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1 /* Stream device functions.
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2 Copyright (C) 1995 Free Software Foundation, Inc.
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3 Copyright (C) 1996 Ben Wing.
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4
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5 This file is part of XEmacs.
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6
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7 XEmacs is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with XEmacs; see the file COPYING. If not, write to
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19 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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20 Boston, MA 02111-1307, USA. */
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21
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22 /* Synched up with: Not in FSF. */
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23
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24 /* This file has been Mule-ized. */
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25
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26 /* Written by Ben Wing. */
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27
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28 #include <config.h>
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29 #include "lisp.h"
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30
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31 #include "console-stream.h"
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32 #include "console-tty.h"
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33 #include "events.h"
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34 #include "frame.h"
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35 #include "redisplay.h"
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36 #include "sysdep.h"
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37 #include "window.h"
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38
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39 DEFINE_CONSOLE_TYPE (stream);
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40
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41 Lisp_Object Vterminal_console;
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42 Lisp_Object Vterminal_device;
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43 Lisp_Object Vterminal_frame;
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44
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78
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45 Lisp_Object Vstdio_str;
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0
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46
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47 static void
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48 allocate_stream_console_struct (struct console *con)
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49 {
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50 con->console_data =
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51 (struct stream_console *) xmalloc (sizeof (struct stream_console));
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52
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53 /* zero out all slots. */
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54 memset (con->console_data, 0, sizeof (struct stream_console));
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55 }
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56
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57 static void
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58 stream_init_console (struct console *con, Lisp_Object params)
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59 {
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60 Lisp_Object tty = CONSOLE_CONNECTION (con);
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61 FILE *infd, *outfd, *errfd;
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62
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63 /* Open the specified console */
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64
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65 if (NILP (tty) || !NILP (Fequal (tty, Vstdio_str)))
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66 {
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67 infd = stdin;
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68 outfd = stdout;
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69 errfd = stderr;
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70 }
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71 else
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72 {
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73 CHECK_STRING (tty);
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74 infd = outfd = errfd =
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16
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75 fopen ((char *) XSTRING_DATA (tty), "r+");
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0
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76 if (!infd)
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16
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77 error ("Unable to open tty %s", XSTRING_DATA (tty));
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0
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78 }
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79
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80 allocate_stream_console_struct (con);
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81 CONSOLE_STREAM_DATA (con)->infd = infd;
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82 CONSOLE_STREAM_DATA (con)->outfd = outfd;
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83 CONSOLE_STREAM_DATA (con)->errfd = errfd;
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84 }
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85
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86 static void
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87 stream_init_device (struct device *d, Lisp_Object params)
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88 {
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89 struct console *con = XCONSOLE (DEVICE_CONSOLE (d));
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90
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91 DEVICE_INFD (d) = fileno (CONSOLE_STREAM_DATA (con)->infd);
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92 DEVICE_OUTFD (d) = fileno (CONSOLE_STREAM_DATA (con)->outfd);
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93 init_baud_rate (d);
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94 init_one_device (d);
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95 }
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96
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97 static int
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98 stream_initially_selected_for_input (struct console *con)
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99 {
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100 return noninteractive && initialized;
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101 }
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102
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103 static void
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104 free_stream_console_struct (struct console *con)
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105 {
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106 struct stream_console *tcon = (struct stream_console *) con->console_data;
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107 if (tcon)
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108 xfree (tcon);
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109 }
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110
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111 extern int stdout_needs_newline;
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112
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113 static void
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114 stream_delete_console (struct console *con)
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115 {
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116 if (/* CONSOLE_STREAM_DATA (con)->needs_newline */
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117 stdout_needs_newline) /* #### clean this up */
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118 {
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119 fputc ('\n', CONSOLE_STREAM_DATA (con)->outfd);
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120 fflush (CONSOLE_STREAM_DATA (con)->outfd);
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121 }
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122 if (CONSOLE_STREAM_DATA (con)->infd != stdin)
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123 fclose (CONSOLE_STREAM_DATA (con)->infd);
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124 free_stream_console_struct (con);
