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440
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1 /* GPM (General purpose mouse) functions
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428
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2 Copyright (C) 1997 William M. Perry <wmperry@gnu.org>
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3 Copyright (C) 1999 Free Software Foundation, Inc.
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793
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4 Copyright (C) 2002 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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428
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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: William Perry */
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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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793
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29
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30 #include "commands.h"
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31 #include "console-tty.h"
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428
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32 #include "console.h"
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33 #include "device.h"
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34 #include "events.h"
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793
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35 #include "lstream.h"
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36 #include "process.h"
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428
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37 #include "sysdep.h"
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876
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38 #include "frame.h"
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39 #include "device-impl.h"
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40 #include "console-impl.h"
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41 #include "console-tty-impl.h"
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793
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42
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428
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43 #include "sysproc.h" /* for MAXDESC */
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44
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45 #ifdef HAVE_GPM
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46 #include "gpmevent.h"
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47 #include <gpm.h>
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48
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49 #define KG_SHIFT 0
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50 #define KG_CTRL 2
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51 #define KG_ALT 3
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52
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53 extern int gpm_tried;
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54 extern void *gpm_stack;
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55
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56 static int (*orig_event_pending_p) (int);
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440
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57 static void (*orig_next_event_cb) (Lisp_Event *);
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428
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58
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59 static Lisp_Object gpm_event_queue;
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60 static Lisp_Object gpm_event_queue_tail;
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61
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2720
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62 #ifdef MC_ALLOC
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63 static Lisp_Object MC_ALLOC_Freceive_gpm_event;
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64 #endif /* MC_ALLOC */
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65
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793
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66 struct __gpm_state
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67 {
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68 int gpm_tried;
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69 int gpm_flag;
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70 void *gpm_stack;
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428
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71 };
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72
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73 static struct __gpm_state gpm_state_information[MAXDESC];
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74
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75 static void
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76 store_gpm_state (int fd)
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77 {
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793
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78 gpm_state_information[fd].gpm_tried = gpm_tried;
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79 gpm_state_information[fd].gpm_flag = gpm_flag;
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80 gpm_state_information[fd].gpm_stack = gpm_stack;
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428
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81 }
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82
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83 static void
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84 restore_gpm_state (int fd)
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85 {
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793
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86 gpm_tried = gpm_state_information[fd].gpm_tried;
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87 gpm_flag = gpm_state_information[fd].gpm_flag;
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88 gpm_stack = gpm_state_information[fd].gpm_stack;
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89 gpm_consolefd = gpm_fd = fd;
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428
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90 }
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91
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92 static void
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93 clear_gpm_state (int fd)
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94 {
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793
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95 if (fd >= 0)
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96 memset (&gpm_state_information[fd], '\0', sizeof (struct __gpm_state));
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97 gpm_tried = gpm_flag = 1;
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98 gpm_fd = gpm_consolefd = -1;
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99 gpm_stack = NULL;
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428
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100 }
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101
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102 static int
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440
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103 get_process_infd (Lisp_Process *p)
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428
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104 {
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853
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105 Lisp_Object instr, outstr, errstr;
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106 get_process_streams (p, &instr, &outstr, &errstr);
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428
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107 assert (!NILP (instr));
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108 return filedesc_stream_fd (XLSTREAM (instr));
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109 }
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110
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111 DEFUN ("receive-gpm-event", Freceive_gpm_event, 0, 2, 0, /*
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112 Run GPM_GetEvent().
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113 This function is the process handler for the GPM connection.
