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428
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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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25 /* Synced with FSF Emacs 19.34.6 by Marc Paquette <marcpa@cam.org> */
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26
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27 #include <config.h>
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28 #undef signal
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29 #undef wait
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30 #undef spawnve
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31 #undef select
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32 #undef kill
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33
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34 #include <windows.h>
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35 #ifdef HAVE_A_OUT_H
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36 #include <a.out.h>
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37 #endif
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38 #include "lisp.h"
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39 #include "sysproc.h"
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40 #include "nt.h"
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41 #include "ntheap.h" /* From 19.34.6 */
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42 #include "systime.h"
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43 #include "syssignal.h"
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44 #include "sysfile.h"
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45 #include "syswait.h"
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46 #include "buffer.h"
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47 #include "process.h"
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442
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48
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49 #include "console-msw.h"
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50
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428
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51 /*#include "w32term.h"*/ /* From 19.34.6: sync in ? --marcpa */
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52
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53 /* #### I'm not going to play with shit. */
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54 #pragma warning (disable:4013 4024 4090)
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55
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56 /* Control whether spawnve quotes arguments as necessary to ensure
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57 correct parsing by child process. Because not all uses of spawnve
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58 are careful about constructing argv arrays, we make this behavior
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59 conditional (off by default). */
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60 Lisp_Object Vwin32_quote_process_args;
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61
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62 /* Control whether create_child causes the process' window to be
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63 hidden. The default is nil. */
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64 Lisp_Object Vwin32_start_process_show_window;
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65
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66 /* Control whether create_child causes the process to inherit Emacs'
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67 console window, or be given a new one of its own. The default is
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68 nil, to allow multiple DOS programs to run on Win95. Having separate
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69 consoles also allows Emacs to cleanly terminate process groups. */
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70 Lisp_Object Vwin32_start_process_share_console;
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71
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72 /* Time to sleep before reading from a subprocess output pipe - this
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73 avoids the inefficiency of frequently reading small amounts of data.
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74 This is primarily necessary for handling DOS processes on Windows 95,
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75 but is useful for Win32 processes on both Win95 and NT as well. */
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76 Lisp_Object Vwin32_pipe_read_delay;
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77
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442
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78 /* Control whether xemacs_stat() attempts to generate fake but hopefully
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428
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79 "accurate" inode values, by hashing the absolute truenames of files.
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80 This should detect aliasing between long and short names, but still
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81 allows the possibility of hash collisions. */
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82 Lisp_Object Vwin32_generate_fake_inodes;
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83
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84 Lisp_Object Qhigh, Qlow;
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85
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86 extern Lisp_Object Vlisp_EXEC_SUFFIXES;
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87
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88 #ifndef DEBUG_XEMACS
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89 __inline
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90 #endif
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91 void _DebPrint (const char *fmt, ...)
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92 {
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93 #ifdef DEBUG_XEMACS
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94 char buf[1024];
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95 va_list args;
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96
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97 va_start (args, fmt);
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98 vsprintf (buf, fmt, args);
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99 va_end (args);
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100 OutputDebugString (buf);
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101 #endif
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102 }
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103
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442
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104 /* sys_signal moved to nt.c. It's now called mswindows_signal... */
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428
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105
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106 /* Defined in <process.h> which conflicts with the local copy */
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107 #define _P_NOWAIT 1
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108
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109 /* Child process management list. */
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110 int child_proc_count = 0;
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111 child_process child_procs[ MAX_CHILDREN ];
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112 child_process *dead_child = NULL;
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113
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114 DWORD WINAPI reader_thread (void *arg);
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115
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116 /* Find an unused process slot. */
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117 child_process *
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118 new_child (void)
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119 {
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120 child_process *cp;
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121 DWORD id;
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122
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123 for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
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124 if (!CHILD_ACTIVE (cp))
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125 goto Initialize;
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126 if (child_proc_count == MAX_CHILDREN)
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127 return NULL;
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128 cp = &child_procs[child_proc_count++];
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129
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130 Initialize:
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131 xzero (*cp);
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132 cp->fd = -1;
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133 cp->pid = -1;
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134 if (cp->procinfo.hProcess)
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135 CloseHandle(cp->procinfo.hProcess);
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136 cp->procinfo.hProcess = NULL;
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137 cp->status = STATUS_READ_ERROR;
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138
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139 /* use manual reset event so that select() will function properly */
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140 cp->char_avail = CreateEvent (NULL, TRUE, FALSE, NULL);
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141 if (cp->char_avail)
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142 {
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143 cp->char_consumed = CreateEvent (NULL, FALSE, FALSE, NULL);
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144 if (cp->char_consumed)
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145 {
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146 cp->thrd = CreateThread (NULL, 1024, reader_thread, cp, 0, &id);
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147 if (cp->thrd)
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148 return cp;
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149 }
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150 }
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151 delete_child (cp);
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152 return NULL;
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153 }
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154
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155 void
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156 delete_child (child_process *cp)
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157 {
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158 int i;
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159
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160 /* Should not be deleting a child that is still needed. */
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161 for (i = 0; i < MAXDESC; i++)
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162 if (fd_info[i].cp == cp)
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163 abort ();
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164
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165 if (!CHILD_ACTIVE (cp))
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166 return;
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167
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168 /* reap thread if necessary */
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169 if (cp->thrd)
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170 {
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171 DWORD rc;
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172
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173 if (GetExitCodeThread (cp->thrd, &rc) && rc == STILL_ACTIVE)
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174 {
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175 /* let the thread exit cleanly if possible */
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176 cp->status = STATUS_READ_ERROR;
