http://git-wip-us.apache.org/repos/asf/mesos-site/blob/30b7fa50/content/api/latest/c++/windows_2shell_8hpp_source.html ---------------------------------------------------------------------- diff --git a/content/api/latest/c++/windows_2shell_8hpp_source.html b/content/api/latest/c++/windows_2shell_8hpp_source.html index 8e9cbf5..5b270d9 100644 --- a/content/api/latest/c++/windows_2shell_8hpp_source.html +++ b/content/api/latest/c++/windows_2shell_8hpp_source.html @@ -170,295 +170,294 @@ <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  std::map<std::wstring, std::wstring> combined_env;</div> <div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div> -<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">// Populate the combined environment first with the given environment</span></div> -<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="comment">// converted to UTF-16 for Windows.</span></div> -<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <a class="code" href="foreach_8hpp.html#a66900b166526abe66464d6597536b111">foreachpair</a> (<span class="keyword">const</span> std::string& key,</div> -<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">const</span> std::string& value,</div> -<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  env.get()) {</div> -<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  combined_env[wide_stringify(key)] = wide_stringify(value);</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="comment">// Add the system environment variables, overwriting the previous.</span></div> -<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <a class="code" href="foreach_8hpp.html#a66900b166526abe66464d6597536b111">foreachpair</a> (<span class="keyword">const</span> std::wstring& key,</div> -<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">const</span> std::wstring& value,</div> -<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  system_env.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>()) {</div> -<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  combined_env[key] = value;</div> -<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</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>  std::wstring env_string;</div> -<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <a class="code" href="foreach_8hpp.html#a66900b166526abe66464d6597536b111">foreachpair</a> (<span class="keyword">const</span> std::wstring& key,</div> -<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">const</span> std::wstring& value,</div> -<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  combined_env) {</div> -<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  env_string += key + L<span class="charliteral">'='</span> + value + L<span class="charliteral">'\0'</span>;</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> </div> -<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// Append final null terminating character.</span></div> -<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  env_string.push_back(L<span class="charliteral">'\0'</span>);</div> -<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keywordflow">return</span> env_string;</div> -<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> }</div> +<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">// Populate the combined environment first with the system environment.</span></div> +<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <a class="code" href="foreach_8hpp.html#a66900b166526abe66464d6597536b111">foreachpair</a> (<span class="keyword">const</span> std::wstring& key,</div> +<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">const</span> std::wstring& value,</div> +<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  system_env.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>()) {</div> +<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  combined_env[key] = value;</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> </div> +<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// Now override with the supplied environment.</span></div> +<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <a class="code" href="foreach_8hpp.html#a66900b166526abe66464d6597536b111">foreachpair</a> (<span class="keyword">const</span> std::string& key,</div> +<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keyword">const</span> std::string& value,</div> +<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  env.get()) {</div> +<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  combined_env[wide_stringify(key)] = wide_stringify(value);</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> </div> +<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  std::wstring env_string;</div> +<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <a class="code" href="foreach_8hpp.html#a66900b166526abe66464d6597536b111">foreachpair</a> (<span class="keyword">const</span> std::wstring& key,</div> +<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">const</span> std::wstring& value,</div> +<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  combined_env) {</div> +<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  env_string += key + L<span class="charliteral">'='</span> + value + L<span class="charliteral">'\0'</span>;</div> +<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  }</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="comment">// Append final null terminating character.</span></div> +<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  env_string.push_back(L<span class="charliteral">'\0'</span>);</div> +<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">return</span> env_string;</div> +<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> }</div> +<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> </div> <div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div> -<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div> -<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="comment">// Concatenates multiple command-line arguments and escapes the values.</span></div> -<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment">// NOTE: This is necessary even when using Windows APIs that "appear"</span></div> -<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment">// to take arguments as a list, because those APIs will themselves</span></div> -<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment">// concatenate command-line arguments *without* escaping them.</span></div> -<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment">//</span></div> -<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment">// This function escapes arguments with the following rules:</span></div> -<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment">// 1) Any argument with a space, tab, newline, vertical tab,</span></div> -<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment">// or double-quote must be surrounded in double-quotes.</span></div> -<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment">// 2) Backslashes at the very end of an argument must be escaped.</span></div> -<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment">// 3) Backslashes that precede a double-quote must be escaped.</span></div> -<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment">// The double-quote must also be escaped.</span></div> -<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment">//</span></div> -<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment">// NOTE: The below algorithm is adapted from Daniel Colascione's public domain</span></div> -<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment">// algorithm for quoting command line arguments on Windows for `CreateProcess`.</span></div> -<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment">//</span></div> -<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment">// https://blogs.msdn.microsoft.com/twistylittlepassagesallalike/2011/04/23/everyone-quotes-command-line-arguments-the-wrong-way/</span></div> -<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <span class="comment">// NOLINT(whitespace/line_length)</span></div> -<div class="line"><a name="l00164"></a><span class="lineno"><a class="line" href="namespaceinternal_1_1windows.html#a80d683d0925b1bfbff4bea3a5aa2e9b9"> 164</a></span> <span class="keyword">inline</span> std::wstring <a class="code" href="namespaceinternal_1_1windows.html#a80d683d0925b1bfbff4bea3a5aa2e9b9">stringify_args</a>(<span class="keyword">const</span> std::vector<std::string>& argv)</div> -<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> {</div> -<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  std::wstring command;</div> -<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> argit = argv.cbegin(); argit != argv.cend(); ++argit) {</div> -<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  std::wstring arg = wide_stringify(*argit);</div> -<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="comment">// Don't quote empty arguments or those without troublesome characters.