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611
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1 /* Old process support under MS Windows, soon to die.
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428
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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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611
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27 /* #### This ENTIRE file is only around because of callproc.c, which
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28 in turn is only used in batch mode.
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29
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30 We only need two things to get rid of both this and callproc.c:
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31
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32 -- my `stderr-proc' ws, which adds support for a separate stderr
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33 in asynch. subprocesses. (it's a feature in `old-call-process-internal'.)
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34 -- a noninteractive event loop that supports processes.
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35 */
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36
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428
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37 #include <config.h>
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38 #undef signal
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39 #undef wait
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40 #undef spawnve
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41 #undef select
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42 #undef kill
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43
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44 #include <windows.h>
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45 #ifdef HAVE_A_OUT_H
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46 #include <a.out.h>
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47 #endif
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48 #include "lisp.h"
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49 #include "sysproc.h"
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50 #include "nt.h"
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51 #include "ntheap.h" /* From 19.34.6 */
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52 #include "systime.h"
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53 #include "syssignal.h"
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54 #include "sysfile.h"
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55 #include "syswait.h"
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56 #include "buffer.h"
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57 #include "process.h"
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442
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58
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59 #include "console-msw.h"
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60
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428
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61 /*#include "w32term.h"*/ /* From 19.34.6: sync in ? --marcpa */
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62
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63 /* #### I'm not going to play with shit. */
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64 #pragma warning (disable:4013 4024 4090)
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65
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66 /* Control whether spawnve quotes arguments as necessary to ensure
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67 correct parsing by child process. Because not all uses of spawnve
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68 are careful about constructing argv arrays, we make this behavior
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69 conditional (off by default). */
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70 Lisp_Object Vwin32_quote_process_args;
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71
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72 /* Control whether create_child causes the process' window to be
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73 hidden. The default is nil. */
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74 Lisp_Object Vwin32_start_process_show_window;
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75
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76 /* Control whether create_child causes the process to inherit Emacs'
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77 console window, or be given a new one of its own. The default is
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78 nil, to allow multiple DOS programs to run on Win95. Having separate
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79 consoles also allows Emacs to cleanly terminate process groups. */
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80 Lisp_Object Vwin32_start_process_share_console;
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81
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82 /* Time to sleep before reading from a subprocess output pipe - this
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83 avoids the inefficiency of frequently reading small amounts of data.
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84 This is primarily necessary for handling DOS processes on Windows 95,
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85 but is useful for Win32 processes on both Win95 and NT as well. */
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86 Lisp_Object Vwin32_pipe_read_delay;
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87
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442
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88 /* Control whether xemacs_stat() attempts to generate fake but hopefully
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428
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89 "accurate" inode values, by hashing the absolute truenames of files.
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90 This should detect aliasing between long and short names, but still
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91 allows the possibility of hash collisions. */
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92 Lisp_Object Vwin32_generate_fake_inodes;
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93
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94 Lisp_Object Qhigh, Qlow;
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95
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96 extern Lisp_Object Vlisp_EXEC_SUFFIXES;
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97
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98 #ifndef DEBUG_XEMACS
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99 __inline
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100 #endif
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101 void _DebPrint (const char *fmt, ...)
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102 {
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103 #ifdef DEBUG_XEMACS
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104 char buf[1024];
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105 va_list args;
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106
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107 va_start (args, fmt);
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108 vsprintf (buf, fmt, args);
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109 va_end (args);
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110 OutputDebugString (buf);
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111 #endif
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112 }
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113
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442
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114 /* sys_signal moved to nt.c. It's now called mswindows_signal... */
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428
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115
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116 /* Defined in <process.h> which conflicts with the local copy */
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117 #define _P_NOWAIT 1
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118
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119 /* Child process management list. */
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120 int child_proc_count = 0;
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121 child_process child_procs[ MAX_CHILDREN ];
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122 child_process *dead_child = NULL;
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123
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124 DWORD WINAPI reader_thread (void *arg);
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125
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126 /* Find an unused process slot. */
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127 child_process *
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128 new_child (void)
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129 {
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130 child_process *cp;
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131 DWORD id;
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132
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133 for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
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134 if (!CHILD_ACTIVE (cp))
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135 goto Initialize;
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136 if (child_proc_count == MAX_CHILDREN)
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137 return NULL;
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138 cp = &child_procs[child_proc_count++];
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139
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140 Initialize:
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141 xzero (*cp);
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142 cp->fd = -1;
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143 cp->pid = -1;
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144 if (cp->procinfo.hProcess)
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145 CloseHandle(cp->procinfo.hProcess);
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146 cp->procinfo.hProcess = NULL;
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147 cp->status = STATUS_READ_ERROR;
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148
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149 /* use manual reset event so that select() will function properly */
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150 cp->char_avail = CreateEvent (NULL, TRUE, FALSE, NULL);
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151 if (cp->char_avail)
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152 {
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153 cp->char_consumed = CreateEvent (NULL, FALSE, FALSE, NULL);
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154 if (cp->char_consumed)
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155 {
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156 cp->thrd = CreateThread (NULL, 1024, reader_thread, cp, 0, &id);
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157 if (cp->thrd)
