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0
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1 /* TTY console functions.
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2 Copyright (C) 1994, 1995 Board of Trustees, University of Illinois.
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3 Copyright (C) 1994, 1995 Free Software Foundation, Inc.
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4 Copyright (C) 1996 Ben Wing.
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5
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6 This file is part of XEmacs.
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7
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8 XEmacs is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 2, or (at your option) any
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11 later version.
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12
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13 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with XEmacs; see the file COPYING. If not, write to
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20 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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21 Boston, MA 02111-1307, USA. */
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22
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23 /* Synched up with: Not in FSF. */
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24
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25 /* Authors: Ben Wing and Chuck Thompson. */
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26
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27 #include <config.h>
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28 #include "lisp.h"
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29
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30 #include "console-tty.h"
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31 #include "console-stream.h"
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32 #include "faces.h"
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33 #include "frame.h"
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34 #include "lstream.h"
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420
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35 #include "glyphs.h"
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0
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36 #include "sysdep.h"
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272
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37 #include "sysfile.h"
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259
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38 #ifdef FILE_CODING
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39 #include "file-coding.h"
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0
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40 #endif
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412
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41 #ifdef HAVE_GPM
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42 #include "gpmevent.h"
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43 #endif
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0
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44
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45 DEFINE_CONSOLE_TYPE (tty);
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420
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46 DECLARE_IMAGE_INSTANTIATOR_FORMAT (nothing);
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47 DECLARE_IMAGE_INSTANTIATOR_FORMAT (string);
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48 DECLARE_IMAGE_INSTANTIATOR_FORMAT (formatted_string);
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49 DECLARE_IMAGE_INSTANTIATOR_FORMAT (inherit);
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0
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50
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51 Lisp_Object Qterminal_type;
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108
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52 Lisp_Object Qcontrolling_process;
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0
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53
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54
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55 static void
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56 allocate_tty_console_struct (struct console *con)
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57 {
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185
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58 /* zero out all slots except the lisp ones ... */
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272
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59 CONSOLE_TTY_DATA (con) = xnew_and_zero (struct tty_console);
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0
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60 CONSOLE_TTY_DATA (con)->terminal_type = Qnil;
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61 CONSOLE_TTY_DATA (con)->instream = Qnil;
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62 CONSOLE_TTY_DATA (con)->outstream = Qnil;
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63 }
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64
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65 static void
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66 tty_init_console (struct console *con, Lisp_Object props)
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67 {
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108
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68 Lisp_Object tty = CONSOLE_CONNECTION (con);
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272
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69 Lisp_Object terminal_type = Qnil;
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70 Lisp_Object controlling_process = Qnil;
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71 struct tty_console *tty_con;
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108
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72 struct gcpro gcpro1, gcpro2;
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0
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73
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108
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74 GCPRO2 (terminal_type, controlling_process);
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0
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75
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76 terminal_type = Fplist_get (props, Qterminal_type, Qnil);
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272
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77 controlling_process = Fplist_get (props, Qcontrolling_process, Qnil);
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185
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78
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0
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79 /* Determine the terminal type */
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80
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81 if (!NILP (terminal_type))
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82 CHECK_STRING (terminal_type);
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83 else
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84 {
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272
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85 char *temp_type = getenv ("TERM");
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0
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86
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87 if (!temp_type)
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88 {
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89 error ("Cannot determine terminal type");
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90 }
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91 else
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92 terminal_type = build_string (temp_type);
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93 }
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94
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108
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95 /* Determine the controlling process */
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96 if (!NILP (controlling_process))
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97 CHECK_INT (controlling_process);
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98
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0
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99 /* Open the specified console */
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100
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101 allocate_tty_console_struct (con);
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272
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102 tty_con = CONSOLE_TTY_DATA (con);
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103
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195
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104 if (internal_equal (tty, Vstdio_str, 0))
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0
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105 {
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272
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106 tty_con->infd = fileno (stdin);
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107 tty_con->outfd = fileno (stdout);
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108 tty_con->is_stdio = 1;
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0
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109 }
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110 else
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111 {
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272
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112 tty_con->infd = tty_con->outfd =
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113 open ((char *) XSTRING_DATA (tty), O_RDWR);
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114 if (tty_con->infd < 0)
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16
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115 error ("Unable to open tty %s", XSTRING_DATA (tty));
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272
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116 tty_con->is_stdio = 0;
