about summary refs log tree commit diff stats
path: root/LICENSE
blob: 67e22c37c3a994e66539612cb02de910eca91baa (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
MIT/X Consortium License

(C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
(C)opyright MMVI Sander van Dijk <a dot h dot vandijk at gmail dot com>

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the 
Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in 
all copies or substantial portions of the Software. 

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL 
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
DEALINGS IN THE SOFTWARE.
8' href='#n228'>228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Mu - 091socket.cc</title>
<meta name="Generator" content="Vim/7.4">
<meta name="plugin-version" content="vim7.4_v2">
<meta name="syntax" content="cpp">
<meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy=">
<meta name="colorscheme" content="minimal">
<style type="text/css">
<!--
pre { white-space: pre-wrap; font-family: monospace; color: #aaaaaa; background-color: #080808; }
body { font-size: 12pt; font-family: monospace; color: #aaaaaa; background-color: #080808; }
a { color:#eeeeee; text-decoration: none; }
a:hover { text-decoration: underline; }
* { font-size: 12pt; font-size: 1em; }
.Constant { color: #00a0a0; }
.Comment { color: #9090ff; }
.Comment a { color:#0000ee; text-decoration:underline; }
.Delimiter { color: #800080; }
.LineNr { color: #444444; }
.Identifier { color: #c0a020; }
.Normal { color: #aaaaaa; background-color: #080808; padding-bottom: 1px; }
.PreProc { color: #800080; }
.CommentedCode { color: #6c6c6c; }
.cSpecial { color: #008000; }
-->
</style>

<script type='text/javascript'>
<!--

/* function to open any folds containing a jumped-to line before jumping to it */
function JumpToLine()
{
  var lineNum;
  lineNum = window.location.hash;
  lineNum = lineNum.substr(1); /* strip off '#' */

  if (lineNum.indexOf('L') == -1) {
    lineNum = 'L'+lineNum;
  }
  lineElem = document.getElementById(lineNum);
  /* Always jump to new location even if the line was hidden inside a fold, or
   * we corrected the raw number to a line ID.
   */
  if (lineElem) {
    lineElem.scrollIntoView(true);
  }
  return true;
}
if ('onhashchange' in window) {
  window.onhashchange = JumpToLine;
}

-->
</script>
</head>
<body onload='JumpToLine();'>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr">  1 </span><span class="Delimiter">:(before &quot;End Types&quot;)</span>
<span id="L2" class="LineNr">  2 </span><span class="Normal">struct</span> socket_t <span class="Delimiter">{</span>
<span id="L3" class="LineNr">  3 </span>  <span class="Normal">int</span> fd<span class="Delimiter">;</span>
<span id="L4" class="LineNr">  4 </span>  sockaddr_in addr<span class="Delimiter">;</span>
<span id="L5" class="LineNr">  5 </span>  <span class="Normal">bool</span> polled<span class="Delimiter">;</span>
<span id="L6" class="LineNr">  6 </span>  socket_t<span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L7" class="LineNr">  7 </span>    fd = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L8" class="LineNr">  8 </span>    polled = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L9" class="LineNr">  9 </span>    bzero<span class="Delimiter">(</span>&amp;addr<span class="Delimiter">,</span> <span class="Normal">sizeof</span><span class="Delimiter">(</span>addr<span class="Delimiter">));</span>
<span id="L10" class="LineNr"> 10 </span>  <span class="Delimiter">}</span>
<span id="L11" class="LineNr"> 11 </span><span class="Delimiter">};</span>
<span id="L12" class="LineNr"> 12 </span>
<span id="L13" class="LineNr"> 13 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L14" class="LineNr"> 14 </span>_OPEN_CLIENT_SOCKET<span class="Delimiter">,</span>
<span id="L15" class="LineNr"> 15 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L16" class="LineNr"> 16 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$open-client-socket&quot;</span><span class="Delimiter">,</span> _OPEN_CLIENT_SOCKET<span class="Delimiter">);</span>
<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L18" class="LineNr"> 18 </span><span class="Normal">case</span> _OPEN_CLIENT_SOCKET: <span class="Delimiter">{</span>
<span id="L19" class="LineNr"> 19 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L20" class="LineNr"> 20 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-client-socket' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L21" class="LineNr"> 21 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L22" class="LineNr"> 22 </span>  <span class="Delimiter">}</span>
<span id="L23" class="LineNr"> 23 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_text<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L24" class="LineNr"> 24 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of '$open-client-socket' should be text (the hostname), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L25" class="LineNr"> 25 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L26" class="LineNr"> 26 </span>  <span class="Delimiter">}</span>
<span id="L27" class="LineNr"> 27 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L28" class="LineNr"> 28 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second ingredient of '$open-client-socket' should be a number (the port of the hostname to connect to), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L29" class="LineNr"> 29 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L30" class="LineNr"> 30 </span>  <span class="Delimiter">}</span>
<span id="L31" class="LineNr"> 31 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L32" class="LineNr"> 32 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-client-socket' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L33" class="LineNr"> 33 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L34" class="LineNr"> 34 </span>  <span class="Delimiter">}</span>
