48dfff6011
Patch by alfred.peng@sun.com. dbaron: review+ roc: superreview+ git-svn-id: svn://10.0.0.236/trunk@201088 18797224-902f-48f8-a5cc-f745e15eee43
131 lines
4.0 KiB
C++
131 lines
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsToolkit.h"
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#include "nscore.h"
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#include "nsWidgetAtoms.h"
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//
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// Static thread local storage index of the Toolkit
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// object associated with a given thread...
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//
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static PRUintn gToolkitTLSIndex = 0;
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NS_IMPL_ISUPPORTS1(nsToolkit,nsIToolkit)
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//-------------------------------------------------------------------------
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//
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// constructor
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//
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//-------------------------------------------------------------------------
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nsToolkit::nsToolkit()
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{
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}
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//-------------------------------------------------------------------------
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//
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// destructor
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//
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//-------------------------------------------------------------------------
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nsToolkit::~nsToolkit()
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{
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// Remove the TLS reference to the toolkit...
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PR_SetThreadPrivate(gToolkitTLSIndex, nsnull);
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}
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//-------------------------------------------------------------------------
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//
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//
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//-------------------------------------------------------------------------
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NS_METHOD nsToolkit::Init(PRThread *aThread)
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{
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nsWidgetAtoms::RegisterAtoms();
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return NS_OK;
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}
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//-------------------------------------------------------------------------
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//
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// Return the nsIToolkit for the current thread. If a toolkit does not
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// yet exist, then one will be created...
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//
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//-------------------------------------------------------------------------
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NS_METHOD NS_GetCurrentToolkit(nsIToolkit* *aResult)
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{
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nsIToolkit* toolkit = nsnull;
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nsresult rv = NS_OK;
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PRStatus status;
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// Create the TLS index the first time through...
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if (0 == gToolkitTLSIndex) {
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status = PR_NewThreadPrivateIndex(&gToolkitTLSIndex, NULL);
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if (PR_FAILURE == status) {
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rv = NS_ERROR_FAILURE;
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}
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}
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if (NS_SUCCEEDED(rv)) {
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toolkit = (nsIToolkit*)PR_GetThreadPrivate(gToolkitTLSIndex);
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//
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// Create a new toolkit for this thread...
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//
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if (!toolkit) {
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toolkit = new nsToolkit();
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if (!toolkit) {
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rv = NS_ERROR_OUT_OF_MEMORY;
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} else {
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NS_ADDREF(toolkit);
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toolkit->Init(PR_GetCurrentThread());
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//
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// The reference stored in the TLS is weak. It is removed in the
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// nsToolkit destructor...
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//
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PR_SetThreadPrivate(gToolkitTLSIndex, (void*)toolkit);
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}
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} else {
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NS_ADDREF(toolkit);
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}
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*aResult = toolkit;
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}
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return rv;
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}
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