gecko/toolkit/components/places/nsPlacesMacros.h
2012-05-21 12:12:37 +01:00

40 lines
2.6 KiB
C

/* -*- 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/. */
#include "prtypes.h"
// Call a method on each observer in a category cache, then call the same
// method on the observer array.
#define NOTIFY_OBSERVERS(canFire, cache, array, type, method) \
PR_BEGIN_MACRO \
if (canFire) { \
const nsCOMArray<type> &entries = cache.GetEntries(); \
for (PRInt32 idx = 0; idx < entries.Count(); ++idx) \
entries[idx]->method; \
ENUMERATE_WEAKARRAY(array, type, method) \
} \
PR_END_MACRO;
#define PLACES_FACTORY_SINGLETON_IMPLEMENTATION(_className, _sInstance) \
_className * _className::_sInstance = nsnull; \
\
_className * \
_className::GetSingleton() \
{ \
if (_sInstance) { \
NS_ADDREF(_sInstance); \
return _sInstance; \
} \
_sInstance = new _className(); \
if (_sInstance) { \
NS_ADDREF(_sInstance); \
if (NS_FAILED(_sInstance->Init())) { \
NS_RELEASE(_sInstance); \
_sInstance = nsnull; \
} \
} \
return _sInstance; \
}