<span id="L35" class="LineNr"> 35 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L36" class="LineNr"> 36 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first product of '$open-client-socket' should be a number (socket handle), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L37" class="LineNr"> 37 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L38" class="LineNr"> 38 </span>  <span class="Delimiter">}</span>
<span id="L39" class="LineNr"> 39 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L40" class="LineNr"> 40 </span><span class="Delimiter">}</span>
<span id="L41" class="LineNr"> 41 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L42" class="LineNr"> 42 </span><span class="Normal">case</span> _OPEN_CLIENT_SOCKET: <span class="Delimiter">{</span>
<span id="L43" class="LineNr"> 43 </span>  string host = <a href='038new_text.cc.html#L141'>read_mu_text</a><span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span id="L44" class="LineNr"> 44 </span>  <span class="Normal">int</span> port = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L45" class="LineNr"> 45 </span>  socket_t* client = <a href='091socket.cc.html#L57'>client_socket</a><span class="Delimiter">(</span>host<span class="Delimiter">,</span> port<span class="Delimiter">);</span>
<span id="L46" class="LineNr"> 46 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L47" class="LineNr"> 47 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>client<span class="Delimiter">-&gt;</span>fd &lt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>  <span class="Comment">// error</span>
<span id="L48" class="LineNr"> 48 </span>    <span class="Normal">delete</span> client<span class="Delimiter">;</span>
<span id="L49" class="LineNr"> 49 </span>    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L50" class="LineNr"> 50 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L51" class="LineNr"> 51 </span>  <span class="Delimiter">}</span>
<span id="L52" class="LineNr"> 52 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> result = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>client<span class="Delimiter">);</span>
<span id="L53" class="LineNr"> 53 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Normal">static_cast</span>&lt;<span class="Normal">double</span>&gt;<span class="Delimiter">(</span>result<span class="Delimiter">));</span>
<span id="L54" class="LineNr"> 54 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L55" class="LineNr"> 55 </span><span class="Delimiter">}</span>
<span id="L56" class="LineNr"> 56 </span><span class="Delimiter">:(code)</span>
<span id="L57" class="LineNr"> 57 </span>socket_t* <a href='091socket.cc.html#L57'>client_socket</a><span class="Delimiter">(</span><span class="Normal">const</span> string&amp; host<span class="Delimiter">,</span> <span class="Normal">int</span> port<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L58" class="LineNr"> 58 </span>  socket_t* result = <span class="Normal">new</span> socket_t<span class="Delimiter">;</span>
<span id="L59" class="LineNr"> 59 </span>  result<span class="Delimiter">-&gt;</span>fd = socket<span class="Delimiter">(</span>AF_INET<span class="Delimiter">,</span> SOCK_STREAM<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L60" class="LineNr"> 60 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">-&gt;</span>fd &lt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L61" class="LineNr"> 61 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <span class="Constant">&quot;Failed to create socket.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L62" class="LineNr"> 62 </span>    <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L63" class="LineNr"> 63 </span>  <span class="Delimiter">}</span>
<span id="L64" class="LineNr"> 64 </span>  result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">.</span>sin_family = AF_INET<span class="Delimiter">;</span>
<span id="L65" class="LineNr"> 65 </span>  hostent* tmp = gethostbyname<span class="Delimiter">(</span>host<span class="Delimiter">.</span>c_str<span class="Delimiter">());</span>
<span id="L66" class="LineNr"> 66 </span>  bcopy<span class="Delimiter">(</span>tmp<span class="Delimiter">-&gt;</span>h_addr<span class="Delimiter">,</span> <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">char</span>*&gt;<span class="Delimiter">(</span>&amp;result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">.</span>sin_addr<span class="Delimiter">.</span>s_addr<span class="Delimiter">),</span> tmp<span class="Delimiter">-&gt;</span>h_length<span class="Delimiter">);</span>
<span id="L67" class="LineNr"> 67 </span>  result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">.</span>sin_port = htons<span class="Delimiter">(</span>port<span class="Delimiter">);</span>
<span id="L68" class="LineNr"> 68 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>connect<span class="Delimiter">(</span>result<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">,</span> <span class="Normal">reinterpret_cast</span>&lt;sockaddr*&gt;<span class="Delimiter">(</span>&amp;result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">),</span> <span class="Normal">sizeof</span><span class="Delimiter">(</span>result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">))</span> &lt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L69" class="LineNr"> 69 </span>    close<span class="Delimiter">(</span>result<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">);</span>
<span id="L70" class="LineNr"> 70 </span>    result<span class="Delimiter">-&gt;</span>fd = -<span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L71" class="LineNr"> 71 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <span class="Constant">&quot;Failed to connect to &quot;</span> &lt;&lt; host &lt;&lt; <span class="Constant">':'</span> &lt;&lt; port &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L72" class="LineNr"> 72 </span>  <span class="Delimiter">}</span>
