зеркало из https://github.com/mozilla/pjs.git
121 строка
3.6 KiB
C++
121 строка
3.6 KiB
C++
/* ***** 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 HTML Parser C++ Translator code.
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*
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* The Initial Developer of the Original Code is
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* Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Henri Sivonen <hsivonen@iki.fi>
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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 "nsHtml5OwningUTF16Buffer.h"
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nsHtml5OwningUTF16Buffer::nsHtml5OwningUTF16Buffer(PRUnichar* aBuffer)
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: nsHtml5UTF16Buffer(aBuffer, 0),
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next(nsnull),
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key(nsnull)
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{
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MOZ_COUNT_CTOR(nsHtml5OwningUTF16Buffer);
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}
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nsHtml5OwningUTF16Buffer::nsHtml5OwningUTF16Buffer(void* aKey)
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: nsHtml5UTF16Buffer(nsnull, 0),
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next(nsnull),
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key(aKey)
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{
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MOZ_COUNT_CTOR(nsHtml5OwningUTF16Buffer);
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}
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nsHtml5OwningUTF16Buffer::~nsHtml5OwningUTF16Buffer()
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{
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MOZ_COUNT_DTOR(nsHtml5OwningUTF16Buffer);
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DeleteBuffer();
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// This is to avoid dtor recursion on 'next', bug 706932.
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nsRefPtr<nsHtml5OwningUTF16Buffer> tail;
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tail.swap(next);
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while (tail && tail->mRefCnt == 1) {
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nsRefPtr<nsHtml5OwningUTF16Buffer> tmp;
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tmp.swap(tail->next);
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tail.swap(tmp);
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}
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}
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// static
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already_AddRefed<nsHtml5OwningUTF16Buffer>
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nsHtml5OwningUTF16Buffer::FalliblyCreate(PRInt32 aLength)
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{
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const mozilla::fallible_t fallible = mozilla::fallible_t();
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PRUnichar* newBuf = new (fallible) PRUnichar[aLength];
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if (!newBuf) {
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return nsnull;
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}
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nsRefPtr<nsHtml5OwningUTF16Buffer> newObj =
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new (fallible) nsHtml5OwningUTF16Buffer(newBuf);
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if (!newObj) {
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delete[] newBuf;
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return nsnull;
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}
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return newObj.forget();
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}
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void
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nsHtml5OwningUTF16Buffer::Swap(nsHtml5OwningUTF16Buffer* aOther)
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{
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nsHtml5UTF16Buffer::Swap(aOther);
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}
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// Not using macros for AddRef and Release in order to be able to refcount on
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// and create on different threads.
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nsrefcnt
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nsHtml5OwningUTF16Buffer::AddRef()
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{
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NS_PRECONDITION(PRInt32(mRefCnt) >= 0, "Illegal refcount.");
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++mRefCnt;
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NS_LOG_ADDREF(this, mRefCnt, "nsHtml5OwningUTF16Buffer", sizeof(*this));
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return mRefCnt;
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}
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nsrefcnt
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nsHtml5OwningUTF16Buffer::Release()
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{
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NS_PRECONDITION(0 != mRefCnt, "Release without AddRef.");
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--mRefCnt;
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NS_LOG_RELEASE(this, mRefCnt, "nsHtml5OwningUTF16Buffer");
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if (mRefCnt == 0) {
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mRefCnt = 1; /* stabilize */
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delete this;
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return 0;
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}
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return mRefCnt;
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}
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