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158 return cp;
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159 }
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160 }
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161 delete_child (cp);
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162 return NULL;
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163 }
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164
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165 void
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166 delete_child (child_process *cp)
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167 {
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168 int i;
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169
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170 /* Should not be deleting a child that is still needed. */
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171 for (i = 0; i < MAXDESC; i++)
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172 if (fd_info[i].cp == cp)
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173 abort ();
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174
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175 if (!CHILD_ACTIVE (cp))
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176 return;
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177
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178 /* reap thread if necessary */
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179 if (cp->thrd)
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180 {
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181 DWORD rc;
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182
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183 if (GetExitCodeThread (cp->thrd, &rc) && rc == STILL_ACTIVE)
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184 {
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185 /* let the thread exit cleanly if possible */
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186 cp->status = STATUS_READ_ERROR;
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187 SetEvent (cp->char_consumed);
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188 if (WaitForSingleObject (cp->thrd, 1000) != WAIT_OBJECT_0)
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189 {
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190 DebPrint (("delete_child.WaitForSingleObject (thread) failed "
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191 "with %lu for fd %ld\n", GetLastError (), cp->fd));
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192 TerminateThread (cp->thrd, 0);
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193 }
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194 }
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195 CloseHandle (cp->thrd);
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196 cp->thrd = NULL;
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197 }
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198 if (cp->char_avail)
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199 {
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200 CloseHandle (cp->char_avail);
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201 cp->char_avail = NULL;
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202 }
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203 if (cp->char_consumed)
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204 {
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205 CloseHandle (cp->char_consumed);
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206 cp->char_consumed = NULL;
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207 }
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208
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209 /* update child_proc_count (highest numbered slot in use plus one) */
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210 if (cp == child_procs + child_proc_count - 1)
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211 {
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212 for (i = child_proc_count-1; i >= 0; i--)
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213 if (CHILD_ACTIVE (&child_procs[i]))
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214 {
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215 child_proc_count = i + 1;
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216 break;
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217 }
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218 }
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219 if (i < 0)
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220 child_proc_count = 0;
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221 }
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222
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223 /* Find a child by pid. */
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224 static child_process *
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225 find_child_pid (DWORD pid)
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226 {
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227 child_process *cp;
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228
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229 for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
|
|
647
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230 if (CHILD_ACTIVE (cp) && pid == (DWORD) cp->pid)
|
|
428
|
231 return cp;
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232 return NULL;
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233 }
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234
|
|
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235 /* Function to do blocking read of one byte, needed to implement
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236 select. It is only allowed on sockets and pipes. */
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237 static int
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238 _sys_read_ahead (int fd)
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239 {
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240 child_process * cp;
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241 int rc = 0;
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242
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243 if (fd < 0 || fd >= MAXDESC)
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244 return STATUS_READ_ERROR;
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245
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246 cp = fd_info[fd].cp;
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247
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248 if (cp == NULL || cp->fd != fd || cp->status != STATUS_READ_READY)
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249 return STATUS_READ_ERROR;
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250
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251 if ((fd_info[fd].flags & (FILE_PIPE | FILE_SOCKET)) == 0
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252 || (fd_info[fd].flags & FILE_READ) == 0)
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253 {
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254 /* fd is not a pipe or socket */
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255 abort ();
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256 }
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257
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258 cp->status = STATUS_READ_IN_PROGRESS;
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259
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260 if (fd_info[fd].flags & FILE_PIPE)
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261 {
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262 rc = _read (fd, &cp->chr, sizeof (char));
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263
|
|
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264 /* Give subprocess time to buffer some more output for us before
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265 reporting that input is available; we need this because Win95
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266 connects DOS programs to pipes by making the pipe appear to be
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267 the normal console stdout - as a result most DOS programs will
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268 write to stdout without buffering, ie. one character at a
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269 time. Even some Win32 programs do this - "dir" in a command
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270 shell on NT is very slow if we don't do this. */
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271 if (rc > 0)
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272 {
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273 int wait = XINT (Vwin32_pipe_read_delay);
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274
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275 if (wait > 0)
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276 Sleep (wait);
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277 else if (wait < 0)
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278 while (++wait <= 0)
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279 /* Yield remainder of our time slice, effectively giving a
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280 temporary priority boost to the child process. */
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281 Sleep (0);
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282 }
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283 }
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284
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285 if (rc == sizeof (char))
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286 cp->status = STATUS_READ_SUCCEEDED;
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287 else
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288 cp->status = STATUS_READ_FAILED;
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289
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290 return cp->status;
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|
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291 }
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292
|
|
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293 /* Thread proc for child process and socket reader threads. Each thread
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294 is normally blocked until woken by select() to check for input by
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295 reading one char. When the read completes, char_avail is signalled
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296 to wake up the select emulator and the thread blocks itself again. */
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297 DWORD WINAPI
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298 reader_thread (void *arg)
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299 {
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300 child_process *cp;
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301
|
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302 /* Our identity */
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303 cp = (child_process *)arg;
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304
|
|
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305 /* <matts@tibco.com> - I think the test below is wrong - we don't
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306 want to wait for someone to signal char_consumed, as we haven't
