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428
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1 /* Utility and Unix shadow routines for XEmacs on Windows NT.
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2 Copyright (C) 1994, 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 the Free
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18 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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19 02111-1307, USA.
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20
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21
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22 Geoff Voelker (voelker@cs.washington.edu) 7-29-94 */
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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 /* Sync'ed with 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
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29 #undef signal
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30 #define getwd _getwd
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31 #include "lisp.h"
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32 #undef getwd
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33
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34 #include "systime.h"
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35 #include "syssignal.h"
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36 #include "sysproc.h"
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37 #include "sysfile.h"
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38
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39 #include <ctype.h>
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40 #include <direct.h>
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41 #include <errno.h>
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42 #include <fcntl.h>
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43 #include <io.h>
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44 #include <pwd.h>
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45 #include <signal.h>
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46 #include <string.h>
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47 #include <stdlib.h>
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48 #include <stdio.h>
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49
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50 #include <windows.h>
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51 #ifndef __MINGW32__
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52 #include <mmsystem.h>
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53 #else
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54 typedef void (CALLBACK TIMECALLBACK)(UINT uTimerID, UINT uMsg, DWORD dwUser, DWORD dw1, DWORD dw2);
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55
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56 typedef TIMECALLBACK FAR *LPTIMECALLBACK;
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57 DWORD WINAPI timeGetTime(void);
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58 MMRESULT WINAPI timeSetEvent(UINT uDelay, UINT uResolution,
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59 LPTIMECALLBACK fptc, DWORD dwUser, UINT fuEvent);
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60 MMRESULT WINAPI timeKillEvent(UINT uTimerID);
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61 MMRESULT WINAPI timeGetDevCaps(TIMECAPS* ptc, UINT cbtc);
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62 MMRESULT WINAPI timeBeginPeriod(UINT uPeriod);
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63 MMRESULT WINAPI timeEndPeriod(UINT uPeriod);
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64 #endif
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65
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66 #include "nt.h"
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67 #include <sys/dir.h>
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68 #include "ntheap.h"
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69
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70
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71 extern Lisp_Object Vmswindows_downcase_file_names;
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72 #if 0
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73 extern Lisp_Object Vwin32_generate_fake_inodes;
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74 #endif
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75 extern Lisp_Object Vmswindows_get_true_file_attributes;
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76
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77 extern char *get_home_directory(void);
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78
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79 static char startup_dir[ MAXPATHLEN ];
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80
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81 /* Get the current working directory. */
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82 char *
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83 getwd (char *dir)
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84 {
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85 #if 0
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86 if (GetCurrentDirectory (MAXPATHLEN, dir) > 0)
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87 return dir;
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88 return NULL;
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89 #else
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90 /* Emacs doesn't actually change directory itself, and we want to
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91 force our real wd to be where emacs.exe is to avoid unnecessary
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92 conflicts when trying to rename or delete directories. */
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93 strcpy (dir, startup_dir);
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94 return dir;
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95 #endif
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96 }
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97
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98 /* Emulate getloadavg. */
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99 int
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100 getloadavg (double loadavg[], int nelem)
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101 {
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102 int i;
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103
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104 /* A faithful emulation is going to have to be saved for a rainy day. */
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105 for (i = 0; i < nelem; i++)
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106 {
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107 loadavg[i] = 0.0;
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108 }
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109 return i;
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110 }
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111
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112 /* Emulate getpwuid, getpwnam and others. */
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113
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114 #define PASSWD_FIELD_SIZE 256
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115
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116 static char the_passwd_name[PASSWD_FIELD_SIZE];
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117 static char the_passwd_passwd[PASSWD_FIELD_SIZE];
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118 static char the_passwd_gecos[PASSWD_FIELD_SIZE];
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119 static char the_passwd_dir[PASSWD_FIELD_SIZE];
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120 static char the_passwd_shell[PASSWD_FIELD_SIZE];
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121
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122 static struct passwd the_passwd =
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123 {
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124 the_passwd_name,
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125 the_passwd_passwd,
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126 0,
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127 0,
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128 0,
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129 the_passwd_gecos,
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130 the_passwd_dir,
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131 the_passwd_shell,
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132 };
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133
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134 uid_t
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135 getuid ()
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136 {
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137 return the_passwd.pw_uid;
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138 }
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139
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140 uid_t
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141 geteuid ()
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142 {
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143 /* I could imagine arguing for checking to see whether the user is
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144 in the Administrators group and returning a UID of 0 for that
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145 case, but I don't know how wise that would be in the long run. */
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146 return getuid ();
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147 }
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148
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149 gid_t
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150 getgid ()
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151 {
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152 return the_passwd.pw_gid;
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153 }
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154
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155 gid_t
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156 getegid ()
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157 {
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158 return getgid ();
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159 }
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160
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161 struct passwd *
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162 getpwuid (uid_t uid)
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163 {
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164 if (uid == the_passwd.pw_uid)
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165 return &the_passwd;
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166 return NULL;
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167 }
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168
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169 struct passwd *
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170 getpwnam (const char *name)
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171 {
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172 struct passwd *pw;
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173
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174 pw = getpwuid (getuid ());
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175 if (!pw)
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176 return pw;
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177
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178 if (stricmp (name, pw->pw_name))
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179 return NULL;
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180
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181 return pw;
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182 }
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183
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184 void
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185 init_user_info ()
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186 {
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187 /* Find the user's real name by opening the process token and
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188 looking up the name associated with the user-sid in that token.
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189
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190 Use the relative portion of the identifier authority value from
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191 the user-sid as the user id value (same for group id using the
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192 primary group sid from the process token). */
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193
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194 char user_sid[256], name[256], domain[256];
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195 DWORD length = sizeof (name), dlength = sizeof (domain), trash;
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196 HANDLE token = NULL;
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197 SID_NAME_USE user_type;
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198
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199 if (OpenProcessToken (GetCurrentProcess (), TOKEN_QUERY, &token)
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200 && GetTokenInformation (token, TokenUser,
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201 (PVOID) user_sid, sizeof (user_sid), &trash)
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202 && LookupAccountSid (NULL, *((PSID *) user_sid), name, &length,
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203 domain, &dlength, &user_type))
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204 {
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205 strcpy (the_passwd.pw_name, name);
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206 /* Determine a reasonable uid value. */
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207 if (stricmp ("administrator", name) == 0)
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208 {
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209 the_passwd.pw_uid = 0;
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210 the_passwd.pw_gid = 0;
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211 }
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212 else
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213 {
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214 SID_IDENTIFIER_AUTHORITY * pSIA;
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215
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216 pSIA = GetSidIdentifierAuthority (*((PSID *) user_sid));
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217 /* I believe the relative portion is the last 4 bytes (of 6)
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218 with msb first. */
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219 the_passwd.pw_uid = ((pSIA->Value[2] << 24) +
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220 (pSIA->Value[3] << 16) +
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221 (pSIA->Value[4] << 8) +
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222 (pSIA->Value[5] << 0));
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223 /* restrict to conventional uid range for normal users */
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224 the_passwd.pw_uid = the_passwd.pw_uid % 60001;
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225
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226 /* Get group id */
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227 if (GetTokenInformation (token, TokenPrimaryGroup,
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228 (PVOID) user_sid, sizeof (user_sid), &trash))
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229 {
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230 SID_IDENTIFIER_AUTHORITY * pSIA;
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231
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232 pSIA = GetSidIdentifierAuthority (*((PSID *) user_sid));
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233 the_passwd.pw_gid = ((pSIA->Value[2] << 24) +
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234 (pSIA->Value[3] << 16) +
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235 (pSIA->Value[4] << 8) +
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236 (pSIA->Value[5] << 0));
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237 /* I don't know if this is necessary, but for safety... */
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238 the_passwd.pw_gid = the_passwd.pw_gid % 60001;
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239 }
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240 else
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241 the_passwd.pw_gid = the_passwd.pw_uid;
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242 }
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243 }
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244 /* If security calls are not supported (presumably because we
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245 are running under Windows 95), fallback to this. */
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246 else if (GetUserName (name, &length))
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247 {
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248 strcpy (the_passwd.pw_name, name);
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249 if (stricmp ("administrator", name) == 0)
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250 the_passwd.pw_uid = 0;
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251 else
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252 the_passwd.pw_uid = 123;
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253 the_passwd.pw_gid = the_passwd.pw_uid;
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254 }
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255 else
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256 {
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257 strcpy (the_passwd.pw_name, "unknown");
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258 the_passwd.pw_uid = 123;
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259 the_passwd.pw_gid = 123;
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260 }
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261
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262 /* Ensure HOME and SHELL are defined. */
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263 #if 0
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264 /*
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265 * With XEmacs, setting $HOME is deprecated.
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266 */
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267 if (getenv ("HOME") == NULL)
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268 putenv ("HOME=c:/");
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269 #endif
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270 if (getenv ("SHELL") == NULL)
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271 putenv ((GetVersion () & 0x80000000) ? "SHELL=command" : "SHELL=cmd");
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272
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273 /* Set dir and shell from environment variables. */
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274 strcpy (the_passwd.pw_dir, get_home_directory());
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275 strcpy (the_passwd.pw_shell, getenv ("SHELL"));
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276
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277 if (token)
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278 CloseHandle (token);
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279 }
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280
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281 /* Normalize filename by converting all path separators to
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282 the specified separator. Also conditionally convert upper
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283 case path name components to lower case. */
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284
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285 static void
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286 normalize_filename (fp, path_sep)
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287 REGISTER char *fp;
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288 char path_sep;
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289 {
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290 char sep;
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291 char *elem;
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292
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293 /* Always lower-case drive letters a-z, even if the filesystem
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294 preserves case in filenames.
