1 /* @(#)wwflush.c 8.1 (Berkeley) 6/6/93 */
2 /* $NetBSD: wwflush.c,v 1.10 2006/12/18 20:04:55 christos Exp $ */
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48 if ((row
= wwcursorrow
) < 0)
50 else if (row
>= wwnrow
)
52 if ((col
= wwcursorcol
) < 0)
54 else if (col
>= wwncol
)
67 sigset_t nsigset
, osigset
;
69 sigemptyset(&nsigset
);
70 sigaddset(&nsigset
, SIGALRM
);
71 sigprocmask(SIG_BLOCK
, &nsigset
, &osigset
);
75 (*tt
.tt_checkpoint
)();
80 for (wwdocheckpoint
= 0; !wwdocheckpoint
&& tt
.tt_ack
== 0;)
82 } while (tt
.tt_ack
== 0);
86 wwcopyscreen(wwcs
, wwos
);
92 wwcopyscreen(wwos
, wwcs
);
96 sigprocmask(SIG_SETMASK
, &osigset
, (sigset_t
*)0);
100 wwcopyscreen(union ww_char
**s1
, union ww_char
**s2
)
103 int s
= wwncol
* sizeof **s1
;
105 for (i
= wwnrow
; --i
>= 0;)
106 memmove((char *) *s2
++, (char *) *s1
++, s
);
110 wwalarm(int dummy __unused
)