needs to
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// be big enough to fit the entire file into memory or it'll thrash.
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// 512K is big enough to allow for some future growth in the registry.
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#define BIG_REGISTRY_BUFLEN (512*1024)
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// Common Key Names
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const char classIDKeyName[]="classID";
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const char classesKeyName[]="contractID";
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const char componentsKeyName[]="components";
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const char xpcomComponentsKeyName[]="software/mozilla/XPCOM/components";
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const char xpcomKeyName[]="software/mozilla/XPCOM";
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// Common Value Names
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const char classIDValueName[]="ClassID";
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const char classNameValueName[]="ClassName";
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const char componentCountValueName[]="ComponentsCount";
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const char componentTypeValueName[]="ComponentType";
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const char contractIDValueName[]="ContractID";
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const char fileSizeValueName[]="FileSize";
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const char inprocServerValueName[]="InprocServer";
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const char lastModValueName[]="LastModTimeStamp";
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const char nativeComponentType[]="application/x-mozilla-native";
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const char staticComponentType[]="application/x-mozilla-static";
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const char versionValueName[]="VersionString";
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const static char XPCOM_ABSCOMPONENT_PREFIX[] = "abs:";
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const static char XPCOM_RELCOMPONENT_PREFIX[] = "rel:";
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const static char XPCOM_GRECOMPONENT_PREFIX[] = "gre:";
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static const char gIDFormat[] =
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"{%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}";
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#define NS_EMPTY_IID \
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{ \
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0x00000000, \
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0x0000, \
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0x0000, \
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{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} \
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}
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NS_DEFINE_CID(kEmptyCID, NS_EMPTY_IID);
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NS_DEFINE_CID(kCategoryManagerCID, NS_CATEGORYMANAGER_CID);
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#define UID_STRING_LENGTH 39
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static void GetIDString(const nsID& aCID, char buf[UID_STRING_LENGTH])
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{
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PR_snprintf(buf, UID_STRING_LENGTH, gIDFormat,
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aCID.m0, (PRUint32) aCID.m1, (PRUint32) aCID.m2,
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(PRUint32) aCID.m3[0], (PRUint32) aCID.m3[1],
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(PRUint32) aCID.m3[2], (PRUint32) aCID.m3[3],
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(PRUint32) aCID.m3[4], (PRUint32) aCID.m3[5],
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(PRUint32) aCID.m3[6], (PRUint32) aCID.m3[7]);
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}
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nsresult
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nsGetServiceFromCategory::operator()(const nsIID& aIID, void** aInstancePtr) const
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{
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nsresult rv;
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nsXPIDLCString value;
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nsCOMPtr<nsICategoryManager> catman;
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nsComponentManagerImpl *compMgr = nsComponentManagerImpl::gComponentManager;
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if (!compMgr) {
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rv = NS_ERROR_NOT_INITIALIZED;
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goto error;
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}
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if (!mCategory || !mEntry) {
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// when categories have defaults, use that for null mEntry
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rv = NS_ERROR_NULL_POINTER;
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goto error;
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}
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rv = compMgr->nsComponentManagerImpl::GetService(kCategoryManagerCID,
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NS_GET_IID(nsICategoryManager),
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getter_AddRefs(catman));
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if (NS_FAILED(rv)) goto error;
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/* find the contractID for category.entry */
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rv = catman->GetCategoryEntry(mCategory, mEntry,
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getter_Copies(value));
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if (NS_FAILED(rv)) goto error;
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if (!value) {
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rv = NS_ERROR_SERVICE_NOT_AVAILABLE;
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goto error;
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}
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rv = compMgr->
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nsComponentManagerImpl::GetServiceByContractID(value,
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aIID, aInstancePtr);
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if (NS_FAILED(rv)) {
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error:
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*aInstancePtr = 0;
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}
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if (mErrorPtr)
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*mErrorPtr = rv;
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return rv;
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}
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////////////////////////////////////////////////////////////////////////////////
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// Arena helper functions
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////////////////////////////////////////////////////////////////////////////////
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char *
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ArenaStrndup(const char *s, PRUint32 len, PLArenaPool *arena)
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{
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void *mem;
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// Include trailing null in the len
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PL_ARENA_ALLOCATE(mem, arena, len+1);
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if (mem)
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memcpy(mem, s, len+1);
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return static_cast<char *>(mem);
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}
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char*
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ArenaStrdup(const char *s, PLArenaPool *arena)
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{
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return ArenaStrndup(s, strlen(s), arena);
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}
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////////////////////////////////////////////////////////////////////////////////
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// Hashtable Callbacks
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////////////////////////////////////////////////////////////////////////////////
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PRBool
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nsFactoryEntry_Destroy(nsHashKey *aKey, void *aData, void* closure);
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static PLDHashNumber
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factory_HashKey(PLDHashTable *aTable, const void *aKey)
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{
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const nsCID *cidp = reinterpret_cast<const nsCID*>(aKey);
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return cidp->m0;
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}
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static PRBool
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factory_MatchEntry(PLDHashTable *aTable, const PLDHashEntryHdr *aHdr,
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const void *aKey)
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{
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const nsFactoryTableEntry* entry =
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static_cast<const nsFactoryTableEntry*>(aHdr);
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const nsCID *cidp = reinterpret_cast<const nsCID*>(aKey);
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return (entry->mFactoryEntry->mCid).Equals(*cidp);
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}
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static void
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factory_ClearEntry(PLDHashTable *aTable, PLDHashEntryHdr *aHdr)
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{
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nsFactoryTableEntry* entry = static_cast<nsFactoryTableEntry*>(aHdr);
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// nsFactoryEntry is arena allocated. So we don't delete it.
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// We call the destructor by hand.
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entry->mFactoryEntry->~nsFactoryEntry();
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PL_DHashClearEntryStub(aTable, aHdr);
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}
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static const PLDHashTableOps factory_DHashTableOps = {
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PL_DHashAllocTable,
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PL_DHashFreeTable,
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factory_HashKey,
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factory_MatchEntry,
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PL_DHashMoveEntryStub,
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factory_ClearEntry,
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PL_DHashFinalizeStub,
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};
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static void
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contractID_ClearEntry(PLDHashTable *aTable, PLDHashEntryHdr *aHdr)
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{
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nsContractIDTableEntry* entry = static_cast<nsContractIDTableEntry*>(aHdr);
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if (entry->mFactoryEntry->mLoaderType == NS_LOADER_TYPE_INVALID &&
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entry->mFactoryEntry->mCid.Equals(kEmptyCID)) {
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// this object is owned by the hash.
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// nsFactoryEntry is arena allocated. So we don't delete it.
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// We call the destructor by hand.
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entry->mFactoryEntry->~nsFactoryEntry();
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}
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// contractIDs are arena allocated. No need to free them.
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PL_DHashClearEntryStub(aTable, aHdr);
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}
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static const PLDHashTableOps contractID_DHashTableOps = {
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PL_DHashAllocTable,
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PL_DHashFreeTable,
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PL_DHashStringKey,
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PL_DHashMatchStringKey,
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PL_DHashMoveEntryStub,
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contractID_ClearEntry,
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PL_DHashFinalizeStub,
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};
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////////////////////////////////////////////////////////////////////////////////
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// Hashtable Enumeration
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////////////////////////////////////////////////////////////////////////////////
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typedef NS_CALLBACK(EnumeratorConverter)(PLDHashTable *table,
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const PLDHashEntryHdr *hdr,
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void *data,
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nsISupports **retval);
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class PLDHashTableEnumeratorImpl : public nsIBidirectionalEnumerator,
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public nsISimpleEnumerator
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIENUMERATOR
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NS_DECL_NSIBIDIRECTIONALENUMERATOR
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NS_DECL_NSISIMPLEENUMERATOR
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PLDHashTableEnumeratorImpl(PLDHashTable *table,
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EnumeratorConverter converter,
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void *converterData);
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PRInt32 Count() { return mCount; }
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private:
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PLDHashTableEnumeratorImpl(); /* no implementation */
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~PLDHashTableEnumeratorImpl();
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void ReleaseElements();
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nsTArray<nsISupports*> mElements;
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PRInt32 mCount, mCurrent;
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PRMonitor* mMonitor;
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struct Closure {
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PRBool succeeded;
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EnumeratorConverter converter;
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void *data;
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PLDHashTableEnumeratorImpl *impl;
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};
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static PLDHashOperator Enumerator(PLDHashTable *table,
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PLDHashEntryHdr *hdr,
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PRUint32 number,
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void *data);
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};
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// static
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PLDHashOperator
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PLDHashTableEnumeratorImpl::Enumerator(PLDHashTable *table,
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PLDHashEntryHdr *hdr,
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PRUint32 number,
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void *data)