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307 read anything for them to consume yet! */
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308
|
|
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309 /*
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310 if (cp == NULL ||
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311 WaitForSingleObject (cp->char_consumed, INFINITE) != WAIT_OBJECT_0)
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312 */
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313
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314 if (cp == NULL)
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315 {
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316 return 1;
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317 }
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318
|
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319 for (;;)
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320 {
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321 int rc;
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322
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323 rc = _sys_read_ahead (cp->fd);
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324
|
|
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325 /* The name char_avail is a misnomer - it really just means the
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326 read-ahead has completed, whether successfully or not. */
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327 if (!SetEvent (cp->char_avail))
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328 {
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329 DebPrint (("reader_thread.SetEvent failed with %lu for fd %ld\n",
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330 GetLastError (), cp->fd));
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|
331 return 1;
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|
|
332 }
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333
|
|
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334 if (rc == STATUS_READ_ERROR)
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|
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335 {
|
|
|
336 /* We are finished, so clean up handles and set to NULL so
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337 that CHILD_ACTIVE will see what is going on */
|
|
|
338 if (cp->char_avail) {
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339 CloseHandle (cp->char_avail);
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|
340 cp->char_avail = NULL;
|
|
|
341 }
|
|
|
342 if (cp->thrd) {
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|
343 CloseHandle (cp->thrd);
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|
|
344 cp->thrd = NULL;
|
|
|
345 }
|
|
|
346 if (cp->char_consumed) {
|
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|
347 CloseHandle(cp->char_consumed);
|
|
|
348 cp->char_consumed = NULL;
|
|
|
349 }
|
|
|
350 if (cp->procinfo.hProcess)
|
|
|
351 {
|
|
|
352 CloseHandle (cp->procinfo.hProcess);
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|
|
353 cp->procinfo.hProcess=NULL;
|
|
|
354 }
|
|
|
355 return 1;
|
|
|
356 }
|
|
|
357
|
|
|
358 /* If the read died, the child has died so let the thread die */
|
|
|
359 if (rc == STATUS_READ_FAILED)
|
|
|
360 break;
|
|
|
361
|
|
|
362 /* Wait until our input is acknowledged before reading again */
|
|
|
363 if (WaitForSingleObject (cp->char_consumed, INFINITE) != WAIT_OBJECT_0)
|
|
|
364 {
|
|
|
365 DebPrint (("reader_thread.WaitForSingleObject failed with "
|
|
|
366 "%lu for fd %ld\n", GetLastError (), cp->fd));
|
|
|
367 break;
|
|
|
368 }
|
|
|
369 }
|
|
|
370 /* We are finished, so clean up handles and set to NULL so that
|
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|
371 CHILD_ACTIVE will see what is going on */
|
|
|
372 if (cp->char_avail) {
|
|
|
373 CloseHandle (cp->char_avail);
|
|
|
374 cp->char_avail = NULL;
|
|
|
375 }
|
|
|
376 if (cp->thrd) {
|
|
|
377 CloseHandle (cp->thrd);
|
|
|
378 cp->thrd = NULL;
|
|
|
379 }
|
|
|
380 if (cp->char_consumed) {
|
|
|
381 CloseHandle(cp->char_consumed);
|
|
|
382 cp->char_consumed = NULL;
|
|
|
383 }
|
|
|
384 if (cp->procinfo.hProcess)
|
|
|
385 {
|
|
|
386 CloseHandle (cp->procinfo.hProcess);
|
|
|
387 cp->procinfo.hProcess=NULL;
|
|
|
388 }
|
|
|
389
|
|
|
390 return 0;
|
|
|
391 }
|
|
|
392
|
|
|
393 /* To avoid Emacs changing directory, we just record here the directory
|
|
|
394 the new process should start in. This is set just before calling
|
|
|
395 sys_spawnve, and is not generally valid at any other time. */
|
|
|
396 static const char * process_dir;
|
|
|
397
|
|
|
398 static BOOL
|
|
442
|
399 create_child (const char *exe, char *cmdline, char *env,
|
|
428
|
400 int * pPid, child_process *cp)
|
|
|
401 {
|
|
|
402 STARTUPINFO start;
|
|
|
403 SECURITY_ATTRIBUTES sec_attrs;
|
|
|
404 SECURITY_DESCRIPTOR sec_desc;
|
|
|
405 char dir[ MAXPATHLEN ];
|
|
|
406
|
|
|
407 if (cp == NULL) abort ();
|
|
|
408
|
|
|
409 xzero (start);
|
|
|
410 start.cb = sizeof (start);
|
|
|
411
|
|
|
412 if (NILP (Vwin32_start_process_show_window))
|
|
|
413 start.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
|
|
|
414 else
|
|
|
415 start.dwFlags = STARTF_USESTDHANDLES;
|
|
|
416 start.wShowWindow = SW_HIDE;
|
|
|
417
|
|
|
418 start.hStdInput = GetStdHandle (STD_INPUT_HANDLE);
|
|
|
419 start.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE);
|
|
|
420 start.hStdError = GetStdHandle (STD_ERROR_HANDLE);
|
|
|
421
|
|
|
422 /* Explicitly specify no security */
|
|
442
|
423 /* #### not supported under win98, but will go away */
|
|
428
|
424 if (!InitializeSecurityDescriptor (&sec_desc, SECURITY_DESCRIPTOR_REVISION))
|
|
|
425 goto EH_Fail;
|
|
442
|
426 /* #### not supported under win98, but will go away */
|
|
428
|
427 if (!SetSecurityDescriptorDacl (&sec_desc, TRUE, NULL, FALSE))
|
|
|
428 goto EH_Fail;
|
|
|
429 sec_attrs.nLength = sizeof (sec_attrs);
|
|
|
430 sec_attrs.lpSecurityDescriptor = &sec_desc;
|
|
|
431 sec_attrs.bInheritHandle = FALSE;
|
|
|
432
|
|
|
433 strcpy (dir, process_dir);
|
|
|
434 unixtodos_filename (dir);
|
|
|
435
|
|
|
436 if (!CreateProcess (exe, cmdline, &sec_attrs, NULL, TRUE,
|
|
|
437 (!NILP (Vwin32_start_process_share_console)
|
|
|
438 ? CREATE_NEW_PROCESS_GROUP
|
|
|
439 : CREATE_NEW_CONSOLE),
|
|
|
440 env, dir,
|
|
|
441 &start, &cp->procinfo))
|
|
|
442 goto EH_Fail;
|
|
|
443
|
|
|
444 cp->pid = (int) cp->procinfo.dwProcessId;
|
|
|
445
|
|
|
446 CloseHandle (cp->procinfo.hThread);
|
|
|
447 CloseHandle (cp->procinfo.hProcess);
|
|
|
448 cp->procinfo.hThread=NULL;
|
|
|
449 cp->procinfo.hProcess=NULL;
|
|
|
450
|
|
432
|
451 /* pid must fit in a Lisp_Int */
|
|
428
|
452
|
|
|
453
|
|
|
454 *pPid = cp->pid;
|
|
|
455
|
|
|
456 return TRUE;
|
|
|
457
|
|
|
458 EH_Fail:
|
|
|
459 DebPrint (("create_child.CreateProcess failed: %ld\n", GetLastError()););
|
|
|
460 return FALSE;
|
|
|
461 }
|
|
|
462
|
|
|
463 void
|
|
|
464 merge_and_sort_env (char **envp1, char **envp2, char **new_envp)
|
|
|
465 {
|
|
|
466 char **optr, **nptr;
|
|
|
467 int num;
|
|
|
468
|
|
|
469 nptr = new_envp;
|
|
|
470 optr = envp1;
|
|
|
471 while (*optr)
|
|
|
472 *nptr++ = *optr++;
|
|
|
473 num = optr - envp1;
|
|
|
474
|
|
|
475 optr = envp2;
|
|
|
476 while (*optr)
|
|
|
477 *nptr++ = *optr++;
|
|
|
478 num += optr - envp2;
|
|
|
479
|
|
442
|
480 qsort (new_envp, num, sizeof (char*), compare_env);
|
|
428
|
481
|
|
|
482 *nptr = NULL;
|
|
|
483 }
|
|
|
484
|
|
|
485 /* When a new child process is created we need to register it in our list,
|
|
|
486 so intercept spawn requests. */
|
|
|
487 int
|
|
442
|
488 sys_spawnve (int mode, const char *cmdname,
|
|
|
489 const char * const *argv, const char *const *envp)
|
|
428
|
490 {
|
|
|
491 Lisp_Object program, full;
|
|
|
492 char *cmdline, *env, *parg, **targ;
|
|
|
493 int arglen, numenv;
|
|
|
494 int pid;
|
|
|
495 child_process *cp;
|
|
|
496 int is_dos_app, is_cygnus_app;
|
|
|
497 int do_quoting = 0;
|
|
|
498 char escape_char = 0;
|
|
|
499 /* We pass our process ID to our children by setting up an environment
|
|
|
500 variable in their environment. */
|
|
|
501 char ppid_env_var_buffer[64];
|
|
|
502 char *extra_env[] = {ppid_env_var_buffer, NULL};
|
|
|
503 struct gcpro gcpro1;
|
|
|
504
|
|
|
505 /* We don't care about the other modes */
|
|
|
506 if (mode != _P_NOWAIT)
|
|
|
507 {
|
|
|
508 errno = EINVAL;
|
|
|
509 return -1;
|
|
|
510 }
|
|
|
511
|
|
|
512 /* Handle executable names without an executable suffix. */
|
|
442
|
513 program = build_string (cmdname);
|
|
428
|
514 GCPRO1 (program);
|
|
|
515 if (NILP (Ffile_executable_p (program)))
|
|
|
516 {
|
|
|
517 full = Qnil;
|
|
|
518 locate_file (Vexec_path, program, Vlisp_EXEC_SUFFIXES, &full, 1);
|
|
|
519 if (NILP (full))
|
|
|
520 {
|
|
|
521 UNGCPRO;
|
|
|
522 errno = EINVAL;
|
|
|
523 return -1;
|
|
|
524 }
|
|
440
|
525 TO_EXTERNAL_FORMAT (LISP_STRING, full,
|
|
|
526 C_STRING_ALLOCA, cmdname,
|
|
|
527 Qfile_name);
|
|
428
|
528 }
|
|
|
529 else
|
|
|
530 {
|
|
442
|
531 cmdname = (char*)alloca (strlen (argv[0]) + 1);
|
|
428
|
532 strcpy ((char*)cmdname, argv[0]);
|
|
|
533 }
|
|
|
534 UNGCPRO;
|
|
|
535
|
|
|
536 /* make sure argv[0] and cmdname are both in DOS format */
|
|
|
537 unixtodos_filename ((char*)cmdname);
|
|
|
538 /* #### KLUDGE */
|
|
442
|
539 ((const char**)argv)[0] = cmdname;
|
|
428
|
540
|
|
|
541 /* Determine whether program is a 16-bit DOS executable, or a Win32
|
|
|
542 executable that is implicitly linked to the Cygnus dll (implying it
|
|
|
543 was compiled with the Cygnus GNU toolchain and hence relies on
|
|
|
544 cygwin.dll to parse the command line - we use this to decide how to
|
|
|
545 escape quote chars in command line args that must be quoted). */
|
|
442
|
546 mswindows_executable_type (cmdname, &is_dos_app, &is_cygnus_app);
|
|
428
|
547
|
|
|
548 /* On Windows 95, if cmdname is a DOS app, we invoke a helper
|
|
|
549 application to start it by specifying the helper app as cmdname,
|
|
|
550 while leaving the real app name as argv[0]. */
|
|
|
551 if (is_dos_app)
|
|
|
552 {
|
|
442
|
553 cmdname = (char*) alloca (MAXPATHLEN);
|
|
428
|
554 if (egetenv ("CMDPROXY"))
|
|
|
555 strcpy ((char*)cmdname, egetenv ("CMDPROXY"));
|
|
|
556 else
|
|
|
557 {
|
|
|
558 strcpy ((char*)cmdname, XSTRING_DATA (Vinvocation_directory));
|
|
|
559 strcat ((char*)cmdname, "cmdproxy.exe");
|
|
|
560 }
|
|
|
561 unixtodos_filename ((char*)cmdname);
|
|
|
562 }
|
|
|
563
|
|
|
564 /* we have to do some conjuring here to put argv and envp into the
|
|
|
565 form CreateProcess wants... argv needs to be a space separated/null
|
|
|
566 terminated list of parameters, and envp is a null
|
|
|
567 separated/double-null terminated list of parameters.
|
|
|
568
|
|
|
569 Additionally, zero-length args and args containing whitespace or
|
|
|
570 quote chars need to be wrapped in double quotes - for this to work,
|
|
|
571 embedded quotes need to be escaped as well. The aim is to ensure
|
|
|
572 the child process reconstructs the argv array we start with
|
|
|
573 exactly, so we treat quotes at the beginning and end of arguments
|
|
|
574 as embedded quotes.
|
|
|
575
|
|
|
576 The Win32 GNU-based library from Cygnus doubles quotes to escape
|
|
|
577 them, while MSVC uses backslash for escaping. (Actually the MSVC
|
|
|
578 startup code does attempt to recognize doubled quotes and accept
|
|
|
579 them, but gets it wrong and ends up requiring three quotes to get a
|
|
|
580 single embedded quote!) So by default we decide whether to use
|
|
|
581 quote or backslash as the escape character based on whether the
|
|
|
582 binary is apparently a Cygnus compiled app.
