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<div class="title">winpipes.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">// winpipes.cpp - originally written and placed in the public domain by Wei Dai</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor">#include "<a class="code" href="pch_8h.html">pch.h</a>"</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include "<a class="code" href="config_8h.html">config.h</a>"</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> </div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#if !defined(NO_OS_DEPENDENCE) && defined(WINDOWS_PIPES_AVAILABLE)</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "winpipes.h"</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include "wait.h"</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// Windows 8, Windows Server 2012, and Windows Phone 8.1 need <synchapi.h> and <ioapiset.h></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#if defined(CRYPTOPP_WIN32_AVAILABLE)</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor"># if ((WINVER >= 0x0602 </span><span class="comment">/*_WIN32_WINNT_WIN8*/</span><span class="preprocessor">) || (_WIN32_WINNT >= 0x0602 </span><span class="comment">/*_WIN32_WINNT_WIN8*/</span><span class="preprocessor">))</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"># include <synchapi.h></span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor"># include <ioapiset.h></span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor"># define USE_WINDOWS8_API</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor"># endif</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> NAMESPACE_BEGIN(<a class="code" href="namespace_crypto_p_p.html">CryptoPP</a>)</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> WindowsHandle::WindowsHandle(HANDLE h, <span class="keywordtype">bool</span> own)</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  : m_h(h), m_own(own)</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> }</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> WindowsHandle::~WindowsHandle()</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keywordflow">if</span> (m_own)</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordflow">try</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  {</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  CloseHandle();</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  }</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordflow">catch</span> (<span class="keyword">const</span> <a class="code" href="class_exception.html">Exception</a>&)</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>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(0);</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  }</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  }</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> }</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keywordtype">bool</span> WindowsHandle::HandleValid()<span class="keyword"> const</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword"></span>{</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> m_h && m_h != INVALID_HANDLE_VALUE;</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> }</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keywordtype">void</span> WindowsHandle::AttachHandle(HANDLE h, <span class="keywordtype">bool</span> own)</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> {</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">if</span> (m_own)</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  CloseHandle();</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>  m_h = h;</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  m_own = own;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  HandleChanged();</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> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> HANDLE WindowsHandle::DetachHandle()</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>  HANDLE h = m_h;</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  m_h = INVALID_HANDLE_VALUE;</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  HandleChanged();</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">return</span> h;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> }</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keywordtype">void</span> WindowsHandle::CloseHandle()</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> {</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">if</span> (m_h != INVALID_HANDLE_VALUE)</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  ::CloseHandle(m_h);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  m_h = INVALID_HANDLE_VALUE;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  HandleChanged();</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  }</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</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="comment">// ********************************************************</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keywordtype">void</span> WindowsPipe::HandleError(<span class="keyword">const</span> <span class="keywordtype">char</span> *operation)<span class="keyword"> const</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="keyword"></span>{</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  DWORD err = GetLastError();</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">throw</span> Err(GetHandle(), operation, err);</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> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> WindowsPipe::Err::Err(HANDLE s, <span class="keyword">const</span> std::string& operation, <span class="keywordtype">int</span> error)</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  : <a class="code" href="class_o_s___error.html">OS_Error</a>(IO_ERROR, <span class="stringliteral">"WindowsPipe: "</span> + operation + <span class="stringliteral">" operation failed with error 0x"</span> + <a class="code" href="misc_8h.html#a6cd7decd035cc4e144cd3d395e834106">IntToString</a>(error, 16), operation, error)</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  , m_h(s)</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> {</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> }</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="comment">// *************************************************************</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> WindowsPipeReceiver::WindowsPipeReceiver()</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  : m_lastResult(0), m_resultPending(false), m_eofReceived(false)</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> {</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  m_event.AttachHandle(CreateEvent(NULLPTR, <span class="keyword">true</span>, <span class="keyword">false</span>, NULLPTR), <span class="keyword">true</span>);</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  CheckAndHandleError(<span class="stringliteral">"CreateEvent"</span>, m_event.HandleValid());</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  memset(&m_overlapped, 0, <span class="keyword">sizeof</span>(m_overlapped));</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  m_overlapped.hEvent = m_event;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> }</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"><a class="line" href="class_windows_pipe_receiver.html#a97f6f63da2411395a55e416e0ea8b11b"> 100</a></span> <span class="keywordtype">bool</span> <a class="code" href="class_windows_pipe_receiver.html#a97f6f63da2411395a55e416e0ea8b11b">WindowsPipeReceiver::Receive</a>(<span class="keywordtype">byte</span>* buf, <span class="keywordtype">size_t</span> bufLen)</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> {</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <a class="code" href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a>(!m_resultPending && !m_eofReceived);</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keyword">const</span> HANDLE h = GetHandle();</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">// don't queue too much at once, or we might use up non-paged memory</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordflow">if</span> (ReadFile(h, buf, <a class="code" href="misc_8h.html#ac8391e7d9d613a6c401787d2cdab1f51">UnsignedMin</a>((DWORD)128*1024, bufLen), &m_lastResult, &m_overlapped))</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  {</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">if</span> (m_lastResult == 0)</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  m_eofReceived = <span class="keyword">true</span>;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  }</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  {</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">switch</span> (GetLastError())</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  {</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  CheckAndHandleError(<span class="stringliteral">"ReadFile"</span>, <span class="keyword">false</span>);</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">// Fall through for non-fatal</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">case</span> ERROR_BROKEN_PIPE:</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordflow">case</span> ERROR_HANDLE_EOF:</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  m_lastResult = 0;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  m_eofReceived = <span class="keyword">true</span>;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keywordflow">case</span> ERROR_IO_PENDING:</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  m_resultPending = <span class="keyword">true</span>;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  }</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>  <span class="keywordflow">return</span> !m_resultPending;</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> }</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="class_windows_pipe_receiver.html#a44a3dbb7ef3161d84731c3c320eaa33a"> 130</a></span> <span class="keywordtype">void</span> <a class="code" href="class_windows_pipe_receiver.html#a44a3dbb7ef3161d84731c3c320eaa33a">WindowsPipeReceiver::GetWaitObjects</a>(<a class="code" href="class_wait_object_container.html">WaitObjectContainer</a> &container, <a class="code" href="class_call_stack.html">CallStack</a> <span class="keyword">const</span>& callStack)</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> {</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">if</span> (m_resultPending)</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  container.AddHandle(m_event, <a class="code" href="class_call_stack.html">CallStack</a>(<span class="stringliteral">"WindowsPipeReceiver::GetWaitObjects() - result pending"</span>, &callStack));</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (!m_eofReceived)</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  container.SetNoWait(<a class="code" href="class_call_stack.html">CallStack</a>(<span class="stringliteral">"WindowsPipeReceiver::GetWaitObjects() - result ready"</span>, &callStack));</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> }</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> WindowsPipeReceiver::GetReceiveResult()</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> {</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  <span class="keywordflow">if</span> (m_resultPending)</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> <span class="preprocessor">#if