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1 /* |
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2 * Copyright (C) 2009 Google Inc. All rights reserved. |
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3 * |
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4 * Redistribution and use in source and binary forms, with or without |
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5 * modification, are permitted provided that the following conditions are |
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6 * met: |
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7 * |
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8 * * Redistributions of source code must retain the above copyright |
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9 * notice, this list of conditions and the following disclaimer. |
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10 * * Redistributions in binary form must reproduce the above |
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11 * copyright notice, this list of conditions and the following disclaimer |
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12 * in the documentation and/or other materials provided with the |
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13 * distribution. |
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14 * * Neither the name of Google Inc. nor the names of its |
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15 * contributors may be used to endorse or promote products derived from |
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16 * this software without specific prior written permission. |
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17 * |
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18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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29 */ |
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30 |
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31 #include "config.h" |
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32 #include "WebData.h" |
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33 |
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34 #include "SharedBuffer.h" |
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35 |
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36 using namespace WebCore; |
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37 |
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38 namespace WebKit { |
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39 |
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40 class WebDataPrivate : public SharedBuffer { |
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41 }; |
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42 |
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43 void WebData::reset() |
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44 { |
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45 if (m_private) { |
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46 m_private->deref(); |
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47 m_private = 0; |
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48 } |
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49 } |
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50 |
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51 void WebData::assign(const WebData& other) |
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52 { |
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53 WebDataPrivate* p = const_cast<WebDataPrivate*>(other.m_private); |
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54 if (p) |
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55 p->ref(); |
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56 assign(p); |
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57 } |
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58 |
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59 void WebData::assign(const char* data, size_t size) |
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60 { |
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61 assign(static_cast<WebDataPrivate*>( |
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62 SharedBuffer::create(data, size).releaseRef())); |
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63 } |
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64 |
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65 size_t WebData::size() const |
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66 { |
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67 if (!m_private) |
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68 return 0; |
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69 return const_cast<WebDataPrivate*>(m_private)->size(); |
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70 } |
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71 |
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72 const char* WebData::data() const |
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73 { |
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74 if (!m_private) |
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75 return 0; |
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76 return const_cast<WebDataPrivate*>(m_private)->data(); |
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77 } |
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78 |
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79 WebData::WebData(const PassRefPtr<SharedBuffer>& buffer) |
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80 : m_private(static_cast<WebDataPrivate*>(buffer.releaseRef())) |
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81 { |
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82 } |
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83 |
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84 WebData& WebData::operator=(const PassRefPtr<SharedBuffer>& buffer) |
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85 { |
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86 assign(static_cast<WebDataPrivate*>(buffer.releaseRef())); |
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87 return *this; |
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88 } |
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89 |
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90 WebData::operator PassRefPtr<SharedBuffer>() const |
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91 { |
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92 return PassRefPtr<SharedBuffer>(const_cast<WebDataPrivate*>(m_private)); |
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93 } |
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94 |
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95 void WebData::assign(WebDataPrivate* p) |
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96 { |
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97 // p is already ref'd for us by the caller |
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98 if (m_private) |
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99 m_private->deref(); |
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100 m_private = p; |
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101 } |
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102 |
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103 } // namespace WebKit |