|
|
|
583
|
|
|
584 Note that using backslash to escape embedded quotes requires
|
|
|
585 additional special handling if an embedded quote is already
|
|
|
586 preceded by backslash, or if an arg requiring quoting ends with
|
|
|
587 backslash. In such cases, the run of escape characters needs to be
|
|
|
588 doubled. For consistency, we apply this special handling as long
|
|
|
589 as the escape character is not quote.
|
|
|
590
|
|
|
591 Since we have no idea how large argv and envp are likely to be we
|
|
|
592 figure out list lengths on the fly and allocate them. */
|
|
|
593
|
|
|
594 if (!NILP (Vwin32_quote_process_args))
|
|
|
595 {
|
|
|
596 do_quoting = 1;
|
|
|
597 /* Override escape char by binding win32-quote-process-args to
|
|
|
598 desired character, or use t for auto-selection. */
|
|
|
599 if (INTP (Vwin32_quote_process_args))
|
|
442
|
600 escape_char = (char) XINT (Vwin32_quote_process_args);
|
|
428
|
601 else
|
|
|
602 escape_char = is_cygnus_app ? '"' : '\\';
|
|
|
603 }
|
|
|
604
|
|
|
605 /* do argv... */
|
|
|
606 arglen = 0;
|
|
|
607 targ = (char**)argv;
|
|
|
608 while (*targ)
|
|
|
609 {
|
|
|
610 char * p = *targ;
|
|
|
611 int need_quotes = 0;
|
|
|
612 int escape_char_run = 0;
|
|
|
613
|
|
|
614 if (*p == 0)
|
|
|
615 need_quotes = 1;
|
|
|
616 for ( ; *p; p++)
|
|
|
617 {
|
|
|
618 if (*p == '"')
|
|
|
619 {
|
|
|
620 /* allow for embedded quotes to be escaped */
|
|
|
621 arglen++;
|
|
|
622 need_quotes = 1;
|
|
|
623 /* handle the case where the embedded quote is already escaped */
|
|
|
624 if (escape_char_run > 0)
|
|
|
625 {
|
|
|
626 /* To preserve the arg exactly, we need to double the
|
|
|
627 preceding escape characters (plus adding one to
|
|
|
628 escape the quote character itself). */
|
|
|
629 arglen += escape_char_run;
|
|
|
630 }
|
|
|
631 }
|
|
|
632 else if (*p == ' ' || *p == '\t')
|
|
|
633 {
|
|
|
634 need_quotes = 1;
|
|
|
635 }
|
|
|
636
|
|
|
637 if (*p == escape_char && escape_char != '"')
|
|
|
638 escape_char_run++;
|
|
|
639 else
|
|
|
640 escape_char_run = 0;
|
|
|
641 }
|
|
|
642 if (need_quotes)
|
|
|
643 {
|
|
|
644 arglen += 2;
|
|
|
645 /* handle the case where the arg ends with an escape char - we
|
|
|
646 must not let the enclosing quote be escaped. */
|
|
|
647 if (escape_char_run > 0)
|
|
|
648 arglen += escape_char_run;
|
|
|
649 }
|
|
|
650 arglen += strlen (*targ++) + 1;
|
|
|
651 }
|
|
442
|
652 cmdline = (char*) alloca (arglen);
|
|
428
|
653 targ = (char**)argv;
|
|
|
654 parg = cmdline;
|
|
|
655 while (*targ)
|
|
|
656 {
|
|
|
657 char * p = *targ;
|
|
|
658 int need_quotes = 0;
|
|
|
659
|
|
|
660 if (*p == 0)
|
|
|
661 need_quotes = 1;
|
|
|
662
|
|
|
663 if (do_quoting)
|
|
|
664 {
|
|
|
665 for ( ; *p; p++)
|
|
|
666 if (*p == ' ' || *p == '\t' || *p == '"')
|
|
|
667 need_quotes = 1;
|
|
|
668 }
|
|
|
669 if (need_quotes)
|
|
|
670 {
|
|
|
671 int escape_char_run = 0;
|
|
|
672 char * first;
|
|
|
673 char * last;
|
|
|
674
|
|
|
675 p = *targ;
|
|
|
676 first = p;
|
|
|
677 last = p + strlen (p) - 1;
|
|
|
678 *parg++ = '"';
|
|
|
679 #if 0
|
|
|
680 /* This version does not escape quotes if they occur at the
|
|
|
681 beginning or end of the arg - this could lead to incorrect
|
|
|
682 behavior when the arg itself represents a command line
|
|
|
683 containing quoted args. I believe this was originally done
|
|
|
684 as a hack to make some things work, before
|
|
|
685 `win32-quote-process-args' was added. */
|
|
|
686 while (*p)
|
|
|
687 {
|
|
|
688 if (*p == '"' && p > first && p < last)
|
|
|
689 *parg++ = escape_char; /* escape embedded quotes */
|
|
|
690 *parg++ = *p++;
|
|
|
691 }
|
|
|
692 #else
|
|
|
693 for ( ; *p; p++)
|
|
|
694 {
|
|
|
695 if (*p == '"')
|
|
|
696 {
|
|
|
697 /* double preceding escape chars if any */
|
|
|
698 while (escape_char_run > 0)
|
|
|
699 {
|
|
|
700 *parg++ = escape_char;
|
|
|
701 escape_char_run--;
|
|
|
702 }
|
|
|
703 /* escape all quote chars, even at beginning or end */
|
|
|
704 *parg++ = escape_char;
|
|
|
705 }
|
|
|
706 *parg++ = *p;
|
|
|
707
|
|
|
708 if (*p == escape_char && escape_char != '"')
|
|
|
709 escape_char_run++;
|
|
|
710 else
|
|
|
711 escape_char_run = 0;
|
|
|
712 }
|
|
|
713 /* double escape chars before enclosing quote */
|
|
|
714 while (escape_char_run > 0)
|
|
|
715 {
|
|
|
716 *parg++ = escape_char;
|
|
|
717 escape_char_run--;
|
|
|
718 }
|
|
|
719 #endif
|
|
|
720 *parg++ = '"';
|
|
|
721 }
|
|
|
722 else
|
|
|
723 {
|
|
|
724 strcpy (parg, *targ);
|
|
|
725 parg += strlen (*targ);
|
|
|
726 }
|
|
|
727 *parg++ = ' ';
|
|
|
728 targ++;
|
|
|
729 }
|
|
|
730 *--parg = '\0';
|
|
|
731
|
|
|
732 /* and envp... */
|
|
|
733 arglen = 1;
|
|
442
|
734 targ = (char**) envp;
|
|
428
|
735 numenv = 1; /* for end null */
|
|
|
736 while (*targ)
|
|
|
737 {
|
|
|
738 arglen += strlen (*targ++) + 1;
|
|
|
739 numenv++;
|
|
|
740 }
|
|
|
741 /* extra env vars... */