</span></div> -<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordflow">if</span> (!arg.empty() && arg.find_first_of(L<span class="stringliteral">" \t\n\v\""</span>) == arg.npos) {</div> -<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  command.append(arg);</div> -<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">// Beginning double quotation mark.</span></div> -<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  command.push_back(L<span class="charliteral">'"'</span>);</div> -<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> it = arg.cbegin(); it != arg.cend(); ++it) {</div> -<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="comment">// Count existent backslashes in argument.</span></div> -<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> backslashes = 0;</div> -<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">while</span> (it != arg.cend() && *it == L<span class="charliteral">'\\'</span>) {</div> -<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  ++it;</div> -<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  ++backslashes;</div> -<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  }</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>  <span class="keywordflow">if</span> (it == arg.cend()) {</div> -<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// Escape all backslashes, but let the terminating double quotation</span></div> -<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// mark we add below be interpreted as a metacharacter.</span></div> -<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  command.append(backslashes * 2, L<span class="charliteral">'\\'</span>);</div> -<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">break</span>;</div> -<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (*it == L<span class="charliteral">'"'</span>) {</div> -<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="comment">// Escape all backslashes and the following double quotation mark.</span></div> -<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  command.append(backslashes * 2 + 1, L<span class="charliteral">'\\'</span>);</div> -<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  command.push_back(*it);</div> -<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  } <span class="keywordflow">else</span> {</div> -<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="comment">// Backslashes aren't special here.</span></div> -<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  command.append(backslashes, L<span class="charliteral">'\\'</span>);</div> -<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  command.push_back(*it);</div> -<div class="line"><a name="l00196"></a><span class="lineno"> 196</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>  <span class="comment">// Terminating double quotation mark.</span></div> -<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  command.push_back(L<span class="charliteral">'"'</span>);</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="comment">// Space separate arguments (but don't append at end).</span></div> -<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">if</span> (argit != argv.cend() - 1) {</div> -<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  command.push_back(L<span class="charliteral">' '</span>);</div> -<div class="line"><a name="l00205"></a><span class="lineno"> 205</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>  <span class="comment">// Append final null terminating character.</span></div> -<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  command.push_back(L<span class="charliteral">'\0'</span>);</div> -<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">return</span> command;</div> -<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> }</div> -<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> </div> -<div class="line"><a name="l00212"></a><span class="lineno"><a class="line" href="structinternal_1_1windows_1_1ProcessData.html"> 212</a></span> <span class="keyword">struct </span><a class="code" href="structinternal_1_1windows_1_1ProcessData.html">ProcessData</a> {</div> -<div class="line"><a name="l00213"></a><span class="lineno"><a class="line" href="structinternal_1_1windows_1_1ProcessData.html#a96c76121644bd430e9ca67cf57636c0d"> 213</a></span>  <a class="code" href="classSharedHandle.html">SharedHandle</a> <a class="code" href="structinternal_1_1windows_1_1ProcessData.html#a96c76121644bd430e9ca67cf57636c0d">process_handle</a>;</div> -<div class="line"><a name="l00214"></a><span class="lineno"><a class="line" href="structinternal_1_1windows_1_1ProcessData.html#a7160cf48fc6e70d9390233b246b93bee"> 214</a></span>  <a class="code" href="classSharedHandle.html">SharedHandle</a> <a class="code" href="structinternal_1_1windows_1_1ProcessData.html#a7160cf48fc6e70d9390233b246b93bee">thread_handle</a>;</div> -<div class="line"><a name="l00215"></a><span class="lineno"><a class="line" href="structinternal_1_1windows_1_1ProcessData.html#a65a4a4aba5450087363bfffdb30eea25"> 215</a></span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> <a class="code" href="structinternal_1_1windows_1_1ProcessData.html#a65a4a4aba5450087363bfffdb30eea25">pid</a>;</div> -<div class="line"><a name="l00216"></a><span class="lineno"> 216</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="comment">// Provides an interface for creating a child process on Windows.</span></div> -<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment">//</span></div> -<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment">// The `command` argument is given for compatibility, and is ignored. This is</span></div> -<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment">// because the `CreateProcess` will use `argv[0]` as the command to be executed,</span></div> -<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment">// and will perform a `PATH` lookup. If `command` were to be used instead,</span></div> -<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment">// `CreateProcess` would require an absolute path.</span></div> -<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment">//</span></div> -<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment">// If `create_suspended` is `true`, the process will not be started, and the</span></div> -<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment">// caller must use `ResumeThread` to start the process.</span></div> -<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment">//</span></div> -<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment">// The caller can specify explicit `stdin`, `stdout`, and `stderr` handles,</span></div> -<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment">// in that order, for the process via the `pipes` argument.</span></div> -<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment">//</span></div> -<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment">// The return value is a `ProcessData` struct, with the process and thread</span></div> -<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment">// handles each saved in a `SharedHandle`, ensuring they are closed when struct</span></div> -<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="comment">// goes out of scope.