Mercurial > octave-nkf
annotate src/syscalls.cc @ 14393:ba4d6343524b stable release-3-6-1
Version 3.6.1 released.
* configure.ac (AC_INIT): Version is now 3.6.1.
(OCTAVE_RELEASE_DATE): Release date is now 2012-02-22.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 22 Feb 2012 14:39:41 -0500 |
| parents | 2ced2f59f523 |
| children | 97883071e8e4 |
| rev | line source |
|---|---|
| 2075 | 1 /* |
| 2 | |
|
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3 Copyright (C) 1996-2012 John W. Eaton |
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4 Copyright (C) 2010 VZLU Prague |
| 2075 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 2075 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 2075 | 21 |
| 22 */ | |
| 23 | |
| 24 // Thomas Baier <baier@ci.tuwien.ac.at> added the original versions of | |
| 25 // the following functions: | |
| 26 // | |
| 27 // mkfifo unlink waitpid | |
| 28 | |
| 29 #ifdef HAVE_CONFIG_H | |
| 30 #include <config.h> | |
| 31 #endif | |
| 32 | |
| 33 #include <cstdio> | |
| 2669 | 34 #include <cstring> |
| 2075 | 35 |
| 36 #include <sys/types.h> | |
| 37 #include <unistd.h> | |
| 38 | |
| 39 #include <fcntl.h> | |
| 40 | |
| 2926 | 41 #include "file-ops.h" |
| 42 #include "file-stat.h" | |
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43 #include "oct-env.h" |
| 2937 | 44 #include "oct-syscalls.h" |
| 5547 | 45 #include "oct-uname.h" |
| 2926 | 46 |
| 2075 | 47 #include "defun.h" |
| 48 #include "error.h" | |
| 2078 | 49 #include "gripes.h" |
| 2075 | 50 #include "lo-utils.h" |
| 51 #include "oct-map.h" | |
| 52 #include "oct-obj.h" | |
| 53 #include "oct-stdstrm.h" | |
| 54 #include "oct-stream.h" | |
| 55 #include "sysdep.h" | |
| 56 #include "utils.h" | |
| 2366 | 57 #include "variables.h" |
| 6321 | 58 #include "input.h" |
| 2075 | 59 |
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60 static octave_scalar_map |
| 8549 | 61 mk_stat_map (const base_file_stat& fs) |
| 2075 | 62 { |
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63 octave_scalar_map m; |
| 2075 | 64 |
| 4675 | 65 m.assign ("dev", static_cast<double> (fs.dev ())); |
| 66 m.assign ("ino", fs.ino ()); | |
| 5476 | 67 m.assign ("mode", fs.mode ()); |
| 4675 | 68 m.assign ("modestr", fs.mode_as_string ()); |
| 69 m.assign ("nlink", fs.nlink ()); | |
| 70 m.assign ("uid", fs.uid ()); | |
| 71 m.assign ("gid", fs.gid ()); | |
| 3887 | 72 #if defined (HAVE_STRUCT_STAT_ST_RDEV) |
| 4675 | 73 m.assign ("rdev", static_cast<double> (fs.rdev ())); |
| 2075 | 74 #endif |
| 4675 | 75 m.assign ("size", fs.size ()); |
| 76 m.assign ("atime", fs.atime ()); | |
| 77 m.assign ("mtime", fs.mtime ()); | |
| 78 m.assign ("ctime", fs.ctime ()); | |
| 3887 | 79 #if defined (HAVE_STRUCT_STAT_ST_BLKSIZE) |
| 4675 | 80 m.assign ("blksize", fs.blksize ()); |
| 2075 | 81 #endif |
| 3887 | 82 #if defined (HAVE_STRUCT_STAT_ST_BLOCKS) |
| 4675 | 83 m.assign ("blocks", fs.blocks ()); |
| 2075 | 84 #endif |
| 85 | |
| 86 return m; | |
| 87 } | |
| 88 | |
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89 static octave_value_list |
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90 mk_stat_result (const base_file_stat& fs) |
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91 { |
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92 octave_value_list retval; |
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93 |
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94 if (fs) |
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95 { |
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96 retval(2) = std::string (); |
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97 retval(1) = 0; |
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98 retval(0) = octave_value (mk_stat_map (fs)); |
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99 } |
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100 else |
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101 { |
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102 retval(2) = fs.error (); |
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103 retval(1) = -1; |
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104 retval(0) = Matrix (); |
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105 } |
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106 |
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107 return retval; |
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108 } |
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109 |
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110 DEFUNX ("dup2", Fdup2, args, , |
| 3301 | 111 "-*- texinfo -*-\n\ |
| 112 @deftypefn {Built-in Function} {[@var{fid}, @var{msg}] =} dup2 (@var{old}, @var{new})\n\ | |
