1 /* $OpenBSD: use_screen.c,v 1.2 2023/10/17 09:52:09 nicm Exp $ */
2
3 /****************************************************************************
4 * Copyright 2018,2020 Thomas E. Dickey *
5 * Copyright 2007-2009,2016 Free Software Foundation, Inc. *
6 * *
7 * Permission is hereby granted, free of charge, to any person obtaining a *
8 * copy of this software and associated documentation files (the *
9 * "Software"), to deal in the Software without restriction, including *
10 * without limitation the rights to use, copy, modify, merge, publish, *
11 * distribute, distribute with modifications, sublicense, and/or sell *
12 * copies of the Software, and to permit persons to whom the Software is *
13 * furnished to do so, subject to the following conditions: *
14 * *
15 * The above copyright notice and this permission notice shall be included *
16 * in all copies or substantial portions of the Software. *
17 * *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
25 * *
26 * Except as contained in this notice, the name(s) of the above copyright *
27 * holders shall not be used in advertising or otherwise to promote the *
28 * sale, use or other dealings in this Software without prior written *
29 * authorization. *
30 ****************************************************************************/
31
32 /****************************************************************************
33 * Author: Thomas E. Dickey 2007 *
34 ****************************************************************************/
35
36 #include <curses.priv.h>
37
38 MODULE_ID("$Id: use_screen.c,v 1.2 2023/10/17 09:52:09 nicm Exp $")
39
NCURSES_EXPORT(int)40 NCURSES_EXPORT(int)
41 use_screen(SCREEN *screen, NCURSES_SCREEN_CB func, void *data)
42 {
43 SCREEN *save_SP;
44 int code = OK;
45 TR_FUNC_BFR(1);
46
47 T((T_CALLED("use_screen(%p,%s,%p)"),
48 (void *) screen,
49 TR_FUNC_ARG(0, func),
50 (void *) data));
51
52 /*
53 * FIXME - add a flag so a given thread can check if _it_ has already
54 * recurred through this point, return an error if so.
55 */
56 _nc_lock_global(curses);
57 save_SP = CURRENT_SCREEN;
58 set_term(screen);
59
60 code = func(screen, data);
61
62 set_term(save_SP);
63 _nc_unlock_global(curses);
64 returnCode(code);
65 }
66