1 /* 2 * Copyright (C) 2009 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef WebData_h 32 #define WebData_h 33 34 #include "WebCommon.h" 35 #include "WebPrivatePtr.h" 36 37 namespace WebCore { class SharedBuffer; } 38 39 namespace blink { 40 41 class WebDataPrivate; 42 43 // A container for raw bytes. It is inexpensive to copy a WebData object. 44 // 45 // WARNING: It is not safe to pass a WebData across threads!!! 46 // 47 class BLINK_PLATFORM_EXPORT WebData { 48 public: ~WebData()49 ~WebData() { reset(); } 50 WebData()51 WebData() { } 52 WebData(const char * data,size_t size)53 WebData(const char* data, size_t size) 54 { 55 assign(data, size); 56 } 57 58 template <int N> WebData(const char (& data)[N])59 WebData(const char (&data)[N]) 60 { 61 assign(data, N - 1); 62 } 63 WebData(const WebData & d)64 WebData(const WebData& d) { assign(d); } 65 66 WebData& operator=(const WebData& d) 67 { 68 assign(d); 69 return *this; 70 } 71 72 void reset(); 73 void assign(const WebData&); 74 void assign(const char* data, size_t size); 75 76 size_t size() const; 77 const char* data() const; 78 isEmpty()79 bool isEmpty() const { return !size(); } isNull()80 bool isNull() const { return m_private.isNull(); } 81 82 #if INSIDE_BLINK 83 WebData(const PassRefPtr<WebCore::SharedBuffer>&); 84 WebData& operator=(const PassRefPtr<WebCore::SharedBuffer>&); 85 operator PassRefPtr<WebCore::SharedBuffer>() const; 86 #else 87 template <class C> WebData(const C & c)88 WebData(const C& c) 89 { 90 assign(c.data(), c.size()); 91 } 92 93 template <class C> 94 WebData& operator=(const C& c) 95 { 96 assign(c.data(), c.size()); 97 return *this; 98 } 99 #endif 100 101 private: 102 WebPrivatePtr<WebCore::SharedBuffer> m_private; 103 }; 104 105 } // namespace blink 106 107 #endif 108