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0
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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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45 extern Lisp_Object Vstdio_str; /* in console-tty.c */
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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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75 fopen ((char *) string_data (XSTRING (tty)), "r+");
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76 if (!infd)
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77 error ("Unable to open tty %s", string_data (XSTRING (tty)));
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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 static Lisp_Object
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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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131 return tty_semi_canonicalize_console_connection (connection, errb);
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132 }
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133
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134 static Lisp_Object
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135 stream_canonicalize_console_connection (Lisp_Object connection,
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136 Error_behavior errb)
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137 {
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138 return tty_canonicalize_console_connection (connection, errb);
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139 }
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140
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141 static Lisp_Object
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142 stream_semi_canonicalize_device_connection (Lisp_Object connection,
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143 Error_behavior errb)
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144 {
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145 return tty_semi_canonicalize_device_connection (connection, errb);
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146 }
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147
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148 static Lisp_Object
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149 stream_canonicalize_device_connection (Lisp_Object connection,
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150 Error_behavior errb)
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151 {
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152 return tty_canonicalize_device_connection (connection, errb);
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153 }
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154
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155
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156 static void
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157 stream_init_frame_1 (struct frame *f, Lisp_Object props)
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158 {
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159 struct device *d = XDEVICE (FRAME_DEVICE (f));
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160 if (!NILP (DEVICE_FRAME_LIST (d)))
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161 error ("Only one frame allowed on stream devices");
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162
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163 f->name = build_string ("stream");
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164 f->height = 80;
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165 f->width = 24;
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166 f->visible = 0; /* so redisplay doesn't try to do anything */
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167 }
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168
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169
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170 static int
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171 stream_text_width (struct face_cachel *cachel, CONST Emchar *str,
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172 Charcount len)
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173 {
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174 return len;
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175 }
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176
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177 static int
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178 stream_left_margin_width (struct window *w)
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179 {
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180 return 0;
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181 }
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182
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183 static int
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184 stream_right_margin_width (struct window *w)
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185 {
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186 return 0;
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187 }
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188
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189 static int
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190 stream_divider_width (void)
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191 {
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192 return 1;
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193 }
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194
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195 static int
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196 stream_divider_height (void)
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197 {
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198 return 1;
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199 }
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200
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201 static int
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202 stream_eol_cursor_width (void)
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203 {
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204 return 1;
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205 }
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206
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207 static void
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208 stream_output_begin (struct device *d)
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209 {
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210 }
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211
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212 static void
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213 stream_output_end (struct device *d)
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214 {
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215 }
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216
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217 static void
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218 stream_output_display_block (struct window *w, struct display_line *dl,
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219 int block, int start, int end,
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220 int start_pixpos, int cursor_start,
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221 int cursor_width, int cursor_height)
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222 {
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223 }
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224
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225 static void
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226 stream_output_vertical_divider (struct window *w, int clear)
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227 {
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228 }
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229
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230 static void
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231 stream_clear_to_window_end (struct window *w, int ypos1, int ypos2)
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232 {
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233 }
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234
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235 static void
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236 stream_clear_region (Lisp_Object locale, face_index findex, int x, int y,
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237 int width, int height)
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238 {
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239 }
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240
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241 static void
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242 stream_clear_frame (struct frame *f)
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243 {
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244 }
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245
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246 static int
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247 stream_flash (struct device *d)
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248 {
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249 return 0; /* sorry can't do it */
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250 }
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251
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252 static void
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253 stream_ring_bell (struct device *d, int volume, int pitch, int duration)
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254 {
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255 struct console *c = XCONSOLE (DEVICE_CONSOLE (d));
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256 fputc (07, CONSOLE_STREAM_DATA (c)->outfd);
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257 fflush (CONSOLE_STREAM_DATA (c)->outfd);
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258 }
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259
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260
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261 /************************************************************************/
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262 /* initialization */
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263 /************************************************************************/
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264
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265 void
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266 console_type_create_stream (void)
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267 {
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268 INITIALIZE_CONSOLE_TYPE (stream, "stream", "console-stream-p");
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269
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270 /* console methods */
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271 CONSOLE_HAS_METHOD (stream, init_console);
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272 CONSOLE_HAS_METHOD (stream, initially_selected_for_input);
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273 CONSOLE_HAS_METHOD (stream, delete_console);
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274 CONSOLE_HAS_METHOD (stream, canonicalize_console_connection);
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275 CONSOLE_HAS_METHOD (stream, canonicalize_device_connection);
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276 CONSOLE_HAS_METHOD (stream, semi_canonicalize_console_connection);
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277 CONSOLE_HAS_METHOD (stream, semi_canonicalize_device_connection);
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278
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279 /* device methods */
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280 CONSOLE_HAS_METHOD (stream, init_device);
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281
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282 /* frame methods */
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283 CONSOLE_HAS_METHOD (stream, init_frame_1);
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284
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285 /* redisplay methods */
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286 CONSOLE_HAS_METHOD (stream, left_margin_width);
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287 CONSOLE_HAS_METHOD (stream, right_margin_width);
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288 CONSOLE_HAS_METHOD (stream, text_width);
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289 CONSOLE_HAS_METHOD (stream, output_display_block);
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290 CONSOLE_HAS_METHOD (stream, output_vertical_divider);
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291 CONSOLE_HAS_METHOD (stream, divider_width);
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292 CONSOLE_HAS_METHOD (stream, divider_height);
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293 CONSOLE_HAS_METHOD (stream, eol_cursor_width);
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294 CONSOLE_HAS_METHOD (stream, clear_to_window_end);
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295 CONSOLE_HAS_METHOD (stream, clear_region);
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296 CONSOLE_HAS_METHOD (stream, clear_frame);
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297 CONSOLE_HAS_METHOD (stream, output_begin);
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298 CONSOLE_HAS_METHOD (stream, output_end);
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299 CONSOLE_HAS_METHOD (stream, flash);
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300 CONSOLE_HAS_METHOD (stream, ring_bell);
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301 }
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302
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303 void
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304 vars_of_console_stream (void)
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305 {
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306 DEFVAR_LISP ("terminal-console", &Vterminal_console /*
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307 The initial console-object, which represent's Emacs's stdout.
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308 */ );
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309 Vterminal_console = Qnil;
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310
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311 DEFVAR_LISP ("terminal-device", &Vterminal_device /*
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312 The initial device-object, which represent's Emacs's stdout.
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313 */ );
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314 Vterminal_device = Qnil;
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315
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316 DEFVAR_LISP ("terminal-frame", &Vterminal_frame /*
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317 The initial frame-object, which represents Emacs's stdout.
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318 */ );
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319 Vterminal_frame = Qnil;
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320 }
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321
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322 void
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323 init_console_stream (void)
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324 {
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325 /* This function can GC */
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326 if (!initialized)
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327 {
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328 Vterminal_device = Fmake_device (Qstream, Qnil, Qnil);
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329 Vterminal_console = Fdevice_console (Vterminal_device);
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330 Vterminal_frame = Fmake_frame (Qnil, Vterminal_device);
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331 minibuf_window = XFRAME (Vterminal_frame)->minibuffer_window;
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332 }
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333 else if (noninteractive)
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334 event_stream_select_console (XCONSOLE (Vterminal_console));
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335 }
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