lib_data.c revision 174993
1156230Smux/**************************************************************************** 2156230Smux * Copyright (c) 1998-2005,2007 Free Software Foundation, Inc. * 3156230Smux * * 4156230Smux * Permission is hereby granted, free of charge, to any person obtaining a * 5156230Smux * copy of this software and associated documentation files (the * 6156230Smux * "Software"), to deal in the Software without restriction, including * 7156230Smux * without limitation the rights to use, copy, modify, merge, publish, * 8156230Smux * distribute, distribute with modifications, sublicense, and/or sell * 9156230Smux * copies of the Software, and to permit persons to whom the Software is * 10156230Smux * furnished to do so, subject to the following conditions: * 11156230Smux * * 12156230Smux * The above copyright notice and this permission notice shall be included * 13156230Smux * in all copies or substantial portions of the Software. * 14156230Smux * * 15156230Smux * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16156230Smux * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17156230Smux * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18156230Smux * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19156230Smux * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20156230Smux * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21156230Smux * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22156230Smux * * 23156230Smux * Except as contained in this notice, the name(s) of the above copyright * 24156230Smux * holders shall not be used in advertising or otherwise to promote the * 25156230Smux * sale, use or other dealings in this Software without prior written * 26156230Smux * authorization. * 27156230Smux ****************************************************************************/ 28156230Smux 29156230Smux/**************************************************************************** 30156230Smux * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 31156230Smux * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32156230Smux * and: Thomas E. Dickey 1996-on * 33156230Smux ****************************************************************************/ 34156230Smux 35156230Smux/* 36156230Smux** lib_data.c 37156230Smux** 38156230Smux** Common data that may/may not be allocated, but is referenced globally 39156230Smux** 40156230Smux*/ 41156230Smux 42156230Smux#include <curses.priv.h> 43156230Smux 44156230SmuxMODULE_ID("$Id: lib_data.c,v 1.34 2007/10/20 21:49:10 tom Exp $") 45 46/* 47 * OS/2's native linker complains if we don't initialize public data when 48 * constructing a dll (reported by J.J.G.Ripoll). 49 */ 50#if USE_REENTRANT 51NCURSES_EXPORT(WINDOW *) 52NCURSES_PUBLIC_VAR(stdscr) (void) 53{ 54 return SP ? SP->_stdscr : 0; 55} 56NCURSES_EXPORT(WINDOW *) 57NCURSES_PUBLIC_VAR(curscr) (void) 58{ 59 return SP ? SP->_curscr : 0; 60} 61NCURSES_EXPORT(WINDOW *) 62NCURSES_PUBLIC_VAR(newscr) (void) 63{ 64 return SP ? SP->_newscr : 0; 65} 66#else 67NCURSES_EXPORT_VAR(WINDOW *) stdscr = 0; 68NCURSES_EXPORT_VAR(WINDOW *) curscr = 0; 69NCURSES_EXPORT_VAR(WINDOW *) newscr = 0; 70#endif 71 72NCURSES_EXPORT_VAR(SCREEN *) _nc_screen_chain = 0; 73 74/* 75 * The variable 'SP' will be defined as a function on systems that cannot link 76 * data-only modules, since it is used in a lot of places within ncurses and we 77 * cannot guarantee that any application will use any particular function. We 78 * put the WINDOW variables in this module, because it appears that any 79 * application that uses them will also use 'SP'. 