xref: /netbsd/lib/libcurses/pause.c (revision 6550d01e)
1 /*	$NetBSD: pause.c,v 1.9 2009/07/22 16:57:15 roy 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 1.9 2009/07/22 16:57:15 roy 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 }
83