|
|
|
742 sprintf (ppid_env_var_buffer, "__PARENT_PROCESS_ID=%d",
|
|
|
743 GetCurrentProcessId ());
|
|
|
744 arglen += strlen (ppid_env_var_buffer) + 1;
|
|
|
745 numenv++;
|
|
|
746
|
|
|
747 /* merge env passed in and extra env into one, and sort it. */
|
|
442
|
748 targ = (char **) alloca (numenv * sizeof (char*));
|
|
|
749 merge_and_sort_env ((char**) envp, extra_env, targ);
|
|
428
|
750
|
|
|
751 /* concatenate env entries. */
|
|
442
|
752 env = (char*) alloca (arglen);
|
|
428
|
753 parg = env;
|
|
|
754 while (*targ)
|
|
|
755 {
|
|
|
756 strcpy (parg, *targ);
|
|
|
757 parg += strlen (*targ++);
|
|
|
758 *parg++ = '\0';
|
|
|
759 }
|
|
|
760 *parg++ = '\0';
|
|
|
761 *parg = '\0';
|
|
|
762
|
|
|
763 cp = new_child ();
|
|
|
764 if (cp == NULL)
|
|
|
765 {
|
|
|
766 errno = EAGAIN;
|
|
|
767 return -1;
|
|
|
768 }
|
|
|
769
|
|
|
770 /* Now create the process. */
|
|
|
771 if (!create_child (cmdname, cmdline, env, &pid, cp))
|
|
|
772 {
|
|
|
773 delete_child (cp);
|
|
|
774 errno = ENOEXEC;
|
|
|
775 return -1;
|
|
|
776 }
|
|
|
777
|
|
|
778 return pid;
|
|
|
779 }
|
|
|
780
|
|
|
781 /* Substitute for certain kill () operations */
|
|
|
782
|
|
|
783 static BOOL CALLBACK
|
|
|
784 find_child_console (HWND hwnd, child_process * cp)
|
|
|
785 {
|
|
|
786 DWORD thread_id;
|
|
|
787 DWORD process_id;
|
|
|
788
|
|
|
789 thread_id = GetWindowThreadProcessId (hwnd, &process_id);
|
|
|
790 if (process_id == cp->procinfo.dwProcessId)
|
|
|
791 {
|
|
|
792 char window_class[32];
|
|
|
793
|
|
|
794 GetClassName (hwnd, window_class, sizeof (window_class));
|
|
|
795 if (strcmp (window_class,
|
|
442
|
796 mswindows_windows9x_p()
|
|
428
|
797 ? "tty"
|
|
|
798 : "ConsoleWindowClass") == 0)
|
|
|
799 {
|
|
|
800 cp->hwnd = hwnd;
|
|
|
801 return FALSE;
|
|
|
802 }
|
|
|
803 }
|
|
|
804 /* keep looking */
|
|
|
805 return TRUE;
|
|
|
806 }
|
|
|
807
|
|
|
808 int
|
|
|
809 sys_kill (int pid, int sig)
|
|
|
810 {
|
|
|
811 child_process *cp;
|
|
|
812 HANDLE proc_hand;
|
|
|
813 int need_to_free = 0;
|
|
|
814 int rc = 0;
|
|
|
815
|
|
|
816 /* Only handle signals that will result in the process dying */
|
|
|
817 if (sig != SIGINT && sig != SIGKILL && sig != SIGQUIT && sig != SIGHUP)
|
|
|
818 {
|
|
|
819 errno = EINVAL;
|
|
|
820 return -1;
|
|
|
821 }
|
|
|
822
|
|
|
823 cp = find_child_pid (pid);
|
|
|
824 if (cp == NULL)
|
|
|
825 {
|
|
|
826 proc_hand = OpenProcess (PROCESS_TERMINATE, 0, pid);
|
|
|
827 if (proc_hand == NULL)
|
|
|
828 {
|
|
|
829 errno = EPERM;
|
|
|
830 return -1;
|
|
|
831 }
|
|
|
832 need_to_free = 1;
|
|
|
833 }
|
|
|
834 else
|
|
|
835 {
|
|
|
836 proc_hand = cp->procinfo.hProcess;
|
|
|
837 pid = cp->procinfo.dwProcessId;
|
|
|
838
|
|
|
839 /* Try to locate console window for process. */
|
|
|
840 EnumWindows ((WNDENUMPROC)find_child_console, (LPARAM) cp);
|
|
|
841 }
|
|
|
842
|
|
|
843 if (sig == SIGINT)
|
|
|
844 {
|
|
|
845 if (NILP (Vwin32_start_process_share_console) && cp && cp->hwnd)
|
|
|
846 {
|
|
|
847 BYTE control_scan_code = (BYTE) MapVirtualKey (VK_CONTROL, 0);
|
|
|
848 BYTE vk_break_code = VK_CANCEL;
|
|
|
849 BYTE break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
|
|
|
850 HWND foreground_window;
|
|
|
851
|
|
|
852 if (break_scan_code == 0)
|
|
|
853 {
|
|
|
854 /* Fake Ctrl-C if we can't manage Ctrl-Break. */
|
|
|
855 vk_break_code = 'C';
|
|
|
856 break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
|
|
|
857 }
|
|
|
858
|
|
|
859 foreground_window = GetForegroundWindow ();
|
|
|
860 if (foreground_window && SetForegroundWindow (cp->hwnd))
|
|
|
861 {
|
|
|
862 /* Generate keystrokes as if user had typed Ctrl-Break or Ctrl-C. */
|
|
|
863 keybd_event (VK_CONTROL, control_scan_code, 0, 0);
|
|
|
864 keybd_event (vk_break_code, break_scan_code, 0, 0);
|
|
|
865 keybd_event (vk_break_code, break_scan_code, KEYEVENTF_KEYUP, 0);
|
|
|
866 keybd_event (VK_CONTROL, control_scan_code, KEYEVENTF_KEYUP, 0);
|
|
|
867
|
|
|
868 /* Sleep for a bit to give time for Emacs frame to respond
|
|
|
869 to focus change events (if Emacs was active app). */
|
|
|
870 Sleep (10);
|
|
|
871
|
|
|
872 SetForegroundWindow (foreground_window);
|
|
|
873 }
|
|
|
874 }
|
|
|
875 /* Ctrl-Break is NT equivalent of SIGINT. */
|
|
|
876 else if (!GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, pid))
|
|
|
877 {
|
|
|
878 DebPrint (("sys_kill.GenerateConsoleCtrlEvent return %d "
|
|
|
879 "for pid %lu\n", GetLastError (), pid));
|
|
|
880 errno = EINVAL;
|
|
|
881 rc = -1;
|
|
|
882 }
|
|
|
883 }
|
|
|
884 else
|
|
|
885 {
|
|
|
886 if (NILP (Vwin32_start_process_share_console) && cp && cp->hwnd)
|
|
|
887 {
|
|
|
888 #if 1
|
|
442
|
889 if (mswindows_windows9x_p())
|
|
428
|
890 {
|
|
|
891 /*
|
|
|
892 Another possibility is to try terminating the VDM out-right by
|
|
|
893 calling the Shell VxD (id 0x17) V86 interface, function #4
|
|
|
894 "SHELL_Destroy_VM", ie.
