1 /* $OpenBSD: lib_cur_term.c,v 1.6 2010/01/12 23:22:06 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998-2003,2008 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Thomas E. Dickey <dickey@clark.net> 1997 * 33 ****************************************************************************/ 34 /* 35 * Module that "owns" the 'cur_term' variable: 36 * 37 * TERMINAL *set_curterm(TERMINAL *) 38 * int del_curterm(TERMINAL *) 39 */ 40 41 #include <curses.priv.h> 42 #include <term_entry.h> /* TTY, cur_term */ 43 #include <termcap.h> /* ospeed */ 44 45 MODULE_ID("$Id: lib_cur_term.c,v 1.6 2010/01/12 23:22:06 nicm Exp $") 46 47 #undef CUR 48 #define CUR termp->type. 49 50 #if BROKEN_LINKER || USE_REENTRANT 51 NCURSES_EXPORT(TERMINAL *) 52 NCURSES_PUBLIC_VAR(cur_term) (void) 53 { 54 return (SP != 0 && SP->_term != 0) ? SP->_term : _nc_prescreen._cur_term; 55 } 56 #else 57 NCURSES_EXPORT_VAR(TERMINAL *) cur_term = 0; 58 #endif 59 60 NCURSES_EXPORT(TERMINAL *) 61 set_curterm(TERMINAL * termp) 62 { 63 TERMINAL *oldterm; 64 65 T((T_CALLED("set_curterm(%p)"), termp)); 66 67 _nc_lock_global(curses); 68 oldterm = cur_term; 69 if (SP) 70 SP->_term = termp; 71 #if BROKEN_LINKER || USE_REENTRANT 72 _nc_prescreen._cur_term = termp; 73 #else 74 cur_term = termp; 75 #endif 76 if (termp != 0) { 77 ospeed = _nc_ospeed(termp->_baudrate); 78 if (termp->type.Strings) { 79 PC = (char) ((pad_char != NULL) ? pad_char[0] : 0); 80 } 81 } 82 _nc_unlock_global(curses); 83 84 T((T_RETURN("%p"), oldterm)); 85 return (oldterm); 86 } 87 88 NCURSES_EXPORT(int) 89 del_curterm(TERMINAL * termp) 90 { 91 int rc = ERR; 92 93 T((T_CALLED("del_curterm(%p)"), termp)); 94 95 _nc_lock_global(curses); 96 if (termp != 0) { 97 _nc_free_termtype(&(termp->type)); 98 FreeIfNeeded(termp->_termname); 99 free(termp); 100 if (termp == cur_term) 101 set_curterm(0); 102 rc = OK; 103 } 104 _nc_unlock_global(curses); 105 106 returnCode(rc); 107 } 108