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295 This is so filenames can be compared by string comparison
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296 functions that are case-sensitive. Even case-preserving filesystems
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297 do not distinguish case in drive letters. */
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298 if (fp[1] == ':' && *fp >= 'A' && *fp <= 'Z')
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299 {
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300 *fp += 'a' - 'A';
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301 fp += 2;
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302 }
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303
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304 if (NILP (Vmswindows_downcase_file_names))
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305 {
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306 while (*fp)
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307 {
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308 if (*fp == '/' || *fp == '\\')
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309 *fp = path_sep;
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310 fp++;
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311 }
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312 return;
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313 }
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314
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315 sep = path_sep; /* convert to this path separator */
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316 elem = fp; /* start of current path element */
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317
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318 do {
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319 if (*fp >= 'a' && *fp <= 'z')
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320 elem = 0; /* don't convert this element */
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321
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322 if (*fp == 0 || *fp == ':')
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323 {
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324 sep = *fp; /* restore current separator (or 0) */
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325 *fp = '/'; /* after conversion of this element */
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326 }
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327
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328 if (*fp == '/' || *fp == '\\')
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329 {
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330 if (elem && elem != fp)
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331 {
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332 *fp = 0; /* temporary end of string */
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333 _strlwr (elem); /* while we convert to lower case */
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334 }
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335 *fp = sep; /* convert (or restore) path separator */
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336 elem = fp + 1; /* next element starts after separator */
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337 sep = path_sep;
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338 }
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339 } while (*fp++);
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340 }
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341
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342 /* Destructively turn backslashes into slashes. */
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343 void
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344 dostounix_filename (p)
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345 REGISTER char *p;
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346 {
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347 normalize_filename (p, '/');
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348 }
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349
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350 /* Destructively turn slashes into backslashes. */
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351 void
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352 unixtodos_filename (p)
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353 REGISTER char *p;
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354 {
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355 normalize_filename (p, '\\');
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356 }
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357
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358 /* Remove all CR's that are followed by a LF.
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359 (From msdos.c...probably should figure out a way to share it,
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360 although this code isn't going to ever change.) */
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361 int
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362 crlf_to_lf (n, buf, lf_count)
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363 REGISTER int n;
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364 REGISTER unsigned char *buf;
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365 REGISTER unsigned *lf_count;
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366 {
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367 unsigned char *np = buf;
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368 unsigned char *startp = buf;
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369 unsigned char *endp = buf + n;
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370
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371 if (n == 0)
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372 return n;
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373 while (buf < endp - 1)
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374 {
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375 if (*buf == 0x0a)
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376 (*lf_count)++;
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377 if (*buf == 0x0d)
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378 {
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379 if (*(++buf) != 0x0a)
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380 *np++ = 0x0d;
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381 }
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382 else
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383 *np++ = *buf++;
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384 }
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385 if (buf < endp)
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386 {
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387 if (*buf == 0x0a)
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388 (*lf_count)++;
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389 *np++ = *buf++;
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390 }
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391 return np - startp;
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392 }
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393
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394 /* Parse the root part of file name, if present. Return length and
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395 optionally store pointer to char after root. */
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396 static int
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397 parse_root (char * name, char ** pPath)
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398 {
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399 char * start = name;
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400
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401 if (name == NULL)
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402 return 0;
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403
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404 /* find the root name of the volume if given */
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405 if (isalpha (name[0]) && name[1] == ':')
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406 {
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407 /* skip past drive specifier */
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408 name += 2;
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409 if (IS_DIRECTORY_SEP (name[0]))
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410 name++;
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411 }
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412 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
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413 {
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414 int slashes = 2;
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415 name += 2;
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416 do
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417 {
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418 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
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419 break;
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420 name++;
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421 }
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422 while ( *name );
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423 if (IS_DIRECTORY_SEP (name[0]))
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424 name++;
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425 }
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426
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427 if (pPath)
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428 *pPath = name;
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429
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430 return name - start;
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431 }
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432
|
|
|
433 /* Get long base name for name; name is assumed to be absolute. */
|
|
|
434 static int
|
|
|
435 get_long_basename (char * name, char * buf, int size)
|
|
|
436 {
|
|
|
437 WIN32_FIND_DATA find_data;
|
|
|
438 HANDLE dir_handle;
|
|
|
439 int len = 0;
|
|
|
440 #ifdef PIGSFLY
|
|
|
441 char *p;
|
|
|
442
|
|
|
443 /* If the last component of NAME has a wildcard character,
|
|
|
444 return it as the basename. */
|
|
|
445 p = name + strlen (name);
|
|
|
446 while (*p != '\\' && *p != ':' && p > name) p--;
|
|
|
447 if (p > name) p++;
|
|
|
448 if (strchr (p, '*') || strchr (p, '?'))
|
|
|
449 {
|
|
|
450 if ((len = strlen (p)) < size)
|
|
|
451 memcpy (buf, p, len + 1);
|
|
|
452 else
|
|
|
453 len = 0;
|
|
|
454 return len;
|
|
|
455 }
|
|
|
456 #endif
|
|
|
457
|
|
|
458 dir_handle = FindFirstFile (name, &find_data);
|
|
|
459 if (dir_handle != INVALID_HANDLE_VALUE)
|
|
|
460 {
|
|
|
461 if ((len = strlen (find_data.cFileName)) < size)
|
|
|
462 memcpy (buf, find_data.cFileName, len + 1);
|
|
|
463 else
|
|
|
464 len = 0;
|
|
|
465 FindClose (dir_handle);
|
|
|
466 }
|
|
|
467 return len;
|
|
|
468 }
|
|
|
469
|
|
|
470 /* Get long name for file, if possible (assumed to be absolute). */
|
|
|
471 BOOL
|
|
|
472 win32_get_long_filename (char * name, char * buf, int size)
|
|
|
473 {
|
|
|
474 char * o = buf;
|
|
|
475 char * p;
|
|
|
476 char * q;
|
|
|
477 char full[ MAX_PATH ];
|
|
|
478 int len;
|
|
|
479
|
|
|
480 len = strlen (name);
|
|
|
481 if (len >= MAX_PATH)
|
|
|
482 return FALSE;
|
|
|
483
|
|
|
484 /* Use local copy for destructive modification. */
|
|
|
485 memcpy (full, name, len+1);
|
|
|
486 unixtodos_filename (full);
|
|
|
487
|
|
|
488 /* Copy root part verbatim. */
|
|
|
489 len = parse_root (full, &p);
|
|
|
490 memcpy (o, full, len);
|
|
|
491 o += len;
|
|
|
492 size -= len;
|
|
|
493
|
|
|
494 do
|
|
|
495 {
|
|
|
496 q = p;
|
|
|
497 p = strchr (q, '\\');
|
|
|
498 if (p) *p = '\0';
|
|
|
499 len = get_long_basename (full, o, size);
|
|
|
500 if (len > 0)
|
|
|
501 {
|
|
|
502 o += len;
|
|
|
503 size -= len;
|
|
|
504 if (p != NULL)
|
|
|
505 {
|
|
|
506 *p++ = '\\';
|
|
|
507 if (size < 2)
|
|
|
508 return FALSE;
|
|
|
509 *o++ = '\\';
|
|
|
510 size--;
|
|
|
511 *o = '\0';
|
|
|
512 }
|
|
|
513 }
|
|
|
514 else
|
|
|
515 return FALSE;
|
|
|
516 }
|
|
|
517 while (p != NULL && *p);
|
|
|
518
|
|
|
519 return TRUE;
|
|
|
520 }
|
|
|
521
|
|
|
522
|
|
|
523 /* Routines that are no-ops on NT but are defined to get Emacs to compile. */
|
|
|
524
|
|
|
525 #if 0 /* #### We do not need those, do we? -kkm */
|
|
|
526 int
|
|
|
527 unrequest_sigio (void)
|
|
|
528 {
|
|
|
529 return 0;
|
|
|
530 }
|
|
|
531
|
|
|
532 int
|
|
|
533 request_sigio (void)
|
|
|
534 {
|
|
|
535 return 0;
|
|
|
536 }
|
|
|
537 #endif /* 0 */
|
|
|
538
|
|
|
539 #define REG_ROOT "SOFTWARE\\GNU\\XEmacs"
|
|
|
540
|
|
|
541 LPBYTE
|
|
|
542 nt_get_resource (key, lpdwtype)
|
|
|
543 char *key;
|
|
|
544 LPDWORD lpdwtype;
|
|
|
545 {
|
|
|
546 LPBYTE lpvalue;
|
|
|
547 HKEY hrootkey = NULL;
|
|
|
548 DWORD cbData;
|
|
|
549
|
|
|
550 /* Check both the current user and the local machine to see if
|
|
|
551 we have any resources. */
|
|
|
552
|
|
|
553 if (RegOpenKeyEx (HKEY_CURRENT_USER, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
|
|
|
554 {
|
|
|
555 lpvalue = NULL;
|
|
|
556
|
|
|
557 if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS
|
|
|
558 && (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL
|
|
|
559 && RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
|
|
|
560 {
|
|
|
561 return (lpvalue);
|
|
|
562 }
|
|
|
563
|
|
|
564 if (lpvalue) xfree (lpvalue);
|
|
|
565
|
|
|
566 RegCloseKey (hrootkey);
|
|
|
567 }
|
|
|
568
|
|
|
569 if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, REG_ROOT, 0, KEY_READ, &hrootkey) == ERROR_SUCCESS)
|
|
|
570 {
|
|
|
571 lpvalue = NULL;
|
|
|
572
|
|
|
573 if (RegQueryValueEx (hrootkey, key, NULL, NULL, NULL, &cbData) == ERROR_SUCCESS &&
|
|
|
574 (lpvalue = (LPBYTE) xmalloc (cbData)) != NULL &&
|
|
|
575 RegQueryValueEx (hrootkey, key, NULL, lpdwtype, lpvalue, &cbData) == ERROR_SUCCESS)
|
|
|
576 {
|
|
|
577 return (lpvalue);
|
|
|
578 }
|
|
|
579
|
|
|
580 if (lpvalue) xfree (lpvalue);
|
|
|
581
|
|
|
582 RegCloseKey (hrootkey);
|
|
|
583 }
|
|
|
584
|
|
|
585 return (NULL);
|
|
|
586 }
|
|
|
587
|
|
|
588 void
|
|
|
589 init_environment ()
|
|
|
590 {
|
|
|
591 /* Check for environment variables and use registry if they don't exist */
|
|
|
592 {
|
|
|
593 int i;
|
|
|
594 LPBYTE lpval;
|
|
|
595 DWORD dwType;
|
|
|
596
|
|
|
597 static char * env_vars[] =
|
|
|
598 {
|
|
|
599 "HOME",
|
|
|
600 "emacs_dir",
|
|
|
601 "EMACSLOADPATH",
|
|
|
602 "EMACSDEBUGPATHS",
|
|
|
603 "SHELL",
|
|
|
604 "CMDPROXY",
|
|
|
605 "EMACSDATA",
|
|
|
606 "EMACSPATH",
|
|
|
607 "EMACSPACKAGEPATH",
|
|
|
608 "EMACSLOCKDIR",
|
|
|
609 "INFOPATH"
|
|
|
610 };
|
|
430
|
611 #ifdef HEAP_IN_DATA
|
|
|
612 cache_system_info ();
|
|
|
613 #endif
|
|
428
|
614 for (i = 0; i < countof (env_vars); i++)
|
|
|
615 {
|
|
|
616 if (!getenv (env_vars[i]) &&
|
|
|
617 (lpval = nt_get_resource (env_vars[i], &dwType)) != NULL)
|
|
|
618 {
|
|
|
619 if (dwType == REG_EXPAND_SZ)
|
|
|
620 {
|
|
|
621 char buf1[500], buf2[500];
|
|
|
622
|
|
|
623 ExpandEnvironmentStrings ((LPSTR) lpval, buf1, 500);
|
|
|
624 _snprintf (buf2, 499, "%s=%s", env_vars[i], buf1);
|
|
|
625 putenv (strdup (buf2));
|
|
|
626 }
|
|
|
627 else if (dwType == REG_SZ)
|
|
|
628 {
|
|
|
629 char buf[500];
|
|
|
630
|
|
|
631 _snprintf (buf, 499, "%s=%s", env_vars[i], lpval);
|
|
|
632 putenv (strdup (buf));
|
|
|
633 }
|
|
|
634
|
|
|
635 xfree (lpval);
|
|
|
636 }
|
|
|
637 }
|
|
|
638 }
|
|
|
639
|
|
|
640 /* Another special case: on NT, the PATH variable is actually named
|
|
|
641 "Path" although cmd.exe (perhaps NT itself) arranges for
|
|
|
642 environment variable lookup and setting to be case insensitive.
