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100
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1 /* Process support for Windows NT port of XEMACS.
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2 Copyright (C) 1992, 1995 Free Software Foundation, Inc.
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3
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4 This file is part of XEmacs.
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5
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6 XEmacs is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by the
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8 Free Software Foundation; either version 2, or (at your option) any
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9 later version.
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10
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11 XEmacs is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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14 for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with XEmacs; see the file COPYING. If not, write to
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18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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19 Boston, MA 02111-1307, USA.
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20
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21 Drew Bliss Oct 14, 1993
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22 Adapted from alarm.c by Tim Fleehart */
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23
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24 /* Adapted for XEmacs by David Hobley <david@spook-le0.cia.com.au> */
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209
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25 /* Synced with FSF Emacs 19.34.6 by Marc Paquette <marcpa@cam.org> */
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100
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26
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27 #include <stdio.h>
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28 #include <stdlib.h>
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29 #include <errno.h>
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30 #include <io.h>
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31 #include <fcntl.h>
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32 #include <signal.h>
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33
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34 /* must include CRT headers *before* config.h */
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274
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35 /* ### I don't believe it - martin */
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36 #include <config.h>
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100
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37 #undef signal
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38 #undef wait
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39 #undef spawnve
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40 #undef select
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41 #undef kill
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42
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43 #include <windows.h>
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239
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44 #include <sys/socket.h>
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100
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45
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46 #include "lisp.h"
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239
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47 #include "sysproc.h"
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100
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48 #include "nt.h"
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209
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49 #include "ntheap.h" /* From 19.34.6 */
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100
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50 #include "systime.h"
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223
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51 #include "syssignal.h"
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100
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52 #include "syswait.h"
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53 #include "process.h"
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209
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54 /*#include "w32term.h"*/ /* From 19.34.6: sync in ? --marcpa */
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100
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55
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288
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56 /* #### I'm not going to play with shit. */
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57 #pragma warning (disable:4013 4024 4090)
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58
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100
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59 /* Control whether spawnve quotes arguments as necessary to ensure
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60 correct parsing by child process. Because not all uses of spawnve
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61 are careful about constructing argv arrays, we make this behaviour
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62 conditional (off by default). */
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63 Lisp_Object Vwin32_quote_process_args;
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64
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209
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65 /* Control whether create_child causes the process' window to be
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66 hidden. The default is nil. */
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67 Lisp_Object Vwin32_start_process_show_window;
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68
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69 /* Control whether create_child causes the process to inherit Emacs'
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70 console window, or be given a new one of its own. The default is
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71 nil, to allow multiple DOS programs to run on Win95. Having separate
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72 consoles also allows Emacs to cleanly terminate process groups. */
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73 Lisp_Object Vwin32_start_process_share_console;
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74
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100
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75 /* Time to sleep before reading from a subprocess output pipe - this
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76 avoids the inefficiency of frequently reading small amounts of data.
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77 This is primarily necessary for handling DOS processes on Windows 95,
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78 but is useful for Win32 processes on both Win95 and NT as well. */
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79 Lisp_Object Vwin32_pipe_read_delay;
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80
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209
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81 /* Control whether stat() attempts to generate fake but hopefully
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82 "accurate" inode values, by hashing the absolute truenames of files.
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83 This should detect aliasing between long and short names, but still
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84 allows the possibility of hash collisions. */
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85 Lisp_Object Vwin32_generate_fake_inodes;
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86
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87 Lisp_Object Qhigh, Qlow;
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100
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88
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239
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89 #ifndef DEBUG_XEMACS
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90 __inline
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100
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91 #endif
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92 void _DebPrint (const char *fmt, ...)
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93 {
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239
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94 #ifdef DEBUG_XEMACS
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100
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95 char buf[1024];
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96 va_list args;
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97
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98 va_start (args, fmt);
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99 vsprintf (buf, fmt, args);
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100 va_end (args);
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101 OutputDebugString (buf);
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239
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102 #endif
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100
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103 }
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104
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223
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105 /* sys_signal moved to nt.c. It's now called msw_signal... */
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100
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106
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107 /* Defined in <process.h> which conflicts with the local copy */
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108 #define _P_NOWAIT 1
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109
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110 /* Child process management list. */
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111 int child_proc_count = 0;
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112 child_process child_procs[ MAX_CHILDREN ];
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113 child_process *dead_child = NULL;
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114
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115 DWORD WINAPI reader_thread (void *arg);
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116
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117 /* Find an unused process slot. */
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118 child_process *
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119 new_child (void)
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120 {
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121 child_process *cp;
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122 DWORD id;
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123
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124 for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
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125 if (!CHILD_ACTIVE (cp))
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272
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126 goto Initialize;
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100
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127 if (child_proc_count == MAX_CHILDREN)
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128 return NULL;
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129 cp = &child_procs[child_proc_count++];
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130
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272
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131 Initialize:
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132 xzero (*cp);
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100
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133 cp->fd = -1;
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134 cp->pid = -1;
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308
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135 if (cp->procinfo.hProcess)
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136 CloseHandle(cp->procinfo.hProcess);
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100
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137 cp->procinfo.hProcess = NULL;
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138 cp->status = STATUS_READ_ERROR;
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139
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140 /* use manual reset event so that select() will function properly */
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141 cp->char_avail = CreateEvent (NULL, TRUE, FALSE, NULL);
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142 if (cp->char_avail)
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143 {
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144 cp->char_consumed = CreateEvent (NULL, FALSE, FALSE, NULL);
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145 if (cp->char_consumed)
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146 {
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147 cp->thrd = CreateThread (NULL, 1024, reader_thread, cp, 0, &id);
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148 if (cp->thrd)
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149 return cp;
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150 }
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151 }
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152 delete_child (cp);
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153 return NULL;
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154 }
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155
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156 void
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157 delete_child (child_process *cp)
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158 {
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159 int i;
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160
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161 /* Should not be deleting a child that is still needed. */
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162 for (i = 0; i < MAXDESC; i++)
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163 if (fd_info[i].cp == cp)
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164 abort ();
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165
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166 if (!CHILD_ACTIVE (cp))
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167 return;
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168
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169 /* reap thread if necessary */
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170 if (cp->thrd)
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171 {
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172 DWORD rc;
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173
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174 if (GetExitCodeThread (cp->thrd, &rc) && rc == STILL_ACTIVE)
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175 {
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176 /* let the thread exit cleanly if possible */
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177 cp->status = STATUS_READ_ERROR;
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178 SetEvent (cp->char_consumed);
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179 if (WaitForSingleObject (cp->thrd, 1000) != WAIT_OBJECT_0)
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180 {
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181 DebPrint (("delete_child.WaitForSingleObject (thread) failed "
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182 "with %lu for fd %ld\n", GetLastError (), cp->fd));
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183 TerminateThread (cp->thrd, 0);
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184 }
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185 }
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186 CloseHandle (cp->thrd);
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187 cp->thrd = NULL;
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188 }
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189 if (cp->char_avail)
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190 {
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191 CloseHandle (cp->char_avail);
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192 cp->char_avail = NULL;
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193 }
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194 if (cp->char_consumed)
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195 {
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196 CloseHandle (cp->char_consumed);
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197 cp->char_consumed = NULL;
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198 }
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199
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200 /* update child_proc_count (highest numbered slot in use plus one) */
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201 if (cp == child_procs + child_proc_count - 1)
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202 {
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203 for (i = child_proc_count-1; i >= 0; i--)
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204 if (CHILD_ACTIVE (&child_procs[i]))
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205 {
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206 child_proc_count = i + 1;
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207 break;