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177 SetEvent (cp->char_consumed);
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178 if (WaitForSingleObject (cp->thrd, 1000) != WAIT_OBJECT_0)
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179 {
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180 DebPrint (("delete_child.WaitForSingleObject (thread) failed "
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181 "with %lu for fd %ld\n", GetLastError (), cp->fd));
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182 TerminateThread (cp->thrd, 0);
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183 }
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184 }
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185 CloseHandle (cp->thrd);
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186 cp->thrd = NULL;
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187 }
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188 if (cp->char_avail)
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189 {
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190 CloseHandle (cp->char_avail);
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191 cp->char_avail = NULL;
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192 }
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193 if (cp->char_consumed)
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194 {
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195 CloseHandle (cp->char_consumed);
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196 cp->char_consumed = NULL;
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197 }
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198
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199 /* update child_proc_count (highest numbered slot in use plus one) */
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200 if (cp == child_procs + child_proc_count - 1)
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201 {
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202 for (i = child_proc_count-1; i >= 0; i--)
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203 if (CHILD_ACTIVE (&child_procs[i]))
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204 {
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205 child_proc_count = i + 1;
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206 break;
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207 }
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208 }
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209 if (i < 0)
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210 child_proc_count = 0;
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211 }
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212
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213 /* Find a child by pid. */
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214 static child_process *
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215 find_child_pid (DWORD pid)
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216 {
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217 child_process *cp;
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218
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219 for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
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220 if (CHILD_ACTIVE (cp) && pid == cp->pid)
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221 return cp;
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222 return NULL;
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223 }
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224
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225 /* Function to do blocking read of one byte, needed to implement
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226 select. It is only allowed on sockets and pipes. */
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227 static int
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228 _sys_read_ahead (int fd)
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229 {
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230 child_process * cp;
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231 int rc = 0;
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232
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233 if (fd < 0 || fd >= MAXDESC)
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234 return STATUS_READ_ERROR;
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235
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236 cp = fd_info[fd].cp;
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237
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238 if (cp == NULL || cp->fd != fd || cp->status != STATUS_READ_READY)
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239 return STATUS_READ_ERROR;
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240
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241 if ((fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET)) == 0
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242 || (fd_info[fd].flags & FILE_READ) == 0)
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243 {
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244 /* fd is not a pipe or socket */
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245 abort ();
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246 }
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247
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248 cp->status = STATUS_READ_IN_PROGRESS;
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249
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250 if (fd_info[fd].flags & FILE_PIPE)
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251 {
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252 rc = _read (fd, &cp->chr, sizeof (char));
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253
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254 /* Give subprocess time to buffer some more output for us before
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255 reporting that input is available; we need this because Win95
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256 connects DOS programs to pipes by making the pipe appear to be
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257 the normal console stdout - as a result most DOS programs will
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258 write to stdout without buffering, ie. one character at a
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259 time. Even some Win32 programs do this - "dir" in a command
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260 shell on NT is very slow if we don't do this. */
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261 if (rc > 0)
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262 {
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263 int wait = XINT (Vwin32_pipe_read_delay);
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264
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265 if (wait > 0)
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266 Sleep (wait);
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267 else if (wait < 0)
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268 while (++wait <= 0)
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269 /* Yield remainder of our time slice, effectively giving a
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270 temporary priority boost to the child process. */
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271 Sleep (0);
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272 }
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273 }
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274
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275 if (rc == sizeof (char))
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276 cp->status = STATUS_READ_SUCCEEDED;
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277 else
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278 cp->status = STATUS_READ_FAILED;
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279
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280 return cp->status;
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281 }
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282
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283 /* Thread proc for child process and socket reader threads. Each thread
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284 is normally blocked until woken by select() to check for input by
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285 reading one char. When the read completes, char_avail is signalled
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286 to wake up the select emulator and the thread blocks itself again. */
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287 DWORD WINAPI
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288 reader_thread (void *arg)
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289 {
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290 child_process *cp;
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291
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292 /* Our identity */
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293 cp = (child_process *)arg;
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294
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295 /* <matts@tibco.com> - I think the test below is wrong - we don't
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296 want to wait for someone to signal char_consumed, as we haven't
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297 read anything for them to consume yet! */
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298
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299 /*
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300 if (cp == NULL ||
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301 WaitForSingleObject (cp->char_consumed, INFINITE) != WAIT_OBJECT_0)
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302 */
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303
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304 if (cp == NULL)
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305 {
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306 return 1;
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307 }
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308
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309 for (;;)
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310 {
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311 int rc;
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312
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313 rc = _sys_read_ahead (cp->fd);
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314
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315 /* The name char_avail is a misnomer - it really just means the
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316 read-ahead has completed, whether successfully or not. */
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317 if (!SetEvent (cp->char_avail))
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318 {
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319 DebPrint (("reader_thread.SetEvent failed with %lu for fd %ld\n",
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320 GetLastError (), cp->fd));
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321 return 1;
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322 }
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323
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324 if (rc == STATUS_READ_ERROR)
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325 {
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326 /* We are finished, so clean up handles and set to NULL so
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327 that CHILD_ACTIVE will see what is going on */
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328 if (cp->char_avail) {
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329 CloseHandle (cp->char_avail);
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330 cp->char_avail = NULL;
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331 }
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332 if (cp->thrd) {
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333 CloseHandle (cp->thrd);
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334 cp->thrd = NULL;
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335 }
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336 if (cp->char_consumed) {
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337 CloseHandle(cp->char_consumed);
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338 cp->char_consumed = NULL;