</span></div> -<div class="line"><a name="l00234"></a><span class="lineno"><a class="line" href="namespaceinternal_1_1windows.html#a2aa192bfa7f7cff72ec40efdfa983a72"> 234</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<ProcessData></a> <a class="code" href="namespaceinternal_1_1windows.html#a2aa192bfa7f7cff72ec40efdfa983a72">create_process</a>(</div> -<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keyword">const</span> std::string& command,</div> -<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keyword">const</span> std::vector<std::string>& argv,</div> -<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option</a><std::map<std::string, std::string>>& <a class="code" href="namespacemesos_1_1internal_1_1tests.html#a1396c5e3b0a179220de2792d74770ec2">environment</a>,</div> -<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> create_suspended = <span class="keyword">false</span>,</div> -<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option</a><std::tuple<int_fd, int_fd, int_fd>> pipes = <a class="code" href="structNone.html">None</a>())</div> -<div class="line"><a name="l00240"></a><span class="lineno"> 240</span> {</div> -<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="comment">// TODO(andschwa): Assert that `command` and `argv[0]` are the same.</span></div> -<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  std::wstring arg_string = <a class="code" href="namespaceinternal_1_1windows.html#a80d683d0925b1bfbff4bea3a5aa2e9b9">stringify_args</a>(argv);</div> -<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  std::vector<wchar_t> arg_buffer(arg_string.begin(), arg_string.end());</div> -<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  arg_buffer.push_back(L<span class="charliteral">'\0'</span>);</div> -<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div> -<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="comment">// Create the process with a Unicode environment.</span></div> -<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  DWORD creation_flags = CREATE_UNICODE_ENVIRONMENT;</div> -<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  <span class="keywordflow">if</span> (create_suspended) {</div> -<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  creation_flags |= CREATE_SUSPENDED;</div> -<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  }</div> -<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div> -<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="comment">// Construct the environment that will be passed to `::CreateProcessW`.</span></div> -<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <a class="code" href="classOption.html">Option<std::wstring></a> env_string = <a class="code" href="namespaceinternal_1_1windows.html#a7b6974b9ba88dd5d9658c40268147581">create_process_env</a>(<a class="code" href="namespacemesos_1_1internal_1_1tests.html#a1396c5e3b0a179220de2792d74770ec2">environment</a>);</div> -<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  std::vector<wchar_t> env_buffer;</div> -<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">if</span> (env_string.<a class="code" href="classOption.html#a4e3bf8416d95246f43c91f1b5c309323">isSome</a>()) {</div> -<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="comment">// This string contains the necessary null characters.</span></div> -<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  env_buffer.assign(env_string.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>().begin(), env_string.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>().end());</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> </div> -<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordtype">wchar_t</span>* process_env = env_buffer.empty() ? <span class="keyword">nullptr</span> : env_buffer.data();</div> -<div class="line"><a name="l00261"></a><span class="lineno"> 261</span> </div> -<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  PROCESS_INFORMATION process_info;</div> -<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  memset(&process_info, 0, <span class="keyword">sizeof</span>(PROCESS_INFORMATION));</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>  STARTUPINFOW startup_info;</div> -<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  memset(&startup_info, 0, <span class="keyword">sizeof</span>(STARTUPINFOW));</div> -<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  startup_info.cb = <span class="keyword">sizeof</span>(STARTUPINFOW);</div> -<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div> -<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="comment">// Hook up the stdin/out/err pipes and use the `STARTF_USESTDHANDLES`</span></div> -<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="comment">// flag to instruct the child to use them [1].</span></div> -<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment">// A more user-friendly example can be found in [2].</span></div> -<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="comment">//</span></div> -<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="comment">// [1] https://msdn.microsoft.com/en-us/library/windows/desktop/ms686331(v=vs.85).aspx</span></div> -<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="comment">// [2] https://msdn.microsoft.com/en-us/library/windows/desktop/ms682499(v=vs.85).aspx</span></div> -<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keywordflow">if</span> (pipes.isSome()) {</div> -<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  startup_info.hStdInput = std::get<0>(pipes.get());</div> -<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  startup_info.hStdOutput = std::get<1>(pipes.get());</div> -<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  startup_info.hStdError = std::get<2>(pipes.get());</div> -<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  startup_info.dwFlags |= STARTF_USESTDHANDLES;</div> -<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  }</div> -<div class="line"><a name="l00281"></a><span class="lineno"> 281</span> </div> -<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  BOOL create_process_result = ::CreateProcessW(</div> -<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">// This is replaced by the first token of `arg_buffer` string.</span></div> -<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  static_cast<LPCWSTR>(<span class="keyword">nullptr</span>),</div> -<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  static_cast<LPWSTR>(arg_buffer.data()),</div> -<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  static_cast<LPSECURITY_ATTRIBUTES>(<span class="keyword">nullptr</span>),</div> -<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keyword">static_cast<</span>LPSECURITY_ATTRIBUTES<span class="keyword">></span>(<span class="keyword">nullptr</span>),</div> -<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  TRUE, <span class="comment">// Inherited parent process handles.</span></div> -<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  creation_flags,</div> -<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  static_cast<LPVOID>(process_env),</div> -<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keyword">static_cast<</span>LPCWSTR<span class="keyword">></span>(<span class="keyword">nullptr</span>), <span class="comment">// Inherited working directory.</span></div> -<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  &startup_info,</div> -<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  &process_info);</div> -<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> </div> -<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keywordflow">if</span> (!create_process_result) {</div> -<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">return</span> <a class="code" href="classWindowsError.html">WindowsError</a>(</div> -<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="stringliteral">"Failed to call `CreateProcess`: "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(arg_string));</div> -<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  }</div> -<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> </div> -<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">return</span> <a class="code" href="structinternal_1_1windows_1_1ProcessData.html">ProcessData</a>{</div> -<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <a class="code" href="classSharedHandle.html">SharedHandle</a>{process_info.hProcess, ::CloseHandle},</div> -<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <a class="code" href="classSharedHandle.html">SharedHandle</a>{process_info.hThread, ::CloseHandle},</div> -<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keyword">static_cast<</span><a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a><span class="keyword">></span>(process_info.dwProcessId)};</div> -<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> }</div> -<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> </div> -<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> } <span class="comment">// namespace windows {</span></div> -<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> </div> -<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> } <span class="comment">// namespace internal {</span></div> -<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> </div> -<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="keyword">namespace </span>os {</div> -<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div> -<div class="line"><a name="l00312"></a><span class="lineno"> 312</span> <span class="keyword">namespace </span>Shell {</div> -<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div> -<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="comment">// Canonical constants used as platform-dependent args to `exec` calls.