Mercurial > hg > xemacs-beta
annotate src/device-tty.c @ 5022:cfe36e196dc7
long comment in syswindows.h about build constants
-------------------- ChangeLog entries follow: --------------------
src/ChangeLog addition:
2010-02-09 Ben Wing <ben@xemacs.org>
* syswindows.h:
Create a long comment about build flags such as WIN32_NATIVE,
HAVE_MS_WINDOWS.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Tue, 09 Feb 2010 19:07:36 -0600 |
| parents | 16112448d484 |
| children | d0c14ea98592 b5df3737028a |
| rev | line source |
|---|---|
| 428 | 1 /* TTY device 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. | |
| 5 | |
| 6 This file is part of XEmacs. | |
| 7 | |
| 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 | |
| 11 later version. | |
| 12 | |
| 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 | |
| 16 for more details. | |
| 17 | |
| 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. */ | |
| 22 | |
| 23 /* Synched up with: Not in FSF. */ | |
| 24 | |
| 25 /* Authors: Ben Wing and Chuck Thompson. */ | |
| 26 | |
| 27 #include <config.h> | |
| 28 #include "lisp.h" | |
| 29 | |
| 872 | 30 #include "device-impl.h" |
| 428 | 31 #include "events.h" |
| 32 #include "faces.h" | |
| 33 #include "frame.h" | |
| 34 #include "lstream.h" | |
| 35 #include "redisplay.h" | |
| 36 #include "sysdep.h" | |
| 37 | |
| 872 | 38 #include "console-tty-impl.h" |
| 800 | 39 #include "console-stream.h" |
| 40 | |
| 558 | 41 #include "sysfile.h" |
| 428 | 42 #include "syssignal.h" /* for SIGWINCH */ |
| 43 | |
|
4477
e34711681f30
Don't determine whether to call general device-type code at startup,
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
44 Lisp_Object Qmake_device_early_tty_entry_point; |
| 428 | 45 |
| 46 | |
| 3092 | 47 #ifdef NEW_GC |
| 48 static const struct memory_description tty_device_data_description_1 [] = { | |
| 49 { XD_END } | |
| 50 }; | |
| 51 | |
| 52 DEFINE_LRECORD_IMPLEMENTATION ("tty-device", tty_device, | |
| 53 1, /*dumpable-flag*/ | |
| 54 0, 0, 0, 0, 0, | |
| 55 tty_device_data_description_1, | |
| 56 Lisp_Tty_Device); | |
| 57 #endif /* NEW_GC */ | |
| 58 | |
| 428 | 59 static void |
| 60 allocate_tty_device_struct (struct device *d) | |
| 61 { | |
| 3092 | 62 #ifdef NEW_GC |
| 63 d->device_data = alloc_lrecord_type (struct tty_device, &lrecord_tty_device); | |
| 64 #else /* not NEW_GC */ | |
| 428 | 65 d->device_data = xnew_and_zero (struct tty_device); |
| 3092 | 66 #endif /* not NEW_GC */ |
| 428 | 67 } |
| 68 | |
| 69 static void | |
| 2286 | 70 tty_init_device (struct device *d, Lisp_Object UNUSED (props)) |
| 428 | 71 { |
| 72 struct console *con = XCONSOLE (DEVICE_CONSOLE (d)); | |
| 73 Lisp_Object terminal_type = CONSOLE_TTY_DATA (con)->terminal_type; | |
| 74 | |
|
4477
e34711681f30
Don't determine whether to call general device-type code at startup,
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
75 /* Run part of the elisp side of the TTY device initialization. |
|
e34711681f30
Don't determine whether to call general device-type code at startup,