defined(USE_WINDOWS8_API)</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  BOOL result = GetOverlappedResultEx(GetHandle(), &m_overlapped, &m_lastResult, INFINITE, FALSE);</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  BOOL result = GetOverlappedResult(GetHandle(), &m_overlapped, &m_lastResult, FALSE);</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">if</span> (result)</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  {</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordflow">if</span> (m_lastResult == 0)</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  m_eofReceived = <span class="keyword">true</span>;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  }</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  {</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">switch</span> (GetLastError())</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  {</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">default</span>:</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  CheckAndHandleError(<span class="stringliteral">"GetOverlappedResult"</span>, <span class="keyword">false</span>);</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="comment">// Fall through for non-fatal</span></div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">case</span> ERROR_BROKEN_PIPE:</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">case</span> ERROR_HANDLE_EOF:</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  m_lastResult = 0;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  m_eofReceived = <span class="keyword">true</span>;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  }</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  }</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  m_resultPending = <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>  <span class="keywordflow">return</span> m_lastResult;</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> </div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="comment">// *************************************************************</span></div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> WindowsPipeSender::WindowsPipeSender()</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  : m_lastResult(0), m_resultPending(false)</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> {</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  m_event.AttachHandle(CreateEvent(NULLPTR, <span class="keyword">true</span>, <span class="keyword">false</span>, NULLPTR), <span class="keyword">true</span>);</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  CheckAndHandleError(<span class="stringliteral">"CreateEvent"</span>, m_event.HandleValid());</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  memset(&m_overlapped, 0, <span class="keyword">sizeof</span>(m_overlapped));</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  m_overlapped.hEvent = m_event;</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> }</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="keywordtype">void</span> WindowsPipeSender::Send(<span class="keyword">const</span> <span class="keywordtype">byte</span>* buf, <span class="keywordtype">size_t</span> bufLen)</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> {</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  DWORD written = 0;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">const</span> HANDLE h = GetHandle();</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// don't queue too much at once, or we might use up non-paged memory</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">if</span> (WriteFile(h, buf, <a class="code" href="misc_8h.html#ac8391e7d9d613a6c401787d2cdab1f51">UnsignedMin</a>((DWORD)128*1024, bufLen), &written, &m_overlapped))</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>  m_resultPending = <span class="keyword">false</span>;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  m_lastResult = written;</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  }</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  {</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">if</span> (GetLastError() != ERROR_IO_PENDING)</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  CheckAndHandleError(<span class="stringliteral">"WriteFile"</span>, <span class="keyword">false</span>);</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>  m_resultPending = <span class="keyword">true</span>;</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  }</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span> }</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> </div><div class="line"><a name="l00200"></a><span class="lineno"><a class="line" href="class_windows_pipe_sender.html#a26b98ea160dc37248cb9934edb8a27ef"> 200</a></span> <span class="keywordtype">void</span> <a class="code" href="class_windows_pipe_sender.html#a26b98ea160dc37248cb9934edb8a27ef">WindowsPipeSender::GetWaitObjects</a>(<a class="code" href="class_wait_object_container.html">WaitObjectContainer</a> &container, <a class="code" href="class_call_stack.html">CallStack</a> <span class="keyword">const</span>& callStack)</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span> {</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">if</span> (m_resultPending)</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  container.AddHandle(m_event, <a class="code" href="class_call_stack.html">CallStack</a>(<span class="stringliteral">"WindowsPipeSender::GetWaitObjects() - result pending"</span>, &callStack));</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  container.SetNoWait(<a class="code" href="class_call_stack.html">CallStack</a>(<span class="stringliteral">"WindowsPipeSender::GetWaitObjects() - result