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339 }
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340 if (cp->procinfo.hProcess)
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341 {
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342 CloseHandle (cp->procinfo.hProcess);
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343 cp->procinfo.hProcess=NULL;
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344 }
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345 return 1;
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346 }
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347
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348 /* If the read died, the child has died so let the thread die */
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349 if (rc == STATUS_READ_FAILED)
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350 break;
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351
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352 /* Wait until our input is acknowledged before reading again */
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353 if (WaitForSingleObject (cp->char_consumed, INFINITE) != WAIT_OBJECT_0)
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354 {
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355 DebPrint (("reader_thread.WaitForSingleObject failed with "
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356 "%lu for fd %ld\n", GetLastError (), cp->fd));
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357 break;
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358 }
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359 }
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360 /* We are finished, so clean up handles and set to NULL so that
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361 CHILD_ACTIVE will see what is going on */
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362 if (cp->char_avail) {
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363 CloseHandle (cp->char_avail);
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364 cp->char_avail = NULL;
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365 }
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366 if (cp->thrd) {
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367 CloseHandle (cp->thrd);
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368 cp->thrd = NULL;
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369 }
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370 if (cp->char_consumed) {
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371 CloseHandle(cp->char_consumed);
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372 cp->char_consumed = NULL;
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373 }
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374 if (cp->procinfo.hProcess)
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375 {
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376 CloseHandle (cp->procinfo.hProcess);
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377 cp->procinfo.hProcess=NULL;
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378 }
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379
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380 return 0;
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381 }
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382
|
|
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383 /* To avoid Emacs changing directory, we just record here the directory
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384 the new process should start in. This is set just before calling
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385 sys_spawnve, and is not generally valid at any other time. */
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386 static const char * process_dir;
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387
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|
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388 static BOOL
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|
442
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389 create_child (const char *exe, char *cmdline, char *env,
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428
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390 int * pPid, child_process *cp)
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|
|
391 {
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392 STARTUPINFO start;
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393 SECURITY_ATTRIBUTES sec_attrs;
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394 SECURITY_DESCRIPTOR sec_desc;
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395 char dir[ MAXPATHLEN ];
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396
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397 if (cp == NULL) abort ();
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398
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399 xzero (start);
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400 start.cb = sizeof (start);
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401
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402 if (NILP (Vwin32_start_process_show_window))
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403 start.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
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404 else
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405 start.dwFlags = STARTF_USESTDHANDLES;
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406 start.wShowWindow = SW_HIDE;
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407
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408 start.hStdInput = GetStdHandle (STD_INPUT_HANDLE);
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409 start.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE);
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410 start.hStdError = GetStdHandle (STD_ERROR_HANDLE);
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|
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411
|
|
|
412 /* Explicitly specify no security */
|
|
442
|
413 /* #### not supported under win98, but will go away */
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|
428
|
414 if (!InitializeSecurityDescriptor (&sec_desc, SECURITY_DESCRIPTOR_REVISION))
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|
|
415 goto EH_Fail;
|
|
442
|
416 /* #### not supported under win98, but will go away */
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|
428
|
417 if (!SetSecurityDescriptorDacl (&sec_desc, TRUE, NULL, FALSE))
|
|
|
418 goto EH_Fail;
|
|
|
419 sec_attrs.nLength = sizeof (sec_attrs);
|
|
|
420 sec_attrs.lpSecurityDescriptor = &sec_desc;
|
|
|
421 sec_attrs.bInheritHandle = FALSE;
|
|
|
422
|
|
|
423 strcpy (dir, process_dir);
|
|
|
424 unixtodos_filename (dir);
|
|
|
425
|
|
|
426 if (!CreateProcess (exe, cmdline, &sec_attrs, NULL, TRUE,
|
|
|
427 (!NILP (Vwin32_start_process_share_console)
|
|
|
428 ? CREATE_NEW_PROCESS_GROUP
|
|
|
429 : CREATE_NEW_CONSOLE),
|
|
|
430 env, dir,
|
|
|
431 &start, &cp->procinfo))
|
|
|
432 goto EH_Fail;
|
|
|
433
|
|
|
434 cp->pid = (int) cp->procinfo.dwProcessId;
|
|
|
435
|
|
|
436 CloseHandle (cp->procinfo.hThread);
|
|
|
437 CloseHandle (cp->procinfo.hProcess);
|
|
|
438 cp->procinfo.hThread=NULL;
|
|
|
439 cp->procinfo.hProcess=NULL;
|
|
|
440
|
|
432
|
441 /* pid must fit in a Lisp_Int */
|
|
428
|
442
|
|
|
443
|
|
|
444 *pPid = cp->pid;
|
|
|
445
|
|
|
446 return TRUE;
|
|
|
447
|
|
|
448 EH_Fail:
|
|
|
449 DebPrint (("create_child.CreateProcess failed: %ld\n", GetLastError()););
|
|
|
450 return FALSE;
|
|
|
451 }
|
|
|
452
|
|
|
453 void
|
|
|
454 merge_and_sort_env (char **envp1, char **envp2, char **new_envp)
|
|
|
455 {
|
|
|
456 char **optr, **nptr;
|
|
|
457 int num;
|
|
|
458
|
|
|
459 nptr = new_envp;
|
|
|
460 optr = envp1;
|
|
|
461 while (*optr)
|
|
|
462 *nptr++ = *optr++;
|
|
|
463 num = optr - envp1;
|
|
|
464
|
|
|
465 optr = envp2;
|
|
|
466 while (*optr)
|
|
|
467 *nptr++ = *optr++;
|
|
|
468 num += optr - envp2;
|
|
|
469
|
|
442
|
470 qsort (new_envp, num, sizeof (char*), compare_env);
|
|
428
|
471
|
|
|
472 *nptr = NULL;
|
|
|
473 }
|
|
|
474
|
|
|
475 /* When a new child process is created we need to register it in our list,
|
|
|
476 so intercept spawn requests. */
|
|
|
477 int
|
|
442
|
478 sys_spawnve (int mode, const char *cmdname,
|
|
|
479 const char * const *argv, const char *const *envp)
|
|
428
|
480 {
|
|
|
481 Lisp_Object program, full;
|
|
|
482 char *cmdline, *env, *parg, **targ;
|
|
|
483 int arglen, numenv;
|
|
|
484 int pid;
|
|
|
485 child_process *cp;
|
|
|
486 int is_dos_app, is_cygnus_app;
|
|
|
487 int do_quoting = 0;
|
|
|
488 char escape_char = 0;
|
|
|
489 /* We pass our process ID to our children by setting up an environment
|
|
|
490 variable in their environment. */
|
|
|
491 char ppid_env_var_buffer[64];
|
|
|
492 char *extra_env[] = {ppid_env_var_buffer, NULL};
|
|
|
493 struct gcpro gcpro1;
|
|
|
494
|
|
|
495 /* We don't care about the other modes */
|
|
|
496 if (mode != _P_NOWAIT)
|
|
|
497 {
|
|
|
498 errno = EINVAL;
|
|
|
499 return -1;
|
|
|
500 }
|
|
|
501
|
|
|
502 /* Handle executable names without an executable suffix. */
|
|
442
|
503 program = build_string (cmdname);
|
|
428
|
504 GCPRO1 (program);
|
|
|
505 if (NILP (Ffile_executable_p (program)))
|
|
|
506 {
|
|
|
507 full = Qnil;
|
|
|
508 locate_file (Vexec_path, program, Vlisp_EXEC_SUFFIXES, &full, 1);
|
|
|
509 if (NILP (full))
|
|
|
510 {
|
|
|
511 UNGCPRO;
|
|
|
512 errno = EINVAL;
|
|
|
513 return -1;
|
|
|
514 }
|
|
440
|
515 TO_EXTERNAL_FORMAT (LISP_STRING, full,
|
|
|
516 C_STRING_ALLOCA, cmdname,
|
|
|
517 Qfile_name);
|
|
428
|
518 }
|
|
|
519 else
|
|
|
520 {
|
|
442
|
521 cmdname = (char*)alloca (strlen (argv[0]) + 1);
|
|
428
|
522 strcpy ((char*)cmdname, argv[0]);
|
|
|
523 }
|
|
|
524 UNGCPRO;
|
|
|
525
|
|
|
526 /* make sure argv[0] and cmdname are both in DOS format */
|
|
|
527 unixtodos_filename ((char*)cmdname);
|
|
|
528 /* #### KLUDGE */
|
|
442
|
529 ((const char**)argv)[0] = cmdname;
|
|
428
|
530
|
|
|
531 /* Determine whether program is a 16-bit DOS executable, or a Win32
|
|
|
532 executable that is implicitly linked to the Cygnus dll (implying it
|
|
|
533 was compiled with the Cygnus GNU toolchain and hence relies on
|
|
|
534 cygwin.dll to parse the command line - we use this to decide how to
|
|
|
535 escape quote chars in command line args that must be quoted). */
|
|
442
|
536 mswindows_executable_type (cmdname, &is_dos_app, &is_cygnus_app);
|
|
428
|
537
|
|
|
538 /* On Windows 95, if cmdname is a DOS app, we invoke a helper
|
|
|
539 application to start it by specifying the helper app as cmdname,
|
|
|
540 while leaving the real app name as argv[0]. */
|
|
|
541 if (is_dos_app)
|
|
|
542 {
|
|
442
|
543 cmdname = (char*) alloca (MAXPATHLEN);
|
|
428
|
544 if (egetenv ("CMDPROXY"))
|
|
|
545 strcpy ((char*)cmdname, egetenv ("CMDPROXY"));
|
|
|
546 else
|
|
|
547 {
|
|
|
548 strcpy ((char*)cmdname, XSTRING_DATA (Vinvocation_directory));
|
|
|
549 strcat ((char*)cmdname, "cmdproxy.exe");
|
|
|
550 }
|
|
|
551 unixtodos_filename ((char*)cmdname);
|
|
|
552 }
|
|
|
553
|
|
|
554 /* we have to do some conjuring here to put argv and envp into the
|
|
|
555 form CreateProcess wants... argv needs to be a space separated/null
|
|
|
556 terminated list of parameters, and envp is a null
|
|
|
557 separated/double-null terminated list of parameters.
|
|
|
558
|
|
|
559 Additionally, zero-length args and args containing whitespace or
|
|
|
560 quote chars need to be wrapped in double quotes - for this to work,
|
|
|
561 embedded quotes need to be escaped as well. The aim is to ensure
|
|
|
562 the child process reconstructs the argv array we start with
|
|
|
563 exactly, so we treat quotes at the beginning and end of arguments
|
|
|
564 as embedded quotes.
|
|
|
565
|
|
|
566 The Win32 GNU-based library from Cygnus doubles quotes to escape
|
|
|
567 them, while MSVC uses backslash for escaping. (Actually the MSVC
|
|
|
568 startup code does attempt to recognize doubled quotes and accept
|
|
|
569 them, but gets it wrong and ends up requiring three quotes to get a
|
|
|
570 single embedded quote!) So by default we decide whether to use
|
|
|
571 quote or backslash as the escape character based on whether the
|
|
|
572 binary is apparently a Cygnus compiled app.
|
|
|
573
|
|
|
574 Note that using backslash to escape embedded quotes requires
|
|
|
575 additional special handling if an embedded quote is already
|
|
|
576 preceded by backslash, or if an arg requiring quoting ends with
|
|
|
577 backslash. In such cases, the run of escape characters needs to be
|
|
|
578 doubled. For consistency, we apply this special handling as long
|
|
|
579 as the escape character is not quote.
