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<a href='https://github.com/akkartik/mu/blob/master/091socket.cc'>https://github.com/akkartik/mu/blob/master/091socket.cc</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Delimiter">:(before "End Types")</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>&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 "End Primitive Recipe Declarations")</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 "End Primitive Recipe Numbers")</span>
<span id="L16" class="LineNr"> 16 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"$open-client-socket"</span><span class="Delimiter">,</span> _OPEN_CLIENT_SOCKET<span class="Delimiter">);</span>
<span id="L17" class="LineNr"> 17 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L18" class="LineNr"> 18 </span><span class="Normal">case</span> _OPEN_CLIENT_SOCKET: <span class="Delimiter">{</span>
<span id="L19" class="LineNr"> 19 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L20" class="LineNr"> 20 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'$open-client-socket' requires exactly two ingredients, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first ingredient of '$open-client-socket' should be text (the hostname), but got '"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L25" class="LineNr"> 25 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L26" class="LineNr"> 26 </span> <span class="Delimiter">}</span>
<span id="L27" class="LineNr"> 27 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L28" class="LineNr"> 28 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"second ingredient of '$open-client-socket' should be a number (the port of the hostname to connect to), but got '"</span> << 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> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'$open-client-socket' requires exactly one product, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L33" class="LineNr"> 33 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L34" class="LineNr"> 34 </span> <span class="Delimiter">}</span>
<span id="L35" class="LineNr"> 35 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L36" class="LineNr"> 36 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first product of '$open-client-socket' should be a number (socket handle), but got '"</span> << 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> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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 "End Primitive Recipe Implementations")</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#L142'>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="Comment">/*</span><span class="Comment">skip alloc id</span><span class="Comment">*/</span><span class="Constant">1</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">-></span>fd < <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><<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>><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><<span class="Normal">double</span>><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& 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">-></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">-></span>fd < <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#L196'>raise</a> << <span class="Constant">"Failed to create socket.\n"</span> << <a href='003trace.cc.html#L225'>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">-></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">-></span>h_addr<span class="Delimiter">,</span> <span class="Normal">reinterpret_cast</span><<span class="Normal">char</span>*><span class="Delimiter">(</span>&result<span class="Delimiter">-></span>addr<span class="Delimiter">.</span>sin_addr<span class="Delimiter">.</span>s_addr<span class="Delimiter">),</span> tmp<span class="Delimiter">-></span>h_length<span class="Delimiter">);</span>
<span id="L67" class="LineNr"> 67 </span> result<span class="Delimiter">-></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">-></span>fd<span class="Delimiter">,</span> <span class="Normal">reinterpret_cast</span><sockaddr*><span class="Delimiter">(</span>&result<span class="Delimiter">-></span>addr<span class="Delimiter">),</span> <span class="Normal">sizeof</span><span class="Delimiter">(</span>result<span class="Delimiter">-></span>addr<span class="Delimiter">))</span> < <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">-></span>fd<span class="Delimiter">);</span>
<span id="L70" class="LineNr"> 70 </span> result<span class="Delimiter">-></span>fd = -<span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L71" class="LineNr"> 71 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"Failed to connect to "</span> << host << <span class="Constant">':'</span> << port << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L225'>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 "End Primitive Recipe Declarations")</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 "End Primitive Recipe Numbers")</span>
<span id="L79" class="LineNr"> 79 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"$open-server-socket"</span><span class="Delimiter">,</span> _OPEN_SERVER_SOCKET<span class="Delimiter">);</span>
<span id="L80" class="LineNr"> 80 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L81" class="LineNr"> 81 </span><span class="Normal">case</span> _OPEN_SERVER_SOCKET: <span class="Delimiter">{</span>
<span id="L82" class="LineNr"> 82 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L83" class="LineNr"> 83 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'$open-server-socket' requires exactly one ingredient (the port to listen for requests on), but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first ingredient of '$open-server-socket' should be a number, but got '"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L88" class="LineNr"> 88 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L89" class="LineNr"> 89 </span> <span class="Delimiter">}</span>
