src/exim_monitor/em_xs.c

   1 /* $Cambridge: exim/src/exim_monitor/em_xs.c,v 1.3 2006/02/07 11:18:59 ph10 Exp $ */
   2
   3 /*************************************************
   4 *               Exim Monitor                     *
   5 *************************************************/
   6
   7 /* Copyright (c) University of Cambridge, 1995 - 2006 */
   8 /* See the file NOTICE for conditions of use and distribution. */
   9
  10 /* This file contains a number of subroutines that are in effect
  11 just alternative packaging for calls to various X functions that
  12 happen to be convenient for this program. */
  13
  14 #include "em_hdr.h"
  15
  16
  17
  18 /*************************************************
  19 *                  xs_SetValues                  *
  20 *************************************************/
  21
  22 /* Unpick a variable-length argument list and set up an
  23 appropriate call to XtSetValues. To make it reasonably
  24 efficient, we keep a working Arg structure of length 15;
  25 the largest call in eximon sets 11 values. The code uses
  26 malloc/free if more, just in case there is ever a longer
  27 one that gets overlooked. */
  28
  29 static Arg xs_temparg[15];
  30
  31 void xs_SetValues(Widget w, Cardinal num_args, ...)
  32 {
  33 int i;
  34 va_list ap;
  35 Arg *aa = (num_args > 15)? (Arg *)malloc(num_args*sizeof(Arg)) : xs_temparg;
  36 va_start(ap, num_args);
  37 for (i = 0; i < num_args; i++)
  38   {
  39   aa[i].name = va_arg(ap, String);
  40   aa[i].value = va_arg(ap, XtArgVal);
  41   }
  42 XtSetValues(w, aa, num_args);
  43 if (num_args > 15) free(aa);
  44 }
  45
  46 /* End of em_xs.c */