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 */
50 static 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
70 int
_delay(int delay,int (* outc)(char))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);
98 good:
99 return (OK);
100 }
101