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| 1 /* | |
| 2 * Copyright (C) 2009 Apple Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #include "wtf/ArrayBuffer.h" | |
| 27 | |
| 28 #include "wtf/ArrayBufferView.h" | |
| 29 #include "wtf/RefPtr.h" | |
| 30 | |
| 31 namespace WTF { | |
| 32 | |
| 33 bool ArrayBuffer::transfer(ArrayBufferContents& result) | |
| 34 { | |
| 35 ASSERT(!isShared()); | |
| 36 RefPtr<ArrayBuffer> keepAlive(this); | |
| 37 | |
| 38 if (!m_contents.data()) { | |
| 39 result.neuter(); | |
| 40 return false; | |
| 41 } | |
| 42 | |
| 43 bool allViewsAreNeuterable = true; | |
| 44 for (ArrayBufferView* i = m_firstView; i; i = i->m_nextView) { | |
| 45 if (!i->isNeuterable()) | |
| 46 allViewsAreNeuterable = false; | |
| 47 } | |
| 48 | |
| 49 if (allViewsAreNeuterable) { | |
| 50 m_contents.transfer(result); | |
| 51 } else { | |
| 52 m_contents.copyTo(result); | |
| 53 if (!result.data()) | |
| 54 return false; | |
| 55 } | |
| 56 | |
| 57 while (m_firstView) { | |
| 58 ArrayBufferView* current = m_firstView; | |
| 59 removeView(current); | |
| 60 if (allViewsAreNeuterable || current->isNeuterable()) | |
| 61 current->neuter(); | |
| 62 } | |
| 63 | |
| 64 m_isNeutered = true; | |
| 65 | |
| 66 return true; | |
| 67 } | |
| 68 | |
| 69 bool ArrayBuffer::shareContentsWith(ArrayBufferContents& result) | |
| 70 { | |
| 71 ASSERT(isShared()); | |
| 72 RefPtr<ArrayBuffer> keepAlive(this); | |
| 73 | |
| 74 if (!m_contents.data()) { | |
| 75 result.neuter(); | |
| 76 return false; | |
| 77 } | |
| 78 | |
| 79 m_contents.shareWith(result); | |
| 80 return true; | |
| 81 } | |
| 82 | |
| 83 void ArrayBuffer::addView(ArrayBufferView* view) | |
| 84 { | |
| 85 view->m_buffer = this; | |
| 86 view->m_prevView = 0; | |
| 87 view->m_nextView = m_firstView; | |
| 88 if (m_firstView) | |
| 89 m_firstView->m_prevView = view; | |
| 90 m_firstView = view; | |
| 91 } | |
| 92 | |
| 93 void ArrayBuffer::removeView(ArrayBufferView* view) | |
| 94 { | |
| 95 ASSERT(this == view->m_buffer); | |
| 96 if (view->m_nextView) | |
| 97 view->m_nextView->m_prevView = view->m_prevView; | |
| 98 if (view->m_prevView) | |
| 99 view->m_prevView->m_nextView = view->m_nextView; | |
| 100 if (m_firstView == view) | |
| 101 m_firstView = view->m_nextView; | |
| 102 view->m_prevView = view->m_nextView = 0; | |
| 103 } | |
| 104 | |
| 105 } // namespace WTF | |
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Chromium Code Reviews
Issue 1875343002:
Move WTF classes related to typed arrays to wtf/typed_arrays (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master