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{
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Closure *c = reinterpret_cast<Closure *>(data);
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nsISupports *converted;
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if (NS_FAILED(c->converter(table, hdr, c->data, &converted)) ||
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!c->impl->mElements.AppendElement(converted)) {
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c->succeeded = PR_FALSE;
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return PL_DHASH_STOP;
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}
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c->succeeded = PR_TRUE;
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return PL_DHASH_NEXT;
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}
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PLDHashTableEnumeratorImpl::PLDHashTableEnumeratorImpl(PLDHashTable *table,
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EnumeratorConverter converter,
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void *converterData)
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: mCurrent(0)
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{
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mMonitor = nsAutoMonitor::NewMonitor("PLDHashTableEnumeratorImpl");
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NS_ASSERTION(mMonitor, "NULL Monitor");
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nsAutoMonitor mon(mMonitor);
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Closure c = { PR_FALSE, converter, converterData, this };
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mCount = PL_DHashTableEnumerate(table, Enumerator, &c);
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if (!c.succeeded) {
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ReleaseElements();
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mCount = 0;
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}
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}
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NS_IMPL_ISUPPORTS3(PLDHashTableEnumeratorImpl,
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nsIBidirectionalEnumerator,
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nsIEnumerator,
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nsISimpleEnumerator)
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PLDHashTableEnumeratorImpl::~PLDHashTableEnumeratorImpl()
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{
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ReleaseElements();
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// Destroy the Lock
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if (mMonitor)
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nsAutoMonitor::DestroyMonitor(mMonitor);
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}
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void
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PLDHashTableEnumeratorImpl::ReleaseElements()
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{
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for (PRInt32 i = 0; i < mCount; i++) {
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NS_IF_RELEASE(mElements[i]);
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}
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}
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NS_IMETHODIMP
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PL_NewDHashTableEnumerator(PLDHashTable *table,
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EnumeratorConverter converter,
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void *converterData,
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PLDHashTableEnumeratorImpl **retval)
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{
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PLDHashTableEnumeratorImpl *impl =
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new PLDHashTableEnumeratorImpl(table, converter, converterData);
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if (!impl)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(impl);
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if (impl->Count() == -1) {
|
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// conversion failed
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NS_RELEASE(impl);
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return NS_ERROR_FAILURE;
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}
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*retval = impl;
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return NS_OK;
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}
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NS_IMETHODIMP
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PLDHashTableEnumeratorImpl::First()
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{
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if (!mCount)
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return NS_ERROR_FAILURE;
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mCurrent = 0;
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return NS_OK;
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}
|
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|
NS_IMETHODIMP
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PLDHashTableEnumeratorImpl::Last()
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|
{
|
|
if (!mCount)
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return NS_ERROR_FAILURE;
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mCurrent = mCount - 1;
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return NS_OK;
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}
|
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|
NS_IMETHODIMP
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|
PLDHashTableEnumeratorImpl::Prev()
|
|
{
|
|
if (!mCurrent)
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return NS_ERROR_FAILURE;
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mCurrent--;
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return NS_OK;
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}
|
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|
|
NS_IMETHODIMP
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|
PLDHashTableEnumeratorImpl::Next()
|
|
{
|
|
// If empty or we're past the end, or we are at the end return error
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|
if (!mCount || (mCurrent == mCount) || (++mCurrent == mCount))
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return NS_ERROR_FAILURE;
|
|
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|
return NS_OK;
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}
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|
|
NS_IMETHODIMP
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|
PLDHashTableEnumeratorImpl::CurrentItem(nsISupports **retval)
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|
{
|
|
if (!mCount || mCurrent == mCount)
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|
return NS_ERROR_FAILURE;
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|
|
|
*retval = mElements[mCurrent];
|
|
if (*retval)
|
|
NS_ADDREF(*retval);
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|
return NS_OK;
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}
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|
|
NS_IMETHODIMP
|
|
PLDHashTableEnumeratorImpl::IsDone()
|
|
{
|
|
if (!mCount || (mCurrent == mCount))
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return NS_OK;
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return NS_ENUMERATOR_FALSE;
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}
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|
|
NS_IMETHODIMP
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|
PLDHashTableEnumeratorImpl::HasMoreElements(PRBool *_retval)
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{
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if (!mCount || (mCurrent >= mCount - 1))
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*_retval = PR_FALSE;
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else
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*_retval = PR_TRUE;
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return NS_OK;
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}
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|
|
NS_IMETHODIMP
|
|
PLDHashTableEnumeratorImpl::GetNext(nsISupports **_retval)
|
|
{
|
|
nsresult rv = Next();
|
|
if (NS_FAILED(rv)) return rv;
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return CurrentItem(_retval);
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}
|
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|
|
static NS_IMETHODIMP
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|
ConvertFactoryEntryToCID(PLDHashTable *table,
|
|
const PLDHashEntryHdr *hdr,
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|
void *data, nsISupports **retval)
|
|
{
|
|
nsresult rv;
|
|
nsCOMPtr<nsISupportsID> wrapper;
|
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|
|
nsComponentManagerImpl *cm = static_cast<nsComponentManagerImpl *>(data);
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|
|
rv = cm->CreateInstanceByContractID(NS_SUPPORTS_ID_CONTRACTID, nsnull,
|
|
NS_GET_IID(nsISupportsID), getter_AddRefs(wrapper));
|
|
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
const nsFactoryTableEntry *entry =
|
|
reinterpret_cast<const nsFactoryTableEntry *>(hdr);
|
|
if (entry) {
|
|
nsFactoryEntry *fe = entry->mFactoryEntry;
|
|
|
|
wrapper->SetData(&fe->mCid);
|
|
*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<nsISupportsCString> wrapper;
|
|
|
|
nsComponentManagerImpl *cm = 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 =
|
|
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<nsIProperties> 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),
|
|
mShuttingDown(NS_SHUTDOWN_NEVERHAPPENED),
|
|
mLoaderData(4),
|
|
mRegistryDirty(PR_FALSE)
|
|
{
|
|
mFactories.ops = nsnull;
|
|
mContractIDs.ops = nsnull;
|
|
}
|
|
|
|
#define CONTRACTID_HASHTABLE_INITIAL_SIZE 2048
|
|
#define AUTOREGENTRY_HASHTABLE_INITIAL_SIZE 256
|
|
|
|
nsresult nsComponentManagerImpl::Init(nsStaticModuleInfo const *aStaticModules,
|
|
PRUint32 aStaticModuleCount)
|
|
{
|
|
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),
|
|
CONTRACTID_HASHTABLE_INITIAL_SIZE)) {
|
|
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 (!mAutoRegEntries.Init(AUTOREGENTRY_HASHTABLE_INITIAL_SIZE))
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
if (mMon == nsnull) {
|
|
mMon = nsAutoMonitor::NewMonitor("nsComponentManagerImpl");
|
|
if (mMon == nsnull)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
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_DEBUG,
|
|
("nsComponentManager: Initialized."));
|
|
|
|
rv = mNativeModuleLoader.Init();
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
rv = mStaticModuleLoader.Init(aStaticModules, aStaticModuleCount);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
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_DEBUG, ("nsComponentManager: Beginning Shutdown."));
|
|
|
|
// Write out our component data file.
|
|
if (mRegistryDirty) {
|
|
nsresult rv = WritePersistentRegistry();
|
|
if (NS_FAILED(rv)) {
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_ERROR, ("nsComponentManager: Could not write out persistent registry."));
|
|
#ifdef DEBUG
|
|
printf("Could not write out persistent registry!\n");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
mAutoRegEntries.Clear();
|
|
|
|
// Release all cached factories
|
|
if (mContractIDs.ops) {
|
|
PL_DHashTableFinish(&mContractIDs);
|
|
mContractIDs.ops = nsnull;
|
|
}
|
|
if (mFactories.ops) {
|
|
PL_DHashTableFinish(&mFactories);
|
|
mFactories.ops = nsnull;
|
|
}
|
|
|
|
mLoaderData.Clear();
|
|
|
|
// Free staticm modules
|
|
mStaticModuleLoader.ReleaseModules();
|
|
|
|
// Unload libraries
|
|
mNativeModuleLoader.UnloadLibraries();
|
|
|
|
// delete arena for strings and small objects
|
|
PL_FinishArenaPool(&mArena);
|
|
|
|
mComponentsDir = 0;
|
|
|
|
mCategoryManager = 0;
|
|
|
|
mShuttingDown = NS_SHUTDOWN_COMPLETE;
|
|
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_DEBUG, ("nsComponentManager: Shutdown complete."));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsComponentManagerImpl::~nsComponentManagerImpl()
|
|
{
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_DEBUG, ("nsComponentManager: Beginning destruction."));
|
|
|
|
if (mShuttingDown != NS_SHUTDOWN_COMPLETE)
|
|
Shutdown();
|
|
|
|
if (mMon) {
|
|
nsAutoMonitor::DestroyMonitor(mMon);
|
|
}
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_DEBUG, ("nsComponentManager: Destroyed."));
|
|
}
|
|
|
|
NS_IMPL_THREADSAFE_ISUPPORTS7(nsComponentManagerImpl,
|
|
nsIComponentManager,
|
|
nsIServiceManager,
|
|
nsISupportsWeakReference,
|
|
nsIInterfaceRequestor,
|
|
nsIComponentRegistrar,
|
|
nsIServiceManagerObsolete,
|
|
nsIComponentManagerObsolete)
|
|
|
|
|
|
nsresult
|
|
nsComponentManagerImpl::GetInterface(const nsIID & uuid, void **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
|
|
|
|
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()
|
|
{
|
|
NS_ASSERTION(mComponentsDir, "nsComponentManager not initialized.");
|
|
|
|
nsresult rv;
|
|
|
|
// populate Category Manager. need to get this early so that we don't get
|
|
// skipped by 'goto out'
|
|
mCategoryManager = do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
nsAutoMonitor mon(mMon);
|
|
nsManifestLineReader reader;
|
|
|
|
PRFileDesc* fd = nsnull;
|
|
|
|
// Set From Init
|
|
if (!mRegistryFile) {
|
|
return NS_ERROR_FILE_NOT_FOUND;
|
|
}
|
|
|
|
nsCOMPtr<nsIFile> file;
|
|
mRegistryFile->Clone(getter_AddRefs(file));
|
|
if (!file)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
nsCOMPtr<nsILocalFile> 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]).EqualsLiteral("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]);
|
|
|
|
nsCOMPtr<nsILocalFile> lf;
|
|
rv = FileForRegistryLocation(nsDependentCString(values[0], lengths[0]),
|
|
getter_AddRefs(lf));
|
|
if (NS_FAILED(rv))
|
|
continue;
|
|
|
|
nsCOMPtr<nsIHashable> lfhash(do_QueryInterface(lf));
|
|
if (!lf) {
|
|
NS_ERROR("nsLocalFile does not implement nsIHashable");
|
|
continue;
|
|
}
|
|
|
|
mAutoRegEntries.Put(lfhash, a);
|
|
}
|
|
|
|
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;
|
|
|
|
LoaderType loadertype = AddLoaderType(values[2]);
|
|
if (loadertype == NS_LOADER_TYPE_INVALID) {
|
|
NS_ERROR("Could not create LoaderType");
|
|
continue;
|
|
}
|
|
|
|
void *mem;
|
|
PL_ARENA_ALLOCATE(mem, &mArena, sizeof(nsFactoryEntry));
|
|
if (!mem) {
|
|
rv = NS_ERROR_OUT_OF_MEMORY;
|
|
goto out;
|
|
}
|
|
|
|
nsFactoryEntry *entry =
|
|
new (mem) nsFactoryEntry(aClass, loadertype, values[4]);
|
|
|
|
if (!entry->mLocationKey) {
|
|
rv = NS_ERROR_OUT_OF_MEMORY;
|
|
goto out;
|
|
}
|
|
|
|
nsFactoryTableEntry* factoryTableEntry =
|
|
static_cast<nsFactoryTableEntry*>
|
|
(PL_DHashTableOperate(&mFactories,
|
|
&aClass,
|
|
PL_DHASH_ADD));
|
|
|
|
if (!factoryTableEntry) {
|
|
rv = NS_ERROR_OUT_OF_MEMORY;
|
|
goto out;
|
|
}
|
|
|
|
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->mLoaderType == NS_LOADER_TYPE_INVALID)
|
|
continue; //what should we really do?
|
|
|
|
nsContractIDTableEntry* contractIDTableEntry =
|
|
static_cast<nsContractIDTableEntry*>
|
|
(PL_DHashTableOperate(&mContractIDs,
|
|
values[0],
|
|
PL_DHASH_ADD));
|
|
if (!contractIDTableEntry) {
|
|
continue;
|
|
}
|
|
|
|
if (!contractIDTableEntry->mContractID) {
|
|
char *contractID = ArenaStrndup(values[0], lengths[0], &mArena);
|
|
if (!contractID) {
|
|
rv = NS_ERROR_OUT_OF_MEMORY;
|
|
goto out;
|
|
}
|
|
contractIDTableEntry->mContractID = contractID;
|
|
contractIDTableEntry->mContractIDLen = lengths[0];
|
|
}
|
|
|
|
contractIDTableEntry->mFactoryEntry = cidEntry;
|
|
}
|
|
|
|
if (ReadSectionHeader(reader, "CATEGORIES"))
|
|
goto out;
|
|
|
|
mCategoryManager->SuppressNotifications(PR_TRUE);
|
|
|
|
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);
|
|
}
|
|
|
|
mCategoryManager->SuppressNotifications(PR_FALSE);
|
|
|
|
mRegistryDirty = PR_FALSE;
|
|
out:
|
|
if (fd)
|
|
PR_Close(fd);
|
|
|
|
if (registry)
|
|
delete [] registry;
|
|
|
|
return rv;
|
|
}
|
|
|
|
struct PersistentWriterArgs
|
|
{
|
|
PRFileDesc *mFD;
|
|
nsTArray<nsLoaderdata> *mLoaderData;
|
|
};
|
|
|
|
static PLDHashOperator
|
|
ContractIDWriter(PLDHashTable *table,
|
|
PLDHashEntryHdr *hdr,
|
|
PRUint32 number,
|
|
void *arg)
|
|
{
|
|
char *contractID = ((nsContractIDTableEntry*)hdr)->mContractID;
|
|
nsFactoryEntry *factoryEntry = ((nsContractIDTableEntry*)hdr)->mFactoryEntry;
|
|
|
|
// for now, we only save out the top most parent.
|
|
while (factoryEntry->mParent)
|
|
factoryEntry = factoryEntry->mParent;
|
|
|
|
if (factoryEntry->mLoaderType == NS_LOADER_TYPE_INVALID)
|
|
return PL_DHASH_NEXT;
|
|
|
|
PRFileDesc* fd = ((PersistentWriterArgs*)arg)->mFD;
|
|
|
|
char cidString[UID_STRING_LENGTH];
|
|
GetIDString(factoryEntry->mCid, cidString);
|
|
PR_fprintf(fd, "%s,%s\n", contractID, cidString); // what if this fails?
