1/****************************************************************************
2 * Copyright (c) 1998-2003,2008 Free Software Foundation, Inc.              *
3 *                                                                          *
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11 *                                                                          *
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14 *                                                                          *
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22 *                                                                          *
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27 ****************************************************************************/
28
29/****************************************************************************
30 *  Author: Thomas E. Dickey <dickey@clark.net> 1997                        *
31 ****************************************************************************/
32/*
33 * Module that "owns" the 'cur_term' variable:
34 *
35 *	TERMINAL *set_curterm(TERMINAL *)
36 *	int del_curterm(TERMINAL *)
37 */
38
39#include <curses.priv.h>
40#include <term_entry.h>		/* TTY, cur_term */
41#include <termcap.h>		/* ospeed */
42
43MODULE_ID("$Id: lib_cur_term.c,v 1.18 2008/08/16 19:22:55 tom Exp $")
44
45#undef CUR
46#define CUR termp->type.
47
48#if BROKEN_LINKER || USE_REENTRANT
49NCURSES_EXPORT(TERMINAL *)
50NCURSES_PUBLIC_VAR(cur_term) (void)
51{
52    return (SP != 0 && SP->_term != 0) ? SP->_term : _nc_prescreen._cur_term;
53}
54#else
55NCURSES_EXPORT_VAR(TERMINAL *) cur_term = 0;
56#endif
57
58NCURSES_EXPORT(TERMINAL *)
59set_curterm(TERMINAL * termp)
60{
61    TERMINAL *oldterm;
62
63    T((T_CALLED("set_curterm(%p)"), termp));
64
65    _nc_lock_global(curses);
66    oldterm = cur_term;
67    if (SP)
68	SP->_term = termp;
69#if BROKEN_LINKER || USE_REENTRANT
70    _nc_prescreen._cur_term = termp;
71#else
72    cur_term = termp;
73#endif
74    if (termp != 0) {
75	ospeed = _nc_ospeed(termp->_baudrate);
76	if (termp->type.Strings) {
77	    PC = (char) ((pad_char != NULL) ? pad_char[0] : 0);
78	}
79    }
80    _nc_unlock_global(curses);
81
82    T((T_RETURN("%p"), oldterm));
83    return (oldterm);
84}
85
86NCURSES_EXPORT(int)
87del_curterm(TERMINAL * termp)
88{
89    int rc = ERR;
90
91    T((T_CALLED("del_curterm(%p)"), termp));
92
93    _nc_lock_global(curses);
94    if (termp != 0) {
95	_nc_free_termtype(&(termp->type));
96	FreeIfNeeded(termp->_termname);
97	free(termp);
98	if (termp == cur_term)
99	    set_curterm(0);
100	rc = OK;
101    }
102    _nc_unlock_global(curses);
103
104    returnCode(rc);
105}
106