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114 */
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2286
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115 (process, UNUSED (string)))
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428
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116 {
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793
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117 Gpm_Event ev;
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118 int modifiers = 0;
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119 int button = 1;
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120 Lisp_Object fake_event = Qnil;
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121 Lisp_Event *event = NULL;
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122 struct gcpro gcpro1;
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123 static int num_events;
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428
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124
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793
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125 CHECK_PROCESS (process);
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428
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126
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793
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127 restore_gpm_state (get_process_infd (XPROCESS (process)));
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428
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128
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793
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129 if (!Gpm_GetEvent (&ev))
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130 {
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131 warn_when_safe (Qnil, Qerror,
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132 "Gpm_GetEvent failed - %d", gpm_fd);
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133 return (Qzero);
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134 }
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428
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135
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793
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136 GCPRO1 (fake_event);
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428
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137
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793
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138 num_events++;
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139
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140 fake_event = Fmake_event (Qnil, Qnil);
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141 event = XEVENT (fake_event);
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428
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142
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793
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143 event->timestamp = 0;
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144 event->channel = Fselected_frame (Qnil); /* CONSOLE_SELECTED_FRAME (con); */
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428
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145
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793
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146 /* Whow, wouldn't named defines be NICE!?!?! */
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147 modifiers = 0;
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428
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148
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793
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149 if (ev.modifiers & 1) modifiers |= XEMACS_MOD_SHIFT;
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150 if (ev.modifiers & 2) modifiers |= XEMACS_MOD_META;
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151 if (ev.modifiers & 4) modifiers |= XEMACS_MOD_CONTROL;
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152 if (ev.modifiers & 8) modifiers |= XEMACS_MOD_META;
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153
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154 if (ev.buttons & GPM_B_LEFT)
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155 button = 1;
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156 else if (ev.buttons & GPM_B_MIDDLE)
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157 button = 2;
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158 else if (ev.buttons & GPM_B_RIGHT)
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159 button = 3;
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428
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160
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793
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161 switch (GPM_BARE_EVENTS (ev.type))
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162 {
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163 case GPM_DOWN:
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164 case GPM_UP:
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934
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165 SET_EVENT_TYPE (event,
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166 (ev.type & GPM_DOWN) ? button_press_event : button_release_event);
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1204
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167 SET_EVENT_BUTTON_X (event, ev.x);
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168 SET_EVENT_BUTTON_Y (event, ev.y);
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169 SET_EVENT_BUTTON_BUTTON (event, button);
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170 SET_EVENT_BUTTON_MODIFIERS (event, modifiers);
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793
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171 break;
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172 case GPM_MOVE:
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173 case GPM_DRAG:
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934
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174 SET_EVENT_TYPE (event, pointer_motion_event);
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1204
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175 SET_EVENT_MOTION_X (event, ev.x);
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176 SET_EVENT_MOTION_Y (event, ev.y);
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177 SET_EVENT_MOTION_MODIFIERS (event, modifiers);
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793
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178 default:
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179 /* This will never happen */
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180 break;
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181 }
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428
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182
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793
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183 /* Handle the event */
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184 enqueue_event (fake_event, &gpm_event_queue, &gpm_event_queue_tail);
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428
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185
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793
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186 UNGCPRO;
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428
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187
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793
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188 return (Qzero);
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428
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189 }
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190
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191 static void turn_off_gpm (char *process_name)
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192 {
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793
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193 Lisp_Object process = Fget_process (build_string (process_name));
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194 int fd = -1;
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428
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195
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793
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196 if (NILP (process))
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197 /* Something happened to our GPM process - fail silently */
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198 return;
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428
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199
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793
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200 fd = get_process_infd (XPROCESS (process));
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428
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201
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793
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202 restore_gpm_state (fd);
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428
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203
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793
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204 Gpm_Close();
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428
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205
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793
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206 clear_gpm_state (fd);
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428
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207
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793
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208 Fdelete_process (build_string (process_name));
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428
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209 }
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210
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|
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211 #ifdef TIOCLINUX
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212 static Lisp_Object
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|
2286
|
213 tty_get_foreign_selection (Lisp_Object UNUSED (selection_symbol),
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214 Lisp_Object UNUSED (target_type))
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428
|
215 {
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|
793
|
216 /* This function can GC */
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|
|
217 struct device *d = decode_device (Qnil);
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|
218 int fd = DEVICE_INFD (d);
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|
219 char c = 3;
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220 Lisp_Object output_stream = Qnil;
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221 Lisp_Object terminal_stream = Qnil;
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222 Lisp_Object output_string = Qnil;
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223 struct gcpro gcpro1,gcpro2,gcpro3;
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224
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225 GCPRO3(output_stream,terminal_stream,output_string);
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428
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226
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793
|
227 /* The ioctl() to paste actually puts things in the input queue of
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228 ** the virtual console, so we need to trap that data, since we are
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|
229 ** supposed to return the actual string selection from this
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230 ** function.
