/* 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 "nsHtml5OwningUTF16Buffer.h" nsHtml5OwningUTF16Buffer::nsHtml5OwningUTF16Buffer(char16_t* aBuffer) : nsHtml5UTF16Buffer(aBuffer, 0), next(nullptr), key(nullptr) { MOZ_COUNT_CTOR(nsHtml5OwningUTF16Buffer); } nsHtml5OwningUTF16Buffer::nsHtml5OwningUTF16Buffer(void* aKey) : nsHtml5UTF16Buffer(nullptr, 0), next(nullptr), key(aKey) { MOZ_COUNT_CTOR(nsHtml5OwningUTF16Buffer); } nsHtml5OwningUTF16Buffer::~nsHtml5OwningUTF16Buffer() { MOZ_COUNT_DTOR(nsHtml5OwningUTF16Buffer); DeleteBuffer(); // This is to avoid dtor recursion on 'next', bug 706932. RefPtr<nsHtml5OwningUTF16Buffer> tail; tail.swap(next); while (tail && tail->mRefCnt == 1) { RefPtr<nsHtml5OwningUTF16Buffer> tmp; tmp.swap(tail->next); tail.swap(tmp); } } // static already_AddRefed<nsHtml5OwningUTF16Buffer> nsHtml5OwningUTF16Buffer::FalliblyCreate(int32_t aLength) { char16_t* newBuf = new (mozilla::fallible) char16_t[aLength]; if (!newBuf) { return nullptr; } RefPtr<nsHtml5OwningUTF16Buffer> newObj = new (mozilla::fallible) nsHtml5OwningUTF16Buffer(newBuf); if (!newObj) { delete[] newBuf; return nullptr; } return newObj.forget(); } void nsHtml5OwningUTF16Buffer::Swap(nsHtml5OwningUTF16Buffer* aOther) { nsHtml5UTF16Buffer::Swap(aOther); } // Not using macros for AddRef and Release in order to be able to refcount on // and create on different threads. nsrefcnt nsHtml5OwningUTF16Buffer::AddRef() { NS_PRECONDITION(int32_t(mRefCnt) >= 0, "Illegal refcount."); ++mRefCnt; NS_LOG_ADDREF(this, mRefCnt, "nsHtml5OwningUTF16Buffer", sizeof(*this)); return mRefCnt; } nsrefcnt nsHtml5OwningUTF16Buffer::Release() { NS_PRECONDITION(0 != mRefCnt, "Release without AddRef."); --mRefCnt; NS_LOG_RELEASE(this, mRefCnt, "nsHtml5OwningUTF16Buffer"); if (mRefCnt == 0) { mRefCnt = 1; /* stabilize */ delete this; return 0; } return mRefCnt; }