</span></div> -<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="comment">// `name` is the command name, `arg0` is the first argument received</span></div> -<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="comment">// by the callee, usually the command name and `arg1` is the second</span></div> -<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> <span class="comment">// command argument received by the callee.</span></div> -<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> constexpr <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a> = <span class="stringliteral">"cmd.exe"</span>;</div> -<div class="line"><a name="l00319"></a><span class="lineno"> 319</span> constexpr <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="namespaceos_1_1Shell.html#adeacb41dacfa03ad5ceebd9a53582997">arg0</a> = <span class="stringliteral">"cmd.exe"</span>;</div> -<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> constexpr <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="namespaceos_1_1Shell.html#a44f50f66f2a231de974b53c9f4384ba5">arg1</a> = <span class="stringliteral">"/c"</span>;</div> -<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> </div> -<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> } <span class="comment">// namespace Shell {</span></div> -<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div> -<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="keyword">template</span> <<span class="keyword">typename</span>... T></div> -<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> <a class="code" href="classTry.html">Try<std::string></a> <a class="code" href="namespaceos.html#a0d86320d7799ea761599bc356c02a4fa">shell</a>(<span class="keyword">const</span> std::string& fmt, <span class="keyword">const</span> T&... t) = <span class="keyword">delete</span>;</div> +<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> <span class="comment">// Concatenates multiple command-line arguments and escapes the values.</span></div> +<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="comment">// NOTE: This is necessary even when using Windows APIs that "appear"</span></div> +<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="comment">// to take arguments as a list, because those APIs will themselves</span></div> +<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> <span class="comment">// concatenate command-line arguments *without* escaping them.</span></div> +<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="comment">//</span></div> +<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="comment">// This function escapes arguments with the following rules:</span></div> +<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="comment">// 1) Any argument with a space, tab, newline, vertical tab,</span></div> +<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment">// or double-quote must be surrounded in double-quotes.</span></div> +<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="comment">// 2) Backslashes at the very end of an argument must be escaped.</span></div> +<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="comment">// 3) Backslashes that precede a double-quote must be escaped.</span></div> +<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment">// The double-quote must also be escaped.</span></div> +<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> <span class="comment">//</span></div> +<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="comment">// NOTE: The below algorithm is adapted from Daniel Colascione's public domain</span></div> +<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="comment">// algorithm for quoting command line arguments on Windows for `CreateProcess`.</span></div> +<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="comment">//</span></div> +<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> <span class="comment">// https://blogs.msdn.microsoft.com/twistylittlepassagesallalike/2011/04/23/everyone-quotes-command-line-arguments-the-wrong-way/</span></div> +<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="comment">// NOLINT(whitespace/line_length)</span></div> +<div class="line"><a name="l00163"></a><span class="lineno"><a class="line" href="namespaceinternal_1_1windows.html#a80d683d0925b1bfbff4bea3a5aa2e9b9"> 163</a></span> <span class="keyword">inline</span> std::wstring <a class="code" href="namespaceinternal_1_1windows.html#a80d683d0925b1bfbff4bea3a5aa2e9b9">stringify_args</a>(<span class="keyword">const</span> std::vector<std::string>& argv)</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>  std::wstring command;</div> +<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> argit = argv.cbegin(); argit != argv.cend(); ++argit) {</div> +<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  std::wstring arg = wide_stringify(*argit);</div> +<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="comment">// Don't quote empty arguments or those without troublesome characters.</span></div> +<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">if</span> (!arg.empty() && arg.find_first_of(L<span class="stringliteral">" \t\n\v\""</span>) == arg.npos) {</div> +<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  command.append(arg);</div> +<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  } <span class="keywordflow">else</span> {</div> +<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="comment">// Beginning double quotation mark.</span></div> +<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  command.push_back(L<span class="charliteral">'"'</span>);</div> +<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">for</span> (<span class="keyword">auto</span> it = arg.cbegin(); it != arg.cend(); ++it) {</div> +<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="comment">// Count existent backslashes in argument.</span></div> +<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> backslashes = 0;</div> +<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">while</span> (it != arg.cend() && *it == L<span class="charliteral">'\\'</span>) {</div> +<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  ++it;</div> +<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  ++backslashes;</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> </div> +<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">if</span> (it == arg.cend()) {</div> +<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">// Escape all backslashes, but let the terminating double quotation</span></div> +<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// mark we add below be interpreted as a metacharacter.</span></div> +<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  command.append(backslashes * 2, L<span class="charliteral">'\\'</span>);</div> +<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">break</span>;</div> +<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (*it == L<span class="charliteral">'"'</span>) {</div> +<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="comment">// Escape all backslashes and the following double quotation mark.</span></div> +<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  command.append(backslashes * 2 + 1, L<span class="charliteral">'\\'</span>);</div> +<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  command.push_back(*it);</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>  <span class="comment">// Backslashes aren't special here.</span></div> +<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  command.append(backslashes, L<span class="charliteral">'\\'</span>);</div> +<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  command.push_back(*it);</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>  }</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>  <span class="comment">// Terminating double quotation mark.