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ModuleUtils.h
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ModuleUtils.h
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Benjamin Smedberg <benjamin@smedbergs.us>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef mozilla_GenericModule_h
#define mozilla_GenericModule_h
#include "mozilla/Module.h"
#define NS_GENERIC_FACTORY_CONSTRUCTOR(_InstanceClass) \
static nsresult \
_InstanceClass##Constructor(nsISupports *aOuter, REFNSIID aIID, \
void **aResult) \
{ \
nsresult rv; \
\
_InstanceClass * inst; \
\
*aResult = NULL; \
if (NULL != aOuter) { \
rv = NS_ERROR_NO_AGGREGATION; \
return rv; \
} \
\
inst = new _InstanceClass(); \
if (NULL == inst) { \
rv = NS_ERROR_OUT_OF_MEMORY; \
return rv; \
} \
NS_ADDREF(inst); \
rv = inst->QueryInterface(aIID, aResult); \
NS_RELEASE(inst); \
\
return rv; \
}
#define NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(_InstanceClass, _InitMethod) \
static nsresult \
_InstanceClass##Constructor(nsISupports *aOuter, REFNSIID aIID, \
void **aResult) \
{ \
nsresult rv; \
\
_InstanceClass * inst; \
\
*aResult = NULL; \
if (NULL != aOuter) { \
rv = NS_ERROR_NO_AGGREGATION; \
return rv; \
} \
\
inst = new _InstanceClass(); \
if (NULL == inst) { \
rv = NS_ERROR_OUT_OF_MEMORY; \
return rv; \
} \
NS_ADDREF(inst); \
rv = inst->_InitMethod(); \
if(NS_SUCCEEDED(rv)) { \
rv = inst->QueryInterface(aIID, aResult); \
} \
NS_RELEASE(inst); \
\
return rv; \
}
// 'Constructor' that uses an existing getter function that gets a singleton.
// NOTE: assumes that getter does an AddRef - so additional AddRef is not done.
#define NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(_InstanceClass, _GetterProc) \
static nsresult \
_InstanceClass##Constructor(nsISupports *aOuter, REFNSIID aIID, \
void **aResult) \
{ \
nsresult rv; \
\
_InstanceClass * inst; \
\
*aResult = NULL; \
if (NULL != aOuter) { \
rv = NS_ERROR_NO_AGGREGATION; \
return rv; \
} \
\
inst = already_AddRefed<_InstanceClass>(_GetterProc()).get(); \
if (NULL == inst) { \
rv = NS_ERROR_OUT_OF_MEMORY; \
return rv; \
} \
/* NS_ADDREF(inst); */ \
rv = inst->QueryInterface(aIID, aResult); \
NS_RELEASE(inst); \
\
return rv; \
}
#ifndef MOZILLA_INTERNAL_API
#include "nsIModule.h"
#include "nsISupportsUtils.h"
namespace mozilla {
class GenericModule : public nsIModule
{
public:
GenericModule(const mozilla::Module* aData)
: mData(aData)
{
}
NS_DECL_ISUPPORTS
NS_DECL_NSIMODULE
private:
const mozilla::Module* mData;
};
} // namespace mozilla
#define NS_IMPL_MOZILLA192_NSGETMODULE(module) \
extern "C" NS_EXPORT nsresult \
NSGetModule(nsIComponentManager* aCompMgr, \
nsIFile* aLocation, \
nsIModule** aResult) \
{ \
*aResult = new mozilla::GenericModule(module); \
NS_ADDREF(*aResult); \
return NS_OK; \
}
#endif
#endif // mozilla_GenericModule_h