xref: /freebsd/contrib/ncurses/ncurses/base/use_window.c (revision f7c4bd95ba735bd6a5454b4953945a99cefbb80c)
1 /****************************************************************************
2  * Copyright (c) 2007,2008 Free Software Foundation, Inc.                   *
3  *                                                                          *
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11  *                                                                          *
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28 
29 /****************************************************************************
30  *     Author: Thomas E. Dickey                        2007                 *
31  ****************************************************************************/
32 
33 #include <curses.priv.h>
34 
35 MODULE_ID("$Id: use_window.c,v 1.7 2008/05/03 14:09:38 tom Exp $")
36 
37 #ifdef USE_PTHREADS
38 NCURSES_EXPORT(void)
39 _nc_lock_window(const WINDOW *win)
40 {
41     WINDOWLIST *p;
42 
43     _nc_lock_global(windowlist);
44     for (each_window(p)) {
45 	if (&(p->win) == win) {
46 	    _nc_mutex_lock(&(p->mutex_use_window));
47 	    break;
48 	}
49     }
50 }
51 
52 NCURSES_EXPORT(void)
53 _nc_unlock_window(const WINDOW *win)
54 {
55     WINDOWLIST *p;
56 
57     for (each_window(p)) {
58 	if (&(p->win) == win) {
59 	    _nc_mutex_unlock(&(p->mutex_use_window));
60 	    break;
61 	}
62     }
63     _nc_unlock_global(windowlist);
64 }
65 #endif
66 
67 NCURSES_EXPORT(int)
68 use_window(WINDOW *win, NCURSES_WINDOW_CB func, void *data)
69 {
70     int code = OK;
71 
72     T((T_CALLED("use_window(%p,%p,%p)"), win, func, data));
73     _nc_lock_window(win);
74     code = func(win, data);
75     _nc_unlock_window(win);
76 
77     returnCode(code);
78 }
79