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
76 The post-init is run in the tty_finish_init_device() method. */ |
|
e34711681f30
Don't determine whether to call general device-type code at startup,
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
77 call0 (Qmake_device_early_tty_entry_point); |
|
e34711681f30
Don't determine whether to call general device-type code at startup,
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
78 |
| 428 | 79 DEVICE_INFD (d) = CONSOLE_TTY_DATA (con)->infd; |
| 80 DEVICE_OUTFD (d) = CONSOLE_TTY_DATA (con)->outfd; | |
| 81 | |
| 82 allocate_tty_device_struct (d); | |
| 83 init_baud_rate (d); | |
| 84 | |
| 85 switch (init_tty_for_redisplay (d, (char *) XSTRING_DATA (terminal_type))) | |
| 86 { | |
| 87 #if 0 | |
| 88 case TTY_UNABLE_OPEN_DATABASE: | |
| 89 suppress_early_error_handler_backtrace = 1; | |
| 563 | 90 signal_error (Qio_error, "Can't access terminal information database", Qunbound); |
| 428 | 91 break; |
| 92 #endif | |
| 93 case TTY_TYPE_UNDEFINED: | |
| 94 suppress_early_error_handler_backtrace = 1; | |
| 563 | 95 signal_error (Qio_error, "Terminal type undefined (or can't access database?)", |
| 96 terminal_type); | |
| 428 | 97 break; |
| 98 case TTY_TYPE_INSUFFICIENT: | |
| 99 suppress_early_error_handler_backtrace = 1; | |
| 563 | 100 signal_error (Qio_error, "Terminal type not powerful enough to run Emacs", |
| 101 terminal_type); | |
| 428 | 102 break; |
| 103 case TTY_SIZE_UNSPECIFIED: | |
| 104 suppress_early_error_handler_backtrace = 1; | |
| 563 | 105 signal_error (Qio_error, "Can't determine window size of terminal", Qunbound); |
| 428 | 106 break; |
| 107 case TTY_INIT_SUCCESS: | |
| 108 break; | |
| 109 default: | |
| 2500 | 110 ABORT (); |
| 428 | 111 } |
| 112 | |
| 113 init_one_device (d); | |
| 114 } | |
| 115 | |
| 3092 | 116 #ifndef NEW_GC |
| 428 | 117 static void |
| 118 free_tty_device_struct (struct device *d) | |
| 119 { | |
| 1726 | 120 if (d->device_data) |
|
4976
16112448d484
Rename xfree(FOO, TYPE) -> xfree(FOO)
Ben Wing <ben@xemacs.org>
parents:
4477
diff
changeset
|
121 xfree (d->device_data); |
| 428 | 122 } |
| 123 | |
| 124 static void | |
| 125 tty_delete_device (struct device *d) | |
| 126 { | |
| 127 free_tty_device_struct (d); | |
| 128 } | |
| 3092 | 129 #endif /* not NEW_GC */ |
| 428 | 130 |
| 131 #ifdef SIGWINCH | |
| 132 | |
| 133 static SIGTYPE | |
| 2286 | 134 tty_device_size_change_signal (int UNUSED (signo)) |
| 428 | 135 { |
| 136 int old_errno = errno; | |
| 137 asynch_device_change_pending++; | |
| 138 #ifdef HAVE_UNIXOID_EVENT_LOOP | |
| 139 signal_fake_event (); | |
| 140 #endif | |
| 141 EMACS_REESTABLISH_SIGNAL (SIGWINCH, tty_device_size_change_signal); | |
| 142 errno = old_errno; | |
| 143 SIGRETURN; | |
| 144 } | |
| 145 | |
| 146 /* frame_change_signal does nothing but set a flag that it was called. | |
| 147 When redisplay is called, it will notice that the flag is set and | |
| 148 call handle_pending_device_size_change to do the actual work. */ | |