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
static PLDHashOperator
|
|
ClassIDWriter(PLDHashTable *table,
|
|
PLDHashEntryHdr *hdr,
|
|
PRUint32 number,
|
|
void *arg)
|
|
{
|
|
nsFactoryEntry *factoryEntry = ((nsFactoryTableEntry*)hdr)->mFactoryEntry;
|
|
PRFileDesc* fd = ((PersistentWriterArgs*)arg)->mFD;
|
|
nsTArray<nsLoaderdata> *loaderData = ((PersistentWriterArgs*)arg)->mLoaderData;
|
|
|
|
// for now, we only save out the top most parent.
|
|
while (factoryEntry->mParent)
|
|
factoryEntry = factoryEntry->mParent;
|
|
|
|
if (factoryEntry->mLoaderType == NS_LOADER_TYPE_INVALID) {
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
char cidString[UID_STRING_LENGTH];
|
|
GetIDString(factoryEntry->mCid, cidString);
|
|
|
|
char *contractID = nsnull, *className = nsnull;
|
|
|
|
nsCOMPtr<nsIClassInfo> classInfo = do_QueryInterface(factoryEntry->mFactory);
|
|
if (classInfo)
|
|
{
|
|
classInfo->GetContractID(&contractID);
|
|
classInfo->GetClassDescription(&className);
|
|
}
|
|
|
|
const char *loaderName;
|
|
switch (factoryEntry->mLoaderType) {
|
|
case NS_LOADER_TYPE_STATIC:
|
|
loaderName = staticComponentType;
|
|
break;
|
|
|
|
case NS_LOADER_TYPE_NATIVE:
|
|
loaderName = nativeComponentType;
|
|
break;
|
|
|
|
default:
|
|
loaderName = loaderData->ElementAt(factoryEntry->mLoaderType).type.get();
|
|
}
|
|
|
|
const char* location = factoryEntry->mLocationKey;
|
|
|
|
// 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)
|
|
NS_Free(contractID);
|
|
if (className)
|
|
NS_Free(className);
|
|
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
static PLDHashOperator
|
|
AutoRegEntryWriter(nsIHashable *aKey, PRInt64 &aTimestamp, void* aClosure)
|
|
{
|
|
PRFileDesc* fd = (PRFileDesc*) aClosure;
|
|
|
|
nsCOMPtr<nsILocalFile> lf(do_QueryInterface(aKey));
|
|
|
|
nsCAutoString location;
|
|
nsComponentManagerImpl::gComponentManager->
|
|
RegistryLocationForFile(lf, location);
|
|
|
|
PR_fprintf(fd, "%s,%lld\n", location.get(), (PRInt64) aTimestamp);
|
|
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
nsresult
|
|
nsComponentManagerImpl::WritePersistentRegistry()
|
|
{
|
|
if (!mRegistryFile)
|
|
return NS_ERROR_FAILURE; // this should have been set by Init().
|
|
|
|
nsCOMPtr<nsIFile> file;
|
|
mRegistryFile->Clone(getter_AddRefs(file));
|
|
if (!file)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
nsCOMPtr<nsILocalFile> localFile(do_QueryInterface(file));
|
|
|
|
nsCAutoString originalLeafName;
|
|
localFile->GetNativeLeafName(originalLeafName);
|
|
|
|
nsCAutoString leafName;
|
|
leafName.Assign(originalLeafName + NS_LITERAL_CSTRING(".tmp"));
|
|
|
|
localFile->SetNativeLeafName(leafName);
|
|
|
|
PRFileDesc* fd = nsnull;
|
|
// Owner and group can setup components, everyone else should be able to see but not poison them.
|
|
nsresult rv = localFile->OpenNSPRFileDesc(PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE, 0664, &fd);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (PR_fprintf(fd, "Generated File. Do not edit.\n") == (PRUint32) -1) {
|
|
rv = NS_ERROR_UNEXPECTED;
|
|
goto out;
|
|
}
|
|
|
|
if (PR_fprintf(fd, "\n[HEADER]\nVersion,%d,%d\n",
|
|
PERSISTENT_REGISTRY_VERSION_MAJOR,
|
|
PERSISTENT_REGISTRY_VERSION_MINOR) == (PRUint32) -1) {
|
|
rv = NS_ERROR_UNEXPECTED;
|
|
goto out;
|
|
}
|
|
|
|
if (PR_fprintf(fd, "\n[COMPONENTS]\n") == (PRUint32) -1) {
|
|
rv = NS_ERROR_UNEXPECTED;
|
|
goto out;
|
|
}
|
|
|
|
mAutoRegEntries.Enumerate(AutoRegEntryWriter, (void*)fd);
|
|
|
|
PersistentWriterArgs args;
|
|
args.mFD = fd;
|
|
args.mLoaderData = &mLoaderData;
|
|
|
|
if (PR_fprintf(fd, "\n[CLASSIDS]\n") == (PRUint32) -1) {
|
|
rv = NS_ERROR_UNEXPECTED;
|
|
goto out;
|
|
}
|
|
|
|
|
|
PL_DHashTableEnumerate(&mFactories, ClassIDWriter, (void*)&args);
|
|
|
|
if (PR_fprintf(fd, "\n[CONTRACTIDS]\n") == (PRUint32) -1) {
|
|
rv = NS_ERROR_UNEXPECTED;
|
|
goto out;
|
|
}
|
|
|
|
|
|
PL_DHashTableEnumerate(&mContractIDs, ContractIDWriter, (void*)&args);
|
|
|
|
if (PR_fprintf(fd, "\n[CATEGORIES]\n") == (PRUint32) -1) {
|
|
rv = NS_ERROR_UNEXPECTED;
|
|
goto out;
|
|
}
|
|
|
|
NS_ASSERTION(mCategoryManager, "nsComponentManager used initialized");
|
|
|
|
rv = mCategoryManager->WriteCategoryManagerToRegistry(fd);
|
|
|
|
out:
|
|
PR_Close(fd);
|
|
|
|
// don't create the file is there was a problem????
|
|
NS_ENSURE_SUCCESS(rv, 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<nsIFile> 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,
|
|
nsFactoryEntry *fe)
|
|
{
|
|
if(!aContractID || !aContractIDLen)
|
|
return NS_ERROR_NULL_POINTER;
|
|
|
|
NS_ABORT_IF_FALSE(PR_InMonitor(mMon), "called from outside mMon");
|
|
|
|
nsContractIDTableEntry* contractIDTableEntry =
|
|
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) {
|
|
char *contractID = ArenaStrndup(aContractID, aContractIDLen, &mArena);
|
|
if (!contractID)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
contractIDTableEntry->mContractID = contractID;
|
|
contractIDTableEntry->mContractIDLen = aContractIDLen;
|
|
}
|
|
|
|
contractIDTableEntry->mFactoryEntry = fe;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsFactoryEntry *
|
|
nsComponentManagerImpl::GetFactoryEntry(const char *aContractID,
|
|
PRUint32 aContractIDLen)
|
|
{
|
|
nsFactoryEntry *fe = nsnull;
|
|
{
|
|
nsAutoMonitor mon(mMon);
|
|
|
|
nsContractIDTableEntry* contractIDTableEntry =
|
|
static_cast<nsContractIDTableEntry*>
|
|
(PL_DHashTableOperate(&mContractIDs, aContractID,
|
|
PL_DHASH_LOOKUP));
|
|
|
|
|
|
if (PL_DHASH_ENTRY_IS_BUSY(contractIDTableEntry)) {
|
|
fe = contractIDTableEntry->mFactoryEntry;
|
|
}
|
|
} //exit monitor
|
|
|
|
return fe;
|
|
}
|
|
|
|
|
|
nsFactoryEntry *
|
|
nsComponentManagerImpl::GetFactoryEntry(const nsCID &aClass)
|
|
{
|
|
nsFactoryEntry *entry = nsnull;
|
|
{
|
|
nsAutoMonitor mon(mMon);
|
|
|
|
nsFactoryTableEntry* factoryTableEntry =
|
|
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.
|
|
*/
|
|
NS_IMETHODIMP
|
|
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);
|
|
}
|
|
|
|
|
|
nsresult
|
|
nsComponentManagerImpl::FindFactory(const char *contractID,
|
|
PRUint32 aContractIDLen,
|
|
nsIFactory **aFactory)
|
|
{
|
|
PR_ASSERT(aFactory != nsnull);
|
|
|
|
nsFactoryEntry *entry = GetFactoryEntry(contractID, aContractIDLen);
|
|
|
|
if (!entry)
|
|
return NS_ERROR_FACTORY_NOT_REGISTERED;
|
|
|
|
return entry->GetFactory(aFactory);
|
|
}
|
|
|
|
/**
|
|
* GetClassObject()
|
|
*
|
|
* Given a classID, this finds the singleton ClassObject that implements the CID.
|
|
* Returns an interface of type aIID off the singleton classobject.