<span id="L73" class="LineNr"> 73 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L74" class="LineNr"> 74 </span><span class="Delimiter">}</span>
<span id="L75" class="LineNr"> 75 </span>
<span id="L76" class="LineNr"> 76 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L77" class="LineNr"> 77 </span>_OPEN_SERVER_SOCKET<span class="Delimiter">,</span>
<span id="L78" class="LineNr"> 78 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L79" class="LineNr"> 79 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$open-server-socket&quot;</span><span class="Delimiter">,</span> _OPEN_SERVER_SOCKET<span class="Delimiter">);</span>
<span id="L80" class="LineNr"> 80 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L81" class="LineNr"> 81 </span><span class="Normal">case</span> _OPEN_SERVER_SOCKET: <span class="Delimiter">{</span>
<span id="L82" class="LineNr"> 82 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L83" class="LineNr"> 83 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-server-socket' requires exactly one ingredient (the port to listen for requests on), but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L84" class="LineNr"> 84 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L85" class="LineNr"> 85 </span>  <span class="Delimiter">}</span>
<span id="L86" class="LineNr"> 86 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L87" class="LineNr"> 87 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of '$open-server-socket' should be a number, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L88" class="LineNr"> 88 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L89" class="LineNr"> 89 </span>  <span class="Delimiter">}</span>
<span id="L90" class="LineNr"> 90 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L91" class="LineNr"> 91 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$open-server-socket' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L92" class="LineNr"> 92 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L93" class="LineNr"> 93 </span>  <span class="Delimiter">}</span>
<span id="L94" class="LineNr"> 94 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L95" class="LineNr"> 95 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first product of '$open-server-socket' should be a number (file handle), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L96" class="LineNr"> 96 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L97" class="LineNr"> 97 </span>  <span class="Delimiter">}</span>
<span id="L98" class="LineNr"> 98 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L99" class="LineNr"> 99 </span><span class="Delimiter">}</span>
<span id="L100" class="LineNr">100 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L101" class="LineNr">101 </span><span class="Normal">case</span> _OPEN_SERVER_SOCKET: <span class="Delimiter">{</span>
<span id="L102" class="LineNr">102 </span>  <span class="Normal">int</span> port = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L103" class="LineNr">103 </span>  socket_t* server = <a href='091socket.cc.html#L115'>server_socket</a><span class="Delimiter">(</span>port<span class="Delimiter">);</span>
<span id="L104" class="LineNr">104 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L105" class="LineNr">105 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>server<span class="Delimiter">-&gt;</span>fd &lt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L106" class="LineNr">106 </span>    <span class="Normal">delete</span> server<span class="Delimiter">;</span>
<span id="L107" class="LineNr">107 </span>    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L108" class="LineNr">108 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L109" class="LineNr">109 </span>  <span class="Delimiter">}</span>
<span id="L110" class="LineNr">110 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> result = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>server<span class="Delimiter">);</span>
<span id="L111" class="LineNr">111 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Normal">static_cast</span>&lt;<span class="Normal">double</span>&gt;<span class="Delimiter">(</span>result<span class="Delimiter">));</span>
<span id="L112" class="LineNr">112 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L113" class="LineNr">113 </span><span class="Delimiter">}</span>
<span id="L114" class="LineNr">114 </span><span class="Delimiter">:(code)</span>
<span id="L115" class="LineNr">115 </span>socket_t* <a href='091socket.cc.html#L115'>server_socket</a><span class="Delimiter">(</span><span class="Normal">int</span> port<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L116" class="LineNr">116 </span>  socket_t* result = <span class="Normal">new</span> socket_t<span class="Delimiter">;</span>
<span id="L117" class="LineNr">117 </span>  result<span class="Delimiter">-&gt;</span>fd = socket<span class="Delimiter">(</span>AF_INET<span class="Delimiter">,</span> SOCK_STREAM<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L118" class="LineNr">118 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">-&gt;</span>fd &lt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L119" class="LineNr">119 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <span class="Constant">&quot;Failed to create server socket.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L120" class="LineNr">120 </span>    <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L121" class="LineNr">121 </span>  <span class="Delimiter">}</span>
<span id="L122" class="LineNr">122 </span>  <span class="Normal">int</span> dummy = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L123" class="LineNr">123 </span>  setsockopt<span class="Delimiter">(</span>result<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">,</span> SOL_SOCKET<span class="Delimiter">,</span> SO_REUSEADDR<span class="Delimiter">,</span> &amp;dummy<span class="Delimiter">,</span> <span class="Normal">sizeof</span><span class="Delimiter">(</span>dummy<span class="Delimiter">));</span>