</span></div> +<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  command.push_back(L<span class="charliteral">'"'</span>);</div> +<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  }</div> +<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">// Space separate arguments (but don't append at end).</span></div> +<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">if</span> (argit != argv.cend() - 1) {</div> +<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  command.push_back(L<span class="charliteral">' '</span>);</div> +<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  }</div> +<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  }</div> +<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="comment">// Append final null terminating character.</span></div> +<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  command.push_back(L<span class="charliteral">'\0'</span>);</div> +<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">return</span> command;</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> </div> +<div class="line"><a name="l00211"></a><span class="lineno"><a class="line" href="structinternal_1_1windows_1_1ProcessData.html"> 211</a></span> <span class="keyword">struct </span><a class="code" href="structinternal_1_1windows_1_1ProcessData.html">ProcessData</a> {</div> +<div class="line"><a name="l00212"></a><span class="lineno"><a class="line" href="structinternal_1_1windows_1_1ProcessData.html#a96c76121644bd430e9ca67cf57636c0d"> 212</a></span>  <a class="code" href="classSharedHandle.html">SharedHandle</a> <a class="code" href="structinternal_1_1windows_1_1ProcessData.html#a96c76121644bd430e9ca67cf57636c0d">process_handle</a>;</div> +<div class="line"><a name="l00213"></a><span class="lineno"><a class="line" href="structinternal_1_1windows_1_1ProcessData.html#a7160cf48fc6e70d9390233b246b93bee"> 213</a></span>  <a class="code" href="classSharedHandle.html">SharedHandle</a> <a class="code" href="structinternal_1_1windows_1_1ProcessData.html#a7160cf48fc6e70d9390233b246b93bee">thread_handle</a>;</div> +<div class="line"><a name="l00214"></a><span class="lineno"><a class="line" href="structinternal_1_1windows_1_1ProcessData.html#a65a4a4aba5450087363bfffdb30eea25"> 214</a></span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a> <a class="code" href="structinternal_1_1windows_1_1ProcessData.html#a65a4a4aba5450087363bfffdb30eea25">pid</a>;</div> +<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> };</div> +<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div> +<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment">// Provides an interface for creating a child process on Windows.</span></div> +<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="comment">//</span></div> +<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="comment">// The `command` argument is given for compatibility, and is ignored. This is</span></div> +<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> <span class="comment">// because the `CreateProcess` will use `argv[0]` as the command to be executed,</span></div> +<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="comment">// and will perform a `PATH` lookup. If `command` were to be used instead,</span></div> +<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="comment">// `CreateProcess` would require an absolute path.</span></div> +<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="comment">//</span></div> +<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="comment">// If `create_suspended` is `true`, the process will not be started, and the</span></div> +<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="comment">// caller must use `ResumeThread` to start the process.</span></div> +<div class="line"><a name="l00226"></a><span class="lineno"> 226</span> <span class="comment">//</span></div> +<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="comment">// The caller can specify explicit `stdin`, `stdout`, and `stderr` handles,</span></div> +<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="comment">// in that order, for the process via the `pipes` argument.</span></div> +<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="comment">//</span></div> +<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> <span class="comment">// The return value is a `ProcessData` struct, with the process and thread</span></div> +<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="comment">// handles each saved in a `SharedHandle`, ensuring they are closed when struct</span></div> +<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="comment">// goes out of scope.</span></div> +<div class="line"><a name="l00233"></a><span class="lineno"><a class="line" href="namespaceinternal_1_1windows.html#a2aa192bfa7f7cff72ec40efdfa983a72"> 233</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<ProcessData></a> <a class="code" href="namespaceinternal_1_1windows.html#a2aa192bfa7f7cff72ec40efdfa983a72">create_process</a>(</div> +<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keyword">const</span> std::string& command,</div> +<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keyword">const</span> std::vector<std::string>& argv,</div> +<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option</a><std::map<std::string, std::string>>& <a class="code" href="namespacemesos_1_1internal_1_1tests.html#a1396c5e3b0a179220de2792d74770ec2">environment</a>,</div> +<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> create_suspended = <span class="keyword">false</span>,</div> +<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option</a><std::tuple<int_fd, int_fd, int_fd>> pipes = <a class="code" href="structNone.html">None</a>())</div> +<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> {</div> +<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="comment">// TODO(andschwa): Assert that `command` and `argv[0]` are the same.</span></div> +<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  std::wstring arg_string = <a class="code" href="namespaceinternal_1_1windows.html#a80d683d0925b1bfbff4bea3a5aa2e9b9">stringify_args</a>(argv);</div> +<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  std::vector<wchar_t> arg_buffer(arg_string.begin(), arg_string.end());</div> +<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  arg_buffer.push_back(L<span class="charliteral">'\0'</span>);</div> +<div class="line"><a name="l00244"></a><span class="lineno"> 244</span> </div> +<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="comment">// Create the process with a Unicode environment.</span></div> +<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  DWORD creation_flags = CREATE_UNICODE_ENVIRONMENT;</div> +<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">if</span> (create_suspended) {</div> +<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  creation_flags |= CREATE_SUSPENDED;</div> +<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  }</div> +<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div> +<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="comment">// Construct the environment that will be passed to `::CreateProcessW`.</span></div> +<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <a class="code" href="classOption.html">Option<std::wstring></a> env_string = <a class="code" href="namespaceinternal_1_1windows.html#a7b6974b9ba88dd5d9658c40268147581">create_process_env</a>(<a class="code" href="namespacemesos_1_1internal_1_1tests.html#a1396c5e3b0a179220de2792d74770ec2">environment</a>);</div> +<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  std::vector<wchar_t> env_buffer;</div> +<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">if</span> (env_string.<a class="code" href="classOption.html#a4e3bf8416d95246f43c91f1b5c309323">isSome</a>()) {</div> +<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="comment">// This string contains the necessary null characters.</span></div> +<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  env_buffer.assign(env_string.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>().begin(), env_string.