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0
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117 }
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185
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118
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272
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119 tty_con->instream = make_filedesc_input_stream (tty_con->infd, 0, -1, 0);
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120 tty_con->outstream = make_filedesc_output_stream (tty_con->outfd, 0, -1, 0);
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412
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121 #ifdef MULE
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272
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122 tty_con->instream =
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123 make_decoding_input_stream (XLSTREAM (tty_con->instream),
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412
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124 Fget_coding_system (Vkeyboard_coding_system));
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272
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125 Lstream_set_character_mode (XLSTREAM (tty_con->instream));
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126 tty_con->outstream =
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127 make_encoding_output_stream (XLSTREAM (tty_con->outstream),
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412
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128 Fget_coding_system (Vterminal_coding_system));
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129 #endif /* MULE */
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272
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130 tty_con->terminal_type = terminal_type;
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131 tty_con->controlling_process = controlling_process;
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153
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132
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412
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133 #ifdef HAVE_GPM
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134 connect_to_gpm (con);
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135 #endif
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136
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0
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137 if (NILP (CONSOLE_NAME (con)))
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138 CONSOLE_NAME (con) = Ffile_name_nondirectory (tty);
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139 {
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140 int tty_pg;
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141 int controlling_tty_pg;
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142 int cfd;
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143
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144 /* OK, the only sure-fire way I can think of to determine
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145 whether a particular TTY is our controlling TTY is to check
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146 if it has the same foreground process group as our controlling
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147 TTY. This is OK because a process group can never simultaneously
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148 be the foreground process group of two TTY's (in that case it
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149 would have two controlling TTY's, which is not allowed). */
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150
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272
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151 EMACS_GET_TTY_PROCESS_GROUP (tty_con->infd, &tty_pg);
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0
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152 cfd = open ("/dev/tty", O_RDWR, 0);
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153 EMACS_GET_TTY_PROCESS_GROUP (cfd, &controlling_tty_pg);
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154 close (cfd);
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155 if (tty_pg == controlling_tty_pg)
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156 {
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272
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157 tty_con->controlling_terminal = 1;
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0
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158 XSETCONSOLE (Vcontrolling_terminal, con);
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159 munge_tty_process_group ();
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160 }
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161 else
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272
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162 tty_con->controlling_terminal = 0;
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0
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163 }
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164
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165 UNGCPRO;
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166 }
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167
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168 static void
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424
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169 tty_mark_console (struct console *con)
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0
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170 {
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272
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171 struct tty_console *tty_con = CONSOLE_TTY_DATA (con);
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424
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172 mark_object (tty_con->terminal_type);
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173 mark_object (tty_con->instream);
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174 mark_object (tty_con->outstream);
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0
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175 }
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176
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177 static int
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178 tty_initially_selected_for_input (struct console *con)
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179 {
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180 return 1;
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181 }
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182
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183 static void
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184 free_tty_console_struct (struct console *con)
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185 {
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272
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186 struct tty_console *tty_con = CONSOLE_TTY_DATA (con);
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187 if (tty_con)
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267
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188 {
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272
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189 if (tty_con->term_entry_buffer) /* allocated in term_init () */
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190 {
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191 xfree (tty_con->term_entry_buffer);
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192 tty_con->term_entry_buffer = NULL;
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193 }
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194 xfree (tty_con);
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195 CONSOLE_TTY_DATA (con) = NULL;
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267
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196 }
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0
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197 }
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198
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199 static void
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200 tty_delete_console (struct console *con)
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201 {
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202 Lstream_close (XLSTREAM (CONSOLE_TTY_DATA (con)->instream));
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203 Lstream_close (XLSTREAM (CONSOLE_TTY_DATA (con)->outstream));
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204 if (!CONSOLE_TTY_DATA (con)->is_stdio)
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205 close (CONSOLE_TTY_DATA (con)->infd);
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206 if (CONSOLE_TTY_DATA (con)->controlling_terminal)
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207 {
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208 Vcontrolling_terminal = Qnil;
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209 unmunge_tty_process_group ();
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210 }
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211 free_tty_console_struct (con);
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212 }
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213
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214
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215 static struct console *
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216 decode_tty_console (Lisp_Object console)
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217 {
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218 XSETCONSOLE (console, decode_console (console));
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219 CHECK_TTY_CONSOLE (console);
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220 return XCONSOLE (console);
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221 }
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222
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280
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223 DEFUN ("console-tty-terminal-type", Fconsole_tty_terminal_type,
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224 0, 1, 0, /*
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0
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225 Return the terminal type of TTY console CONSOLE.