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125 }
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126
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127 Lisp_Object
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0
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128 stream_semi_canonicalize_console_connection (Lisp_Object connection,
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129 Error_behavior errb)
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130 {
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78
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131 if (NILP (connection))
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132 return Vstdio_str;
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133
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134 return connection;
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0
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135 }
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136
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137 Lisp_Object
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0
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138 stream_canonicalize_console_connection (Lisp_Object connection,
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139 Error_behavior errb)
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140 {
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141 if (NILP (connection) || !NILP (Fequal (connection, Vstdio_str)))
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142 return Vstdio_str;
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143
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144 if (!ERRB_EQ (errb, ERROR_ME))
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145 {
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146 if (!STRINGP (connection))
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147 return Qunbound;
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148 }
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149 else
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150 CHECK_STRING (connection);
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151
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152 return Ffile_truename (connection, Qnil);
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0
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153 }
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154
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155 Lisp_Object
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156 stream_semi_canonicalize_device_connection (Lisp_Object connection,
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157 Error_behavior errb)
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158 {
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159 return stream_semi_canonicalize_console_connection (connection, errb);
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0
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160 }
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161
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162 Lisp_Object
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163 stream_canonicalize_device_connection (Lisp_Object connection,
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164 Error_behavior errb)
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165 {
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166 return stream_canonicalize_console_connection (connection, errb);
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0
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167 }
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168
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169
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170 static void
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171 stream_init_frame_1 (struct frame *f, Lisp_Object props)
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172 {
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173 struct device *d = XDEVICE (FRAME_DEVICE (f));
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174 if (!NILP (DEVICE_FRAME_LIST (d)))
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175 error ("Only one frame allowed on stream devices");
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176
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177 f->name = build_string ("stream");
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178 f->height = 80;
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179 f->width = 24;
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180 f->visible = 0; /* so redisplay doesn't try to do anything */
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181 }
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182
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183
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184 static int
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185 stream_text_width (struct face_cachel *cachel, CONST Emchar *str,
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186 Charcount len)
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187 {
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188 return len;
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189 }
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190
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191 static int
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192 stream_left_margin_width (struct window *w)
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193 {
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194 return 0;
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195 }
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196
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197 static int
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198 stream_right_margin_width (struct window *w)
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199 {
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200 return 0;
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201 }
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202
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203 static int
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204 stream_divider_width (void)
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205 {
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206 return 1;
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207 }
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208
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209 static int
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210 stream_divider_height (void)
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211 {
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212 return 1;
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213 }
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214
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215 static int
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216 stream_eol_cursor_width (void)
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217 {
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218 return 1;
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219 }
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220
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221 static void
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222 stream_output_begin (struct device *d)
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223 {
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224 }
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225
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226 static void
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227 stream_output_end (struct device *d)
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228 {
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229 }
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230
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231 static void
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232 stream_output_display_block (struct window *w, struct display_line *dl,
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233 int block, int start, int end,
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234 int start_pixpos, int cursor_start,
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235 int cursor_width, int cursor_height)
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236 {
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237 }
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238
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239 static void
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240 stream_output_vertical_divider (struct window *w, int clear)
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241 {
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242 }
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243
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244 static void
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245 stream_clear_to_window_end (struct window *w, int ypos1, int ypos2)