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231 */
|
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428
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232
|
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793
|
233 /* I really hate doing this, but it doesn't seem to cause any
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234 ** problems, and it makes the Lstream_read stuff further down
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|
235 ** error out correctly instead of trying to indefinitely read from
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236 ** the console.
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237 **
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|
238 ** There is no set_descriptor_blocking() function call, but in my
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239 ** testing under linux, it has not proved fatal to leave the
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240 ** descriptor in non-blocking mode.
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|
241 **
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|
|
242 ** William Perry Nov 5, 1999
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243 */
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244 set_descriptor_non_blocking (fd);
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|
428
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245
|
|
793
|
246 /* We need two streams, one for reading from the selected device,
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|
247 ** and one to write the data into. There is no writable version
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|
248 ** of the lisp-string lstream, so we make do with a resizing
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|
249 ** buffer stream, and make a string out of it after we are
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|
250 ** done.
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|
251 */
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|
|
252 output_stream = make_resizing_buffer_output_stream ();
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|
|
253 terminal_stream = make_filedesc_input_stream (fd, 0, -1, LSTR_BLOCKED_OK);
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|
|
254 output_string = Qnil;
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255
|
|
|
256 /* #### We should arguably use a specbind() and an unwind routine here,
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|
257 ** #### but I don't care that much right now.
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|
|
258 */
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|
|
259 if (NILP (output_stream) || NILP (terminal_stream))
|
|
|
260 /* Should we signal an error here? */
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|
|
261 goto out;
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|
428
|
262
|
|
793
|
263 if (ioctl (fd, TIOCLINUX, &c) < 0)
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|
|
264 {
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|
|
265 /* Could not get the selection - eek */
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|
|
266 UNGCPRO;
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|
267 return (Qnil);
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|
|
268 }
|
|
428
|
269
|
|
793
|
270 while (1)
|
|
|
271 {
|
|
867
|
272 Ibyte tempbuf[1024]; /* some random amount */
|
|
793
|
273 Bytecount i;
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|
|
274 Bytecount size_in_bytes =
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|
|
275 Lstream_read (XLSTREAM (terminal_stream),
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|
|
276 tempbuf, sizeof (tempbuf));
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|
|
277
|
|
|
278 if (size_in_bytes <= 0)
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|
|
279 /* end of the stream */
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|
280 break;
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281
|
|
|
282 /* convert CR->LF */
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|
|
283 for (i = 0; i < size_in_bytes; i++)
|
|
428
|
284 {
|
|
793
|
285 if (tempbuf[i] == '\r')
|
|
|
286 tempbuf[i] = '\n';
|
|
428
|
287 }
|
|
|
288
|
|
793
|
289 Lstream_write (XLSTREAM (output_stream), tempbuf, size_in_bytes);
|
|
|
290 }
|
|
428
|
291
|
|
793
|
292 Lstream_flush (XLSTREAM (output_stream));
|
|
428
|
293
|
|
793
|
294 output_string =
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|
|
295 make_string (resizing_buffer_stream_ptr (XLSTREAM (output_stream)),
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|
|
296 Lstream_byte_count (XLSTREAM (output_stream)));
|
|
428
|
297
|
|
793
|
298 Lstream_delete (XLSTREAM (output_stream));
|
|
|
299 Lstream_delete (XLSTREAM (terminal_stream));
|
|
428
|
300
|
|
|
301 out:
|
|
793
|
302 UNGCPRO;
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|
|
303 return (output_string);
|
|
428
|
304 }
|
|
|
305
|
|
|
306 static Lisp_Object
|
|
2286
|
307 tty_selection_exists_p (Lisp_Object UNUSED (selection),
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|
|
308 Lisp_Object UNUSED (selection_type))
|
|
428
|
309 {
|
|
793
|
310 return (Qt);
|
|
428
|
311 }
|
|
|
312 #endif /* TIOCLINUX */
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|
|
313
|
|
|
314 #if 0
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|
|
315 static Lisp_Object
|
|
442
|
316 tty_own_selection (Lisp_Object selection_name, Lisp_Object selection_value,
|
|
|
317 Lisp_Object how_to_add, Lisp_Object selection_type)
|
|
428
|
318 {
|
|
793
|
319 /* There is no way to do this cleanly - the GPM selection
|
|
|
320 ** 'protocol' (actually the TIOCLINUX ioctl) requires a start and
|
|
|
321 ** end position on the _screen_, not a string to stick in there.
|
|
|
322 ** Lame.