|
|
|
580
|
|
|
581 Since we have no idea how large argv and envp are likely to be we
|
|
|
582 figure out list lengths on the fly and allocate them. */
|
|
|
583
|
|
|
584 if (!NILP (Vwin32_quote_process_args))
|
|
|
585 {
|
|
|
586 do_quoting = 1;
|
|
|
587 /* Override escape char by binding win32-quote-process-args to
|
|
|
588 desired character, or use t for auto-selection. */
|
|
|
589 if (INTP (Vwin32_quote_process_args))
|
|
442
|
590 escape_char = (char) XINT (Vwin32_quote_process_args);
|
|
428
|
591 else
|
|
|
592 escape_char = is_cygnus_app ? '"' : '\\';
|
|
|
593 }
|
|
|
594
|
|
|
595 /* do argv... */
|
|
|
596 arglen = 0;
|
|
|
597 targ = (char**)argv;
|
|
|
598 while (*targ)
|
|
|
599 {
|
|
|
600 char * p = *targ;
|
|
|
601 int need_quotes = 0;
|
|
|
602 int escape_char_run = 0;
|
|
|
603
|
|
|
604 if (*p == 0)
|
|
|
605 need_quotes = 1;
|
|
|
606 for ( ; *p; p++)
|
|
|
607 {
|
|
|
608 if (*p == '"')
|
|
|
609 {
|
|
|
610 /* allow for embedded quotes to be escaped */
|
|
|
611 arglen++;
|
|
|
612 need_quotes = 1;
|
|
|
613 /* handle the case where the embedded quote is already escaped */
|
|
|
614 if (escape_char_run > 0)
|
|
|
615 {
|
|
|
616 /* To preserve the arg exactly, we need to double the
|
|
|
617 preceding escape characters (plus adding one to
|
|
|
618 escape the quote character itself). */
|
|
|
619 arglen += escape_char_run;
|
|
|
620 }
|
|
|
621 }
|
|
|
622 else if (*p == ' ' || *p == '\t')
|
|
|
623 {
|
|
|
624 need_quotes = 1;
|
|
|
625 }
|
|
|
626
|
|
|
627 if (*p == escape_char && escape_char != '"')
|
|
|
628 escape_char_run++;
|
|
|
629 else
|
|
|
630 escape_char_run = 0;
|
|
|
631 }
|
|
|
632 if (need_quotes)
|
|
|
633 {
|
|
|
634 arglen += 2;
|
|
|
635 /* handle the case where the arg ends with an escape char - we
|
|
|
636 must not let the enclosing quote be escaped. */
|
|
|
637 if (escape_char_run > 0)
|
|
|
638 arglen += escape_char_run;
|
|
|
639 }
|
|
|
640 arglen += strlen (*targ++) + 1;
|
|
|
641 }
|
|
442
|
642 cmdline = (char*) alloca (arglen);
|
|
428
|
643 targ = (char**)argv;
|
|
|
644 parg = cmdline;
|
|
|
645 while (*targ)
|
|
|
646 {
|
|
|
647 char * p = *targ;
|
|
|
648 int need_quotes = 0;
|
|
|
649
|
|
|
650 if (*p == 0)
|
|
|
651 need_quotes = 1;
|
|
|
652
|
|
|
653 if (do_quoting)
|
|
|
654 {
|
|
|
655 for ( ; *p; p++)
|
|
|
656 if (*p == ' ' || *p == '\t' || *p == '"')
|
|
|
657 need_quotes = 1;
|
|
|
658 }
|
|
|
659 if (need_quotes)
|
|
|
660 {
|
|
|
661 int escape_char_run = 0;
|
|
|
662 char * first;
|
|
|
663 char * last;
|
|
|
664
|
|
|
665 p = *targ;
|
|
|
666 first = p;
|
|
|
667 last = p + strlen (p) - 1;
|
|
|
668 *parg++ = '"';
|
|
|
669 #if 0
|
|
|
670 /* This version does not escape quotes if they occur at the
|
|
|
671 beginning or end of the arg - this could lead to incorrect
|
|
|
672 behavior when the arg itself represents a command line
|
|
|
673 containing quoted args. I believe this was originally done
|
|
|
674 as a hack to make some things work, before
|
|
|
675 `win32-quote-process-args' was added. */
|
|
|
676 while (*p)
|
|
|
677 {
|
|
|
678 if (*p == '"' && p > first && p < last)
|
|
|
679 *parg++ = escape_char; /* escape embedded quotes */
|
|
|
680 *parg++ = *p++;
|
|
|
681 }
|
|
|
682 #else
|
|
|
683 for ( ; *p; p++)
|
|
|
684 {
|
|
|
685 if (*p == '"')
|
|
|
686 {
|
|
|
687 /* double preceding escape chars if any */
|
|
|
688 while (escape_char_run > 0)
|
|
|
689 {
|
|
|
690 *parg++ = escape_char;
|
|
|
691 escape_char_run--;
|
|
|
692 }
|
|
|
693 /* escape all quote chars, even at beginning or end */
|
|
|
694 *parg++ = escape_char;
|
|
|
695 }
|
|
|
696 *parg++ = *p;
|
|
|
697
|
|
|
698 if (*p == escape_char && escape_char != '"')
|
|
|
699 escape_char_run++;
|
|
|
700 else
|
|
|
701 escape_char_run = 0;
|
|
|
702 }
|
|
|
703 /* double escape chars before enclosing quote */
|
|
|
704 while (escape_char_run > 0)
|
|
|
705 {
|
|
|
706 *parg++ = escape_char;
|
|
|
707 escape_char_run--;
|
|
|
708 }
|
|
|
709 #endif
|
|
|
710 *parg++ = '"';
|
|
|
711 }
|
|
|
712 else
|
|
|
713 {
|
|
|
714 strcpy (parg, *targ);
|
|
|
715 parg += strlen (*targ);
|
|
|
716 }
|
|
|
717 *parg++ = ' ';
|
|
|
718 targ++;
|
|
|
719 }
|
|
|
720 *--parg = '\0';
|
|
|
721
|
|
|
722 /* and envp... */
|
|
|
723 arglen = 1;
|
|
442
|
724 targ = (char**) envp;
|
|
428
|
725 numenv = 1; /* for end null */
|
|
|
726 while (*targ)
|
|
|
727 {
|
|
|
728 arglen += strlen (*targ++) + 1;
|
|
|
729 numenv++;
|
|
|
730 }
|
|
|
731 /* extra env vars... */
|
|
|
732 sprintf (ppid_env_var_buffer, "__PARENT_PROCESS_ID=%d",
|
|
|
733 GetCurrentProcessId ());
|
|
|
734 arglen += strlen (ppid_env_var_buffer) + 1;
|
|
|
735 numenv++;
|
|
|
736
|
|
|
737 /* merge env passed in and extra env into one, and sort it. */
|
|
442
|
738 targ = (char **) alloca (numenv * sizeof (char*));
|
|
|
739 merge_and_sort_env ((char**) envp, extra_env, targ);
|
|
428
|
740
|
|
|
741 /* concatenate env entries. */
|
|
442
|
742 env = (char*) alloca (arglen);
|
|
428
|
743 parg = env;
|
|
|
744 while (*targ)
|
|
|
745 {
|
|
|
746 strcpy (parg, *targ);
|
|
|
747 parg += strlen (*targ++);
|
|
|
748 *parg++ = '\0';
|
|
|
749 }
|
|
|
750 *parg++ = '\0';
|
|
|
751 *parg = '\0';
|
|
|
752
|
|
|
753 cp = new_child ();
|
|
|
754 if (cp == NULL)
|
|
|
755 {
|
|
|
756 errno = EAGAIN;
|
|
|
757 return -1;
|
|
|
758 }
|
|
|
759
|
|
|
760 /* Now create the process. */
|
|
|
761 if (!create_child (cmdname, cmdline, env, &pid, cp))
|
|
|
762 {
|
|
|
763 delete_child (cp);
|
|
|
764 errno = ENOEXEC;
|
|
|
765 return -1;
|
|
|
766 }
|
|
|
767
|
|
|
768 return pid;
|
|
|
769 }
|
|
|
770
|
|
|
771 /* Substitute for certain kill () operations */
|
|
|
772
|
|
|
773 static BOOL CALLBACK
|
|
|
774 find_child_console (HWND hwnd, child_process * cp)
|
|
|