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208 }
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209 }
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210 if (i < 0)
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211 child_proc_count = 0;
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212 }
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213
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214 /* Find a child by pid. */
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215 static child_process *
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216 find_child_pid (DWORD pid)
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217 {
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218 child_process *cp;
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219
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220 for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
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221 if (CHILD_ACTIVE (cp) && pid == cp->pid)
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222 return cp;
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223 return NULL;
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224 }
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225
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226
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227 /* Thread proc for child process and socket reader threads. Each thread
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228 is normally blocked until woken by select() to check for input by
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229 reading one char. When the read completes, char_avail is signalled
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230 to wake up the select emulator and the thread blocks itself again. */
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231 DWORD WINAPI
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232 reader_thread (void *arg)
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233 {
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234 child_process *cp;
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235
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236 /* Our identity */
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237 cp = (child_process *)arg;
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238
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308
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239 /* <matts@tibco.com> - I think the test below is wrong - we don't
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240 want to wait for someone to signal char_consumed, as we haven't
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241 read anything for them to consume yet! */
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242
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243 /*
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100
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244 if (cp == NULL ||
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245 WaitForSingleObject (cp->char_consumed, INFINITE) != WAIT_OBJECT_0)
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308
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246 */
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247
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248 if (cp == NULL)
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249 {
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250 return 1;
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251 }
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100
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252
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253 for (;;)
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254 {
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255 int rc;
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256
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257 rc = _sys_read_ahead (cp->fd);
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258
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259 /* The name char_avail is a misnomer - it really just means the
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260 read-ahead has completed, whether successfully or not. */
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261 if (!SetEvent (cp->char_avail))
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262 {
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263 DebPrint (("reader_thread.SetEvent failed with %lu for fd %ld\n",
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264 GetLastError (), cp->fd));
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265 return 1;
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266 }
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267
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268 if (rc == STATUS_READ_ERROR)
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308
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269 {
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270 /* We are finished, so clean up handles and set to NULL so
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271 that CHILD_ACTIVE will see what is going on */
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272 if (cp->char_avail) {
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273 CloseHandle (cp->char_avail);
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274 cp->char_avail = NULL;
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275 }
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276 if (cp->thrd) {
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277 CloseHandle (cp->thrd);
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278 cp->thrd = NULL;
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279 }
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280 if (cp->char_consumed) {
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281 CloseHandle(cp->char_consumed);
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282 cp->char_consumed = NULL;
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283 }
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284 if (cp->procinfo.hProcess)
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285 {
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286 CloseHandle (cp->procinfo.hProcess);
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287 cp->procinfo.hProcess=NULL;
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288 }
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289 return 1;
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290 }
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100
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291
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292 /* If the read died, the child has died so let the thread die */
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293 if (rc == STATUS_READ_FAILED)
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294 break;
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295
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296 /* Wait until our input is acknowledged before reading again */
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297 if (WaitForSingleObject (cp->char_consumed, INFINITE) != WAIT_OBJECT_0)
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298 {
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299 DebPrint (("reader_thread.WaitForSingleObject failed with "
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300 "%lu for fd %ld\n", GetLastError (), cp->fd));
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301 break;
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302 }
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303 }
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308
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304 /* We are finished, so clean up handles and set to NULL so that
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305 CHILD_ACTIVE will see what is going on */
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306 if (cp->char_avail) {
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307 CloseHandle (cp->char_avail);
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308 cp->char_avail = NULL;
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309 }
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310 if (cp->thrd) {
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311 CloseHandle (cp->thrd);
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312 cp->thrd = NULL;
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313 }
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314 if (cp->char_consumed) {
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315 CloseHandle(cp->char_consumed);
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316 cp->char_consumed = NULL;
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317 }
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318 if (cp->procinfo.hProcess)
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319 {
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320 CloseHandle (cp->procinfo.hProcess);
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321 cp->procinfo.hProcess=NULL;
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322 }
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323
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100
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324 return 0;
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325 }
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326
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209
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327 /* To avoid Emacs changing directory, we just record here the directory
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328 the new process should start in. This is set just before calling
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329 sys_spawnve, and is not generally valid at any other time. */
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288
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330 static const char * process_dir;
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209
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331
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100
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332 static BOOL
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333 create_child (char *exe, char *cmdline, char *env,
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334 int * pPid, child_process *cp)
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335 {
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336 STARTUPINFO start;
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337 SECURITY_ATTRIBUTES sec_attrs;
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338 SECURITY_DESCRIPTOR sec_desc;
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209
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339 char dir[ MAXPATHLEN ];
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100
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340
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341 if (cp == NULL) abort ();
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342
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272
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343 xzero (start);
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100
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344 start.cb = sizeof (start);
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345
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346 #ifdef HAVE_NTGUI
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209
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347 if (NILP (Vwin32_start_process_show_window))
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100
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348 start.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
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209
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349 else
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350 start.dwFlags = STARTF_USESTDHANDLES;
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100
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351 start.wShowWindow = SW_HIDE;
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352
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353 start.hStdInput = GetStdHandle (STD_INPUT_HANDLE);
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354 start.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE);
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355 start.hStdError = GetStdHandle (STD_ERROR_HANDLE);
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356 #endif /* HAVE_NTGUI */
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357
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358 /* Explicitly specify no security */
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359 if (!InitializeSecurityDescriptor (&sec_desc, SECURITY_DESCRIPTOR_REVISION))
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360 goto EH_Fail;
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361 if (!SetSecurityDescriptorDacl (&sec_desc, TRUE, NULL, FALSE))
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362 goto EH_Fail;
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363 sec_attrs.nLength = sizeof (sec_attrs);
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364 sec_attrs.lpSecurityDescriptor = &sec_desc;
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365 sec_attrs.bInheritHandle = FALSE;
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366
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209
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367 strcpy (dir, process_dir);
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368 unixtodos_filename (dir);
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369
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100
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370 if (!CreateProcess (exe, cmdline, &sec_attrs, NULL, TRUE,
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209
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371 (!NILP (Vwin32_start_process_share_console)
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372 ? CREATE_NEW_PROCESS_GROUP
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373 : CREATE_NEW_CONSOLE),
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374 env, dir,
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100
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375 &start, &cp->procinfo))
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376 goto EH_Fail;
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377
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378 cp->pid = (int) cp->procinfo.dwProcessId;
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379
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308
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380 CloseHandle (cp->procinfo.hThread);
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381 CloseHandle (cp->procinfo.hProcess);
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382 cp->procinfo.hThread=NULL;
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383 cp->procinfo.hProcess=NULL;
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384
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100
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385 /* Hack for Windows 95, which assigns large (ie negative) pids */
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386 if (cp->pid < 0)
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387 cp->pid = -cp->pid;
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388
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389 /* pid must fit in a Lisp_Int */
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282
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390 #ifdef USE_UNION_TYPE
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391 cp->pid = (cp->pid & ((1U << VALBITS) - 1));
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392 #else
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100
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393 cp->pid = (cp->pid & VALMASK);
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282
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394 #endif
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100
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395
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396 *pPid = cp->pid;
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397
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398 return TRUE;
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399
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400 EH_Fail:
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401 DebPrint (("create_child.CreateProcess failed: %ld\n", GetLastError()););
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402 return FALSE;
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403 }
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404
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209
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405 void
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406 win32_executable_type (char * filename, int * is_dos_app, int * is_cygnus_app)
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|
100
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407 {
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209
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408 file_data executable;
|
|
|
409 char * p;
|
|
100
|
410
|
|
209
|
411 /* Default values in case we can't tell for sure. */
|
|
|
412 *is_dos_app = FALSE;
|
|
|
413 *is_cygnus_app = FALSE;
|
|
|
414
|
|
|
415 if (!open_input_file (&executable, filename))
|
|
|
416 return;
|
|
|
417
|
|
|
418 p = strrchr (filename, '.');
|
|
100
|
419
|
|
|
420 /* We can only identify DOS .com programs from the extension. */
|
|
|
421 if (p && stricmp (p, ".com") == 0)
|
|
209
|
422 *is_dos_app = TRUE;
|
|
|
423 else if (p && (stricmp (p, ".bat") == 0 ||
|
|
|
424 stricmp (p, ".cmd") == 0))