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|
|
323 **
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|
|
324 ** William Perry Nov 4, 1999
|
|
|
325 */
|
|
428
|
326 }
|
|
|
327 #endif
|
|
|
328
|
|
|
329 /* This function appears to work once in a blue moon. I'm not sure
|
|
793
|
330 ** exactly why either. *sigh*
|
|
|
331 **
|
|
|
332 ** William Perry Nov 4, 1999
|
|
|
333 **
|
|
|
334 ** Apparently, this is the way (mouse-position) is supposed to work,
|
|
|
335 ** and I was just expecting something else. (mouse-pixel-position)
|
|
|
336 ** works just fine.
|
|
|
337 **
|
|
|
338 ** William Perry Nov 7, 1999
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|
|
339 */
|
|
428
|
340 static int
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|
|
341 tty_get_mouse_position (struct device *d, Lisp_Object *frame, int *x, int *y)
|
|
|
342 {
|
|
793
|
343 Gpm_Event ev;
|
|
|
344 int num_buttons;
|
|
428
|
345
|
|
793
|
346 memset(&ev,'\0',sizeof(ev));
|
|
428
|
347
|
|
793
|
348 num_buttons = Gpm_GetSnapshot(&ev);
|
|
428
|
349
|
|
793
|
350 if (!num_buttons)
|
|
|
351 /* This means there are events pending... */
|
|
428
|
352
|
|
793
|
353 /* #### In theory, we should drain the events pending, stick
|
|
|
354 ** #### them in the queue, and return the mouse position
|
|
|
355 ** #### anyway.
|
|
|
356 */
|
|
|
357 return (-1);
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|
|
358 *x = ev.x;
|
|
|
359 *y = ev.y;
|
|
|
360 *frame = DEVICE_SELECTED_FRAME (d);
|
|
|
361 return (1);
|
|
428
|
362 }
|
|
|
363
|
|
|
364 static void
|
|
2286
|
365 tty_set_mouse_position (struct window *UNUSED (w), int UNUSED (x),
|
|
|
366 int UNUSED (y))
|
|
428
|
367 {
|
|
793
|
368 /*
|
|
|
369 #### I couldn't find any GPM functions that set the mouse position.
|
|
|
370 #### Mr. Perry had left this function empty; that must be why.
|
|
|
371 #### karlheg
|
|
|
372 */
|
|
428
|
373 }
|
|
|
374
|
|
|
375 static int gpm_event_pending_p (int user_p)
|
|
|
376 {
|
|
793
|
377 Lisp_Object event;
|
|
428
|
378
|
|
793
|
379 EVENT_CHAIN_LOOP (event, gpm_event_queue)
|
|
|
380 {
|
|
|
381 if (!user_p || command_event_p (event))
|
|
|
382 return (1);
|
|
|
383 }
|
|
|
384 return (orig_event_pending_p (user_p));
|
|
428
|
385 }
|
|
|
386
|
|
440
|
387 static void gpm_next_event_cb (Lisp_Event *event)
|
|
428
|
388 {
|
|
793
|
389 /* #### It would be nice to preserve some sort of ordering of the
|
|
|
390 ** #### different types of events, but that would be quite a bit
|
|
|
391 ** #### of work, and would more than likely break the abstraction
|
|
|
392 ** #### between the other event loops and this one.
|
|
|
393 */
|
|
440
|
394
|
|
793
|
395 if (!NILP (gpm_event_queue))
|
|
|
396 {
|
|
|
397 Lisp_Object queued_event =
|
|
|
398 dequeue_event (&gpm_event_queue, &gpm_event_queue_tail);
|
|
|
399 *event = *(XEVENT (queued_event));
|
|
|
400
|
|
|
401 if (event->event_type == pointer_motion_event)
|
|
428
|
402 {
|
|
793
|
403 struct device *d = decode_device (event->channel);
|
|
|
404 int fd = DEVICE_INFD (d);
|
|
428
|
405
|
|
793
|
406 /* Ok, now this is just freaky. Bear with me though.