775 {
|
|
|
776 DWORD thread_id;
|
|
|
777 DWORD process_id;
|
|
|
778
|
|
|
779 thread_id = GetWindowThreadProcessId (hwnd, &process_id);
|
|
|
780 if (process_id == cp->procinfo.dwProcessId)
|
|
|
781 {
|
|
|
782 char window_class[32];
|
|
|
783
|
|
|
784 GetClassName (hwnd, window_class, sizeof (window_class));
|
|
|
785 if (strcmp (window_class,
|
|
442
|
786 mswindows_windows9x_p()
|
|
428
|
787 ? "tty"
|
|
|
788 : "ConsoleWindowClass") == 0)
|
|
|
789 {
|
|
|
790 cp->hwnd = hwnd;
|
|
|
791 return FALSE;
|
|
|
792 }
|
|
|
793 }
|
|
|
794 /* keep looking */
|
|
|
795 return TRUE;
|
|
|
796 }
|
|
|
797
|
|
|
798 int
|
|
|
799 sys_kill (int pid, int sig)
|
|
|
800 {
|
|
|
801 child_process *cp;
|
|
|
802 HANDLE proc_hand;
|
|
|
803 int need_to_free = 0;
|
|
|
804 int rc = 0;
|
|
|
805
|
|
|
806 /* Only handle signals that will result in the process dying */
|
|
|
807 if (sig != SIGINT && sig != SIGKILL && sig != SIGQUIT && sig != SIGHUP)
|
|
|
808 {
|
|
|
809 errno = EINVAL;
|
|
|
810 return -1;
|
|
|
811 }
|
|
|
812
|
|
|
813 cp = find_child_pid (pid);
|
|
|
814 if (cp == NULL)
|
|
|
815 {
|
|
|
816 proc_hand = OpenProcess (PROCESS_TERMINATE, 0, pid);
|
|
|
817 if (proc_hand == NULL)
|
|
|
818 {
|
|
|
819 errno = EPERM;
|
|
|
820 return -1;
|
|
|
821 }
|
|
|
822 need_to_free = 1;
|
|
|
823 }
|
|
|
824 else
|
|
|
825 {
|
|
|
826 proc_hand = cp->procinfo.hProcess;
|
|
|
827 pid = cp->procinfo.dwProcessId;
|
|
|
828
|
|
|
829 /* Try to locate console window for process. */
|
|
|
830 EnumWindows ((WNDENUMPROC)find_child_console, (LPARAM) cp);
|
|
|
831 }
|
|
|
832
|
|
|
833 if (sig == SIGINT)
|
|
|
834 {
|
|
|
835 if (NILP (Vwin32_start_process_share_console) && cp && cp->hwnd)
|
|
|
836 {
|
|
|
837 BYTE control_scan_code = (BYTE) MapVirtualKey (VK_CONTROL, 0);
|
|
|
838 BYTE vk_break_code = VK_CANCEL;
|
|
|
839 BYTE break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
|
|
|
840 HWND foreground_window;
|
|
|
841
|
|
|
842 if (break_scan_code == 0)
|
|
|
843 {
|
|
|
844 /* Fake Ctrl-C if we can't manage Ctrl-Break. */
|
|
|
845 vk_break_code = 'C';
|
|
|
846 break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
|
|
|
847 }
|
|
|
848
|
|
|
849 foreground_window = GetForegroundWindow ();
|
|
|
850 if (foreground_window && SetForegroundWindow (cp->hwnd))
|
|
|
851 {
|
|
|
852 /* Generate keystrokes as if user had typed Ctrl-Break or Ctrl-C. */
|
|
|
853 keybd_event (VK_CONTROL, control_scan_code, 0, 0);
|
|
|
854 keybd_event (vk_break_code, break_scan_code, 0, 0);
|
|
|
855 keybd_event (vk_break_code, break_scan_code, KEYEVENTF_KEYUP, 0);
|
|
|
856 keybd_event (VK_CONTROL, control_scan_code, KEYEVENTF_KEYUP, 0);
|
|
|
857
|
|
|
858 /* Sleep for a bit to give time for Emacs frame to respond
|
|
|
859 to focus change events (if Emacs was active app). */
|
|
|
860 Sleep (10);
|
|
|
861
|
|
|
862 SetForegroundWindow (foreground_window);
|
|
|
863 }
|
|
|
864 }
|
|
|
865 /* Ctrl-Break is NT equivalent of SIGINT. */
|
|
|
866 else if (!GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, pid))
|
|
|
867 {
|
|
|
868 DebPrint (("sys_kill.GenerateConsoleCtrlEvent return %d "
|
|
|
869 "for pid %lu\n", GetLastError (), pid));
|
|
|
870 errno = EINVAL;
|
|
|
871 rc = -1;
|
|
|
872 }
|
|
|
873 }
|
|
|
874 else
|
|
|
875 {
|
|
|
876 if (NILP (Vwin32_start_process_share_console) && cp && cp->hwnd)
|
|
|
877 {
|
|
|
878 #if 1
|
|
442
|
879 if (mswindows_windows9x_p())
|
|
428
|
880 {
|
|
|
881 /*
|
|
|
882 Another possibility is to try terminating the VDM out-right by
|
|
|
883 calling the Shell VxD (id 0x17) V86 interface, function #4
|
|
|
884 "SHELL_Destroy_VM", ie.
|
|
|
885
|
|
|
886 mov edx,4
|
|
|
887 mov ebx,vm_handle
|
|
|
888 call shellapi
|
|
|
889
|
|
|
890 First need to determine the current VM handle, and then arrange for
|
|
|
891 the shellapi call to be made from the system vm (by using
|
|
|
892 Switch_VM_and_callback).
|
|
|
893
|
|
|
894 Could try to invoke DestroyVM through CallVxD.
|
|
|
895
|
|
|
896 */
|
|
|
897 #if 0
|
|
|
898 /* On Win95, posting WM_QUIT causes the 16-bit subsystem
|
|
|
899 to hang when cmdproxy is used in conjunction with
|
|
|
900 command.com for an interactive shell. Posting
|
|
|
901 WM_CLOSE pops up a dialog that, when Yes is selected,
|
|
|
902 does the same thing. TerminateProcess is also less
|
|
|
903 than ideal in that subprocesses tend to stick around
|
|
|
904 until the machine is shutdown, but at least it
|
|
|
905 doesn't freeze the 16-bit subsystem. */
|
|
|
906 PostMessage (cp->hwnd, WM_QUIT, 0xff, 0);
|
|
|
907 #endif
|
|
|
908 if (!TerminateProcess (proc_hand, 0xff))
|
|
|
909 {
|
|
|
910 DebPrint (("sys_kill.TerminateProcess returned %d "
|
|
|
911 "for pid %lu\n", GetLastError (), pid));
|
|
|
912 errno = EINVAL;
|
|
|
913 rc = -1;
|
|
|
914 }
|
|
|
915 }
|
|
|
916 else
|
|
|
917 #endif
|
|
|
918 PostMessage (cp->hwnd, WM_CLOSE, 0, 0);
|
|
|
919 }
|
|
|
920 /* Kill the process. On Win32 this doesn't kill child processes
|
|
|
921 so it doesn't work very well for shells which is why it's not
|
|
|
922 used in every case. */
|
|
|
923 else if (!TerminateProcess (proc_hand, 0xff))
|
|
|
924 {
|
|
|
925 DebPrint (("sys_kill.TerminateProcess returned %d "
|
|
|
926 "for pid %lu\n", GetLastError (), pid));
|
|
|
927 errno = EINVAL;
|
|
|
928 rc = -1;
|
|
|
929 }
|
|
|
930 }
|
|
|
931
|
|
|
932 if (need_to_free)
|
|
|
933 CloseHandle (proc_hand);
|
|
|
934
|
|
|
935 return rc;
|
|
|
936 }
|
|
|
937
|
|
|
938 #if 0
|
|
|
939 /* Sync with FSF Emacs 19.34.6 note: ifdef'ed out in XEmacs */
|
|
442
|
940 extern int report_file_error (const char *, Lisp_Object);
|
|
428
|
941 #endif
|
|
|
942 /* The following two routines are used to manipulate stdin, stdout, and
|
|
|
943 stderr of our child processes.