|
|
|
425 {
|
|
|
426 /* A DOS shell script - it appears that CreateProcess is happy to
|
|
|
427 accept this (somewhat surprisingly); presumably it looks at
|
|
|
428 COMSPEC to determine what executable to actually invoke.
|
|
100
|
429 Therefore, we have to do the same here as well. */
|
|
209
|
430 /* Actually, I think it uses the program association for that
|
|
|
431 extension, which is defined in the registry. */
|
|
|
432 p = egetenv ("COMSPEC");
|
|
100
|
433 if (p)
|
|
209
|
434 win32_executable_type (p, is_dos_app, is_cygnus_app);
|
|
100
|
435 }
|
|
|
436 else
|
|
|
437 {
|
|
209
|
438 /* Look for DOS .exe signature - if found, we must also check that
|
|
|
439 it isn't really a 16- or 32-bit Windows exe, since both formats
|
|
|
440 start with a DOS program stub. Note that 16-bit Windows
|
|
|
441 executables use the OS/2 1.x format. */
|
|
|
442
|
|
|
443 IMAGE_DOS_HEADER * dos_header;
|
|
|
444 IMAGE_NT_HEADERS * nt_header;
|
|
|
445
|
|
|
446 dos_header = (PIMAGE_DOS_HEADER) executable.file_base;
|
|
|
447 if (dos_header->e_magic != IMAGE_DOS_SIGNATURE)
|
|
|
448 goto unwind;
|
|
|
449
|
|
|
450 nt_header = (PIMAGE_NT_HEADERS) ((char *) dos_header + dos_header->e_lfanew);
|
|
|
451
|
|
|
452 if ((char *) nt_header > (char *) dos_header + executable.size)
|
|
|
453 {
|
|
|
454 /* Some dos headers (pkunzip) have bogus e_lfanew fields. */
|
|
|
455 *is_dos_app = TRUE;
|
|
|
456 }
|
|
|
457 else if (nt_header->Signature != IMAGE_NT_SIGNATURE &&
|
|
|
458 LOWORD (nt_header->Signature) != IMAGE_OS2_SIGNATURE)
|
|
|
459 {
|
|
|
460 *is_dos_app = TRUE;
|
|
|
461 }
|
|
|
462 else if (nt_header->Signature == IMAGE_NT_SIGNATURE)
|
|
|
463 {
|
|
|
464 /* Look for cygwin.dll in DLL import list. */
|
|
|
465 IMAGE_DATA_DIRECTORY import_dir =
|
|
|
466 nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
|
|
|
467 IMAGE_IMPORT_DESCRIPTOR * imports;
|
|
|
468 IMAGE_SECTION_HEADER * section;
|
|
|
469
|
|
|
470 section = rva_to_section (import_dir.VirtualAddress, nt_header);
|
|
|
471 imports = RVA_TO_PTR (import_dir.VirtualAddress, section, executable);
|
|
|
472
|
|
|
473 for ( ; imports->Name; imports++)
|
|
100
|
474 {
|
|
209
|
475 char * dllname = RVA_TO_PTR (imports->Name, section, executable);
|
|
|
476
|
|
|
477 if (strcmp (dllname, "cygwin.dll") == 0)
|
|
|
478 {
|
|
|
479 *is_cygnus_app = TRUE;
|
|
|
480 break;
|
|
|
481 }
|
|
100
|
482 }
|
|
|
483 }
|
|
209
|
484 }
|
|
|
485
|
|
|
486 unwind:
|
|
|
487 close_file_data (&executable);
|
|
|
488 }
|
|
|
489
|
|
|
490 int
|
|
|
491 compare_env (const char **strp1, const char **strp2)
|
|
|
492 {
|
|
|
493 const char *str1 = *strp1, *str2 = *strp2;
|
|
|
494
|
|
|
495 while (*str1 && *str2 && *str1 != '=' && *str2 != '=')
|
|
|
496 {
|
|
|
497 if ((*str1) > (*str2))
|
|
|
498 return 1;
|
|
|
499 else if ((*str1) < (*str2))
|
|
|
500 return -1;
|
|
|
501 str1++, str2++;
|
|
100
|
502 }
|
|
|
503
|
|
209
|
504 if (*str1 == '=' && *str2 == '=')
|
|
|
505 return 0;
|
|
|
506 else if (*str1 == '=')
|
|
|
507 return -1;
|
|
|
508 else
|
|
|
509 return 1;
|
|
100
|
510 }
|
|
|
511
|
|
209
|
512 void
|
|
|
513 merge_and_sort_env (char **envp1, char **envp2, char **new_envp)
|
|
|
514 {
|
|
|
515 char **optr, **nptr;
|
|
|
516 int num;
|
|
|
517
|
|
|
518 nptr = new_envp;
|
|
|
519 optr = envp1;
|
|
|
520 while (*optr)
|
|
|
521 *nptr++ = *optr++;
|
|
|
522 num = optr - envp1;
|
|
|
523
|
|
|
524 optr = envp2;
|
|
|
525 while (*optr)
|
|
|
526 *nptr++ = *optr++;
|
|
|
527 num += optr - envp2;
|
|
|
528
|
|
|
529 qsort (new_envp, num, sizeof (char *), compare_env);
|
|
|
530
|
|
|
531 *nptr = NULL;
|
|
|
532 }
|
|
100
|
533
|
|
|
534 /* When a new child process is created we need to register it in our list,
|
|
|
535 so intercept spawn requests. */
|
|
|
536 int
|
|
239
|
537 sys_spawnve (int mode, CONST char *cmdname,
|
|
|
538 CONST char * CONST *argv, CONST char *CONST *envp)
|
|
100
|
539 {
|
|
|
540 Lisp_Object program, full;
|
|
|
541 char *cmdline, *env, *parg, **targ;
|
|
209
|
542 int arglen, numenv;
|
|
100
|
543 int pid;
|
|
|
544 child_process *cp;
|
|
209
|
545 int is_dos_app, is_cygnus_app;
|
|
|
546 int do_quoting = 0;
|
|
|
547 char escape_char;
|
|
|
548 /* We pass our process ID to our children by setting up an environment
|
|
|
549 variable in their environment. */
|
|
|
550 char ppid_env_var_buffer[64];
|
|
|
551 char *extra_env[] = {ppid_env_var_buffer, NULL};
|
|
124
|
552 struct gcpro gcpro1;
|
|
|
553
|
|
100
|
554 /* We don't care about the other modes */
|
|
|
555 if (mode != _P_NOWAIT)
|
|
|
556 {
|
|
|
557 errno = EINVAL;
|
|
|
558 return -1;
|
|
|
559 }
|
|
|
560
|
|
|
561 /* Handle executable names without an executable suffix. */
|
|
|
562 program = make_string (cmdname, strlen (cmdname));
|
|
124
|
563 GCPRO1 (program);
|
|
100
|
564 if (NILP (Ffile_executable_p (program)))
|
|
|
565 {
|
|
|
566 full = Qnil;
|
|
|
567 locate_file (Vexec_path, program, EXEC_SUFFIXES, &full, 1);
|
|
|
568 if (NILP (full))
|
|
|
569 {
|
|
124
|
570 UNGCPRO;
|
|
100
|
571 errno = EINVAL;
|
|
|
572 return -1;
|
|
|
573 }
|
|
209
|
574 cmdname = XSTRING_DATA (full);
|
|
239
|
575 /* #### KLUDGE */
|
|
|
576 *(char**)(argv[0]) = cmdname;
|
|
100
|
577 }
|
|
124
|
578 UNGCPRO;
|
|
|
579
|
|
209
|
580 /* make sure argv[0] and cmdname are both in DOS format */
|
|
100
|
581 strcpy (cmdname = alloca (strlen (cmdname) + 1), argv[0]);
|
|
|
582 unixtodos_filename (cmdname);
|
|
239
|
583 /* #### KLUDGE */
|
|
|
584 *(char**)(argv[0]) = cmdname;
|
|
100
|
585
|
|
209
|
586 /* Determine whether program is a 16-bit DOS executable, or a Win32
|
|
|
587 executable that is implicitly linked to the Cygnus dll (implying it
|
|
|
588 was compiled with the Cygnus GNU toolchain and hence relies on
|
|
|
589 cygwin.dll to parse the command line - we use this to decide how to
|
|
|
590 escape quote chars in command line args that must be quoted). */
|
|
|
591 win32_executable_type (cmdname, &is_dos_app, &is_cygnus_app);
|
|
|
592
|
|
|
593 /* On Windows 95, if cmdname is a DOS app, we invoke a helper
|
|
|
594 application to start it by specifying the helper app as cmdname,
|
|
|
595 while leaving the real app name as argv[0]. */
|
|
|
596 if (is_dos_app)
|
|
100
|
597 {
|
|
209
|
598 cmdname = alloca (MAXPATHLEN);
|
|
|
599 if (egetenv ("CMDPROXY"))
|
|
|
600 strcpy (cmdname, egetenv ("CMDPROXY"));
|
|
|
601 else
|
|
|
602 {
|
|
|
603 strcpy (cmdname, XSTRING_DATA (Vinvocation_directory));
|
|
|
604 strcat (cmdname, "cmdproxy.exe");
|
|
|
605 }
|
|
|
606 unixtodos_filename (cmdname);
|
|
100
|
607 }
|
|
|
608
|
|
|
609 /* we have to do some conjuring here to put argv and envp into the
|
|
|
610 form CreateProcess wants... argv needs to be a space separated/null
|
|
|
611 terminated list of parameters, and envp is a null
|
|
|
612 separated/double-null terminated list of parameters.
