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428
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1 /* Asynchronous subprocess control for XEmacs.
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2 Copyright (C) 1985, 1986, 1987, 1988, 1992, 1993, 1994, 1995
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3 Free Software Foundation, Inc.
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4 Copyright (C) 1995 Sun Microsystems, Inc.
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5 Copyright (C) 1995, 1996 Ben Wing.
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6
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7 This file is part of XEmacs.
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8
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9 XEmacs is free software; you can redistribute it and/or modify it
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10 under the terms of the GNU General Public License as published by the
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11 Free Software Foundation; either version 2, or (at your option) any
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12 later version.
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13
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14 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with XEmacs; see the file COPYING. If not, write to
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21 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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22 Boston, MA 02111-1307, USA. */
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23
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24 /* This file has been Mule-ized except for `start-process-internal',
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25 `open-network-stream-internal' and `open-multicast-group-internal'. */
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26
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27 /* This file has been split into process.c and process-unix.c by
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28 Kirill M. Katsnelson <kkm@kis.ru>, so please bash him and not
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29 the original author(s) */
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30
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31 #include <config.h>
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32
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33 #if !defined (NO_SUBPROCESSES)
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34
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35 /* The entire file is within this conditional */
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36
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37 #include "lisp.h"
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38
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39 #include "buffer.h"
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40 #include "commands.h"
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41 #include "events.h"
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42 #include "frame.h"
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43 #include "hash.h"
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44 #include "insdel.h"
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45 #include "lstream.h"
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46 #include "opaque.h"
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47 #include "process.h"
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48 #include "procimpl.h"
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49 #include "window.h"
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50 #ifdef FILE_CODING
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51 #include "file-coding.h"
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52 #endif
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53
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54 #include "sysfile.h"
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55 #include "sysproc.h"
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56 #include "systime.h"
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57 #include "syssignal.h" /* Always include before systty.h */
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58 #include "systty.h"
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59 #include "syswait.h"
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60
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61 Lisp_Object Qprocessp;
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62
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63 /* Process methods */
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64 struct process_methods the_process_methods;
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65
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66 /* a process object is a network connection when its pid field a cons
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67 (name of name of port we are connected to . foreign host name) */
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68
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69 /* Valid values of process->status_symbol */
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70 Lisp_Object Qrun, Qstop;
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71 /* Qrun => Qopen, Qexit => Qclosed for "network connection" processes */
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72 Lisp_Object Qopen, Qclosed;
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73 /* Protocol families */
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74 Lisp_Object Qtcp, Qudp;
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75
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76 #ifdef HAVE_MULTICAST
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77 Lisp_Object Qmulticast; /* Will be used for occasional warnings */
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78 #endif
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79
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80 /* t means use pty, nil means use a pipe,
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81 maybe other values to come. */
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82 Lisp_Object Vprocess_connection_type;
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83
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84 /* Read comments to DEFVAR of this */
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85 int windowed_process_io;
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86
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87 #ifdef PROCESS_IO_BLOCKING
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88 /* List of port numbers or port names to set a blocking I/O mode.
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89 Nil means set a non-blocking I/O mode [default]. */
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90 Lisp_Object network_stream_blocking_port_list;
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91 #endif /* PROCESS_IO_BLOCKING */
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92
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93 /* Number of events of change of status of a process. */
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94 volatile int process_tick;
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95
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96 /* Number of events for which the user or sentinel has been notified. */
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97 static int update_tick;
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98
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99 /* Nonzero means delete a process right away if it exits. */
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100 int delete_exited_processes;
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101
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102 /* Hash table which maps USIDs as returned by create_stream_pair_cb to
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103 process objects. Processes are not GC-protected through this! */
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104 struct hash_table *usid_to_process;
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105
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106 /* List of process objects. */
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107 Lisp_Object Vprocess_list;
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108
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109 extern Lisp_Object Vlisp_EXEC_SUFFIXES;
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110
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111
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112
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113 static Lisp_Object
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114 mark_process (Lisp_Object obj)
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115 {
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116 struct Lisp_Process *proc = XPROCESS (obj);
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117 MAYBE_PROCMETH (mark_process_data, (proc));
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118 mark_object (proc->name);
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119 mark_object (proc->command);
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120 mark_object (proc->filter);
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121 mark_object (proc->sentinel);
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122 mark_object (proc->buffer);
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123 mark_object (proc->mark);
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124 mark_object (proc->pid);
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125 mark_object (proc->pipe_instream);
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126 mark_object (proc->pipe_outstream);
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127 #ifdef FILE_CODING
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128 mark_object (proc->coding_instream);
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129 mark_object (proc->coding_outstream);
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130 #endif
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131 return proc->status_symbol;
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132 }
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133
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134 static void
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135 print_process (Lisp_Object obj, Lisp_Object printcharfun, int escapeflag)
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136 {
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137 struct Lisp_Process *proc = XPROCESS (obj);
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138
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139 if (print_readably)
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140 error ("printing unreadable object #<process %s>",
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141 XSTRING_DATA (proc->name));
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142
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143 if (!escapeflag)
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144 {
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145 print_internal (proc->name, printcharfun, 0);
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146 }
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147 else
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148 {
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149 int netp = network_connection_p (obj);
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150 write_c_string ((netp ? GETTEXT ("#<network connection ") :
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151 GETTEXT ("#<process ")), printcharfun);
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152 print_internal (proc->name, printcharfun, 1);
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153 write_c_string ((netp ? " " : " pid "), printcharfun);
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154 print_internal (proc->pid, printcharfun, 1);
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155 write_c_string (" state:", printcharfun);
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156 print_internal (proc->status_symbol, printcharfun, 1);
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157 MAYBE_PROCMETH (print_process_data, (proc, printcharfun));
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158 write_c_string (">", printcharfun);
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159 }
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160 }
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161
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162 #ifdef HAVE_WINDOW_SYSTEM
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163 extern void debug_process_finalization (struct Lisp_Process *p);
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164 #endif /* HAVE_WINDOW_SYSTEM */
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165
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166 static void
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167 finalize_process (void *header, int for_disksave)
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168 {
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169 /* #### this probably needs to be tied into the tty event loop */
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170 /* #### when there is one */
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171 struct Lisp_Process *p = (struct Lisp_Process *) header;
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172 #ifdef HAVE_WINDOW_SYSTEM
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173 if (!for_disksave)
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174 {
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175 debug_process_finalization (p);
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176 }
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177 #endif /* HAVE_WINDOW_SYSTEM */
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178
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179 if (p->process_data)
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180 {
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181 MAYBE_PROCMETH (finalize_process_data, (p, for_disksave));
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182 if (!for_disksave)
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183 xfree (p->process_data);
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184 }
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185 }
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186
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187 DEFINE_LRECORD_IMPLEMENTATION ("process", process,
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188 mark_process, print_process, finalize_process,
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189 0, 0, 0, struct Lisp_Process);
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190
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191 /************************************************************************/
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192 /* basic process accessors */
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193 /************************************************************************/
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194
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195 /* Under FILE_CODING, this function returns low-level streams, connected
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196 directly to the child process, rather than en/decoding FILE_CODING
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197 streams */
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198 void
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199 get_process_streams (struct Lisp_Process *p,
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200 Lisp_Object *instr, Lisp_Object *outstr)
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201 {
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202 assert (p);
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203 assert (NILP (p->pipe_instream) || LSTREAMP(p->pipe_instream));
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204 assert (NILP (p->pipe_outstream) || LSTREAMP(p->pipe_outstream));
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205 *instr = p->pipe_instream;
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206 *outstr = p->pipe_outstream;
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207 }
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208
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209 struct Lisp_Process *
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210 get_process_from_usid (USID usid)
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211 {
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212 CONST void *vval;
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213
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214 assert (usid != USID_ERROR && usid != USID_DONTHASH);
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215
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216 if (gethash ((CONST void*)usid, usid_to_process, &vval))
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217 {
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218 Lisp_Object proc;
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219 CVOID_TO_LISP (proc, vval);
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220 return XPROCESS (proc);
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221 }
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222 else
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223 return 0;
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224 }
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225
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226 int
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227 get_process_selected_p (struct Lisp_Process *p)
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228 {
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229 return p->selected;
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230 }
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231
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232 void
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233 set_process_selected_p (struct Lisp_Process *p, int selected_p)
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234 {
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235 p->selected = !!selected_p;
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236 }
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237
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238 int
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239 connected_via_filedesc_p (struct Lisp_Process *p)
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240 {
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241 return MAYBE_INT_PROCMETH (tooltalk_connection_p, (p));
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242 }
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243
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244 #ifdef HAVE_SOCKETS
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245 int
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246 network_connection_p (Lisp_Object process)
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247 {
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248 return CONSP (XPROCESS (process)->pid);
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249 }
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250 #endif
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251
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252 DEFUN ("processp", Fprocessp, 1, 1, 0, /*
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253 Return t if OBJECT is a process.
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254 */
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255 (obj))
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256 {
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257 return PROCESSP (obj) ? Qt : Qnil;
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258 }
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259
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260 DEFUN ("process-list", Fprocess_list, 0, 0, 0, /*
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261 Return a list of all processes.
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262 */
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263 ())
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264 {
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265 return Fcopy_sequence (Vprocess_list);
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266 }
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267
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268 DEFUN ("get-process", Fget_process, 1, 1, 0, /*
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269 Return the process named NAME, or nil if there is none.
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270 */
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271 (name))
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272 {
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273 Lisp_Object tail;
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274
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275 if (PROCESSP (name))
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276 return name;
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277
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278 if (!gc_in_progress)
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279 /* this only gets called during GC when emacs is going away as a result
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280 of a signal or crash. */
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281 CHECK_STRING (name);
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282
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283 for (tail = Vprocess_list; CONSP (tail); tail = XCDR (tail))
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284 {
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285 Lisp_Object proc = XCAR (tail);
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286 QUIT;
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287 if (internal_equal (name, XPROCESS (proc)->name, 0))
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288 return XCAR (tail);
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289 }
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290 return Qnil;
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291 }
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292
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293 DEFUN ("get-buffer-process", Fget_buffer_process, 1, 1, 0, /*
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294 Return the (or, a) process associated with BUFFER.
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295 BUFFER may be a buffer or the name of one.
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296 */
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297 (name))
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298 {
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299 Lisp_Object buf, tail, proc;
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300
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301 if (NILP (name)) return Qnil;
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302 buf = Fget_buffer (name);
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303 if (NILP (buf)) return Qnil;
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304
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305 for (tail = Vprocess_list; CONSP (tail); tail = XCDR (tail))
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306 {
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307 /* jwz: do not quit here - it isn't necessary, as there is no way for
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308 Vprocess_list to get circular or overwhelmingly long, and this
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309 function is called from layout_mode_element under redisplay. */
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310 /* QUIT; */
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311 proc = XCAR (tail);
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312 if (PROCESSP (proc) && EQ (XPROCESS (proc)->buffer, buf))
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313 return proc;
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314 }
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315 return Qnil;
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316 }
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317
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318 /* This is how commands for the user decode process arguments. It
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319 accepts a process, a process name, a buffer, a buffer name, or nil.
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320 Buffers denote the first process in the buffer, and nil denotes the
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321 current buffer. */
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322
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323 static Lisp_Object
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324 get_process (Lisp_Object name)
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325 {
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326 Lisp_Object proc, obj;
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327
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328 #ifdef I18N3
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329 /* #### Look more closely into translating process names. */
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330 #endif
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331
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332 /* This may be called during a GC from process_send_signal() from
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333 kill_buffer_processes() if emacs decides to abort(). */
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334 if (PROCESSP (name))
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335 return name;
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336
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337 if (STRINGP (name))
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338 {
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339 obj = Fget_process (name);
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340 if (NILP (obj))
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341 obj = Fget_buffer (name);
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342 if (NILP (obj))
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343 error ("Process %s does not exist", XSTRING_DATA (name));
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344 }
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345 else if (NILP (name))
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346 obj = Fcurrent_buffer ();
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347 else
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348 obj = name;
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349
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350 /* Now obj should be either a buffer object or a process object.
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351 */
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352 if (BUFFERP (obj))
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353 {
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354 proc = Fget_buffer_process (obj);
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355 if (NILP (proc))
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356 error ("Buffer %s has no process", XSTRING_DATA (XBUFFER(obj)->name));
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357 }
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358 else
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359 {
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|
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360 /* #### This was commented out. Although, simple
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361 (kill-process 7 "qqq") resulted in a fatal error. - kkm */
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362 CHECK_PROCESS (obj);
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363 proc = obj;
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364 }
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365 return proc;
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366 }
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367
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368 DEFUN ("process-id", Fprocess_id, 1, 1, 0, /*
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369 Return the process id of PROCESS.