| 2669 | 113 Duplicate a file descriptor.\n\ |
| 114 \n\ | |
| 3301 | 115 If successful, @var{fid} is greater than zero and contains the new file\n\ |
| 10840 | 116 ID@. Otherwise, @var{fid} is negative and @var{msg} contains a\n\ |
| 3301 | 117 system-dependent error message.\n\ |
| 118 @end deftypefn") | |
| 2075 | 119 { |
| 2669 | 120 octave_value_list retval; |
| 121 | |
| 3523 | 122 retval(1) = std::string (); |
| 4294 | 123 retval(0) = -1; |
| 2075 | 124 |
| 125 int nargin = args.length (); | |
| 126 | |
| 127 if (nargin == 2) | |
| 128 { | |
| 3341 | 129 octave_stream old_stream |
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130 = octave_stream_list::lookup (args(0), "dup2"); |
| 2075 | 131 |
| 3341 | 132 if (! error_state) |
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133 { |
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134 octave_stream new_stream |
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135 = octave_stream_list::lookup (args(1), "dup2"); |
| 2075 | 136 |
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137 if (! error_state) |
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138 { |
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139 int i_old = old_stream.file_number (); |
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140 int i_new = new_stream.file_number (); |
| 2937 | 141 |
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142 if (i_old >= 0 && i_new >= 0) |
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143 { |
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144 std::string msg; |
| 2669 | 145 |
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146 int status = octave_syscalls::dup2 (i_old, i_new, msg); |
| 3341 | 147 |
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148 retval(1) = msg; |
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149 retval(0) = status; |
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150 } |
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151 } |
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152 } |
| 3145 | 153 else |
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154 error ("dup2: invalid stream"); |
| 2075 | 155 } |
| 156 else | |
| 5823 | 157 print_usage (); |
| 2075 | 158 |
| 159 return retval; | |
| 160 } | |
| 161 | |
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162 DEFUNX ("exec", Fexec, args, , |
| 3301 | 163 "-*- texinfo -*-\n\ |
| 164 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} exec (@var{file}, @var{args})\n\ | |
| 165 Replace current process with a new process. Calling @code{exec} without\n\ | |
| 166 first calling @code{fork} will terminate your current Octave process and\n\ | |
| 167 replace it with the program named by @var{file}. For example,\n\ | |
| 2669 | 168 \n\ |
| 3301 | 169 @example\n\ |
| 170 exec (\"ls\" \"-l\")\n\ | |
| 171 @end example\n\ | |
| 2669 | 172 \n\ |
| 3301 | 173 @noindent\n\ |
| 174 will run @code{ls} and return you to your shell prompt.\n\ | |
| 175 \n\ | |
| 176 If successful, @code{exec} does not return. If @code{exec} does return,\n\ | |
| 177 @var{err} will be nonzero, and @var{msg} will contain a system-dependent\n\ | |
| 178 error message.\n\ | |
| 179 @end deftypefn") | |
| 2075 | 180 { |
| 2669 | 181 octave_value_list retval; |
| 182 | |
| 3523 | 183 retval(1) = std::string (); |
| 4294 | 184 retval(0) = -1; |
| 2075 | 185 |
| 186 int nargin = args.length (); | |
| 187 | |
| 188 if (nargin == 1 || nargin == 2) | |
| 189 { | |
| 3523 | 190 std::string exec_file = args(0).string_value (); |
| 2075 | 191 |
| 192 if (! error_state) | |
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193 { |
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194 string_vector exec_args; |
| 2075 | 195 |
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196 if (nargin == 2) |
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197 { |
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198 string_vector tmp = args(1).all_strings (); |
| 2075 | 199 |
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200 if (! error_state) |
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201 { |
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202 int len = tmp.length (); |
| 2075 | 203 |
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204 exec_args.resize (len + 1); |
| 2075 | 205 |
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206 exec_args[0] = exec_file; |
| 2075 | 207 |
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208 for (int i = 0; i < len; i++) |
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209 exec_args[i+1] = tmp[i]; |