|
|
|
613
|
|
209
|
614 Additionally, zero-length args and args containing whitespace or
|
|
|
615 quote chars need to be wrapped in double quotes - for this to work,
|
|
|
616 embedded quotes need to be escaped as well. The aim is to ensure
|
|
|
617 the child process reconstructs the argv array we start with
|
|
|
618 exactly, so we treat quotes at the beginning and end of arguments
|
|
|
619 as embedded quotes.
|
|
|
620
|
|
|
621 The Win32 GNU-based library from Cygnus doubles quotes to escape
|
|
|
622 them, while MSVC uses backslash for escaping. (Actually the MSVC
|
|
|
623 startup code does attempt to recognise doubled quotes and accept
|
|
|
624 them, but gets it wrong and ends up requiring three quotes to get a
|
|
|
625 single embedded quote!) So by default we decide whether to use
|
|
|
626 quote or backslash as the escape character based on whether the
|
|
|
627 binary is apparently a Cygnus compiled app.
|
|
|
628
|
|
|
629 Note that using backslash to escape embedded quotes requires
|
|
|
630 additional special handling if an embedded quote is already
|
|
|
631 preceeded by backslash, or if an arg requiring quoting ends with
|
|
|
632 backslash. In such cases, the run of escape characters needs to be
|
|
|
633 doubled. For consistency, we apply this special handling as long
|
|
|
634 as the escape character is not quote.
|
|
100
|
635
|
|
209
|
636 Since we have no idea how large argv and envp are likely to be we
|
|
|
637 figure out list lengths on the fly and allocate them. */
|
|
|
638
|
|
|
639 if (!NILP (Vwin32_quote_process_args))
|
|
|
640 {
|
|
|
641 do_quoting = 1;
|
|
|
642 /* Override escape char by binding win32-quote-process-args to
|
|
|
643 desired character, or use t for auto-selection. */
|
|
|
644 if (INTP (Vwin32_quote_process_args))
|
|
|
645 escape_char = XINT (Vwin32_quote_process_args);
|
|
|
646 else
|
|
|
647 escape_char = is_cygnus_app ? '"' : '\\';
|
|
|
648 }
|
|
100
|
649
|
|
|
650 /* do argv... */
|
|
|
651 arglen = 0;
|
|
|
652 targ = argv;
|
|
|
653 while (*targ)
|
|
|
654 {
|
|
|
655 char * p = *targ;
|
|
209
|
656 int need_quotes = 0;
|
|
|
657 int escape_char_run = 0;
|
|
100
|
658
|
|
|
659 if (*p == 0)
|
|
209
|
660 need_quotes = 1;
|
|
|
661 for ( ; *p; p++)
|
|
|
662 {
|
|
|
663 if (*p == '"')
|
|
100
|
664 {
|
|
209
|
665 /* allow for embedded quotes to be escaped */
|
|
100
|
666 arglen++;
|
|
209
|
667 need_quotes = 1;
|
|
|
668 /* handle the case where the embedded quote is already escaped */
|
|
|
669 if (escape_char_run > 0)
|
|
|
670 {
|
|
|
671 /* To preserve the arg exactly, we need to double the
|
|
|
672 preceding escape characters (plus adding one to
|
|
|
673 escape the quote character itself). */
|
|
|
674 arglen += escape_char_run;
|
|
100
|
675 }
|
|
209
|
676 }
|
|
100
|
677 else if (*p == ' ' || *p == '\t')
|
|
209
|
678 {
|
|
|
679 need_quotes = 1;
|
|
|
680 }
|
|
|
681
|
|
|
682 if (*p == escape_char && escape_char != '"')
|
|
|
683 escape_char_run++;
|
|
|
684 else
|
|
|
685 escape_char_run = 0;
|
|
|
686 }
|
|
|
687 if (need_quotes)
|
|
|
688 {
|
|
100
|
689 arglen += 2;
|
|
209
|
690 /* handle the case where the arg ends with an escape char - we
|
|
|
691 must not let the enclosing quote be escaped. */
|
|
|
692 if (escape_char_run > 0)
|
|
|
693 arglen += escape_char_run;
|
|
|
694 }
|
|
100
|
695 arglen += strlen (*targ++) + 1;
|
|
|
696 }
|
|
|
697 cmdline = alloca (arglen);
|
|
|
698 targ = argv;
|
|
|
699 parg = cmdline;
|
|
|
700 while (*targ)
|
|
|
701 {
|
|
|
702 char * p = *targ;
|
|
209
|
703 int need_quotes = 0;
|
|
100
|
704
|
|
|
705 if (*p == 0)
|
|
209
|
706 need_quotes = 1;
|
|
100
|
707
|
|
209
|
708 if (do_quoting)
|
|
100
|
709 {
|
|
|
710 for ( ; *p; p++)
|
|
|
711 if (*p == ' ' || *p == '\t' || *p == '"')
|
|
209
|
712 need_quotes = 1;
|
|
100
|
713 }
|
|
209
|
714 if (need_quotes)
|
|
100
|
715 {
|
|
209
|
716 int escape_char_run = 0;
|
|
100
|
717 char * first;
|
|
|
718 char * last;
|
|
|
719
|
|
|
720 p = *targ;
|
|
|
721 first = p;
|
|
|
722 last = p + strlen (p) - 1;
|
|
|
723 *parg++ = '"';
|
|
209
|
724 #if 0
|
|
|
725 /* This version does not escape quotes if they occur at the
|
|
|
726 beginning or end of the arg - this could lead to incorrect
|
|
|
727 behaviour when the arg itself represents a command line
|
|
|
728 containing quoted args. I believe this was originally done
|
|
|
729 as a hack to make some things work, before
|
|
|
730 `win32-quote-process-args' was added. */
|
|
100
|
731 while (*p)
|
|
|
732 {
|
|
|
733 if (*p == '"' && p > first && p < last)
|
|
209
|
734 *parg++ = escape_char; /* escape embedded quotes */
|
|
100
|
735 *parg++ = *p++;
|
|
|
736 }
|
|
209
|
737 #else
|
|
|
738 for ( ; *p; p++)
|
|
|
739 {
|
|
|
740 if (*p == '"')
|
|
|
741 {
|
|
|
742 /* double preceding escape chars if any */
|
|
|
743 while (escape_char_run > 0)
|
|
|
744 {
|
|
|
745 *parg++ = escape_char;
|
|
|
746 escape_char_run--;
|
|
|
747 }
|
|
|
748 /* escape all quote chars, even at beginning or end */
|
|
|
749 *parg++ = escape_char;
|
|
|
750 }
|
|
|
751 *parg++ = *p;
|
|
|
752
|
|
|
753 if (*p == escape_char && escape_char != '"')
|
|
|
754 escape_char_run++;
|
|
|
755 else
|
|
|
756 escape_char_run = 0;
|
|
|
757 }
|
|
|
758 /* double escape chars before enclosing quote */
|
|
|
759 while (escape_char_run > 0)
|
|
|
760 {
|
|
|
761 *parg++ = escape_char;
|
|
|
762 escape_char_run--;
|
|
|
763 }
|
|
|
764 #endif
