1 /**************************************************************************** 2 * Copyright (c) 1998-2003,2008 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 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 43 MODULE_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 49 NCURSES_EXPORT(TERMINAL *) 50 NCURSES_PUBLIC_VAR(cur_term) (void) 51 { 52 return (SP != 0 && SP->_term != 0) ? SP->_term : _nc_prescreen._cur_term; 53 } 54 #else 55 NCURSES_EXPORT_VAR(TERMINAL *) cur_term = 0; 56 #endif 57 58 NCURSES_EXPORT(TERMINAL *) 59 set_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 86 NCURSES_EXPORT(int) 87 del_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