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370 This is the pid of the Unix process which PROCESS uses or talks to.
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371 For a network connection, this value is a cons of
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372 (foreign-network-port . foreign-host-name).
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373 */
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374 (proc))
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375 {
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376 Lisp_Object pid;
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377 CHECK_PROCESS (proc);
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378
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379 pid = XPROCESS (proc)->pid;
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380 if (network_connection_p (proc))
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381 /* return Qnil; */
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382 return Fcons (Fcar (pid), Fcdr (pid));
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383 else
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384 return pid;
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385 }
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386
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387 DEFUN ("process-name", Fprocess_name, 1, 1, 0, /*
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388 Return the name of PROCESS, as a string.
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|
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389 This is the name of the program invoked in PROCESS,
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390 possibly modified to make it unique among process names.
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391 */
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392 (proc))
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393 {
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394 CHECK_PROCESS (proc);
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395 return XPROCESS (proc)->name;
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|
|
396 }
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|
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397
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398 DEFUN ("process-command", Fprocess_command, 1, 1, 0, /*
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399 Return the command that was executed to start PROCESS.
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|
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400 This is a list of strings, the first string being the program executed
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|
|
401 and the rest of the strings being the arguments given to it.
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|
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402 */
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403 (proc))
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404 {
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|
|
405 CHECK_PROCESS (proc);
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|
406 return XPROCESS (proc)->command;
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|
|
407 }
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|
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408
|
|
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409
|
|
|
410 /************************************************************************/
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|
|
411 /* creating a process */
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|
|
412 /************************************************************************/
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413
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|
|
414 Lisp_Object
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|
|
415 make_process_internal (Lisp_Object name)
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|
|
416 {
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|
|
417 Lisp_Object val, name1;
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|
|
418 int i;
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|
|
419 struct Lisp_Process *p =
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|
|
420 alloc_lcrecord_type (struct Lisp_Process, &lrecord_process);
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|
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421
|
|
|
422 /* If name is already in use, modify it until it is unused. */
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|
|
423 name1 = name;
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|
|
424 for (i = 1; ; i++)
|
|
|
425 {
|
|
|
426 char suffix[10];
|
|
|
427 Lisp_Object tem = Fget_process (name1);
|
|
|
428 if (NILP (tem))
|
|
|
429 break;
|
|
|
430 sprintf (suffix, "<%d>", i);
|
|
|
431 name1 = concat2 (name, build_string (suffix));
|
|
|
432 }
|
|
|
433 name = name1;
|
|
|
434 p->name = name;
|
|
|
435
|
|
|
436 p->command = Qnil;
|
|
|
437 p->filter = Qnil;
|
|
|
438 p->sentinel = Qnil;
|
|
|
439 p->buffer = Qnil;
|
|
|
440 p->mark = Fmake_marker ();
|
|
|
441 p->pid = Qnil;
|
|
|
442 p->status_symbol = Qrun;
|
|
|
443 p->exit_code = 0;
|
|
|
444 p->core_dumped = 0;
|
|
|
445 p->filter_does_read = 0;
|
|
|
446 p->kill_without_query = 0;
|
|
|
447 p->selected = 0;
|
|
|
448 p->tick = 0;
|
|
|
449 p->update_tick = 0;
|
|
|
450 p->pipe_instream = Qnil;
|
|
|
451 p->pipe_outstream = Qnil;
|
|
|
452 #ifdef FILE_CODING
|
|
|
453 p->coding_instream = Qnil;
|
|
|
454 p->coding_outstream = Qnil;
|
|
|
455 #endif
|
|
|
456
|
|
|
457 p->process_data = 0;
|
|
|
458 MAYBE_PROCMETH (alloc_process_data, (p));
|
|
|
459
|
|
|
460 XSETPROCESS (val, p);
|
|
|
461
|
|
|
462 Vprocess_list = Fcons (val, Vprocess_list);
|
|
|
463 return val;
|
|
|
464 }
|
|
|
465
|
|
|
466 void
|
|
|
467 init_process_io_handles (struct Lisp_Process *p, void* in, void* out, int flags)
|
|
|
468 {
|
|
|
469 USID usid = event_stream_create_stream_pair (in, out,
|
|
|
470 &p->pipe_instream, &p->pipe_outstream,
|
|
|
471 flags);
|
|
|
472
|
|
|
473 if (usid == USID_ERROR)
|
|
|
474 report_file_error ("Setting up communication with subprocess", Qnil);
|
|
|
475
|
|
|
476 if (usid != USID_DONTHASH)
|
|
|
477 {
|
|
|
478 Lisp_Object proc = Qnil;
|
|
|
479 XSETPROCESS (proc, p);
|
|
|
480 puthash ((CONST void*)usid, LISP_TO_VOID (proc), usid_to_process);
|
|
|
481 }
|
|
|
482
|
|
|
483 MAYBE_PROCMETH (init_process_io_handles, (p, in, out, flags));
|
|
|
484
|
|
|
485 #ifdef FILE_CODING
|
|
|
486 p->coding_instream = make_decoding_input_stream
|
|
|
487 (XLSTREAM (p->pipe_instream),
|
|
|
488 Fget_coding_system (Vcoding_system_for_read));
|
|
|
489 Lstream_set_character_mode (XLSTREAM (p->coding_instream));
|
|
|
490 p->coding_outstream = make_encoding_output_stream
|
|
|
491 (XLSTREAM (p->pipe_outstream),
|
|
|
492 Fget_coding_system (Vcoding_system_for_write));
|
|
|
493 /* CODE_CNTL (&out_state[outchannel]) |= CC_END; !!####
|
|
|
494 What's going on here? */
|
|
|
495 #endif /* FILE_CODING */
|
|
|
496 }
|
|
|
497
|
|
|
498 static void
|
|
|
499 create_process (Lisp_Object process, Lisp_Object *argv, int nargv,
|
|
|
500 Lisp_Object program, Lisp_Object cur_dir)
|
|
|
501 {
|
|
|
502 struct Lisp_Process *p = XPROCESS (process);
|
|
|
503 int pid;
|
|
|
504
|
|
|
505 /* *_create_process may change status_symbol, if the process
|
|
|
506 is a kind of "fire-and-forget" (no I/O, unwaitable) */
|
|
|
507 p->status_symbol = Qrun;
|
|
|
508 p->exit_code = 0;
|
|
|
509
|
|
|
510 pid = PROCMETH (create_process, (p, argv, nargv, program, cur_dir));
|
|
|
511
|
|
|
512 p->pid = make_int (pid);
|
|
|
513 if (!NILP(p->pipe_instream))
|
|
|
514 event_stream_select_process (p);
|
|
|
515 }
|
|
|
516
|
|
|
517 /* This function is the unwind_protect form for Fstart_process_internal. If
|
|
|
518 PROC doesn't have its pid set, then we know someone has signalled
|
|
|
519 an error and the process wasn't started successfully, so we should
|
|
|
520 remove it from the process list. */
|
|
|
521 static void remove_process (Lisp_Object proc);
|
|
|
522 static Lisp_Object
|
|
|
523 start_process_unwind (Lisp_Object proc)
|
|
|
524 {
|
|
|
525 /* Was PROC started successfully? */
|
|
|
526 if (EQ (XPROCESS (proc)->pid, Qnil))
|
|
|
527 remove_process (proc);
|
|
|
528 return Qnil;
|
|
|
529 }
|
|
|
530
|
|
|
531 DEFUN ("start-process-internal", Fstart_process_internal, 3, MANY, 0, /*
|
|
|
532 Start a program in a subprocess. Return the process object for it.
|
|
|
533 Args are NAME BUFFER PROGRAM &rest PROGRAM-ARGS
|
|
|
534 NAME is name for process. It is modified if necessary to make it unique.
|
|
|
535 BUFFER is the buffer or (buffer-name) to associate with the process.
|
|
|
536 Process output goes at end of that buffer, unless you specify
|
|
|
537 an output stream or filter function to handle the output.
|
|
|
538 BUFFER may be also nil, meaning that this process is not associated
|
|
|
539 with any buffer
|
|
|
540 Third arg is program file name. It is searched for as in the shell.
|
|
|
541 Remaining arguments are strings to give program as arguments.
|
|
|
542 INCODE and OUTCODE specify the coding-system objects used in input/output
|
|
|
543 from/to the process.
|
|
|
544 */
|
|
|
545 (int nargs, Lisp_Object *args))
|
|
|
546 {
|
|
|
547 /* This function can call lisp */
|
|
|
548 /* !!#### This function has not been Mule-ized */
|
|
|
549 Lisp_Object buffer, name, program, proc, current_dir;
|
|
|
550 Lisp_Object tem;
|
|
|
551 int speccount = specpdl_depth ();
|
|
|
552 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
553
|
|
|
554 name = args[0];
|
|
|
555 buffer = args[1];
|
|
|
556 program = args[2];
|
|
|
557 current_dir = Qnil;
|
|
|
558
|
|
|
559 /* Protect against various file handlers doing GCs below. */
|
|
|
560 GCPRO3 (buffer, program, current_dir);
|
|
|
561
|
|
|
562 if (!NILP (buffer))
|
|
|
563 buffer = Fget_buffer_create (buffer);
|
|
|
564
|
|
|
565 CHECK_STRING (name);
|
|
|
566 CHECK_STRING (program);
|
|
|
567
|
|
|
568 /* Make sure that the child will be able to chdir to the current
|
|
|
569 buffer's current directory, or its unhandled equivalent. We
|
|
|
570 can't just have the child check for an error when it does the
|
|
|
571 chdir, since it's in a vfork.
|
|
|
572
|
|
|
573 Note: these assignments and calls are like this in order to insure
|
|
|
574 "caller protects args" GC semantics. */
|
|
|
575 current_dir = current_buffer->directory;
|
|
|
576 current_dir = Funhandled_file_name_directory (current_dir);
|
|
|
577 current_dir = expand_and_dir_to_file (current_dir, Qnil);
|
|
|
578
|
|
|
579 #if 0 /* This loser breaks ange-ftp */
|
|
|
580 /* dmoore - if you re-enable this code, you have to gcprotect
|
|
|
581 current_buffer through the above calls. */
|
|
|
582 if (NILP (Ffile_accessible_directory_p (current_dir)))
|
|
|
583 report_file_error ("Setting current directory",
|
|
|
584 list1 (current_buffer->directory));
|
|
|
585 #endif /* 0 */
|
|
|
586
|
|
|
587 /* If program file name is not absolute, search our path for it */
|
|
|
588 if (!IS_DIRECTORY_SEP (XSTRING_BYTE (program, 0))
|
|
|
589 && !(XSTRING_LENGTH (program) > 1
|
|
|
590 && IS_DEVICE_SEP (XSTRING_BYTE (program, 1))))
|
|
|
591 {
|
|
|
592 struct gcpro ngcpro1;
|
|
|
593
|
|
|
594 tem = Qnil;
|
|
|
595 NGCPRO1 (tem);
|
|
|
596 locate_file (Vexec_path, program, Vlisp_EXEC_SUFFIXES, &tem, X_OK);
|
|
|
597 if (NILP (tem))
|
|
|
598 report_file_error ("Searching for program", list1 (program));
|
|
|
599 program = Fexpand_file_name (tem, Qnil);
|
|
|
600 NUNGCPRO;
|
|
|
601 }
|
|
|
602 else
|
|
|
603 {
|
|
|
604 if (!NILP (Ffile_directory_p (program)))
|
|
|
605 error ("Specified program for new process is a directory");
|
|
|
606 }
|
|
|
607
|
|
|
608 proc = make_process_internal (name);
|
|
|
609
|
|
|
610 XPROCESS (proc)->buffer = buffer;
|
|
|
611 XPROCESS (proc)->command = Flist (nargs - 2,
|
|
|
612 args + 2);
|
|
|
613
|
|
|
614 /* Make the process marker point into the process buffer (if any). */
|
|
|
615 if (!NILP (buffer))
|
|
|
616 Fset_marker (XPROCESS (proc)->mark,
|
|
|
617 make_int (BUF_ZV (XBUFFER (buffer))), buffer);
|
|
|
618
|
|
|
619 /* If an error occurs and we can't start the process, we want to
|
|
|
620 remove it from the process list. This means that each error
|
|
|
621 check in create_process doesn't need to call remove_process
|
|
|
622 itself; it's all taken care of here. */
|
|
|
623 record_unwind_protect (start_process_unwind, proc);
|
|
|
624
|
|
|
625 create_process (proc, args + 3, nargs - 3, program, current_dir);
|
|
|
626
|
|
|
627 UNGCPRO;
|
|
|
628 return unbind_to (speccount, proc);
|
|
|
629 }
|
|
|
630
|
|
|
631
|
|
|
632 #ifdef HAVE_SOCKETS
|
|
|
633
|
|
|
634
|
|
|
635 /* #### The network support is fairly synthetical. What we actually
|
|
|
636 need is a single function, which supports all datagram, stream and
|
|
|
637 packet stream connections, arbitrary protocol families should they
|
|
|
638 be supported by the target system, multicast groups, in both data
|
|
|
639 and control rooted/nonrooted flavors, service quality etc whatever
|
|
|
640 is supported by the underlying network.
