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Graham Nelson 3cfbb1160e Finally removed vestigial core-test
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<ul class="crumbs"><li><a href="../webs.html">&#9733;</a></li><li><a href="index.html">inter</a></li><li><a href="index.html#2">Chapter 2: Interoperability</a></li><li><b>Connectors</b></li></ul><p class="purpose">To manage link symbols.</p>
<p class="inwebparagraph"><a id="SP1"></a><b>&#167;1. </b></p>
<pre class="display">
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">unique_plug_number</span><span class="plain"> = 1;</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="functiontext">Inter::Connectors::plug</span><span class="plain">(</span><span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">wanted</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Str::eq</span><span class="plain">(</span><span class="identifier">wanted</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"self"</span><span class="plain">)) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"selfie!"</span><span class="plain">);</span>
<span class="reserved">inter_package</span><span class="plain"> *</span><span class="identifier">connectors</span><span class="plain"> = </span><span class="functiontext">Inter::Connectors::connectors_package</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">);</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">PN</span><span class="plain">)</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">PN</span><span class="plain">, </span><span class="string">"plug_%05d"</span><span class="plain">, </span><span class="identifier">unique_plug_number</span><span class="plain">++);</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">plug</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::create_with_unique_name</span><span class="plain">(</span>
<span class="functiontext">Inter::Packages::scope</span><span class="plain">(</span><span class="identifier">connectors</span><span class="plain">), </span><span class="identifier">PN</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">PN</span><span class="plain">);</span>
<span class="functiontext">Inter::SymbolsTables::make_plug</span><span class="plain">(</span><span class="identifier">plug</span><span class="plain">, </span><span class="identifier">wanted</span><span class="plain">);</span>
<span class="identifier">LOGIF</span><span class="plain">(</span><span class="identifier">INTER_CONNECTORS</span><span class="plain">, </span><span class="string">"Plug I%d: $3 seeking %S\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">I</span><span class="plain">-&gt;</span><span class="identifier">allocation_id</span><span class="plain">, </span><span class="identifier">plug</span><span class="plain">, </span><span class="identifier">plug</span><span class="plain">-</span><span class="element">&gt;equated_name</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">plug</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="functiontext">Inter::Connectors::socket</span><span class="plain">(</span><span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">socket_name</span><span class="plain">, </span><span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">wired_from</span><span class="plain">) {</span>
<span class="reserved">inter_package</span><span class="plain"> *</span><span class="identifier">connectors</span><span class="plain"> = </span><span class="functiontext">Inter::Connectors::connectors_package</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">);</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">socket</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::create_with_unique_name</span><span class="plain">(</span>
<span class="functiontext">Inter::Packages::scope</span><span class="plain">(</span><span class="identifier">connectors</span><span class="plain">), </span><span class="identifier">socket_name</span><span class="plain">);</span>
<span class="functiontext">Inter::SymbolsTables::make_socket</span><span class="plain">(</span><span class="identifier">socket</span><span class="plain">, </span><span class="identifier">wired_from</span><span class="plain">);</span>
<span class="identifier">LOGIF</span><span class="plain">(</span><span class="identifier">INTER_CONNECTORS</span><span class="plain">, </span><span class="string">"Socket I%d: $3 wired to $3\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">I</span><span class="plain">-&gt;</span><span class="identifier">allocation_id</span><span class="plain">, </span><span class="identifier">socket</span><span class="plain">, </span><span class="identifier">wired_from</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">socket</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">inter_package</span><span class="plain"> *</span><span class="functiontext">Inter::Connectors::connectors_package</span><span class="plain">(</span><span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">I</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"no tree for connectors"</span><span class="plain">);</span>