<span id="L124" class="LineNr">124 </span>  result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">.</span>sin_family = AF_INET<span class="Delimiter">;</span>
<span id="L125" class="LineNr">125 </span>  result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">.</span>sin_addr<span class="Delimiter">.</span>s_addr = Current_scenario ? htonl<span class="Delimiter">(</span>INADDR_LOOPBACK<span class="Delimiter">)</span> : INADDR_ANY<span class="Delimiter">;</span>  <span class="Comment">// run tests without running afoul of any firewall</span>
<span id="L126" class="LineNr">126 </span>  result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">.</span>sin_port = htons<span class="Delimiter">(</span>port<span class="Delimiter">);</span>
<span id="L127" class="LineNr">127 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>bind<span class="Delimiter">(</span>result<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">,</span> <span class="Normal">reinterpret_cast</span>&lt;sockaddr*&gt;<span class="Delimiter">(</span>&amp;result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">),</span> <span class="Normal">sizeof</span><span class="Delimiter">(</span>result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">))</span> &gt;= <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L128" class="LineNr">128 </span>    listen<span class="Delimiter">(</span>result<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">queue length</span><span class="Comment">*/</span><span class="Constant">5</span><span class="Delimiter">);</span>
<span id="L129" class="LineNr">129 </span>  <span class="Delimiter">}</span>
<span id="L130" class="LineNr">130 </span>  <span class="Normal">else</span> <span class="Delimiter">{</span>
<span id="L131" class="LineNr">131 </span>    close<span class="Delimiter">(</span>result<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">);</span>
<span id="L132" class="LineNr">132 </span>    result<span class="Delimiter">-&gt;</span>fd = -<span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L133" class="LineNr">133 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <span class="Constant">&quot;Failed to bind result socket to port &quot;</span> &lt;&lt; port &lt;&lt; <span class="Constant">&quot;. Something's already using that port.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
<span id="L134" class="LineNr">134 </span>  <span class="Delimiter">}</span>
<span id="L135" class="LineNr">135 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L136" class="LineNr">136 </span><span class="Delimiter">}</span>
<span id="L137" class="LineNr">137 </span>
<span id="L138" class="LineNr">138 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L139" class="LineNr">139 </span>_ACCEPT<span class="Delimiter">,</span>
<span id="L140" class="LineNr">140 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L141" class="LineNr">141 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$accept&quot;</span><span class="Delimiter">,</span> _ACCEPT<span class="Delimiter">);</span>
<span id="L142" class="LineNr">142 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L143" class="LineNr">143 </span><span class="Normal">case</span> _ACCEPT: <span class="Delimiter">{</span>
<span id="L144" class="LineNr">144 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L145" class="LineNr">145 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$accept' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L146" class="LineNr">146 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L147" class="LineNr">147 </span>  <span class="Delimiter">}</span>
<span id="L148" class="LineNr">148 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L149" class="LineNr">149 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of '$accept' should be a number, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L150" class="LineNr">150 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L151" class="LineNr">151 </span>  <span class="Delimiter">}</span>
<span id="L152" class="LineNr">152 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L153" class="LineNr">153 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$accept' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L154" class="LineNr">154 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L155" class="LineNr">155 </span>  <span class="Delimiter">}</span>
<span id="L156" class="LineNr">156 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L157" class="LineNr">157 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first product of '$accept' should be a number (file handle), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L158" class="LineNr">158 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L159" class="LineNr">159 </span>  <span class="Delimiter">}</span>
<span id="L160" class="LineNr">160 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L161" class="LineNr">161 </span><span class="Delimiter">}</span>
<span id="L162" class="LineNr">162 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L163" class="LineNr">163 </span><span class="Normal">case</span> _ACCEPT: <span class="Delimiter">{</span>
<span id="L164" class="LineNr">164 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">);</span>
<span id="L165" class="LineNr">165 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>  <span class="Comment">// indicate it modifies its ingredient</span>
<span id="L166" class="LineNr">166 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> x = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span id="L167" class="LineNr">167 </span>  socket_t* server = <span class="Normal">reinterpret_cast</span>&lt;socket_t*&gt;<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span id="L168" class="LineNr">168 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>server<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L169" class="LineNr">169 </span>    socket_t* session = <a href='091socket.cc.html#L179'>accept_session</a><span class="Delimiter">(</span>server<span class="Delimiter">);</span>