|
|
|
407 **
|
|
|
408 ** If you run gnuclient and attach to a XEmacs running in
|
|
|
409 ** X or on another TTY, the mouse cursor does not get
|
|
|
410 ** drawn correctly. This is because the ioctl() fails
|
|
|
411 ** with EPERM because the TTY specified is not our
|
|
|
412 ** controlling terminal. If you are the superuser, it
|
|
|
413 ** will work just spiffy. The appropriate source file (at
|
|
|
414 ** least in linux 2.2.x) is
|
|
|
415 ** .../linux/drivers/char/console.c in the function
|
|
|
416 ** tioclinux(). The following bit of code is brutal to
|
|
|
417 ** us:
|
|
|
418 **
|
|
|
419 ** if (current->tty != tty && !suser())
|
|
|
420 ** return -EPERM;
|
|
|
421 **
|
|
|
422 ** I even tried setting us as a process leader, removing
|
|
|
423 ** our controlling terminal, and then using the TIOCSCTTY
|
|
|
424 ** to set up a new controlling terminal, all with no luck.
|
|
|
425 **
|
|
|
426 ** What is even weirder is if you run XEmacs in a VC, and
|
|
|
427 ** attach to it from another VC with gnuclient, go back to
|
|
|
428 ** the original VC and hit a key, the mouse pointer
|
|
|
429 ** displays (in BOTH VCs), until you hit a key in the
|
|
|
430 ** second VC, after which it does not display in EITHER
|
|
|
431 ** VC. Bizarre, no?
|
|
|
432 **
|
|
|
433 ** All I can say is thank god Linux comes with source code
|
|
|
434 ** or I would have been completely confused. Well, ok,
|
|
|
435 ** I'm still completely confused. I don't see why they
|
|
|
436 ** don't just check the permissions on the device
|
|
|
437 ** (actually, if you have enough access to it to get the
|
|
|
438 ** console's file descriptor, you should be able to do
|
|
|
439 ** with it as you wish, but maybe that is just me).
|
|
|
440 **
|
|
|
441 ** William M. Perry - Nov 9, 1999
|
|
|
442 */
|
|
428
|
443
|
|
1204
|
444 Gpm_DrawPointer (EVENT_MOTION_X (event),EVENT_MOTION_Y (event), fd);
|
|
428
|
445 }
|
|
|
446
|
|
793
|
447 return;
|
|
|
448 }
|
|
|
449
|
|
|
450 orig_next_event_cb (event);
|
|
428
|
451 }
|
|
|
452
|
|
|
453 static void hook_event_callbacks_once (void)
|
|
|
454 {
|
|
793
|
455 static int hooker;
|
|
428
|
456
|
|
793
|
457 if (!hooker)
|
|
|
458 {
|
|
|
459 orig_event_pending_p = event_stream->event_pending_p;
|
|
|
460 orig_next_event_cb = event_stream->next_event_cb;
|
|
|
461 event_stream->event_pending_p = gpm_event_pending_p;
|
|
|
462 event_stream->next_event_cb = gpm_next_event_cb;
|
|
|
463 hooker = 1;
|
|
|
464 }
|
|
428
|
465 }
|
|
|
466
|
|
|
467 static void hook_console_methods_once (void)
|
|
|
468 {
|
|
793
|
469 static int hooker;
|
|
428
|
470
|
|
793
|
471 if (!hooker)
