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/* $OpenBSD: lib_data.c,v 1.3 2001/01/22 18:01:52 millert Exp $ */
/****************************************************************************
* Copyright (c) 1998,1999,2000 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 *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
****************************************************************************/
/*
** lib_data.c
**
** Common data that may/may not be allocated, but is referenced globally
**
*/
#include <curses.priv.h>
MODULE_ID("$From: lib_data.c,v 1.16 2000/12/10 02:55:07 tom Exp $")
/*
* OS/2's native linker complains if we don't initialize public data when
* constructing a dll (reported by J.J.G.Ripoll).
*/
NCURSES_EXPORT_VAR(WINDOW *)
stdscr = 0;
NCURSES_EXPORT_VAR(WINDOW *)
curscr = 0;
NCURSES_EXPORT_VAR(WINDOW *)
newscr = 0;
NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain = 0;
/*
* The variable 'SP' will be defined as a function on systems that cannot link
* data-only modules, since it is used in a lot of places within ncurses and we
* cannot guarantee that any application will use any particular function. We
* put the WINDOW variables in this module, because it appears that any
* application that uses them will also use 'SP'.
*
* This module intentionally does not reference other ncurses modules, to avoid
* module coupling that increases the size of the executable.
*/
#if BROKEN_LINKER
static SCREEN *my_screen;
NCURSES_EXPORT(SCREEN *)
_nc_screen(void)
{
return my_screen;
}
NCURSES_EXPORT(int)
_nc_alloc_screen(void)
{
return ((my_screen = typeCalloc(SCREEN, 1)) != 0);
}
NCURSES_EXPORT(void)
_nc_set_screen(SCREEN * sp)
{
my_screen = sp;
}
#else
NCURSES_EXPORT_VAR(SCREEN *) SP = NULL; /* Some linkers require initialized data... */
#endif
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