&gt; void
   shutdown-sender port -&gt; void  ; shutdown the sending part of the connection

 These functions are necessarily platform- and system-specific
</pre>
<h4><a name='docmacro65227' href='#tocmacro65227'>define-def</a></h4>
(define-macro (define-def ident assoc-list defaultvalue)<i><br> ... <a href='#codemacro65227'>Full Code</a> ... )</i>
<pre> syntax: define-def ident assoc-list defaultvalue
 Bind a variable ident to a value found in an assoc list.
 assoc-list is a list of pairs (symbol . value)
