ncurses 5.6 - patch 20080308

[ncurses.git] / ncurses / base / lib_delwin.c

diff --git a/ncurses/base/lib_delwin.c b/ncurses/base/lib_delwin.c
index 3f612bf06d79050c3697c59cdd9badd0518c5f43..fc68f9d68deeef6f3f7d1065e0151947ceb53a9f 100644 (file)
--- a/ncurses/base/lib_delwin.c
+++ b/ncurses/base/lib_delwin.c
@@ -40,7 +40,7 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_delwin.c,v 1.14 2007/10/20 21:51:07 tom Exp $")
+MODULE_ID("$Id: lib_delwin.c,v 1.15 2007/12/22 23:34:26 tom Exp $")
 
 static bool
 cannot_delete(WINDOW *win)
@@ -67,19 +67,23 @@ delwin(WINDOW *win)
 
     T((T_CALLED("delwin(%p)"), win));
 
-    _nc_lock_global(windowlist);
-    if (win == 0
-       || cannot_delete(win)) {
-       result = ERR;
-    } else {
+    if (_nc_try_global(windowlist) == 0) {
+       _nc_lock_window(win);
+       if (win == 0
+           || cannot_delete(win)) {
+           result = ERR;
+           _nc_unlock_window(win);
+       } else {
 
-       if (win->_flags & _SUBWIN)
-           touchwin(win->_parent);
-       else if (curscr != 0)
-           touchwin(curscr);
+           if (win->_flags & _SUBWIN)
+               touchwin(win->_parent);
+           else if (curscr != 0)
+               touchwin(curscr);
 
-       result = _nc_freewin(win);
+           _nc_unlock_window(win);
+           result = _nc_freewin(win);
+       }
+       _nc_unlock_global(windowlist);
     }
-    _nc_unlock_global(windowlist);
     returnCode(result);
 }