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 #ifndef ArrayBuffer_h 27 #define ArrayBuffer_h 28 29 #include <wtf/PassRefPtr.h> 30 #include <wtf/RefCounted.h> 31 32 namespace WebCore { 33 34 class ArrayBuffer : public RefCounted<ArrayBuffer> { 35 public: 36 static PassRefPtr<ArrayBuffer> create(unsigned numElements, unsigned elementByteSize); 37 static PassRefPtr<ArrayBuffer> create(ArrayBuffer*); 38 static PassRefPtr<ArrayBuffer> create(void* source, unsigned byteLength); 39 40 void* data(); 41 const void* data() const; 42 unsigned byteLength() const; 43 44 ~ArrayBuffer(); 45 46 private: 47 ArrayBuffer(void* data, unsigned sizeInBytes); 48 ArrayBuffer(unsigned numElements, unsigned elementByteSize); 49 static void* tryAllocate(unsigned numElements, unsigned elementByteSize); 50 unsigned m_sizeInBytes; 51 void* m_data; 52 }; 53 54 } // namespace WebCore 55 56 #endif // ArrayBuffer_h 57