<a class="code" href="classOption.html#a21358442c0fac1cc978a67a9a9089a79">get</a>().end());</div> +<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  }</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="keywordtype">wchar_t</span>* process_env = env_buffer.empty() ? <span class="keyword">nullptr</span> : env_buffer.data();</div> +<div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div> +<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  PROCESS_INFORMATION process_info;</div> +<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  memset(&process_info, 0, <span class="keyword">sizeof</span>(PROCESS_INFORMATION));</div> +<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div> +<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  STARTUPINFOW startup_info;</div> +<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  memset(&startup_info, 0, <span class="keyword">sizeof</span>(STARTUPINFOW));</div> +<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  startup_info.cb = <span class="keyword">sizeof</span>(STARTUPINFOW);</div> +<div class="line"><a name="l00267"></a><span class="lineno"> 267</span> </div> +<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="comment">// Hook up the stdin/out/err pipes and use the `STARTF_USESTDHANDLES`</span></div> +<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="comment">// flag to instruct the child to use them [1].</span></div> +<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="comment">// A more user-friendly example can be found in [2].</span></div> +<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment">//</span></div> +<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="comment">// [1] https://msdn.microsoft.com/en-us/library/windows/desktop/ms686331(v=vs.85).aspx</span></div> +<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  <span class="comment">// [2] https://msdn.microsoft.com/en-us/library/windows/desktop/ms682499(v=vs.85).aspx</span></div> +<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  <span class="keywordflow">if</span> (pipes.isSome()) {</div> +<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  startup_info.hStdInput = std::get<0>(pipes.get());</div> +<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  startup_info.hStdOutput = std::get<1>(pipes.get());</div> +<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  startup_info.hStdError = std::get<2>(pipes.get());</div> +<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  startup_info.dwFlags |= STARTF_USESTDHANDLES;</div> +<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>  }</div> +<div class="line"><a name="l00280"></a><span class="lineno"> 280</span> </div> +<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  BOOL create_process_result = ::CreateProcessW(</div> +<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="comment">// This is replaced by the first token of `arg_buffer` string.</span></div> +<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  static_cast<LPCWSTR>(<span class="keyword">nullptr</span>),</div> +<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  static_cast<LPWSTR>(arg_buffer.data()),</div> +<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  static_cast<LPSECURITY_ATTRIBUTES>(<span class="keyword">nullptr</span>),</div> +<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>  <span class="keyword">static_cast<</span>LPSECURITY_ATTRIBUTES<span class="keyword">></span>(<span class="keyword">nullptr</span>),</div> +<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  TRUE, <span class="comment">// Inherited parent process handles.</span></div> +<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  creation_flags,</div> +<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  static_cast<LPVOID>(process_env),</div> +<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  <span class="keyword">static_cast<</span>LPCWSTR<span class="keyword">></span>(<span class="keyword">nullptr</span>), <span class="comment">// Inherited working directory.</span></div> +<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  &startup_info,</div> +<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  &process_info);</div> +<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> </div> +<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  <span class="keywordflow">if</span> (!create_process_result) {</div> +<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  <span class="keywordflow">return</span> <a class="code" href="classWindowsError.html">WindowsError</a>(</div> +<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="stringliteral">"Failed to call `CreateProcess`: "</span> + <a class="code" href="namespacens.html#a28116b46e6543597a11733424cd1aa20">stringify</a>(arg_string));</div> +<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  }</div> +<div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div> +<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keywordflow">return</span> <a class="code" href="structinternal_1_1windows_1_1ProcessData.html">ProcessData</a>{</div> +<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <a class="code" href="classSharedHandle.html">SharedHandle</a>{process_info.hProcess, ::CloseHandle},</div> +<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <a class="code" href="classSharedHandle.html">SharedHandle</a>{process_info.hThread, ::CloseHandle},</div> +<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  <span class="keyword">static_cast<</span><a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#ab03ced250ed239bc3b50b669493997f9">pid_t</a><span class="keyword">></span>(process_info.dwProcessId)};</div> +<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> }</div> +<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> </div> +<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> } <span class="comment">// namespace windows {</span></div> +<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> </div> +<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> } <span class="comment">// namespace internal {</span></div> +<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div> +<div class="line"><a name="l00309"></a><span class="lineno"> 309</span> <span class="keyword">namespace </span>os {</div> +<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> </div> +<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> <span class="keyword">namespace </span>Shell {</div> +<div class="line"><a name="l00312"></a><span class="lineno"> 312</span> </div> +<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="comment">// Canonical constants used as platform-dependent args to `exec` calls.</span></div> +<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="comment">// `name` is the command name, `arg0` is the first argument received</span></div> +<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="comment">// by the callee, usually the command name and `arg1` is the second</span></div> +<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="comment">// command argument received by the callee.</span></div> +<div class="line"><a name="l00317"></a><span class="lineno"> 317</span> constexpr <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">name</a> = <span class="stringliteral">"cmd.exe"</span>;</div> +<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> constexpr <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="namespaceos_1_1Shell.html#adeacb41dacfa03ad5ceebd9a53582997">arg0</a> = <span class="stringliteral">"cmd.exe"</span>;</div> +<div class="line"><a name="l00319"></a><span class="lineno"> 319</span> constexpr <span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="namespaceos_1_1Shell.html#a44f50f66f2a231de974b53c9f4384ba5">arg1</a> = <span class="stringliteral">"/c"</span>;</div> +<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> </div> +<div class="line"><a name="l00321"></a><span class="lineno"> 321</span> } <span class="comment">// namespace Shell {</span></div> +<div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div> +<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="keyword">template</span> <<span class="keyword">typename</span>... T></div> +<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <a class="code" href="classTry.html">Try<std::string></a> <a class="code" href="namespaceos.html#a0d86320d7799ea761599bc356c02a4fa">shell</a>(<span class="keyword">const</span> std::string& fmt, <span class="keyword">const</span> T&... t) = <span class="keyword">delete</span>;</div> +<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> </div> <div class="line"><a name="l00326"></a><span class="lineno"> 326</span> </div> -<div class="line"><a name="l00327"></a><span class="lineno"> 327</span> </div> -<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> <span class="keyword">template</span><<span class="keyword">typename</span>... T></div> -<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="namespaceos.html#a4b727e301623549c37cdfcd8c553a2c7">execlp</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a>, T... t) = <span class="keyword">delete</span>;</div> +<div class="line"><a name="l00327"></a><span class="lineno"> 327</span> <span class="keyword">template</span><<span class="keyword">typename</span>... T></div> +<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="namespaceos.html#a4b727e301623549c37cdfcd8c553a2c7">execlp</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* <a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a>, T... t) = <span class="keyword">delete</span>;</div> +<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div> <div class="line"><a name="l00330"></a><span class="lineno"> 330</span> </div> -<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> </div> -<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="comment">// Executes a command by calling "<command> <arguments...