The Tor Browser / file comparison
comparison: parser/html/nsHtml5OwningUTF16Buffer.cpp
parser/html/nsHtml5OwningUTF16Buffer.cpp
- branch
- TOR_BUG_9701
- changeset 14
- 925c144e1f1f
equal
deleted
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replaced
| -1:000000000000 | 0:668eac9fb8e7 |
|---|---|
| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 #include "nsHtml5OwningUTF16Buffer.h" | |
| 6 | |
| 7 nsHtml5OwningUTF16Buffer::nsHtml5OwningUTF16Buffer(char16_t* aBuffer) | |
| 8 : nsHtml5UTF16Buffer(aBuffer, 0), | |
| 9 next(nullptr), | |
| 10 key(nullptr) | |
| 11 { | |
| 12 MOZ_COUNT_CTOR(nsHtml5OwningUTF16Buffer); | |
| 13 } | |
| 14 | |
| 15 nsHtml5OwningUTF16Buffer::nsHtml5OwningUTF16Buffer(void* aKey) | |
| 16 : nsHtml5UTF16Buffer(nullptr, 0), | |
| 17 next(nullptr), | |
| 18 key(aKey) | |
| 19 { | |
| 20 MOZ_COUNT_CTOR(nsHtml5OwningUTF16Buffer); | |
| 21 } | |
| 22 | |
| 23 nsHtml5OwningUTF16Buffer::~nsHtml5OwningUTF16Buffer() | |
| 24 { | |
| 25 MOZ_COUNT_DTOR(nsHtml5OwningUTF16Buffer); | |
| 26 DeleteBuffer(); | |
| 27 | |
| 28 // This is to avoid dtor recursion on 'next', bug 706932. | |
| 29 nsRefPtr<nsHtml5OwningUTF16Buffer> tail; | |
| 30 tail.swap(next); | |
| 31 while (tail && tail->mRefCnt == 1) { | |
| 32 nsRefPtr<nsHtml5OwningUTF16Buffer> tmp; | |
| 33 tmp.swap(tail->next); | |
| 34 tail.swap(tmp); | |
| 35 } | |
| 36 } | |
| 37 | |
| 38 // static | |
| 39 already_AddRefed<nsHtml5OwningUTF16Buffer> | |
| 40 nsHtml5OwningUTF16Buffer::FalliblyCreate(int32_t aLength) | |
| 41 { | |
| 42 const mozilla::fallible_t fallible = mozilla::fallible_t(); | |
| 43 char16_t* newBuf = new (fallible) char16_t[aLength]; | |
| 44 if (!newBuf) { | |
| 45 return nullptr; | |
| 46 } | |
| 47 nsRefPtr<nsHtml5OwningUTF16Buffer> newObj = | |
| 48 new (fallible) nsHtml5OwningUTF16Buffer(newBuf); | |
| 49 if (!newObj) { | |
| 50 delete[] newBuf; | |
| 51 return nullptr; | |
| 52 } | |
| 53 return newObj.forget(); | |
| 54 } | |
| 55 | |
| 56 void | |
| 57 nsHtml5OwningUTF16Buffer::Swap(nsHtml5OwningUTF16Buffer* aOther) | |
| 58 { | |
| 59 nsHtml5UTF16Buffer::Swap(aOther); | |
| 60 } | |
| 61 | |
| 62 | |
| 63 // Not using macros for AddRef and Release in order to be able to refcount on | |
| 64 // and create on different threads. | |
| 65 | |
| 66 nsrefcnt | |
| 67 nsHtml5OwningUTF16Buffer::AddRef() | |
| 68 { | |
| 69 NS_PRECONDITION(int32_t(mRefCnt) >= 0, "Illegal refcount."); | |
| 70 ++mRefCnt; | |
| 71 NS_LOG_ADDREF(this, mRefCnt, "nsHtml5OwningUTF16Buffer", sizeof(*this)); | |
| 72 return mRefCnt; | |
| 73 } | |
| 74 | |
| 75 nsrefcnt | |
| 76 nsHtml5OwningUTF16Buffer::Release() | |
| 77 { | |
| 78 NS_PRECONDITION(0 != mRefCnt, "Release without AddRef."); | |
| 79 --mRefCnt; | |
| 80 NS_LOG_RELEASE(this, mRefCnt, "nsHtml5OwningUTF16Buffer"); | |
| 81 if (mRefCnt == 0) { | |
| 82 mRefCnt = 1; /* stabilize */ | |
| 83 delete this; | |
| 84 return 0; | |
| 85 } | |
| 86 return mRefCnt; | |
| 87 } |