|
|
|
641
|
|
|
642 It must accept a property list describing the connection. The current
|
|
|
643 functions must then go to lisp and provide a suitable list for the
|
|
|
644 generalized connection function.
|
|
|
645
|
|
|
646 Both UNIX and Win32 support BSD sockets, and there are many extensions
|
|
|
647 available (Sockets 2 spec).
|
|
|
648
|
|
|
649 A todo is define a consistent set of properties abstracting a
|
|
|
650 network connection. -kkm
|
|
|
651 */
|
|
|
652
|
|
|
653
|
|
|
654 /* open a TCP network connection to a given HOST/SERVICE. Treated
|
|
|
655 exactly like a normal process when reading and writing. Only
|
|
|
656 differences are in status display and process deletion. A network
|
|
|
657 connection has no PID; you cannot signal it. All you can do is
|
|
|
658 deactivate and close it via delete-process */
|
|
|
659
|
|
|
660 DEFUN ("open-network-stream-internal", Fopen_network_stream_internal, 4, 5, 0, /*
|
|
|
661 Open a TCP connection for a service to a host.
|
|
|
662 Return a subprocess-object to represent the connection.
|
|
|
663 Input and output work as for subprocesses; `delete-process' closes it.
|
|
|
664
|
|
|
665 NAME is name for process. It is modified if necessary to make it unique.
|
|
|
666 BUFFER is the buffer (or buffer-name) to associate with the process.
|
|
|
667 Process output goes at end of that buffer, unless you specify
|
|
|
668 an output stream or filter function to handle the output.
|
|
|
669 BUFFER may also be nil, meaning that this process is not associated
|
|
|
670 with any buffer.
|
|
|
671 Third arg is name of the host to connect to, or its IP address.
|
|
|
672 Fourth arg SERVICE is name of the service desired, or an integer
|
|
|
673 specifying a port number to connect to.
|
|
|
674 Fifth argument PROTOCOL is a network protocol. Currently 'tcp
|
|
|
675 (Transmission Control Protocol) and 'udp (User Datagram Protocol) are
|
|
|
676 supported. When omitted, 'tcp is assumed.
|
|
|
677
|
|
|
678 Ouput via `process-send-string' and input via buffer or filter (see
|
|
|
679 `set-process-filter') are stream-oriented. That means UDP datagrams are
|
|
|
680 not guaranteed to be sent and received in discrete packets. (But small
|
|
|
681 datagrams around 500 bytes that are not truncated by `process-send-string'
|
|
|
682 are usually fine.) Note further that UDP protocol does not guard against
|
|
|
683 lost packets.
|
|
|
684 */
|
|
|
685 (name, buffer, host, service, protocol))
|
|
|
686 {
|
|
|
687 /* !!#### This function has not been Mule-ized */
|
|
|
688 /* This function can GC */
|
|
|
689 Lisp_Object proc = Qnil;
|
|
|
690 struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, ngcpro1;
|
|
|
691 void *inch, *outch;
|
|
|
692
|
|
|
693 GCPRO5 (name, buffer, host, service, protocol);
|
|
|
694 CHECK_STRING (name);
|
|
|
695
|
|
|
696 if (NILP(protocol))
|
|
|
697 protocol = Qtcp;
|
|
|
698 else
|
|
|
699 CHECK_SYMBOL (protocol);
|
|
|
700
|
|
|
701 /* Since this code is inside HAVE_SOCKETS, existence of
|
|
|
702 open_network_stream is mandatory */
|
|
|
703 PROCMETH (open_network_stream, (name, host, service, protocol,
|
|
|
704 &inch, &outch));
|
|
|
705
|
|
|
706 if (!NILP (buffer))
|
|
|
707 buffer = Fget_buffer_create (buffer);
|
|
|
708 proc = make_process_internal (name);
|
|
|
709 NGCPRO1 (proc);
|
|
|
710
|
|
|
711 XPROCESS (proc)->pid = Fcons (service, host);
|
|
|
712 XPROCESS (proc)->buffer = buffer;
|
|
|
713 init_process_io_handles (XPROCESS (proc), (void*)inch, (void*)outch,
|
|
|
714 STREAM_NETWORK_CONNECTION);
|
|
|
715
|
|
|
716 event_stream_select_process (XPROCESS (proc));
|
|
|
717
|
|
|
718 UNGCPRO;
|
|
|
719 NUNGCPRO;
|
|
|
720 return proc;
|
|
|
721 }
|
|
|
722
|
|
|
723 #ifdef HAVE_MULTICAST
|
|
|
724
|
|
|
725 DEFUN ("open-multicast-group-internal", Fopen_multicast_group_internal, 5, 5, 0, /*
|
|
|
726 Open a multicast connection on the specified dest/port/ttl.
|
|
|
727 Return a subprocess-object to represent the connection.
|
|
|
728 Input and output work as for subprocesses; `delete-process' closes it.
|
|
|
729
|
|
|
730 NAME is name for process. It is modified if necessary to make it unique.
|
|
|
731 BUFFER is the buffer (or buffer-name) to associate with the process.
|
|
|
732 Process output goes at end of that buffer, unless you specify
|
|
|
733 an output stream or filter function to handle the output.
|
|
|
734 BUFFER may also be nil, meaning that this process is not associated
|
|
|
735 with any buffer.
|
|
|
736 Third, fourth and fifth args are the multicast destination group, port and ttl.
|
|
|
737 dest must be an internet address between 224.0.0.0 and 239.255.255.255
|
|
|
738 port is a communication port like in traditional unicast
|
|
|
739 ttl is the time-to-live (15 for site, 63 for region and 127 for world)
|
|
|
740 */
|
|
|
741 (name, buffer, dest, port, ttl))
|
|
|
742 {
|
|
|
743 /* !!#### This function has not been Mule-ized */
|
|
|
744 /* This function can GC */
|
|
|
745 Lisp_Object proc = Qnil;
|
|
|
746 struct gcpro gcpro1;
|
|
|
747 void *inch, *outch;
|
|
|
748
|
|
|
749 CHECK_STRING (name);
|
|
|
750
|
|
|
751 /* Since this code is inside HAVE_MULTICAST, existence of
|
|
|
752 open_network_stream is mandatory */
|
|
|
753 PROCMETH (open_multicast_group, (name, dest, port, ttl,
|
|
|
754 &inch, &outch));
|
|
|
755
|
|
|
756 if (!NILP (buffer))
|
|
|
757 buffer = Fget_buffer_create (buffer);
|
|
|
758
|
|
|
759 proc = make_process_internal (name);
|
|
|
760 GCPRO1 (proc);
|
|
|
761
|
|
|
762 XPROCESS (proc)->pid = Fcons (port, dest);
|
|
|
763 XPROCESS (proc)->buffer = buffer;
|
|
|
764 init_process_io_handles (XPROCESS (proc), (void*)inch, (void*)outch,
|
|
|
765 STREAM_NETWORK_CONNECTION);
|
|
|
766
|
|
|
767 event_stream_select_process (XPROCESS (proc));
|
|
|
768
|
|
|
769 UNGCPRO;
|
|
|
770 return proc;
|
|
|
771 }
|
|
|
772 #endif /* HAVE_MULTICAST */
|
|
|
773
|
|
|
774 #endif /* HAVE_SOCKETS */
|
|
|
775
|
|
|
776 Lisp_Object
|
|
|
777 canonicalize_host_name (Lisp_Object host)
|
|
|
778 {
|
|
|
779 return PROCMETH_OR_GIVEN (canonicalize_host_name, (host), host);
|
|
|
780 }
|
|
|
781
|
|
|
782
|
|
|
783 DEFUN ("set-process-window-size", Fset_process_window_size, 3, 3, 0, /*
|
|
|
784 Tell PROCESS that it has logical window size HEIGHT and WIDTH.
|
|
|
785 */
|
|
|
786 (proc, height, width))
|
|
|
787 {
|
|
|
788 CHECK_PROCESS (proc);
|
|
|
789 CHECK_NATNUM (height);
|
|
|
790 CHECK_NATNUM (width);
|
|
|
791 return
|
|
|
792 MAYBE_INT_PROCMETH (set_window_size, (XPROCESS (proc), XINT (height), XINT (width))) <= 0
|
|
|
793 ? Qnil : Qt;
|
|
|
794 }
|
|
|
795
|
|
|
796
|
|
|
797 /************************************************************************/
|
|
|
798 /* Process I/O */
|
|
|
799 /************************************************************************/
|
|
|
800
|
|
|
801 /* Read pending output from the process channel,
|
|
|
802 starting with our buffered-ahead character if we have one.
|
|
|
803 Yield number of characters read.
|
|
|
804
|
|
|
805 This function reads at most 1024 bytes.
|
|
|
806 If you want to read all available subprocess output,
|
|
|
807 you must call it repeatedly until it returns zero. */
|
|
|
808
|
|
|
809 Charcount
|
|
|
810 read_process_output (Lisp_Object proc)
|
|
|
811 {
|
|
|
812 /* This function can GC */
|
|
|
813 Bytecount nbytes, nchars;
|
|
|
814 Bufbyte chars[1024];
|
|
|
815 Lisp_Object outstream;
|
|
|
816 struct Lisp_Process *p = XPROCESS (proc);
|
|
|
817
|
|
|
818 /* If there is a lot of output from the subprocess, the loop in
|
|
|
819 execute_internal_event() might call read_process_output() more
|
|
|
820 than once. If the filter that was executed from one of these
|
|
|
821 calls set the filter to t, we have to stop now. Return -1 rather
|
|
|
822 than 0 so execute_internal_event() doesn't close the process.