<span id="L170" class="LineNr">170 </span>    <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> result = <span class="Normal">reinterpret_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>session<span class="Delimiter">);</span>
<span id="L171" class="LineNr">171 </span>    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Normal">static_cast</span>&lt;<span class="Normal">double</span>&gt;<span class="Delimiter">(</span>result<span class="Delimiter">));</span>
<span id="L172" class="LineNr">172 </span>  <span class="Delimiter">}</span>
<span id="L173" class="LineNr">173 </span>  <span class="Normal">else</span> <span class="Delimiter">{</span>
<span id="L174" class="LineNr">174 </span>    products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L175" class="LineNr">175 </span>  <span class="Delimiter">}</span>
<span id="L176" class="LineNr">176 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L177" class="LineNr">177 </span><span class="Delimiter">}</span>
<span id="L178" class="LineNr">178 </span><span class="Delimiter">:(code)</span>
<span id="L179" class="LineNr">179 </span>socket_t* <a href='091socket.cc.html#L179'>accept_session</a><span class="Delimiter">(</span>socket_t* server<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L180" class="LineNr">180 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>server<span class="Delimiter">-&gt;</span>fd == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">NULL</span><span class="Delimiter">;</span>
<span id="L181" class="LineNr">181 </span>  socket_t* result = <span class="Normal">new</span> socket_t<span class="Delimiter">;</span>
<span id="L182" class="LineNr">182 </span>  socklen_t dummy = <span class="Normal">sizeof</span><span class="Delimiter">(</span>result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">);</span>
<span id="L183" class="LineNr">183 </span>  result<span class="Delimiter">-&gt;</span>fd = accept<span class="Delimiter">(</span>server<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">,</span> <span class="Normal">reinterpret_cast</span>&lt;sockaddr*&gt;<span class="Delimiter">(</span>&amp;result<span class="Delimiter">-&gt;</span>addr<span class="Delimiter">),</span> &amp;dummy<span class="Delimiter">);</span>
<span id="L184" class="LineNr">184 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L185" class="LineNr">185 </span><span class="Delimiter">}</span>
<span id="L186" class="LineNr">186 </span>
<span id="L187" class="LineNr">187 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L188" class="LineNr">188 </span>_READ_FROM_SOCKET<span class="Delimiter">,</span>
<span id="L189" class="LineNr">189 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L190" class="LineNr">190 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$read-from-socket&quot;</span><span class="Delimiter">,</span> _READ_FROM_SOCKET<span class="Delimiter">);</span>
<span id="L191" class="LineNr">191 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L192" class="LineNr">192 </span><span class="Normal">case</span> _READ_FROM_SOCKET: <span class="Delimiter">{</span>
<span id="L193" class="LineNr">193 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L194" class="LineNr">194 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-socket' requires exactly one ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L195" class="LineNr">195 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L196" class="LineNr">196 </span>  <span class="Delimiter">}</span>
<span id="L197" class="LineNr">197 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L198" class="LineNr">198 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of '$read-from-socket' should be a number (socket), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L199" class="LineNr">199 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L200" class="LineNr">200 </span>  <span class="Delimiter">}</span>
<span id="L201" class="LineNr">201 </span>  <span class="Normal">int</span> nprod = <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>
<span id="L202" class="LineNr">202 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>nprod == <span class="Constant">0</span> || nprod &gt; <span class="Constant">4</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L203" class="LineNr">203 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$read-from-socket' requires 1-4 products, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L204" class="LineNr">204 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L205" class="LineNr">205 </span>  <span class="Delimiter">}</span>
<span id="L206" class="LineNr">206 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_character<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L207" class="LineNr">207 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first product of '$read-from-socket' should be a character, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L208" class="LineNr">208 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L209" class="LineNr">209 </span>  <span class="Delimiter">}</span>
<span id="L210" class="LineNr">210 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>nprod &gt; <span class="Constant">1</span> &amp;&amp; !is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L211" class="LineNr">211 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;second product of '$read-from-socket' should be a boolean (data received?), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L212" class="LineNr">212 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L213" class="LineNr">213 </span>  <span class="Delimiter">}</span>