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::GetClassObject(const nsCID &aClass, const nsIID &aIID,
|
|
void **aResult)
|
|
{
|
|
nsresult rv;
|
|
|
|
nsCOMPtr<nsIFactory> factory;
|
|
|
|
#ifdef PR_LOGGING
|
|
if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_DEBUG))
|
|
{
|
|
char *buf = aClass.ToString();
|
|
PR_LogPrint("nsComponentManager: GetClassObject(%s)", buf);
|
|
if (buf)
|
|
NS_Free(buf);
|
|
}
|
|
#endif
|
|
|
|
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;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::GetClassObjectByContractID(const char *contractID,
|
|
const nsIID &aIID,
|
|
void **aResult)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aResult);
|
|
NS_ENSURE_ARG_POINTER(contractID);
|
|
|
|
nsresult rv;
|
|
|
|
nsCOMPtr<nsIFactory> factory;
|
|
|
|
#ifdef PR_LOGGING
|
|
if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_DEBUG))
|
|
{
|
|
PR_LogPrint("nsComponentManager: GetClassObject(%s)", contractID);
|
|
}
|
|
#endif
|
|
|
|
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.
|
|
*
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::ContractIDToClassID(const char *aContractID, nsCID *aClass)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aContractID);
|
|
NS_ENSURE_ARG_POINTER(aClass);
|
|
|
|
nsresult rv = NS_ERROR_FACTORY_NOT_REGISTERED;
|
|
|
|
nsFactoryEntry *fe = GetFactoryEntry(aContractID, strlen(aContractID));
|
|
if (fe) {
|
|
*aClass = fe->mCid;
|
|
rv = NS_OK;
|
|
}
|
|
#ifdef PR_LOGGING
|
|
if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_WARNING)) {
|
|
char *buf = 0;
|
|
if (NS_SUCCEEDED(rv))
|
|
buf = aClass->ToString();
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_WARNING,
|
|
("nsComponentManager: ContractIDToClassID(%s)->%s", aContractID,
|
|
NS_SUCCEEDED(rv) ? buf : "[FAILED]"));
|
|
if (buf)
|
|
NS_Free(buf);
|
|
}
|
|
#endif
|
|
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 aren't caching this.
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::CLSIDToContractID(const nsCID &aClass,
|
|
char* *aClassName,
|
|
char* *aContractID)
|
|
{
|
|
NS_WARNING("Need to implement CLSIDToContractID");
|
|
|
|
nsresult rv = NS_ERROR_FACTORY_NOT_REGISTERED;
|
|
#ifdef PR_LOGGING
|
|
if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_WARNING))
|
|
{
|
|
char *buf = aClass.ToString();
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_WARNING,
|
|
("nsComponentManager: CLSIDToContractID(%s)->%s", buf,
|
|
NS_SUCCEEDED(rv) ? *aContractID : "[FAILED]"));
|
|
if (buf)
|
|
NS_Free(buf);
|
|
}
|
|
#endif
|
|
return rv;
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
NS_IMETHODIMP
|
|
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, don't 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)
|
|
return NS_ERROR_FACTORY_NOT_REGISTERED;
|
|
|
|
#ifdef SHOW_CI_ON_EXISTING_SERVICE
|
|
if (entry->mServiceObject) {
|
|
nsXPIDLCString cid;
|
|
cid.Adopt(aClass.ToString());
|
|
nsCAutoString message;
|
|
message = NS_LITERAL_CSTRING("You are calling CreateInstance \"") +
|
|
cid + NS_LITERAL_CSTRING("\" when a service for this CID already exists!");
|
|
NS_ERROR(message.get());
|
|
}
|
|
#endif
|
|
|
|
nsIFactory *factory = nsnull;
|
|
nsresult rv = entry->GetFactory(&factory);
|
|
|
|
if (NS_SUCCEEDED(rv))
|
|
{
|
|
rv = factory->CreateInstance(aDelegate, aIID, aResult);
|
|
if (NS_SUCCEEDED(rv) && !*aResult) {
|
|
NS_ERROR("Factory did not return an object but returned success!");
|
|
rv = NS_ERROR_SERVICE_NOT_FOUND;
|
|
}
|
|
NS_RELEASE(factory);
|
|
}
|
|
else
|
|
{
|
|
// Translate error values
|
|
rv = NS_ERROR_FACTORY_NOT_REGISTERED;
|
|
}
|
|
|
|
#ifdef PR_LOGGING
|
|
if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_WARNING))
|
|
{
|
|
char *buf = aClass.ToString();
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_WARNING,
|
|
("nsComponentManager: CreateInstance(%s) %s", buf,
|
|
NS_SUCCEEDED(rv) ? "succeeded" : "FAILED"));
|
|
if (buf)
|
|
NS_Free(buf);
|
|
}
|
|
#endif
|
|
|
|
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.
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::CreateInstanceByContractID(const char *aContractID,
|
|
nsISupports *aDelegate,
|
|
const nsIID &aIID,
|
|
void **aResult)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aContractID);
|
|
|
|
// 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, don't 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)
|
|
return NS_ERROR_FACTORY_NOT_REGISTERED;
|
|
|
|
#ifdef SHOW_CI_ON_EXISTING_SERVICE
|
|
if (entry->mServiceObject) {
|
|
nsCAutoString message;
|
|
message =
|
|
NS_LITERAL_CSTRING("You are calling CreateInstance \"") +
|
|
nsDependentCString(aContractID) +
|
|
NS_LITERAL_CSTRING("\" when a service for this CID already exists! "
|
|
"Add it to abusedContracts to track down the service consumer.");
|
|
NS_ERROR(message.get());
|
|
}
|
|
#endif
|
|
|
|
nsIFactory *factory = nsnull;
|
|
nsresult rv = entry->GetFactory(&factory);
|
|
|
|
if (NS_SUCCEEDED(rv))
|
|
{
|
|
|
|
rv = factory->CreateInstance(aDelegate, aIID, aResult);
|
|
if (NS_SUCCEEDED(rv) && !*aResult) {
|
|
NS_ERROR("Factory did not return an object but returned success!");
|
|
rv = NS_ERROR_SERVICE_NOT_FOUND;
|
|
}
|
|
NS_RELEASE(factory);
|
|
}
|
|
else
|
|
{
|
|
// Translate error values
|
|
rv = NS_ERROR_FACTORY_NOT_REGISTERED;
|
|
}
|
|
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_WARNING,
|
|
("nsComponentManager: CreateInstanceByContractID(%s) %s", aContractID,
|
|
NS_SUCCEEDED(rv) ? "succeeded" : "FAILED"));
|
|
|
|
return rv;
|
|
}
|
|
|
|
// Service Manager Impl
|
|
static
|
|
PLDHashOperator
|
|
FreeServiceFactoryEntryEnumerate(PLDHashTable *aTable,
|
|
PLDHashEntryHdr *aHdr,
|
|
PRUint32 aNumber,
|
|
void *aData)
|
|
{
|
|
nsFactoryTableEntry* entry = static_cast<nsFactoryTableEntry*>(aHdr);
|
|
|
|
if (!entry->mFactoryEntry)
|
|
return PL_DHASH_NEXT;
|
|
|
|
nsFactoryEntry* factoryEntry = entry->mFactoryEntry;
|
|
factoryEntry->mServiceObject = nsnull;
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
static
|
|
PLDHashOperator
|
|
FreeServiceContractIDEntryEnumerate(PLDHashTable *aTable,
|
|
PLDHashEntryHdr *aHdr,
|
|
PRUint32 aNumber,
|
|
void *aData)
|
|
{
|
|
nsContractIDTableEntry* entry = static_cast<nsContractIDTableEntry*>(aHdr);
|
|
|
|
if (!entry->mFactoryEntry)
|
|
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;
|
|
}
|
|
|
|
// This should only ever be called within the monitor!
|
|
nsComponentManagerImpl::PendingServiceInfo*
|
|
nsComponentManagerImpl::AddPendingService(const nsCID& aServiceCID,
|
|
PRThread* aThread)
|
|
{
|
|
PendingServiceInfo* newInfo = mPendingServices.AppendElement();
|
|
if (newInfo) {
|
|
newInfo->cid = &aServiceCID;
|
|
newInfo->thread = aThread;
|
|
}
|
|
return newInfo;
|
|
}
|
|
|
|
// This should only ever be called within the monitor!
|
|
void
|
|
nsComponentManagerImpl::RemovePendingService(const nsCID& aServiceCID)
|
|
{
|
|
PRUint32 pendingCount = mPendingServices.Length();
|
|
for (PRUint32 index = 0; index < pendingCount; ++index) {
|
|
const PendingServiceInfo& info = mPendingServices.ElementAt(index);
|
|
if (info.cid->Equals(aServiceCID)) {
|
|
mPendingServices.RemoveElementAt(index);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// This should only ever be called within the monitor!
|
|
PRThread*
|
|
nsComponentManagerImpl::GetPendingServiceThread(const nsCID& aServiceCID) const
|
|
{
|
|
PRUint32 pendingCount = mPendingServices.Length();
|
|
for (PRUint32 index = 0; index < pendingCount; ++index) {
|
|
const PendingServiceInfo& info = mPendingServices.ElementAt(index);
|
|
if (info.cid->Equals(aServiceCID)) {
|
|
return info.thread;
|
|
}
|
|
}
|
|
return nsnull;
|
|
}
|
|
|
|
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, don't 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);
|
|
|
|
nsFactoryEntry* entry = nsnull;
|
|
nsFactoryTableEntry* factoryTableEntry =
|
|
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<nsISupports> supports = entry->mServiceObject;
|
|
mon.Exit();
|
|
return supports->QueryInterface(aIID, result);
|
|
}
|
|
|
|
PRThread* currentPRThread = PR_GetCurrentThread();
|
|
NS_ASSERTION(currentPRThread, "This should never be null!");
|
|
|
|
// Needed to optimize the event loop below.
|
|
nsIThread* currentThread = nsnull;
|
|
|
|
PRThread* pendingPRThread;
|
|
while ((pendingPRThread = GetPendingServiceThread(aClass))) {
|
|
if (pendingPRThread == currentPRThread) {
|
|
NS_ERROR("Recursive GetService!");
|
|
return NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
|
|
mon.Exit();
|
|
|
|
if (!currentThread) {
|
|
currentThread = NS_GetCurrentThread();
|
|
NS_ASSERTION(currentThread, "This should never be null!");
|
|
}
|
|
|
|
// This will process a single event or yield the thread if no event is
|
|
// pending.
|
|
if (!NS_ProcessNextEvent(currentThread, PR_FALSE)) {
|
|
PR_Sleep(PR_INTERVAL_NO_WAIT);
|
|
}
|
|
|
|
mon.Enter();
|
|
}
|
|
|
|
if (currentThread) {
|
|
// If we have a currentThread then we must have waited on another thread
|
|
// to create the service. Grab it now if that succeeded.
|
|
if (!entry) {
|
|
factoryTableEntry = static_cast<nsFactoryTableEntry*>
|
|
(PL_DHashTableOperate(&mFactories, &aClass, PL_DHASH_LOOKUP));
|
|
|
|
if (PL_DHASH_ENTRY_IS_BUSY(factoryTableEntry)) {
|
|
entry = factoryTableEntry->mFactoryEntry;
|
|
}
|
|
}
|
|
|
|
// It's still possible that the other thread failed to create the
|
|
// service so we're not guaranteed to have an entry or service yet.
