1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/xpcom/components/ModuleUtils.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,135 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef mozilla_GenericModule_h
1.10 +#define mozilla_GenericModule_h
1.11 +
1.12 +#include "mozilla/Attributes.h"
1.13 +#include "mozilla/Module.h"
1.14 +
1.15 +#define NS_GENERIC_FACTORY_CONSTRUCTOR(_InstanceClass) \
1.16 +static nsresult \
1.17 +_InstanceClass##Constructor(nsISupports *aOuter, REFNSIID aIID, \
1.18 + void **aResult) \
1.19 +{ \
1.20 + nsresult rv; \
1.21 + \
1.22 + _InstanceClass * inst; \
1.23 + \
1.24 + *aResult = nullptr; \
1.25 + if (nullptr != aOuter) { \
1.26 + rv = NS_ERROR_NO_AGGREGATION; \
1.27 + return rv; \
1.28 + } \
1.29 + \
1.30 + inst = new _InstanceClass(); \
1.31 + if (nullptr == inst) { \
1.32 + rv = NS_ERROR_OUT_OF_MEMORY; \
1.33 + return rv; \
1.34 + } \
1.35 + NS_ADDREF(inst); \
1.36 + rv = inst->QueryInterface(aIID, aResult); \
1.37 + NS_RELEASE(inst); \
1.38 + \
1.39 + return rv; \
1.40 +}
1.41 +
1.42 +#define NS_GENERIC_FACTORY_CONSTRUCTOR_INIT(_InstanceClass, _InitMethod) \
1.43 +static nsresult \
1.44 +_InstanceClass##Constructor(nsISupports *aOuter, REFNSIID aIID, \
1.45 + void **aResult) \
1.46 +{ \
1.47 + nsresult rv; \
1.48 + \
1.49 + _InstanceClass * inst; \
1.50 + \
1.51 + *aResult = nullptr; \
1.52 + if (nullptr != aOuter) { \
1.53 + rv = NS_ERROR_NO_AGGREGATION; \
1.54 + return rv; \
1.55 + } \
1.56 + \
1.57 + inst = new _InstanceClass(); \
1.58 + if (nullptr == inst) { \
1.59 + rv = NS_ERROR_OUT_OF_MEMORY; \
1.60 + return rv; \
1.61 + } \
1.62 + NS_ADDREF(inst); \
1.63 + rv = inst->_InitMethod(); \
1.64 + if(NS_SUCCEEDED(rv)) { \
1.65 + rv = inst->QueryInterface(aIID, aResult); \
1.66 + } \
1.67 + NS_RELEASE(inst); \
1.68 + \
1.69 + return rv; \
1.70 +}
1.71 +
1.72 +// 'Constructor' that uses an existing getter function that gets a singleton.
1.73 +// NOTE: assumes that getter does an AddRef - so additional AddRef is not done.
1.74 +#define NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(_InstanceClass, _GetterProc) \
1.75 +static nsresult \
1.76 +_InstanceClass##Constructor(nsISupports *aOuter, REFNSIID aIID, \
1.77 + void **aResult) \
1.78 +{ \
1.79 + nsresult rv; \
1.80 + \
1.81 + _InstanceClass * inst; \
1.82 + \
1.83 + *aResult = nullptr; \
1.84 + if (nullptr != aOuter) { \
1.85 + rv = NS_ERROR_NO_AGGREGATION; \
1.86 + return rv; \
1.87 + } \
1.88 + \
1.89 + inst = already_AddRefed<_InstanceClass>(_GetterProc()).take(); \
1.90 + if (nullptr == inst) { \
1.91 + rv = NS_ERROR_OUT_OF_MEMORY; \
1.92 + return rv; \
1.93 + } \
1.94 + /* NS_ADDREF(inst); */ \
1.95 + rv = inst->QueryInterface(aIID, aResult); \
1.96 + NS_RELEASE(inst); \
1.97 + \
1.98 + return rv; \
1.99 +}
1.100 +
1.101 +#ifndef MOZILLA_INTERNAL_API
1.102 +
1.103 +#include "nsIModule.h"
1.104 +#include "nsISupportsUtils.h"
1.105 +
1.106 +namespace mozilla {
1.107 +
1.108 +class GenericModule MOZ_FINAL : public nsIModule
1.109 +{
1.110 +public:
1.111 + GenericModule(const mozilla::Module* aData)
1.112 + : mData(aData)
1.113 + {
1.114 + }
1.115 +
1.116 + NS_DECL_THREADSAFE_ISUPPORTS
1.117 + NS_DECL_NSIMODULE
1.118 +
1.119 +private:
1.120 + const mozilla::Module* mData;
1.121 +};
1.122 +
1.123 +} // namespace mozilla
1.124 +
1.125 +#define NS_IMPL_MOZILLA192_NSGETMODULE(module) \
1.126 +extern "C" NS_EXPORT nsresult \
1.127 +NSGetModule(nsIComponentManager* aCompMgr, \
1.128 + nsIFile* aLocation, \
1.129 + nsIModule** aResult) \
1.130 +{ \
1.131 + *aResult = new mozilla::GenericModule(module); \
1.132 + NS_ADDREF(*aResult); \
1.133 + return NS_OK; \
1.134 +}
1.135 +
1.136 +#endif
1.137 +
1.138 +#endif // mozilla_GenericModule_h
