lib/libcurses/pause.c

   1 /*      $NetBSD: pause.c,v 1.8 2008/04/28 20:23:01 martin Exp $ */
   2
   3 /*-
   4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Julian Coleman.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #include <sys/cdefs.h>
  33 #ifndef lint
  34 __RCSID("$NetBSD: pause.c,v 1.8 2008/04/28 20:23:01 martin Exp $");
  35 #endif                          /* not lint */
  36
  37 #include <stdarg.h>
  38 #include <stdlib.h>
  39 #include <sys/time.h>
  40
  41 #include "curses.h"
  42 #include "curses_private.h"
  43
  44 /*
  45  * napms --
  46  *      Sleep for ms milliseconds.
  47  */
  48 int
  49 napms(int ms)
  50 {
  51         struct timespec ts;
  52
  53 #ifdef DEBUG
  54         __CTRACE(__CTRACE_MISC, "napms: %d\n", ms);
  55 #endif
  56         ts.tv_sec = ms / 1000;
  57         ts.tv_nsec = (ms % 1000) * 1000000;
  58         (void) nanosleep(&ts, NULL);
  59         return(OK);
  60 }
  61
  62 /*
  63  * delay_output --
  64  *      Pause output using terminal pad character.
  65  */
  66 int
  67 delay_output(int ms)
  68 {
  69         char *delstr;
  70
  71 #ifdef DEBUG
  72         __CTRACE(__CTRACE_MISC, "delay_output: %d\n", ms);
  73 #endif
  74         if (!_cursesi_screen->padchar)
  75                 return(napms(ms));
  76
  77         if (asprintf(&delstr, "%d", ms) == -1)
  78                 return (ERR);
  79         tputs (delstr, 0, __cputchar);
  80         free(delstr);
  81         return (OK);
  82 }