|
|
|
944
|
|
|
945 Assuming that in, out, and err are *not* inheritable, we make them
|
|
|
946 stdin, stdout, and stderr of the child as follows:
|
|
|
947
|
|
|
948 - Save the parent's current standard handles.
|
|
|
949 - Set the std handles to inheritable duplicates of the ones being passed in.
|
|
|
950 (Note that _get_osfhandle() is an io.h procedure that retrieves the
|
|
|
951 NT file handle for a crt file descriptor.)
|
|
|
952 - Spawn the child, which inherits in, out, and err as stdin,
|
|
|
953 stdout, and stderr. (see Spawnve)
|
|
|
954 - Close the std handles passed to the child.
|
|
|
955 - Reset the parent's standard handles to the saved handles.
|
|
|
956 (see reset_standard_handles)
|
|
|
957 We assume that the caller closes in, out, and err after calling us. */
|
|
|
958
|
|
|
959 void
|
|
|
960 prepare_standard_handles (int in, int out, int err, HANDLE handles[3])
|
|
|
961 {
|
|
|
962 HANDLE parent;
|
|
|
963 HANDLE newstdin, newstdout, newstderr;
|
|
|
964
|
|
|
965 parent = GetCurrentProcess ();
|
|
|
966
|
|
|
967 handles[0] = GetStdHandle (STD_INPUT_HANDLE);
|
|
|
968 handles[1] = GetStdHandle (STD_OUTPUT_HANDLE);
|
|
|
969 handles[2] = GetStdHandle (STD_ERROR_HANDLE);
|
|
|
970
|
|
|
971 /* make inheritable copies of the new handles */
|
|
|
972 if (!DuplicateHandle (parent,
|
|
|
973 (HANDLE) _get_osfhandle (in),
|
|
|
974 parent,
|
|
|
975 &newstdin,
|
|
|
976 0,
|
|
|
977 TRUE,
|
|
|
978 DUPLICATE_SAME_ACCESS))
|
|
|
979 report_file_error ("Duplicating input handle for child", Qnil);
|
|
|
980
|
|
|
981 if (!DuplicateHandle (parent,
|
|
|
982 (HANDLE) _get_osfhandle (out),
|
|
|
983 parent,
|
|
|
984 &newstdout,
|
|
|
985 0,
|
|
|
986 TRUE,
|
|
|
987 DUPLICATE_SAME_ACCESS))
|
|
|
988 report_file_error ("Duplicating output handle for child", Qnil);
|
|
|
989
|
|
|
990 if (!DuplicateHandle (parent,
|
|
|
991 (HANDLE) _get_osfhandle (err),
|
|
|
992 parent,
|
|
|
993 &newstderr,
|
|
|
994 0,
|
|
|
995 TRUE,
|
|
|
996 DUPLICATE_SAME_ACCESS))
|
|
|
997 report_file_error ("Duplicating error handle for child", Qnil);
|
|
|
998
|
|
|
999 /* and store them as our std handles */
|
|
|
1000 if (!SetStdHandle (STD_INPUT_HANDLE, newstdin))
|
|
|
1001 report_file_error ("Changing stdin handle", Qnil);
|
|
|
1002
|
|
|
1003 if (!SetStdHandle (STD_OUTPUT_HANDLE, newstdout))
|
|
|
1004 report_file_error ("Changing stdout handle", Qnil);
|
|
|
1005
|
|
|
1006 if (!SetStdHandle (STD_ERROR_HANDLE, newstderr))
|
|
|
1007 report_file_error ("Changing stderr handle", Qnil);
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 void
|
|
|
1011 reset_standard_handles (int in, int out, int err, HANDLE handles[3])
|
|
|
1012 {
|
|
|
1013 /* close the duplicated handles passed to the child */
|
|
|
1014 CloseHandle (GetStdHandle (STD_INPUT_HANDLE));
|
|
|
1015 CloseHandle (GetStdHandle (STD_OUTPUT_HANDLE));
|
|
|
1016 CloseHandle (GetStdHandle (STD_ERROR_HANDLE));
|
|
|
1017
|
|
|
1018 /* now restore parent's saved std handles */
|
|
|
1019 SetStdHandle (STD_INPUT_HANDLE, handles[0]);
|
|
|
1020 SetStdHandle (STD_OUTPUT_HANDLE, handles[1]);
|
|
|
1021 SetStdHandle (STD_ERROR_HANDLE, handles[2]);
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 void
|
|
|
1025 set_process_dir (const char * dir)
|
|
|
1026 {
|
|
|
1027 process_dir = dir;
|
|
|
1028 }
|
|
|
1029
|
|
|
1030 /* Some miscellaneous functions that are Windows specific, but not GUI
|
|
|
1031 specific (ie. are applicable in terminal or batch mode as well). */
|
|
|
1032
|
|
|
1033 DEFUN ("win32-short-file-name", Fwin32_short_file_name, 1, 1, "", /*
|
|
|
1034 Return the short file name version (8.3) of the full path of FILENAME.
|
|
|
1035 If FILENAME does not exist, return nil.
|
|
|
1036 All path elements in FILENAME are converted to their short names.
|
|
|
1037 */
|
|
|
1038 (filename))
|
|
|
1039 {
|
|
|
1040 char shortname[MAX_PATH];
|
|
|
1041
|
|
|
1042 CHECK_STRING (filename);
|
|
|
1043
|
|
|
1044 /* first expand it. */
|
|
|
1045 filename = Fexpand_file_name (filename, Qnil);
|
|
|
1046
|
|
|
1047 /* luckily, this returns the short version of each element in the path. */
|
|
|
1048 if (GetShortPathName (XSTRING_DATA (filename), shortname, MAX_PATH) == 0)
|
|
|
1049 return Qnil;
|
|
|
1050
|
|
|
1051 CORRECT_DIR_SEPS (shortname);
|
|
|
1052
|
|
|
1053 return build_string (shortname);
|
|
|
1054 }
|
|
|
1055
|
|
|
1056
|
|
|
1057 DEFUN ("win32-long-file-name", Fwin32_long_file_name, 1, 1, "", /*
|
|
|
1058 Return the long file name version of the full path of FILENAME.
|
|
|
1059 If FILENAME does not exist, return nil.
|
|
|
1060 All path elements in FILENAME are converted to their long names.
|
|
|
1061 */
|
|
|
1062 (filename))
|
|
|
1063 {
|
|
|
1064 char longname[ MAX_PATH ];
|
|
|
1065
|
|
|
1066 CHECK_STRING (filename);
|
|
|
1067
|
|
|
1068 /* first expand it. */
|
|
|
1069 filename = Fexpand_file_name (filename, Qnil);
|
|
|
1070
|
|
|
1071 if (!win32_get_long_filename (XSTRING_DATA (filename), longname, MAX_PATH))
|
|
|
1072 return Qnil;
|
|
|
1073
|
|
|
1074 CORRECT_DIR_SEPS (longname);
|
|
|
1075
|
|
|
1076 return build_string (longname);
|
|
|
1077 }
|
|
|
1078
|
|
|
1079 DEFUN ("win32-set-process-priority", Fwin32_set_process_priority, 2, 2, "", /*
|
|
|
1080 Set the priority of PROCESS to PRIORITY.
|
|
|
1081 If PROCESS is nil, the priority of Emacs is changed, otherwise the
|
|
|
1082 priority of the process whose pid is PROCESS is changed.