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210 } |
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211 else |
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212 error ("exec: arguments must be character strings"); |
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213 } |
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214 else |
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215 { |
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216 exec_args.resize (1); |
| 2075 | 217 |
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218 exec_args[0] = exec_file; |
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219 } |
| 2075 | 220 |
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221 if (! error_state) |
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222 { |
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223 std::string msg; |
| 2937 | 224 |
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225 int status = octave_syscalls::execvp (exec_file, exec_args, msg); |
| 2669 | 226 |
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227 retval(1) = msg; |
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228 retval(0) = status; |
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229 } |
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230 } |
| 2075 | 231 else |
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232 error ("exec: FILE must be a string"); |
| 2075 | 233 } |
| 234 else | |
| 5823 | 235 print_usage (); |
| 2075 | 236 |
| 237 return retval; | |
| 238 } | |
| 239 | |
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240 DEFUNX ("popen2", Fpopen2, args, , |
| 6321 | 241 "-*- texinfo -*-\n\ |
| 6678 | 242 @deftypefn {Built-in Function} {[@var{in}, @var{out}, @var{pid}] =} popen2 (@var{command}, @var{args})\n\ |
| 6321 | 243 Start a subprocess with two-way communication. The name of the process\n\ |
| 244 is given by @var{command}, and @var{args} is an array of strings\n\ | |
| 245 containing options for the command. The file identifiers for the input\n\ | |
| 246 and output streams of the subprocess are returned in @var{in} and\n\ | |
| 247 @var{out}. If execution of the command is successful, @var{pid}\n\ | |
| 248 contains the process ID of the subprocess. Otherwise, @var{pid} is\n\ | |
| 249 @minus{}1.\n\ | |
| 250 \n\ | |
| 10840 | 251 For example:\n\ |
| 6321 | 252 \n\ |
| 253 @example\n\ | |
| 6923 | 254 [in, out, pid] = popen2 (\"sort\", \"-r\");\n\ |
| 6321 | 255 fputs (in, \"these\\nare\\nsome\\nstrings\\n\");\n\ |
| 256 fclose (in);\n\ | |
| 257 EAGAIN = errno (\"EAGAIN\");\n\ | |
| 258 done = false;\n\ | |
| 259 do\n\ | |
| 260 s = fgets (out);\n\ | |
| 261 if (ischar (s))\n\ | |
| 262 fputs (stdout, s);\n\ | |
| 263 elseif (errno () == EAGAIN)\n\ | |
| 264 sleep (0.1);\n\ | |
| 265 fclear (out);\n\ | |
| 266 else\n\ | |
| 267 done = true;\n\ | |
| 268 endif\n\ | |
| 269 until (done)\n\ | |
| 270 fclose (out);\n\ | |
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271 waitpid (pid);\n\ |
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272 @print{} these\n\ |
| 6321 | 273 @print{} strings\n\ |
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274 @print{} some\n\ |
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275 @print{} are\n\ |
| 6321 | 276 @end example\n\ |
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277 \n\ |
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278 Note that @code{popen2}, unlike @code{popen}, will not \"reap\" the\n\ |
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279 child process. If you don't use @code{waitpid} to check the child's\n\ |
| 9564 | 280 exit status, it will linger until Octave exits.\n\ |
| 6321 | 281 @end deftypefn") |
| 282 { | |
| 283 octave_value_list retval; | |
| 284 | |
| 285 retval(2) = -1; | |
| 286 retval(1) = Matrix (); | |
| 287 retval(0) = Matrix (); | |
| 288 | |
| 289 int nargin = args.length (); | |
| 290 | |
| 291 if (nargin >= 1 && nargin <= 3) | |
| 292 { | |
| 293 std::string exec_file = args(0).string_value(); | |
| 294 | |
| 295 if (! error_state) | |
| 296 { | |
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297 string_vector arg_list; |
| 6321 | 298 |
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299 if (nargin >= 2) |
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300 { |
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301 string_vector tmp = args(1).all_strings (); |
| 6321 | 302 |
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303 if (! error_state) |
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304 { |
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305 int len = tmp.length (); |
| 6321 | 306 |