|
|
|
643 However, Emacs assumes a fully case sensitive environment, so we
|
|
|
644 need to change "Path" to "PATH" to match the expectations of
|
|
|
645 various elisp packages. We do this by the sneaky method of
|
|
|
646 modifying the string in the C runtime environ entry.
|
|
|
647
|
|
|
648 The same applies to COMSPEC. */
|
|
|
649 {
|
|
|
650 char ** envp;
|
|
|
651
|
|
|
652 for (envp = environ; *envp; envp++)
|
|
|
653 if (_strnicmp (*envp, "PATH=", 5) == 0)
|
|
|
654 memcpy (*envp, "PATH=", 5);
|
|
|
655 else if (_strnicmp (*envp, "COMSPEC=", 8) == 0)
|
|
|
656 memcpy (*envp, "COMSPEC=", 8);
|
|
|
657 }
|
|
|
658
|
|
|
659 /* Remember the initial working directory for getwd, then make the
|
|
|
660 real wd be the location of emacs.exe to avoid conflicts when
|
|
|
661 renaming or deleting directories. (We also don't call chdir when
|
|
|
662 running subprocesses for the same reason.) */
|
|
|
663 if (!GetCurrentDirectory (MAXPATHLEN, startup_dir))
|
|
|
664 abort ();
|
|
|
665
|
|
|
666 {
|
|
|
667 char *p;
|
|
|
668 char modname[MAX_PATH];
|
|
|
669
|
|
|
670 if (!GetModuleFileName (NULL, modname, MAX_PATH))
|
|
|
671 abort ();
|
|
|
672 if ((p = strrchr (modname, '\\')) == NULL)
|
|
|
673 abort ();
|
|
|
674 *p = 0;
|
|
|
675
|
|
|
676 SetCurrentDirectory (modname);
|
|
|
677 }
|
|
|
678
|
|
|
679 init_user_info ();
|
|
|
680 }
|
|
|
681
|
|
|
682 #ifndef HAVE_X_WINDOWS
|
|
|
683 /* X11R6 on NT provides the single parameter version of this command. */
|
|
|
684
|
|
|
685 #include <sys/timeb.h>
|
|
|
686
|
|
|
687 /* Emulate gettimeofday (Ulrich Leodolter, 1/11/95). */
|
|
|
688 void
|
|
|
689 gettimeofday (struct timeval *tv, struct timezone *tz)
|
|
|
690 {
|
|
|
691 struct _timeb tb;
|
|
|
692 _ftime (&tb);
|
|
|
693
|
|
|
694 tv->tv_sec = tb.time;
|
|
|
695 tv->tv_usec = tb.millitm * 1000L;
|
|
|
696 if (tz)
|
|
|
697 {
|
|
|
698 tz->tz_minuteswest = tb.timezone; /* minutes west of Greenwich */
|
|
|
699 tz->tz_dsttime = tb.dstflag; /* type of dst correction */
|
|
|
700 }
|
|
|
701 }
|
|
|
702
|
|
|
703 #endif /* HAVE_X_WINDOWS */
|
|
|
704
|
|
|
705 /* ------------------------------------------------------------------------- */
|
|
|
706 /* IO support and wrapper functions for Win32 API. */
|
|
|
707 /* ------------------------------------------------------------------------- */
|
|
|
708
|
|
|
709 /* Place a wrapper around the MSVC version of ctime. It returns NULL
|
|
|
710 on network directories, so we handle that case here.
|
|
|
711 (Ulrich Leodolter, 1/11/95). */
|
|
|
712 char *
|
|
|
713 sys_ctime (const time_t *t)
|
|
|
714 {
|
|
|
715 char *str = (char *) ctime (t);
|
|
|
716 return (str ? str : "Sun Jan 01 00:00:00 1970");
|
|
|
717 }
|
|
|
718
|
|
|
719 /* Emulate sleep...we could have done this with a define, but that
|
|
|
720 would necessitate including windows.h in the files that used it.
|
|
|
721 This is much easier. */
|
|
|
722
|
|
|
723 #ifndef HAVE_X_WINDOWS
|
|
|
724 void
|
|
|
725 sys_sleep (int seconds)
|
|
|
726 {
|
|
|
727 Sleep (seconds * 1000);
|
|
|
728 }
|
|
|
729 #endif
|
|
|
730
|
|
|
731 /* #### This is an evil dirty hack. We must get rid of it.
|
|
|
732 Word "munging" is not in XEmacs lexicon. - kkm */
|
|
|
733
|
|
|
734 /* Internal MSVC data and functions for low-level descriptor munging */
|
|
|
735 #if (_MSC_VER == 900)
|
|
|
736 extern char _osfile[];
|
|
|
737 #endif
|
|
|
738 extern int __cdecl _set_osfhnd (int fd, long h);
|
|
|
739 extern int __cdecl _free_osfhnd (int fd);
|
|
|
740
|
|
|
741 /* parallel array of private info on file handles */
|
|
|
742 filedesc fd_info [ MAXDESC ];
|
|
|
743
|
|
|
744 typedef struct volume_info_data {
|
|
|
745 struct volume_info_data * next;
|
|
|
746
|
|
|
747 /* time when info was obtained */
|
|
|
748 DWORD timestamp;
|
|
|
749
|
|
|
750 /* actual volume info */
|
|
|
751 char * root_dir;
|
|
|
752 DWORD serialnum;
|
|
|
753 DWORD maxcomp;
|
|
|
754 DWORD flags;
|
|
|
755 char * name;
|
|
|
756 char * type;
|
|
|
757 } volume_info_data;
|
|
|
758
|
|
|
759 /* Global referenced by various functions. */
|
|
|
760 static volume_info_data volume_info;
|
|
|
761
|
|
|
762 /* Vector to indicate which drives are local and fixed (for which cached
|
|
|
763 data never expires). */
|
|
|
764 static BOOL fixed_drives[26];
|
|
|
765
|
|
|
766 /* Consider cached volume information to be stale if older than 10s,
|
|
|
767 at least for non-local drives. Info for fixed drives is never stale. */
|
|
|
768 #define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' )
|
|
|
769 #define VOLINFO_STILL_VALID( root_dir, info ) \
|
|
|
770 ( ( isalpha (root_dir[0]) && \
|
|
|
771 fixed_drives[ DRIVE_INDEX (root_dir[0]) ] ) \
|
|
|
772 || GetTickCount () - info->timestamp < 10000 )
|
|
|
773
|
|
|
774 /* Cache support functions. */
|
|
|
775
|
|
|
776 /* Simple linked list with linear search is sufficient. */
|
|
|
777 static volume_info_data *volume_cache = NULL;
|
|
|
778
|
|
|
779 static volume_info_data *
|
|
|
780 lookup_volume_info (char * root_dir)
|
|
|
781 {
|
|
|
782 volume_info_data * info;
|
|
|
783
|
|
|
784 for (info = volume_cache; info; info = info->next)
|
|
|
785 if (stricmp (info->root_dir, root_dir) == 0)
|
|
|
786 break;
|
|
|
787 return info;
|
|
|
788 }
|
|
|
789
|
|
|
790 static void
|
|
|
791 add_volume_info (char * root_dir, volume_info_data * info)
|
|
|
792 {
|
|
|
793 info->root_dir = xstrdup (root_dir);
|
|
|
794 info->next = volume_cache;
|
|
|
795 volume_cache = info;
|
|
|
796 }
|
|
|
797
|
|
|
798
|
|
|
799 /* Wrapper for GetVolumeInformation, which uses caching to avoid
|
|
|
800 performance penalty (~2ms on 486 for local drives, 7.5ms for local
|
|
|
801 cdrom drive, ~5-10ms or more for remote drives on LAN). */
|
|
|
802 volume_info_data *
|
|
|
803 GetCachedVolumeInformation (char * root_dir)
|
|
|
804 {
|
|
|
805 volume_info_data * info;
|
|
|
806 char default_root[ MAX_PATH ];
|
|
|
807
|
|
|
808 /* NULL for root_dir means use root from current directory. */
|
|
|
809 if (root_dir == NULL)
|
|
|
810 {
|
|
|
811 if (GetCurrentDirectory (MAX_PATH, default_root) == 0)
|
|
|
812 return NULL;
|
|
|
813 parse_root (default_root, &root_dir);
|
|
|
814 *root_dir = 0;
|
|
|
815 root_dir = default_root;
|
|
|
816 }
|
|
|
817
|
|
|
818 /* Local fixed drives can be cached permanently. Removable drives
|
|
|
819 cannot be cached permanently, since the volume name and serial
|
|
|
820 number (if nothing else) can change. Remote drives should be
|
|
|
821 treated as if they are removable, since there is no sure way to
|
|
|
822 tell whether they are or not. Also, the UNC association of drive
|
|
|
823 letters mapped to remote volumes can be changed at any time (even
|
|
|
824 by other processes) without notice.