<span id="L214" class="LineNr">214 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>nprod &gt; <span class="Constant">2</span> &amp;&amp; !is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L215" class="LineNr">215 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;third product of '$read-from-socket' should be a boolean (eof?), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L216" class="LineNr">216 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L217" class="LineNr">217 </span>  <span class="Delimiter">}</span>
<span id="L218" class="LineNr">218 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>nprod &gt; <span class="Constant">3</span> &amp;&amp; !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L219" class="LineNr">219 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;fourth product of '$read-from-socket' should be a number (error code), but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L220" class="LineNr">220 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L221" class="LineNr">221 </span>  <span class="Delimiter">}</span>
<span id="L222" class="LineNr">222 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L223" class="LineNr">223 </span><span class="Delimiter">}</span>
<span id="L224" class="LineNr">224 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L225" class="LineNr">225 </span><span class="Normal">case</span> _READ_FROM_SOCKET: <span class="Delimiter">{</span>
<span id="L226" class="LineNr">226 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">4</span><span class="Delimiter">);</span>
<span id="L227" class="LineNr">227 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> x = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span id="L228" class="LineNr">228 </span>  socket_t* socket = <span class="Normal">reinterpret_cast</span>&lt;socket_t*&gt;<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span id="L229" class="LineNr">229 </span>  <span class="Comment">// 1. we'd like to simply read() from the socket</span>
<span id="L230" class="LineNr">230 </span>  <span class="Comment">// however read() on a socket never returns EOF, so we wouldn't know when to stop</span>
<span id="L231" class="LineNr">231 </span>  <span class="Comment">// 2. recv() can signal EOF, but it also signals &quot;no data yet&quot; in the beginning</span>
<span id="L232" class="LineNr">232 </span>  <span class="Comment">// so use poll() in the beginning to wait for data before calling recv()</span>
<span id="L233" class="LineNr">233 </span>  <span class="Comment">// 3. but poll() will block on EOF, so only use poll() on the very first</span>
<span id="L234" class="LineNr">234 </span>  <span class="Comment">// $read-from-socket on a socket</span>
<span id="L235" class="LineNr">235 </span>  <span class="Comment">//</span>
<span id="L236" class="LineNr">236 </span>  <span class="Comment">// Also, there was an unresolved issue where attempts to read() a small</span>
<span id="L237" class="LineNr">237 </span>  <span class="Comment">// number of bytes (less than 447 on Linux and Mac) would cause browsers to</span>
<span id="L238" class="LineNr">238 </span>  <span class="Comment">// prematurely close the connection. See commit 3403. That seems to be gone</span>
<span id="L239" class="LineNr">239 </span>  <span class="Comment">// after moving to recv()+poll(). It was never observed on OpenBSD.</span>
<span id="L240" class="LineNr">240 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!socket<span class="Delimiter">-&gt;</span>polled<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L241" class="LineNr">241 </span>    pollfd p<span class="Delimiter">;</span>
<span id="L242" class="LineNr">242 </span>    bzero<span class="Delimiter">(</span>&amp;p<span class="Delimiter">,</span> <span class="Normal">sizeof</span><span class="Delimiter">(</span>p<span class="Delimiter">));</span>
<span id="L243" class="LineNr">243 </span>    p<span class="Delimiter">.</span>fd = socket<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">;</span>
<span id="L244" class="LineNr">244 </span>    p<span class="Delimiter">.</span>events = POLLIN | POLLHUP<span class="Delimiter">;</span>
<span id="L245" class="LineNr">245 </span>    <span class="Normal">int</span> poll_result = poll<span class="Delimiter">(</span>&amp;p<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">num pollfds</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">timeout</span><span class="Comment">*/</span><span class="Constant">100</span><span class="Comment">/*</span><span class="Comment">ms</span><span class="Comment">*/</span><span class="Delimiter">);</span>
<span id="L246" class="LineNr">246 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>poll_result == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L247" class="LineNr">247 </span>      products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">no data</span><span class="Comment">*/</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L248" class="LineNr">248 </span>      products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">found</span><span class="Comment">*/</span><span class="Constant">false</span><span class="Delimiter">);</span>
<span id="L249" class="LineNr">249 </span>      products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">eof</span><span class="Comment">*/</span><span class="Constant">false</span><span class="Delimiter">);</span>
<span id="L250" class="LineNr">250 </span>      products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">error</span><span class="Comment">*/</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L251" class="LineNr">251 </span>      <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L252" class="LineNr">252 </span>    <span class="Delimiter">}</span>
<span id="L253" class="LineNr">253 </span>    <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>poll_result &lt; <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L254" class="LineNr">254 </span>      <span class="Normal">int</span> error_code = errno<span class="Delimiter">;</span>
