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Diffstat (limited to '')
| -rw-r--r-- | toolkit/components/places/nsPlacesMacros.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/toolkit/components/places/nsPlacesMacros.h b/toolkit/components/places/nsPlacesMacros.h new file mode 100644 index 0000000000..9d192eddb6 --- /dev/null +++ b/toolkit/components/places/nsPlacesMacros.h @@ -0,0 +1,23 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#define PLACES_FACTORY_SINGLETON_IMPLEMENTATION(_className, _sInstance) \ + _className* _className::_sInstance = nullptr; \ + \ + already_AddRefed<_className> _className::GetSingleton() { \ + if (_sInstance) { \ + RefPtr<_className> ret = _sInstance; \ + return ret.forget(); \ + } \ + _sInstance = new _className(); \ + RefPtr<_className> ret = _sInstance; \ + if (NS_FAILED(_sInstance->Init())) { \ + /* Null out ret before _sInstance so the destructor doesn't assert */ \ + ret = nullptr; \ + _sInstance = nullptr; \ + return nullptr; \ + } \ + return ret.forget(); \ + } |