|
|
|
1083 PRIORITY should be one of the symbols high, normal, or low;
|
|
|
1084 any other symbol will be interpreted as normal.
|
|
|
1085
|
|
|
1086 If successful, the return value is t, otherwise nil.
|
|
|
1087 */
|
|
|
1088 (process, priority))
|
|
|
1089 {
|
|
|
1090 HANDLE proc_handle = GetCurrentProcess ();
|
|
|
1091 DWORD priority_class = NORMAL_PRIORITY_CLASS;
|
|
|
1092 Lisp_Object result = Qnil;
|
|
|
1093
|
|
|
1094 CHECK_SYMBOL (priority);
|
|
|
1095
|
|
|
1096 if (!NILP (process))
|
|
|
1097 {
|
|
|
1098 DWORD pid;
|
|
|
1099 child_process *cp;
|
|
|
1100
|
|
|
1101 CHECK_INT (process);
|
|
|
1102
|
|
|
1103 /* Allow pid to be an internally generated one, or one obtained
|
|
|
1104 externally. This is necessary because real pids on Win95 are
|
|
|
1105 negative. */
|
|
|
1106
|
|
|
1107 pid = XINT (process);
|
|
|
1108 cp = find_child_pid (pid);
|
|
|
1109 if (cp != NULL)
|
|
|
1110 pid = cp->procinfo.dwProcessId;
|
|
|
1111
|
|
|
1112 proc_handle = OpenProcess (PROCESS_SET_INFORMATION, FALSE, pid);
|
|
|
1113 }
|
|
|
1114
|
|
|
1115 if (EQ (priority, Qhigh))
|
|
|
1116 priority_class = HIGH_PRIORITY_CLASS;
|
|
|
1117 else if (EQ (priority, Qlow))
|
|
|
1118 priority_class = IDLE_PRIORITY_CLASS;
|
|
|
1119
|
|
|
1120 if (proc_handle != NULL)
|
|
|
1121 {
|
|
|
1122 if (SetPriorityClass (proc_handle, priority_class))
|
|
|
1123 result = Qt;
|
|
|
1124 if (!NILP (process))
|
|
|
1125 CloseHandle (proc_handle);
|
|
|
1126 }
|
|
|
1127
|
|
|
1128 return result;
|
|
|
1129 }
|
|
|
1130
|
|
|
1131
|
|
|
1132 DEFUN ("win32-get-locale-info", Fwin32_get_locale_info, 1, 2, "", /*
|
|
|
1133 "Return information about the Windows locale LCID.
|
|
|
1134 By default, return a three letter locale code which encodes the default
|
|
|
1135 language as the first two characters, and the country or regional variant
|
|
|
1136 as the third letter. For example, ENU refers to `English (United States)',
|
|
|
1137 while ENC means `English (Canadian)'.
|
|
|
1138
|
|
|
1139 If the optional argument LONGFORM is non-nil, the long form of the locale
|
|
|
1140 name is returned, e.g. `English (United States)' instead.
|
|
|
1141
|
|
|
1142 If LCID (a 16-bit number) is not a valid locale, the result is nil.
|
|
|
1143 */
|
|
|
1144 (lcid, longform))
|
|
|
1145 {
|
|
|
1146 int got_abbrev;
|
|
|
1147 int got_full;
|
|
|
1148 char abbrev_name[32] = { 0 };
|
|
|
1149 char full_name[256] = { 0 };
|
|
|
1150
|
|
|
1151 CHECK_INT (lcid);
|
|
|
1152
|
|
|
1153 if (!IsValidLocale (XINT (lcid), LCID_SUPPORTED))
|
|
|
1154 return Qnil;
|
|
|
1155
|
|
|
1156 if (NILP (longform))
|
|
|
1157 {
|
|
|
1158 got_abbrev = GetLocaleInfo (XINT (lcid),
|
|
|
1159 LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP,
|
|
|
1160 abbrev_name, sizeof (abbrev_name));
|
|
|
1161 if (got_abbrev)
|
|
|
1162 return build_string (abbrev_name);
|
|
|
1163 }
|
|
|
1164 else
|
|
|
1165 {
|
|
|
1166 got_full = GetLocaleInfo (XINT (lcid),
|
|
|
1167 LOCALE_SLANGUAGE | LOCALE_USE_CP_ACP,
|
|
|
1168 full_name, sizeof (full_name));
|
|
|
1169 if (got_full)
|
|
|
1170 return build_string (full_name);
|
|
|
1171 }
|
|
|
1172
|
|
|
1173 return Qnil;
|
|
|
1174 }
|
|
|
1175
|
|
|
1176
|
|
|
1177 DEFUN ("win32-get-current-locale-id", Fwin32_get_current_locale_id, 0, 0, "", /*
|
|
|
1178 "Return Windows locale id for current locale setting.
|
|
|
1179 This is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1180 human-readable form.
|
|
|
1181 */
|
|
|
1182 ())
|
|
|
1183 {
|
|
|
1184 return make_int (GetThreadLocale ());
|
|
|
1185 }
|
|
|
1186
|
|
|
1187
|
|
|
1188 DEFUN ("win32-get-default-locale-id", Fwin32_get_default_locale_id, 0, 1, "", /*
|
|
|
1189 "Return Windows locale id for default locale setting.
|
|
|
1190 By default, the system default locale setting is returned; if the optional
|
|
|
1191 parameter USERP is non-nil, the user default locale setting is returned.
|
|
|
1192 This is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1193 human-readable form.
|
|
|
1194 */
|
|
|
1195 (userp))
|
|
|
1196 {
|
|
|
1197 if (NILP (userp))
|
|
|
1198 return make_int (GetSystemDefaultLCID ());
|
|
|
1199 return make_int (GetUserDefaultLCID ());
|
|
|
1200 }
|
|
|
1201
|
|
|
1202 DWORD int_from_hex (char * s)
|
|
|
1203 {
|
|
|
1204 DWORD val = 0;
|
|
|
1205 static char hex[] = "0123456789abcdefABCDEF";
|
|
|
1206 char * p;
|
|
|
1207
|
|
|
1208 while (*s && (p = strchr(hex, *s)) != NULL)
|
|
|
1209 {
|
|
|
1210 unsigned digit = p - hex;
|
|
|
1211 if (digit > 15)
|
|
|
1212 digit -= 6;
|
|
|
1213 val = val * 16 + digit;
|
|
|
1214 s++;
|
|
|
1215 }
|
|
|
1216 return val;
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 /* We need to build a global list, since the EnumSystemLocale callback
|
|
|
1220 function isn't given a context pointer. */
|
|
|
1221 Lisp_Object Vwin32_valid_locale_ids;
|
|
|
1222
|
|
|
1223 BOOL CALLBACK enum_locale_fn (LPTSTR localeNum)
|
|
|
1224 {
|
|
|
1225 DWORD id = int_from_hex (localeNum);
|
|
|
1226 Vwin32_valid_locale_ids = Fcons (make_int (id), Vwin32_valid_locale_ids);
|
|
|
1227 return TRUE;