>", and</span></div> -<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="comment">// returns after the command has been completed. Returns process exit code if</span></div> -<div class="line"><a name="l00334"></a><span class="lineno"> 334</span> <span class="comment">// succeeds, and -1 on error.</span></div> -<div class="line"><a name="l00335"></a><span class="lineno"><a class="line" href="namespaceos.html#a39f1d0cc7f9358c79eb49df3cbbc77f4"> 335</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="namespaceprocess.html#aff22904a83567125d3b4d0d88e5a2270">spawn</a>(</div> -<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keyword">const</span> std::string& command,</div> -<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keyword">const</span> std::vector<std::string>& arguments,</div> -<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option</a><std::map<std::string, std::string>>& <a class="code" href="namespacemesos_1_1internal_1_1tests.html#a1396c5e3b0a179220de2792d74770ec2">environment</a> = <a class="code" href="structNone.html">None</a>())</div> -<div class="line"><a name="l00339"></a><span class="lineno"> 339</span> {</div> -<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <a class="code" href="classTry.html">Try<::internal::windows::ProcessData></a> process_data =</div> -<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <a class="code" href="namespaceinternal_1_1windows.html#a2aa192bfa7f7cff72ec40efdfa983a72">::internal::windows::create_process</a>(command, arguments, <a class="code" href="namespacemesos_1_1internal_1_1tests.html#a1396c5e3b0a179220de2792d74770ec2">environment</a>);</div> -<div class="line"><a name="l00342"></a><span class="lineno"> 342</span> </div> -<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  <span class="keywordflow">if</span> (process_data.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> -<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  LOG(WARNING) << process_data.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>();</div> -<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="keywordflow">return</span> -1;</div> -<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  }</div> -<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> </div> -<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="comment">// Wait for the process synchronously.</span></div> -<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  ::WaitForSingleObject(</div> -<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  process_data.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>().<a class="code" href="structinternal_1_1windows_1_1ProcessData.html#a96c76121644bd430e9ca67cf57636c0d">process_handle</a>.<a class="code" href="classSharedHandle.html#a800385e17e17cb826147968e748fd8fa">get_handle</a>(), INFINITE);</div> -<div class="line"><a name="l00351"></a><span class="lineno"> 351</span> </div> -<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  DWORD <a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">status</a>;</div> -<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="keywordflow">if</span> (!::GetExitCodeProcess(</div> -<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  process_data.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>().<a class="code" href="structinternal_1_1windows_1_1ProcessData.html#a96c76121644bd430e9ca67cf57636c0d">process_handle</a>.<a class="code" href="classSharedHandle.html#a800385e17e17cb826147968e748fd8fa">get_handle</a>(),</div> -<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  &<a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">status</a>)) {</div> -<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  LOG(WARNING) << <span class="stringliteral">"Failed to `GetExitCodeProcess`: "</span> << command;</div> -<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">return</span> -1;</div> -<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  }</div> -<div class="line"><a name="l00359"></a><span class="lineno"> 359</span> </div> -<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="comment">// Return the child exit code.</span></div> -<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(<a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">status</a>);</div> -<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> }</div> +<div class="line"><a name="l00331"></a><span class="lineno"> 331</span> <span class="comment">// Executes a command by calling "<command> <arguments...>", and</span></div> +<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> <span class="comment">// returns after the command has been completed. Returns process exit code if</span></div> +<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> <span class="comment">// succeeds, and -1 on error.</span></div> +<div class="line"><a name="l00334"></a><span class="lineno"><a class="line" href="namespaceos.html#a39f1d0cc7f9358c79eb49df3cbbc77f4"> 334</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="namespaceprocess.html#aff22904a83567125d3b4d0d88e5a2270">spawn</a>(</div> +<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keyword">const</span> std::string& command,</div> +<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keyword">const</span> std::vector<std::string>& arguments,</div> +<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keyword">const</span> <a class="code" href="classOption.html">Option</a><std::map<std::string, std::string>>& <a class="code" href="namespacemesos_1_1internal_1_1tests.html#a1396c5e3b0a179220de2792d74770ec2">environment</a> = <a class="code" href="structNone.html">None</a>())</div> +<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> {</div> +<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  <a class="code" href="classTry.html">Try<::internal::windows::ProcessData></a> process_data =</div> +<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <a class="code" href="namespaceinternal_1_1windows.html#a2aa192bfa7f7cff72ec40efdfa983a72">::internal::windows::create_process</a>(command, arguments, <a class="code" href="namespacemesos_1_1internal_1_1tests.html#a1396c5e3b0a179220de2792d74770ec2">environment</a>);</div> +<div class="line"><a name="l00341"></a><span class="lineno"> 341</span> </div> +<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keywordflow">if</span> (process_data.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> +<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  LOG(WARNING) << process_data.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>();</div> +<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">return</span> -1;</div> +<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  }</div> +<div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div> +<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="comment">// Wait for the process synchronously.</span></div> +<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  ::WaitForSingleObject(</div> +<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  process_data.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>().<a class="code" href="structinternal_1_1windows_1_1ProcessData.html#a96c76121644bd430e9ca67cf57636c0d">process_handle</a>.