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 blink { 38 39 class SharedBuffer; 40 class WebDataPrivate; 41 42 // A container for raw bytes. It is inexpensive to copy a WebData object. 43 // 44 // WARNING: It is not safe to pass a WebData across threads!!! 45 // 46 class BLINK_PLATFORM_EXPORT WebData { 47 public: ~WebData()48 ~WebData() { reset(); } 49 WebData()50 WebData() { } 51 WebData(const char * data,size_t size)52 WebData(const char* data, size_t size) 53 { 54 assign(data, size); 55 } 56 57 template <int N> WebData(const char (& data)[N])58 WebData(const char (&data)[N]) 59 { 60 assign(data, N - 1); 61 } 62 WebData(const WebData & d)63 WebData(const WebData& d) { assign(d); } 64 65 WebData& operator=(const WebData& d) 66 { 67 assign(d); 68 return *this; 69 } 70 71 void reset(); 72 void assign(const WebData&); 73 void assign(const char* data, size_t size); 74 75 size_t size() const; 76 const char* data() const; 77 isEmpty()78 bool isEmpty() const { return !size(); } isNull()79 bool isNull() const { return m_private.isNull(); } 80 81 #if INSIDE_BLINK 82 WebData(const PassRefPtr<SharedBuffer>&); 83 WebData& operator=(const PassRefPtr<SharedBuffer>&); 84 operator PassRefPtr<SharedBuffer>() const; 85 #else 86 template <class C> WebData(const C & c)87 WebData(const C& c) 88 { 89 assign(c.data(), c.size()); 90 } 91 92 template <class C> 93 WebData& operator=(const C& c) 94 { 95 assign(c.data(), c.size()); 96 return *this; 97 } 98 #endif 99 100 private: 101 WebPrivatePtr<SharedBuffer> m_private; 102 }; 103 104 } // namespace blink 105 106 #endif 107