ready"</span>, &callStack));</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> </div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> WindowsPipeSender::GetSendResult()</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> {</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">if</span> (m_resultPending)</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  {</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keyword">const</span> HANDLE h = GetHandle();</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <span class="preprocessor">#if defined(USE_WINDOWS8_API)</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  BOOL result = GetOverlappedResultEx(h, &m_overlapped, &m_lastResult, INFINITE, FALSE);</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  CheckAndHandleError(<span class="stringliteral">"GetOverlappedResultEx"</span>, result);</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  BOOL result = GetOverlappedResult(h, &m_overlapped, &m_lastResult, FALSE);</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  CheckAndHandleError(<span class="stringliteral">"GetOverlappedResult"</span>, result);</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  m_resultPending = <span class="keyword">false</span>;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordflow">return</span> m_lastResult;</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> }</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> NAMESPACE_END</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="class_exception_html"><div class="ttname"><a href="class_exception.html">Exception</a></div><div class="ttdoc">Base class for all exceptions thrown by the library.</div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00155">cryptlib.h:155</a></div></div>
<div class="ttc" id="class_wait_object_container_html"><div class="ttname"><a href="class_wait_object_container.html">WaitObjectContainer</a></div><div class="ttdoc">container of wait objects</div><div class="ttdef"><b>Definition:</b> <a href="wait_8h_source.html#l00169">wait.h:169</a></div></div>
<div class="ttc" id="class_o_s___error_html"><div class="ttname"><a href="class_o_s___error.html">OS_Error</a></div><div class="ttdoc">The operating system reported an error.</div><div class="ttdef"><b>Definition:</b> <a href="cryptlib_8h_source.html#l00234">cryptlib.h:234</a></div></div>
<div class="ttc" id="config_8h_html"><div class="ttname"><a href="config_8h.html">config.h</a></div><div class="ttdoc">Library configuration file.</div></div>
<div class="ttc" id="class_windows_pipe_sender_html_a26b98ea160dc37248cb9934edb8a27ef"><div class="ttname"><a href="class_windows_pipe_sender.html#a26b98ea160dc37248cb9934edb8a27ef">WindowsPipeSender::GetWaitObjects</a></div><div class="ttdeci">void GetWaitObjects(WaitObjectContainer &container, CallStack const &callStack)</div><div class="ttdoc">Retrieves waitable objects.</div><div class="ttdef"><b>Definition:</b> <a href="winpipes_8cpp_source.html#l00200">winpipes.cpp:200</a></div></div>
<div class="ttc" id="class_windows_pipe_receiver_html_a44a3dbb7ef3161d84731c3c320eaa33a"><div class="ttname"><a href="class_windows_pipe_receiver.html#a44a3dbb7ef3161d84731c3c320eaa33a">WindowsPipeReceiver::GetWaitObjects</a></div><div class="ttdeci">void GetWaitObjects(WaitObjectContainer &container, CallStack const &callStack)</div><div class="ttdoc">Retrieves waitable objects.</div><div class="ttdef"><b>Definition:</b> <a href="winpipes_8cpp_source.html#l00130">winpipes.cpp:130</a></div></div>
<div class="ttc" id="class_windows_pipe_receiver_html_a97f6f63da2411395a55e416e0ea8b11b"><div class="ttname"><a href="class_windows_pipe_receiver.html#a97f6f63da2411395a55e416e0ea8b11b">WindowsPipeReceiver::Receive</a></div><div class="ttdeci">bool Receive(byte *buf, size_t bufLen)</div><div class="ttdoc">receive data from network source, returns whether result is immediately available</div><div class="ttdef"><b>Definition:</b> <a href="winpipes_8cpp_source.html#l00100">winpipes.cpp:100</a></div></div>
<div class="ttc" id="pch_8h_html"><div class="ttname"><a href="pch_8h.html">pch.h</a></div><div class="ttdoc">Precompiled header file.</div></div>
<div class="ttc" id="misc_8h_html_ac8391e7d9d613a6c401787d2cdab1f51"><div class="ttname"><a href="misc_8h.html#ac8391e7d9d613a6c401787d2cdab1f51">UnsignedMin</a></div><div class="ttdeci">const T1 UnsignedMin(const T1 &a, const T2 &b)</div><div class="ttdoc">Safe comparison of values that could be neagtive and incorrectly promoted.</div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00546">misc.h:546</a></div></div>
<div class="ttc" id="trap_8h_html_adf3b392588bc94cbeae9f415a78c7b95"><div class="ttname"><a href="trap_8h.html#adf3b392588bc94cbeae9f415a78c7b95">CRYPTOPP_ASSERT</a></div><div class="ttdeci">#define CRYPTOPP_ASSERT(exp)</div><div class="ttdoc">Debugging and diagnostic assertion.</div><div class="ttdef"><b>Definition:</b> <a href="trap_8h_source.html#l00060">trap.h:60</a></div></div>
<div class="ttc" id="misc_8h_html_a6cd7decd035cc4e144cd3d395e834106"><div class="ttname"><a href="misc_8h.html#a6cd7decd035cc4e144cd3d395e834106">IntToString</a></div><div class="ttdeci">std::string IntToString(T value, unsigned int base=10)</div><div class="ttdoc">Converts a value to a string.</div><div class="ttdef"><b>Definition:</b> <a href="misc_8h_source.html#l00576">misc.h:576</a></div></div>
<div class="ttc" id="namespace_crypto_p_p_html"><div class="ttname"><a href="namespace_crypto_p_p.html">CryptoPP</a></div><div class="ttdoc">Crypto++ library namespace.</div></div>
<div class="ttc" id="class_call_stack_html"><div class="ttname"><a href="class_call_stack.html">CallStack</a></div><div class="ttdef"><b>Definition:</b> <a href="wait_8h_source.html#l00124">wait.h:124</a></div></div>
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