80 * 81 * This module intentionally does not reference other ncurses modules, to avoid 82 * module coupling that increases the size of the executable. 83 */ 84#if BROKEN_LINKER 85static SCREEN *my_screen; 86 87NCURSES_EXPORT(SCREEN *) 88_nc_screen(void) 89{ 90 return my_screen; 91} 92 93NCURSES_EXPORT(int) 94_nc_alloc_screen(void) 95{ 96 return ((my_screen = typeCalloc(SCREEN, 1)) != 0); 97} 98 99NCURSES_EXPORT(void) 100_nc_set_screen(SCREEN *sp) 101{ 102 my_screen = sp; 103} 104 105#else 106NCURSES_EXPORT_VAR(SCREEN *) SP = NULL; /* Some linkers require initialized data... */ 107#endif 108/* *INDENT-OFF* */ 109#define CHARS_0s { '\0' } 110 111#define TGETENT_0 { 0L, FALSE, NULL, NULL, NULL } 112#define TGETENT_0s { TGETENT_0, TGETENT_0, TGETENT_0, TGETENT_0 } 113 114NCURSES_EXPORT_VAR(NCURSES_GLOBALS) _nc_globals = { 115 0, /* have_sigwinch */ 116 0, /* cleanup_nested */ 117 118 FALSE, /* init_signals */ 119 FALSE, /* init_screen */ 120 121 NULL, /* comp_sourcename */ 122 NULL, /* comp_termtype */ 123 124 FALSE, /* have_tic_directory */ 125 FALSE, /* keep_tic_directory */ 126 TERMINFO, /* tic_directory */ 127 128 NULL, /* dbi_list */ 129 0, /* dbi_size */ 130 131 NULL, /* first_name */ 132 NULL, /* keyname_table */ 133 134 NULL, /* safeprint_buf */ 135 0, /* safeprint_used */ 136 137 TGETENT_0s, /* tgetent_cache */ 138 0, /* tgetent_index */ 139 0, /* tgetent_sequence */ 140 141#if USE_HOME_TERMINFO 142 NULL, /* home_terminfo */ 143#endif 144 145#if !USE_SAFE_SPRINTF 146 0, /* safeprint_cols */ 147 0, /* safeprint_rows */ 148#endif 149 150#ifdef TRACE 151 FALSE, /* init_trace */ 152 CHARS_0s, /* trace_fname */ 153 0, /* trace_level */ 154 NULL, /* trace_fp */ 155 156 NULL, /* tracearg_buf */ 157 0, /* tracearg_used */ 158 159 NULL, /* tracebuf_ptr */ 160 0, /* tracebuf_used */ 161 162 CHARS_0s, /* tracechr_buf */ 163 164 NULL, /* tracedmp_buf */ 165 0, /* tracedmp_used */ 166 167 CHARS_0s, /* tracemse_buf */ 168 169 NULL, /* tracetry_buf */ 170 0, /* tracetry_used */ 171 172#ifndef USE_TERMLIB 173 { CHARS_0s, CHARS_0s }, /* traceatr_color_buf */ 174 0, /* traceatr_color_sel */ 175 -1, /* traceatr_color_last */ 176#endif /* USE_TERMLIB */ 177 178#endif /* TRACE */ 179#ifdef USE_PTHREADS 180 PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, /* mutex_set_SP */ 181 PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, /* mutex_use_screen */ 182 PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, /* mutex_use_window */ 183 PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP, /* mutex_windowlist */ 184 PTHREAD_MUTEX_INITIALIZER, /* mutex_tst_tracef */ 185 PTHREAD_MUTEX_INITIALIZER, /* mutex_tracef */ 186 0, /* nested_tracef */ 187#endif 188}; 189 190#define STACK_FRAME_0 { { 0 }, 0 } 191#define STACK_FRAME_0s { STACK_FRAME_0 } 192#define NUM_VARS_0s { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 } 193 194#define RIPOFF_0 { 0,0 } 195#define RIPOFF_0s { RIPOFF_0 } 196 197NCURSES_EXPORT_VAR(NCURSES_PRESCREEN) _nc_prescreen = { 198 TRUE, /* use_env */ 199 FALSE, /* filter_mode */ 200 A_NORMAL, /* previous_attr */ 201 RIPOFF_0s, /* ripoff */ 202 NULL, /* rsp */ 203 { /* tparm_state */ 204#ifdef TRACE 205 NULL, /* tname */ 206#endif 207 NULL, /* tparam_base */ 208 209 STACK_FRAME_0s, /* stack */ 210 0, /* stack_ptr */ 211 212 NULL, /* out_buff */ 213 0, /* out_size */ 214 0, /* out_used */ 215 216 NULL, /* fmt_buff */ 217 0, /* fmt_size */ 218 219 NUM_VARS_0s, /* dynamic_var */ 220 NUM_VARS_0s, /* static_vars */ 221 }, 222 NULL, /* saved_tty */ 223#if BROKEN_LINKER || USE_REENTRANT 224 NULL, /* real_acs_map */ 225 0, /* LINES */ 226 0, /* COLS */ 227#ifdef TRACE 228 0L, /* _outchars */ 229 NULL, /* _tputs_trace */ 230#endif 231#endif 232}; 233/* *INDENT-ON* */ 234