|
|
|
823 Really, the loop in execute_internal_event() should check itself
|
|
|
824 for a process-filter change, like in status_notify(); but the
|
|
|
825 struct Lisp_Process is not exported outside of this file. */
|
|
|
826 if (NILP(p->pipe_instream))
|
|
|
827 return -1; /* already closed */
|
|
|
828
|
|
|
829 if (!NILP (p->filter) && (p->filter_does_read))
|
|
|
830 {
|
|
|
831 Lisp_Object filter_result;
|
|
|
832
|
|
|
833 /* Some weird FSFmacs crap here with
|
|
|
834 Vdeactivate_mark and current_buffer->keymap */
|
|
|
835 running_asynch_code = 1;
|
|
|
836 filter_result = call2_trapping_errors ("Error in process filter",
|
|
|
837 p->filter, proc, Qnil);
|
|
|
838 running_asynch_code = 0;
|
|
|
839 restore_match_data ();
|
|
|
840 CHECK_INT (filter_result);
|
|
|
841 return XINT (filter_result);
|
|
|
842 }
|
|
|
843
|
|
|
844 nbytes = Lstream_read (XLSTREAM (DATA_INSTREAM(p)), chars, sizeof (chars));
|
|
|
845 if (nbytes <= 0) return nbytes;
|
|
|
846
|
|
|
847 nchars = bytecount_to_charcount (chars, nbytes);
|
|
|
848 outstream = p->filter;
|
|
|
849 if (!NILP (outstream))
|
|
|
850 {
|
|
|
851 /* We used to bind inhibit-quit to t here, but
|
|
|
852 call2_trapping_errors() does that for us. */
|
|
|
853 running_asynch_code = 1;
|
|
|
854 call2_trapping_errors ("Error in process filter",
|
|
|
855 outstream, proc, make_string (chars, nbytes));
|
|
|
856 running_asynch_code = 0;
|
|
|
857 restore_match_data ();
|
|
|
858 return nchars;
|
|
|
859 }
|
|
|
860
|
|
|
861 /* If no filter, write into buffer if it isn't dead. */
|
|
|
862 if (!NILP (p->buffer) && BUFFER_LIVE_P (XBUFFER (p->buffer)))
|
|
|
863 {
|
|
|
864 Lisp_Object old_read_only = Qnil;
|
|
|
865 Bufpos old_point;
|
|
|
866 Bufpos old_begv;
|
|
|
867 Bufpos old_zv;
|
|
|
868 int old_zmacs_region_stays = zmacs_region_stays;
|
|
|
869 struct gcpro gcpro1, gcpro2;
|
|
|
870 struct buffer *buf = XBUFFER (p->buffer);
|
|
|
871
|
|
|
872 GCPRO2 (proc, old_read_only);
|
|
|
873
|
|
|
874 old_point = BUF_PT (buf);
|
|
|
875 old_begv = BUF_BEGV (buf);
|
|
|
876 old_zv = BUF_ZV (buf);
|
|
|
877 old_read_only = buf->read_only;
|
|
|
878 buf->read_only = Qnil;
|
|
|
879
|
|
|
880 /* Insert new output into buffer
|
|
|
881 at the current end-of-output marker,
|
|
|
882 thus preserving logical ordering of input and output. */
|
|
|
883 if (XMARKER (p->mark)->buffer)
|
|
|
884 BUF_SET_PT (buf,
|
|
|
885 bufpos_clip_to_bounds (old_begv, marker_position (p->mark),
|
|
|
886 old_zv));
|
|
|
887 else
|
|
|
888 BUF_SET_PT (buf, old_zv);
|
|
|
889
|
|
|
890 /* If the output marker is outside of the visible region, save
|
|
|
891 the restriction and widen. */
|
|
|
892 if (! (BUF_BEGV (buf) <= BUF_PT (buf) &&
|
|
|
893 BUF_PT (buf) <= BUF_ZV (buf)))
|
|
|
894 Fwiden (p->buffer);
|
|
|
895
|
|
|
896 /* Make sure opoint floats ahead of any new text, just as point
|
|
|
897 would. */
|
|
|
898 if (BUF_PT (buf) <= old_point)
|
|
|
899 old_point += nchars;
|
|
|
900
|
|
|
901 /* Insert after old_begv, but before old_zv. */
|
|
|
902 if (BUF_PT (buf) < old_begv)
|
|
|
903 old_begv += nchars;
|
|
|
904 if (BUF_PT (buf) <= old_zv)
|
|
|
905 old_zv += nchars;
|
|
|
906
|
|
|
907 #if 0
|
|
|
908 /* This screws up initial display of the window. jla */
|
|
|
909
|
|
|
910 /* Insert before markers in case we are inserting where
|
|
|
911 the buffer's mark is, and the user's next command is Meta-y. */
|
|
|
912 buffer_insert_raw_string_1 (buf, -1, chars,
|
|
|
913 nbytes, INSDEL_BEFORE_MARKERS);
|
|
|
914 #else
|
|
|
915 buffer_insert_raw_string (buf, chars, nbytes);
|
|
|
916 #endif
|
|
|
917
|
|
|
918 Fset_marker (p->mark, make_int (BUF_PT (buf)), p->buffer);
|
|
|
919
|
|
|
920 MARK_MODELINE_CHANGED;
|
|
|
921
|
|
|
922 /* If the restriction isn't what it should be, set it. */
|
|
|
923 if (old_begv != BUF_BEGV (buf) || old_zv != BUF_ZV (buf))
|
|
|
924 {
|
|
|
925 Fwiden(p->buffer);
|
|
|
926 old_begv = bufpos_clip_to_bounds (BUF_BEG (buf),
|
|
|
927 old_begv,
|
|
|
928 BUF_Z (buf));
|
|
|
929 old_zv = bufpos_clip_to_bounds (BUF_BEG (buf),
|
|
|
930 old_zv,
|
|
|
931 BUF_Z (buf));
|
|
|
932 Fnarrow_to_region (make_int (old_begv), make_int (old_zv),
|
|
|
933 p->buffer);
|
|
|
934 }
|
|
|
935
|
|
|
936 /* Handling the process output should not deactivate the mark. */
|
|
|
937 zmacs_region_stays = old_zmacs_region_stays;
|
|
|
938 buf->read_only = old_read_only;
|
|
|
939 old_point = bufpos_clip_to_bounds (BUF_BEGV (buf),
|
|
|
940 old_point,
|
|
|
941 BUF_ZV (buf));
|
|
|
942 BUF_SET_PT (buf, old_point);
|
|
|
943
|
|
|
944 UNGCPRO;
|
|
|
945 }
|
|
|
946 return nchars;
|
|
|
947 }
|
|
|
948
|
|
|
949 /* Sending data to subprocess */
|
|
|
950
|
|
|
951 /* send some data to process PROC. If NONRELOCATABLE is non-NULL, it
|
|
|
952 specifies the address of the data. Otherwise, the data comes from the
|
|
|
953 object RELOCATABLE (either a string or a buffer). START and LEN
|
|
|
954 specify the offset and length of the data to send.
|
|
|
955
|
|
|
956 Note that START and LEN are in Bufpos's if RELOCATABLE is a buffer,
|
|
|
957 and in Bytecounts otherwise. */
|
|
|
958
|
|
|
959 void
|
|
|
960 send_process (Lisp_Object proc,
|
|
|
961 Lisp_Object relocatable, CONST Bufbyte *nonrelocatable,
|
|
|
962 int start, int len)
|
|
|
963 {
|
|
|
964 /* This function can GC */
|
|
|
965 struct gcpro gcpro1, gcpro2;
|
|
|
966 Lisp_Object lstream = Qnil;
|
|
|
967
|
|
|
968 GCPRO2 (proc, lstream);
|
|
|
969
|
|
|
970 if (NILP (DATA_OUTSTREAM (XPROCESS (proc))))
|
|
|
971 signal_simple_error ("Process not open for writing", proc);
|
|
|
972
|
|
|
973 if (nonrelocatable)
|
|
|
974 lstream =
|
|
|
975 make_fixed_buffer_input_stream (nonrelocatable + start, len);
|
|
|
976 else if (BUFFERP (relocatable))
|
|
|
977 lstream = make_lisp_buffer_input_stream (XBUFFER (relocatable),
|
|
|
978 start, start + len, 0);
|
|
|
979 else
|
|
|
980 lstream = make_lisp_string_input_stream (relocatable, start, len);
|
|
|
981
|
|
|
982 PROCMETH (send_process, (proc, XLSTREAM (lstream)));
|
|
|
983
|
|
|
984 UNGCPRO;
|
|
|
985 Lstream_delete (XLSTREAM (lstream));
|
|
|
986 }
|
|
|
987
|
|
|
988 DEFUN ("process-tty-name", Fprocess_tty_name, 1, 1, 0, /*
|
|
|
989 Return the name of the terminal PROCESS uses, or nil if none.
|
|
|
990 This is the terminal that the process itself reads and writes on,
|
|
|
991 not the name of the pty that Emacs uses to talk with that terminal.
|
|
|
992 */
|
|
|
993 (proc))
|
|
|
994 {
|
|
|
995 CHECK_PROCESS (proc);
|
|
|
996 return MAYBE_LISP_PROCMETH (get_tty_name, (XPROCESS (proc)));
|
|
|
997 }
|
|
|
998
|
|
|
999 DEFUN ("set-process-buffer", Fset_process_buffer, 2, 2, 0, /*
|
|
|
1000 Set buffer associated with PROCESS to BUFFER (a buffer, or nil).
|
|
|
1001 */
|
|
|
1002 (proc, buffer))
|
|
|
1003 {
|
|
|
1004 CHECK_PROCESS (proc);
|
|
|
1005 if (!NILP (buffer))
|
|
|
1006 CHECK_BUFFER (buffer);
|
|
|
1007 XPROCESS (proc)->buffer = buffer;
|
|
|
1008 return buffer;
|
|
|
1009 }
|
|
|
1010
|
|
|
1011 DEFUN ("process-buffer", Fprocess_buffer, 1, 1, 0, /*
|
|
|
1012 Return the buffer PROCESS is associated with.
|
|
|
1013 Output from PROCESS is inserted in this buffer
|
|
|
1014 unless PROCESS has a filter.
|
|
|
1015 */
|
|
|
1016 (proc))
|
|
|
1017 {
|
|
|
1018 CHECK_PROCESS (proc);
|
|
|
1019 return XPROCESS (proc)->buffer;
|
|
|
1020 }
|
|
|
1021
|
|
|
1022 DEFUN ("process-mark", Fprocess_mark, 1, 1, 0, /*
|
|
|
1023 Return the marker for the end of the last output from PROCESS.
|
|
|
1024 */
|
|
|
1025 (proc))
|
|
|
1026 {
|
|
|
1027 CHECK_PROCESS (proc);
|
|
|
1028 return XPROCESS (proc)->mark;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 void
|
|
|
1032 set_process_filter (Lisp_Object proc, Lisp_Object filter, int filter_does_read)
|
|
|
1033 {
|
|
|
1034 CHECK_PROCESS (proc);
|
|
|
1035 if (PROCESS_LIVE_P (proc)) {
|
|
|
1036 if (EQ (filter, Qt))
|
|
|
1037 event_stream_unselect_process (XPROCESS (proc));
|
|
|
1038 else
|
|
|
1039 event_stream_select_process (XPROCESS (proc));
|
|
|
1040 }
|
|
|
1041
|
|
|
1042 XPROCESS (proc)->filter = filter;
|
|
|
1043 XPROCESS (proc)->filter_does_read = filter_does_read;
|
|
|
1044 }
|
|
|
1045
|
|
|
1046 DEFUN ("set-process-filter", Fset_process_filter, 2, 2, 0, /*
|
|
|
1047 Give PROCESS the filter function FILTER; nil means no filter.
|
|
|
1048 t means stop accepting output from the process.
|
|
|
1049 When a process has a filter, each time it does output
|
|
|
1050 the entire string of output is passed to the filter.
|
|
|
1051 The filter gets two arguments: the process and the string of output.
|
|
|
1052 If the process has a filter, its buffer is not used for output.
|
|
|
1053 */
|
|
|
1054 (proc, filter))
|
|
|
1055 {
|
|
|
1056 set_process_filter (proc, filter, 0);
|
|
|
1057 return filter;
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 DEFUN ("process-filter", Fprocess_filter, 1, 1, 0, /*
|
|
|
1061 Return the filter function of PROCESS; nil if none.
|
|
|
1062 See `set-process-filter' for more info on filter functions.
|
|
|
1063 */
|
|
|
1064 (proc))
|
|
|
1065 {
|
|
|
1066 CHECK_PROCESS (proc);
|
|
|
1067 return XPROCESS (proc)->filter;
|
|
|
1068 }
|
|
|
1069
|
|
|
1070 DEFUN ("process-send-region", Fprocess_send_region, 3, 3, 0, /*
|
|
|
1071 Send current contents of region as input to PROCESS.
|
|
|
1072 PROCESS may be a process name or an actual process.
|
|
|
1073 Called from program, takes three arguments, PROCESS, START and END.
|
|
|
1074 If the region is more than 500 or so characters long,
|
|
|
1075 it is sent in several bunches. This may happen even for shorter regions.
|
|
|
1076 Output from processes can arrive in between bunches.
|
|
|
1077 */
|
|
|
1078 (process, start, end))
|
|
|
1079 {
|
|
|
1080 /* This function can GC */
|
|
|
1081 Lisp_Object proc = get_process (process);
|
|
|
1082 Bufpos st, en;
|
|
|
1083
|
|
|
1084 get_buffer_range_char (current_buffer, start, end, &st, &en, 0);
|
|
|
1085
|
|
|
1086 send_process (proc, Fcurrent_buffer (), 0,
|
|
|
1087 st, en - st);
|
|
|
1088 return Qnil;
|
|
|
1089 }
|
|
|
1090
|
|
|
1091 DEFUN ("process-send-string", Fprocess_send_string, 2, 4, 0, /*
|
|
|
1092 Send PROCESS the contents of STRING as input.
|
|
|
1093 PROCESS may be a process name or an actual process.
|
|
|
1094 Optional arguments FROM and TO specify part of STRING, see `substring'.
|
|
|
1095 If STRING is more than 500 or so characters long,
|
|
|
1096 it is sent in several bunches. This may happen even for shorter strings.