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307 arg_list.resize (len + 1); |
| 6321 | 308 |
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309 arg_list[0] = exec_file; |
| 6321 | 310 |
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311 for (int i = 0; i < len; i++) |
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312 arg_list[i+1] = tmp[i]; |
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313 } |
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314 else |
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315 error ("popen2: arguments must be character strings"); |
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316 } |
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317 else |
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318 { |
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319 arg_list.resize (1); |
| 6321 | 320 |
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321 arg_list[0] = exec_file; |
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322 } |
| 6321 | 323 |
| 324 if (! error_state) | |
| 325 { | |
| 326 bool sync_mode = (nargin == 3 ? args(2).bool_value() : false); | |
| 327 | |
| 328 if (! error_state) | |
| 329 { | |
| 330 int fildes[2]; | |
| 331 std::string msg; | |
| 332 pid_t pid; | |
| 333 | |
| 334 pid = octave_syscalls::popen2 (exec_file, arg_list, sync_mode, fildes, msg, interactive); | |
| 335 if (pid >= 0) | |
| 336 { | |
| 337 FILE *ifile = fdopen (fildes[1], "r"); | |
| 338 FILE *ofile = fdopen (fildes[0], "w"); | |
| 339 | |
| 340 std::string nm; | |
| 341 | |
| 342 octave_stream is = octave_stdiostream::create (nm, ifile, | |
| 343 std::ios::in); | |
| 344 | |
| 345 octave_stream os = octave_stdiostream::create (nm, ofile, | |
| 346 std::ios::out); | |
| 347 | |
| 348 Cell file_ids (1, 2); | |
| 349 | |
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350 retval(2) = pid; |
| 6321 | 351 retval(1) = octave_stream_list::insert (is); |
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352 retval(0) = octave_stream_list::insert (os); |
| 6321 | 353 } |
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354 else |
| 6321 | 355 error (msg.c_str ()); |
| 356 } | |
| 357 } | |
| 358 else | |
| 359 error ("popen2: arguments must be character strings"); | |
| 360 } | |
| 361 else | |
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362 error ("popen2: COMMAND argument must be a string"); |
| 6321 | 363 } |
| 364 else | |
| 365 print_usage (); | |
| 366 | |
| 367 return retval; | |
| 368 } | |
| 369 | |
| 370 /* | |
| 371 | |
| 372 %!test | |
| 373 %! if (isunix()) | |
| 6923 | 374 %! [in, out, pid] = popen2 ("sort", "-r"); |
| 6321 | 375 %! EAGAIN = errno ("EAGAIN"); |
| 376 %! else | |
| 6322 | 377 %! [in, out, pid] = popen2 ("sort", "/R"); |
| 6321 | 378 %! EAGAIN = errno ("EINVAL"); |
| 379 %! endif | |
| 380 %! fputs (in, "these\nare\nsome\nstrings\n"); | |
| 381 %! fclose (in); | |
| 382 %! done = false; | |
| 383 %! str = {}; | |
| 384 %! idx = 0; | |
| 6545 | 385 %! errs = 0; |
| 6321 | 386 %! do |
| 387 %! if (!isunix()) | |
| 388 %! errno (0); | |
| 389 %! endif | |
| 390 %! s = fgets (out); | |
| 391 %! if (ischar (s)) | |
| 392 %! idx++; | |
| 393 %! str{idx} = s; | |
| 394 %! elseif (errno () == EAGAIN) | |
| 6543 | 395 %! fclear (out); |
| 6321 | 396 %! sleep (0.1); |
| 6545 | 397 %! if (++errs == 100) |
| 398 %! done = true; | |
| 399 %! endif | |
| 6321 | 400 %! else |
| 401 %! done = true; | |
| 402 %! endif | |
| 6545 | 403 %! until (done) |
| 6321 | 404 %! fclose (out); |
| 6324 | 405 %! if (isunix()) |
| 6322 | 406 %! assert(str,{"these\n","strings\n","some\n","are\n"}) |
| 407 %! else | |
| 408 %! assert(str,{"these\r\n","strings\r\n","some\r\n","are\r\n"}) | |
| 409 %! end | |
| 6321 | 410 |
| 411 */ | |
| 412 | |
| 10259 | 413 DEFUNX ("fcntl", Ffcntl, args, , |
| 3301 | 414 "-*- texinfo -*-\n\ |
| 415 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} fcntl (@var{fid}, @var{request}, @var{arg})\n\ | |
| 416 Change the properties of the open file @var{fid}. The following values\n\ | |
| 417 may be passed as @var{request}:\n\ | |
| 418 \n\ | |
| 419 @vtable @code\n\ | |
| 420 @item F_DUPFD\n\ | |
| 421 Return a duplicate file descriptor.\n\ | |
| 422 \n\ | |
| 423 @item F_GETFD\n\ | |
| 424 Return the file descriptor flags for @var{fid}.\n\ | |
| 425 \n\ | |
| 426 @item F_SETFD\n\ | |
| 427 Set the file descriptor flags for @var{fid}.\n\ | |
| 428 \n\ | |
| 429 @item F_GETFL\n\ | |
| 430 Return the file status flags for @var{fid}. The following codes may be\n\ | |
| 431 returned (some of the flags may be undefined on some systems).\n\ | |
| 432 \n\ | |
| 433 @vtable @code\n\ | |