| 149 static void | |
| 150 tty_asynch_device_change (void) | |
| 151 { | |
| 152 Lisp_Object devcons, concons; | |
| 153 | |
| 154 DEVICE_LOOP_NO_BREAK (devcons, concons) | |
| 155 { | |
| 156 int width, height; | |
| 157 Lisp_Object tail; | |
| 158 struct device *d = XDEVICE (XCAR (devcons)); | |
| 159 struct console *con = XCONSOLE (DEVICE_CONSOLE (d)); | |
| 160 | |
| 161 if (!DEVICE_TTY_P (d)) | |
| 162 continue; | |
| 163 | |
| 164 get_tty_device_size (d, &width, &height); | |
| 165 if (width > 0 && height > 0 | |
| 166 && (CONSOLE_TTY_DATA (con)->width != width | |
| 167 || CONSOLE_TTY_DATA (con)->height != height)) | |
| 168 { | |
| 169 CONSOLE_TTY_DATA (con)->width = width; | |
| 170 CONSOLE_TTY_DATA (con)->height = height; | |
| 171 | |
| 172 for (tail = DEVICE_FRAME_LIST (d); | |
| 173 !NILP (tail); | |
| 174 tail = XCDR (tail)) | |
| 175 { | |
| 176 struct frame *f = XFRAME (XCAR (tail)); | |
| 177 | |
| 178 /* We know the frame is tty because we made sure that the | |
| 179 device is tty. */ | |
| 180 change_frame_size (f, height, width, 1); | |
| 181 } | |
| 182 } | |
| 183 } | |
| 184 } | |
| 185 | |
| 186 #endif /* SIGWINCH */ | |
| 187 | |
| 188 static Lisp_Object | |
| 189 tty_device_system_metrics (struct device *d, | |
| 190 enum device_metrics m) | |
| 191 { | |
| 192 struct console *con = XCONSOLE (DEVICE_CONSOLE (d)); | |
| 193 switch (m) | |
| 194 { | |
| 195 case DM_size_device: | |
| 196 return Fcons (make_int (CONSOLE_TTY_DATA (con)->width), | |
| 197 make_int (CONSOLE_TTY_DATA (con)->height)); | |
| 198 default: /* No such device metric property for TTY devices */ | |
| 199 return Qunbound; | |
| 200 } | |
| 201 } | |
| 202 | |
| 203 /************************************************************************/ | |
| 204 /* initialization */ | |
| 205 /************************************************************************/ | |
| 206 | |
| 207 void | |
| 208 syms_of_device_tty (void) | |
| 209 { | |
| 3092 | 210 #ifdef NEW_GC |
| 211 INIT_LRECORD_IMPLEMENTATION (tty_device); | |
| 212 #endif /* NEW_GC */ | |
| 213 | |
|
4477
e34711681f30
Don't determine whether to call general device-type code at startup,
Aidan Kehoe <kehoea@parhasard.net>
parents:
3092
diff
changeset
|
214 DEFSYMBOL (Qmake_device_early_tty_entry_point); |
| 428 | 215 } |
| 216 | |
| 217 void | |
| 218 console_type_create_device_tty (void) | |
| 219 { | |
| 220 /* device methods */ | |
| 221 CONSOLE_HAS_METHOD (tty, init_device); | |
| 3092 | 222 #ifndef NEW_GC |
| 428 | 223 CONSOLE_HAS_METHOD (tty, delete_device); |
| 3092 | 224 #endif /* not NEW_GC */ |
| 428 | 225 #ifdef SIGWINCH |
| 226 CONSOLE_HAS_METHOD (tty, asynch_device_change); | |
| 227 #endif /* SIGWINCH */ | |
| 228 CONSOLE_HAS_METHOD (tty, device_system_metrics); | |
| 229 } | |
| 230 | |
| 231 void | |
| 232 init_device_tty (void) | |
| 233 { | |
| 234 #ifdef SIGWINCH | |
| 235 if (initialized && !noninteractive) | |
| 613 | 236 EMACS_SIGNAL (SIGWINCH, tty_device_size_change_signal); |
| 428 | 237 #endif /* SIGWINCH */ |
| 238 } |