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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li> </ul>
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<div class="title">pipe.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">// Copyright (c) 2020 Egor Tensin <Egor.Tensin@gmail.com></span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// This file is part of the "winapi-common" project.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// For details, see https://github.com/egor-tensin/winapi-common.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Distributed under the MIT License.</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">#include <<a class="code" href="error_8hpp.html">winapi/error.hpp</a>></span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include <winapi/handle.hpp></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <winapi/pipe.hpp></span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>  </div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <windows.h></span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>  </div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include <cstring></span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include <utility></span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>  </div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>winapi {</div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="keyword">namespace </span>{</div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  </div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keywordtype">void</span> create_pipe(Handle& read_end, Handle& write_end) {</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  HANDLE read_end_impl = INVALID_HANDLE_VALUE;</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  HANDLE write_end_impl = INVALID_HANDLE_VALUE;</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>  SECURITY_ATTRIBUTES attributes;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  std::memset(&attributes, 0, <span class="keyword">sizeof</span>(attributes));</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  attributes.nLength = <span class="keyword">sizeof</span>(attributes);</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  attributes.bInheritHandle = TRUE;</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="keyword">static</span> constexpr DWORD buffer_size = 16 * 1024;</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="keyword">const</span> <span class="keyword">auto</span> ret = ::CreatePipe(&read_end_impl, &write_end_impl, &attributes, buffer_size);</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">if</span> (!ret) {</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <span class="keywordflow">throw</span> error::windows(GetLastError(), <span class="stringliteral">"CreatePipe"</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>  </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  read_end = Handle{read_end_impl};</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  write_end = Handle{write_end_impl};</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> }</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> } <span class="comment">// namespace</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"><a class="line" href="classwinapi_1_1Pipe.html#aa41a6275dab93f4fc0d2e593aa9b39f0"> 41</a></span> <a class="code" href="classwinapi_1_1Pipe.html#aa41a6275dab93f4fc0d2e593aa9b39f0">Pipe::Pipe</a>() {</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  create_pipe(m_read_end, m_write_end);</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> }</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> } <span class="comment">// namespace winapi</span></div>
<div class="ttc" id="aclasswinapi_1_1Pipe_html_aa41a6275dab93f4fc0d2e593aa9b39f0"><div class="ttname"><a href="classwinapi_1_1Pipe.html#aa41a6275dab93f4fc0d2e593aa9b39f0">winapi::Pipe::Pipe</a></div><div class="ttdeci">Pipe()</div><div class="ttdef"><b>Definition:</b> <a href="pipe_8cpp_source.html#l00041">pipe.cpp:41</a></div></div>
<div class="ttc" id="aerror_8hpp_html"><div class="ttname"><a href="error_8hpp.html">error.hpp</a></div><div class="ttdoc">Make std::system_error work with GetLastError().</div></div>
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