1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 1997 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */
28*0Sstevel@tonic-gate /* All Rights Reserved */
29*0Sstevel@tonic-gate
30*0Sstevel@tonic-gate /*
31*0Sstevel@tonic-gate * University Copyright- Copyright (c) 1982, 1986, 1988
32*0Sstevel@tonic-gate * The Regents of the University of California
33*0Sstevel@tonic-gate * All Rights Reserved
34*0Sstevel@tonic-gate *
35*0Sstevel@tonic-gate * University Acknowledgment- Portions of this document are derived from
36*0Sstevel@tonic-gate * software developed by the University of California, Berkeley, and its
37*0Sstevel@tonic-gate * contributors.
38*0Sstevel@tonic-gate */
39*0Sstevel@tonic-gate
40*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate /*LINTLIBRARY*/
43*0Sstevel@tonic-gate
44*0Sstevel@tonic-gate #include <unistd.h>
45*0Sstevel@tonic-gate #include <sys/types.h>
46*0Sstevel@tonic-gate #include "curses_inc.h"
47*0Sstevel@tonic-gate
48*0Sstevel@tonic-gate /*
49*0Sstevel@tonic-gate * Code for various kinds of delays. Most of this is nonportable and
50*0Sstevel@tonic-gate * requires various enhancements to the operating system, so it won't
51*0Sstevel@tonic-gate * work on all systems. It is included in curses to provide a portable
52*0Sstevel@tonic-gate * interface, and so curses itself can use it for function keys.
53*0Sstevel@tonic-gate */
54*0Sstevel@tonic-gate
55*0Sstevel@tonic-gate #define NAPINTERVAL 100
56*0Sstevel@tonic-gate /*
57*0Sstevel@tonic-gate * Wait until the output has drained enough that it will only take
58*0Sstevel@tonic-gate * ms more milliseconds to drain completely.
59*0Sstevel@tonic-gate * Needs Berkeley TIOCOUTQ ioctl. Returns ERR if impossible.
60*0Sstevel@tonic-gate */
61*0Sstevel@tonic-gate
62*0Sstevel@tonic-gate int
draino(int ms)63*0Sstevel@tonic-gate draino(int ms)
64*0Sstevel@tonic-gate {
65*0Sstevel@tonic-gate #ifdef TIOCOUTQ
66*0Sstevel@tonic-gate #define _DRAINO
67*0Sstevel@tonic-gate /* number of chars = that many ms */
68*0Sstevel@tonic-gate long ncneeded;
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate /* 10 bits/char, 1000 ms/sec, baudrate in bits/sec */
71*0Sstevel@tonic-gate ncneeded = SP->baud * ms / (10 * 1000);
72*0Sstevel@tonic-gate /*CONSTCOND*/
73*0Sstevel@tonic-gate while (TRUE) {
74*0Sstevel@tonic-gate int rv; /* ioctl return value */
75*0Sstevel@tonic-gate int ncthere = 0; /* number of chars actually in */
76*0Sstevel@tonic-gate /* output queue */
77*0Sstevel@tonic-gate
78*0Sstevel@tonic-gate rv = ioctl(cur_term->Filedes, TIOCOUTQ, &ncthere);
79*0Sstevel@tonic-gate #ifdef DEBUG
80*0Sstevel@tonic-gate if (outf)
81*0Sstevel@tonic-gate fprintf(outf, "draino: rv %d, ncneeded %d, "
82*0Sstevel@tonic-gate "ncthere %d\n", rv, ncneeded, ncthere);
83*0Sstevel@tonic-gate #endif /* DEBUG */
84*0Sstevel@tonic-gate if (rv < 0)
85*0Sstevel@tonic-gate return (ERR); /* ioctl didn't work */
86*0Sstevel@tonic-gate if (ncthere <= ncneeded)
87*0Sstevel@tonic-gate return (OK);
88*0Sstevel@tonic-gate (void) napms(NAPINTERVAL);
89*0Sstevel@tonic-gate }
90*0Sstevel@tonic-gate #else /* TIOCOUTQ */
91*0Sstevel@tonic-gate
92*0Sstevel@tonic-gate #ifdef TCSETAW
93*0Sstevel@tonic-gate #define _DRAINO
94*0Sstevel@tonic-gate /*
95*0Sstevel@tonic-gate * SYSV simulation - waits until the entire queue is empty,
96*0Sstevel@tonic-gate * then sets the state to what it already is (e.g. no-op).
97*0Sstevel@tonic-gate * Unfortunately this only works if ms is zero.
98*0Sstevel@tonic-gate */
99*0Sstevel@tonic-gate if (ms <= 0) {
100*0Sstevel@tonic-gate #ifdef SYSV
101*0Sstevel@tonic-gate if (prog_istermios < 0) {
102*0Sstevel@tonic-gate int i;
103*0Sstevel@tonic-gate
104*0Sstevel@tonic-gate PROGTTY.c_lflag = PROGTTYS.c_lflag;
105*0Sstevel@tonic-gate PROGTTY.c_oflag = PROGTTYS.c_oflag;
106*0Sstevel@tonic-gate PROGTTY.c_iflag = PROGTTYS.c_iflag;
107*0Sstevel@tonic-gate PROGTTY.c_cflag = PROGTTYS.c_cflag;
108*0Sstevel@tonic-gate for (i = 0; i < NCC; i++)
109*0Sstevel@tonic-gate PROGTTY.c_cc[i] = PROGTTYS.c_cc[i];
110*0Sstevel@tonic-gate (void) ioctl(cur_term->Filedes, TCSETAW, &PROGTTY);
111*0Sstevel@tonic-gate } else
112*0Sstevel@tonic-gate (void) ioctl(cur_term->Filedes, TCSETSW, &PROGTTYS);
113*0Sstevel@tonic-gate #else /* SYSV */
114*0Sstevel@tonic-gate (void) ioctl(cur_term->Filedes, TCSETAW, &PROGTTY);
115*0Sstevel@tonic-gate #endif /* SYSV */
116*0Sstevel@tonic-gate return (OK);
117*0Sstevel@tonic-gate } else
118*0Sstevel@tonic-gate return (ERR);
119*0Sstevel@tonic-gate #endif /* TCSETAW */
120*0Sstevel@tonic-gate #endif /* TIOCOUTQ */
121*0Sstevel@tonic-gate
122*0Sstevel@tonic-gate #ifndef _DRAINO
123*0Sstevel@tonic-gate /*
124*0Sstevel@tonic-gate * No way to fake it, so we return failure.
125*0Sstevel@tonic-gate * Used #else to avoid warning from compiler about unreached stmt
126*0Sstevel@tonic-gate */
127*0Sstevel@tonic-gate return (ERR);
128*0Sstevel@tonic-gate #endif /* _DRAINO */
129*0Sstevel@tonic-gate /*NOTREACHED*/
130*0Sstevel@tonic-gate }
131