|
|
100
|
765 *parg++ = '"';
|
|
|
766 }
|
|
|
767 else
|
|
|
768 {
|
|
|
769 strcpy (parg, *targ);
|
|
|
770 parg += strlen (*targ);
|
|
|
771 }
|
|
|
772 *parg++ = ' ';
|
|
|
773 targ++;
|
|
|
774 }
|
|
|
775 *--parg = '\0';
|
|
|
776
|
|
|
777 /* and envp... */
|
|
|
778 arglen = 1;
|
|
|
779 targ = envp;
|
|
209
|
780 numenv = 1; /* for end null */
|
|
100
|
781 while (*targ)
|
|
|
782 {
|
|
|
783 arglen += strlen (*targ++) + 1;
|
|
209
|
784 numenv++;
|
|
100
|
785 }
|
|
209
|
786 /* extra env vars... */
|
|
100
|
787 sprintf (ppid_env_var_buffer, "__PARENT_PROCESS_ID=%d",
|
|
|
788 GetCurrentProcessId ());
|
|
|
789 arglen += strlen (ppid_env_var_buffer) + 1;
|
|
209
|
790 numenv++;
|
|
100
|
791
|
|
209
|
792 /* merge env passed in and extra env into one, and sort it. */
|
|
|
793 targ = (char **) alloca (numenv * sizeof (char *));
|
|
|
794 merge_and_sort_env (envp, extra_env, targ);
|
|
|
795
|
|
|
796 /* concatenate env entries. */
|
|
100
|
797 env = alloca (arglen);
|
|
|
798 parg = env;
|
|
|
799 while (*targ)
|
|
|
800 {
|
|
|
801 strcpy (parg, *targ);
|
|
|
802 parg += strlen (*targ++);
|
|
|
803 *parg++ = '\0';
|
|
|
804 }
|
|
|
805 *parg++ = '\0';
|
|
|
806 *parg = '\0';
|
|
|
807
|
|
|
808 cp = new_child ();
|
|
|
809 if (cp == NULL)
|
|
|
810 {
|
|
|
811 errno = EAGAIN;
|
|
|
812 return -1;
|
|
|
813 }
|
|
|
814
|
|
|
815 /* Now create the process. */
|
|
|
816 if (!create_child (cmdname, cmdline, env, &pid, cp))
|
|
|
817 {
|
|
|
818 delete_child (cp);
|
|
|
819 errno = ENOEXEC;
|
|
|
820 return -1;
|
|
|
821 }
|
|
|
822
|
|
|
823 return pid;
|
|
|
824 }
|
|
|
825
|
|
|
826 /* Substitute for certain kill () operations */
|
|
209
|
827
|
|
|
828 static BOOL CALLBACK
|
|
|
829 find_child_console (HWND hwnd, child_process * cp)
|
|
|
830 {
|
|
|
831 DWORD thread_id;
|
|
|
832 DWORD process_id;
|
|
|
833
|
|
|
834 thread_id = GetWindowThreadProcessId (hwnd, &process_id);
|
|
|
835 if (process_id == cp->procinfo.dwProcessId)
|
|
|
836 {
|
|
|
837 char window_class[32];
|
|
|
838
|
|
|
839 GetClassName (hwnd, window_class, sizeof (window_class));
|
|
|
840 if (strcmp (window_class,
|
|
|
841 (os_subtype == OS_WIN95)
|
|
|
842 ? "tty"
|
|
|
843 : "ConsoleWindowClass") == 0)
|
|
|
844 {
|
|
|
845 cp->hwnd = hwnd;
|
|
|
846 return FALSE;
|
|
|
847 }
|
|
|
848 }
|
|
|
849 /* keep looking */
|
|
|
850 return TRUE;
|
|
|
851 }
|
|
|
852
|
|
100
|
853 int
|
|
|
854 sys_kill (int pid, int sig)
|
|
|
855 {
|
|
|
856 child_process *cp;
|
|
|
857 HANDLE proc_hand;
|
|
|
858 int need_to_free = 0;
|
|
|
859 int rc = 0;
|
|
|
860
|
|
|
861 /* Only handle signals that will result in the process dying */
|
|
|
862 if (sig != SIGINT && sig != SIGKILL && sig != SIGQUIT && sig != SIGHUP)
|
|
|
863 {
|
|
|
864 errno = EINVAL;
|
|
|
865 return -1;
|
|
|
866 }
|
|
|
867
|
|
|
868 cp = find_child_pid (pid);
|
|
|
869 if (cp == NULL)
|
|
|
870 {
|
|
|
871 proc_hand = OpenProcess (PROCESS_TERMINATE, 0, pid);
|
|
|
872 if (proc_hand == NULL)
|
|
|
873 {
|
|
|
874 errno = EPERM;
|
|
|
875 return -1;
|
|
|
876 }
|
|
|
877 need_to_free = 1;
|
|
|
878 }
|
|
|
879 else
|
|
|
880 {
|
|
|
881 proc_hand = cp->procinfo.hProcess;
|
|
|
882 pid = cp->procinfo.dwProcessId;
|
|
209
|
883
|
|
|
884 /* Try to locate console window for process. */
|
|
|
885 EnumWindows (find_child_console, (LPARAM) cp);
|
|
100
|
886 }
|
|
|
887
|
|
|
888 if (sig == SIGINT)
|
|
|
889 {
|
|
209
|
890 if (NILP (Vwin32_start_process_share_console) && cp && cp->hwnd)
|
|
|
891 {
|
|
|
892 BYTE control_scan_code = (BYTE) MapVirtualKey (VK_CONTROL, 0);
|
|
|
893 BYTE vk_break_code = VK_CANCEL;
|
|
|
894 BYTE break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
|
|
|
895 HWND foreground_window;
|
|
|
896
|
|
|
897 if (break_scan_code == 0)
|
|
|
898 {
|
|
|
899 /* Fake Ctrl-C if we can't manage Ctrl-Break. */
|
|
|
900 vk_break_code = 'C';
|
|
|
901 break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
|
|
|
902 }
|
|
|
903
|
|
|
904 foreground_window = GetForegroundWindow ();
|
|
|
905 if (foreground_window && SetForegroundWindow (cp->hwnd))
|
|
|
906 {
|
|
|
907 /* Generate keystrokes as if user had typed Ctrl-Break or Ctrl-C. */
|
|
|
908 keybd_event (VK_CONTROL, control_scan_code, 0, 0);
|
|
|
909 keybd_event (vk_break_code, break_scan_code, 0, 0);
|
|
|
910 keybd_event (vk_break_code, break_scan_code, KEYEVENTF_KEYUP, 0);
|
|
|
911 keybd_event (VK_CONTROL, control_scan_code, KEYEVENTF_KEYUP, 0);
|
|
|
912
|
|
|
913 /* Sleep for a bit to give time for Emacs frame to respond
|
|
|
914 to focus change events (if Emacs was active app). */
|
|
|
915 Sleep (10);
|
|
|
916
|
|
|
917 SetForegroundWindow (foreground_window);
|
|
|
918 }
|
|
|
919 }
|
|
100
|
920 /* Ctrl-Break is NT equivalent of SIGINT. */
|
|
209
|
921 else if (!GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, pid))
|
|
100
|
922 {
|
|
|
923 DebPrint (("sys_kill.GenerateConsoleCtrlEvent return %d "
|
|
|
924 "for pid %lu\n", GetLastError (), pid));
|
|
|
925 errno = EINVAL;
|
|
|
926 rc = -1;
|
|
|
927 }
|
|
|
928 }
|
|
|
929 else
|
|
|
930 {
|
|
209
|
931 if (NILP (Vwin32_start_process_share_console) && cp && cp->hwnd)
|
|
|
932 {
|
|
|
933 #if 1
|
|
|
934 if (os_subtype == OS_WIN95)
|
|
|
935 {
|
|
|
936 /*
|
|
|
937 Another possibility is to try terminating the VDM out-right by
|
|
|
938 calling the Shell VxD (id 0x17) V86 interface, function #4
|
|
|
939 "SHELL_Destroy_VM", ie.