<a class="code" href="classSharedHandle.html#a800385e17e17cb826147968e748fd8fa">get_handle</a>(), INFINITE);</div> +<div class="line"><a name="l00350"></a><span class="lineno"> 350</span> </div> +<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  DWORD <a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">status</a>;</div> +<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  <span class="keywordflow">if</span> (!::GetExitCodeProcess(</div> +<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  process_data.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>().<a class="code" href="structinternal_1_1windows_1_1ProcessData.html#a96c76121644bd430e9ca67cf57636c0d">process_handle</a>.<a class="code" href="classSharedHandle.html#a800385e17e17cb826147968e748fd8fa">get_handle</a>(),</div> +<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  &<a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">status</a>)) {</div> +<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  LOG(WARNING) << <span class="stringliteral">"Failed to `GetExitCodeProcess`: "</span> << command;</div> +<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keywordflow">return</span> -1;</div> +<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  }</div> +<div class="line"><a name="l00358"></a><span class="lineno"> 358</span> </div> +<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="comment">// Return the child exit code.</span></div> +<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordflow">return</span> <span class="keyword">static_cast<</span><span class="keywordtype">int</span><span class="keyword">></span>(<a class="code" href="namespaceproc.html#a34396c6140a28f583dc13fee3c3c35d4">status</a>);</div> +<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> }</div> +<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> </div> <div class="line"><a name="l00363"></a><span class="lineno"> 363</span> </div> -<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> </div> -<div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="comment">// Executes a command by calling "cmd /c <command>", and returns</span></div> -<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="comment">// after the command has been completed. Returns exit code if succeeds, and</span></div> -<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="comment">// return -1 on error.</span></div> -<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="comment">//</span></div> -<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="comment">// Note: Be cautious about shell injection</span></div> -<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="comment">// (https://en.wikipedia.org/wiki/Code_injection#Shell_injection)</span></div> -<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="comment">// when using this method and use proper validation and sanitization</span></div> -<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="comment">// on the `command`. For this reason in general `os::spawn` is</span></div> -<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="comment">// preferred if a shell is not required.</span></div> -<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="namespaceos.html#a3491ce5d4a57fcac5ca2e3ca40abe176">system</a>(<span class="keyword">const</span> std::string& command)</div> -<div class="line"><a name="l00375"></a><span class="lineno"> 375</span> {</div> -<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceos.html#a59cf3d26475f4001630e0e362e7a3ff7">os::spawn</a>(<a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">Shell::name</a>, {<a class="code" href="namespaceos_1_1Shell.html#adeacb41dacfa03ad5ceebd9a53582997">Shell::arg0</a>, <a class="code" href="namespaceos_1_1Shell.html#a44f50f66f2a231de974b53c9f4384ba5">Shell::arg1</a>, command});</div> -<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> }</div> +<div class="line"><a name="l00364"></a><span class="lineno"> 364</span> <span class="comment">// Executes a command by calling "cmd /c <command>", and returns</span></div> +<div class="line"><a name="l00365"></a><span class="lineno"> 365</span> <span class="comment">// after the command has been completed. Returns exit code if succeeds, and</span></div> +<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> <span class="comment">// return -1 on error.</span></div> +<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> <span class="comment">//</span></div> +<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="comment">// Note: Be cautious about shell injection</span></div> +<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> <span class="comment">// (https://en.wikipedia.org/wiki/Code_injection#Shell_injection)</span></div> +<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> <span class="comment">// when using this method and use proper validation and sanitization</span></div> +<div class="line"><a name="l00371"></a><span class="lineno"> 371</span> <span class="comment">// on the `command`. For this reason in general `os::spawn` is</span></div> +<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> <span class="comment">// preferred if a shell is not required.</span></div> +<div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="namespaceos.html#a3491ce5d4a57fcac5ca2e3ca40abe176">system</a>(<span class="keyword">const</span> std::string& command)</div> +<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> {</div> +<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceos.html#a59cf3d26475f4001630e0e362e7a3ff7">os::spawn</a>(<a class="code" href="namespaceos_1_1Shell.html#acfe16ef2b1146ad49a8651c0a457ce46">Shell::name</a>, {<a class="code" href="namespaceos_1_1Shell.html#adeacb41dacfa03ad5ceebd9a53582997">Shell::arg0</a>, <a class="code" href="namespaceos_1_1Shell.html#a44f50f66f2a231de974b53c9f4384ba5">Shell::arg1</a>, command});</div> +<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> }</div> +<div class="line"><a name="l00377"></a><span class="lineno"> 377</span> </div> <div class="line"><a name="l00378"></a><span class="lineno"> 378</span> </div> -<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> </div> -<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="comment">// In order to emulate the semantics of `execvp`, `os::spawn` waits for the new</span></div> -<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="comment">// process to exit, and returns its error code, which is propogated back to the</span></div> -<div class="line"><a name="l00382"></a><span class="lineno"> 382</span> <span class="comment">// parent via `exit` here.</span></div> -<div class="line"><a name="l00383"></a><span class="lineno"><a class="line" href="namespaceos.html#a1de77f208d0bc72cf79e7eb9a6b487c7"> 383</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="namespaceos.html#a0b80877b34088be8d5ba3eb9b0567ed7">execvp</a>(</div> -<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keyword">const</span> std::string& command,</div> -<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  <span class="keyword">const</span> std::vector<std::string>& argv)</div> -<div class="line"><a name="l00386"></a><span class="lineno"> 386</span> {</div> -<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  exit(<a class="code" href="namespaceos.html#a59cf3d26475f4001630e0e362e7a3ff7">os::spawn</a>(command, argv));</div> -<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordflow">return</span> -1;</div> -<div class="line"><a name="l00389"></a><span class="lineno"> 389</span> }</div> +<div class="line"><a name="l00379"></a><span class="lineno"> 379</span> <span class="comment">// In order to emulate the semantics of `execvp`, `os::spawn` waits for the new</span></div> +<div class="line"><a name="l00380"></a><span class="lineno"> 380</span> <span class="comment">// process to exit, and returns its error code, which is propogated back to the</span></div> +<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="comment">// parent via `exit` here.</span></div> +<div class="line"><a name="l00382"></a><span class="lineno"><a class="line" href="namespaceos.html#a1de77f208d0bc72cf79e7eb9a6b487c7"> 382</a></span> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="namespaceos.html#a0b80877b34088be8d5ba3eb9b0567ed7">execvp</a>(</div> +<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keyword">const</span> std::string& command,</div> +<div class="line"><a name="l00384"></a><span class="lineno"> 384</spa
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