<span id="L90" class="LineNr"> 90 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L91" class="LineNr"> 91 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'$open-server-socket' requires exactly one product, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first product of '$open-server-socket' should be a number (file handle), but got '"</span> << 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> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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 "End Primitive Recipe Implementations")</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">-></span>fd < <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><<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>><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><<span class="Normal">double</span>><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">-></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">-></span>fd < <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#L196'>raise</a> << <span class="Constant">"Failed to create server socket.\n"</span> << <a href='003trace.cc.html#L225'>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">-></span>fd<span class="Delimiter">,</span> SOL_SOCKET<span class="Delimiter">,</span> SO_REUSEADDR<span class="Delimiter">,</span> &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">-></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">-></span>addr<span class="Delimiter">.</span>sin_addr<span class="Delimiter">.</span>s_addr = <span class="Special">Current_scenario</span> ? 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">-></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">-></span>fd<span class="Delimiter">,</span> <span class="Normal">reinterpret_cast</span><sockaddr*><span class="Delimiter">(</span>&result<span class="Delimiter">-></span>addr<span class="Delimiter">),</span> <span class="Normal">sizeof</span><span class="Delimiter">(</span>result<span class="Delimiter">-></span>addr<span class="Delimiter">))</span> >= <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">-></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">-></span>fd<span class="Delimiter">);</span>
<span id="L132" class="LineNr">132 </span> result<span class="Delimiter">-></span>fd = -<span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L133" class="LineNr">133 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"Failed to bind result socket to port "</span> << port << <span class="Constant">". Something's already using that port.\n"</span> << 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 "End Primitive Recipe Declarations")</span>
<span id="L139" class="LineNr">139 </span>_ACCEPT<span class="Delimiter">,</span>
<span id="L140" class="LineNr">140 </span><span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
<span id="L141" class="LineNr">141 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"$accept"</span><span class="Delimiter">,</span> _ACCEPT<span class="Delimiter">);</span>
<span id="L142" class="LineNr">142 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'$accept' requires exactly one ingredient, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L146" class="LineNr">146 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L147" class="LineNr">147 </span> <span class="Delimiter">}</span>
<span id="L148" class="LineNr">148 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L149" class="LineNr">149 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first ingredient of '$accept' should be a number, but got '"</span> << 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> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'$accept' requires exactly one product, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L154" class="LineNr">154 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L155" class="LineNr">155 </span> <span class="Delimiter">}</span>
<span id="L156" class="LineNr">156 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L157" class="LineNr">157 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first product of '$accept' should be a number (file handle), but got '"</span> << 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> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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 "End Primitive Recipe Implementations")</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><<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>><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><socket_t*><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><<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>><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><<span class="Normal">double</span>><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">-></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">-></span>addr<span class="Delimiter">);</span>
<span id="L183" class="LineNr">183 </span> result<span class="Delimiter">-></span>fd = accept<span class="Delimiter">(</span>server<span class="Delimiter">-></span>fd<span class="Delimiter">,</span> <span class="Normal">reinterpret_cast</span><sockaddr*><span class="Delimiter">(</span>&result<span class="Delimiter">-></span>addr<span class="Delimiter">),</span> &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 "End Primitive Recipe Declarations")</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 "End Primitive Recipe Numbers")</span>
<span id="L190" class="LineNr">190 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"$read-from-socket"</span><span class="Delimiter">,</span> _READ_FROM_SOCKET<span class="Delimiter">);</span>
<span id="L191" class="LineNr">191 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L192" class="LineNr">192 </span><span class="Normal">case</span> _READ_FROM_SOCKET: <span class="Delimiter">{</span>
<span id="L193" class="LineNr">193 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L194" class="LineNr">194 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'$read-from-socket' requires exactly one ingredient, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first ingredient of '$read-from-socket' should be a number (socket), but got '"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L199" class="LineNr">199 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L200" class="LineNr">200 </span> <span class="Delimiter">}</span>
<span id="L201" class="LineNr">201 </span> <span class="Normal">int</span> nprod = <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>
<span id="L202" class="LineNr">202 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>nprod == <span class="Constant">0</span> || nprod > <span class="Constant">4</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L203" class="LineNr">203 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'$read-from-socket' requires 1-4 products, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first product of '$read-from-socket' should be a character, but got '"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L208" class="LineNr">208 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L209" class="LineNr">209 </span> <span class="Delimiter">}</span>