|
|
|
1097 Output from processes can arrive in between bunches.
|
|
|
1098 */
|
|
|
1099 (process, string, from, to))
|
|
|
1100 {
|
|
|
1101 /* This function can GC */
|
|
|
1102 Lisp_Object proc;
|
|
|
1103 Bytecount len;
|
|
|
1104 Bytecount bfr, bto;
|
|
|
1105
|
|
|
1106 proc = get_process (process);
|
|
|
1107 CHECK_STRING (string);
|
|
|
1108 get_string_range_byte (string, from, to, &bfr, &bto,
|
|
|
1109 GB_HISTORICAL_STRING_BEHAVIOR);
|
|
|
1110 len = bto - bfr;
|
|
|
1111
|
|
|
1112 send_process (proc, string, 0, bfr, len);
|
|
|
1113 return Qnil;
|
|
|
1114 }
|
|
|
1115
|
|
|
1116 #ifdef FILE_CODING
|
|
|
1117
|
|
|
1118 DEFUN ("process-input-coding-system", Fprocess_input_coding_system, 1, 1, 0, /*
|
|
|
1119 Return PROCESS's input coding system.
|
|
|
1120 */
|
|
|
1121 (process))
|
|
|
1122 {
|
|
|
1123 process = get_process (process);
|
|
|
1124 return decoding_stream_coding_system (XLSTREAM (XPROCESS (process)->coding_instream) );
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 DEFUN ("process-output-coding-system", Fprocess_output_coding_system, 1, 1, 0, /*
|
|
|
1128 Return PROCESS's output coding system.
|
|
|
1129 */
|
|
|
1130 (process))
|
|
|
1131 {
|
|
|
1132 process = get_process (process);
|
|
|
1133 return encoding_stream_coding_system (XLSTREAM (XPROCESS (process)->coding_outstream));
|
|
|
1134 }
|
|
|
1135
|
|
|
1136 DEFUN ("process-coding-system", Fprocess_coding_system, 1, 1, 0, /*
|
|
|
1137 Return a pair of coding-system for decoding and encoding of PROCESS.
|
|
|
1138 */
|
|
|
1139 (process))
|
|
|
1140 {
|
|
|
1141 process = get_process (process);
|
|
|
1142 return Fcons (decoding_stream_coding_system
|
|
|
1143 (XLSTREAM (XPROCESS (process)->coding_instream)),
|
|
|
1144 encoding_stream_coding_system
|
|
|
1145 (XLSTREAM (XPROCESS (process)->coding_outstream)));
|
|
|
1146 }
|
|
|
1147
|
|
|
1148 DEFUN ("set-process-input-coding-system", Fset_process_input_coding_system,
|
|
|
1149 2, 2, 0, /*
|
|
|
1150 Set PROCESS's input coding system to CODESYS.
|
|
|
1151 */
|
|
|
1152 (process, codesys))
|
|
|
1153 {
|
|
|
1154 codesys = Fget_coding_system (codesys);
|
|
|
1155 process = get_process (process);
|
|
|
1156 set_decoding_stream_coding_system
|
|
|
1157 (XLSTREAM (XPROCESS (process)->coding_instream), codesys);
|
|
|
1158 return Qnil;
|
|
|
1159 }
|
|
|
1160
|
|
|
1161 DEFUN ("set-process-output-coding-system", Fset_process_output_coding_system,
|
|
|
1162 2, 2, 0, /*
|
|
|
1163 Set PROCESS's output coding system to CODESYS.
|
|
|
1164 */
|
|
|
1165 (process, codesys))
|
|
|
1166 {
|
|
|
1167 codesys = Fget_coding_system (codesys);
|
|
|
1168 process = get_process (process);
|
|
|
1169 set_encoding_stream_coding_system
|
|
|
1170 (XLSTREAM (XPROCESS (process)->coding_outstream), codesys);
|
|
|
1171 return Qnil;
|
|
|
1172 }
|
|
|
1173
|
|
|
1174 DEFUN ("set-process-coding-system", Fset_process_coding_system,
|
|
|
1175 1, 3, 0, /*
|
|
|
1176 Set coding-systems of PROCESS to DECODING and ENCODING.
|
|
|
1177 */
|
|
|
1178 (process, decoding, encoding))
|
|
|
1179 {
|
|
|
1180 if (!NILP (decoding))
|
|
|
1181 Fset_process_input_coding_system (process, decoding);
|
|
|
1182
|
|
|
1183 if (!NILP (encoding))
|
|
|
1184 Fset_process_output_coding_system (process, encoding);
|
|
|
1185
|
|
|
1186 return Qnil;
|
|
|
1187 }
|
|
|
1188
|
|
|
1189 #endif /* FILE_CODING */
|
|
|
1190
|
|
|
1191 /************************************************************************/
|
|
|
1192 /* process status */
|
|
|
1193 /************************************************************************/
|
|
|
1194
|
|
|
1195 static Lisp_Object
|
|
|
1196 exec_sentinel_unwind (Lisp_Object datum)
|
|
|
1197 {
|
|
|
1198 struct Lisp_Cons *d = XCONS (datum);
|
|
|
1199 XPROCESS (d->car)->sentinel = d->cdr;
|
|
|
1200 free_cons (d);
|
|
|
1201 return Qnil;
|
|
|
1202 }
|
|
|
1203
|
|
|
1204 static void
|
|
|
1205 exec_sentinel (Lisp_Object proc, Lisp_Object reason)
|
|
|
1206 {
|
|
|
1207 /* This function can GC */
|
|
|
1208 int speccount = specpdl_depth ();
|
|
|
1209 struct Lisp_Process *p = XPROCESS (proc);
|
|
|
1210 Lisp_Object sentinel = p->sentinel;
|
|
|
1211
|
|
|
1212 if (NILP (sentinel))
|
|
|
1213 return;
|
|
|
1214
|
|
|
1215 /* Some weird FSFmacs crap here with
|
|
|
1216 Vdeactivate_mark and current_buffer->keymap */
|
|
|
1217
|
|
|
1218 /* Zilch the sentinel while it's running, to avoid recursive invocations;
|
|
|
1219 assure that it gets restored no matter how the sentinel exits. */
|
|
|
1220 p->sentinel = Qnil;
|
|
|
1221 record_unwind_protect (exec_sentinel_unwind, noseeum_cons (proc, sentinel));
|
|
|
1222 /* We used to bind inhibit-quit to t here, but call2_trapping_errors()
|
|
|
1223 does that for us. */
|
|
|
1224 running_asynch_code = 1;
|
|
|
1225 call2_trapping_errors ("Error in process sentinel", sentinel, proc, reason);
|
|
|
1226 running_asynch_code = 0;
|
|
|
1227 restore_match_data ();
|
|
|
1228 unbind_to (speccount, Qnil);
|
|
|
1229 }
|
|
|
1230
|
|
|
1231 DEFUN ("set-process-sentinel", Fset_process_sentinel, 2, 2, 0, /*
|
|
|
1232 Give PROCESS the sentinel SENTINEL; nil for none.
|
|
|
1233 The sentinel is called as a function when the process changes state.
|
|
|
1234 It gets two arguments: the process, and a string describing the change.
|
|
|
1235 */
|
|
|
1236 (proc, sentinel))
|
|
|
1237 {
|
|
|
1238 CHECK_PROCESS (proc);
|
|
|
1239 XPROCESS (proc)->sentinel = sentinel;
|
|
|
1240 return sentinel;
|
|
|
1241 }
|
|
|
1242
|
|
|
1243 DEFUN ("process-sentinel", Fprocess_sentinel, 1, 1, 0, /*
|
|
|
1244 Return the sentinel of PROCESS; nil if none.
|
|
|
1245 See `set-process-sentinel' for more info on sentinels.
|
|
|
1246 */
|
|
|
1247 (proc))
|
|
|
1248 {
|
|
|
1249 CHECK_PROCESS (proc);
|
|
|
1250 return XPROCESS (proc)->sentinel;
|
|
|
1251 }
|
|
|
1252
|
|
|
1253
|
|
|
1254 CONST char *
|
|
|
1255 signal_name (int signum)
|
|
|
1256 {
|
|
|
1257 if (signum >= 0 && signum < NSIG)
|
|
|
1258 return (CONST char *) sys_siglist[signum];
|
|
|
1259
|
|
|
1260 return (CONST char *) GETTEXT ("unknown signal");
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 void
|
|
|
1264 update_process_status (Lisp_Object p,
|
|
|
1265 Lisp_Object status_symbol,
|
|
|
1266 int exit_code,
|
|
|
1267 int core_dumped)
|
|
|
1268 {
|
|
|
1269 XPROCESS (p)->tick++;
|
|
|
1270 process_tick++;
|
|
|
1271 XPROCESS (p)->status_symbol = status_symbol;
|
|
|
1272 XPROCESS (p)->exit_code = exit_code;
|
|
|
1273 XPROCESS (p)->core_dumped = core_dumped;
|
|
|
1274 }
|
|
|
1275
|
|
|
1276 /* Return a string describing a process status list. */
|
|
|
1277
|
|
|
1278 static Lisp_Object
|
|
|
1279 status_message (struct Lisp_Process *p)
|
|
|
1280 {
|
|
|
1281 Lisp_Object symbol = p->status_symbol;
|
|
|
1282 int code = p->exit_code;
|
|
|
1283 int coredump = p->core_dumped;
|
|
|
1284 Lisp_Object string, string2;
|
|
|
1285
|
|
|
1286 if (EQ (symbol, Qsignal) || EQ (symbol, Qstop))
|
|
|
1287 {
|
|
|
1288 string = build_string (signal_name (code));
|
|
|
1289 if (coredump)
|
|
|
1290 string2 = build_translated_string (" (core dumped)\n");
|
|
|
1291 else
|
|
|
1292 string2 = build_string ("\n");
|
|
|
1293 set_string_char (XSTRING (string), 0,
|
|
|
1294 DOWNCASE (current_buffer,
|
|
|
1295 string_char (XSTRING (string), 0)));
|
|
|
1296 return concat2 (string, string2);
|
|
|
1297 }
|
|
|
1298 else if (EQ (symbol, Qexit))
|
|
|
1299 {
|
|
|
1300 if (code == 0)
|
|
|
1301 return build_translated_string ("finished\n");
|
|
|
1302 string = Fnumber_to_string (make_int (code));
|
|
|
1303 if (coredump)
|
|
|
1304 string2 = build_translated_string (" (core dumped)\n");
|
|
|
1305 else
|
|
|
1306 string2 = build_string ("\n");
|
|
|
1307 return concat2 (build_translated_string ("exited abnormally with code "),
|
|
|
1308 concat2 (string, string2));
|
|
|
1309 }
|
|
|
1310 else
|
|
|
1311 return Fcopy_sequence (Fsymbol_name (symbol));
|
|
|
1312 }
|
|
|
1313
|
|
|
1314 /* Tell status_notify() to check for terminated processes. We do this
|
|
|
1315 because on some systems we sometimes miss SIGCHLD calls. (Not sure
|
|
|
1316 why.) */
|
|
|
1317
|
|
|
1318 void
|
|
|
1319 kick_status_notify (void)
|
|
|
1320 {
|
|
|
1321 process_tick++;
|
|
|
1322 }
|
|
|
1323
|
|
|
1324
|
|
|
1325 /* Report all recent events of a change in process status
|
|
|
1326 (either run the sentinel or output a message).
|
|
|
1327 This is done while Emacs is waiting for keyboard input. */
|
|
|
1328
|
|
|
1329 void
|
|
|
1330 status_notify (void)
|
|
|
1331 {
|
|
|
1332 /* This function can GC */
|
|
|
1333 Lisp_Object tail = Qnil;
|
|
|
1334 Lisp_Object symbol = Qnil;
|
|
|
1335 Lisp_Object msg = Qnil;
|
|
|
1336 struct gcpro gcpro1, gcpro2, gcpro3;
|
|
|
1337 /* process_tick is volatile, so we have to remember it now.
|
|
|
1338 Otherwise, we get a race condition is SIGCHLD happens during
|
|
|
1339 this function.
|
|
|
1340
|
|
|
1341 (Actually, this is not the case anymore. The code to
|
|
|
1342 update the process structures has been moved out of the
|
|
|
1343 SIGCHLD handler. But for the moment I'm leaving this
|
|
|
1344 stuff in -- it can't hurt.) */
|
|
|
1345 int temp_process_tick;
|
|
|
1346
|
|
|
1347 MAYBE_PROCMETH (reap_exited_processes, ());
|
|
|
1348
|
|
|
1349 temp_process_tick = process_tick;
|
|
|
1350
|
|
|
1351 if (update_tick == temp_process_tick)
|
|
|
1352 return;
|
|
|
1353
|
|
|
1354 /* We need to gcpro tail; if read_process_output calls a filter
|
|
|
1355 which deletes a process and removes the cons to which tail points
|
|
|
1356 from Vprocess_alist, and then causes a GC, tail is an unprotected
|
|
|
1357 reference. */
|
|
|
1358 GCPRO3 (tail, symbol, msg);
|
|
|
1359
|
|
|
1360 for (tail = Vprocess_list; CONSP (tail); tail = XCDR (tail))
|
|
|
1361 {
|
|
|
1362 Lisp_Object proc = XCAR (tail);
|
|
|
1363 struct Lisp_Process *p = XPROCESS (proc);
|
|
|
1364 /* p->tick is also volatile. Same thing as above applies. */
|
|
|
1365 int this_process_tick;
|
|
|
1366
|
|
|
1367 /* #### extra check for terminated processes, in case a SIGCHLD
|
|
|
1368 got missed (this seems to happen sometimes, I'm not sure why).
