1 /* TTY console functions.
2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
3 Copyright (C) 1994, 1995 Free Software Foundation, Inc.
4 Copyright (C) 1996 Ben Wing.
6 This file is part of XEmacs.
8 XEmacs is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by the
10 Free Software Foundation; either version 2, or (at your option) any
13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with XEmacs; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
23 /* Synched up with: Not in FSF. */
25 /* Authors: Ben Wing and Chuck Thompson. */
30 #include "console-tty.h"
31 #include "console-stream.h"
39 #include "file-coding.h"
42 DEFINE_CONSOLE_TYPE (tty);
43 DECLARE_IMAGE_INSTANTIATOR_FORMAT (nothing);
44 DECLARE_IMAGE_INSTANTIATOR_FORMAT (string);
45 DECLARE_IMAGE_INSTANTIATOR_FORMAT (formatted_string);
46 DECLARE_IMAGE_INSTANTIATOR_FORMAT (inherit);
48 Lisp_Object Qterminal_type;
49 Lisp_Object Qcontrolling_process;
53 allocate_tty_console_struct (struct console *con)
55 /* zero out all slots except the lisp ones ... */
56 CONSOLE_TTY_DATA (con) = xnew_and_zero (struct tty_console);
57 CONSOLE_TTY_DATA (con)->terminal_type = Qnil;
58 CONSOLE_TTY_DATA (con)->instream = Qnil;
59 CONSOLE_TTY_DATA (con)->outstream = Qnil;
63 tty_init_console (struct console *con, Lisp_Object props)
65 Lisp_Object tty = CONSOLE_CONNECTION (con);
66 Lisp_Object terminal_type = Qnil;
67 Lisp_Object controlling_process = Qnil;
68 struct tty_console *tty_con;
69 struct gcpro gcpro1, gcpro2;
71 GCPRO2 (terminal_type, controlling_process);
73 terminal_type = Fplist_get (props, Qterminal_type, Qnil);
74 controlling_process = Fplist_get (props, Qcontrolling_process, Qnil);
76 /* Determine the terminal type */
78 if (!NILP (terminal_type))
79 CHECK_STRING (terminal_type);
82 char *temp_type = getenv ("TERM");
86 error ("Cannot determine terminal type");
89 terminal_type = build_string (temp_type);
92 /* Determine the controlling process */
93 if (!NILP (controlling_process))
94 CHECK_INT (controlling_process);
96 /* Open the specified console */
98 allocate_tty_console_struct (con);
99 tty_con = CONSOLE_TTY_DATA (con);
101 if (internal_equal (tty, Vstdio_str, 0))
103 tty_con->infd = fileno (stdin);
104 tty_con->outfd = fileno (stdout);
105 tty_con->is_stdio = 1;
109 tty_con->infd = tty_con->outfd =
110 open ((char *) XSTRING_DATA (tty), O_RDWR);
111 if (tty_con->infd < 0)
112 error ("Unable to open tty %s", XSTRING_DATA (tty));
113 tty_con->is_stdio = 0;
116 tty_con->instream = make_filedesc_input_stream (tty_con->infd, 0, -1, 0);
117 tty_con->outstream = make_filedesc_output_stream (tty_con->outfd, 0, -1, 0);
120 make_decoding_input_stream (XLSTREAM (tty_con->instream),
121 Fget_coding_system (Qkeyboard));
122 Lstream_set_character_mode (XLSTREAM (tty_con->instream));
124 make_encoding_output_stream (XLSTREAM (tty_con->outstream),
125 Fget_coding_system (Qterminal));
126 #endif /* FILE_CODING */
127 tty_con->terminal_type = terminal_type;
128 tty_con->controlling_process = controlling_process;
130 if (NILP (CONSOLE_NAME (con)))
131 CONSOLE_NAME (con) = Ffile_name_nondirectory (tty);
134 pid_t controlling_tty_pg;
137 /* OK, the only sure-fire way I can think of to determine
138 whether a particular TTY is our controlling TTY is to check
139 if it has the same foreground process group as our controlling
140 TTY. This is OK because a process group can never simultaneously
141 be the foreground process group of two TTY's (in that case it
142 would have two controlling TTY's, which is not allowed). */
144 EMACS_GET_TTY_PROCESS_GROUP (tty_con->infd, &tty_pg);
145 cfd = open ("/dev/tty", O_RDWR, 0);
146 EMACS_GET_TTY_PROCESS_GROUP (cfd, &controlling_tty_pg);
148 if (tty_pg == controlling_tty_pg)
150 tty_con->controlling_terminal = 1;
151 XSETCONSOLE (Vcontrolling_terminal, con);
152 munge_tty_process_group ();
155 tty_con->controlling_terminal = 0;
162 tty_mark_console (struct console *con)
164 struct tty_console *tty_con = CONSOLE_TTY_DATA (con);
165 mark_object (tty_con->terminal_type);
166 mark_object (tty_con->instream);
167 mark_object (tty_con->outstream);
171 tty_initially_selected_for_input (struct console *con)
177 free_tty_console_struct (struct console *con)
179 struct tty_console *tty_con = CONSOLE_TTY_DATA (con);
182 if (tty_con->term_entry_buffer) /* allocated in term_init () */
184 xfree (tty_con->term_entry_buffer);
185 tty_con->term_entry_buffer = NULL;
188 CONSOLE_TTY_DATA (con) = NULL;
193 tty_delete_console (struct console *con)
195 Lstream_close (XLSTREAM (CONSOLE_TTY_DATA (con)->instream));
196 Lstream_close (XLSTREAM (CONSOLE_TTY_DATA (con)->outstream));
197 if (!CONSOLE_TTY_DATA (con)->is_stdio)
198 close (CONSOLE_TTY_DATA (con)->infd);
199 if (CONSOLE_TTY_DATA (con)->controlling_terminal)
201 Vcontrolling_terminal = Qnil;
202 unmunge_tty_process_group ();
204 free_tty_console_struct (con);
208 static struct console *
209 decode_tty_console (Lisp_Object console)
211 XSETCONSOLE (console, decode_console (console));
212 CHECK_TTY_CONSOLE (console);
213 return XCONSOLE (console);