|
|
|
472 {
|
|
|
473 /* Install the mouse position methods for the TTY console type */
|
|
|
474 CONSOLE_HAS_METHOD (tty, get_mouse_position);
|
|
|
475 CONSOLE_HAS_METHOD (tty, set_mouse_position);
|
|
|
476 CONSOLE_HAS_METHOD (tty, get_foreign_selection);
|
|
|
477 CONSOLE_HAS_METHOD (tty, selection_exists_p);
|
|
428
|
478 #if 0
|
|
793
|
479 CONSOLE_HAS_METHOD (tty, own_selection);
|
|
428
|
480 #endif
|
|
793
|
481 }
|
|
428
|
482 }
|
|
|
483
|
|
|
484 DEFUN ("gpm-enabled-p", Fgpm_enabled_p, 0, 1, 0, /*
|
|
|
485 Return non-nil if GPM mouse support is currently enabled on DEVICE.
|
|
|
486 */
|
|
793
|
487 (device))
|
|
428
|
488 {
|
|
793
|
489 char *console_name = ttyname (DEVICE_INFD (decode_device (device)));
|
|
|
490 char process_name[1024];
|
|
|
491 Lisp_Object proc;
|
|
428
|
492
|
|
793
|
493 if (!console_name)
|
|
|
494 return (Qnil);
|
|
428
|
495
|
|
793
|
496 memset (process_name, '\0', sizeof(process_name));
|
|
|
497 snprintf (process_name, sizeof(process_name) - 1, "gpm for %s",
|
|
|
498 console_name);
|
|
428
|
499
|
|
793
|
500 proc = Fget_process (build_string (process_name));
|
|
428
|
501
|
|
793
|
502 if (NILP (proc))
|
|
|
503 return (Qnil);
|
|
428
|
504
|
|
793
|
505 if (1) /* (PROCESS_LIVE_P (proc)) */
|
|
|
506 return (Qt);
|
|
|
507 return (Qnil);
|
|
428
|
508 }
|
|
|
509
|
|
|
510 DEFUN ("gpm-enable", Fgpm_enable, 0, 2, 0, /*
|
|
|
511 Toggle accepting of GPM mouse events.
|
|
|
512 */
|
|
793
|
513 (device, arg))
|
|
428
|
514 {
|
|
793
|
515 Gpm_Connect conn;
|
|
|
516 int rval;
|
|
|
517 Lisp_Object gpm_process;
|
|
|
518 Lisp_Object gpm_filter;
|
|
|
519 struct device *d = decode_device (device);
|
|
|
520 int fd = DEVICE_INFD (d);
|
|
|
521 char *console_name = ttyname (fd);
|
|
|
522 char process_name[1024];
|
|
428
|
523
|
|
793
|
524 hook_event_callbacks_once ();
|
|
|
525 hook_console_methods_once ();
|
|
|
526
|
|
|
527 if (noninteractive)
|
|
|
528 invalid_operation ("Can't connect to GPM in batch mode", Qunbound);
|
|
428
|
529
|
|
793
|
530 if (!console_name)
|
|
|
531 /* Something seriously wrong here... */
|
|
|
532 return (Qnil);
|
|
|
533
|
|
|
534 memset (process_name, '\0', sizeof(process_name));
|
|
|
535 snprintf (process_name, sizeof(process_name) - 1, "gpm for %s",
|
|
|
536 console_name);
|
|
428
|
537
|
|
793
|
538 if (NILP (arg))
|
|
|
539 {
|
|
|
540 turn_off_gpm (process_name);
|
|
|
541 return (Qnil);
|
|
|
542 }
|
|
428
|
543
|
|
793
|
544 /* DANGER DANGER.
|
|
|
545 ** Though shalt not call (gpm-enable t) after we have already
|
|
|
546 ** started, or stuff blows up.
|
|
|
547 */
|
|
|
548 if (!NILP (Fgpm_enabled_p (device)))
|
|
|
549 invalid_operation ("GPM already enabled for this console", Qunbound);
|
|
428
|
550
|
|
793
|
551 conn.eventMask = GPM_DOWN|GPM_UP|GPM_MOVE|GPM_DRAG;
|
|
|
552 conn.defaultMask = GPM_MOVE;
|
|
|
553 conn.minMod = 0;
|
|
|
554 conn.maxMod = ((1 << KG_SHIFT) | (1 << KG_ALT) | (1 << KG_CTRL));
|
|
428
|
555
|
|
793
|
556 /* Reset some silly static variables so that multiple Gpm_Open()
|
|
|
557 ** calls have even a slight chance of working
|
|
|
558 */
|
|
|
559 gpm_tried = 0;
|
|
|
560 gpm_flag = 0;
|
|
|
561 gpm_stack = NULL;
|
|
428
|
562
|
|
793
|
563 /* Make sure Gpm_Open() does ioctl() on the correct
|
|
|
564 ** descriptor, or it can get the wrong terminal sizes, etc.