|
|
|
1369 */
|
|
|
1370 if (INTP (p->pid))
|
|
|
1371 MAYBE_PROCMETH (update_status_if_terminated, (p));
|
|
|
1372
|
|
|
1373 this_process_tick = p->tick;
|
|
|
1374 if (this_process_tick != p->update_tick)
|
|
|
1375 {
|
|
|
1376 p->update_tick = this_process_tick;
|
|
|
1377
|
|
|
1378 /* If process is still active, read any output that remains. */
|
|
|
1379 while (!EQ (p->filter, Qt)
|
|
|
1380 && read_process_output (proc) > 0)
|
|
|
1381 ;
|
|
|
1382
|
|
|
1383 /* Get the text to use for the message. */
|
|
|
1384 msg = status_message (p);
|
|
|
1385
|
|
|
1386 /* If process is terminated, deactivate it or delete it. */
|
|
|
1387 symbol = p->status_symbol;
|
|
|
1388
|
|
|
1389 if (EQ (symbol, Qsignal)
|
|
|
1390 || EQ (symbol, Qexit))
|
|
|
1391 {
|
|
|
1392 if (delete_exited_processes)
|
|
|
1393 remove_process (proc);
|
|
|
1394 else
|
|
|
1395 deactivate_process (proc);
|
|
|
1396 }
|
|
|
1397
|
|
|
1398 /* Now output the message suitably. */
|
|
|
1399 if (!NILP (p->sentinel))
|
|
|
1400 exec_sentinel (proc, msg);
|
|
|
1401 /* Don't bother with a message in the buffer
|
|
|
1402 when a process becomes runnable. */
|
|
|
1403 else if (!EQ (symbol, Qrun) && !NILP (p->buffer))
|
|
|
1404 {
|
|
|
1405 Lisp_Object old_read_only = Qnil;
|
|
|
1406 Lisp_Object old = Fcurrent_buffer ();
|
|
|
1407 Bufpos opoint;
|
|
|
1408 struct gcpro ngcpro1, ngcpro2;
|
|
|
1409
|
|
|
1410 /* Avoid error if buffer is deleted
|
|
|
1411 (probably that's why the process is dead, too) */
|
|
|
1412 if (!BUFFER_LIVE_P (XBUFFER (p->buffer)))
|
|
|
1413 continue;
|
|
|
1414
|
|
|
1415 NGCPRO2 (old, old_read_only);
|
|
|
1416 Fset_buffer (p->buffer);
|
|
|
1417 opoint = BUF_PT (current_buffer);
|
|
|
1418 /* Insert new output into buffer
|
|
|
1419 at the current end-of-output marker,
|
|
|
1420 thus preserving logical ordering of input and output. */
|
|
|
1421 if (XMARKER (p->mark)->buffer)
|
|
|
1422 BUF_SET_PT (current_buffer, marker_position (p->mark));
|
|
|
1423 else
|
|
|
1424 BUF_SET_PT (current_buffer, BUF_ZV (current_buffer));
|
|
|
1425 if (BUF_PT (current_buffer) <= opoint)
|
|
|
1426 opoint += (string_char_length (XSTRING (msg))
|
|
|
1427 + string_char_length (XSTRING (p->name))
|
|
|
1428 + 10);
|
|
|
1429
|
|
|
1430 old_read_only = current_buffer->read_only;
|
|
|
1431 current_buffer->read_only = Qnil;
|
|
|
1432 buffer_insert_c_string (current_buffer, "\nProcess ");
|
|
|
1433 Finsert (1, &p->name);
|
|
|
1434 buffer_insert_c_string (current_buffer, " ");
|
|
|
1435 Finsert (1, &msg);
|
|
|
1436 current_buffer->read_only = old_read_only;
|
|
|
1437 Fset_marker (p->mark, make_int (BUF_PT (current_buffer)),
|
|
|
1438 p->buffer);
|
|
|
1439
|
|
|
1440 opoint = bufpos_clip_to_bounds(BUF_BEGV (XBUFFER (p->buffer)),
|
|
|
1441 opoint,
|
|
|
1442 BUF_ZV (XBUFFER (p->buffer)));
|
|
|
1443 BUF_SET_PT (current_buffer, opoint);
|
|
|
1444 Fset_buffer (old);
|
|
|
1445 NUNGCPRO;
|
|
|
1446 }
|
|
|
1447 }
|
|
|
1448 } /* end for */
|
|
|
1449
|
|
|
1450 /* in case buffers use %s in modeline-format */
|
|
|
1451 MARK_MODELINE_CHANGED;
|
|
|
1452 redisplay ();
|
|
|
1453
|
|
|
1454 update_tick = temp_process_tick;
|
|
|
1455
|
|
|
1456 UNGCPRO;
|
|
|
1457 }
|
|
|
1458
|
|
|
1459 DEFUN ("process-status", Fprocess_status, 1, 1, 0, /*
|
|
|
1460 Return the status of PROCESS.
|
|
|
1461 This is a symbol, one of these:
|
|
|
1462
|
|
|
1463 run -- for a process that is running.
|
|
|
1464 stop -- for a process stopped but continuable.
|
|
|
1465 exit -- for a process that has exited.
|
|
|
1466 signal -- for a process that has got a fatal signal.
|
|
|
1467 open -- for a network stream connection that is open.
|
|
|
1468 closed -- for a network stream connection that is closed.
|
|
|
1469 nil -- if arg is a process name and no such process exists.
|
|
|
1470
|
|
|
1471 PROCESS may be a process, a buffer, the name of a process or buffer, or
|
|
|
1472 nil, indicating the current buffer's process.
|
|
|
1473 */
|
|
|
1474 (proc))
|
|
|
1475 {
|
|
|
1476 Lisp_Object status_symbol;
|
|
|
1477
|
|
|
1478 if (STRINGP (proc))
|
|
|
1479 proc = Fget_process (proc);
|
|
|
1480 else
|
|
|
1481 proc = get_process (proc);
|
|
|
1482
|
|
|
1483 if (NILP (proc))
|
|
|
1484 return Qnil;
|
|
|
1485
|
|
|
1486 status_symbol = XPROCESS (proc)->status_symbol;
|
|
|
1487 if (network_connection_p (proc))
|
|
|
1488 {
|
|
|
1489 if (EQ (status_symbol, Qrun))
|
|
|
1490 status_symbol = Qopen;
|
|
|
1491 else if (EQ (status_symbol, Qexit))
|
|
|
1492 status_symbol = Qclosed;
|
|
|
1493 }
|
|
|
1494 return status_symbol;
|
|
|
1495 }
|
|
|
1496
|
|
|
1497 DEFUN ("process-exit-status", Fprocess_exit_status, 1, 1, 0, /*
|
|
|
1498 Return the exit status of PROCESS or the signal number that killed it.
|
|
|
1499 If PROCESS has not yet exited or died, return 0.
|
|
|
1500 */
|
|
|
1501 (proc))
|
|
|
1502 {
|
|
|
1503 CHECK_PROCESS (proc);
|
|
|
1504 return make_int (XPROCESS (proc)->exit_code);
|
|
|
1505 }
|
|
|
1506
|
|
|
1507
|
|
|
1508
|
|
|
1509 /* send a signal number SIGNO to PROCESS.
|
|
|
1510 CURRENT_GROUP means send to the process group that currently owns
|
|
|
1511 the terminal being used to communicate with PROCESS.
|
|
|
1512 This is used for various commands in shell mode.
|
|
|
1513 If NOMSG is zero, insert signal-announcements into process's buffers
|
|
|
1514 right away.
|
|
|
1515
|
|
|
1516 If we can, we try to signal PROCESS by sending control characters
|
|
|
1517 down the pty. This allows us to signal inferiors who have changed
|
|
|
1518 their uid, for which killpg would return an EPERM error. */
|
|
|
1519
|
|
|
1520 static void
|
|
|
1521 process_send_signal (Lisp_Object process, int signo,
|
|
|
1522 int current_group, int nomsg)
|
|
|
1523 {
|
|
|
1524 /* This function can GC */
|
|
|
1525 Lisp_Object proc = get_process (process);
|
|
|
1526
|
|
|
1527 if (network_connection_p (proc))
|
|
|
1528 error ("Network connection %s is not a subprocess",
|
|
|
1529 XSTRING_DATA (XPROCESS(proc)->name));
|
|
|
1530 if (!PROCESS_LIVE_P (proc))
|
|
|
1531 error ("Process %s is not active",
|
|
|
1532 XSTRING_DATA (XPROCESS(proc)->name));
|
|
|
1533
|
|
|
1534 MAYBE_PROCMETH (kill_child_process, (proc, signo, current_group, nomsg));
|
|
|
1535 }
|
|
|
1536
|
|
|
1537 DEFUN ("interrupt-process", Finterrupt_process, 0, 2, 0, /*
|
|
|
1538 Interrupt process PROCESS. May be process or name of one.
|
|
|
1539 Nil or no arg means current buffer's process.
|
|
|
1540 Second arg CURRENT-GROUP non-nil means send signal to
|
|
|
1541 the current process-group of the process's controlling terminal
|
|
|
1542 rather than to the process's own process group.
|
|
|
1543 If the process is a shell, this means interrupt current subjob
|
|
|
1544 rather than the shell.
|
|
|
1545 */
|
|
|
1546 (process, current_group))
|
|
|
1547 {
|
|
|
1548 /* This function can GC */
|
|
|
1549 process_send_signal (process, SIGINT, !NILP (current_group), 0);
|
|
|
1550 return process;
|
|
|
1551 }
|
|
|
1552
|
|
|
1553 DEFUN ("kill-process", Fkill_process, 0, 2, 0, /*
|
|
|
1554 Kill process PROCESS. May be process or name of one.
|
|
|
1555 See function `interrupt-process' for more details on usage.
|
|
|
1556 */
|
|
|
1557 (process, current_group))
|
|
|
1558 {
|
|
|
1559 /* This function can GC */
|
|
|
1560 #ifdef SIGKILL
|
|
|
1561 process_send_signal (process, SIGKILL, !NILP (current_group), 0);
|
|
|
1562 #else
|
|
|
1563 error ("kill-process: Not supported on this system");
|
|
|
1564 #endif
|
|
|
1565 return process;
|
|
|
1566 }
|
|
|
1567
|
|
|
1568 DEFUN ("quit-process", Fquit_process, 0, 2, 0, /*
|
|
|
1569 Send QUIT signal to process PROCESS. May be process or name of one.
|
|
|
1570 See function `interrupt-process' for more details on usage.
|
|
|
1571 */
|
|
|
1572 (process, current_group))
|
|
|
1573 {
|
|
|
1574 /* This function can GC */
|
|
|
1575 #ifdef SIGQUIT
|
|
|
1576 process_send_signal (process, SIGQUIT, !NILP (current_group), 0);
|
|
|
1577 #else
|
|
|
1578 error ("quit-process: Not supported on this system");
|
|
|
1579 #endif
|
|
|
1580 return process;
|
|
|
1581 }
|
|
|
1582
|
|
|
1583 DEFUN ("stop-process", Fstop_process, 0, 2, 0, /*
|
|
|
1584 Stop process PROCESS. May be process or name of one.
|
|
|
1585 See function `interrupt-process' for more details on usage.
|
|
|
1586 */
|
|
|
1587 (process, current_group))
|
|
|
1588 {
|
|
|
1589 /* This function can GC */
|
|
|
1590 #ifdef SIGTSTP
|
|
|
1591 process_send_signal (process, SIGTSTP, !NILP (current_group), 0);
|
|
|
1592 #else
|
|
|
1593 error ("stop-process: Not supported on this system");
|
|
|
1594 #endif
|
|
|
1595 return process;