<span id="L255" class="LineNr">255 </span>      <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;error in $read-from-socket</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L256" class="LineNr">256 </span>      products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">no data</span><span class="Comment">*/</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L257" class="LineNr">257 </span>      products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">found</span><span class="Comment">*/</span><span class="Constant">false</span><span class="Delimiter">);</span>
<span id="L258" class="LineNr">258 </span>      products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">eof</span><span class="Comment">*/</span><span class="Constant">false</span><span class="Delimiter">);</span>
<span id="L259" class="LineNr">259 </span>      products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>error_code<span class="Delimiter">);</span>
<span id="L260" class="LineNr">260 </span>      <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L261" class="LineNr">261 </span>    <span class="Delimiter">}</span>
<span id="L262" class="LineNr">262 </span>    socket<span class="Delimiter">-&gt;</span>polled = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L263" class="LineNr">263 </span>  <span class="Delimiter">}</span>
<span id="L264" class="LineNr">264 </span>  <span class="Normal">char</span> c = <span class="cSpecial">'\0'</span><span class="Delimiter">;</span>
<span id="L265" class="LineNr">265 </span>  <span class="Normal">int</span> error_code = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L266" class="LineNr">266 </span>  <span class="Normal">int</span> bytes_read = recv<span class="Delimiter">(</span>socket<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">,</span> &amp;c<span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">single byte</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">,</span> MSG_DONTWAIT<span class="Delimiter">);</span>
<span id="L267" class="LineNr">267 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>bytes_read &lt; <span class="Constant">0</span><span class="Delimiter">)</span> error_code = errno<span class="Delimiter">;</span>
<span id="L268" class="LineNr">268 </span><span class="CommentedCode">//?   if (error_code) {</span>
<span id="L269" class="LineNr">269 </span><span class="CommentedCode">//?     ostringstream out;</span>
<span id="L270" class="LineNr">270 </span><span class="CommentedCode">//?     out &lt;&lt; &quot;error in $read-from-socket &quot; &lt;&lt; socket-&gt;fd;</span>
<span id="L271" class="LineNr">271 </span><span class="CommentedCode">//?     perror(out.str().c_str());</span>
<span id="L272" class="LineNr">272 </span><span class="CommentedCode">//?   }</span>
<span id="L273" class="LineNr">273 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>c<span class="Delimiter">);</span>
<span id="L274" class="LineNr">274 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">found</span><span class="Comment">*/</span><span class="Constant">true</span><span class="Delimiter">);</span>
<span id="L275" class="LineNr">275 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">eof</span><span class="Comment">*/</span>bytes_read &lt;= <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L276" class="LineNr">276 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>error_code<span class="Delimiter">);</span>
<span id="L277" class="LineNr">277 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L278" class="LineNr">278 </span><span class="Delimiter">}</span>
<span id="L279" class="LineNr">279 </span>
<span id="L280" class="LineNr">280 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L281" class="LineNr">281 </span>_WRITE_TO_SOCKET<span class="Delimiter">,</span>
<span id="L282" class="LineNr">282 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L283" class="LineNr">283 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$write-to-socket&quot;</span><span class="Delimiter">,</span> _WRITE_TO_SOCKET<span class="Delimiter">);</span>
<span id="L284" class="LineNr">284 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L285" class="LineNr">285 </span><span class="Normal">case</span> _WRITE_TO_SOCKET: <span class="Delimiter">{</span>
<span id="L286" class="LineNr">286 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L287" class="LineNr">287 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$write-to-socket' requires exactly two ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L288" class="LineNr">288 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L289" class="LineNr">289 </span>  <span class="Delimiter">}</span>
<span id="L290" class="LineNr">290 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L291" class="LineNr">291 </span><span class="Delimiter">}</span>
<span id="L292" class="LineNr">292 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L293" class="LineNr">293 </span><span class="Normal">case</span> _WRITE_TO_SOCKET: <span class="Delimiter">{</span>
<span id="L294" class="LineNr">294 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> x = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span id="L295" class="LineNr">295 </span>  socket_t* socket = <span class="Normal">reinterpret_cast</span>&lt;socket_t*&gt;<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span id="L296" class="LineNr">296 </span>  <span class="Comment">// write just one character at a time to the socket</span>
<span id="L297" class="LineNr">297 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> y = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span id="L298" class="LineNr">298 </span>  <span class="Normal">char</span> c = <span class="Normal">static_cast</span>&lt;<span class="Normal">char</span>&gt;<span class="Delimiter">(</span>y<span class="Delimiter">);</span>