|
|
|
825
|
|
|
826 As a compromise, so we can benefit from caching info for remote
|
|
|
827 volumes, we use a simple expiry mechanism to invalidate cache
|
|
|
828 entries that are more than ten seconds old. */
|
|
|
829
|
|
|
830 #if 0
|
|
|
831 /* No point doing this, because WNetGetConnection is even slower than
|
|
|
832 GetVolumeInformation, consistently taking ~50ms on a 486 (FWIW,
|
|
|
833 GetDriveType is about the only call of this type which does not
|
|
|
834 involve network access, and so is extremely quick). */
|
|
|
835
|
|
|
836 /* Map drive letter to UNC if remote. */
|
|
|
837 if ( isalpha( root_dir[0] ) && !fixed[ DRIVE_INDEX( root_dir[0] ) ] )
|
|
|
838 {
|
|
|
839 char remote_name[ 256 ];
|
|
|
840 char drive[3] = { root_dir[0], ':' };
|
|
|
841
|
|
|
842 if (WNetGetConnection (drive, remote_name, sizeof (remote_name))
|
|
|
843 == NO_ERROR)
|
|
|
844 /* do something */ ;
|
|
|
845 }
|
|
|
846 #endif
|
|
|
847
|
|
|
848 info = lookup_volume_info (root_dir);
|
|
|
849
|
|
|
850 if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info))
|
|
|
851 {
|
|
|
852 char name[ 256 ];
|
|
|
853 DWORD serialnum;
|
|
|
854 DWORD maxcomp;
|
|
|
855 DWORD flags;
|
|
|
856 char type[ 256 ];
|
|
|
857
|
|
|
858 /* Info is not cached, or is stale. */
|
|
|
859 if (!GetVolumeInformation (root_dir,
|
|
|
860 name, sizeof (name),
|
|
|
861 &serialnum,
|
|
|
862 &maxcomp,
|
|
|
863 &flags,
|
|
|
864 type, sizeof (type)))
|
|
|
865 return NULL;
|
|
|
866
|
|
|
867 /* Cache the volume information for future use, overwriting existing
|
|
|
868 entry if present. */
|
|
|
869 if (info == NULL)
|
|
|
870 {
|
|
|
871 info = (volume_info_data *) xmalloc (sizeof (volume_info_data));
|
|
|
872 add_volume_info (root_dir, info);
|
|
|
873 }
|
|
|
874 else
|
|
|
875 {
|
|
|
876 free (info->name);
|
|
|
877 free (info->type);
|
|
|
878 }
|
|
|
879
|
|
|
880 info->name = xstrdup (name);
|
|
|
881 info->serialnum = serialnum;
|
|
|
882 info->maxcomp = maxcomp;
|
|
|
883 info->flags = flags;
|
|
|
884 info->type = xstrdup (type);
|
|
|
885 info->timestamp = GetTickCount ();
|
|
|
886 }
|
|
|
887
|
|
|
888 return info;
|
|
|
889 }
|
|
|
890
|
|
|
891 /* Get information on the volume where name is held; set path pointer to
|
|
|
892 start of pathname in name (past UNC header\volume header if present). */
|
|
|
893 int
|
|
|
894 get_volume_info (const char * name, const char ** pPath)
|
|
|
895 {
|
|
|
896 char temp[MAX_PATH];
|
|
|
897 char *rootname = NULL; /* default to current volume */
|
|
|
898 volume_info_data * info;
|
|
|
899
|
|
|
900 if (name == NULL)
|
|
|
901 return FALSE;
|
|
|
902
|
|
|
903 /* find the root name of the volume if given */
|
|
|
904 if (isalpha (name[0]) && name[1] == ':')
|
|
|
905 {
|
|
|
906 rootname = temp;
|
|
|
907 temp[0] = *name++;
|
|
|
908 temp[1] = *name++;
|
|
|
909 temp[2] = '\\';
|
|
|
910 temp[3] = 0;
|
|
|
911 }
|
|
|
912 else if (IS_DIRECTORY_SEP (name[0]) && IS_DIRECTORY_SEP (name[1]))
|
|
|
913 {
|
|
|
914 char *str = temp;
|
|
|
915 int slashes = 4;
|
|
|
916 rootname = temp;
|
|
|
917 do
|
|
|
918 {
|
|
|
919 if (IS_DIRECTORY_SEP (*name) && --slashes == 0)
|
|
|
920 break;
|
|
|
921 *str++ = *name++;
|
|
|
922 }
|
|
|
923 while ( *name );
|
|
|
924
|
|
|
925 *str++ = '\\';
|
|
|
926 *str = 0;
|
|
|
927 }
|
|
|
928
|
|
|
929 if (pPath)
|
|
|
930 *pPath = name;
|
|
|
931
|
|
|
932 info = GetCachedVolumeInformation (rootname);
|
|
|
933 if (info != NULL)
|
|
|
934 {
|
|
|
935 /* Set global referenced by other functions. */
|
|
|
936 volume_info = *info;
|
|
|
937 return TRUE;
|
|
|
938 }
|
|
|
939 return FALSE;
|
|
|
940 }
|
|
|
941
|
|
|
942 /* Determine if volume is FAT format (ie. only supports short 8.3
|
|
|
943 names); also set path pointer to start of pathname in name. */
|
|
|
944 int
|
|
|
945 is_fat_volume (const char * name, const char ** pPath)
|
|
|
946 {
|
|
|
947 if (get_volume_info (name, pPath))
|
|
|
948 return (volume_info.maxcomp == 12);
|
|
|
949 return FALSE;
|
|
|
950 }
|
|
|
951
|
|
|
952 /* Map filename to a legal 8.3 name if necessary. */
|
|
|
953 const char *
|
|
|
954 map_win32_filename (const char * name, const char ** pPath)
|
|
|
955 {
|
|
|
956 static char shortname[MAX_PATH];
|
|
|
957 char * str = shortname;
|
|
|
958 char c;
|
|
|
959 const char * path;
|
|
|
960 const char * save_name = name;
|
|
|
961
|
|
|
962 if (is_fat_volume (name, &path)) /* truncate to 8.3 */
|
|
|
963 {
|
|
|
964 REGISTER int left = 8; /* maximum number of chars in part */
|
|
|
965 REGISTER int extn = 0; /* extension added? */
|
|
|
966 REGISTER int dots = 2; /* maximum number of dots allowed */
|
|
|
967
|
|
|
968 while (name < path)
|
|
|
969 *str++ = *name++; /* skip past UNC header */
|
|
|
970
|
|
|
971 while ((c = *name++))
|
|
|
972 {
|
|
|
973 switch ( c )
|
|
|
974 {
|
|
|
975 case '\\':
|
|
|
976 case '/':
|
|
|
977 *str++ = '\\';
|
|
|
978 extn = 0; /* reset extension flags */
|
|
|
979 dots = 2; /* max 2 dots */
|
|
|
980 left = 8; /* max length 8 for main part */
|
|
|
981 break;
|
|
|
982 case ':':
|
|
|
983 *str++ = ':';
|
|
|
984 extn = 0; /* reset extension flags */
|
|
|
985 dots = 2; /* max 2 dots */
|
|
|
986 left = 8; /* max length 8 for main part */
|
|
|
987 break;
|
|
|
988 case '.':
|
|
|
989 if ( dots )
|
|
|
990 {
|
|
|
991 /* Convert path components of the form .xxx to _xxx,
|
|
|
992 but leave . and .. as they are. This allows .emacs
|
|
|
993 to be read as _emacs, for example. */
|
|
|
994
|
|
|
995 if (! *name ||
|
|
|
996 *name == '.' ||
|
|
|
997 IS_DIRECTORY_SEP (*name))
|
|
|
998 {
|
|
|
999 *str++ = '.';
|
|
|
1000 dots--;
|
|
|
1001 }
|
|
|
1002 else
|
|
|
1003 {
|
|
|
1004 *str++ = '_';
|
|
|
1005 left--;
|
|
|
1006 dots = 0;
|
|
|
1007 }
|
|
|
1008 }
|
|
|
1009 else if ( !extn )
|
|
|
1010 {
|
|
|
1011 *str++ = '.';
|
|
|
1012 extn = 1; /* we've got an extension */
|
|
|
1013 left = 3; /* 3 chars in extension */
|
|
|
1014 }
|
|
|
1015 else
|
|
|
1016 {
|
|
|
1017 /* any embedded dots after the first are converted to _ */
|
|
|
1018 *str++ = '_';
|
|
|
1019 }
|
|
|
1020 break;
|
|
|
1021 case '~':
|
|
|
1022 case '#': /* don't lose these, they're important */
|
|
|
1023 if ( ! left )
|
|
|
1024 str[-1] = c; /* replace last character of part */
|
|
|
1025 /* FALLTHRU */
|
|
|
1026 default:
|
|
|
1027 if ( left )
|
|
|
1028 {
|
|
|
1029 *str++ = tolower (c); /* map to lower case (looks nicer) */
|
|
|
1030 left--;
|
|
|
1031 dots = 0; /* started a path component */
|
|
|
1032 }
|
|
|
1033 break;
|
|
|
1034 }
|
|
|
1035 }
|
|
|
1036 *str = '\0';
|
|
|
1037 }
|
|
|
1038 else
|
|
|
1039 {
|
|
|
1040 strcpy (shortname, name);
|
|
|
1041 unixtodos_filename (shortname);
|
|
|
1042 }
|
|
|
1043
|
|
|
1044 if (pPath)
|
|
|
1045 *pPath = shortname + (path - save_name);
|
|
|
1046
|
|
|
1047 return shortname;
|
|
|
1048 }
|
|
|
1049
|
|
|
1050
|
|
|
1051 /* Emulate the Unix directory procedures opendir, closedir,
|
|
|
1052 and readdir. We can't use the procedures supplied in sysdep.c,
|
|
|
1053 so we provide them here. */
|
|
|
1054
|
|
|
1055 struct direct dir_static; /* simulated directory contents */
|
|
|
1056 static HANDLE dir_find_handle = INVALID_HANDLE_VALUE;
|
|
|
1057 static int dir_is_fat;
|
|
|
1058 static char dir_pathname[MAXPATHLEN+1];
|
|
|
1059 static WIN32_FIND_DATA dir_find_data;
|
|
|
1060
|
|
|
1061 DIR *
|
|
|
1062 opendir (const char *filename)
|
|
|
1063 {
|
|
|
1064 DIR *dirp;
|
|
|
1065
|
|
|
1066 /* Opening is done by FindFirstFile. However, a read is inherent to