|
|
|
895
|
|
|
896 mov edx,4
|
|
|
897 mov ebx,vm_handle
|
|
|
898 call shellapi
|
|
|
899
|
|
|
900 First need to determine the current VM handle, and then arrange for
|
|
|
901 the shellapi call to be made from the system vm (by using
|
|
|
902 Switch_VM_and_callback).
|
|
|
903
|
|
|
904 Could try to invoke DestroyVM through CallVxD.
|
|
|
905
|
|
|
906 */
|
|
|
907 #if 0
|
|
|
908 /* On Win95, posting WM_QUIT causes the 16-bit subsystem
|
|
|
909 to hang when cmdproxy is used in conjunction with
|
|
|
910 command.com for an interactive shell. Posting
|
|
|
911 WM_CLOSE pops up a dialog that, when Yes is selected,
|
|
|
912 does the same thing. TerminateProcess is also less
|
|
|
913 than ideal in that subprocesses tend to stick around
|
|
|
914 until the machine is shutdown, but at least it
|
|
|
915 doesn't freeze the 16-bit subsystem. */
|
|
|
916 PostMessage (cp->hwnd, WM_QUIT, 0xff, 0);
|
|
|
917 #endif
|
|
|
918 if (!TerminateProcess (proc_hand, 0xff))
|
|
|
919 {
|
|
|
920 DebPrint (("sys_kill.TerminateProcess returned %d "
|
|
|
921 "for pid %lu\n", GetLastError (), pid));
|
|
|
922 errno = EINVAL;
|
|
|
923 rc = -1;
|
|
|
924 }
|
|
|
925 }
|
|
|
926 else
|
|
|
927 #endif
|
|
|
928 PostMessage (cp->hwnd, WM_CLOSE, 0, 0);
|
|
|
929 }
|
|
|
930 /* Kill the process. On Win32 this doesn't kill child processes
|
|
|
931 so it doesn't work very well for shells which is why it's not
|
|
|
932 used in every case. */
|
|
|
933 else if (!TerminateProcess (proc_hand, 0xff))
|
|
|
934 {
|
|
|
935 DebPrint (("sys_kill.TerminateProcess returned %d "
|
|
|
936 "for pid %lu\n", GetLastError (), pid));
|
|
|
937 errno = EINVAL;
|
|
|
938 rc = -1;
|
|
|
939 }
|
|
|
940 }
|
|
|
941
|
|
|
942 if (need_to_free)
|
|
|
943 CloseHandle (proc_hand);
|
|
|
944
|
|
|
945 return rc;
|
|
|
946 }
|
|
|
947
|
|
|
948 /* The following two routines are used to manipulate stdin, stdout, and
|
|
|
949 stderr of our child processes.
|
|
|
950
|
|
|
951 Assuming that in, out, and err are *not* inheritable, we make them
|
|
|
952 stdin, stdout, and stderr of the child as follows:
|
|
|
953
|
|
|
954 - Save the parent's current standard handles.
|
|
|
955 - Set the std handles to inheritable duplicates of the ones being passed in.
|
|
|
956 (Note that _get_osfhandle() is an io.h procedure that retrieves the
|
|
|
957 NT file handle for a crt file descriptor.)
|
|
|
958 - Spawn the child, which inherits in, out, and err as stdin,
|
|
|
959 stdout, and stderr. (see Spawnve)
|
|
|
960 - Close the std handles passed to the child.
|
|
|
961 - Reset the parent's standard handles to the saved handles.
|
|
|
962 (see reset_standard_handles)
|
|
|
963 We assume that the caller closes in, out, and err after calling us. */
|
|
|
964
|
|
|
965 void
|
|
|
966 prepare_standard_handles (int in, int out, int err, HANDLE handles[3])
|
|
|
967 {
|
|
|
968 HANDLE parent;
|
|
|
969 HANDLE newstdin, newstdout, newstderr;
|
|
|
970
|
|
|
971 parent = GetCurrentProcess ();
|
|
|
972
|
|
|
973 handles[0] = GetStdHandle (STD_INPUT_HANDLE);
|
|
|
974 handles[1] = GetStdHandle (STD_OUTPUT_HANDLE);
|
|
|
975 handles[2] = GetStdHandle (STD_ERROR_HANDLE);
|
|
|
976
|
|
|
977 /* make inheritable copies of the new handles */
|
|
|
978 if (!DuplicateHandle (parent,
|
|
|
979 (HANDLE) _get_osfhandle (in),
|
|
|
980 parent,
|
|
|
981 &newstdin,
|
|
|
982 0,
|
|
|
983 TRUE,
|
|
|
984 DUPLICATE_SAME_ACCESS))
|
|
563
|
985 mswindows_report_process_error ("Duplicating input handle for child",
|
|
|
986 Qunbound, GetLastError ());
|
|
428
|
987
|
|
|
988 if (!DuplicateHandle (parent,
|
|
|
989 (HANDLE) _get_osfhandle (out),
|
|
|
990 parent,
|
|
|
991 &newstdout,
|
|
|
992 0,
|
|
|
993 TRUE,
|
|
|
994 DUPLICATE_SAME_ACCESS))
|
|
563
|
995 mswindows_report_process_error ("Duplicating output handle for child",
|
|
|
996 Qunbound, GetLastError ());
|
|
428
|
997
|
|
|
998 if (!DuplicateHandle (parent,
|
|
|
999 (HANDLE) _get_osfhandle (err),
|
|
|
1000 parent,
|
|
|
1001 &newstderr,
|
|
|
1002 0,
|
|
|
1003 TRUE,
|
|
|
1004 DUPLICATE_SAME_ACCESS))
|
|
563
|
1005 mswindows_report_process_error ("Duplicating error handle for child",
|
|
|
1006 Qunbound, GetLastError ());
|
|
428
|
1007
|
|
|
1008 /* and store them as our std handles */
|
|
|
1009 if (!SetStdHandle (STD_INPUT_HANDLE, newstdin))
|
|
563
|
1010 mswindows_report_process_error ("Changing stdin handle",
|
|
|
1011 Qunbound, GetLastError ());
|
|
428
|
1012
|
|
|
1013 if (!SetStdHandle (STD_OUTPUT_HANDLE, newstdout))
|
|
563
|
1014 mswindows_report_process_error ("Changing stdout handle",
|
|
|
1015 Qunbound, GetLastError ());
|
|
428
|
1016
|
|
|
1017 if (!SetStdHandle (STD_ERROR_HANDLE, newstderr))
|
|
563
|
1018 mswindows_report_process_error ("Changing stderr handle",
|
|
|
1019 Qunbound, GetLastError ());
|
|
428
|
1020 }
|
|
|
1021
|
|
|
1022 void
|
|
|
1023 reset_standard_handles (int in, int out, int err, HANDLE handles[3])
|
|
|
1024 {
|
|
|
1025 /* close the duplicated handles passed to the child */
|
|
|
1026 CloseHandle (GetStdHandle (STD_INPUT_HANDLE));
|
|
|
1027 CloseHandle (GetStdHandle (STD_OUTPUT_HANDLE));
|
|
|
1028 CloseHandle (GetStdHandle (STD_ERROR_HANDLE));
|
|
|
1029
|
|
|
1030 /* now restore parent's saved std handles */
|
|
|
1031 SetStdHandle (STD_INPUT_HANDLE, handles[0]);
|
|
|
1032 SetStdHandle (STD_OUTPUT_HANDLE, handles[1]);
|
|
|
1033 SetStdHandle (STD_ERROR_HANDLE, handles[2]);
|
|
|
1034 }
|
|
|
1035
|
|
|
1036 void
|
|
|
1037 set_process_dir (const char * dir)
|
|
|
1038 {
|
|
|
1039 process_dir = dir;
|
|
|
1040 }
|
|
|
1041
|
|
|
1042 /* Some miscellaneous functions that are Windows specific, but not GUI
|
|
|
1043 specific (ie. are applicable in terminal or batch mode as well). */
|
|
|
1044
|
|
|
1045 DEFUN ("win32-short-file-name", Fwin32_short_file_name, 1, 1, "", /*
|
|
|
1046 Return the short file name version (8.3) of the full path of FILENAME.
|
|
|
1047 If FILENAME does not exist, return nil.
|
|
|
1048 All path elements in FILENAME are converted to their short names.
|
|
|
1049 */
|
|
|
1050 (filename))
|
|
|
1051 {
|
|
558
|
1052 char shortname[PATH_MAX];
|
|
428
|
1053
|
|
|
1054 CHECK_STRING (filename);
|
|
|
1055
|
|
|
1056 /* first expand it. */
|
|
|
1057 filename = Fexpand_file_name (filename, Qnil);
|
|
|
1058
|
|
|
1059 /* luckily, this returns the short version of each element in the path. */
|
|
558
|
1060 if (GetShortPathName (XSTRING_DATA (filename), shortname, PATH_MAX) == 0)
|
|
428
|
1061 return Qnil;
|
|
|
1062
|
|
|
1063 CORRECT_DIR_SEPS (shortname);
|
|
|
1064
|
|
|
1065 return build_string (shortname);
