src/exim_monitor/em_xs.c

   1 /*************************************************
   2 *               Exim Monitor                     *
   3 *************************************************/
   4
   5 /* Copyright (c) University of Cambridge, 1995 - 2007 */
   6 /* See the file NOTICE for conditions of use and distribution. */
   7
   8 /* This file contains a number of subroutines that are in effect
   9 just alternative packaging for calls to various X functions that
  10 happen to be convenient for this program. */
  11
  12 #include "em_hdr.h"
  13
  14
  15
  16 /*************************************************
  17 *                  xs_SetValues                  *
  18 *************************************************/
  19
  20 /* Unpick a variable-length argument list and set up an
  21 appropriate call to XtSetValues. To make it reasonably
  22 efficient, we keep a working Arg structure of length 15;
  23 the largest call in eximon sets 11 values. The code uses
  24 malloc/free if more, just in case there is ever a longer
  25 one that gets overlooked. */
  26
  27 static Arg xs_temparg[15];
  28
  29 void xs_SetValues(Widget w, Cardinal num_args, ...)
  30 {
  31 int i;
  32 va_list ap;
  33 Arg *aa = (num_args > 15)? (Arg *)malloc(num_args*sizeof(Arg)) : xs_temparg;
  34 va_start(ap, num_args);
  35 for (i = 0; i < num_args; i++)
  36   {
  37   aa[i].name = va_arg(ap, String);
  38   aa[i].value = va_arg(ap, XtArgVal);
  39   }
  40 XtSetValues(w, aa, num_args);
  41 if (num_args > 15) free(aa);
  42 }
  43
  44 /* End of em_xs.c */