216 DEFUN ("console-tty-terminal-type", Fconsole_tty_terminal_type,
218 Return the terminal type of TTY console CONSOLE.
222 return CONSOLE_TTY_DATA (decode_tty_console (console))->terminal_type;
225 DEFUN ("console-tty-controlling-process", Fconsole_tty_controlling_process,
227 Return the controlling process of tty console CONSOLE.
231 return CONSOLE_TTY_DATA (decode_tty_console (console))->controlling_process;
236 DEFUN ("console-tty-input-coding-system", Fconsole_tty_input_coding_system,
238 Return the input coding system of tty console CONSOLE.
242 return decoding_stream_coding_system
243 (XLSTREAM (CONSOLE_TTY_DATA (decode_tty_console (console))->instream));
246 DEFUN ("set-console-tty-input-coding-system", Fset_console_tty_input_coding_system,
248 Set the input coding system of tty console CONSOLE to CODESYS.
249 CONSOLE defaults to the selected console.
250 CODESYS defaults to the value of `keyboard-coding-system'.
254 set_decoding_stream_coding_system
255 (XLSTREAM (CONSOLE_TTY_DATA (decode_tty_console (console))->instream),
256 Fget_coding_system (NILP (codesys) ? Qkeyboard : codesys));
260 DEFUN ("console-tty-output-coding-system", Fconsole_tty_output_coding_system,
262 Return TTY CONSOLE's output coding system.
266 return encoding_stream_coding_system
267 (XLSTREAM (CONSOLE_TTY_DATA (decode_tty_console (console))->outstream));
270 DEFUN ("set-console-tty-output-coding-system", Fset_console_tty_output_coding_system,
272 Set the coding system of tty output of console CONSOLE to CODESYS.
273 CONSOLE defaults to the selected console.
274 CODESYS defaults to the value of `terminal-coding-system'.
278 set_encoding_stream_coding_system
279 (XLSTREAM (CONSOLE_TTY_DATA (decode_tty_console (console))->outstream),
280 Fget_coding_system (NILP (codesys) ? Qterminal : codesys));
282 face_property_was_changed (Vdefault_face, Qfont, Qtty);
286 /* #### Move this function to lisp */
287 DEFUN ("set-console-tty-coding-system", Fset_console_tty_coding_system,
289 Set the input and output coding systems of tty console CONSOLE to CODESYS.
290 CONSOLE defaults to the selected console.
291 If CODESYS is nil, the values of `keyboard-coding-system' and
292 `terminal-coding-system' will be used for the input and
293 output coding systems of CONSOLE.
297 Fset_console_tty_input_coding_system (console, codesys);
298 Fset_console_tty_output_coding_system (console, codesys);
301 #endif /* FILE_CODING */
305 tty_semi_canonicalize_console_connection (Lisp_Object connection,
308 return stream_semi_canonicalize_console_connection (connection, errb);
312 tty_canonicalize_console_connection (Lisp_Object connection,
315 return stream_canonicalize_console_connection (connection, errb);
319 tty_semi_canonicalize_device_connection (Lisp_Object connection,
322 return stream_semi_canonicalize_console_connection (connection, errb);
326 tty_canonicalize_device_connection (Lisp_Object connection,
329 return stream_canonicalize_console_connection (connection, errb);
333 /************************************************************************/
335 /************************************************************************/
338 syms_of_console_tty (void)
340 DEFSUBR (Fconsole_tty_terminal_type);
341 DEFSUBR (Fconsole_tty_controlling_process);
342 defsymbol (&Qterminal_type, "terminal-type");
343 defsymbol (&Qcontrolling_process, "controlling-process");
345 DEFSUBR (Fconsole_tty_output_coding_system);
346 DEFSUBR (Fset_console_tty_output_coding_system);
347 DEFSUBR (Fconsole_tty_input_coding_system);
348 DEFSUBR (Fset_console_tty_input_coding_system);
349 DEFSUBR (Fset_console_tty_coding_system);
350 #endif /* FILE_CODING */
354 console_type_create_tty (void)
356 INITIALIZE_CONSOLE_TYPE (tty, "tty", "console-tty-p");
358 /* console methods */
359 CONSOLE_HAS_METHOD (tty, init_console);
360 CONSOLE_HAS_METHOD (tty, mark_console);
361 CONSOLE_HAS_METHOD (tty, initially_selected_for_input);
362 CONSOLE_HAS_METHOD (tty, delete_console);
363 CONSOLE_HAS_METHOD (tty, canonicalize_console_connection);
364 CONSOLE_HAS_METHOD (tty, canonicalize_device_connection);
365 CONSOLE_HAS_METHOD (tty, semi_canonicalize_console_connection);
366 CONSOLE_HAS_METHOD (tty, semi_canonicalize_device_connection);
370 reinit_console_type_create_tty (void)
372 REINITIALIZE_CONSOLE_TYPE (tty);
376 image_instantiator_format_create_glyphs_tty (void)
378 IIFORMAT_VALID_CONSOLE (tty, nothing);
379 IIFORMAT_VALID_CONSOLE (tty, string);
380 IIFORMAT_VALID_CONSOLE (tty, formatted_string);
381 IIFORMAT_VALID_CONSOLE (tty, inherit);
385 vars_of_console_tty (void)