|
|
|
940
|
|
|
941 mov edx,4
|
|
|
942 mov ebx,vm_handle
|
|
|
943 call shellapi
|
|
|
944
|
|
|
945 First need to determine the current VM handle, and then arrange for
|
|
|
946 the shellapi call to be made from the system vm (by using
|
|
|
947 Switch_VM_and_callback).
|
|
|
948
|
|
|
949 Could try to invoke DestroyVM through CallVxD.
|
|
|
950
|
|
|
951 */
|
|
|
952 #if 0
|
|
|
953 /* On Win95, posting WM_QUIT causes the 16-bit subsystem
|
|
|
954 to hang when cmdproxy is used in conjunction with
|
|
|
955 command.com for an interactive shell. Posting
|
|
|
956 WM_CLOSE pops up a dialog that, when Yes is selected,
|
|
|
957 does the same thing. TerminateProcess is also less
|
|
|
958 than ideal in that subprocesses tend to stick around
|
|
|
959 until the machine is shutdown, but at least it
|
|
|
960 doesn't freeze the 16-bit subsystem. */
|
|
|
961 PostMessage (cp->hwnd, WM_QUIT, 0xff, 0);
|
|
|
962 #endif
|
|
|
963 if (!TerminateProcess (proc_hand, 0xff))
|
|
|
964 {
|
|
|
965 DebPrint (("sys_kill.TerminateProcess returned %d "
|
|
|
966 "for pid %lu\n", GetLastError (), pid));
|
|
|
967 errno = EINVAL;
|
|
|
968 rc = -1;
|
|
|
969 }
|
|
|
970 }
|
|
|
971 else
|
|
|
972 #endif
|
|
|
973 PostMessage (cp->hwnd, WM_CLOSE, 0, 0);
|
|
|
974 }
|
|
100
|
975 /* Kill the process. On Win32 this doesn't kill child processes
|
|
|
976 so it doesn't work very well for shells which is why it's not
|
|
209
|
977 used in every case. */
|
|
|
978 else if (!TerminateProcess (proc_hand, 0xff))
|
|
100
|
979 {
|
|
|
980 DebPrint (("sys_kill.TerminateProcess returned %d "
|
|
|
981 "for pid %lu\n", GetLastError (), pid));
|
|
|
982 errno = EINVAL;
|
|
|
983 rc = -1;
|
|
|
984 }
|
|
|
985 }
|
|
|
986
|
|
|
987 if (need_to_free)
|
|
|
988 CloseHandle (proc_hand);
|
|
|
989
|
|
|
990 return rc;
|
|
|
991 }
|
|
|
992
|
|
|
993 #if 0
|
|
209
|
994 /* Sync with FSF Emacs 19.34.6 note: ifdef'ed out in XEmacs */
|
|
100
|
995 extern int report_file_error (CONST char *, Lisp_Object);
|
|
|
996 #endif
|
|
|
997 /* The following two routines are used to manipulate stdin, stdout, and
|
|
|
998 stderr of our child processes.
|
|
|
999
|
|
|
1000 Assuming that in, out, and err are *not* inheritable, we make them
|
|
|
1001 stdin, stdout, and stderr of the child as follows:
|
|
|
1002
|
|
|
1003 - Save the parent's current standard handles.
|
|
|
1004 - Set the std handles to inheritable duplicates of the ones being passed in.
|
|
|
1005 (Note that _get_osfhandle() is an io.h procedure that retrieves the
|
|
|
1006 NT file handle for a crt file descriptor.)
|
|
|
1007 - Spawn the child, which inherits in, out, and err as stdin,
|
|
|
1008 stdout, and stderr. (see Spawnve)
|
|
|
1009 - Close the std handles passed to the child.
|
|
|
1010 - Reset the parent's standard handles to the saved handles.
|
|
|
1011 (see reset_standard_handles)
|
|
|
1012 We assume that the caller closes in, out, and err after calling us. */
|
|
|
1013
|
|
|
1014 void
|
|
|
1015 prepare_standard_handles (int in, int out, int err, HANDLE handles[3])
|
|
|
1016 {
|
|
|
1017 HANDLE parent;
|
|
|
1018 HANDLE newstdin, newstdout, newstderr;
|
|
|
1019
|
|
|
1020 parent = GetCurrentProcess ();
|
|
|
1021
|
|
|
1022 handles[0] = GetStdHandle (STD_INPUT_HANDLE);
|
|
|
1023 handles[1] = GetStdHandle (STD_OUTPUT_HANDLE);
|
|
|
1024 handles[2] = GetStdHandle (STD_ERROR_HANDLE);
|
|
|
1025
|
|
|
1026 /* make inheritable copies of the new handles */
|
|
|
1027 if (!DuplicateHandle (parent,
|
|
|
1028 (HANDLE) _get_osfhandle (in),
|
|
|
1029 parent,
|
|
|
1030 &newstdin,
|
|
|
1031 0,
|
|
|
1032 TRUE,
|
|
|
1033 DUPLICATE_SAME_ACCESS))
|
|
|
1034 report_file_error ("Duplicating input handle for child", Qnil);
|
|
|
1035
|
|
|
1036 if (!DuplicateHandle (parent,
|
|
|
1037 (HANDLE) _get_osfhandle (out),
|
|
|
1038 parent,
|
|
|
1039 &newstdout,
|
|
|
1040 0,
|
|
|
1041 TRUE,
|
|
|
1042 DUPLICATE_SAME_ACCESS))
|
|
|
1043 report_file_error ("Duplicating output handle for child", Qnil);
|
|
|
1044
|
|
|
1045 if (!DuplicateHandle (parent,
|
|
|
1046 (HANDLE) _get_osfhandle (err),
|
|
|
1047 parent,
|
|
|
1048 &newstderr,
|
|
|
1049 0,
|
|
|
1050 TRUE,
|
|
|
1051 DUPLICATE_SAME_ACCESS))
|
|
|
1052 report_file_error ("Duplicating error handle for child", Qnil);
|
|
|
1053
|
|
|
1054 /* and store them as our std handles */
|
|
|
1055 if (!SetStdHandle (STD_INPUT_HANDLE, newstdin))
|
|
|
1056 report_file_error ("Changing stdin handle", Qnil);
|
|
|
1057
|
|
|
1058 if (!SetStdHandle (STD_OUTPUT_HANDLE, newstdout))
|
|
|
1059 report_file_error ("Changing stdout handle", Qnil);
|
|
|
1060
|
|
|
1061 if (!SetStdHandle (STD_ERROR_HANDLE, newstderr))
|
|
|
1062 report_file_error ("Changing stderr handle", Qnil);
|
|
|
1063 }
|
|
|
1064
|
|
|
1065 void
|
|
|
1066 reset_standard_handles (int in, int out, int err, HANDLE handles[3])
|
|
|
1067 {
|
|
|
1068 /* close the duplicated handles passed to the child */
|
|
|
1069 CloseHandle (GetStdHandle (STD_INPUT_HANDLE));
|
|
|
1070 CloseHandle (GetStdHandle (STD_OUTPUT_HANDLE));
|
|
|
1071 CloseHandle (GetStdHandle (STD_ERROR_HANDLE));
|
|
|
1072
|
|
|
1073 /* now restore parent's saved std handles */
|
|
|
1074 SetStdHandle (STD_INPUT_HANDLE, handles[0]);
|
|
|
1075 SetStdHandle (STD_OUTPUT_HANDLE, handles[1]);
|
|
|
1076 SetStdHandle (STD_ERROR_HANDLE, handles[2]);
|
|
|
1077 }
|
|
|
1078
|
|
209
|
1079 void
|
|
288
|
1080 set_process_dir (const char * dir)
|
|
209
|
1081 {
|
|
|
1082 process_dir = dir;
|
|
|
1083 }
|
|
100
|
1084
|
|
209
|
1085 /* Some miscellaneous functions that are Windows specific, but not GUI
|
|
|
1086 specific (ie. are applicable in terminal or batch mode as well). */
|
|
|
1087
|
|
|
1088 /* lifted from fileio.c */
|
|
|
1089 #define CORRECT_DIR_SEPS(s) \
|
|
|
1090 do { if ('/' == DIRECTORY_SEP) dostounix_filename (s); \
|
|
|
1091 else unixtodos_filename (s); \
|
|
|
1092 } while (0)