<span class="reserved">inter_package</span><span class="plain"> *</span><span class="identifier">connectors</span><span class="plain"> = </span><span class="identifier">Site::connectors_package</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">connectors</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) {</span>
<span class="reserved">inter_package</span><span class="plain"> *</span><span class="identifier">main_package</span><span class="plain"> = </span><span class="identifier">Site::main_package</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">main_package</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"tree without main"</span><span class="plain">);</span>
<span class="identifier">connectors</span><span class="plain"> = </span><span class="functiontext">Inter::Packages::by_name</span><span class="plain">(</span><span class="identifier">main_package</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"connectors"</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">connectors</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) {</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">linkage</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::url_name_to_symbol</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"/_linkage"</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">linkage</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"no linkage ptype"</span><span class="plain">);</span>
<span class="reserved">inter_bookmark</span><span class="plain"> </span><span class="identifier">IBM</span><span class="plain"> = </span><span class="functiontext">Inter::Bookmarks::at_end_of_this_package</span><span class="plain">(</span><span class="identifier">main_package</span><span class="plain">);</span>
<span class="functiontext">Inter::Package::new_package</span><span class="plain">(&amp;</span><span class="identifier">IBM</span><span class="plain">, </span><span class="identifier">I</span><span class="string">"connectors"</span><span class="plain">, </span><span class="identifier">linkage</span><span class="plain">,</span>
<span class="plain">(</span><span class="constant">inter_t</span><span class="plain">) </span><span class="functiontext">Inter::Bookmarks::baseline</span><span class="plain">(&amp;</span><span class="identifier">IBM</span><span class="plain">)+1, </span><span class="identifier">NULL</span><span class="plain">, &amp;(</span><span class="identifier">connectors</span><span class="plain">));</span>
<span class="plain">}</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">connectors</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"unable to create connector package"</span><span class="plain">);</span>
<span class="identifier">Site::set_connectors_package</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">, </span><span class="identifier">connectors</span><span class="plain">);</span>
<span class="functiontext">Inter::Packages::make_linklike</span><span class="plain">(</span><span class="identifier">connectors</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">connectors</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="functiontext">Inter::Connectors::find_socket</span><span class="plain">(</span><span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">identifier</span><span class="plain">) {</span>
<span class="reserved">inter_package</span><span class="plain"> *</span><span class="identifier">connectors</span><span class="plain"> = </span><span class="identifier">Site::connectors_package</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">connectors</span><span class="plain">) {</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">S</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::symbol_from_name_not_equating</span><span class="plain">(</span>
<span class="functiontext">Inter::Packages::scope</span><span class="plain">(</span><span class="identifier">Site::connectors_package</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">)), </span><span class="identifier">identifier</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">S</span><span class="plain">) &amp;&amp; (</span><span class="functiontext">Inter::Symbols::get_scope</span><span class="plain">(</span><span class="identifier">S</span><span class="plain">) == </span><span class="constant">SOCKET_ISYMS</span><span class="plain">)) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">S</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="functiontext">Inter::Connectors::find_plug</span><span class="plain">(</span><span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">identifier</span><span class="plain">) {</span>
<span class="reserved">inter_package</span><span class="plain"> *</span><span class="identifier">connectors</span><span class="plain"> = </span><span class="identifier">Site::connectors_package</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">connectors</span><span class="plain">) {</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">S</span><span class="plain"> = </span><span class="functiontext">Inter::SymbolsTables::symbol_from_name_not_equating</span><span class="plain">(</span>
