4c9b1375f288b839b7a65186948c92c01f5ab828
[ncurses.git] / ncurses / base / use_window.c
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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 1.3 2008/01/13 00:36:22 tom Exp $")
36
37 #ifdef USE_PTHREADS
38 NCURSES_EXPORT(void)
39 _nc_lock_window(WINDOW *win)
40 {
41     WINDOWLIST *p;
42
43     _nc_lock_global(windowlist);
44     for (p = _nc_windows; p != 0; p = p->next) {
45         if (&(p->win) == win) {
46             _nc_mutex_lock(&(p->mutex_use_window));
47             break;
48         }
49     }
50     _nc_unlock_global(windowlist);
51 }
52
53 NCURSES_EXPORT(void)
54 _nc_unlock_window(WINDOW *win)
55 {
56     WINDOWLIST *p;
57
58     _nc_lock_global(windowlist);
59     for (p = _nc_windows; p != 0; p = p->next) {
60         if (&(p->win) == win) {
61             _nc_mutex_unlock(&(p->mutex_use_window));
62             break;
63         }
64     }
65     _nc_unlock_global(windowlist);
66 }
67 #endif
68
69 NCURSES_EXPORT(int)
70 use_window(WINDOW *win, NCURSES_CALLBACK func, void *data)
71 {
72     int code = OK;
73
74     T((T_CALLED("use_window(%p,%p,%p)"), win, func, data));
75     _nc_lock_window(win);
76     code = func(win, data);
77     _nc_unlock_window(win);
78
79     returnCode(code);
80 }