<span id="L299" class="LineNr">299 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>write<span class="Delimiter">(</span>socket<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">,</span> &amp;c<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L300" class="LineNr">300 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> &lt;&lt; <span class="Constant">&quot;failed to write to socket</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L301" class="LineNr">301 </span>    exit<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L302" class="LineNr">302 </span>  <span class="Delimiter">}</span>
<span id="L303" class="LineNr">303 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L304" class="LineNr">304 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span id="L305" class="LineNr">305 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L306" class="LineNr">306 </span><span class="Delimiter">}</span>
<span id="L307" class="LineNr">307 </span>
<span id="L308" class="LineNr">308 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L309" class="LineNr">309 </span>_CLOSE_SOCKET<span class="Delimiter">,</span>
<span id="L310" class="LineNr">310 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L311" class="LineNr">311 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;$close-socket&quot;</span><span class="Delimiter">,</span> _CLOSE_SOCKET<span class="Delimiter">);</span>
<span id="L312" class="LineNr">312 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L313" class="LineNr">313 </span><span class="Normal">case</span> _CLOSE_SOCKET: <span class="Delimiter">{</span>
<span id="L314" class="LineNr">314 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L315" class="LineNr">315 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-socket' requires exactly two ingredient, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L316" class="LineNr">316 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L317" class="LineNr">317 </span>  <span class="Delimiter">}</span>
<span id="L318" class="LineNr">318 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L319" class="LineNr">319 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;first ingredient of '$close-socket' should be a number, but got '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L320" class="LineNr">320 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L321" class="LineNr">321 </span>  <span class="Delimiter">}</span>
<span id="L322" class="LineNr">322 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L323" class="LineNr">323 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'$close-socket' requires exactly one product, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L324" class="LineNr">324 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L325" class="LineNr">325 </span>  <span class="Delimiter">}</span>
<span id="L326" class="LineNr">326 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name != inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L327" class="LineNr">327 </span>    <a href='003trace.cc.html#L174'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;product of '$close-socket' must be first ingredient '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;', but got '&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L328" class="LineNr">328 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L329" class="LineNr">329 </span>  <span class="Delimiter">}</span>
<span id="L330" class="LineNr">330 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L331" class="LineNr">331 </span><span class="Delimiter">}</span>
<span id="L332" class="LineNr">332 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L333" class="LineNr">333 </span><span class="Normal">case</span> _CLOSE_SOCKET: <span class="Delimiter">{</span>
<span id="L334" class="LineNr">334 </span>  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> x = <span class="Normal">static_cast</span>&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt;<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span id="L335" class="LineNr">335 </span>  socket_t* socket = <span class="Normal">reinterpret_cast</span>&lt;socket_t*&gt;<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span id="L336" class="LineNr">336 </span>  close<span class="Delimiter">(</span>socket<span class="Delimiter">-&gt;</span>fd<span class="Delimiter">);</span>
<span id="L337" class="LineNr">337 </span>  <span class="Normal">delete</span> socket<span class="Delimiter">;</span>
<span id="L338" class="LineNr">338 </span>  products<span class="Delimiter">.</span>resize<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L339" class="LineNr">339 </span>  products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>push_back<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>  <span class="Comment">// make sure we can't reuse the socket</span>
<span id="L340" class="LineNr">340 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L341" class="LineNr">341 </span><span class="Delimiter">}</span>
<span id="L342" class="LineNr">342 </span>
<span id="L343" class="LineNr">343 </span><span class="Delimiter">:(before &quot;End Includes&quot;)</span>
<span id="L344" class="LineNr">344 </span><span class="PreProc">#include </span><span class="Constant">&lt;netinet/in.h&gt;</span>
<span id="L345" class="LineNr">345 </span><span class="PreProc">#include </span><span class="Constant">&lt;netdb.h&gt;</span>
<span id="L346" class="LineNr">346 </span><span class="PreProc">#include </span><span class="Constant">&lt;poll.h&gt;</span>
<span id="L347" class="LineNr">347 </span><span class="PreProc">#include </span><span class="Constant">&lt;sys/socket.h&gt;</span>
<span id="L348" class="LineNr">348 </span><span class="PreProc">#include </span><span class="Constant">&lt;unistd.h&gt;</span>
</pre>
</body>
</html>
<!-- vim: set foldmethod=manual : -->