|
|
if (entry && entry->mServiceObject) {
|
|
nsCOMPtr<nsISupports> supports = entry->mServiceObject;
|
|
mon.Exit();
|
|
return supports->QueryInterface(aIID, result);
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
PendingServiceInfo* newInfo =
|
|
#endif
|
|
AddPendingService(aClass, currentPRThread);
|
|
NS_ASSERTION(newInfo, "Failed to add info to the array!");
|
|
|
|
nsCOMPtr<nsISupports> 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();
|
|
|
|
nsresult rv = CreateInstance(aClass, nsnull, aIID, getter_AddRefs(service));
|
|
|
|
mon.Enter();
|
|
|
|
#ifdef DEBUG
|
|
pendingPRThread = GetPendingServiceThread(aClass);
|
|
NS_ASSERTION(pendingPRThread == currentPRThread,
|
|
"Pending service array has been changed!");
|
|
#endif
|
|
RemovePendingService(aClass);
|
|
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (!entry) { // second hash lookup for GetService
|
|
nsFactoryTableEntry* factoryTableEntry =
|
|
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;
|
|
}
|
|
|
|
NS_ASSERTION(!entry->mServiceObject, "Created two instances of a service!");
|
|
|
|
entry->mServiceObject = service;
|
|
*result = service.get();
|
|
if (!*result) {
|
|
NS_ERROR("Factory did not return an object but returned success!");
|
|
return NS_ERROR_SERVICE_NOT_FOUND;
|
|
}
|
|
NS_ADDREF(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
|
|
nsFactoryEntry *entry = GetFactoryEntry(aClass);
|
|
|
|
if (!entry) {
|
|
void *mem;
|
|
PL_ARENA_ALLOCATE(mem, &mArena, sizeof(nsFactoryEntry));
|
|
if (!mem)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
entry = new (mem) nsFactoryEntry(aClass, (nsIFactory*) nsnull);
|
|
|
|
nsFactoryTableEntry* factoryTableEntry =
|
|
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 =
|
|
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_AVAILABLE;
|
|
|
|
entry->mServiceObject = nsnull;
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::RegisterService(const char* aContractID,
|
|
nsISupports* aService)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aContractID);
|
|
|
|
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) {
|
|
void *mem;
|
|
PL_ARENA_ALLOCATE(mem, &mArena, sizeof(nsFactoryEntry));
|
|
if (!mem)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
entry = new (mem) nsFactoryEntry(kEmptyCID, (nsIFactory*) nsnull);
|
|
|
|
nsContractIDTableEntry* contractIDTableEntry =
|
|
static_cast<nsContractIDTableEntry*>
|
|
(PL_DHashTableOperate(&mContractIDs, aContractID,
|
|
PL_DHASH_ADD));
|
|
if (!contractIDTableEntry) {
|
|
delete entry;
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
if (!contractIDTableEntry->mContractID) {
|
|
char *contractID = ArenaStrndup(aContractID, contractIDLen, &mArena);
|
|
if (!contractID)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
contractIDTableEntry->mContractID = contractID;
|
|
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 don't 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, don't 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_AVAILABLE;
|
|
nsFactoryEntry* entry = nsnull;
|
|
nsFactoryTableEntry* factoryTableEntry =
|
|
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<nsISupports> 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 don't 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, don't 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_AVAILABLE;
|
|
nsFactoryEntry *entry = nsnull;
|
|
{
|
|
nsAutoMonitor mon(mMon);
|
|
|
|
nsContractIDTableEntry* contractIDTableEntry =
|
|
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->mServiceObject) {
|
|
nsCOMPtr<nsISupports> 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 =
|
|
static_cast<nsContractIDTableEntry*>
|
|
(PL_DHashTableOperate(&mContractIDs, aContractID,
|
|
PL_DHASH_LOOKUP));
|
|
|
|
if (PL_DHASH_ENTRY_IS_BUSY(contractIDTableEntry)) {
|
|
entry = contractIDTableEntry->mFactoryEntry;
|
|
}
|
|
|
|
if (!entry || !entry->mServiceObject)
|
|
return NS_ERROR_SERVICE_NOT_AVAILABLE;
|
|
|
|
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, don't 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);
|
|
|
|
nsFactoryEntry *entry = nsnull;
|
|
nsContractIDTableEntry* contractIDTableEntry =
|
|
static_cast<nsContractIDTableEntry*>
|
|
(PL_DHashTableOperate(&mContractIDs, aContractID,
|
|
PL_DHASH_LOOKUP));
|
|
|
|
if (!PL_DHASH_ENTRY_IS_BUSY(contractIDTableEntry))
|
|
return NS_ERROR_FACTORY_NOT_REGISTERED;
|
|
|
|
entry = contractIDTableEntry->mFactoryEntry;
|
|
NS_ASSERTION(entry, "This should never be null!");
|
|
|
|
if (entry->mServiceObject) {
|
|
nsCOMPtr<nsISupports> serviceObject = entry->mServiceObject;
|
|
|
|
// We need to not be holding the service manager's monitor while calling
|
|
// QueryInterface, because it invokes user code which could try to re-enter
|
|
// the service manager, or try to grab some other lock/monitor/condvar
|
|
// and deadlock, e.g. bug 282743.
|
|
mon.Exit();
|
|
return serviceObject->QueryInterface(aIID, result);
|
|
}
|
|
|
|
PRThread* currentPRThread = PR_GetCurrentThread();
|
|
NS_ASSERTION(currentPRThread, "This should never be null!");
|
|
|
|
// Needed to optimize the event loop below.
|
|
nsIThread* currentThread = nsnull;
|
|
|
|
PRThread* pendingPRThread;
|
|
while ((pendingPRThread = GetPendingServiceThread(entry->mCid))) {
|
|
if (pendingPRThread == currentPRThread) {
|
|
NS_ERROR("Recursive GetService!");
|
|
return NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
|
|
mon.Exit();
|
|
|
|
if (!currentThread) {
|
|
currentThread = NS_GetCurrentThread();
|
|
NS_ASSERTION(currentThread, "This should never be null!");
|
|
}
|
|
|
|
// This will process a single event or yield the thread if no event is
|
|
// pending.
|
|
if (!NS_ProcessNextEvent(currentThread, PR_FALSE)) {
|
|
PR_Sleep(PR_INTERVAL_NO_WAIT);
|
|
}
|
|
|
|
mon.Enter();
|
|
}
|
|
|
|
if (currentThread && entry->mServiceObject) {
|
|
// If we have a currentThread then we must have waited on another thread
|
|
// to create the service. Grab it now if that succeeded.
|
|
nsCOMPtr<nsISupports> serviceObject = entry->mServiceObject;
|
|
mon.Exit();
|
|
return serviceObject->QueryInterface(aIID, result);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
PendingServiceInfo* newInfo =
|
|
#endif
|
|
AddPendingService(entry->mCid, currentPRThread);
|
|
NS_ASSERTION(newInfo, "Failed to add info to the array!");
|
|
|
|
nsCOMPtr<nsISupports> 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();
|
|
|
|
nsresult rv = CreateInstanceByContractID(aContractID, nsnull, aIID,
|
|
getter_AddRefs(service));
|
|
|
|
mon.Enter();
|
|
|
|
#ifdef DEBUG
|
|
pendingPRThread = GetPendingServiceThread(entry->mCid);
|
|
NS_ASSERTION(pendingPRThread == currentPRThread,
|
|
"Pending service array has been changed!");
|
|
#endif
|
|
RemovePendingService(entry->mCid);
|
|
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
NS_ASSERTION(!entry->mServiceObject, "Created two instances of a service!");
|
|
|
|
entry->mServiceObject = service;
|
|
*result = service.get();
|
|
NS_ADDREF(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;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::RegistryLocationForSpec(nsIFile *aSpec,
|
|
char **aRegistryName)
|
|
{
|
|
nsCAutoString location;
|
|
nsresult rv = RegistryLocationForFile(aSpec, location);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
*aRegistryName = ToNewCString(location);
|
|
if (!*aRegistryName)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsComponentManagerImpl::RegistryLocationForFile(nsIFile* aFile,
|
|
nsCString& aRegistryName)
|
|
{
|
|
nsresult rv;
|
|
|
|
if (!mComponentsDir)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
// First check to see if this component is in the application
|
|
// components directory
|
|
PRBool containedIn;
|
|
mComponentsDir->Contains(aFile, PR_TRUE, &containedIn);
|
|
|
|
nsCAutoString nativePathString;
|
|
|
|
if (containedIn){
|
|
rv = aFile->GetNativePath(nativePathString);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
aRegistryName.Assign(NS_LITERAL_CSTRING(XPCOM_RELCOMPONENT_PREFIX) +
|
|
Substring(nativePathString, mComponentsOffset + 1));
|
|
return NS_OK;
|
|
}
|
|
|
|
// Next check to see if this component is in the GRE
|
|
// components directory
|
|
|
|
mGREComponentsDir->Contains(aFile, PR_TRUE, &containedIn);
|
|
|
|
if (containedIn){
|
|
rv = aFile->GetNativePath(nativePathString);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
aRegistryName.Assign(NS_LITERAL_CSTRING(XPCOM_GRECOMPONENT_PREFIX) +
|
|
Substring(nativePathString, mGREComponentsOffset + 1));
|
|
return NS_OK;
|
|
}
|
|
|
|
/* absolute names include volume info on Mac, so persistent descriptor */
|
|
rv = aFile->GetNativePath(nativePathString);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
aRegistryName.Assign(NS_LITERAL_CSTRING(XPCOM_ABSCOMPONENT_PREFIX) +
|
|
nativePathString);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::SpecForRegistryLocation(const char *aLocation,
|
|
nsIFile **aSpec)
|
|
{
|
|
return FileForRegistryLocation(nsDependentCString(aLocation),
|
|
(nsILocalFile**) aSpec);
|
|
}
|
|
|
|
nsresult
|
|
nsComponentManagerImpl::FileForRegistryLocation(const nsCString &aLocation,
|
|
nsILocalFile **aSpec)
|
|
{
|
|
// i18n: assuming aLocation is encoded for the current locale
|
|
|
|
nsresult rv;
|
|
|
|
const nsDependentCSubstring prefix = Substring(aLocation, 0, 4);
|
|
|
|
/* abs:/full/path/to/libcomponent.so */
|
|
if (prefix.EqualsLiteral(XPCOM_ABSCOMPONENT_PREFIX)) {
|
|
|
|
nsLocalFile* file = new nsLocalFile;
|
|
if (!file) return NS_ERROR_FAILURE;
|
|
|
|
rv = file->InitWithNativePath(Substring(aLocation, 4));
|
|
file->QueryInterface(NS_GET_IID(nsILocalFile), (void**)aSpec);
|
|
return rv;
|
|
}
|
|
|
|
if (prefix.EqualsLiteral(XPCOM_RELCOMPONENT_PREFIX)) {
|
|
|
|
if (!mComponentsDir)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
nsILocalFile* file = nsnull;
|
|
rv = mComponentsDir->Clone((nsIFile**)&file);
|
|
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
rv = file->AppendRelativeNativePath(Substring(aLocation, 4));
|
|
*aSpec = file;
|
|
return rv;
|
|
}
|
|
|
|
if (prefix.EqualsLiteral(XPCOM_GRECOMPONENT_PREFIX)) {
|
|
|
|
if (!mGREComponentsDir)
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
|
|
nsILocalFile* file = nsnull;
|
|
rv = mGREComponentsDir->Clone((nsIFile**)&file);
|
|
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
rv = file->AppendRelativeNativePath(Substring(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.
