ncursesw-morphos/ncurses/tinfo/use_screen.c
Thomas E. Dickey 1078c0231b ncurses 5.6 - patch 20080607
+ finish changes to wgetch(), making it switch as needed to the
  window's actual screen when calling wrefresh() and wgetnstr().  That
  allows wgetch() to get used concurrently in different threads with
  some minor restrictions, e.g., the application should not delete a
  window which is being used in a wgetch().
+ simplify mutex's, combining the window- and screen-mutex's.
2008-06-08 00:40:16 +00:00

59 lines
2.9 KiB
C

/****************************************************************************
* Copyright (c) 2007,2008 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
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* 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. *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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/****************************************************************************
* Author: Thomas E. Dickey 2007 *
****************************************************************************/
#include <curses.priv.h>
MODULE_ID("$Id: use_screen.c,v 1.6 2008/06/07 19:16:56 tom Exp $")
NCURSES_EXPORT(int)
use_screen(SCREEN *screen, NCURSES_SCREEN_CB func, void *data)
{
SCREEN *save_SP;
int code = OK;
T((T_CALLED("use_screen(%p,%p,%p)"), screen, func, data));
/*
* FIXME - add a flag so a given thread can check if _it_ has already
* recurred through this point, return an error if so.
*/
_nc_lock_global(curses);
save_SP = SP;
set_term(screen);
code = func(screen, data);
set_term(save_SP);
_nc_unlock_global(curses);
returnCode(code);
}