Sites

  
Figure: Site list

  The site data structure was designed to handle the input functions of the unit. The sites are constructed as a linear linked list. Several sites   are grouped in an array (site array), each containing several hundred sites. The site arrays are also connected by a linked list. Thereby, empty, no longer needed, arrays can be freed.

The internal representation of a site has three components:

• *links is a pointer to the input connections (links) of the site.

   

• *site_table is a pointer to the so called site table. The site table contains information about the input function and the name of the site.

• *next points to the next site of the unit. The list is terminated by NIL.