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::RegisterFactory(const nsCID &aClass,
|
|
const char *aClassName,
|
|
const char *aContractID,
|
|
nsIFactory *aFactory,
|
|
PRBool aReplace)
|
|
{
|
|
nsAutoMonitor mon(mMon);
|
|
#ifdef PR_LOGGING
|
|
if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_WARNING))
|
|
{
|
|
char *buf = aClass.ToString();
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_WARNING,
|
|
("nsComponentManager: RegisterFactory(%s, %s)", buf,
|
|
(aContractID ? aContractID : "(null)")));
|
|
if (buf)
|
|
NS_Free(buf);
|
|
}
|
|
#endif
|
|
nsFactoryEntry *entry = nsnull;
|
|
nsFactoryTableEntry* factoryTableEntry = static_cast<nsFactoryTableEntry*>
|
|
(PL_DHashTableOperate(&mFactories,
|
|
&aClass,
|
|
PL_DHASH_ADD));
|
|
|
|
if (!factoryTableEntry)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
|
|
if (PL_DHASH_ENTRY_IS_BUSY(factoryTableEntry)) {
|
|
entry = factoryTableEntry->mFactoryEntry;
|
|
}
|
|
|
|
if (entry && !aReplace)
|
|
{
|
|
// Already registered
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_ERROR,
|
|
("\t\tFactory already registered."));
|
|
return NS_ERROR_FACTORY_EXISTS;
|
|
}
|
|
|
|
void *mem;
|
|
PL_ARENA_ALLOCATE(mem, &mArena, sizeof(nsFactoryEntry));
|
|
if (!mem)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
entry = new (mem) nsFactoryEntry(aClass, aFactory, entry);
|
|
|
|
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 : "<none>"));
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::RegisterComponent(const nsCID &aClass,
|
|
const char *aClassName,
|
|
const char *aContractID,
|
|
const char *aPersistentDescriptor,
|
|
PRBool aReplace,
|
|
PRBool aPersist)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aPersistentDescriptor);
|
|
return RegisterComponentCommon(aClass, aClassName,
|
|
aContractID,
|
|
aContractID ? strlen(aContractID) : 0,
|
|
aPersistentDescriptor,
|
|
strlen(aPersistentDescriptor),
|
|
aReplace, aPersist,
|
|
nativeComponentType);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::RegisterComponentWithType(const nsCID &aClass,
|
|
const char *aClassName,
|
|
const char *aContractID,
|
|
nsIFile *aSpec,
|
|
const char *aLocation,
|
|
PRBool aReplace,
|
|
PRBool aPersist,
|
|
const char *aType)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aLocation);
|
|
return RegisterComponentCommon(aClass, aClassName,
|
|
aContractID,
|
|
aContractID ? strlen(aContractID) : 0,
|
|
aLocation,
|
|
strlen(aLocation),
|
|
aReplace, aPersist,
|
|
aType);
|
|
}
|
|
|
|
/*
|
|
* Register a component, using whatever they stuck in the nsIFile.
|
|
*/
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::RegisterComponentSpec(const nsCID &aClass,
|
|
const char *aClassName,
|
|
const char *aContractID,
|
|
nsIFile *aLibrarySpec,
|
|
PRBool aReplace,
|
|
PRBool aPersist)
|
|
{
|
|
nsCAutoString registryName;
|
|
nsresult rv = RegistryLocationForFile(aLibrarySpec,
|
|
registryName);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
rv = RegisterComponentWithType(aClass, aClassName,
|
|
aContractID,
|
|
aLibrarySpec,
|
|
registryName.get(),
|
|
aReplace, aPersist,
|
|
nativeComponentType);
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
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)
|
|
{
|
|
nsresult rv;
|
|
|
|
nsAutoMonitor mon(mMon);
|
|
|
|
nsFactoryEntry *entry = GetFactoryEntry(aClass);
|
|
|
|
// Normalize proid and classname
|
|
const char *contractID = (aContractID && *aContractID) ? aContractID : nsnull;
|
|
#ifdef PR_LOGGING
|
|
if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_WARNING))
|
|
{
|
|
char *buf = aClass.ToString();
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_WARNING,
|
|
("nsComponentManager: RegisterComponentCommon(%s, %s, %s, %s)",
|
|
buf,
|
|
contractID ? contractID : "(null)",
|
|
aRegistryName, aType));
|
|
if (buf)
|
|
NS_Free(buf);
|
|
}
|
|
#endif
|
|
if (entry && !aReplace) {
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_ERROR,
|
|
("\t\tFactory already registered."));
|
|
return NS_ERROR_FACTORY_EXISTS;
|
|
}
|
|
|
|
int typeIndex = GetLoaderType(aType);
|
|
if (typeIndex == NS_LOADER_TYPE_INVALID)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
if (entry) {
|
|
entry->ReInit(typeIndex, aRegistryName);
|
|
}
|
|
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,
|
|
typeIndex,
|
|
aRegistryName);
|
|
if (!entry->mLocationKey)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
nsFactoryTableEntry* factoryTableEntry =
|
|
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 NS_OK;
|
|
}
|
|
|
|
|
|
nsIModuleLoader*
|
|
nsComponentManagerImpl::LoaderForType(LoaderType aType)
|
|
{
|
|
NS_ASSERTION(aType != NS_LOADER_TYPE_STATIC,
|
|
"Static component loader is special");
|
|
|
|
if (aType == NS_LOADER_TYPE_INVALID)
|
|
return nsnull;
|
|
|
|
if (aType == NS_LOADER_TYPE_NATIVE)
|
|
return &mNativeModuleLoader;
|
|
|
|
NS_ASSERTION(aType >= 0 && aType < mLoaderData.Length(),
|
|
"LoaderType out of range");
|
|
|
|
if (!mLoaderData[aType].loader) {
|
|
nsCOMPtr<nsIModuleLoader> loader;
|
|
loader = do_GetServiceFromCategory("module-loader",
|
|
mLoaderData[aType].type.get());
|
|
if (!loader)
|
|
return nsnull;
|
|
|
|
loader.swap(mLoaderData[aType].loader);
|
|
}
|
|
|
|
return mLoaderData[aType].loader;
|
|
}
|
|
|
|
void
|
|
nsComponentManagerImpl::GetAllLoaders()
|
|
{
|
|
NS_ASSERTION(mCategoryManager, "nsComponentManager used uninitialized");
|
|
|
|
nsCOMPtr<nsISimpleEnumerator> loaderEnum;
|
|
mCategoryManager->EnumerateCategory("module-loader",
|
|
getter_AddRefs(loaderEnum));
|
|
nsCOMPtr<nsIUTF8StringEnumerator>
|
|
loaderStrings(do_QueryInterface(loaderEnum));
|
|
if (loaderStrings) {
|
|
PRBool hasMore;
|
|
while (NS_SUCCEEDED(loaderStrings->HasMore(&hasMore)) && hasMore) {
|
|
nsCAutoString loaderType;
|
|
if (NS_FAILED(loaderStrings->GetNext(loaderType)))
|
|
continue;
|
|
|
|
// We depend on the loader being created. Add the loader type and
|
|
// create the loader object too.
|
|
(void) LoaderForType(AddLoaderType(loaderType.get()));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Convert a loader type string into an index into the component data
|
|
// array. Empty loader types are converted to NATIVE.
|
|
LoaderType
|
|
nsComponentManagerImpl::GetLoaderType(const char *typeStr)
|
|
{
|
|
if (!typeStr || !*typeStr) {
|
|
// Empty type strings are NATIVE
|
|
return NS_LOADER_TYPE_NATIVE;
|
|
}
|
|
|
|
if (!strcmp(typeStr, staticComponentType))
|
|
return NS_LOADER_TYPE_STATIC;
|
|
|
|
if (!strcmp(typeStr, nativeComponentType))
|
|
return NS_LOADER_TYPE_NATIVE;
|
|
|
|
const nsDependentCString type(typeStr);
|
|
|
|
for (unsigned int i = 0; i < mLoaderData.Length(); ++i) {
|
|
if (mLoaderData[i].type == type)
|
|
return i;
|
|
}
|
|
|
|
return NS_LOADER_TYPE_INVALID;
|
|
}
|
|
|
|
// Add a loader type if not already known. Out the typeIndex
|
|
// if the loader type is either added or already there.