|
|
|
1067 this operation, so we defer the open until read time. */
|
|
|
1068
|
|
|
1069 if (!(dirp = xnew_and_zero(DIR)))
|
|
|
1070 return NULL;
|
|
|
1071 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
|
1072 return NULL;
|
|
|
1073
|
|
|
1074 dirp->dd_fd = 0;
|
|
|
1075 dirp->dd_loc = 0;
|
|
|
1076 dirp->dd_size = 0;
|
|
|
1077
|
|
|
1078 strncpy (dir_pathname, map_win32_filename (filename, NULL), MAXPATHLEN);
|
|
|
1079 dir_pathname[MAXPATHLEN] = '\0';
|
|
|
1080 dir_is_fat = is_fat_volume (filename, NULL);
|
|
|
1081
|
|
|
1082 return dirp;
|
|
|
1083 }
|
|
|
1084
|
|
|
1085 void
|
|
|
1086 closedir (DIR *dirp)
|
|
|
1087 {
|
|
|
1088 /* If we have a find-handle open, close it. */
|
|
|
1089 if (dir_find_handle != INVALID_HANDLE_VALUE)
|
|
|
1090 {
|
|
|
1091 FindClose (dir_find_handle);
|
|
|
1092 dir_find_handle = INVALID_HANDLE_VALUE;
|
|
|
1093 }
|
|
|
1094 xfree (dirp);
|
|
|
1095 }
|
|
|
1096
|
|
|
1097 struct direct *
|
|
|
1098 readdir (DIR *dirp)
|
|
|
1099 {
|
|
|
1100 /* If we aren't dir_finding, do a find-first, otherwise do a find-next. */
|
|
|
1101 if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
1102 {
|
|
|
1103 char filename[MAXNAMLEN + 3];
|
|
|
1104 int ln;
|
|
|
1105
|
|
|
1106 strcpy (filename, dir_pathname);
|
|
|
1107 ln = strlen (filename) - 1;
|
|
|
1108 if (!IS_DIRECTORY_SEP (filename[ln]))
|
|
|
1109 strcat (filename, "\\");
|
|
|
1110 strcat (filename, "*");
|
|
|
1111
|
|
|
1112 dir_find_handle = FindFirstFile (filename, &dir_find_data);
|
|
|
1113
|
|
|
1114 if (dir_find_handle == INVALID_HANDLE_VALUE)
|
|
|
1115 return NULL;
|
|
|
1116 }
|
|
|
1117 else
|
|
|
1118 {
|
|
|
1119 if (!FindNextFile (dir_find_handle, &dir_find_data))
|
|
|
1120 return NULL;
|
|
|
1121 }
|
|
|
1122
|
|
|
1123 /* Emacs never uses this value, so don't bother making it match
|
|
|
1124 value returned by stat(). */
|
|
|
1125 dir_static.d_ino = 1;
|
|
|
1126
|
|
|
1127 dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 +
|
|
|
1128 dir_static.d_namlen - dir_static.d_namlen % 4;
|
|
|
1129
|
|
|
1130 dir_static.d_namlen = strlen (dir_find_data.cFileName);
|
|
|
1131 strcpy (dir_static.d_name, dir_find_data.cFileName);
|
|
|
1132 if (dir_is_fat)
|
|
|
1133 _strlwr (dir_static.d_name);
|
|
|
1134 else if (!NILP (Vmswindows_downcase_file_names))
|
|
|
1135 {
|
|
|
1136 REGISTER char *p;
|
|
|
1137 for (p = dir_static.d_name; *p; p++)
|
|
|
1138 if (*p >= 'a' && *p <= 'z')
|
|
|
1139 break;
|
|
|
1140 if (!*p)
|
|
|
1141 _strlwr (dir_static.d_name);
|
|
|
1142 }
|
|
|
1143
|
|
|
1144 return &dir_static;
|
|
|
1145 }
|
|
|
1146
|
|
|
1147 #if 0
|
|
|
1148 /* #### Have to check if all that sad story about '95 is true - kkm */
|
|
|
1149 int
|
|
|
1150 sys_rename (const char * oldname, const char * newname)
|
|
|
1151 {
|
|
|
1152 char temp[MAX_PATH];
|
|
|
1153 DWORD attr;
|
|
|
1154
|
|
|
1155 /* MoveFile on Win95 doesn't correctly change the short file name
|
|
|
1156 alias in a number of circumstances (it is not easy to predict when
|
|
|
1157 just by looking at oldname and newname, unfortunately). In these
|
|
|
1158 cases, renaming through a temporary name avoids the problem.
|
|
|
1159
|
|
|
1160 A second problem on Win95 is that renaming through a temp name when
|
|
|
1161 newname is uppercase fails (the final long name ends up in
|
|
|
1162 lowercase, although the short alias might be uppercase) UNLESS the
|
|
|
1163 long temp name is not 8.3.
|
|
|
1164
|
|
|
1165 So, on Win95 we always rename through a temp name, and we make sure
|
|
|
1166 the temp name has a long extension to ensure correct renaming. */
|
|
|
1167
|
|
|
1168 strcpy (temp, map_win32_filename (oldname, NULL));
|
|
|
1169
|
|
|
1170 if (GetVersion () & 0x80000000)
|
|
|
1171 {
|
|
|
1172 char * p;
|
|
|
1173
|
|
|
1174 if (p = strrchr (temp, '\\'))
|
|
|
1175 p++;
|
|
|
1176 else
|
|
|
1177 p = temp;
|
|
|
1178 /* Force temp name to require a manufactured 8.3 alias - this
|
|
|
1179 seems to make the second rename work properly. */
|
|
|
1180 strcpy (p, "_rename_temp.XXXXXX");
|
|
|
1181 sys_mktemp (temp);
|
|
|
1182 if (rename (map_win32_filename (oldname, NULL), temp) < 0)
|
|
|
1183 return -1;
|
|
|
1184 }
|
|
|
1185
|
|
|
1186 /* Emulate Unix behavior - newname is deleted if it already exists
|
|
|
1187 (at least if it is a file; don't do this for directories).
|
|
|
1188 However, don't do this if we are just changing the case of the file
|
|
|
1189 name - we will end up deleting the file we are trying to rename! */
|
|
|
1190 newname = map_win32_filename (newname, NULL);
|
|
|
1191
|
|
|
1192 /* TODO: Use GetInformationByHandle (on NT) to ensure newname and temp
|
|
|
1193 do not refer to the same file, eg. through share aliases. */
|
|
|
1194 if (stricmp (newname, temp) != 0
|
|
|
1195 && (attr = GetFileAttributes (newname)) != -1
|
|
|
1196 && (attr & FILE_ATTRIBUTE_DIRECTORY) == 0)
|
|
|
1197 {
|
|
|
1198 _chmod (newname, 0666);
|
|
|
1199 _unlink (newname);
|
|
|
1200 }
|
|
|
1201
|
|
|
1202 return rename (temp, newname);
|
|
|
1203 }
|
|
|
1204 #endif /* 0 */
|
|
|
1205
|
|
|
1206 static FILETIME utc_base_ft;
|
|
|
1207 static long double utc_base;
|
|
|
1208 static int init = 0;
|
|
|
1209
|
|
|
1210 time_t
|
|
|
1211 convert_time (FILETIME ft)
|
|
|
1212 {
|
|
|
1213 long double ret;
|
|
|
1214
|
|
|
1215 if (!init)
|
|
|
1216 {
|
|
|
1217 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1218 SYSTEMTIME st;
|
|
|
1219
|
|
|
1220 st.wYear = 1970;
|
|
|
1221 st.wMonth = 1;
|
|
|
1222 st.wDay = 1;
|
|
|
1223 st.wHour = 0;
|
|
|
1224 st.wMinute = 0;
|
|
|
1225 st.wSecond = 0;
|
|
|
1226 st.wMilliseconds = 0;
|
|
|
1227
|
|
|
1228 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1229 utc_base = (long double) utc_base_ft.dwHighDateTime
|
|
|
1230 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime;
|
|
|
1231 init = 1;
|
|
|
1232 }
|
|
|
1233
|
|
|
1234 if (CompareFileTime (&ft, &utc_base_ft) < 0)
|
|
|
1235 return 0;
|
|
|
1236
|
|
|
1237 ret = (long double) ft.dwHighDateTime * 4096 * 1024 * 1024 + ft.dwLowDateTime;
|
|
|
1238 ret -= utc_base;
|
|
|
1239 return (time_t) (ret * 1e-7);
|
|
|
1240 }
|
|
|
1241
|
|
|
1242 #if 0
|
|
|
1243 /* in case we ever have need of this */
|
|
|
1244 void
|
|
|
1245 convert_from_time_t (time_t time, FILETIME * pft)
|
|
|
1246 {
|
|
|
1247 long double tmp;
|
|
|
1248
|
|
|
1249 if (!init)
|
|
|
1250 {
|
|
|
1251 /* Determine the delta between 1-Jan-1601 and 1-Jan-1970. */
|
|
|
1252 SYSTEMTIME st;
|
|
|
1253
|
|
|
1254 st.wYear = 1970;
|
|
|
1255 st.wMonth = 1;
|
|
|
1256 st.wDay = 1;
|
|
|
1257 st.wHour = 0;
|
|
|
1258 st.wMinute = 0;
|
|
|
1259 st.wSecond = 0;
|
|
|
1260 st.wMilliseconds = 0;
|
|
|
1261
|
|
|
1262 SystemTimeToFileTime (&st, &utc_base_ft);
|
|
|
1263 utc_base = (long double) utc_base_ft.dwHighDateTime
|
|
|
1264 * 4096 * 1024 * 1024 + utc_base_ft.dwLowDateTime;
|
|
|
1265 init = 1;
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 /* time in 100ns units since 1-Jan-1601 */
|
|
|
1269 tmp = (long double) time * 1e7 + utc_base;
|
|
|
1270 pft->dwHighDateTime = (DWORD) (tmp / (4096.0 * 1024 * 1024));
|
|
|
1271 pft->dwLowDateTime = (DWORD) (tmp - pft->dwHighDateTime);
|
|
|
1272 }
|
|
|
1273 #endif
|
|
|
1274
|
|
|
1275 #if 0
|
|
|
1276 /* No reason to keep this; faking inode values either by hashing or even
|
|
|
1277 using the file index from GetInformationByHandle, is not perfect and
|
|
|
1278 so by default Emacs doesn't use the inode values on Windows.
