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/* $OpenBSD: lib_cur_term.c,v 1.7 2023/10/17 09:52:09 nicm Exp $ */
/****************************************************************************
,* Copyright 2020-2021,2022 Thomas E. Dickey *
* Copyright 1998-2016,2017 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: Thomas E. Dickey <dickey@clark.net> 1997 *
****************************************************************************/
/*
* Module that "owns" the 'cur_term' variable:
*
* TERMINAL *set_curterm(TERMINAL *)
* int del_curterm(TERMINAL *)
*/
#include <curses.priv.h>
#include <termcap.h> /* ospeed */
#include <tic.h> /* VALID_STRING */
MODULE_ID("$Id: lib_cur_term.c,v 1.7 2023/10/17 09:52:09 nicm Exp $")
#undef CUR
#define CUR TerminalType(termp).
#if USE_REENTRANT
NCURSES_EXPORT(TERMINAL *)
NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_DCL0)
{
return ((0 != TerminalOf(SP_PARM)) ? TerminalOf(SP_PARM) : CurTerm);
}
#if NCURSES_SP_FUNCS
NCURSES_EXPORT(TERMINAL *)
_nc_get_cur_term(void)
{
return NCURSES_SP_NAME(_nc_get_cur_term) (CURRENT_SCREEN);
}
#endif
NCURSES_EXPORT(TERMINAL *)
NCURSES_PUBLIC_VAR(cur_term) (void)
{
#if NCURSES_SP_FUNCS
return NCURSES_SP_NAME(_nc_get_cur_term) (CURRENT_SCREEN);
#else
return NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_ARG);
#endif
}
#else
NCURSES_EXPORT_VAR(TERMINAL *) cur_term = 0;
#endif
NCURSES_EXPORT(TERMINAL *)
NCURSES_SP_NAME(set_curterm) (NCURSES_SP_DCLx TERMINAL *termp)
{
TERMINAL *oldterm;
T((T_CALLED("set_curterm(%p)"), (void *) termp));
_nc_lock_global(curses);
oldterm = cur_term;
if (SP_PARM)
SP_PARM->_term = termp;
#if USE_REENTRANT
CurTerm = termp;
#else
cur_term = termp;
#endif
if (termp != 0) {
#ifdef USE_TERM_DRIVER
TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) termp;
ospeed = (NCURSES_OSPEED) _nc_ospeed(termp->_baudrate);
if (TCB->drv &&
TCB->drv->isTerminfo &&
TerminalType(termp).Strings) {
PC = (char) (VALID_STRING(pad_char) ? pad_char[0] : 0);
}
TCB->csp = SP_PARM;
#else
ospeed = (NCURSES_OSPEED) _nc_ospeed(termp->_baudrate);
if (TerminalType(termp).Strings) {
PC = (char) (VALID_STRING(pad_char) ? pad_char[0] : 0);
}
#endif
#if !USE_REENTRANT
save_ttytype(termp);
#endif
}
_nc_unlock_global(curses);
T((T_RETURN("%p"), (void *) oldterm));
return (oldterm);
}
#if NCURSES_SP_FUNCS
NCURSES_EXPORT(TERMINAL *)
set_curterm(TERMINAL *termp)
{
return NCURSES_SP_NAME(set_curterm) (CURRENT_SCREEN, termp);
}
#endif
NCURSES_EXPORT(int)
NCURSES_SP_NAME(del_curterm) (NCURSES_SP_DCLx TERMINAL *termp)
{
int rc = ERR;
T((T_CALLED("del_curterm(%p, %p)"), (void *) SP_PARM, (void *) termp));
if (termp != 0) {
#ifdef USE_TERM_DRIVER
TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) termp;
#endif
TERMINAL *cur = (
#if USE_REENTRANT
NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_ARG)
#else
cur_term
#endif
);
#if NCURSES_EXT_NUMBERS
#if NCURSES_EXT_COLORS
_nc_free_termtype1(&termp->type);
#else
_nc_free_termtype2(&termp->type);
#endif
#endif
_nc_free_termtype2(&TerminalType(termp));
if (termp == cur)
NCURSES_SP_NAME(set_curterm) (NCURSES_SP_ARGx 0);
FreeIfNeeded(termp->_termname);
#if USE_HOME_TERMINFO
if (_nc_globals.home_terminfo != 0) {
FreeAndNull(_nc_globals.home_terminfo);
}
#endif
#ifdef USE_TERM_DRIVER
if (TCB->drv)
TCB->drv->td_release(TCB);
#endif
#if NO_LEAKS
/* discard memory used in tgetent's cache for this terminal */
_nc_tgetent_leak(termp);
#endif
if (--_nc_globals.terminal_count == 0) {
_nc_free_tparm(termp);
}
free(termp->tparm_state.fmt_buff);
free(termp->tparm_state.out_buff);
free(termp);
rc = OK;
}
returnCode(rc);
}
#if NCURSES_SP_FUNCS
NCURSES_EXPORT(int)
del_curterm(TERMINAL *termp)
{
int rc;
_nc_lock_global(curses);
rc = NCURSES_SP_NAME(del_curterm) (CURRENT_SCREEN, termp);
_nc_unlock_global(curses);
return (rc);
}
#endif
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