|
|
LoaderType
|
|
nsComponentManagerImpl::AddLoaderType(const char *typeStr)
|
|
{
|
|
LoaderType typeIndex = GetLoaderType(typeStr);
|
|
if (typeIndex != NS_LOADER_TYPE_INVALID)
|
|
return typeIndex;
|
|
|
|
// Add the loader type
|
|
nsLoaderdata *elem = mLoaderData.AppendElement();
|
|
if (!elem)
|
|
return NS_LOADER_TYPE_INVALID;
|
|
|
|
elem->type.Assign(typeStr);
|
|
return mLoaderData.Length() - 1;
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
const nsCID* cid;
|
|
nsIFactory* factory;
|
|
} UnregisterConditions;
|
|
|
|
static PLDHashOperator
|
|
DeleteFoundCIDs(PLDHashTable *aTable,
|
|
PLDHashEntryHdr *aHdr,
|
|
PRUint32 aNumber,
|
|
void *aData)
|
|
{
|
|
nsContractIDTableEntry* entry = static_cast<nsContractIDTableEntry*>(aHdr);
|
|
|
|
if (!entry->mFactoryEntry)
|
|
return PL_DHASH_NEXT;
|
|
|
|
UnregisterConditions* data = (UnregisterConditions*)aData;
|
|
|
|
nsFactoryEntry* factoryEntry = entry->mFactoryEntry;
|
|
if (data->cid->Equals(factoryEntry->mCid) &&
|
|
data->factory == factoryEntry->mFactory.get())
|
|
return PL_DHASH_REMOVE;
|
|
|
|
return PL_DHASH_NEXT;
|
|
}
|
|
|
|
void
|
|
nsComponentManagerImpl::DeleteContractIDEntriesByCID(const nsCID* aClass, nsIFactory* factory)
|
|
{
|
|
UnregisterConditions aData;
|
|
aData.cid = aClass;
|
|
aData.factory = factory;
|
|
PL_DHashTableEnumerate(&mContractIDs, DeleteFoundCIDs, (void*)&aData);
|
|
}
|
|
|
|
nsresult
|
|
nsComponentManagerImpl::UnregisterFactory(const nsCID &aClass,
|
|
nsIFactory *aFactory)
|
|
{
|
|
#ifdef PR_LOGGING
|
|
if (PR_LOG_TEST(nsComponentManagerLog, PR_LOG_WARNING))
|
|
{
|
|
char *buf = aClass.ToString();
|
|
PR_LOG(nsComponentManagerLog, PR_LOG_WARNING,
|
|
("nsComponentManager: UnregisterFactory(%s)", buf));
|
|
if (buf)
|
|
NS_Free(buf);
|
|
}
|
|
#endif
|
|
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
|
|
nsresult rv = NS_ERROR_FACTORY_NOT_REGISTERED;
|
|
old = GetFactoryEntry(aClass);
|
|
|
|
if (old && (old->mFactory.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;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::UnregisterComponent(const nsCID &aClass,
|
|
const char *registryName)
|
|
{
|
|
NS_ERROR("Don't call nsIComponentManagerObsolete.unregisterComponent");
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::UnregisterComponentSpec(const nsCID &aClass,
|
|
nsIFile *aLibrarySpec)
|
|
{
|
|
NS_ERROR("Don't call nsIComponentManagerObsolete.unregisterComponentSpec");
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::FreeLibraries(void)
|
|
{
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*
|
|
*/
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::AutoRegister(PRInt32 when, nsIFile *inDirSpec)
|
|
{
|
|
return AutoRegister(inDirSpec);
|
|
}
|
|
|
|
nsresult
|
|
nsComponentManagerImpl::AutoRegisterImpl(nsIFile *inDirSpec,
|
|
nsCOMArray<nsILocalFile> &aLeftovers,
|
|
nsTArray<DeferredModule> &aDeferred)
|
|
{
|
|
NS_ASSERTION(inDirSpec, "inDirSpec must not be null");
|
|
|
|
nsresult rv;
|
|
|
|
PRBool isDir;
|
|
rv = inDirSpec->IsDirectory(&isDir);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (isDir)
|
|
return AutoRegisterDirectory(inDirSpec, aLeftovers, aDeferred);
|
|
|
|
nsCOMPtr<nsILocalFile> lf(do_QueryInterface(inDirSpec));
|
|
if (!lf)
|
|
return NS_NOINTERFACE;
|
|
|
|
rv = AutoRegisterComponent(lf, aDeferred);
|
|
if (NS_FAILED(rv))
|
|
aLeftovers.AppendObject(lf);
|
|
return rv;
|
|
}
|
|
|
|
static const char kNL[] = "\r\n";
|
|
|
|
nsresult
|
|
nsComponentManagerImpl::AutoRegisterDirectory(nsIFile *inDirSpec,
|
|
nsCOMArray<nsILocalFile> &aLeftovers,
|
|
nsTArray<DeferredModule> &aDeferred)
|
|
{
|
|
nsresult rv;
|
|
|
|
nsCOMPtr<nsIFile> componentsList;
|
|
inDirSpec->Clone(getter_AddRefs(componentsList));
|
|
if (componentsList) {
|
|
nsCOMPtr<nsILocalFile> lfComponentsList =
|
|
do_QueryInterface(componentsList);
|
|
lfComponentsList->AppendNative(NS_LITERAL_CSTRING("components.list"));
|
|
PRFileDesc* fd;
|
|
if (NS_SUCCEEDED(lfComponentsList->OpenNSPRFileDesc(PR_RDONLY,
|
|
0400, &fd)))
|
|
{
|
|
rv = AutoRegisterComponentsList(inDirSpec, fd,
|
|
aLeftovers, aDeferred);
|
|
PR_Close(fd);
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsISimpleEnumerator> entries;
|
|
rv = inDirSpec->GetDirectoryEntries(getter_AddRefs(entries));
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
PRBool hasMore;
|
|
nsCOMPtr<nsISupports> elem;
|
|
|
|
while (NS_SUCCEEDED(entries->HasMoreElements(&hasMore)) && hasMore) {
|
|
entries->GetNext(getter_AddRefs(elem));
|
|
nsCOMPtr<nsILocalFile> lf(do_QueryInterface(elem));
|
|
if (!lf) {
|
|
NS_ERROR("Directory enumerator misbehaving");
|
|
continue;
|
|
}
|
|
|
|
PRBool isDir;
|
|
rv = lf->IsDirectory(&isDir);
|
|
if (NS_FAILED(rv))
|
|
continue;
|
|
|
|
if (isDir)
|
|
AutoRegisterDirectory(lf, aLeftovers, aDeferred);
|
|
else {
|
|
rv = AutoRegisterComponent(lf, aDeferred);
|
|
if (NS_FAILED(rv))
|
|
aLeftovers.AppendObject(lf);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsComponentManagerImpl::AutoRegisterComponentsList(nsIFile* inDir,
|
|
PRFileDesc* fd,
|
|
nsCOMArray<nsILocalFile>& aLeftovers,
|
|
nsTArray<DeferredModule>& aDeferred)
|
|
{
|
|
PRFileInfo info;
|
|
if (PR_SUCCESS != PR_GetOpenFileInfo(fd, &info))
|
|
return NS_ErrorAccordingToNSPR();
|
|
|
|
nsAutoArrayPtr<char> buf(new char[info.size + 1]);
|
|
if (!buf)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
PRInt32 read = 0;
|
|
while (read < info.size) {
|
|
PRInt32 n = PR_Read(fd, buf + read, info.size - read);
|
|
if (n < 0)
|
|
return NS_ErrorAccordingToNSPR();
|
|
|
|
read += n;
|
|
if (n == 0)
|
|
break;
|
|
}
|
|
|
|
buf[read] = '\0';
|
|
char* c = buf;
|
|
while (char *token = NS_strtok(kNL, &c)) {
|
|
if (token[0] == '#')
|
|
continue;
|
|
|
|
nsCOMPtr<nsIFile> component;
|
|
inDir->Clone(getter_AddRefs(component));
|
|
if (!component)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
nsCOMPtr<nsILocalFile> lfcomponent = do_QueryInterface(component);
|
|
lfcomponent->AppendNative(nsDependentCString(token));
|
|
|
|
nsresult rv = AutoRegisterComponent(lfcomponent, aDeferred);
|
|
if (NS_FAILED(rv))
|
|
aLeftovers.AppendObject(lfcomponent);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
nsComponentManagerImpl::AutoRegisterComponent(PRInt32 unused,
|
|
nsIFile *component)
|
|
{
|
|
nsCOMPtr<nsILocalFile> lf(do_QueryInterface(component));
|
|
if (!lf)
|
|
return NS_NOINTERFACE;
|
|
|
|
GetAllLoaders();
|
|
|
|
nsTArray<DeferredModule> deferred;
|
|
|
|
nsresult rv = AutoRegisterComponent(lf, deferred);
|
|
if (deferred.Length())
|
|
return NS_ERROR_FACTORY_REGISTER_AGAIN;
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsComponentManagerImpl::AutoRegisterComponent(nsILocalFile* aComponentFile,
|
|
nsTArray<DeferredModule> &aDeferred,
|
|
LoaderType minLoader)
|
|
{
|
|
nsresult rv;
|
|
|
|
NS_ASSERTION(minLoader < GetLoaderCount(), "Bad minLoader");
|
|
|
|
nsCAutoString registryLocation;
|
|
rv = RegistryLocationForFile(aComponentFile, registryLocation);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
const nsDependentCSubstring extension = StringTail(registryLocation, 4);
|
|
if (extension.LowerCaseEqualsLiteral(".dat") ||
|
|
extension.LowerCaseEqualsLiteral(".xpt"))
|
|
return NS_OK;
|
|
|
|
nsCOMPtr<nsIHashable> lfhash(do_QueryInterface(aComponentFile));
|
|
if (!lfhash) {
|
|
NS_ERROR("localfile not implementing nsIHashable!");
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
PRInt64 modTime = 0;
|
|
PRInt64 cachedModTime;
|
|
|
|
// If it's in the cache, it should be valid.
|
|
// The cache file is removed if files are modified.
|
|
if (mAutoRegEntries.Get(lfhash, &cachedModTime)) {
|
|
#ifdef DEBUG
|
|
if (NS_SUCCEEDED(aComponentFile->GetLastModifiedTime(&modTime))
|
|
&& cachedModTime == modTime) {
|
|
return NS_OK;
|
|
}
|
|
#else
|
|
return NS_OK;
|
|
#endif
|
|
}
|
|
|
|
const char *registryType = nsnull;
|
|
|
|
nsCOMPtr<nsIModule> module;
|
|
|
|
if (minLoader == NS_LOADER_TYPE_NATIVE) {
|
|
rv = mNativeModuleLoader.LoadModule(aComponentFile,
|
|
getter_AddRefs(module));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
if (!module) {
|
|
NS_ERROR("Module loader succeeded without returning a module");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
registryType = nativeComponentType;
|
|
}
|
|
|
|
minLoader = 0;
|
|
}
|
|
|
|
if (!registryType) {
|
|
for (; minLoader < GetLoaderCount(); ++minLoader) {
|
|
nsIModuleLoader* loader = LoaderForType(minLoader);
|
|
if (!loader)
|
|
continue;
|
|
|
|
rv = loader->LoadModule(aComponentFile, getter_AddRefs(module));
|
|
if (NS_SUCCEEDED(rv)) {
|
|
if (!module) {
|
|
NS_ERROR("Module loader succeeded without returning a module.");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
registryType = StringForLoaderType(minLoader);
|
|
break;
|
|
}
|
|
}
|
|
if (!registryType) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
rv = module->RegisterSelf(this, aComponentFile, registryLocation.get(),
|
|
registryType);
|
|
if (NS_ERROR_FACTORY_REGISTER_AGAIN == rv) {
|
|
DeferredModule *d = aDeferred.AppendElement();
|
|
if (!d)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
d->type = registryType;
|
|
d->file = aComponentFile;
|
|
d->location = registryLocation;
|
|
d->module = module;
|
|
d->modTime = modTime;
|
|
return NS_OK;
|
|
}
|
|
|
|
if (NS_SUCCEEDED(rv) && modTime != 0)
|
|
mAutoRegEntries.Put(lfhash, modTime);
|
|
|
|
return rv;
|
|
}
|
|
|
|
void
|
|
nsComponentManagerImpl::LoadLeftoverComponents(
|
|
nsCOMArray<nsILocalFile> &aLeftovers,
|
|
nsTArray<DeferredModule> &aDeferred,
|
|
LoaderType minLoader)
|
|
{
|
|
NS_ASSERTION(minLoader >= GetLoaderCount(), "Corrupted minLoader");
|
|
|
|
GetAllLoaders();
|
|
|
|
// If there aren't any new loaders found since we tried this last, there's
|
|
// nothing left to do.