|
|
|
1093
|
|
|
1094 DEFUN ("win32-short-file-name", Fwin32_short_file_name, 1, 1, "", /*
|
|
|
1095 Return the short file name version (8.3) of the full path of FILENAME.
|
|
|
1096 If FILENAME does not exist, return nil.
|
|
|
1097 All path elements in FILENAME are converted to their short names.
|
|
|
1098 */
|
|
|
1099 (filename))
|
|
|
1100 {
|
|
|
1101 char shortname[MAX_PATH];
|
|
|
1102
|
|
288
|
1103 CHECK_STRING (filename);
|
|
209
|
1104
|
|
|
1105 /* first expand it. */
|
|
|
1106 filename = Fexpand_file_name (filename, Qnil);
|
|
|
1107
|
|
|
1108 /* luckily, this returns the short version of each element in the path. */
|
|
|
1109 if (GetShortPathName (XSTRING_DATA (filename), shortname, MAX_PATH) == 0)
|
|
|
1110 return Qnil;
|
|
|
1111
|
|
|
1112 CORRECT_DIR_SEPS (shortname);
|
|
|
1113
|
|
|
1114 return build_string (shortname);
|
|
|
1115 }
|
|
|
1116
|
|
|
1117
|
|
|
1118 DEFUN ("win32-long-file-name", Fwin32_long_file_name, 1, 1, "", /*
|
|
|
1119 Return the long file name version of the full path of FILENAME.
|
|
|
1120 If FILENAME does not exist, return nil.
|
|
|
1121 All path elements in FILENAME are converted to their long names.
|
|
|
1122 */
|
|
|
1123 (filename))
|
|
|
1124 {
|
|
|
1125 char longname[ MAX_PATH ];
|
|
|
1126
|
|
288
|
1127 CHECK_STRING (filename);
|
|
209
|
1128
|
|
|
1129 /* first expand it. */
|
|
|
1130 filename = Fexpand_file_name (filename, Qnil);
|
|
|
1131
|
|
|
1132 if (!win32_get_long_filename (XSTRING_DATA (filename), longname, MAX_PATH))
|
|
|
1133 return Qnil;
|
|
|
1134
|
|
|
1135 CORRECT_DIR_SEPS (longname);
|
|
|
1136
|
|
|
1137 return build_string (longname);
|
|
|
1138 }
|
|
|
1139
|
|
|
1140 DEFUN ("win32-set-process-priority", Fwin32_set_process_priority, 2, 2, "", /*
|
|
|
1141 Set the priority of PROCESS to PRIORITY.
|
|
|
1142 If PROCESS is nil, the priority of Emacs is changed, otherwise the
|
|
|
1143 priority of the process whose pid is PROCESS is changed.
|
|
|
1144 PRIORITY should be one of the symbols high, normal, or low;
|
|
|
1145 any other symbol will be interpreted as normal.
|
|
|
1146
|
|
|
1147 If successful, the return value is t, otherwise nil.
|
|
|
1148 */
|
|
|
1149 (process, priority))
|
|
|
1150 {
|
|
|
1151 HANDLE proc_handle = GetCurrentProcess ();
|
|
|
1152 DWORD priority_class = NORMAL_PRIORITY_CLASS;
|
|
|
1153 Lisp_Object result = Qnil;
|
|
|
1154
|
|
288
|
1155 CHECK_SYMBOL (priority);
|
|
209
|
1156
|
|
|
1157 if (!NILP (process))
|
|
|
1158 {
|
|
|
1159 DWORD pid;
|
|
|
1160 child_process *cp;
|
|
|
1161
|
|
|
1162 CHECK_INT (process);
|
|
|
1163
|
|
|
1164 /* Allow pid to be an internally generated one, or one obtained
|
|
|
1165 externally. This is necessary because real pids on Win95 are
|
|
|
1166 negative. */
|
|
|
1167
|
|
|
1168 pid = XINT (process);
|
|
|
1169 cp = find_child_pid (pid);
|
|
|
1170 if (cp != NULL)
|
|
|
1171 pid = cp->procinfo.dwProcessId;
|
|
|
1172
|
|
|
1173 proc_handle = OpenProcess (PROCESS_SET_INFORMATION, FALSE, pid);
|
|
|
1174 }
|
|
|
1175
|
|
|
1176 if (EQ (priority, Qhigh))
|
|
|
1177 priority_class = HIGH_PRIORITY_CLASS;
|
|
|
1178 else if (EQ (priority, Qlow))
|
|
|
1179 priority_class = IDLE_PRIORITY_CLASS;
|
|
|
1180
|
|
|
1181 if (proc_handle != NULL)
|
|
|
1182 {
|
|
|
1183 if (SetPriorityClass (proc_handle, priority_class))
|
|
|
1184 result = Qt;
|
|
|
1185 if (!NILP (process))
|
|
|
1186 CloseHandle (proc_handle);
|
|
|
1187 }
|
|
|
1188
|
|
|
1189 return result;
|
|
|
1190 }
|
|
|
1191
|
|
|
1192
|
|
|
1193 DEFUN ("win32-get-locale-info", Fwin32_get_locale_info, 1, 2, "", /*
|
|
|
1194 "Return information about the Windows locale LCID.
|
|
|
1195 By default, return a three letter locale code which encodes the default
|
|
|
1196 language as the first two characters, and the country or regionial variant
|
|
|
1197 as the third letter. For example, ENU refers to `English (United States)',
|
|
|
1198 while ENC means `English (Canadian)'.
|
|
|
1199
|
|
|
1200 If the optional argument LONGFORM is non-nil, the long form of the locale
|
|
|
1201 name is returned, e.g. `English (United States)' instead.
|
|
|
1202
|
|
|
1203 If LCID (a 16-bit number) is not a valid locale, the result is nil.
|
|
|
1204 */
|
|
|
1205 (lcid, longform))
|
|
|
1206 {
|
|
|
1207 int got_abbrev;
|
|
|
1208 int got_full;
|
|
|
1209 char abbrev_name[32] = { 0 };
|
|
|
1210 char full_name[256] = { 0 };
|
|
|
1211
|
|
|
1212 CHECK_INT (lcid);
|
|
|
1213
|
|
|
1214 if (!IsValidLocale (XINT (lcid), LCID_SUPPORTED))
|
|
|
1215 return Qnil;
|
|
|
1216
|
|
|
1217 if (NILP (longform))
|
|
|
1218 {
|
|
|
1219 got_abbrev = GetLocaleInfo (XINT (lcid),
|
|
|
1220 LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP,
|
|
|
1221 abbrev_name, sizeof (abbrev_name));
|
|
|
1222 if (got_abbrev)
|
|
|
1223 return build_string (abbrev_name);
|
|
|
1224 }
|
|
|
1225 else
|
|
|
1226 {
|
|
|
1227 got_full = GetLocaleInfo (XINT (lcid),
|
|
|
1228 LOCALE_SLANGUAGE | LOCALE_USE_CP_ACP,
|
|
|
1229 full_name, sizeof (full_name));
|
|
|
1230 if (got_full)
|
|
|
1231 return build_string (full_name);
|
|
|
1232 }
|
|
|
1233
|
|
|
1234 return Qnil;
|
|
|
1235 }
|
|
|
1236
|
|
|
1237
|
|
|
1238 DEFUN ("win32-get-current-locale-id", Fwin32_get_current_locale_id, 0, 0, "", /*
|
|
|
1239 "Return Windows locale id for current locale setting.
|
|
|
1240 This is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1241 human-readable form.
|
|
|
1242 */
|
|
|
1243 ())
|
|
|
1244 {
|
|
|
1245 return make_int (GetThreadLocale ());
|
|
|
1246 }
|
|
|
1247
|
|
|
1248
|
|
|
1249 DEFUN ("win32-get-default-locale-id", Fwin32_get_default_locale_id, 0, 1, "", /*
|
|
|
1250 "Return Windows locale id for default locale setting.
|
|
|
1251 By default, the system default locale setting is returned; if the optional
|
|
|
1252 parameter USERP is non-nil, the user default locale setting is returned.