|
|
|
565 */
|
|
|
566 gpm_consolefd = fd;
|
|
440
|
567
|
|
793
|
568 /* We have to pass the virtual console manually, otherwise if you
|
|
|
569 ** use 'gnuclient -nw' to connect to an XEmacs that is running in
|
|
|
570 ** X, Gpm_Open() tries to use ttyname(0 | 1 | 2) to find out which
|
|
|
571 ** console you are using, which is of course not correct for the
|
|
|
572 ** new tty device.
|
|
|
573 */
|
|
|
574 if (strncmp (console_name, "/dev/tty", 8) || !isdigit (console_name[8]))
|
|
|
575 /* Urk, something really wrong */
|
|
|
576 return (Qnil);
|
|
428
|
577
|
|
793
|
578 rval = Gpm_Open (&conn, atoi (console_name + 8));
|
|
428
|
579
|
|
793
|
580 switch (rval)
|
|
|
581 {
|
|
|
582 case -1: /* General failure */
|
|
|
583 break;
|
|
|
584 case -2: /* We are running under an XTerm */
|
|
|
585 Gpm_Close();
|
|
|
586 break;
|
|
|
587 default:
|
|
|
588 /* Is this really necessary? */
|
|
|
589 set_descriptor_non_blocking (gpm_fd);
|
|
|
590 store_gpm_state (gpm_fd);
|
|
|
591 gpm_process =
|
|
|
592 connect_to_file_descriptor (build_string (process_name), Qnil,
|
|
|
593 make_int (gpm_fd),
|
|
|
594 make_int (gpm_fd));
|
|
428
|
595
|
|
793
|
596 if (!NILP (gpm_process))
|
|
|
597 {
|
|
|
598 rval = 0;
|
|
|
599 Fprocess_kill_without_query (gpm_process, Qnil);
|
|
2720
|
600 #ifdef MC_ALLOC
|
|
|
601 gpm_filter = MC_ALLOC_Freceive_gpm_event;
|
|
|
602 #else /* not MC_ALLOC */
|
|
793
|
603 gpm_filter = wrap_subr (&SFreceive_gpm_event);
|
|
2720
|
604 #endif /* not MC_ALLOC */
|
|
853
|
605 set_process_filter (gpm_process, gpm_filter, 1, 0);
|
|
428
|
606
|
|
793
|
607 /* Keep track of the device for later */
|
|
|
608 /* Fput (gpm_process, intern ("gpm-device"), device); */
|
|
428
|
609 }
|
|
793
|
610 else
|
|
|
611 {
|
|
|
612 Gpm_Close ();
|
|
|
613 rval = -1;
|
|
|
614 }
|
|
|
615 }
|
|
428
|
616
|
|
793
|
617 return (rval ? Qnil : Qt);
|
|
428
|
618 }
|
|
|
619
|
|
|
620 void vars_of_gpmevent (void)
|
|
|
621 {
|
|
793
|
622 gpm_event_queue = Qnil;
|
|
|
623 gpm_event_queue_tail = Qnil;
|
|
|
624 staticpro (&gpm_event_queue);
|
|
|
625 staticpro (&gpm_event_queue_tail);
|
|
1204
|
626 dump_add_root_lisp_object (&gpm_event_queue);
|
|
|
627 dump_add_root_lisp_object (&gpm_event_queue_tail);
|
|
428
|
628 }
|
|
|
629
|
|
|
630 void syms_of_gpmevent (void)
|
|
|
631 {
|
|
2720
|
632 #ifdef MC_ALLOC
|
|
|
633 #define DEFSUBR_receive_gpm_event(Fname) \
|
|
|
634 do { \
|
|
|
635 DEFSUBR_MC_ALLOC (Fname); \
|
|
|
636 defsubr (S##Fname); \
|
|
|
637 MC_ALLOC_Freceive_gpm_event = wrap_subr (S##Fname); \
|
|
|
638 } while (0)
|
|
|
639 DEFSUBR_receive_gpm_event (Freceive_gpm_event);
|
|
|
640 #else /* not MC_ALLOC */
|
|
793
|
641 DEFSUBR (Freceive_gpm_event);
|
|
2720
|
642 #endif /* not MC_ALLOC */
|
|
793
|
643 DEFSUBR (Fgpm_enable);
|
|
|
644 DEFSUBR (Fgpm_enabled_p);
|
|
428
|
645 }
|
|
|
646
|
|
|
647 #endif /* HAVE_GPM */
|
