ncurses 5.6 - patch 20080223

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

diff --git a/ncurses/base/lib_newwin.c b/ncurses/base/lib_newwin.c
index c0980ad589934fbb5fa311ab7f784dabc59a6c04..835bb0bccae1e58b570dde770523352d5fecbfd5 100644 (file)
--- a/ncurses/base/lib_newwin.c
+++ b/ncurses/base/lib_newwin.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2004,2005 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2007,2008 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -40,8 +40,9 @@
 */
 
 #include <curses.priv.h>
+#include <stddef.h>
 
-MODULE_ID("$Id: lib_newwin.c,v 1.36 2005/04/09 15:23:04 tom Exp $")
+MODULE_ID("$Id: lib_newwin.c,v 1.45 2008/02/23 20:57:58 tom Exp $")
 
 static WINDOW *
 remove_window_from_screen(WINDOW *win)
@@ -52,16 +53,22 @@ remove_window_from_screen(WINDOW *win)
        SCREEN *sp = *scan;
        if (sp->_curscr == win) {
            sp->_curscr = 0;
+#if !USE_REENTRANT
            if (win == curscr)
                curscr = 0;
+#endif
        } else if (sp->_stdscr == win) {
            sp->_stdscr = 0;
+#if !USE_REENTRANT
            if (win == stdscr)
                stdscr = 0;
+#endif
        } else if (sp->_newscr == win) {
            sp->_newscr = 0;
+#if !USE_REENTRANT
            if (win == newscr)
                newscr = 0;
+#endif
        } else {
            scan = &(*scan)->_next_screen;
            continue;
@@ -79,29 +86,34 @@ _nc_freewin(WINDOW *win)
     int i;
     int result = ERR;
 
+    T((T_CALLED("_nc_freewin(%p)"), win));
+
     if (win != 0) {
-       for (p = _nc_windows, q = 0; p != 0; q = p, p = p->next) {
-           if (&(p->win) == win) {
-               remove_window_from_screen(win);
-               if (q == 0)
-                   _nc_windows = p->next;
-               else
-                   q->next = p->next;
-
-               if (!(win->_flags & _SUBWIN)) {
-                   for (i = 0; i <= win->_maxy; i++)
-                       FreeIfNeeded(win->_line[i].text);
+       if (_nc_try_global(windowlist) == 0) {
+           for (p = _nc_windows, q = 0; p != 0; q = p, p = p->next) {
+               if (&(p->win) == win) {
+                   remove_window_from_screen(win);
+                   if (q == 0)
+                       _nc_windows = p->next;
+                   else
+                       q->next = p->next;
+
+                   if (!(win->_flags & _SUBWIN)) {
+                       for (i = 0; i <= win->_maxy; i++)
+                           FreeIfNeeded(win->_line[i].text);
+                   }
+                   free(win->_line);
+                   free(p);
+
+                   result = OK;
+                   T(("...deleted win=%p", win));
+                   break;
                }
-               free(win->_line);
-               free(p);
-
-               result = OK;
-               T(("...deleted win=%p", win));
-               break;
            }
+           _nc_unlock_global(windowlist);
        }
     }
-    return result;
+    returnCode(result);
 }
 
 NCURSES_EXPORT(WINDOW *)
@@ -173,7 +185,7 @@ derwin(WINDOW *orig, int num_lines, int num_columns, int begy, int begx)
 
     win->_pary = begy;
     win->_parx = begx;
-    win->_attrs = orig->_attrs;
+    WINDOW_ATTRS(win) = WINDOW_ATTRS(orig);
     win->_nc_bkgd = orig->_nc_bkgd;
 
     for (i = 0; i < num_lines; i++)
@@ -188,7 +200,7 @@ NCURSES_EXPORT(WINDOW *)
 subwin(WINDOW *w, int l, int c, int y, int x)
 {
     T((T_CALLED("subwin(%p, %d, %d, %d, %d)"), w, l, c, y, x));
-    T(("parent has begy = %d, begx = %d", w->_begy, w->_begx));
+    T(("parent has begy = %ld, begx = %ld", (long) w->_begy, (long) w->_begx));
 
     returnWin(derwin(w, l, c, y - w->_begy, x - w->_begx));
 }
@@ -208,24 +220,28 @@ _nc_makenew(int num_lines, int num_columns, int begy, int begx, int flags)
     WINDOW *win;
     bool is_pad = (flags & _ISPAD);
 
-    T(("_nc_makenew(%d,%d,%d,%d)", num_lines, num_columns, begy, begx));
+    T((T_CALLED("_nc_makenew(%d,%d,%d,%d)"), num_lines, num_columns, begy, begx));
 
     if (SP == 0)
-       return 0;
+       returnWin(0);
 
     if (!dimension_limit(num_lines) || !dimension_limit(num_columns))
-       return 0;
+       returnWin(0);
 
     if ((wp = typeCalloc(WINDOWLIST, 1)) == 0)
-       return 0;
+       returnWin(0);
+
+    _nc_mutex_init(&(wp->mutex_use_window));
 
     win = &(wp->win);
 
     if ((win->_line = typeCalloc(struct ldat, ((unsigned) num_lines))) == 0) {
        free(win);
-       return 0;
+       returnWin(0);
     }
 
+    _nc_lock_global(windowlist);
+
     win->_curx = 0;
     win->_cury = 0;
     win->_maxy = num_lines - 1;
@@ -235,7 +251,7 @@ _nc_makenew(int num_lines, int num_columns, int begy, int begx, int flags)
     win->_yoffset = SP->_topstolen;
 
     win->_flags = flags;
-    win->_attrs = A_NORMAL;
+    WINDOW_ATTRS(win) = A_NORMAL;
     SetChar(win->_nc_bkgd, BLANK_TEXT, BLANK_ATTR);
 
     win->_clear = is_pad ? FALSE : (num_lines == screen_lines
@@ -303,5 +319,6 @@ _nc_makenew(int num_lines, int num_columns, int begy, int begx, int flags)
 
     T((T_CREATE("window %p"), win));
 
-    return (win);
+    _nc_unlock_global(windowlist);
+    returnWin(win);
 }