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20
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226 */
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227 (console))
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0
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228 {
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229 return CONSOLE_TTY_DATA (decode_tty_console (console))->terminal_type;
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230 }
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231
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280
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232 DEFUN ("console-tty-controlling-process", Fconsole_tty_controlling_process,
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233 0, 1, 0, /*
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272
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234 Return the controlling process of tty console CONSOLE.
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108
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235 */
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236 (console))
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237 {
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238 return CONSOLE_TTY_DATA (decode_tty_console (console))->controlling_process;
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239 }
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240
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384
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241 #ifdef FILE_CODING
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255
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242
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280
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243 DEFUN ("console-tty-input-coding-system", Fconsole_tty_input_coding_system,
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244 0, 1, 0, /*
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272
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245 Return the input coding system of tty console CONSOLE.
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255
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246 */
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247 (console))
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248 {
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272
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249 return decoding_stream_coding_system
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250 (XLSTREAM (CONSOLE_TTY_DATA (decode_tty_console (console))->instream));
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255
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251 }
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252
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280
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253 DEFUN ("set-console-tty-input-coding-system", Fset_console_tty_input_coding_system,
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254 0, 2, 0, /*
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272
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255 Set the input coding system of tty console CONSOLE to CODESYS.
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255
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256 CONSOLE defaults to the selected console.
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257 CODESYS defaults to the value of `keyboard-coding-system'.
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258 */
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259 (console, codesys))
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260 {
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272
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261 set_decoding_stream_coding_system
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262 (XLSTREAM (CONSOLE_TTY_DATA (decode_tty_console (console))->instream),
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412
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263 Fget_coding_system (NILP (codesys) ? Vkeyboard_coding_system : codesys));
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255
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264 return Qnil;
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265 }
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266
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280
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267 DEFUN ("console-tty-output-coding-system", Fconsole_tty_output_coding_system,
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268 0, 1, 0, /*
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255
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269 Return TTY CONSOLE's output coding system.
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270 */
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271 (console))
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272 {
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272
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273 return encoding_stream_coding_system
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274 (XLSTREAM (CONSOLE_TTY_DATA (decode_tty_console (console))->outstream));
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255
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275 }
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276
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280
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277 DEFUN ("set-console-tty-output-coding-system", Fset_console_tty_output_coding_system,
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278 0, 2, 0, /*
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255
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279 Set the coding system of tty output of console CONSOLE to CODESYS.
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280 CONSOLE defaults to the selected console.
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281 CODESYS defaults to the value of `terminal-coding-system'.
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282 */
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283 (console, codesys))
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284 {
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272
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285 set_encoding_stream_coding_system
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286 (XLSTREAM (CONSOLE_TTY_DATA (decode_tty_console (console))->outstream),
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412
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287 Fget_coding_system (NILP (codesys) ? Vterminal_coding_system : codesys));
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255
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288 return Qnil;
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289 }
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290
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412
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291 /* ### Move this function to lisp */
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280
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292 DEFUN ("set-console-tty-coding-system", Fset_console_tty_coding_system,
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293 0, 2, 0, /*
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272
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294 Set the input and output coding systems of tty console CONSOLE to CODESYS.
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295 CONSOLE defaults to the selected console.
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296 If CODESYS is nil, the values of `keyboard-coding-system' and
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297 `terminal-coding-system' will be used for the input and
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298 output coding systems of CONSOLE.
