gecko-dev/xpcom/threads/nsEventQueueUtils.h

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/* ***** 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.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Darin Fisher <darin@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 nsEventQueueUtils_h__
#define nsEventQueueUtils_h__
#include "nsIEventQueueService.h"
#include "nsIServiceManager.h"
#include "nsCOMPtr.h"
inline nsresult
NS_GetEventQueueService(nsIEventQueueService **result)
{
static NS_DEFINE_CID(kEventQueueServiceCID, NS_EVENTQUEUESERVICE_CID);
return CallGetService(kEventQueueServiceCID, result);
}
inline nsresult
NS_GetCurrentEventQ(nsIEventQueue **result,
nsIEventQueueService *serv = nsnull)
{
nsCOMPtr<nsIEventQueueService> eqs;
if (!serv) {
nsresult rv = NS_GetEventQueueService(getter_AddRefs(eqs));
if (NS_FAILED(rv)) return rv;
serv = eqs;
}
return serv->GetThreadEventQueue(NS_CURRENT_THREAD, result);
}
inline nsresult
NS_GetMainEventQ(nsIEventQueue **result,
nsIEventQueueService *serv = nsnull)
{
nsCOMPtr<nsIEventQueueService> eqs;
if (!serv) {
nsresult rv = NS_GetEventQueueService(getter_AddRefs(eqs));
if (NS_FAILED(rv)) return rv;
serv = eqs;
}
return serv->GetThreadEventQueue(NS_UI_THREAD, result);
}
#endif // !nsEventQueueUtils_h__