|
|
|
1066 }
|
|
|
1067
|
|
|
1068
|
|
|
1069 DEFUN ("win32-long-file-name", Fwin32_long_file_name, 1, 1, "", /*
|
|
|
1070 Return the long file name version of the full path of FILENAME.
|
|
|
1071 If FILENAME does not exist, return nil.
|
|
|
1072 All path elements in FILENAME are converted to their long names.
|
|
|
1073 */
|
|
|
1074 (filename))
|
|
|
1075 {
|
|
558
|
1076 char longname[ PATH_MAX ];
|
|
428
|
1077
|
|
|
1078 CHECK_STRING (filename);
|
|
|
1079
|
|
|
1080 /* first expand it. */
|
|
|
1081 filename = Fexpand_file_name (filename, Qnil);
|
|
|
1082
|
|
558
|
1083 if (!win32_get_long_filename (XSTRING_DATA (filename), longname, PATH_MAX))
|
|
428
|
1084 return Qnil;
|
|
|
1085
|
|
|
1086 CORRECT_DIR_SEPS (longname);
|
|
|
1087
|
|
|
1088 return build_string (longname);
|
|
|
1089 }
|
|
|
1090
|
|
|
1091 DEFUN ("win32-set-process-priority", Fwin32_set_process_priority, 2, 2, "", /*
|
|
|
1092 Set the priority of PROCESS to PRIORITY.
|
|
|
1093 If PROCESS is nil, the priority of Emacs is changed, otherwise the
|
|
|
1094 priority of the process whose pid is PROCESS is changed.
|
|
|
1095 PRIORITY should be one of the symbols high, normal, or low;
|
|
|
1096 any other symbol will be interpreted as normal.
|
|
|
1097
|
|
|
1098 If successful, the return value is t, otherwise nil.
|
|
|
1099 */
|
|
|
1100 (process, priority))
|
|
|
1101 {
|
|
|
1102 HANDLE proc_handle = GetCurrentProcess ();
|
|
|
1103 DWORD priority_class = NORMAL_PRIORITY_CLASS;
|
|
|
1104 Lisp_Object result = Qnil;
|
|
|
1105
|
|
|
1106 CHECK_SYMBOL (priority);
|
|
|
1107
|
|
|
1108 if (!NILP (process))
|
|
|
1109 {
|
|
|
1110 DWORD pid;
|
|
|
1111 child_process *cp;
|
|
|
1112
|
|
|
1113 CHECK_INT (process);
|
|
|
1114
|
|
|
1115 /* Allow pid to be an internally generated one, or one obtained
|
|
|
1116 externally. This is necessary because real pids on Win95 are
|
|
|
1117 negative. */
|
|
|
1118
|
|
|
1119 pid = XINT (process);
|
|
|
1120 cp = find_child_pid (pid);
|
|
|
1121 if (cp != NULL)
|
|
|
1122 pid = cp->procinfo.dwProcessId;
|
|
|
1123
|
|
|
1124 proc_handle = OpenProcess (PROCESS_SET_INFORMATION, FALSE, pid);
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 if (EQ (priority, Qhigh))
|
|
|
1128 priority_class = HIGH_PRIORITY_CLASS;
|
|
|
1129 else if (EQ (priority, Qlow))
|
|
|
1130 priority_class = IDLE_PRIORITY_CLASS;
|
|
|
1131
|
|
|
1132 if (proc_handle != NULL)
|
|
|
1133 {
|
|
|
1134 if (SetPriorityClass (proc_handle, priority_class))
|
|
|
1135 result = Qt;
|
|
|
1136 if (!NILP (process))
|
|
|
1137 CloseHandle (proc_handle);
|
|
|
1138 }
|
|
|
1139
|
|
|
1140 return result;
|
|
|
1141 }
|
|
|
1142
|
|
|
1143
|
|
|
1144 DEFUN ("win32-get-locale-info", Fwin32_get_locale_info, 1, 2, "", /*
|
|
|
1145 "Return information about the Windows locale LCID.
|
|
|
1146 By default, return a three letter locale code which encodes the default
|
|
|
1147 language as the first two characters, and the country or regional variant
|
|
|
1148 as the third letter. For example, ENU refers to `English (United States)',
|
|
|
1149 while ENC means `English (Canadian)'.
|
|
|
1150
|
|
|
1151 If the optional argument LONGFORM is non-nil, the long form of the locale
|
|
|
1152 name is returned, e.g. `English (United States)' instead.
|
|
|
1153
|
|
|
1154 If LCID (a 16-bit number) is not a valid locale, the result is nil.
|
|
|
1155 */
|
|
|
1156 (lcid, longform))
|
|
|
1157 {
|
|
|
1158 int got_abbrev;
|
|
|
1159 int got_full;
|
|
|
1160 char abbrev_name[32] = { 0 };
|
|
|
1161 char full_name[256] = { 0 };
|
|
|
1162
|
|
|
1163 CHECK_INT (lcid);
|
|
|
1164
|
|
|
1165 if (!IsValidLocale (XINT (lcid), LCID_SUPPORTED))
|
|
|
1166 return Qnil;
|
|
|
1167
|
|
|
1168 if (NILP (longform))
|
|
|
1169 {
|
|
|
1170 got_abbrev = GetLocaleInfo (XINT (lcid),
|
|
|
1171 LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP,
|
|
|
1172 abbrev_name, sizeof (abbrev_name));
|
|
|
1173 if (got_abbrev)
|
|
|
1174 return build_string (abbrev_name);
|
|
|
1175 }
|
|
|
1176 else
|
|
|
1177 {
|
|
|
1178 got_full = GetLocaleInfo (XINT (lcid),
|
|
|
1179 LOCALE_SLANGUAGE | LOCALE_USE_CP_ACP,
|
|
|
1180 full_name, sizeof (full_name));
|
|
|
1181 if (got_full)
|
|
|
1182 return build_string (full_name);
|
|
|
1183 }
|
|
|
1184
|
|
|
1185 return Qnil;
|
|
|
1186 }
|
|
|
1187
|
|
|
1188
|
|
|
1189 DEFUN ("win32-get-current-locale-id", Fwin32_get_current_locale_id, 0, 0, "", /*
|
|
|
1190 "Return Windows locale id for current locale setting.
|
|
|
1191 This is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1192 human-readable form.
|
|
|
1193 */
|
|
|
1194 ())
|
|
|
1195 {
|
|
|
1196 return make_int (GetThreadLocale ());
|
|
|
1197 }
|
|
|
1198
|
|
|
1199
|
|
|
1200 DEFUN ("win32-get-default-locale-id", Fwin32_get_default_locale_id, 0, 1, "", /*
|
|
|
1201 "Return Windows locale id for default locale setting.
|
|
|
1202 By default, the system default locale setting is returned; if the optional
|
|
|
1203 parameter USERP is non-nil, the user default locale setting is returned.
|
|
|
1204 This is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1205 human-readable form.
|
|
|
1206 */
|
|
|
1207 (userp))
|
|
|
1208 {
|
|
|
1209 if (NILP (userp))
|
|
|
1210 return make_int (GetSystemDefaultLCID ());
|
|
|
1211 return make_int (GetUserDefaultLCID ());
|
|
|
1212 }
|
|
|
1213
|
|
|
1214 DWORD int_from_hex (char * s)
|
|
|
1215 {
|
|
|
1216 DWORD val = 0;
|
|
|
1217 static char hex[] = "0123456789abcdefABCDEF";
|
|
|
1218 char * p;
|
|
|
1219
|
|
|
1220 while (*s && (p = strchr(hex, *s)) != NULL)
|
|
|
1221 {
|
|
|
1222 unsigned digit = p - hex;
|
|
|
1223 if (digit > 15)
|
|
|
1224 digit -= 6;
|
|
|
1225 val = val * 16 + digit;
|
|
|
1226 s++;
|
|
|
1227 }
|
|
|
1228 return val;
|
|
|
1229 }
|
|
|
1230
|
|
|
1231 /* We need to build a global list, since the EnumSystemLocale callback
|
|
|
1232 function isn't given a context pointer. */
|
|
|
1233 Lisp_Object Vwin32_valid_locale_ids;
|
|
|
1234
|
|
|
1235 BOOL CALLBACK enum_locale_fn (LPTSTR localeNum)
|
|
|
1236 {
|
|
|
1237 DWORD id = int_from_hex (localeNum);
|
|
|
1238 Vwin32_valid_locale_ids = Fcons (make_int (id), Vwin32_valid_locale_ids);
|
|
|
1239 return TRUE;
|
|
|
1240 }
|
|
|
1241
|
|
|
1242 DEFUN ("win32-get-valid-locale-ids", Fwin32_get_valid_locale_ids, 0, 0, "", /*
|
|
|
1243 Return list of all valid Windows locale ids.
|
|
|
1244 Each id is a numerical value; use `win32-get-locale-info' to convert to a
|
|
|
1245 human-readable form.