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299 */
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300 (console, codesys))
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301 {
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302 Fset_console_tty_input_coding_system (console, codesys);
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303 Fset_console_tty_output_coding_system (console, codesys);
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304 return Qnil;
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305 }
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384
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306 #endif /* FILE_CODING */
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255
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307
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308
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0
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309 Lisp_Object
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310 tty_semi_canonicalize_console_connection (Lisp_Object connection,
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311 Error_behavior errb)
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312 {
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78
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313 return stream_semi_canonicalize_console_connection (connection, errb);
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0
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314 }
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315
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316 Lisp_Object
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317 tty_canonicalize_console_connection (Lisp_Object connection,
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318 Error_behavior errb)
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319 {
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78
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320 return stream_canonicalize_console_connection (connection, errb);
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0
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321 }
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322
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323 Lisp_Object
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324 tty_semi_canonicalize_device_connection (Lisp_Object connection,
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325 Error_behavior errb)
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326 {
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78
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327 return stream_semi_canonicalize_console_connection (connection, errb);
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0
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328 }
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329
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330 Lisp_Object
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331 tty_canonicalize_device_connection (Lisp_Object connection,
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332 Error_behavior errb)
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333 {
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78
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334 return stream_canonicalize_console_connection (connection, errb);
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0
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335 }
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336
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337
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338 /************************************************************************/
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339 /* initialization */
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340 /************************************************************************/
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341
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342 void
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343 syms_of_console_tty (void)
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344 {
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20
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345 DEFSUBR (Fconsole_tty_terminal_type);
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108
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346 DEFSUBR (Fconsole_tty_controlling_process);
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0
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347 defsymbol (&Qterminal_type, "terminal-type");
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108
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348 defsymbol (&Qcontrolling_process, "controlling-process");
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384
|
349 #ifdef FILE_CODING
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255
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350 DEFSUBR (Fconsole_tty_output_coding_system);
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351 DEFSUBR (Fset_console_tty_output_coding_system);
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352 DEFSUBR (Fconsole_tty_input_coding_system);
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353 DEFSUBR (Fset_console_tty_input_coding_system);
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354 DEFSUBR (Fset_console_tty_coding_system);
|
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384
|
355 #endif /* FILE_CODING */
|
|
0
|
356 }
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|
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357
|
|
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358 void
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|
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359 console_type_create_tty (void)
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|
|
360 {
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361 INITIALIZE_CONSOLE_TYPE (tty, "tty", "console-tty-p");
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|
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362
|
|
|
363 /* console methods */
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|
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364 CONSOLE_HAS_METHOD (tty, init_console);
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365 CONSOLE_HAS_METHOD (tty, mark_console);
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366 CONSOLE_HAS_METHOD (tty, initially_selected_for_input);
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367 CONSOLE_HAS_METHOD (tty, delete_console);
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368 CONSOLE_HAS_METHOD (tty, canonicalize_console_connection);
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369 CONSOLE_HAS_METHOD (tty, canonicalize_device_connection);
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370 CONSOLE_HAS_METHOD (tty, semi_canonicalize_console_connection);
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371 CONSOLE_HAS_METHOD (tty, semi_canonicalize_device_connection);
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|
|
372 }
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|
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373
|
|
|
374 void
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|
424
|
375 reinit_console_type_create_tty (void)
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|
|
376 {
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|
|
377 REINITIALIZE_CONSOLE_TYPE (tty);
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|
|
378 }
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|
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379
|
|
|
380 void
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|
420
|
381 image_instantiator_format_create_glyphs_tty (void)
|
|
|
382 {
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|
|
383 IIFORMAT_VALID_CONSOLE (tty, nothing);
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|
|
384 IIFORMAT_VALID_CONSOLE (tty, string);
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|
|
385 IIFORMAT_VALID_CONSOLE (tty, formatted_string);
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386 IIFORMAT_VALID_CONSOLE (tty, inherit);
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387 }
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388
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389 void
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0
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390 vars_of_console_tty (void)
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391 {
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392 Fprovide (Qtty);
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393 }
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