<span class="functiontext">Inter::Packages::scope</span><span class="plain">(</span><span class="identifier">Site::connectors_package</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">)), </span><span class="identifier">identifier</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">S</span><span class="plain">) &amp;&amp; (</span><span class="functiontext">Inter::Symbols::get_scope</span><span class="plain">(</span><span class="identifier">S</span><span class="plain">) == </span><span class="constant">PLUG_ISYMS</span><span class="plain">)) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">S</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Connectors::wire_plug</span><span class="plain">(</span><span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">plug</span><span class="plain">, </span><span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">to</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">plug</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"no plug"</span><span class="plain">);</span>
<span class="identifier">LOGIF</span><span class="plain">(</span><span class="identifier">INTER_CONNECTORS</span><span class="plain">, </span><span class="string">"Plug $3 wired to $3\</span><span class="plain">n</span><span class="string">"</span><span class="plain">, </span><span class="identifier">plug</span><span class="plain">, </span><span class="identifier">to</span><span class="plain">);</span>
<span class="functiontext">Inter::SymbolsTables::equate</span><span class="plain">(</span><span class="identifier">plug</span><span class="plain">, </span><span class="identifier">to</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Connectors::stecker</span><span class="plain">(</span><span class="reserved">inter_tree</span><span class="plain"> *</span><span class="identifier">I</span><span class="plain">) {</span>
<span class="reserved">inter_package</span><span class="plain"> *</span><span class="identifier">Q</span><span class="plain"> = </span><span class="identifier">Site::connectors_package</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Q</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="reserved">return</span><span class="plain">;</span>
<span class="reserved">inter_symbols_table</span><span class="plain"> *</span><span class="identifier">ST</span><span class="plain"> = </span><span class="functiontext">Inter::Packages::scope</span><span class="plain">(</span><span class="identifier">Q</span><span class="plain">);</span>
<span class="reserved">for</span><span class="plain"> (</span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">i</span><span class="plain">=0; </span><span class="identifier">i</span><span class="plain">&lt;</span><span class="identifier">ST</span><span class="plain">-</span><span class="element">&gt;size</span><span class="plain">; </span><span class="identifier">i</span><span class="plain">++) {</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">plug</span><span class="plain"> = </span><span class="identifier">ST</span><span class="plain">-</span><span class="element">&gt;symbol_array</span><span class="plain">[</span><span class="identifier">i</span><span class="plain">];</span>
<span class="reserved">if</span><span class="plain"> ((</span><span class="identifier">plug</span><span class="plain">) &amp;&amp; (</span><span class="functiontext">Inter::Symbols::get_scope</span><span class="plain">(</span><span class="identifier">plug</span><span class="plain">) == </span><span class="constant">PLUG_ISYMS</span><span class="plain">) &amp;&amp; (</span><span class="identifier">plug</span><span class="plain">-</span><span class="element">&gt;equated_to</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">)) {</span>
<span class="reserved">inter_symbol</span><span class="plain"> *</span><span class="identifier">socket</span><span class="plain"> = </span><span class="functiontext">Inter::Connectors::find_socket</span><span class="plain">(</span><span class="identifier">I</span><span class="plain">, </span><span class="identifier">plug</span><span class="plain">-</span><span class="element">&gt;equated_name</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">socket</span><span class="plain">) {</span>
<span class="functiontext">Inter::Connectors::wire_plug</span><span class="plain">(</span><span class="identifier">plug</span><span class="plain">, </span><span class="identifier">socket</span><span class="plain">);</span>
<span class="identifier">plug</span><span class="plain">-</span><span class="element">&gt;equated_name</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The function Inter::Connectors::plug is used in 2/trn (<a href="2-trn.html#SP3">&#167;3</a>, <a href="2-trn.html#SP3_3">&#167;3.3</a>, <a href="2-trn.html#SP4_1">&#167;4.1</a>).</p>
<p class="endnote">The function Inter::Connectors::socket is used in 2/trn (<a href="2-trn.html#SP1">&#167;1</a>).</p>
<p class="endnote">The function Inter::Connectors::connectors_package appears nowhere else.</p>
<p class="endnote">The function Inter::Connectors::find_socket is used in 2/trn (<a href="2-trn.html#SP1">&#167;1</a>).</p>
<p class="endnote">The function Inter::Connectors::find_plug is used in 2/trn (<a href="2-trn.html#SP3">&#167;3</a>).</p>
<p class="endnote">The function Inter::Connectors::wire_plug appears nowhere else.</p>
<p class="endnote">The function Inter::Connectors::stecker appears nowhere else.</p>
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