The contents of this file describe the read & write functions of the
configuration module and explain how to use them.  Comments are welcome.

There are functions to read the value of a variable and to write the
value of a variable.  These functions take a single integer argument.
This integer value is mapped to the variable name using #define
statements in ca_dictSyms.h. The order of the variables is significant.
At this time, the initial values of the variables are assigned in 
ca_values.c; I shall do this in a better way soon.

The file ca_macros.h has a series of #define statements to define 
macros for the read and write functions.  There are four types of 
read function and four types of write function.

The four types of read function are:

(a) int ca_get_int(int symbol);

(b) char *ca_get_dirlist(int symbol);

(c) char *ca_get_string(int symbol);

(d) int ca_get_boolean(int symbol).


The four types of write function are:

(a) int ca_set_int(int symbol);

(b) void ca_set_dirlist(int symbol);

(c) void ca_set_string(int symbol);

(d) void ca_set_boolean(int symbol).


There is also a function to print the contents of a 
dictionary:

void ca_getDictionary(dict_t woordenboek[], int size)


Function to print the details of a "database" (e.g. machine name, port
number):

void ca_getDatabase(ca_database_t db)


Function to print the details of a "source" (i.e. the name of a source
and the details of the database):

void ca_getSource(ca_database_list_t src)

Function to print the details of all sources available on the server:

void ca_getAllSources(GSList *sources)

