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comparison src/console-stream.c @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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-1:000000000000 0:376386a54a3c
1 /* Stream device functions.
2 Copyright (C) 1995 Free Software Foundation, Inc.
3 Copyright (C) 1996 Ben Wing.
4
5 This file is part of XEmacs.
6
7 XEmacs is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published by the
9 Free Software Foundation; either version 2, or (at your option) any
10 later version.
11
12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with XEmacs; see the file COPYING. If not, write to
19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
21
22 /* Synched up with: Not in FSF. */
23
24 /* This file has been Mule-ized. */
25
26 /* Written by Ben Wing. */
27
28 #include <config.h>
29 #include "lisp.h"
30
31 #include "console-stream.h"
32 #include "console-tty.h"
33 #include "events.h"
34 #include "frame.h"
35 #include "redisplay.h"
36 #include "sysdep.h"
37 #include "window.h"
38
39 DEFINE_CONSOLE_TYPE (stream);
40
41 Lisp_Object Vterminal_console;
42 Lisp_Object Vterminal_device;
43 Lisp_Object Vterminal_frame;
44
45 extern Lisp_Object Vstdio_str; /* in console-tty.c */
46
47 static void
48 allocate_stream_console_struct (struct console *con)
49 {
50 con->console_data =
51 (struct stream_console *) xmalloc (sizeof (struct stream_console));
52
53 /* zero out all slots. */
54 memset (con->console_data, 0, sizeof (struct stream_console));
55 }
56
57 static void
58 stream_init_console (struct console *con, Lisp_Object params)
59 {
60 Lisp_Object tty = CONSOLE_CONNECTION (con);
61 FILE *infd, *outfd, *errfd;
62
63 /* Open the specified console */
64
65 if (NILP (tty) || !NILP (Fequal (tty, Vstdio_str)))
66 {
67 infd = stdin;
68 outfd = stdout;
69 errfd = stderr;
70 }
71 else
72 {
73 CHECK_STRING (tty);
74 infd = outfd = errfd =
75 fopen ((char *) string_data (XSTRING (tty)), "r+");
76 if (!infd)
77 error ("Unable to open tty %s", string_data (XSTRING (tty)));
78 }
79
80 allocate_stream_console_struct (con);
81 CONSOLE_STREAM_DATA (con)->infd = infd;
82 CONSOLE_STREAM_DATA (con)->outfd = outfd;
83 CONSOLE_STREAM_DATA (con)->errfd = errfd;
84 }
85
86 static void
87 stream_init_device (struct device *d, Lisp_Object params)
88 {
89 struct console *con = XCONSOLE (DEVICE_CONSOLE (d));
90
91 DEVICE_INFD (d) = fileno (CONSOLE_STREAM_DATA (con)->infd);
92 DEVICE_OUTFD (d) = fileno (CONSOLE_STREAM_DATA (con)->outfd);
93 init_baud_rate (d);
94 init_one_device (d);
95 }
96
97 static int
98 stream_initially_selected_for_input (struct console *con)
99 {
100 return noninteractive && initialized;
101 }
102
103 static void
104 free_stream_console_struct (struct console *con)
105 {
106 struct stream_console *tcon = (struct stream_console *) con->console_data;
107 if (tcon)
108 xfree (tcon);
109 }
110
111 extern int stdout_needs_newline;
112
113 static void
114 stream_delete_console (struct console *con)
115 {
116 if (/* CONSOLE_STREAM_DATA (con)->needs_newline */
117 stdout_needs_newline) /* #### clean this up */
118 {
119 fputc ('\n', CONSOLE_STREAM_DATA (con)->outfd);
120 fflush (CONSOLE_STREAM_DATA (con)->outfd);
121 }
122 if (CONSOLE_STREAM_DATA (con)->infd != stdin)
123 fclose (CONSOLE_STREAM_DATA (con)->infd);
124 free_stream_console_struct (con);
125 }
126
127 static Lisp_Object
128 stream_semi_canonicalize_console_connection (Lisp_Object connection,
129 Error_behavior errb)
130 {
131 return tty_semi_canonicalize_console_connection (connection, errb);
132 }
133
134 static Lisp_Object
135 stream_canonicalize_console_connection (Lisp_Object connection,
136 Error_behavior errb)
137 {
138 return tty_canonicalize_console_connection (connection, errb);
139 }
140
141 static Lisp_Object
142 stream_semi_canonicalize_device_connection (Lisp_Object connection,
143 Error_behavior errb)
144 {
145 return tty_semi_canonicalize_device_connection (connection, errb);
146 }
147
148 static Lisp_Object
149 stream_canonicalize_device_connection (Lisp_Object connection,
150 Error_behavior errb)
151 {
152 return tty_canonicalize_device_connection (connection, errb);
153 }
154
155
156 static void
157 stream_init_frame_1 (struct frame *f, Lisp_Object props)
158 {
159 struct device *d = XDEVICE (FRAME_DEVICE (f));
160 if (!NILP (DEVICE_FRAME_LIST (d)))
161 error ("Only one frame allowed on stream devices");
162
163 f->name = build_string ("stream");
164 f->height = 80;
165 f->width = 24;