|
|
|
1279 Instead, we now determine file-truename correctly (except for
|
|
|
1280 possible drive aliasing etc). */
|
|
|
1281
|
|
|
1282 /* Modified version of "PJW" algorithm (see the "Dragon" compiler book). */
|
|
|
1283 static unsigned
|
|
|
1284 hashval (const unsigned char * str)
|
|
|
1285 {
|
|
|
1286 unsigned h = 0;
|
|
|
1287 while (*str)
|
|
|
1288 {
|
|
|
1289 h = (h << 4) + *str++;
|
|
|
1290 h ^= (h >> 28);
|
|
|
1291 }
|
|
|
1292 return h;
|
|
|
1293 }
|
|
|
1294
|
|
|
1295 /* Return the hash value of the canonical pathname, excluding the
|
|
|
1296 drive/UNC header, to get a hopefully unique inode number. */
|
|
|
1297 static DWORD
|
|
|
1298 generate_inode_val (const char * name)
|
|
|
1299 {
|
|
|
1300 char fullname[ MAX_PATH ];
|
|
|
1301 char * p;
|
|
|
1302 unsigned hash;
|
|
|
1303
|
|
|
1304 /* Get the truly canonical filename, if it exists. (Note: this
|
|
|
1305 doesn't resolve aliasing due to subst commands, or recognize hard
|
|
|
1306 links. */
|
|
|
1307 if (!win32_get_long_filename ((char *)name, fullname, MAX_PATH))
|
|
|
1308 abort ();
|
|
|
1309
|
|
|
1310 parse_root (fullname, &p);
|
|
|
1311 /* Normal Win32 filesystems are still case insensitive. */
|
|
|
1312 _strlwr (p);
|
|
|
1313 return hashval (p);
|
|
|
1314 }
|
|
|
1315
|
|
|
1316 #endif
|
|
|
1317
|
|
|
1318 /* MSVC stat function can't cope with UNC names and has other bugs, so
|
|
|
1319 replace it with our own. This also allows us to calculate consistent
|
|
|
1320 inode values without hacks in the main Emacs code. */
|
|
|
1321 int
|
|
|
1322 stat (const char * path, struct stat * buf)
|
|
|
1323 {
|
|
|
1324 char * name;
|
|
|
1325 WIN32_FIND_DATA wfd;
|
|
|
1326 HANDLE fh;
|
|
|
1327 DWORD fake_inode;
|
|
|
1328 int permission;
|
|
|
1329 int len;
|
|
|
1330 int rootdir = FALSE;
|
|
|
1331
|
|
|
1332 if (path == NULL || buf == NULL)
|
|
|
1333 {
|
|
|
1334 errno = EFAULT;
|
|
|
1335 return -1;
|
|
|
1336 }
|
|
|
1337
|
|
|
1338 name = (char *) map_win32_filename (path, &path);
|
|
|
1339 /* must be valid filename, no wild cards */
|
|
|
1340 if (strchr (name, '*') || strchr (name, '?'))
|
|
|
1341 {
|
|
|
1342 errno = ENOENT;
|
|
|
1343 return -1;
|
|
|
1344 }
|
|
|
1345
|
|
|
1346 /* Remove trailing directory separator, unless name is the root
|
|
|
1347 directory of a drive or UNC volume in which case ensure there
|
|
|
1348 is a trailing separator. */
|
|
|
1349 len = strlen (name);
|
|
|
1350 rootdir = (path >= name + len - 1
|
|
|
1351 && (IS_DIRECTORY_SEP (*path) || *path == 0));
|
|
|
1352 name = strcpy (alloca (len + 2), name);
|
|
|
1353
|
|
|
1354 if (rootdir)
|
|
|
1355 {
|
|
|
1356 if (!IS_DIRECTORY_SEP (name[len-1]))
|
|
|
1357 strcat (name, "\\");
|
|
|
1358 if (GetDriveType (name) < 2)
|
|
|
1359 {
|
|
|
1360 errno = ENOENT;
|
|
|
1361 return -1;
|
|
|
1362 }
|
|
|
1363 memset (&wfd, 0, sizeof (wfd));
|
|
|
1364 wfd.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
|
|
|
1365 wfd.ftCreationTime = utc_base_ft;
|
|
|
1366 wfd.ftLastAccessTime = utc_base_ft;
|
|
|
1367 wfd.ftLastWriteTime = utc_base_ft;
|
|
|
1368 strcpy (wfd.cFileName, name);
|
|
|
1369 }
|
|
|
1370 else
|
|
|
1371 {
|
|
|
1372 if (IS_DIRECTORY_SEP (name[len-1]))
|
|
|
1373 name[len - 1] = 0;
|
|
|
1374
|
|
|
1375 /* (This is hacky, but helps when doing file completions on
|
|
|
1376 network drives.) Optimize by using information available from
|
|
|
1377 active readdir if possible. */
|
|
|
1378 if (dir_find_handle != INVALID_HANDLE_VALUE &&
|
|
|
1379 (len = strlen (dir_pathname)),
|
|
|
1380 strnicmp (name, dir_pathname, len) == 0 &&
|
|
|
1381 IS_DIRECTORY_SEP (name[len]) &&
|
|
|
1382 stricmp (name + len + 1, dir_static.d_name) == 0)
|
|
|
1383 {
|
|
|
1384 /* This was the last entry returned by readdir. */
|
|
|
1385 wfd = dir_find_data;
|
|
|
1386 }
|
|
|
1387 else
|
|
|
1388 {
|
|
|
1389 fh = FindFirstFile (name, &wfd);
|
|
|
1390 if (fh == INVALID_HANDLE_VALUE)
|
|
|
1391 {
|
|
|
1392 errno = ENOENT;
|
|
|
1393 return -1;
|
|
|
1394 }
|
|
|
1395 FindClose (fh);
|
|
|
1396 }
|
|
|
1397 }
|
|
|
1398
|
|
|
1399 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1400 {
|
|
|
1401 buf->st_mode = _S_IFDIR;
|
|
|
1402 buf->st_nlink = 2; /* doesn't really matter */
|
|
|
1403 fake_inode = 0; /* this doesn't either I think */
|
|
|
1404 }
|
|
|
1405 else if (!NILP (Vmswindows_get_true_file_attributes))
|
|
|
1406 {
|
|
|
1407 /* This is more accurate in terms of getting the correct number
|
|
|
1408 of links, but is quite slow (it is noticeable when Emacs is
|
|
|
1409 making a list of file name completions). */
|
|
|
1410 BY_HANDLE_FILE_INFORMATION info;
|
|
|
1411
|
|
|
1412 /* No access rights required to get info. */
|
|
|
1413 fh = CreateFile (name, 0, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL,
|
|
|
1414 OPEN_EXISTING, 0, NULL);
|
|
|
1415
|
|
|
1416 if (GetFileInformationByHandle (fh, &info))
|
|
|
1417 {
|
|
|
1418 switch (GetFileType (fh))
|
|
|
1419 {
|
|
|
1420 case FILE_TYPE_DISK:
|
|
|
1421 buf->st_mode = _S_IFREG;
|
|
|
1422 break;
|
|
|
1423 case FILE_TYPE_PIPE:
|
|
|
1424 buf->st_mode = _S_IFIFO;
|
|
|
1425 break;
|
|
|
1426 case FILE_TYPE_CHAR:
|
|
|
1427 case FILE_TYPE_UNKNOWN:
|
|
|
1428 default:
|
|
|
1429 buf->st_mode = _S_IFCHR;
|
|
|
1430 }
|
|
|
1431 buf->st_nlink = (short) info.nNumberOfLinks;
|
|
|
1432 /* Might as well use file index to fake inode values, but this
|
|
|
1433 is not guaranteed to be unique unless we keep a handle open
|
|
|
1434 all the time (even then there are situations where it is
|
|
|
1435 not unique). Reputedly, there are at most 48 bits of info
|
|
|
1436 (on NTFS, presumably less on FAT). */
|
|
|
1437 fake_inode = info.nFileIndexLow ^ info.nFileIndexHigh;
|
|
|
1438 CloseHandle (fh);
|
|
|
1439 }
|
|
|
1440 else
|
|
|
1441 {
|
|
|
1442 errno = EACCES;
|
|
|
1443 return -1;
|
|
|
1444 }
|
|
|
1445 }
|
|
|
1446 else
|
|
|
1447 {
|
|
|
1448 /* Don't bother to make this information more accurate. */
|
|
|
1449 buf->st_mode = _S_IFREG;
|
|
|
1450 buf->st_nlink = 1;
|
|
|
1451 fake_inode = 0;
|
|
|
1452 }
|
|
|
1453
|
|
|
1454 #if 0
|
|
|
1455 /* Not sure if there is any point in this. */
|
|
|
1456 if (!NILP (Vwin32_generate_fake_inodes))
|
|
|
1457 fake_inode = generate_inode_val (name);
|
|
|
1458 else if (fake_inode == 0)
|
|
|
1459 {
|
|
|
1460 /* For want of something better, try to make everything unique. */
|
|
|
1461 static DWORD gen_num = 0;
|
|
|
1462 fake_inode = ++gen_num;
|
|
|
1463 }
|
|
|
1464 #endif
|
|
|
1465
|
|
|
1466 /* #### MSVC defines _ino_t to be short; other libc's might not. */
|
|
|
1467 buf->st_ino = (unsigned short) (fake_inode ^ (fake_inode >> 16));
|
|
|
1468
|
|
|
1469 /* consider files to belong to current user */
|
|
|
1470 buf->st_uid = the_passwd.pw_uid;
|
|
|
1471 buf->st_gid = the_passwd.pw_gid;
|
|
|
1472
|
|
|
1473 /* volume_info is set indirectly by map_win32_filename */
|
|
|
1474 buf->st_dev = volume_info.serialnum;
|
|
|
1475 buf->st_rdev = volume_info.serialnum;
|
|
|
1476
|
|
|
1477
|
|
|
1478 buf->st_size = wfd.nFileSizeLow;
|
|
|
1479
|
|
|
1480 /* Convert timestamps to Unix format. */
|
|
|
1481 buf->st_mtime = convert_time (wfd.ftLastWriteTime);
|
|
|
1482 buf->st_atime = convert_time (wfd.ftLastAccessTime);
|
|
|
1483 if (buf->st_atime == 0) buf->st_atime = buf->st_mtime;
|
|
|
1484 buf->st_ctime = convert_time (wfd.ftCreationTime);
|
|
|
1485 if (buf->st_ctime == 0) buf->st_ctime = buf->st_mtime;
|
|
|
1486
|
|
|
1487 /* determine rwx permissions */
|
|
|
1488 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_READONLY)
|
|
|
1489 permission = _S_IREAD;
|
|
|
1490 else
|
|
|
1491 permission = _S_IREAD | _S_IWRITE;
|
|
|
1492
|
|
|
1493 if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
|
|
|
1494 permission |= _S_IEXEC;
|
|
|
1495 else
|
|
|
1496 {
|
|
|
1497 char * p = strrchr (name, '.');
|
|
|
1498 if (p != NULL &&
|
|
|
1499 (stricmp (p, ".exe") == 0 ||
|
|
|
1500 stricmp (p, ".com") == 0 ||
|
|
|
1501 stricmp (p, ".bat") == 0 ||
|
|
|
1502 stricmp (p, ".cmd") == 0))
|
|
|
1503 permission |= _S_IEXEC;
|
|
|
1504 }
|
|
|
1505
|
|
|
1506 buf->st_mode |= permission | (permission >> 3) | (permission >> 6);
|
|
|
1507
|
|
|
1508 return 0;
|
|
|
1509 }
|
|
|
1510
|
|
|
1511 /* From callproc.c */
|
|
|
1512 extern Lisp_Object Vbinary_process_input;
|
|
|
1513 extern Lisp_Object Vbinary_process_output;
|
|
|