|
|
if (GetLoaderCount() == minLoader)
|
|
return;
|
|
|
|
LoaderType curLoader = GetLoaderCount();
|
|
|
|
for (PRInt32 i = 0; i < aLeftovers.Count(); ) {
|
|
nsresult rv = AutoRegisterComponent(aLeftovers[i], aDeferred,
|
|
minLoader);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
aLeftovers.RemoveObjectAt(i);
|
|
}
|
|
else {
|
|
++i;
|
|
}
|
|
}
|
|
if (aLeftovers.Count())
|
|
// recursively try this again until there are no new loaders found
|
|
LoadLeftoverComponents(aLeftovers, aDeferred, curLoader);
|
|
}
|
|
|
|
void
|
|
nsComponentManagerImpl::LoadDeferredModules(nsTArray<DeferredModule> &aDeferred)
|
|
{
|
|
// We keep looping through deferred components until one of
|
|
// 1) they're all gone
|
|
// 2) we loop through and none of them succeed
|
|
|
|
PRUint32 lastCount = PR_UINT32_MAX;
|
|
while (aDeferred.Length() > 0 &&
|
|
lastCount > aDeferred.Length()) {
|
|
|
|
lastCount = aDeferred.Length();
|
|
|
|
for (PRInt32 i = 0; i < aDeferred.Length(); ) {
|
|
DeferredModule &d = aDeferred[i];
|
|
nsresult rv = d.module->RegisterSelf(this,
|
|
d.file,
|
|
d.location.get(),
|
|
d.type);
|
|
if (NS_SUCCEEDED(rv) && d.modTime != 0) {
|
|
nsCOMPtr<nsIHashable> lfhash(do_QueryInterface(d.file));
|
|
if (lfhash)
|
|
mAutoRegEntries.Put(lfhash, d.modTime);
|
|
}
|
|
|
|
if (rv != NS_ERROR_FACTORY_REGISTER_AGAIN) {
|
|
aDeferred.RemoveElementAt(i);
|
|
}
|
|
else {
|
|
++i;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::AutoUnregisterComponent(PRInt32 /* unused */,
|
|
nsIFile *component)
|
|
{
|
|
nsresult rv;
|
|
|
|
GetAllLoaders();
|
|
|
|
nsCAutoString location;
|
|
rv = RegistryLocationForFile(component, location);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
nsCOMPtr<nsILocalFile> lf(do_QueryInterface(component));
|
|
if (!lf)
|
|
return NS_NOINTERFACE;
|
|
|
|
nsCOMPtr<nsIModule> module;
|
|
rv = mNativeModuleLoader.LoadModule(lf, getter_AddRefs(module));
|
|
if (NS_FAILED(rv)) {
|
|
for (LoaderType i = 0; i < mLoaderData.Length(); ++i) {
|
|
nsIModuleLoader* loader = LoaderForType(i);
|
|
if (!loader)
|
|
continue;
|
|
|
|
if (NS_SUCCEEDED(loader->LoadModule(lf, getter_AddRefs(module))) &&
|
|
module) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!module)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
rv = module->UnregisterSelf(this, lf, location.get());
|
|
|
|
nsCOMPtr<nsIHashable> lfhash(do_QueryInterface(lf));
|
|
mAutoRegEntries.Remove(lfhash);
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::IsRegistered(const nsCID &aClass,
|
|
PRBool *aRegistered)
|
|
{
|
|
if (!aRegistered)
|
|
{
|
|
NS_ERROR("null ptr");
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
*aRegistered = (nsnull != GetFactoryEntry(aClass));
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
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 = static_cast<nsIEnumerator*>(aEnum);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
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 = static_cast<nsIEnumerator*>(aEnum);
|
|
return NS_OK;
|
|
}
|
|
|
|
// nsIComponentRegistrar
|
|
|
|
static void
|
|
RegisterStaticModule(const char *key, nsIModule* module,
|
|
nsTArray<DeferredModule> &deferred)
|
|
{
|
|
nsresult rv = module->
|
|
RegisterSelf(nsComponentManagerImpl::gComponentManager,
|
|
nsnull, key, staticComponentType);
|
|
|
|
if (NS_ERROR_FACTORY_REGISTER_AGAIN == rv) {
|
|
DeferredModule *d = deferred.AppendElement();
|
|
if (d) {
|
|
d->type = staticComponentType;
|
|
d->location = key;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
ReportLoadFailure(nsIFile* aFile, nsIConsoleService* aCS)
|
|
{
|
|
nsAutoString message;
|
|
aFile->GetPath(message);
|
|
message.Insert(NS_LITERAL_STRING("Failed to load XPCOM component: "), 0);
|
|
|
|
aCS->LogStringMessage(message.get());
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsComponentManagerImpl::AutoRegister(nsIFile *aSpec)
|
|
{
|
|
nsresult rv;
|
|
|
|
if (!mCategoryManager) {
|
|
mCategoryManager = do_GetService(NS_CATEGORYMANAGER_CONTRACTID, &rv);
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
}
|
|
|
|
GetAllLoaders();
|
|
|
|
// Notify observers of xpcom autoregistration start
|
|
NS_CreateServicesFromCategory(NS_XPCOM_AUTOREGISTRATION_OBSERVER_ID,
|
|
aSpec, "start");
|
|
|
|
nsCOMArray<nsILocalFile> leftovers;
|
|
nsTArray<DeferredModule> deferred;
|
|
|
|
if (!aSpec) {
|
|
mStaticModuleLoader.EnumerateModules(RegisterStaticModule,
|
|
deferred);
|
|
|
|
// Builtin component loaders (xpconnect!) can be static modules.
|
|
// Set them up now, so that JS components don't go into
|
|
// the leftovers list.
|
|
GetAllLoaders();
|
|
}
|
|
|
|
LoaderType curLoader = GetLoaderCount();
|
|
|
|
if (aSpec) {
|
|
rv = AutoRegisterImpl(aSpec, leftovers, deferred);
|
|
}
|
|
else {
|
|
// register static components, then GRE components, then
|
|
// NS_XPCOM_COMPONENT_DIR, then NS_XPCOM_COMPONENT_DIR_LIST
|
|
|
|
PRBool equals = PR_FALSE;
|
|
|
|
if (mGREComponentsDir &&
|
|
NS_SUCCEEDED(mGREComponentsDir->Equals(mComponentsDir, &equals)) &&
|
|
!equals) {
|
|
rv = AutoRegisterImpl(mGREComponentsDir, leftovers, deferred);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("Couldn't register mGREComponentsDir");
|
|
}
|
|
}
|
|
|
|
rv = AutoRegisterImpl(mComponentsDir, leftovers, deferred);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("Couldn't register mComponentsDir");
|
|
}
|
|
|
|
nsCOMPtr<nsISimpleEnumerator> dirList;
|
|
rv = nsDirectoryService::gService->Get(NS_XPCOM_COMPONENT_DIR_LIST,
|
|
NS_GET_IID(nsISimpleEnumerator),
|
|
getter_AddRefs(dirList));
|
|
if (NS_SUCCEEDED(rv) && dirList) {
|
|
PRBool hasMore;
|
|
nsCOMPtr<nsISupports> elem;
|
|
|
|
while (NS_SUCCEEDED(dirList->HasMoreElements(&hasMore)) &&
|
|
hasMore) {
|
|
dirList->GetNext(getter_AddRefs(elem));
|
|
nsCOMPtr<nsIFile> dir(do_QueryInterface(elem));
|
|
if (dir) {
|
|
AutoRegisterImpl(dir, leftovers, deferred);
|
|
}
|
|
}
|
|
}
|
|
|
|
rv = NS_OK;
|
|
}
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// We may have found new component loaders in the meantime, try to go
|
|
// back and load the leftovers.
|
|
if (leftovers.Count())
|
|
LoadLeftoverComponents(leftovers, deferred, curLoader);
|
|
|
|
// If a module said its loading should be deferred, register it now
|
|
if (deferred.Length())
|
|
LoadDeferredModules(deferred);
|
|
|
|
nsCOMPtr<nsIConsoleService>
|
|
cs(do_GetService(NS_CONSOLESERVICE_CONTRACTID));
|
|
|
|
if (cs) {
|
|
for (PRInt32 i = 0; i < leftovers.Count(); ++i) {
|
|
ReportLoadFailure(leftovers[i], cs);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Notify observers of xpcom autoregistration completion
|
|
NS_CreateServicesFromCategory(NS_XPCOM_AUTOREGISTRATION_OBSERVER_ID,
|
|
aSpec,
|
|
"end");
|
|
|
|
if (mRegistryDirty)
|
|
WritePersistentRegistry();
|
|
|
|
return rv;
|
|
}
|
|
|
|
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)
|
|
{
|
|
nsCAutoString registryName;
|
|
|
|
if (!loaderStr)
|
|
{
|
|
nsresult rv = RegistryLocationForFile(aFile, 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)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aClass);
|
|
nsFactoryEntry *entry = GetFactoryEntry(aClass, strlen(aClass));
|
|
|
|
if (entry)
|
|
*_retval = PR_TRUE;
|
|
else
|
|
*_retval = PR_FALSE;
|
|
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 = 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 = 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;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// nsFactoryEntry
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
nsFactoryEntry::nsFactoryEntry(const nsCID &aClass,
|
|
LoaderType aLoaderType,
|
|
const char *aLocationKey,
|
|
nsFactoryEntry *aParent) :
|
|
mCid(aClass),
|
|
mLoaderType(aLoaderType),
|
|
mLocationKey(
|
|
ArenaStrdup(aLocationKey,
|
|
&nsComponentManagerImpl::gComponentManager->mArena)),
|
|
mParent(aParent)
|
|
{
|
|
}
|
|
|
|
void
|
|
nsFactoryEntry::ReInit(LoaderType aLoaderType,
|
|
const char *aLocationKey)
|
|
{
|
|
mLoaderType = aLoaderType;
|
|
|
|
if (!mLocationKey || strcmp(mLocationKey, aLocationKey)) {
|
|
mLocationKey =
|
|
ArenaStrdup(aLocationKey,
|
|
&nsComponentManagerImpl::gComponentManager->mArena);
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
nsFactoryEntry::GetFactory(nsIFactory **aFactory)
|
|
{
|
|
if (!mFactory) {
|
|
nsresult rv;
|
|
|
|
if (mLoaderType == NS_LOADER_TYPE_INVALID)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
nsCOMPtr<nsIModule> module;
|
|
|
|
if (mLoaderType == NS_LOADER_TYPE_STATIC) {
|
|
rv = nsComponentManagerImpl::gComponentManager->
|
|
mStaticModuleLoader.
|
|
GetModuleFor(mLocationKey,
|
|
getter_AddRefs(module));
|
|
}
|
|
else {
|
|
nsCOMPtr<nsILocalFile> moduleFile;
|
|
rv = nsComponentManagerImpl::gComponentManager->
|
|
FileForRegistryLocation(nsDependentCString(mLocationKey),
|
|
getter_AddRefs(moduleFile));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsIModuleLoader* loader =
|
|
nsComponentManagerImpl::gComponentManager->
|
|
LoaderForType(mLoaderType);
|
|
if (!loader)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
rv = loader->LoadModule(moduleFile,
|
|
getter_AddRefs(module));
|
|
}
|
|
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
if (!module) {
|
|
NS_ERROR("Module returned success but no module!");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
rv = module->
|
|
GetClassObject(nsComponentManagerImpl::gComponentManager,
|
|
mCid,
|
|
NS_GET_IID(nsIFactory),
|
|
getter_AddRefs(mFactory));
|
|
if (NS_FAILED(rv))
|
|
return rv;
|
|
|
|
NS_ASSERTION(mFactory,
|
|
"Loader says it succeeded; got null factory!");
|
|
if (!mFactory)
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
*aFactory = mFactory.get();
|
|
NS_ADDREF(*aFactory);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsFactoryEntry::~nsFactoryEntry()
|
|
{
|
|
// nsFactoryEntry is arena-allocated. So we don't delete it;
|
|
// call the destructor by hand.
|
|
|
|
if (mParent)
|
|
mParent->~nsFactoryEntry();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
// Static Access Functions
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
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 = 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 = 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 = static_cast<nsIComponentRegistrar*>
|
|
(nsComponentManagerImpl::gComponentManager);
|
|
NS_IF_ADDREF(*result);
|
|
return NS_OK;
|
|
}
|