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246 {
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247 }
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248
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249 static void
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250 stream_clear_region (Lisp_Object locale, face_index findex, int x, int y,
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251 int width, int height)
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252 {
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253 }
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254
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255 static void
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256 stream_clear_frame (struct frame *f)
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257 {
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258 }
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259
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260 static int
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261 stream_flash (struct device *d)
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262 {
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263 return 0; /* sorry can't do it */
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264 }
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265
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266 static void
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267 stream_ring_bell (struct device *d, int volume, int pitch, int duration)
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268 {
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269 struct console *c = XCONSOLE (DEVICE_CONSOLE (d));
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270 fputc (07, CONSOLE_STREAM_DATA (c)->outfd);
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271 fflush (CONSOLE_STREAM_DATA (c)->outfd);
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272 }
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273
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274
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275 /************************************************************************/
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276 /* initialization */
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277 /************************************************************************/
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278
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279 void
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280 console_type_create_stream (void)
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281 {
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282 INITIALIZE_CONSOLE_TYPE (stream, "stream", "console-stream-p");
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283
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284 /* console methods */
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285 CONSOLE_HAS_METHOD (stream, init_console);
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286 CONSOLE_HAS_METHOD (stream, initially_selected_for_input);
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287 CONSOLE_HAS_METHOD (stream, delete_console);
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288 CONSOLE_HAS_METHOD (stream, canonicalize_console_connection);
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289 CONSOLE_HAS_METHOD (stream, canonicalize_device_connection);
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290 CONSOLE_HAS_METHOD (stream, semi_canonicalize_console_connection);
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291 CONSOLE_HAS_METHOD (stream, semi_canonicalize_device_connection);
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292
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293 /* device methods */
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294 CONSOLE_HAS_METHOD (stream, init_device);
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295
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296 /* frame methods */
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297 CONSOLE_HAS_METHOD (stream, init_frame_1);
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298
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299 /* redisplay methods */
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300 CONSOLE_HAS_METHOD (stream, left_margin_width);
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301 CONSOLE_HAS_METHOD (stream, right_margin_width);
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302 CONSOLE_HAS_METHOD (stream, text_width);
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303 CONSOLE_HAS_METHOD (stream, output_display_block);
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304 CONSOLE_HAS_METHOD (stream, output_vertical_divider);
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305 CONSOLE_HAS_METHOD (stream, divider_width);
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306 CONSOLE_HAS_METHOD (stream, divider_height);
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307 CONSOLE_HAS_METHOD (stream, eol_cursor_width);
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308 CONSOLE_HAS_METHOD (stream, clear_to_window_end);
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309 CONSOLE_HAS_METHOD (stream, clear_region);
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310 CONSOLE_HAS_METHOD (stream, clear_frame);
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311 CONSOLE_HAS_METHOD (stream, output_begin);
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312 CONSOLE_HAS_METHOD (stream, output_end);
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313 CONSOLE_HAS_METHOD (stream, flash);
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314 CONSOLE_HAS_METHOD (stream, ring_bell);
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315 }
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316
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317 void
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318 vars_of_console_stream (void)
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319 {
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320 DEFVAR_LISP ("terminal-console", &Vterminal_console /*
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321 The initial console-object, which represent's Emacs's stdout.
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322 */ );
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323 Vterminal_console = Qnil;
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324
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325 DEFVAR_LISP ("terminal-device", &Vterminal_device /*
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326 The initial device-object, which represent's Emacs's stdout.
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327 */ );
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328 Vterminal_device = Qnil;
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329
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330 DEFVAR_LISP ("terminal-frame", &Vterminal_frame /*
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331 The initial frame-object, which represents Emacs's stdout.
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332 */ );
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333 Vterminal_frame = Qnil;
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334
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335 /* Moved from console-tty.c */
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336 Vstdio_str = build_string ("stdio");
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337 staticpro (&Vstdio_str);
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0
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338 }
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339
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340 void
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341 init_console_stream (void)
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342 {
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343 /* This function can GC */
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344 if (!initialized)
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345 {
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346 Vterminal_device = Fmake_device (Qstream, Qnil, Qnil);
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347 Vterminal_console = Fdevice_console (Vterminal_device);
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348 Vterminal_frame = Fmake_frame (Qnil, Vterminal_device);
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349 minibuf_window = XFRAME (Vterminal_frame)->minibuffer_window;
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350 }
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351 else if (noninteractive)
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352 event_stream_select_console (XCONSOLE (Vterminal_console));
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353 }
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