|
|
|
1246 */
|
|
|
1247 ())
|
|
|
1248 {
|
|
|
1249 Vwin32_valid_locale_ids = Qnil;
|
|
|
1250
|
|
|
1251 EnumSystemLocales (enum_locale_fn, LCID_SUPPORTED);
|
|
|
1252
|
|
|
1253 Vwin32_valid_locale_ids = Fnreverse (Vwin32_valid_locale_ids);
|
|
|
1254 return Vwin32_valid_locale_ids;
|
|
|
1255 }
|
|
|
1256
|
|
|
1257
|
|
|
1258 DEFUN ("win32-set-current-locale", Fwin32_set_current_locale, 1, 1, "", /*
|
|
|
1259 Make Windows locale LCID be the current locale setting for Emacs.
|
|
|
1260 If successful, the new locale id is returned, otherwise nil.
|
|
|
1261 */
|
|
|
1262 (lcid))
|
|
|
1263 {
|
|
|
1264 CHECK_INT (lcid);
|
|
|
1265
|
|
|
1266 if (!IsValidLocale (XINT (lcid), LCID_SUPPORTED))
|
|
|
1267 return Qnil;
|
|
|
1268
|
|
442
|
1269 /* #### not supported under win98, but will go away */
|
|
428
|
1270 if (!SetThreadLocale (XINT (lcid)))
|
|
|
1271 return Qnil;
|
|
|
1272
|
|
|
1273 /* Sync with FSF Emacs 19.34.6 note: dwWinThreadId declared in
|
|
|
1274 w32term.h and defined in w32fns.c, both of which are not in current
|
|
440
|
1275 XEmacs. #### Check what we lose by ifdef'ing out these. --marcpa */
|
|
428
|
1276 #if 0
|
|
|
1277 /* Need to set input thread locale if present. */
|
|
|
1278 if (dwWinThreadId)
|
|
|
1279 /* Reply is not needed. */
|
|
|
1280 PostThreadMessage (dwWinThreadId, WM_EMACS_SETLOCALE, XINT (lcid), 0);
|
|
|
1281 #endif
|
|
|
1282
|
|
|
1283 return make_int (GetThreadLocale ());
|
|
|
1284 }
|
|
|
1285
|
|
|
1286
|
|
|
1287 void
|
|
442
|
1288 syms_of_ntproc (void)
|
|
428
|
1289 {
|
|
|
1290 DEFSUBR (Fwin32_short_file_name);
|
|
|
1291 DEFSUBR (Fwin32_long_file_name);
|
|
|
1292 DEFSUBR (Fwin32_set_process_priority);
|
|
|
1293 DEFSUBR (Fwin32_get_locale_info);
|
|
|
1294 DEFSUBR (Fwin32_get_current_locale_id);
|
|
|
1295 DEFSUBR (Fwin32_get_default_locale_id);
|
|
|
1296 DEFSUBR (Fwin32_get_valid_locale_ids);
|
|
|
1297 DEFSUBR (Fwin32_set_current_locale);
|
|
|
1298 }
|
|
|
1299
|
|
|
1300
|
|
|
1301 void
|
|
|
1302 vars_of_ntproc (void)
|
|
|
1303 {
|
|
563
|
1304 DEFSYMBOL (Qhigh);
|
|
|
1305 DEFSYMBOL (Qlow);
|
|
428
|
1306
|
|
|
1307 DEFVAR_LISP ("win32-quote-process-args", &Vwin32_quote_process_args /*
|
|
|
1308 Non-nil enables quoting of process arguments to ensure correct parsing.
|
|
|
1309 Because Windows does not directly pass argv arrays to child processes,
|
|
|
1310 programs have to reconstruct the argv array by parsing the command
|
|
|
1311 line string. For an argument to contain a space, it must be enclosed
|
|
|
1312 in double quotes or it will be parsed as multiple arguments.
|
|
|
1313
|
|
|
1314 If the value is a character, that character will be used to escape any
|
|
|
1315 quote characters that appear, otherwise a suitable escape character
|
|
|
1316 will be chosen based on the type of the program.
|
|
|
1317 */ );
|
|
|
1318 Vwin32_quote_process_args = Qt;
|
|
|
1319
|
|
|
1320 DEFVAR_LISP ("win32-start-process-show-window",
|
|
|
1321 &Vwin32_start_process_show_window /*
|
|
|
1322 When nil, processes started via start-process hide their windows.
|
|
|
1323 When non-nil, they show their window in the method of their choice.
|
|
|
1324 */ );
|
|
|
1325 Vwin32_start_process_show_window = Qnil;
|
|
|
1326
|
|
|
1327 DEFVAR_LISP ("win32-start-process-share-console",
|
|
|
1328 &Vwin32_start_process_share_console /*
|
|
|
1329 When nil, processes started via start-process are given a new console.
|
|
|
1330 When non-nil, they share the Emacs console; this has the limitation of
|
|
638
|
1331 allowing only one DOS subprocess to run at a time (whether started directly
|
|
428
|
1332 or indirectly by Emacs), and preventing Emacs from cleanly terminating the
|
|
|
1333 subprocess group, but may allow Emacs to interrupt a subprocess that doesn't
|
|
|
1334 otherwise respond to interrupts from Emacs.
|
|
|
1335 */ );
|
|
|
1336 Vwin32_start_process_share_console = Qt;
|
|
|
1337
|
|
|
1338 DEFVAR_LISP ("win32-pipe-read-delay", &Vwin32_pipe_read_delay /*
|
|
|
1339 Forced delay before reading subprocess output.
|
|
|
1340 This is done to improve the buffering of subprocess output, by
|
|
|
1341 avoiding the inefficiency of frequently reading small amounts of data.
|
|
|
1342
|
|
|
1343 If positive, the value is the number of milliseconds to sleep before
|
|
|
1344 reading the subprocess output. If negative, the magnitude is the number
|
|
|
1345 of time slices to wait (effectively boosting the priority of the child
|
|
|
1346 process temporarily). A value of zero disables waiting entirely.
|
|
|
1347 */ );
|
|
|
1348 Vwin32_pipe_read_delay = make_int (50);
|
|
|
1349
|
|
|
1350 #if 0
|
|
|
1351 DEFVAR_LISP ("win32-generate-fake-inodes", &Vwin32_generate_fake_inodes /*
|
|
|
1352 "Non-nil means attempt to fake realistic inode values.
|
|
|
1353 This works by hashing the truename of files, and should detect
|
|
|
1354 aliasing between long and short (8.3 DOS) names, but can have
|
|
|
1355 false positives because of hash collisions. Note that determining
|
|
|
1356 the truename of a file can be slow.
|
|
|
1357 */ );
|
|
|
1358 Vwin32_generate_fake_inodes = Qnil;
|
|
|
1359 #endif
|
|
|
1360 }
|
|
|
1361
|
|
|
1362 /* end of ntproc.c */
|
