NAME

       getdns_context_set_context_update_callback -- get informed on getdns context updates

LIBRARY

       DNS Resolver library (libgetdns, -lgetdns)

SYNOPSIS

       #include <getdns.h>

       getdns_return_t
       getdns_context_set_context_update_callback (getdns_context ** context,
          void (*cbfun)(getdns_context *context, getdns_context_code_t changed_item)

DESCRIPTION

       Changes  to  the  context  such  as  in  response  to  system files that affect the contet
       (/etc/resolv.conf etc.) trigger a call to the callback function specified as cbfun

       context a previously initialized context

       cbfun callback function to invoked when the specified context changes.  If  this  argument
          is NULL then updates to the context will not invoke a callback.

RETURN VALUES

       Upon  successful  completion each of these functions return GETDNS_RETURN_GOOD , otherwise
       the following error values are returned:

       GETDNS_RETURN_GENERIC_ERROR memory allocation failed or some other untoward thing happened

       GETDNS_RETURN_BAD_CONTEXT if the context pointer is invalid

EXAMPLES

       TBD

SEE ALSO

       libgetdns(3),               getdns_context_create(3),               getdns_context_set(3),
       getdns_context_set_context_update_callback(3),

getdns 1.6.0                              December 2getdns_context_set_context_update_callback(3)