166 f->visible = 0; /* so redisplay doesn't try to do anything */
167 }
168
169
170 static int
171 stream_text_width (struct face_cachel *cachel, CONST Emchar *str,
172 Charcount len)
173 {
174 return len;
175 }
176
177 static int
178 stream_left_margin_width (struct window *w)
179 {
180 return 0;
181 }
182
183 static int
184 stream_right_margin_width (struct window *w)
185 {
186 return 0;
187 }
188
189 static int
190 stream_divider_width (void)
191 {
192 return 1;
193 }
194
195 static int
196 stream_divider_height (void)
197 {
198 return 1;
199 }
200
201 static int
202 stream_eol_cursor_width (void)
203 {
204 return 1;
205 }
206
207 static void
208 stream_output_begin (struct device *d)
209 {
210 }
211
212 static void
213 stream_output_end (struct device *d)
214 {
215 }
216
217 static void
218 stream_output_display_block (struct window *w, struct display_line *dl,
219 int block, int start, int end,
220 int start_pixpos, int cursor_start,
221 int cursor_width, int cursor_height)
222 {
223 }
224
225 static void
226 stream_output_vertical_divider (struct window *w, int clear)
227 {
228 }
229
230 static void
231 stream_clear_to_window_end (struct window *w, int ypos1, int ypos2)
232 {
233 }
234
235 static void
236 stream_clear_region (Lisp_Object locale, face_index findex, int x, int y,
237 int width, int height)
238 {
239 }
240
241 static void
242 stream_clear_frame (struct frame *f)
243 {
244 }
245
246 static int
247 stream_flash (struct device *d)
248 {
249 return 0; /* sorry can't do it */
250 }
251
252 static void
253 stream_ring_bell (struct device *d, int volume, int pitch, int duration)
254 {
255 struct console *c = XCONSOLE (DEVICE_CONSOLE (d));
256 fputc (07, CONSOLE_STREAM_DATA (c)->outfd);
257 fflush (CONSOLE_STREAM_DATA (c)->outfd);
258 }
259
260
261 /************************************************************************/
262 /* initialization */
263 /************************************************************************/
264
265 void
266 console_type_create_stream (void)
267 {
268 INITIALIZE_CONSOLE_TYPE (stream, "stream", "console-stream-p");
269
270 /* console methods */
271 CONSOLE_HAS_METHOD (stream, init_console);
272 CONSOLE_HAS_METHOD (stream, initially_selected_for_input);
273 CONSOLE_HAS_METHOD (stream, delete_console);
274 CONSOLE_HAS_METHOD (stream, canonicalize_console_connection);
275 CONSOLE_HAS_METHOD (stream, canonicalize_device_connection);
276 CONSOLE_HAS_METHOD (stream, semi_canonicalize_console_connection);
277 CONSOLE_HAS_METHOD (stream, semi_canonicalize_device_connection);
278
279 /* device methods */
280 CONSOLE_HAS_METHOD (stream, init_device);
281
282 /* frame methods */
283 CONSOLE_HAS_METHOD (stream, init_frame_1);
284
285 /* redisplay methods */
286 CONSOLE_HAS_METHOD (stream, left_margin_width);
287 CONSOLE_HAS_METHOD (stream, right_margin_width);
288 CONSOLE_HAS_METHOD (stream, text_width);
289 CONSOLE_HAS_METHOD (stream, output_display_block);
290 CONSOLE_HAS_METHOD (stream, output_vertical_divider);
291 CONSOLE_HAS_METHOD (stream, divider_width);
292 CONSOLE_HAS_METHOD (stream, divider_height);
293 CONSOLE_HAS_METHOD (stream, eol_cursor_width);
294 CONSOLE_HAS_METHOD (stream, clear_to_window_end);
295 CONSOLE_HAS_METHOD (stream, clear_region);
296 CONSOLE_HAS_METHOD (stream, clear_frame);
297 CONSOLE_HAS_METHOD (stream, output_begin);
298 CONSOLE_HAS_METHOD (stream, output_end);
299 CONSOLE_HAS_METHOD (stream, flash);
300 CONSOLE_HAS_METHOD (stream, ring_bell);
301 }
302
303 void
304 vars_of_console_stream (void)
305 {
306 DEFVAR_LISP ("terminal-console", &Vterminal_console /*
307 The initial console-object, which represent's Emacs's stdout.
308 */ );
309 Vterminal_console = Qnil;
310
311 DEFVAR_LISP ("terminal-device", &Vterminal_device /*
312 The initial device-object, which represent's Emacs's stdout.
313 */ );
314 Vterminal_device = Qnil;
315
316 DEFVAR_LISP ("terminal-frame", &Vterminal_frame /*
317 The initial frame-object, which represents Emacs's stdout.
318 */ );
319 Vterminal_frame = Qnil;
320 }
321
322 void
323 init_console_stream (void)
324 {
325 /* This function can GC */
326 if (!initialized)
327 {
328 Vterminal_device = Fmake_device (Qstream, Qnil, Qnil);
329 Vterminal_console = Fdevice_console (Vterminal_device);
330 Vterminal_frame = Fmake_frame (Qnil, Vterminal_device);
331 minibuf_window = XFRAME (Vterminal_frame)->minibuffer_window;
332 }
333 else if (noninteractive)
334 event_stream_select_console (XCONSOLE (Vterminal_console));
335 }