|
|
|
1228 }
|
|
|
1229
|
|
|
1230 DEFUN ("win32-get-valid-locale-ids", Fwin32_get_valid_locale_ids, 0, 0, "", /*
|
|
|
1231 Return list of all valid Windows locale ids.
|
|
|
1232 Each id is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1233 human-readable form.
|
|
|
1234 */
|
|
|
1235 ())
|
|
|
1236 {
|
|
|
1237 Vwin32_valid_locale_ids = Qnil;
|
|
|
1238
|
|
|
1239 EnumSystemLocales (enum_locale_fn, LCID_SUPPORTED);
|
|
|
1240
|
|
|
1241 Vwin32_valid_locale_ids = Fnreverse (Vwin32_valid_locale_ids);
|
|
|
1242 return Vwin32_valid_locale_ids;
|
|
|
1243 }
|
|
|
1244
|
|
|
1245
|
|
|
1246 DEFUN ("win32-set-current-locale", Fwin32_set_current_locale, 1, 1, "", /*
|
|
|
1247 Make Windows locale LCID be the current locale setting for Emacs.
|
|
|
1248 If successful, the new locale id is returned, otherwise nil.
|
|
|
1249 */
|
|
|
1250 (lcid))
|
|
|
1251 {
|
|
|
1252 CHECK_INT (lcid);
|
|
|
1253
|
|
|
1254 if (!IsValidLocale (XINT (lcid), LCID_SUPPORTED))
|
|
|
1255 return Qnil;
|
|
|
1256
|
|
442
|
1257 /* #### not supported under win98, but will go away */
|
|
428
|
1258 if (!SetThreadLocale (XINT (lcid)))
|
|
|
1259 return Qnil;
|
|
|
1260
|
|
|
1261 /* Sync with FSF Emacs 19.34.6 note: dwWinThreadId declared in
|
|
|
1262 w32term.h and defined in w32fns.c, both of which are not in current
|
|
440
|
1263 XEmacs. #### Check what we lose by ifdef'ing out these. --marcpa */
|
|
428
|
1264 #if 0
|
|
|
1265 /* Need to set input thread locale if present. */
|
|
|
1266 if (dwWinThreadId)
|
|
|
1267 /* Reply is not needed. */
|
|
|
1268 PostThreadMessage (dwWinThreadId, WM_EMACS_SETLOCALE, XINT (lcid), 0);
|
|
|
1269 #endif
|
|
|
1270
|
|
|
1271 return make_int (GetThreadLocale ());
|
|
|
1272 }
|
|
|
1273
|
|
|
1274
|
|
|
1275 void
|
|
442
|
1276 syms_of_ntproc (void)
|
|
428
|
1277 {
|
|
|
1278 DEFSUBR (Fwin32_short_file_name);
|
|
|
1279 DEFSUBR (Fwin32_long_file_name);
|
|
|
1280 DEFSUBR (Fwin32_set_process_priority);
|
|
|
1281 DEFSUBR (Fwin32_get_locale_info);
|
|
|
1282 DEFSUBR (Fwin32_get_current_locale_id);
|
|
|
1283 DEFSUBR (Fwin32_get_default_locale_id);
|
|
|
1284 DEFSUBR (Fwin32_get_valid_locale_ids);
|
|
|
1285 DEFSUBR (Fwin32_set_current_locale);
|
|
|
1286 }
|
|
|
1287
|
|
|
1288
|
|
|
1289 void
|
|
|
1290 vars_of_ntproc (void)
|
|
|
1291 {
|
|
|
1292 defsymbol (&Qhigh, "high");
|
|
|
1293 defsymbol (&Qlow, "low");
|
|
|
1294
|
|
|
1295 DEFVAR_LISP ("win32-quote-process-args", &Vwin32_quote_process_args /*
|
|
|
1296 Non-nil enables quoting of process arguments to ensure correct parsing.
|
|
|
1297 Because Windows does not directly pass argv arrays to child processes,
|
|
|
1298 programs have to reconstruct the argv array by parsing the command
|
|
|
1299 line string. For an argument to contain a space, it must be enclosed
|
|
|
1300 in double quotes or it will be parsed as multiple arguments.
|
|
|
1301
|
|
|
1302 If the value is a character, that character will be used to escape any
|
|
|
1303 quote characters that appear, otherwise a suitable escape character
|
|
|
1304 will be chosen based on the type of the program.
|
|
|
1305 */ );
|
|
|
1306 Vwin32_quote_process_args = Qt;
|
|
|
1307
|
|
|
1308 DEFVAR_LISP ("win32-start-process-show-window",
|
|
|
1309 &Vwin32_start_process_show_window /*
|
|
|
1310 When nil, processes started via start-process hide their windows.
|
|
|
1311 When non-nil, they show their window in the method of their choice.
|
|
|
1312 */ );
|
|
|
1313 Vwin32_start_process_show_window = Qnil;
|
|
|
1314
|
|
|
1315 DEFVAR_LISP ("win32-start-process-share-console",
|
|
|
1316 &Vwin32_start_process_share_console /*
|
|
|
1317 When nil, processes started via start-process are given a new console.
|
|
|
1318 When non-nil, they share the Emacs console; this has the limitation of
|
|
|
1319 allowing only only DOS subprocess to run at a time (whether started directly
|
|
|
1320 or indirectly by Emacs), and preventing Emacs from cleanly terminating the
|
|
|
1321 subprocess group, but may allow Emacs to interrupt a subprocess that doesn't
|
|
|
1322 otherwise respond to interrupts from Emacs.
|
|
|
1323 */ );
|
|
|
1324 Vwin32_start_process_share_console = Qt;
|
|
|
1325
|
|
|
1326 DEFVAR_LISP ("win32-pipe-read-delay", &Vwin32_pipe_read_delay /*
|
|
|
1327 Forced delay before reading subprocess output.
|
|
|
1328 This is done to improve the buffering of subprocess output, by
|
|
|
1329 avoiding the inefficiency of frequently reading small amounts of data.
|
|
|
1330
|
|
|
1331 If positive, the value is the number of milliseconds to sleep before
|
|
|
1332 reading the subprocess output. If negative, the magnitude is the number
|
|
|
1333 of time slices to wait (effectively boosting the priority of the child
|
|
|
1334 process temporarily). A value of zero disables waiting entirely.
|
|
|
1335 */ );
|
|
|
1336 Vwin32_pipe_read_delay = make_int (50);
|
|
|
1337
|
|
|
1338 #if 0
|
|
|
1339 DEFVAR_LISP ("win32-generate-fake-inodes", &Vwin32_generate_fake_inodes /*
|
|
|
1340 "Non-nil means attempt to fake realistic inode values.
|
|
|
1341 This works by hashing the truename of files, and should detect
|
|
|
1342 aliasing between long and short (8.3 DOS) names, but can have
|
|
|
1343 false positives because of hash collisions. Note that determining
|
|
|
1344 the truename of a file can be slow.
|
|
|
1345 */ );
|
|
|
1346 Vwin32_generate_fake_inodes = Qnil;
|
|
|
1347 #endif
|
|
|
1348 }
|
|
|
1349
|
|
|
1350 /* end of ntproc.c */
|
