1 /**************************************************************************** 2 * Copyright (c) 1998-2009,2010 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 <termcap.h> /* ospeed */ 41 42 MODULE_ID("$Id: lib_cur_term.c,v 1.30 2010/12/19 01:38:45 tom Exp $") 43 44 #undef CUR 45 #define CUR termp->type. 46 47 #if BROKEN_LINKER && !USE_REENTRANT 48 NCURSES_EXPORT_VAR(TERMINAL *) cur_term = 0; 49 #elif BROKEN_LINKER || USE_REENTRANT 50 51 NCURSES_EXPORT(TERMINAL *) 52 NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_DCL0) 53 { 54 return ((0 != TerminalOf(SP_PARM)) ? TerminalOf(SP_PARM) : CurTerm); 55 } 56 57 #if NCURSES_SP_FUNCS 58 NCURSES_EXPORT(TERMINAL *) 59 _nc_get_cur_term(void) 60 { 61 return NCURSES_SP_NAME(_nc_get_cur_term) (CURRENT_SCREEN); 62 } 63 #endif 64 65 NCURSES_EXPORT(TERMINAL *) 66 NCURSES_PUBLIC_VAR(cur_term) (void) 67 { 68 #if NCURSES_SP_FUNCS 69 return NCURSES_SP_NAME(_nc_get_cur_term) (CURRENT_SCREEN); 70 #else 71 return NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_ARG); 72 #endif 73 } 74 75 #else 76 NCURSES_EXPORT_VAR(TERMINAL *) cur_term = 0; 77 #endif 78 79 NCURSES_EXPORT(TERMINAL *) 80 NCURSES_SP_NAME(set_curterm) (NCURSES_SP_DCLx TERMINAL * termp) 81 { 82 TERMINAL *oldterm; 83 84 T((T_CALLED("set_curterm(%p)"), (void *) termp)); 85 86 _nc_lock_global(curses); 87 oldterm = cur_term; 88 if (SP_PARM) 89 SP_PARM->_term = termp; 90 #if BROKEN_LINKER && !USE_REENTRANT 91 cur_term = termp; 92 #else 93 CurTerm = termp; 94 #endif 95 if (termp != 0) { 96 #ifdef USE_TERM_DRIVER 97 TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) termp; 98 ospeed = (NCURSES_OSPEED) _nc_ospeed(termp->_baudrate); 99 if (TCB->drv->isTerminfo && termp->type.Strings) { 100 PC = (char) ((pad_char != NULL) ? pad_char[0] : 0); 101 } 102 TCB->csp = SP_PARM; 103 #else 104 ospeed = (NCURSES_OSPEED) _nc_ospeed(termp->_baudrate); 105 if (termp->type.Strings) { 106 PC = (char) ((pad_char != NULL) ? pad_char[0] : 0); 107 } 108 #endif 109 } 110 _nc_unlock_global(curses); 111 112 T((T_RETURN("%p"), (void *) oldterm)); 113 return (oldterm); 114 } 115 116 #if NCURSES_SP_FUNCS 117 NCURSES_EXPORT(TERMINAL *) 118 set_curterm(TERMINAL * termp) 119 { 120 return NCURSES_SP_NAME(set_curterm) (CURRENT_SCREEN, termp); 121 } 122 #endif 123 124 NCURSES_EXPORT(int) 125 NCURSES_SP_NAME(del_curterm) (NCURSES_SP_DCLx TERMINAL * termp) 126 { 127 int rc = ERR; 128 129 T((T_CALLED("del_curterm(%p, %p)"), (void *) SP_PARM, (void *) termp)); 130 131 if (termp != 0) { 132 #ifdef USE_TERM_DRIVER 133 TERMINAL_CONTROL_BLOCK *TCB = (TERMINAL_CONTROL_BLOCK *) termp; 134 #endif 135 TERMINAL *cur = ( 136 #if BROKEN_LINKER && !USE_REENTRANT 137 cur_term 138 #elif BROKEN_LINKER || USE_REENTRANT 139 NCURSES_SP_NAME(_nc_get_cur_term) (NCURSES_SP_ARG) 140 #else 141 cur_term 142 #endif 143 ); 144 145 _nc_free_termtype(&(termp->type)); 146 if (termp == cur) 147 NCURSES_SP_NAME(set_curterm) (NCURSES_SP_ARGx 0); 148 149 FreeIfNeeded(termp->_termname); 150 #if USE_HOME_TERMINFO 151 if (_nc_globals.home_terminfo != 0) 152 FreeAndNull(_nc_globals.home_terminfo); 153 #endif 154 #ifdef USE_TERM_DRIVER 155 if (TCB->drv) 156 TCB->drv->release(TCB); 157 #endif 158 free(termp); 159 160 rc = OK; 161 } 162 returnCode(rc); 163 } 164 165 #if NCURSES_SP_FUNCS 166 NCURSES_EXPORT(int) 167 del_curterm(TERMINAL * termp) 168 { 169 int rc = ERR; 170 171 _nc_lock_global(curses); 172 rc = NCURSES_SP_NAME(del_curterm) (CURRENT_SCREEN, termp); 173 _nc_unlock_global(curses); 174 175 return (rc); 176 } 177 #endif 178