1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27/*	Copyright (c) 1988 AT&T	*/
28/*	  All Rights Reserved	*/
29
30/*
31 * University Copyright- Copyright (c) 1982, 1986, 1988
32 * The Regents of the University of California
33 * All Rights Reserved
34 *
35 * University Acknowledgment- Portions of this document are derived from
36 * software developed by the University of California, Berkeley, and its
37 * contributors.
38 */
39
40/*LINTLIBRARY*/
41
42#include	<sys/types.h>
43#include	"curses_inc.h"
44
45/*
46 * The following array gives the number of tens of milliseconds per
47 * character for each speed as returned by gtty.  Thus since 300
48 * baud returns a 7, there are 33.3 milliseconds per char at 300 baud.
49 */
50static	short	tmspc10[] =
51		{
52		    /* 0   50    75   110 134.5 150  200  300   baud */
53			0, 2000, 1333, 909, 743, 666, 500, 333,
54		    /* 600 1200 1800 2400 4800 9600 19200 38400 baud */
55			166, 83,  55,  41,  20,  10,   5,    2,
56		    /* 57600, 76800, 115200, 153600, 230400, 307200 baud */
57			2,	1,	1,	1,	1,	1,
58		    /* 460800, 921600 baud */
59			1,	1
60		};
61
62/*
63 * Insert a delay into the output stream for "delay/10" milliseconds.
64 * Round up by a half a character frame, and then do the delay.
65 * Too bad there are no user program accessible programmed delays.
66 * Transmitting pad characters slows many terminals down and also
67 * loads the system.
68 */
69
70int
71_delay(int delay, int (*outc)(char))
72{
73	int	mspc10;
74	char	pc;
75	int	outspeed;
76
77	/* if there is no pad character, then just return */
78	if (no_pad_char)
79		goto good;
80
81#ifdef SYSV
82	outspeed = _BRS(PROGTTYS);
83#else	/* SYSV */
84	outspeed = _BR(PROGTTY);
85#endif	/* SYSV */
86	if (outspeed <= 0 || outspeed >=
87	    (sizeof (tmspc10) / sizeof (tmspc10[0])))
88		return (ERR);
89
90	mspc10 = tmspc10[outspeed];
91	delay += mspc10 / 2;
92	if (pad_char)
93		pc = *pad_char;
94	else
95		pc = 0;
96	for (delay /= mspc10; delay-- > 0; )
97		(*outc)(pc);
98good:
99	return (OK);
100}
101