1514
|
|
|
1515 /* Unix pipe() has only one arg */
|
|
|
1516 int
|
|
|
1517 sys_pipe (int * phandles)
|
|
|
1518 {
|
|
|
1519 int rc;
|
|
|
1520 unsigned flags;
|
|
|
1521
|
|
|
1522 /* make pipe handles non-inheritable; when we spawn a child, we
|
|
|
1523 replace the relevant handle with an inheritable one. Also put
|
|
|
1524 pipes into binary mode; we will do text mode translation ourselves
|
|
|
1525 if required. */
|
|
|
1526 rc = _pipe (phandles, 0, _O_NOINHERIT | _O_BINARY);
|
|
|
1527
|
|
|
1528 if (rc == 0)
|
|
|
1529 {
|
|
|
1530 flags = FILE_PIPE | FILE_READ;
|
|
|
1531 if (!NILP (Vbinary_process_output))
|
|
|
1532 flags |= FILE_BINARY;
|
|
|
1533 fd_info[phandles[0]].flags = flags;
|
|
|
1534
|
|
|
1535 flags = FILE_PIPE | FILE_WRITE;
|
|
|
1536 if (!NILP (Vbinary_process_input))
|
|
|
1537 flags |= FILE_BINARY;
|
|
|
1538 fd_info[phandles[1]].flags = flags;
|
|
|
1539 }
|
|
|
1540
|
|
|
1541 return rc;
|
|
|
1542 }
|
|
|
1543
|
|
|
1544 void
|
|
|
1545 term_ntproc (int unused)
|
|
|
1546 {
|
|
|
1547 }
|
|
|
1548
|
|
|
1549 void
|
|
|
1550 init_ntproc ()
|
|
|
1551 {
|
|
|
1552 /* Initial preparation for subprocess support: replace our standard
|
|
|
1553 handles with non-inheritable versions. */
|
|
|
1554 {
|
|
|
1555 HANDLE parent;
|
|
|
1556 HANDLE stdin_save = INVALID_HANDLE_VALUE;
|
|
|
1557 HANDLE stdout_save = INVALID_HANDLE_VALUE;
|
|
|
1558 HANDLE stderr_save = INVALID_HANDLE_VALUE;
|
|
|
1559
|
|
|
1560 parent = GetCurrentProcess ();
|
|
|
1561
|
|
|
1562 /* ignore errors when duplicating and closing; typically the
|
|
|
1563 handles will be invalid when running as a gui program. */
|
|
|
1564 DuplicateHandle (parent,
|
|
|
1565 GetStdHandle (STD_INPUT_HANDLE),
|
|
|
1566 parent,
|
|
|
1567 &stdin_save,
|
|
|
1568 0,
|
|
|
1569 FALSE,
|
|
|
1570 DUPLICATE_SAME_ACCESS);
|
|
|
1571
|
|
|
1572 DuplicateHandle (parent,
|
|
|
1573 GetStdHandle (STD_OUTPUT_HANDLE),
|
|
|
1574 parent,
|
|
|
1575 &stdout_save,
|
|
|
1576 0,
|
|
|
1577 FALSE,
|
|
|
1578 DUPLICATE_SAME_ACCESS);
|
|
|
1579
|
|
|
1580 DuplicateHandle (parent,
|
|
|
1581 GetStdHandle (STD_ERROR_HANDLE),
|
|
|
1582 parent,
|
|
|
1583 &stderr_save,
|
|
|
1584 0,
|
|
|
1585 FALSE,
|
|
|
1586 DUPLICATE_SAME_ACCESS);
|
|
|
1587
|
|
|
1588 fclose (stdin);
|
|
|
1589 fclose (stdout);
|
|
|
1590 fclose (stderr);
|
|
|
1591
|
|
|
1592 if (stdin_save != INVALID_HANDLE_VALUE)
|
|
|
1593 _open_osfhandle ((long) stdin_save, O_TEXT);
|
|
|
1594 else
|
|
|
1595 _open ("nul", O_TEXT | O_NOINHERIT | O_RDONLY);
|
|
|
1596 _fdopen (0, "r");
|
|
|
1597
|
|
|
1598 if (stdout_save != INVALID_HANDLE_VALUE)
|
|
|
1599 _open_osfhandle ((long) stdout_save, O_TEXT);
|
|
|
1600 else
|
|
|
1601 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
|
1602 _fdopen (1, "w");
|
|
|
1603
|
|
|
1604 if (stderr_save != INVALID_HANDLE_VALUE)
|
|
|
1605 _open_osfhandle ((long) stderr_save, O_TEXT);
|
|
|
1606 else
|
|
|
1607 _open ("nul", O_TEXT | O_NOINHERIT | O_WRONLY);
|
|
|
1608 _fdopen (2, "w");
|
|
|
1609 }
|
|
|
1610
|
|
|
1611 /* unfortunately, atexit depends on implementation of malloc */
|
|
|
1612 /* atexit (term_ntproc); */
|
|
|
1613 signal (SIGABRT, term_ntproc);
|
|
|
1614
|
|
|
1615 /* determine which drives are fixed, for GetCachedVolumeInformation */
|
|
|
1616 {
|
|
|
1617 /* GetDriveType must have trailing backslash. */
|
|
|
1618 char drive[] = "A:\\";
|
|
|
1619
|
|
|
1620 /* Loop over all possible drive letters */
|
|
|
1621 while ( *drive <= 'Z' )
|
|
|
1622 {
|
|
|
1623 /* Record if this drive letter refers to a fixed drive. */
|
|
|
1624 fixed_drives[ DRIVE_INDEX (*drive) ] =
|
|
|
1625 (GetDriveType (drive) == DRIVE_FIXED);
|
|
|
1626
|
|
|
1627 (*drive)++;
|
|
|
1628 }
|
|
|
1629 }
|
|
|
1630 }
|
|
|
1631 #ifndef HAVE_TTY
|
|
|
1632 Lisp_Object
|
|
|
1633 tty_semi_canonicalize_console_connection (Lisp_Object connection,
|
|
|
1634 Error_behavior errb)
|
|
|
1635 {
|
|
|
1636 return Vstdio_str;
|
|
|
1637 }
|
|
|
1638
|
|
|
1639 Lisp_Object
|
|
|
1640 tty_canonicalize_console_connection (Lisp_Object connection,
|
|
|
1641 Error_behavior errb)
|
|
|
1642 {
|
|
|
1643 return Vstdio_str;
|
|
|
1644 }
|
|
|
1645
|
|
|
1646 Lisp_Object
|
|
|
1647 tty_semi_canonicalize_device_connection (Lisp_Object connection,
|
|
|
1648 Error_behavior errb)
|
|
|
1649 {
|
|
|
1650 return Vstdio_str;
|
|
|
1651 }
|
|
|
1652
|
|
|
1653 Lisp_Object
|
|
|
1654 tty_canonicalize_device_connection (Lisp_Object connection,
|
|
|
1655 Error_behavior errb)
|
|
|
1656 {
|
|
|
1657 return Vstdio_str;
|
|
|
1658 }
|
|
|
1659 #endif
|
|
|
1660
|
|
|
1661 /*--------------------------------------------------------------------*/
|
|
|
1662 /* Signal support */
|
|
|
1663 /*--------------------------------------------------------------------*/
|
|
|
1664
|
|
|
1665 /* We need MS-defined signal and raise here */
|
|
|
1666 #undef signal
|
|
|
1667 #undef raise
|
|
|
1668
|
|
|
1669 #define sigmask(nsig) (1U << nsig)
|
|
|
1670
|
|
|
1671 /* We can support as many signals as fit into word */
|
|
|
1672 #define SIG_MAX 32
|
|
|
1673
|
|
|
1674 /* Signal handlers. Initial value = 0 = SIG_DFL */
|
|
|
1675 static void (__cdecl *signal_handlers[SIG_MAX])(int) = {0};
|
|
|
1676
|
|
|
1677 /* Signal block mask: bit set to 1 means blocked */
|
|
|
1678 unsigned signal_block_mask = 0;
|
|
|
1679
|
|
|
1680 /* Signal pending mask: bit set to 1 means sig is pending */
|
|
|
1681 unsigned signal_pending_mask = 0;
|
|
|
1682
|
|
|
1683 msw_sighandler msw_sigset (int nsig, msw_sighandler handler)
|
|
|
1684 {
|
|
|
1685 /* We delegate some signals to the system function */
|
|
|
1686 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT)
|
|
|
1687 return signal (nsig, handler);
|
|
|
1688
|
|
|
1689 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1690 {
|
|
|
1691 errno = EINVAL;
|
|
|
1692 return NULL;
|
|
|
1693 }
|
|
|
1694
|
|
|
1695 /* Store handler ptr */
|
|
|
1696 {
|
|
|
1697 msw_sighandler old_handler = signal_handlers[nsig];
|
|
|
1698 signal_handlers[nsig] = handler;
|
|
|
1699 return old_handler;
|
|
|
1700 }
|
|
|
1701 }
|
|
|
1702
|
|
|
1703 int msw_sighold (int nsig)
|
|
|
1704 {
|
|
|
1705 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1706 return errno = EINVAL;
|
|
|
1707
|
|
|
1708 signal_block_mask |= sigmask(nsig);
|
|
|
1709 return 0;
|
|
|
1710 }
|
|
|
1711
|
|
|
1712 int msw_sigrelse (int nsig)
|
|
|
1713 {
|
|
|
1714 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1715 return errno = EINVAL;
|
|
|
1716
|
|
|
1717 signal_block_mask &= ~sigmask(nsig);
|
|
|
1718
|
|
|
1719 if (signal_pending_mask & sigmask(nsig))
|
|
|
1720 msw_raise (nsig);
|
|
|
1721
|
|
|
1722 return 0;
|
|
|
1723 }
|
|
|
1724
|
|
|
1725 int msw_sigpause (int nsig)
|
|
|
1726 {
|
|
|
1727 /* This is currently not called, because the only
|
|
|
1728 call to sigpause inside XEmacs is with SIGCHLD
|
|
|
1729 parameter. Just in case, we put an assert here,
|
|
|
1730 so anyone who will add a call to sigpause will
|
|
|
1731 be surprised (or surprise someone else...) */
|
|
|
1732 assert (0);
|
|
|
1733 return 0;
|
|
|
1734 }
|
|
|
1735
|
|
|
1736 int msw_raise (int nsig)
|
|
|
1737 {
|
|
|
1738 /* We delegate some raises to the system routine */
|
|
|
1739 if (nsig == SIGFPE || nsig == SIGABRT || nsig == SIGINT)
|
|
|
1740 return raise (nsig);
|
|
|
1741
|
|
|
1742 if (nsig < 0 || nsig > SIG_MAX)
|
|
|
1743 return errno = EINVAL;
|
|
|
1744
|
|
|
1745 /* If the signal is blocked, remember to issue later */
|
|
|
1746 if (signal_block_mask & sigmask(nsig))
|
|
|
1747 {
|
|
|
1748 signal_pending_mask |= sigmask(nsig);
|
|
|
1749 return 0;
|
|
|
1750 }
|
|
|
1751
|
|
|
1752 if (signal_handlers[nsig] == SIG_IGN)
|
|
|
1753 return 0;
|
|
|
1754
|
|
|
1755 if (signal_handlers[nsig] != SIG_DFL)
|
|
|
1756 {
|
|
|
1757 (*signal_handlers[nsig])(nsig);
|
|
|
1758 return 0;
|
|
|
1759 }
|
|
|
1760
|
|
|
1761 /* Default signal actions */
|
|
|
1762 if (nsig == SIGALRM || nsig == SIGPROF)
|
|
|
1763 exit (3);
|
|
|
1764
|
|
|
1765 /* Other signals are ignored by default */
|
|
|
1766 return 0;
|
|
|
1767 }
|
|
|
1768
|
|
|
1769 /*--------------------------------------------------------------------*/
|
|
|
1770 /* Async timers */
|
|
|
1771 /*--------------------------------------------------------------------*/
|
|
|
1772
|
|
|
1773 /* We emulate two timers, one for SIGALRM, another for SIGPROF.
