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<h2><a name="content"></a>qgpgme</h2>
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<div class="title">dataprovider.cpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* dataprovider.cpp</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> Copyright (C) 2004 Klar�vdalens Datakonsult AB</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"></span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> This file is part of QGPGME.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"></span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> QGPGME is free software; you can redistribute it and/or modify it</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> under the terms of the GNU Library General Public License as published</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> by the Free Software Foundation; either version 2 of the License, or</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> (at your option) any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"></span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> QGPGME is distributed in the hope that it will be useful, but</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> GNU Library General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"></span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> You should have received a copy of the GNU Library General Public License</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> along with QGPGME; see the file COPYING.LIB. If not, write to the</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> Boston, MA 02110-1301, USA. */</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// -*- c++ -*-</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <qgpgme/dataprovider.h></span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <gpgme++/error.h></span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <QIODevice></span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <QProcess></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <cstdio></span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <cstring></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <cassert></span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">using namespace </span>QGpgME;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">using namespace </span>GpgME;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">//</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment">//</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment">// QByteArrayDataProvider</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment">//</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment">//</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">static</span> <span class="keywordtype">bool</span> resizeAndInit( QByteArray & ba, <span class="keywordtype">size_t</span> newSize ) {</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">const</span> <span class="keywordtype">size_t</span> oldSize = ba.size();</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  ba.resize( newSize );</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> ok = ( newSize == <span class="keyword">static_cast<</span><span class="keywordtype">size_t</span><span class="keyword">></span>( ba.size() ) );</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">if</span> ( ok ) {</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  memset( ba.data() + oldSize, 0, newSize - oldSize );</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  }</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">return</span> ok;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> }</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> QByteArrayDataProvider::QByteArrayDataProvider()</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  : GpgME::DataProvider(), mOff( 0 ) {}</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> QByteArrayDataProvider::QByteArrayDataProvider( <span class="keyword">const</span> QByteArray & initialData )</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  : GpgME::DataProvider(), mArray( initialData ), mOff( 0 ) {}</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> QByteArrayDataProvider::~QByteArrayDataProvider() {}</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> ssize_t QByteArrayDataProvider::read( <span class="keywordtype">void</span> * buffer, <span class="keywordtype">size_t</span> bufSize ) {</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor"></span> <span class="comment">//qDebug( "QByteArrayDataProvider::read( %p, %d )", buffer, bufSize );</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> ( bufSize == 0 ) {</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  }</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">if</span> ( !buffer ) {</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  Error::setSystemError( GPG_ERR_EINVAL );</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  }</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordflow">if</span> ( mOff >= mArray.size() ) {</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> 0; <span class="comment">// EOF</span></div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  }</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">size_t</span> amount = qMin( bufSize, static_cast<size_t>( mArray.size() - mOff ) );</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  assert( amount > 0 );</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  memcpy( buffer, mArray.data() + mOff, amount );</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  mOff += amount;</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span> amount;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> }</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> ssize_t QByteArrayDataProvider::write( <span class="keyword">const</span> <span class="keywordtype">void</span> * buffer, <span class="keywordtype">size_t</span> bufSize ) {</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor"></span> <span class="comment">//qDebug( "QByteArrayDataProvider::write( %p, %lu )", buffer, static_cast<unsigned long>( bufSize ) );</span></div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> ( bufSize == 0 ) {</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">if</span> ( !buffer ) {</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  Error::setSystemError( GPG_ERR_EINVAL );</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">if</span> ( mOff >= mArray.size() ) {</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  resizeAndInit( mArray, mOff + bufSize );</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  }</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">if</span> ( mOff >= mArray.size() ) {</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  Error::setSystemError( GPG_ERR_EIO );</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  }</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  assert( bufSize <= static_cast<size_t>( mArray.size() ) - mOff );</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  memcpy( mArray.data() + mOff, buffer, bufSize );</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  mOff += bufSize;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keywordflow">return</span> bufSize;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> }</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> off_t QByteArrayDataProvider::seek( off_t offset, <span class="keywordtype">int</span> whence ) {</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="preprocessor"></span> <span class="comment">//qDebug( "QByteArrayDataProvider::seek( %d, %d )", int(offset), whence );</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="preprocessor"></span> <span class="keywordtype">int</span> newOffset = mOff;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">switch</span> ( whence ) {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">case</span> SEEK_SET:</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  newOffset = offset;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">case</span> SEEK_CUR:</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  newOffset += offset;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">case</span> SEEK_END:</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  newOffset = mArray.size() + offset;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  Error::setSystemError( GPG_ERR_EINVAL );</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">return</span> (off_t)-1;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  }</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> mOff = newOffset;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> }</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="keywordtype">void</span> QByteArrayDataProvider::release() {</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> <span class="preprocessor"></span> <span class="comment">//qDebug( "QByteArrayDataProvider::release()" );</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="preprocessor"></span> mArray = QByteArray();</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> }</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment">//</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="comment">//</span></div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="comment">// QIODeviceDataProvider</span></div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> <span class="comment">//</span></div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> <span class="comment">//</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> QIODeviceDataProvider::QIODeviceDataProvider( <span