|
|
|
1596 }
|
|
|
1597
|
|
|
1598 DEFUN ("continue-process", Fcontinue_process, 0, 2, 0, /*
|
|
|
1599 Continue process PROCESS. May be process or name of one.
|
|
|
1600 See function `interrupt-process' for more details on usage.
|
|
|
1601 */
|
|
|
1602 (process, current_group))
|
|
|
1603 {
|
|
|
1604 /* This function can GC */
|
|
|
1605 #ifdef SIGCONT
|
|
|
1606 process_send_signal (process, SIGCONT, !NILP (current_group), 0);
|
|
|
1607 #else
|
|
|
1608 error ("continue-process: Not supported on this system");
|
|
|
1609 #endif
|
|
|
1610 return process;
|
|
|
1611 }
|
|
|
1612
|
|
|
1613 DEFUN ("signal-process", Fsignal_process, 2, 2,
|
|
|
1614 "nProcess number: \nnSignal code: ", /*
|
|
|
1615 Send the process with process id PID the signal with code SIGCODE.
|
|
|
1616 PID must be an integer. The process need not be a child of this Emacs.
|
|
|
1617 SIGCODE may be an integer, or a symbol whose name is a signal name.
|
|
|
1618 */
|
|
|
1619 (pid, sigcode))
|
|
|
1620 {
|
|
|
1621 CHECK_INT (pid);
|
|
|
1622
|
|
|
1623 if (INTP (sigcode))
|
|
|
1624 ;
|
|
|
1625 else
|
|
|
1626 {
|
|
|
1627 Bufbyte *name;
|
|
|
1628
|
|
|
1629 CHECK_SYMBOL (sigcode);
|
|
|
1630 name = string_data (XSYMBOL (sigcode)->name);
|
|
|
1631
|
|
|
1632 #define handle_signal(signal) \
|
|
|
1633 else if (!strcmp ((CONST char *) name, #signal)) \
|
|
|
1634 XSETINT (sigcode, signal)
|
|
|
1635
|
|
|
1636 if (0)
|
|
|
1637 ;
|
|
|
1638 handle_signal (SIGINT); /* ANSI */
|
|
|
1639 handle_signal (SIGILL); /* ANSI */
|
|
|
1640 handle_signal (SIGABRT); /* ANSI */
|
|
|
1641 handle_signal (SIGFPE); /* ANSI */
|
|
|
1642 handle_signal (SIGSEGV); /* ANSI */
|
|
|
1643 handle_signal (SIGTERM); /* ANSI */
|
|
|
1644
|
|
|
1645 #ifdef SIGHUP
|
|
|
1646 handle_signal (SIGHUP); /* POSIX */
|
|
|
1647 #endif
|
|
|
1648 #ifdef SIGQUIT
|
|
|
1649 handle_signal (SIGQUIT); /* POSIX */
|
|
|
1650 #endif
|
|
|
1651 #ifdef SIGTRAP
|
|
|
1652 handle_signal (SIGTRAP); /* POSIX */
|
|
|
1653 #endif
|
|
|
1654 #ifdef SIGKILL
|
|
|
1655 handle_signal (SIGKILL); /* POSIX */
|
|
|
1656 #endif
|
|
|
1657 #ifdef SIGUSR1
|
|
|
1658 handle_signal (SIGUSR1); /* POSIX */
|
|
|
1659 #endif
|
|
|
1660 #ifdef SIGUSR2
|
|
|
1661 handle_signal (SIGUSR2); /* POSIX */
|
|
|
1662 #endif
|
|
|
1663 #ifdef SIGPIPE
|
|
|
1664 handle_signal (SIGPIPE); /* POSIX */
|
|
|
1665 #endif
|
|
|
1666 #ifdef SIGALRM
|
|
|
1667 handle_signal (SIGALRM); /* POSIX */
|
|
|
1668 #endif
|
|
|
1669 #ifdef SIGCHLD
|
|
|
1670 handle_signal (SIGCHLD); /* POSIX */
|
|
|
1671 #endif
|
|
|
1672 #ifdef SIGCONT
|
|
|
1673 handle_signal (SIGCONT); /* POSIX */
|
|
|
1674 #endif
|
|
|
1675 #ifdef SIGSTOP
|
|
|
1676 handle_signal (SIGSTOP); /* POSIX */
|
|
|
1677 #endif
|
|
|
1678 #ifdef SIGTSTP
|
|
|
1679 handle_signal (SIGTSTP); /* POSIX */
|
|
|
1680 #endif
|
|
|
1681 #ifdef SIGTTIN
|
|
|
1682 handle_signal (SIGTTIN); /* POSIX */
|
|
|
1683 #endif
|
|
|
1684 #ifdef SIGTTOU
|
|
|
1685 handle_signal (SIGTTOU); /* POSIX */
|
|
|
1686 #endif
|
|
|
1687
|
|
|
1688 #ifdef SIGBUS
|
|
|
1689 handle_signal (SIGBUS); /* XPG5 */
|
|
|
1690 #endif
|
|
|
1691 #ifdef SIGPOLL
|
|
|
1692 handle_signal (SIGPOLL); /* XPG5 */
|
|
|
1693 #endif
|
|
|
1694 #ifdef SIGPROF
|
|
|
1695 handle_signal (SIGPROF); /* XPG5 */
|
|
|
1696 #endif
|
|
|
1697 #ifdef SIGSYS
|
|
|
1698 handle_signal (SIGSYS); /* XPG5 */
|
|
|
1699 #endif
|
|
|
1700 #ifdef SIGURG
|
|
|
1701 handle_signal (SIGURG); /* XPG5 */
|
|
|
1702 #endif
|
|
|
1703 #ifdef SIGXCPU
|
|
|
1704 handle_signal (SIGXCPU); /* XPG5 */
|
|
|
1705 #endif
|
|
|
1706 #ifdef SIGXFSZ
|
|
|
1707 handle_signal (SIGXFSZ); /* XPG5 */
|
|
|
1708 #endif
|
|
|
1709 #ifdef SIGVTALRM
|
|
|
1710 handle_signal (SIGVTALRM); /* XPG5 */
|
|
|
1711 #endif
|
|
|
1712
|
|
|
1713 #ifdef SIGIO
|
|
|
1714 handle_signal (SIGIO); /* BSD 4.2 */
|
|
|
1715 #endif
|
|
|
1716 #ifdef SIGWINCH
|
|
|
1717 handle_signal (SIGWINCH); /* BSD 4.3 */
|
|
|
1718 #endif
|
|
|
1719
|
|
|
1720 #ifdef SIGEMT
|
|
|
1721 handle_signal (SIGEMT);
|
|
|
1722 #endif
|
|
|
1723 #ifdef SIGINFO
|
|
|
1724 handle_signal (SIGINFO);
|
|
|
1725 #endif
|
|
|
1726 #ifdef SIGHWE
|
|
|
1727 handle_signal (SIGHWE);
|
|
|
1728 #endif
|
|
|
1729 #ifdef SIGPRE
|
|
|
1730 handle_signal (SIGPRE);
|
|
|
1731 #endif
|
|
|
1732 #ifdef SIGUME
|
|
|
1733 handle_signal (SIGUME);
|
|
|
1734 #endif
|
|
|
1735 #ifdef SIGDLK
|
|
|
1736 handle_signal (SIGDLK);
|
|
|
1737 #endif
|
|
|
1738 #ifdef SIGCPULIM
|
|
|
1739 handle_signal (SIGCPULIM);
|
|
|
1740 #endif
|
|
|
1741 #ifdef SIGIOT
|
|
|
1742 handle_signal (SIGIOT);
|
|
|
1743 #endif
|
|
|
1744 #ifdef SIGLOST
|
|
|
1745 handle_signal (SIGLOST);
|
|
|
1746 #endif
|
|
|
1747 #ifdef SIGSTKFLT
|
|
|
1748 handle_signal (SIGSTKFLT);
|
|
|
1749 #endif
|
|
|
1750 #ifdef SIGUNUSED
|
|
|
1751 handle_signal (SIGUNUSED);
|
|
|
1752 #endif
|
|
|
1753 #ifdef SIGDANGER
|
|
|
1754 handle_signal (SIGDANGER); /* AIX */
|
|
|
1755 #endif
|
|
|
1756 #ifdef SIGMSG
|
|
|
1757 handle_signal (SIGMSG);
|
|
|
1758 #endif
|
|
|
1759 #ifdef SIGSOUND
|
|
|
1760 handle_signal (SIGSOUND);
|
|
|
1761 #endif
|
|
|
1762 #ifdef SIGRETRACT
|
|
|
1763 handle_signal (SIGRETRACT);
|
|
|
1764 #endif
|
|
|
1765 #ifdef SIGGRANT
|
|
|
1766 handle_signal (SIGGRANT);
|
|
|
1767 #endif
|
|
|
1768 #ifdef SIGPWR
|
|
|
1769 handle_signal (SIGPWR);
|
|
|
1770 #endif
|
|
|
1771 else
|
|
|
1772 error ("Undefined signal name %s", name);
|
|
|
1773 }
|
|
|
1774
|
|
|
1775 #undef handle_signal
|
|
|
1776
|
|
|
1777 return make_int (PROCMETH_OR_GIVEN (kill_process_by_pid,
|
|
|
1778 (XINT (pid), XINT (sigcode)), -1));
|
|
|
1779 }
|
|
|
1780
|
|
|
1781 DEFUN ("process-send-eof", Fprocess_send_eof, 0, 1, 0, /*
|
|
|
1782 Make PROCESS see end-of-file in its input.
|
|
|
1783 PROCESS may be a process, a buffer, the name of a process or buffer, or
|
|
|
1784 nil, indicating the current buffer's process.
|
|
|
1785 If PROCESS is a network connection, or is a process communicating
|
|
|
1786 through a pipe (as opposed to a pty), then you cannot send any more
|
|
|
1787 text to PROCESS after you call this function.
|
|
|
1788 */
|
|
|
1789 (process))
|
|
|
1790 {
|
|
|
1791 /* This function can GC */
|
|
|
1792 Lisp_Object proc = get_process (process);
|
|
|
1793
|
|
|
1794 /* Make sure the process is really alive. */
|
|
|
1795 if (! EQ (XPROCESS (proc)->status_symbol, Qrun))
|
|
|
1796 error ("Process %s not running", XSTRING_DATA (XPROCESS (proc)->name));
|
|
|
1797
|
|
|
1798 if (!MAYBE_INT_PROCMETH (process_send_eof, (proc)))
|
|
|
1799 {
|
|
|
1800 if (!NILP (DATA_OUTSTREAM (XPROCESS (proc))))
|
|
|
1801 {
|
|
|
1802 Lstream_close (XLSTREAM (DATA_OUTSTREAM (XPROCESS (proc))));
|
|
|
1803 event_stream_delete_stream_pair (Qnil, XPROCESS (proc)->pipe_outstream);
|
|
|
1804 XPROCESS (proc)->pipe_outstream = Qnil;
|
|
|
1805 #ifdef FILE_CODING
|
|
|
1806 XPROCESS (proc)->coding_outstream = Qnil;
|
|
|
1807 #endif
|
|
|
1808 }
|
|
|
1809 }
|
|
|
1810
|
|
|
1811 return process;
|
|
|
1812 }
|
|
|
1813
|
|
|
1814
|
|
|
1815 /************************************************************************/
|
|
|
1816 /* deleting a process */
|
|
|
1817 /************************************************************************/
|
|
|
1818
|
|
|
1819 void
|
|
|
1820 deactivate_process (Lisp_Object proc)
|
|
|
1821 {
|
|
|
1822 struct Lisp_Process *p = XPROCESS (proc);
|
|
|
1823 USID usid;
|
|
|
1824
|
|
|
1825 /* It's possible that we got as far in the process-creation
|
|
|
1826 process as creating the descriptors but didn't get so
|
|
|
1827 far as selecting the process for input. In this
|
|
|
1828 case, p->pid is nil: p->pid is set at the same time that
|
|
|
1829 the process is selected for input. */
|
|
|
1830 /* #### The comment does not look correct. event_stream_unselect_process
|
|
|
1831 is guarded by process->selected, so this is not a problem. - kkm*/
|
|
|
1832 /* Must call this before setting the streams to nil */
|
|
|
1833 event_stream_unselect_process (p);
|
|
|
1834
|
|
|
1835 if (!NILP (DATA_OUTSTREAM (p)))
|
|
|
1836 Lstream_close (XLSTREAM (DATA_OUTSTREAM (p)));
|
|
|
1837 if (!NILP (DATA_INSTREAM (p)))
|
|
|
1838 Lstream_close (XLSTREAM (DATA_INSTREAM (p)));
|
|
|
1839
|
|
|
1840 /* Provide minimal implementation for deactivate_process
|
|
|
1841 if there's no process-specific one */
|
|
|
1842 if (HAS_PROCMETH_P (deactivate_process))
|
|
|
1843 usid = PROCMETH (deactivate_process, (p));
|
|
|
1844 else
|
|
|
1845 usid = event_stream_delete_stream_pair (p->pipe_instream,
|
|
|
1846 p->pipe_outstream);
|
|
|
1847
|
|
|
1848 if (usid != USID_DONTHASH)
|
|
|
1849 remhash ((CONST void*)usid, usid_to_process);
|
|
|
1850
|
|
|
1851 p->pipe_instream = Qnil;
|
|
|
1852 p->pipe_outstream = Qnil;
|
|
|
1853 #ifdef FILE_CODING
|
|
|
1854 p->coding_instream = Qnil;
|
|
|
1855 p->coding_outstream = Qnil;
|
|
|
1856 #endif
|
|
|
1857 }
|
|
|
1858
|
|
|
1859 static void
|
|
|
1860 remove_process (Lisp_Object proc)
|
|
|
1861 {
|
|
|
1862 Vprocess_list = delq_no_quit (proc, Vprocess_list);
|
|
|
1863 Fset_marker (XPROCESS (proc)->mark, Qnil, Qnil);
|
|
|
1864
|
|
|
1865 deactivate_process (proc);