|
|
|
1253 This is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1254 human-readable form.
|
|
|
1255 */
|
|
|
1256 (userp))
|
|
|
1257 {
|
|
|
1258 if (NILP (userp))
|
|
|
1259 return make_int (GetSystemDefaultLCID ());
|
|
|
1260 return make_int (GetUserDefaultLCID ());
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 DWORD int_from_hex (char * s)
|
|
|
1264 {
|
|
|
1265 DWORD val = 0;
|
|
|
1266 static char hex[] = "0123456789abcdefABCDEF";
|
|
|
1267 char * p;
|
|
|
1268
|
|
|
1269 while (*s && (p = strchr(hex, *s)) != NULL)
|
|
|
1270 {
|
|
|
1271 unsigned digit = p - hex;
|
|
|
1272 if (digit > 15)
|
|
|
1273 digit -= 6;
|
|
|
1274 val = val * 16 + digit;
|
|
|
1275 s++;
|
|
|
1276 }
|
|
|
1277 return val;
|
|
|
1278 }
|
|
|
1279
|
|
|
1280 /* We need to build a global list, since the EnumSystemLocale callback
|
|
|
1281 function isn't given a context pointer. */
|
|
|
1282 Lisp_Object Vwin32_valid_locale_ids;
|
|
|
1283
|
|
|
1284 BOOL CALLBACK enum_locale_fn (LPTSTR localeNum)
|
|
|
1285 {
|
|
|
1286 DWORD id = int_from_hex (localeNum);
|
|
|
1287 Vwin32_valid_locale_ids = Fcons (make_int (id), Vwin32_valid_locale_ids);
|
|
|
1288 return TRUE;
|
|
|
1289 }
|
|
|
1290
|
|
|
1291 DEFUN ("win32-get-valid-locale-ids", Fwin32_get_valid_locale_ids, 0, 0, "", /*
|
|
|
1292 Return list of all valid Windows locale ids.
|
|
|
1293 Each id is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1294 human-readable form.
|
|
|
1295 */
|
|
|
1296 ())
|
|
|
1297 {
|
|
|
1298 Vwin32_valid_locale_ids = Qnil;
|
|
|
1299
|
|
|
1300 EnumSystemLocales (enum_locale_fn, LCID_SUPPORTED);
|
|
|
1301
|
|
|
1302 Vwin32_valid_locale_ids = Fnreverse (Vwin32_valid_locale_ids);
|
|
|
1303 return Vwin32_valid_locale_ids;
|
|
|
1304 }
|
|
|
1305
|
|
|
1306
|
|
|
1307 DEFUN ("win32-set-current-locale", Fwin32_set_current_locale, 1, 1, "", /*
|
|
|
1308 Make Windows locale LCID be the current locale setting for Emacs.
|
|
|
1309 If successful, the new locale id is returned, otherwise nil.
|
|
|
1310 */
|
|
|
1311 (lcid))
|
|
|
1312 {
|
|
|
1313 CHECK_INT (lcid);
|
|
|
1314
|
|
|
1315 if (!IsValidLocale (XINT (lcid), LCID_SUPPORTED))
|
|
|
1316 return Qnil;
|
|
|
1317
|
|
|
1318 if (!SetThreadLocale (XINT (lcid)))
|
|
|
1319 return Qnil;
|
|
|
1320
|
|
|
1321 /* Sync with FSF Emacs 19.34.6 note: dwWinThreadId declared in
|
|
|
1322 w32term.h and defined in w32fns.c, both of which are not in current
|
|
|
1323 XEmacs. ### Check what we lose by ifdef'ing out these. --marcpa */
|
|
|
1324 #if 0
|
|
|
1325 /* Need to set input thread locale if present. */
|
|
|
1326 if (dwWinThreadId)
|
|
|
1327 /* Reply is not needed. */
|
|
|
1328 PostThreadMessage (dwWinThreadId, WM_EMACS_SETLOCALE, XINT (lcid), 0);
|
|
|
1329 #endif
|
|
|
1330
|
|
|
1331 return make_int (GetThreadLocale ());
|
|
|
1332 }
|
|
|
1333
|
|
|
1334
|
|
288
|
1335 void
|
|
100
|
1336 syms_of_ntproc ()
|
|
|
1337 {
|
|
209
|
1338 Qhigh = intern ("high");
|
|
|
1339 Qlow = intern ("low");
|
|
|
1340
|
|
|
1341 DEFSUBR (Fwin32_short_file_name);
|
|
|
1342 DEFSUBR (Fwin32_long_file_name);
|
|
|
1343 DEFSUBR (Fwin32_set_process_priority);
|
|
|
1344 DEFSUBR (Fwin32_get_locale_info);
|
|
|
1345 DEFSUBR (Fwin32_get_current_locale_id);
|
|
|
1346 DEFSUBR (Fwin32_get_default_locale_id);
|
|
|
1347 DEFSUBR (Fwin32_get_valid_locale_ids);
|
|
|
1348 DEFSUBR (Fwin32_set_current_locale);
|
|
100
|
1349
|
|
|
1350 DEFVAR_LISP ("win32-quote-process-args", &Vwin32_quote_process_args /*
|
|
209
|
1351 Non-nil enables quoting of process arguments to ensure correct parsing.
|
|
100
|
1352 Because Windows does not directly pass argv arrays to child processes,
|
|
|
1353 programs have to reconstruct the argv array by parsing the command
|
|
|
1354 line string. For an argument to contain a space, it must be enclosed
|
|
|
1355 in double quotes or it will be parsed as multiple arguments.
|
|
|
1356
|
|
209
|
1357 If the value is a character, that character will be used to escape any
|
|
|
1358 quote characters that appear, otherwise a suitable escape character
|
|
|
1359 will be chosen based on the type of the program.
|
|
|
1360 */ );
|
|
|
1361 Vwin32_quote_process_args = Qt;
|
|
|
1362
|
|
|
1363 DEFVAR_LISP ("win32-start-process-show-window",
|
|
|
1364 &Vwin32_start_process_show_window /*
|
|
|
1365 When nil, processes started via start-process hide their windows.
|
|
|
1366 When non-nil, they show their window in the method of their choice.
|
|
|
1367 */ );
|
|
|
1368 Vwin32_start_process_show_window = Qnil;
|
|
|
1369
|
|
|
1370 DEFVAR_LISP ("win32-start-process-share-console",
|
|
|
1371 &Vwin32_start_process_share_console /*
|
|
|
1372 When nil, processes started via start-process are given a new console.
|
|
|
1373 When non-nil, they share the Emacs console; this has the limitation of
|
|
|
1374 allowing only only DOS subprocess to run at a time (whether started directly
|
|
|
1375 or indirectly by Emacs), and preventing Emacs from cleanly terminating the
|
|
|
1376 subprocess group, but may allow Emacs to interrupt a subprocess that doesn't
|
|
|
1377 otherwise respond to interrupts from Emacs.
|
|
|
1378 */ );
|
|
|
1379 Vwin32_start_process_share_console = Qnil;
|
|
100
|
1380
|
|
282
|
1381 DEFVAR_LISP ("win32-pipe-read-delay", &Vwin32_pipe_read_delay /*
|
|
209
|
1382 Forced delay before reading subprocess output.
|
|
100
|
1383 This is done to improve the buffering of subprocess output, by
|
|
|
1384 avoiding the inefficiency of frequently reading small amounts of data.
|
|
|
1385
|
|
|
1386 If positive, the value is the number of milliseconds to sleep before
|
|
|
1387 reading the subprocess output. If negative, the magnitude is the number
|
|
|
1388 of time slices to wait (effectively boosting the priority of the child
|
|
209
|
1389 process temporarily). A value of zero disables waiting entirely.
|
|
|
1390 */ );
|
|
282
|
1391 Vwin32_pipe_read_delay = make_int (50);
|
|
100
|
1392
|
|
209
|
1393 #if 0
|
|
|
1394 DEFVAR_LISP ("win32-generate-fake-inodes", &Vwin32_generate_fake_inodes /*
|
|
|
1395 "Non-nil means attempt to fake realistic inode values.
|
|
|
1396 This works by hashing the truename of files, and should detect
|
|
|
1397 aliasing between long and short (8.3 DOS) names, but can have
|
|
|
1398 false positives because of hash collisions. Note that determing
|
|
|
1399 the truename of a file can be slow.
|
|
|
1400 */ );
|
|
|
1401 Vwin32_generate_fake_inodes = Qnil;
|
|
|
1402 #endif
|
|
100
|
1403 }
|
|
|
1404 /* end of ntproc.c */
|