|
|
|
1774
|
|
|
1775 itimerproc() function has an implementation limitation: it does
|
|
|
1776 not allow to set *both* interval and period. If an attempt is
|
|
|
1777 made to set both, and then they are unequal, the function
|
|
|
1778 asserts.
|
|
|
1779
|
|
|
1780 Minimum timer resolution on Win32 systems varies, and is greater
|
|
|
1781 than or equal than 1 ms. The resolution is always wrapped not to
|
|
|
1782 attempt to get below the system defined limit.
|
|
|
1783 */
|
|
|
1784
|
|
|
1785 /* Timer precision, denominator of one fraction: for 100 ms
|
|
|
1786 interval, request 10 ms precision
|
|
|
1787 */
|
|
|
1788 const int timer_prec = 10;
|
|
|
1789
|
|
|
1790 /* Last itimervals, as set by calls to setitimer */
|
|
|
1791 static struct itimerval it_alarm;
|
|
|
1792 static struct itimerval it_prof;
|
|
|
1793
|
|
|
1794 /* Timer IDs as returned by MM */
|
|
|
1795 MMRESULT tid_alarm = 0;
|
|
|
1796 MMRESULT tid_prof = 0;
|
|
|
1797
|
|
|
1798 static void CALLBACK timer_proc (UINT uID, UINT uMsg, DWORD dwUser,
|
|
|
1799 DWORD dw1, DWORD dw2)
|
|
|
1800 {
|
|
|
1801 /* Just raise a signal indicated by dwUser parameter */
|
|
|
1802 msw_raise (dwUser);
|
|
|
1803 }
|
|
|
1804
|
|
|
1805 /* Divide time in ms specified by IT by DENOM. Return 1 ms
|
|
|
1806 if division results in zero */
|
|
|
1807 static UINT period (const struct itimerval* it, UINT denom)
|
|
|
1808 {
|
|
|
1809 static TIMECAPS time_caps;
|
|
|
1810
|
|
|
1811 UINT res;
|
|
|
1812 const struct timeval* tv =
|
|
|
1813 (it->it_value.tv_sec == 0 && it->it_value.tv_usec == 0)
|
|
|
1814 ? &it->it_interval : &it->it_value;
|
|
|
1815
|
|
|
1816 /* Zero means stop timer */
|
|
|
1817 if (tv->tv_sec == 0 && tv->tv_usec == 0)
|
|
|
1818 return 0;
|
|
|
1819
|
|
|
1820 /* Convert to ms and divide by denom */
|
|
|
1821 res = (tv->tv_sec * 1000 + (tv->tv_usec + 500) / 1000) / denom;
|
|
|
1822
|
|
|
1823 /* Converge to minimum timer resolution */
|
|
|
1824 if (time_caps.wPeriodMin == 0)
|
|
|
1825 timeGetDevCaps (&time_caps, sizeof(time_caps));
|
|
|
1826
|
|
|
1827 if (res < time_caps.wPeriodMin)
|
|
|
1828 res = time_caps.wPeriodMin;
|
|
|
1829
|
|
|
1830 return res;
|
|
|
1831 }
|
|
|
1832
|
|
|
1833 static int setitimer_helper (const struct itimerval* itnew,
|
|
|
1834 struct itimerval* itold, struct itimerval* itcurrent,
|
|
|
1835 MMRESULT* tid, DWORD sigkind)
|
|
|
1836 {
|
|
|
1837 UINT delay, resolution, event_type;
|
|
|
1838
|
|
|
1839 /* First stop the old timer */
|
|
|
1840 if (*tid)
|
|
|
1841 {
|
|
|
1842 timeKillEvent (*tid);
|
|
|
1843 timeEndPeriod (period (itcurrent, timer_prec));
|
|
|
1844 *tid = 0;
|
|
|
1845 }
|
|
|
1846
|
|
|
1847 /* Return old itimerval if requested */
|
|
|
1848 if (itold)
|
|
|
1849 *itold = *itcurrent;
|
|
|
1850
|
|
|
1851 *itcurrent = *itnew;
|
|
|
1852
|
|
|
1853 /* Determine if to start new timer */
|
|
|
1854 delay = period (itnew, 1);
|
|
|
1855 if (delay)
|
|
|
1856 {
|
|
|
1857 resolution = period (itnew, timer_prec);
|
|
|
1858 event_type = (itnew->it_value.tv_sec == 0 && itnew->it_value.tv_usec == 0)
|
|
|
1859 ? TIME_ONESHOT : TIME_PERIODIC;
|
|
|
1860 timeBeginPeriod (resolution);
|
|
|
1861 *tid = timeSetEvent (delay, resolution, timer_proc, sigkind, event_type);
|
|
|
1862 }
|
|
|
1863
|
|
|
1864 return !delay || *tid;
|
|
|
1865 }
|
|
|
1866
|
|
|
1867 int setitimer (int kind, const struct itimerval* itnew,
|
|
|
1868 struct itimerval* itold)
|
|
|
1869 {
|
|
|
1870 /* In this version, both interval and value are allowed
|
|
|
1871 only if they are equal. */
|
|
|
1872 assert ((itnew->it_value.tv_sec == 0 && itnew->it_value.tv_usec == 0)
|
|
|
1873 || (itnew->it_interval.tv_sec == 0 && itnew->it_interval.tv_usec == 0)
|
|
|
1874 || (itnew->it_value.tv_sec == itnew->it_interval.tv_sec &&
|
|
|
1875 itnew->it_value.tv_usec == itnew->it_interval.tv_usec));
|
|
|
1876
|
|
|
1877 if (kind == ITIMER_REAL)
|
|
|
1878 return setitimer_helper (itnew, itold, &it_alarm, &tid_alarm, SIGALRM);
|
|
|
1879 else if (kind == ITIMER_PROF)
|
|
|
1880 return setitimer_helper (itnew, itold, &it_prof, &tid_prof, SIGPROF);
|
|
|
1881 else
|
|
|
1882 return errno = EINVAL;
|
|
|
1883 }
|
|
|
1884
|
|
|
1885 int
|
|
|
1886 open_input_file (file_data *p_file, CONST char *filename)
|
|
|
1887 {
|
|
|
1888 HANDLE file;
|
|
|
1889 HANDLE file_mapping;
|
|
|
1890 void *file_base;
|
|
|
1891 DWORD size, upper_size;
|
|
|
1892
|
|
|
1893 file = CreateFile (filename, GENERIC_READ, FILE_SHARE_READ, NULL,
|
|
|
1894 OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
|
|
|
1895 if (file == INVALID_HANDLE_VALUE)
|
|
|
1896 return FALSE;
|
|
|
1897
|
|
|
1898 size = GetFileSize (file, &upper_size);
|
|
|
1899 file_mapping = CreateFileMapping (file, NULL, PAGE_READONLY,
|
|
|
1900 0, size, NULL);
|
|
|
1901 if (!file_mapping)
|
|
|
1902 return FALSE;
|
|
|
1903
|
|
|
1904 file_base = MapViewOfFile (file_mapping, FILE_MAP_READ, 0, 0, size);
|
|
|
1905 if (file_base == 0)
|
|
|
1906 return FALSE;
|
|
|
1907
|
|
|
1908 p_file->name = (char*)filename;
|
|
|
1909 p_file->size = size;
|
|
|
1910 p_file->file = file;
|
|
|
1911 p_file->file_mapping = file_mapping;
|
|
|
1912 p_file->file_base = file_base;
|
|
|
1913
|
|
|
1914 return TRUE;
|
|
|
1915 }
|
|
|
1916
|
|
|
1917 /* Close the system structures associated with the given file. */
|
|
|
1918 void
|
|
|
1919 close_file_data (file_data *p_file)
|
|
|
1920 {
|
|
|
1921 UnmapViewOfFile (p_file->file_base);
|
|
|
1922 CloseHandle (p_file->file_mapping);
|
|
|
1923 CloseHandle (p_file->file);
|
|
|
1924 }
|
|
|
1925
|
|
|
1926 /* end of nt.c */
|