|
|
|
1866 }
|
|
|
1867
|
|
|
1868 DEFUN ("delete-process", Fdelete_process, 1, 1, 0, /*
|
|
|
1869 Delete PROCESS: kill it and forget about it immediately.
|
|
|
1870 PROCESS may be a process or the name of one, or a buffer name.
|
|
|
1871 */
|
|
|
1872 (proc))
|
|
|
1873 {
|
|
|
1874 /* This function can GC */
|
|
|
1875 struct Lisp_Process *p;
|
|
|
1876 proc = get_process (proc);
|
|
|
1877 p = XPROCESS (proc);
|
|
|
1878 if (network_connection_p (proc))
|
|
|
1879 {
|
|
|
1880 p->status_symbol = Qexit;
|
|
|
1881 p->exit_code = 0;
|
|
|
1882 p->core_dumped = 0;
|
|
|
1883 p->tick++;
|
|
|
1884 process_tick++;
|
|
|
1885 }
|
|
|
1886 else if (!NILP(p->pipe_instream))
|
|
|
1887 {
|
|
|
1888 Fkill_process (proc, Qnil);
|
|
|
1889 /* Do this now, since remove_process will make sigchld_handler do nothing. */
|
|
|
1890 p->status_symbol = Qsignal;
|
|
|
1891 p->exit_code = SIGKILL;
|
|
|
1892 p->core_dumped = 0;
|
|
|
1893 p->tick++;
|
|
|
1894 process_tick++;
|
|
|
1895 status_notify ();
|
|
|
1896 }
|
|
|
1897 remove_process (proc);
|
|
|
1898 return Qnil;
|
|
|
1899 }
|
|
|
1900
|
|
|
1901 /* Kill all processes associated with `buffer'.
|
|
|
1902 If `buffer' is nil, kill all processes */
|
|
|
1903
|
|
|
1904 void
|
|
|
1905 kill_buffer_processes (Lisp_Object buffer)
|
|
|
1906 {
|
|
|
1907 Lisp_Object tail;
|
|
|
1908
|
|
|
1909 for (tail = Vprocess_list; CONSP (tail);
|
|
|
1910 tail = XCDR (tail))
|
|
|
1911 {
|
|
|
1912 Lisp_Object proc = XCAR (tail);
|
|
|
1913 if (PROCESSP (proc)
|
|
|
1914 && (NILP (buffer) || EQ (XPROCESS (proc)->buffer, buffer)))
|
|
|
1915 {
|
|
|
1916 if (network_connection_p (proc))
|
|
|
1917 Fdelete_process (proc);
|
|
|
1918 else if (!NILP (XPROCESS (proc)->pipe_instream))
|
|
|
1919 process_send_signal (proc, SIGHUP, 0, 1);
|
|
|
1920 }
|
|
|
1921 }
|
|
|
1922 }
|
|
|
1923
|
|
|
1924 DEFUN ("process-kill-without-query", Fprocess_kill_without_query, 1, 2, 0, /*
|
|
|
1925 Say no query needed if PROCESS is running when Emacs is exited.
|
|
|
1926 Optional second argument if non-nil says to require a query.
|
|
|
1927 Value is t if a query was formerly required.
|
|
|
1928 */
|
|
|
1929 (proc, require_query_p))
|
|
|
1930 {
|
|
|
1931 int tem;
|
|
|
1932
|
|
|
1933 CHECK_PROCESS (proc);
|
|
|
1934 tem = XPROCESS (proc)->kill_without_query;
|
|
|
1935 XPROCESS (proc)->kill_without_query = NILP (require_query_p);
|
|
|
1936
|
|
|
1937 return tem ? Qnil : Qt;
|
|
|
1938 }
|
|
|
1939
|
|
|
1940 DEFUN ("process-kill-without-query-p", Fprocess_kill_without_query_p, 1, 1, 0, /*
|
|
|
1941 Whether PROC will be killed without query if running when emacs is exited.
|
|
|
1942 */
|
|
|
1943 (proc))
|
|
|
1944 {
|
|
|
1945 CHECK_PROCESS (proc);
|
|
|
1946 return XPROCESS (proc)->kill_without_query ? Qt : Qnil;
|
|
|
1947 }
|
|
|
1948
|
|
|
1949
|
|
|
1950 /* This is not named init_process in order to avoid a conflict with NS 3.3 */
|
|
|
1951 void
|
|
|
1952 init_xemacs_process (void)
|
|
|
1953 {
|
|
|
1954 MAYBE_PROCMETH (init_process, ());
|
|
|
1955
|
|
|
1956 Vprocess_list = Qnil;
|
|
|
1957
|
|
|
1958 if (usid_to_process)
|
|
|
1959 clrhash (usid_to_process);
|
|
|
1960 else
|
|
|
1961 usid_to_process = make_hash_table (32);
|
|
|
1962 }
|
|
|
1963
|
|
|
1964 #if 0
|
|
|
1965
|
|
|
1966 xxDEFUN ("process-connection", Fprocess_connection, 0, 1, 0, /*
|
|
|
1967 Return the connection type of `PROCESS'. This can be nil (pipe),
|
|
|
1968 t or pty (pty) or stream (socket connection).
|
|
|
1969 */
|
|
|
1970 (process))
|
|
|
1971 {
|
|
|
1972 return XPROCESS (process)->type;
|
|
|
1973 }
|
|
|
1974
|
|
|
1975 #endif /* 0 */
|
|
|
1976
|
|
|
1977 void
|
|
|
1978 syms_of_process (void)
|
|
|
1979 {
|
|
|
1980 defsymbol (&Qprocessp, "processp");
|
|
|
1981 defsymbol (&Qrun, "run");
|
|
|
1982 defsymbol (&Qstop, "stop");
|
|
|
1983 defsymbol (&Qopen, "open");
|
|
|
1984 defsymbol (&Qclosed, "closed");
|
|
|
1985
|
|
|
1986 defsymbol (&Qtcp, "tcp");
|
|
|
1987 defsymbol (&Qudp, "udp");
|
|
|
1988
|
|
|
1989 #ifdef HAVE_MULTICAST
|
|
|
1990 defsymbol(&Qmulticast, "multicast"); /* Used for occasional warnings */
|
|
|
1991 #endif
|
|
|
1992
|
|
|
1993 DEFSUBR (Fprocessp);
|
|
|
1994 DEFSUBR (Fget_process);
|
|
|
1995 DEFSUBR (Fget_buffer_process);
|
|
|
1996 DEFSUBR (Fdelete_process);
|
|
|
1997 DEFSUBR (Fprocess_status);
|
|
|
1998 DEFSUBR (Fprocess_exit_status);
|
|
|
1999 DEFSUBR (Fprocess_id);
|
|
|
2000 DEFSUBR (Fprocess_name);
|
|
|
2001 DEFSUBR (Fprocess_tty_name);
|
|
|
2002 DEFSUBR (Fprocess_command);
|
|
|
2003 DEFSUBR (Fset_process_buffer);
|
|
|
2004 DEFSUBR (Fprocess_buffer);
|
|
|
2005 DEFSUBR (Fprocess_mark);
|
|
|
2006 DEFSUBR (Fset_process_filter);
|
|
|
2007 DEFSUBR (Fprocess_filter);
|
|
|
2008 DEFSUBR (Fset_process_window_size);
|
|
|
2009 DEFSUBR (Fset_process_sentinel);
|
|
|
2010 DEFSUBR (Fprocess_sentinel);
|
|
|
2011 DEFSUBR (Fprocess_kill_without_query);
|
|
|
2012 DEFSUBR (Fprocess_kill_without_query_p);
|
|
|
2013 DEFSUBR (Fprocess_list);
|
|
|
2014 DEFSUBR (Fstart_process_internal);
|
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2015 #ifdef HAVE_SOCKETS
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2016 DEFSUBR (Fopen_network_stream_internal);
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2017 #ifdef HAVE_MULTICAST
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2018 DEFSUBR (Fopen_multicast_group_internal);
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2019 #endif /* HAVE_MULTICAST */
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2020 #endif /* HAVE_SOCKETS */
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2021 DEFSUBR (Fprocess_send_region);
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2022 DEFSUBR (Fprocess_send_string);
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2023 DEFSUBR (Finterrupt_process);
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2024 DEFSUBR (Fkill_process);
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2025 DEFSUBR (Fquit_process);
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2026 DEFSUBR (Fstop_process);
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2027 DEFSUBR (Fcontinue_process);
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2028 DEFSUBR (Fprocess_send_eof);
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2029 DEFSUBR (Fsignal_process);
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2030 /* DEFSUBR (Fprocess_connection); */
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2031 #ifdef FILE_CODING
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2032 DEFSUBR (Fprocess_input_coding_system);
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2033 DEFSUBR (Fprocess_output_coding_system);
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2034 DEFSUBR (Fset_process_input_coding_system);
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2035 DEFSUBR (Fset_process_output_coding_system);
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2036 DEFSUBR (Fprocess_coding_system);
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2037 DEFSUBR (Fset_process_coding_system);
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2038 #endif /* FILE_CODING */
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2039 }
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2040
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2041 void
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2042 vars_of_process (void)
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2043 {
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2044 Fprovide (intern ("subprocesses"));
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2045 #ifdef HAVE_SOCKETS
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2046 Fprovide (intern ("network-streams"));
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2047 #ifdef HAVE_MULTICAST
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2048 Fprovide (intern ("multicast"));
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2049 #endif /* HAVE_MULTICAST */
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2050 #endif /* HAVE_SOCKETS */
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2051 staticpro (&Vprocess_list);
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2052
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2053 DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes /*
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2054 *Non-nil means delete processes immediately when they exit.
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2055 nil means don't delete them until `list-processes' is run.
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2056 */ );
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2057
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2058 delete_exited_processes = 1;
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2059
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2060 DEFVAR_LISP ("process-connection-type", &Vprocess_connection_type /*
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2061 Control type of device used to communicate with subprocesses.
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2062 Values are nil to use a pipe, or t or `pty' to use a pty.
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2063 The value has no effect if the system has no ptys or if all ptys are busy:
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2064 then a pipe is used in any case.
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2065 The value takes effect when `start-process' is called.
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2066 */ );
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2067 Vprocess_connection_type = Qt;
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2068
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2069 DEFVAR_BOOL ("windowed-process-io", &windowed_process_io /*
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2070 Enables input/output on standard handles of a windowed process.
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2071 When this variable is nil (the default), XEmacs does not attempt to read
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2072 standard output handle of a windowed process. Instead, the process is
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2073 immediately marked as exited immediately upon successful launching. This is
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2074 done because normal windowed processes do not use standard I/O, as they are
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2075 not connected to any console.
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2076
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2077 When launching a specially crafted windowed process, which expects to be
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2078 launched by XEmacs, or by other program which pipes its standard input and
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2079 output, this variable must be set to non-nil, in which case XEmacs will
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2080 treat this process just like a console process.
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2081
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2082 NOTE: You should never set this variable, only bind it.
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2083
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2084 Only Windows processes can be "windowed" or "console". This variable has no
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2085 effect on UNIX processes, because all UNIX processes are "console".
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2086 */ );
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2087 windowed_process_io = 0;
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2088
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2089 #ifdef PROCESS_IO_BLOCKING
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2090 DEFVAR_LISP ("network-stream-blocking-port-list", &network_stream_blocking_port_list /*
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2091 List of port numbers or port names to set a blocking I/O mode with connection.
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2092 Nil value means to set a default(non-blocking) I/O mode.
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2093 The value takes effect when `open-network-stream-internal' is called.
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2094 */ );
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2095 network_stream_blocking_port_list = Qnil;
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2096 #endif /* PROCESS_IO_BLOCKING */
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2097 }
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2098
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2099 #endif /* not NO_SUBPROCESSES */
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