<span id="L210" class="LineNr">210 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>nprod > <span class="Constant">1</span> && !is_mu_boolean<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L211" class="LineNr">211 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"second product of '$read-from-socket' should be a boolean (data received?), but got '"</span> << 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> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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 > <span class="Constant">2</span> && !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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"third product of '$read-from-socket' should be a boolean (eof?), but got '"</span> << to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">2</span><span class="Delimiter">))</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L216" class="LineNr">216 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L217" class="LineNr">217 </span> <span class="Delimiter">}</span>
<span id="L218" class="LineNr">218 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>nprod > <span class="Constant">3</span> && !is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">3</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L219" class="LineNr">219 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"fourth product of '$read-from-socket' should be a number (error code), but got '"</span> << 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> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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 "End Primitive Recipe Implementations")</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><<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>><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><socket_t*><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 "no data yet" 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">-></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>&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">-></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>&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 < <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#L196'>raise</a> << <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> << <span class="Constant">"error in $read-from-socket\n"</span> << <a href='003trace.cc.html#L225'>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">-></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">-></span>fd<span class="Delimiter">,</span> &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 < <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 << "error in $read-from-socket " << socket->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 <= <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 "End Primitive Recipe Declarations")</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 "End Primitive Recipe Numbers")</span>
<span id="L283" class="LineNr">283 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"$write-to-socket"</span><span class="Delimiter">,</span> _WRITE_TO_SOCKET<span class="Delimiter">);</span>
<span id="L284" class="LineNr">284 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'$write-to-socket' requires exactly two ingredient, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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 "End Primitive Recipe Implementations")</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><<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>><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><socket_t*><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><<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>><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><<span class="Normal">char</span>><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">-></span>fd<span class="Delimiter">,</span> &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#L196'>raise</a> << <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> << <span class="Constant">"failed to write to socket\n"</span> << <a href='003trace.cc.html#L225'>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 "End Primitive Recipe Declarations")</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 "End Primitive Recipe Numbers")</span>
<span id="L311" class="LineNr">311 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <span class="Constant">"$close-socket"</span><span class="Delimiter">,</span> _CLOSE_SOCKET<span class="Delimiter">);</span>
<span id="L312" class="LineNr">312 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'$close-socket' requires exactly two ingredient, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L316" class="LineNr">316 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L317" class="LineNr">317 </span> <span class="Delimiter">}</span>
<span id="L318" class="LineNr">318 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_number<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L319" class="LineNr">319 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"first ingredient of '$close-socket' should be a number, but got '"</span> << 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> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"'$close-socket' requires exactly one product, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L324" class="LineNr">324 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L325" class="LineNr">325 </span> <span class="Delimiter">}</span>
<span id="L326" class="LineNr">326 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name != inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L327" class="LineNr">327 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> << <span class="Constant">"product of '$close-socket' must be first ingredient '"</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>original_string << <span class="Constant">"', but got '"</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>original_string << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>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 "End Primitive Recipe Implementations")</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><<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>><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><socket_t*><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">-></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 "End Includes")</span>
<span id="L344" class="LineNr">344 </span><span class="Comment">#include <netinet/in.h></span>
<span id="L345" class="LineNr">345 </span><span class="Comment">#include <netdb.h></span>
<span id="L346" class="LineNr">346 </span><span class="Comment">#include <poll.h></span>
<span id="L347" class="LineNr">347 </span><span class="Comment">#include <sys/socket.h></span>
<span id="L348" class="LineNr">348 </span><span class="Comment">#include <unistd.h></span>
</pre>
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