forked from mirrors/gecko-dev
134 lines
4.6 KiB
C++
134 lines
4.6 KiB
C++
/* ***** 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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* Christopher Seawood <cls@seawood.org>
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* Doug Turner <dougt@netscape.com>
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* Chris Waterson <waterson@netscape.com>
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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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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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#line 27 "nsMetaModule.cpp.in"
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#include "nsError.h"
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#include "nsIModule.h"
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#include "nsIFile.h"
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#include "nsIGenericFactory.h"
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#include "prmem.h"
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%DECLARE_SUBMODULE_INFOS%
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#line 35 "nsMetaModule.cpp.in"
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static nsModuleInfo* gSubModules[] = {
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%SUBMODULE_INFOS%
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#line 39 "nsMetaModule.cpp.in"
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};
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#define NUM_SUB_MODULES (sizeof(gSubModules) / sizeof(gSubModules[0]))
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static nsModuleComponentInfo* gComponentInfo;
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static PRBool gInitialized = PR_FALSE;
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PR_STATIC_CALLBACK(nsresult)
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Initialize(nsIModule *self)
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{
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if (! gInitialized) {
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// Run the ctor for each sub-module
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gInitialized = PR_TRUE;
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nsModuleInfo** module = gSubModules;
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nsModuleInfo** limit = module + NUM_SUB_MODULES;
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for ( ; module < limit; ++module) {
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if ((*module)->mCtor)
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((*module)->mCtor)(self);
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}
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}
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return NS_OK;
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}
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PR_STATIC_CALLBACK(void)
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Shutdown(nsIModule *self)
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{
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if (gInitialized) {
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// Run the dtor for each sub-module
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gInitialized = PR_FALSE;
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nsModuleInfo** module = gSubModules;
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nsModuleInfo** limit = module + NUM_SUB_MODULES;
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for ( ; module < limit; ++module) {
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if ((*module)->mDtor)
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((*module)->mDtor)(self);
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}
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}
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}
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extern "C" NS_EXPORT nsresult
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nsMetaModule_nsGetModule(nsIComponentManager *servMgr,
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nsIFile *location,
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nsIModule **result)
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{
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// Count the number of components contained in all of the
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// sub-modules
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nsModuleInfo** info = gSubModules;
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nsModuleInfo** limit = info + NUM_SUB_MODULES;
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PRUint32 count = 0;
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for ( ; info < limit; ++info)
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count += (*info)->mCount;
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// Allocate an nsModuleComponentInfo array large enough to contain
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// all of them. This will be permanently leaked.
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gComponentInfo = new nsModuleComponentInfo[count];
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if (! gComponentInfo)
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return NS_ERROR_OUT_OF_MEMORY;
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// Copy the module component info into the contiguous array
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nsModuleComponentInfo *comps = gComponentInfo;
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for (info = gSubModules; info < limit; ++info) {
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PRUint32 n = (*info)->mCount;
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::memcpy(comps, (*info)->mComponents, sizeof(nsModuleComponentInfo) * n);
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comps += n;
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}
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// Dummy up an nsModuleInfo struct to register us as a generic
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// module that contains all our sub-module's components.
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nsModuleInfo metainfo;
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memset(&metainfo, 0, sizeof(metainfo));
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metainfo.mVersion = NS_MODULEINFO_VERSION;
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metainfo.mModuleName = META_MODULE " meta module";
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metainfo.mComponents = gComponentInfo;
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metainfo.mCount = count;
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metainfo.mCtor = Initialize;
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metainfo.mDtor = Shutdown;
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return NS_NewGenericModule2(&metainfo, result);
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}
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