class="keyword">const</span> boost::shared_ptr<QIODevice> & io )</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  : GpgME::DataProvider(),</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  mIO( io ),</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  mErrorOccurred( false ),</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  mHaveQProcess( qobject_cast<QProcess*>( io.get() ) )</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> {</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  assert( mIO );</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> }</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> QIODeviceDataProvider::~QIODeviceDataProvider() {}</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="keywordtype">bool</span> QIODeviceDataProvider::isSupported( Operation op )<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keyword">const</span> QProcess* <span class="keyword">const</span> proc = qobject_cast<QProcess*>( mIO.get() );</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordtype">bool</span> canRead = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">if</span> ( proc ) {</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  canRead = proc->readChannel() == QProcess::StandardOutput;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  }</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">switch</span> ( op ) {</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">case</span> Read: <span class="keywordflow">return</span> mIO->isReadable() && canRead;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keywordflow">case</span> Write: <span class="keywordflow">return</span> mIO->isWritable();</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">case</span> Seek: <span class="keywordflow">return</span> !mIO->isSequential();</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">case</span> Release: <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keywordflow">default</span>: <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  }</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> }</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="keyword">static</span> qint64 blocking_read( <span class="keyword">const</span> boost::shared_ptr<QIODevice> & io, <span class="keywordtype">char</span> * buffer, qint64 maxSize ) {</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">while</span> ( !io->bytesAvailable() ) {</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">if</span> ( !io->waitForReadyRead( -1 ) ) {</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">if</span> ( <span class="keyword">const</span> QProcess * <span class="keyword">const</span> p = qobject_cast<QProcess*>( io.get() ) ) {</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">if</span> ( p->error() == QProcess::UnknownError &&</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  p->exitStatus() == QProcess::NormalExit &&</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  p->exitCode() == 0 ) {</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  Error::setSystemError( GPG_ERR_EIO );</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">return</span> 0; <span class="comment">// assume EOF (loses error cases :/ )</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  }</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  }</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  }</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">return</span> io->read( buffer, maxSize );</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> }</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> ssize_t QIODeviceDataProvider::read( <span class="keywordtype">void</span> * buffer, <span class="keywordtype">size_t</span> bufSize ) {</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <span class="preprocessor"></span> <span class="comment">//qDebug( "QIODeviceDataProvider::read( %p, %lu )", buffer, bufSize );</span></div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> ( bufSize == 0 ) {</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  }</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordflow">if</span> ( !buffer ) {</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  Error::setSystemError( GPG_ERR_EINVAL );</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keyword">const</span> qint64 numRead = mHaveQProcess</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  ? blocking_read( mIO, static_cast<char*>( buffer ), bufSize )</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  : mIO->read( static_cast<char*>( buffer ), bufSize );</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="comment">//workaround: some QIODevices (known example: QProcess) might not return 0 (EOF), but immediately -1 when finished. If no</span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="comment">//errno is set, gpgme doesn't detect the error and loops forever. So return 0 on the very first -1 in case errno is 0</span></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  ssize_t rc = numRead;</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">if</span> ( numRead < 0 && !Error::hasSystemError() ) {</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">if</span> ( mErrorOccurred ) {</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  Error::setSystemError( GPG_ERR_EIO );</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  rc = 0;</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  }</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">if</span> ( numRead < 0 ) {</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  mErrorOccurred = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  }</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">return</span> rc;</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> }</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> ssize_t QIODeviceDataProvider::write( <span class="keyword">const</span> <span class="keywordtype">void</span> * buffer, <span class="keywordtype">size_t</span> bufSize ) {</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="preprocessor"></span> <span class="comment">//qDebug( "QIODeviceDataProvider::write( %p, %lu )", buffer, static_cast<unsigned long>( bufSize ) );</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> ( bufSize == 0 ) {</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  }</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordflow">if</span> ( !buffer ) {</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  Error::setSystemError( GPG_ERR_EINVAL );</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  }</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> </div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">return</span> mIO->write( static_cast<const char*>( buffer ), bufSize );</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> }</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> </div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> off_t QIODeviceDataProvider::seek( off_t offset, <span class="keywordtype">int</span> whence ) {</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span> <span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> <span class="preprocessor"></span> <span class="comment">//qDebug( "QIODeviceDataProvider::seek( %d, %d )", int(offset), whence );</span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> <span class="preprocessor"></span> <span class="keywordflow">if</span> ( mIO->isSequential() ) {</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  Error::setSystemError( GPG_ERR_ESPIPE );</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="keywordflow">return</span> (off_t)-1;</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  }</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  qint64 newOffset = mIO->pos();</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">switch</span> ( whence ) {</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordflow">case</span> SEEK_SET:</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  newOffset = offset;</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  <span class="keywordflow">case</span> SEEK_CUR:</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  newOffset += offset;</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">case</span> SEEK_END:</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  newOffset = mIO->size() + offset;</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  Error::setSystemError( GPG_ERR_EINVAL );</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="keywordflow">return</span> (off_t)-1;</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  }</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">if</span> ( !mIO->seek( newOffset ) ) {</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  Error::setSystemError( GPG_ERR_EINVAL );</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">return</span> (off_t)-1;</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordflow">return</span> newOffset;</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> }</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> </div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> <span class="keywordtype">void</span> QIODeviceDataProvider::release() {</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> <span class="preprocessor">#ifndef NDEBUG</span></div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> <span class="preprocessor"></span> <span class="comment">//qDebug( "QIODeviceDataProvider::release()" );</span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="preprocessor"></span> mIO->close();</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> }</div>
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