| 434 @item O_RDONLY\n\ | |
| 435 Open for reading only.\n\ | |
| 436 \n\ | |
| 437 @item O_WRONLY\n\ | |
| 438 Open for writing only.\n\ | |
| 2669 | 439 \n\ |
| 3301 | 440 @item O_RDWR\n\ |
| 441 Open for reading and writing.\n\ | |
| 442 \n\ | |
| 443 @item O_APPEND\n\ | |
| 444 Append on each write.\n\ | |
| 445 \n\ | |
| 5040 | 446 @item O_CREAT\n\ |
| 447 Create the file if it does not exist.\n\ | |
| 448 \n\ | |
| 3301 | 449 @item O_NONBLOCK\n\ |
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450 Non-blocking mode.\n\ |
| 3301 | 451 \n\ |
| 452 @item O_SYNC\n\ | |
| 453 Wait for writes to complete.\n\ | |
| 2669 | 454 \n\ |
| 3301 | 455 @item O_ASYNC\n\ |
| 456 Asynchronous I/O.\n\ | |
| 457 @end vtable\n\ | |
| 458 \n\ | |
| 459 @item F_SETFL\n\ | |
| 460 Set the file status flags for @var{fid} to the value specified by\n\ | |
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461 @var{arg}. The only flags that can be changed are @w{@code{O_APPEND}} and\n\ |
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462 @w{@code{O_NONBLOCK}}.\n\ |
| 3301 | 463 @end vtable\n\ |
| 464 \n\ | |
| 465 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ | |
| 466 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ | |
| 467 system-dependent error message.\n\ | |
| 468 @end deftypefn") | |
| 2075 | 469 { |
| 2669 | 470 octave_value_list retval; |
| 471 | |
| 3523 | 472 retval(1) = std::string (); |
| 4294 | 473 retval(0) = -1; |
| 2075 | 474 |
| 475 int nargin = args.length (); | |
| 476 | |
| 477 if (nargin == 3) | |
| 478 { | |
| 3715 | 479 octave_stream strm = octave_stream_list::lookup (args (0), "fcntl"); |
| 2075 | 480 |
| 3202 | 481 if (! error_state) |
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482 { |
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483 int fid = strm.file_number (); |
| 3715 | 484 |
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485 int req = args(1).int_value (true); |
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486 int arg = args(2).int_value (true); |
| 3715 | 487 |
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488 if (! error_state) |
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489 { |
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490 // FIXME -- Need better checking here? |
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491 if (fid < 0) |
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492 error ("fcntl: invalid file id"); |
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493 else |
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494 { |
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495 std::string msg; |
| 2937 | 496 |
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497 int status = octave_fcntl (fid, req, arg, msg); |
| 2669 | 498 |
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499 retval(1) = msg; |
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500 retval(0) = status; |
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501 } |
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502 } |
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503 } |
| 2075 | 504 else |
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505 error ("fcntl: FID, REQUEST, and ARG must be integers"); |
| 2075 | 506 } |
| 507 else | |
| 5823 | 508 print_usage (); |
| 2075 | 509 |
| 510 return retval; | |
| 511 } | |
| 512 | |
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513 DEFUNX ("fork", Ffork, args, , |
| 3301 | 514 "-*- texinfo -*-\n\ |
| 515 @deftypefn {Built-in Function} {[@var{pid}, @var{msg}] =} fork ()\n\ | |
| 2669 | 516 Create a copy of the current process.\n\ |
| 517 \n\ | |
| 3301 | 518 Fork can return one of the following values:\n\ |
| 519 \n\ | |
| 520 @table @asis\n\ | |
| 521 @item > 0\n\ | |
| 522 You are in the parent process. The value returned from @code{fork} is\n\ | |
| 523 the process id of the child process. You should probably arrange to\n\ | |
| 524 wait for any child processes to exit.\n\ | |
| 525 \n\ | |
| 526 @item 0\n\ | |
| 527 You are in the child process. You can call @code{exec} to start another\n\ | |
| 528 process. If that fails, you should probably call @code{exit}.\n\ | |
| 529 \n\ | |
| 530 @item < 0\n\ | |
| 531 The call to @code{fork} failed for some reason. You must take evasive\n\ | |
| 532 action. A system dependent error message will be waiting in @var{msg}.\n\ | |
| 533 @end table\n\ | |
| 534 @end deftypefn") | |
| 2075 | 535 { |
| 2669 | 536 octave_value_list retval; |
| 537 | |
| 3523 | 538 retval(1) = std::string (); |
| 4294 | 539 retval(0) = -1; |
| 2075 | 540 |
| 541 int nargin = args.length (); | |
| 542 | |
| 543 if (nargin == 0) | |
| 2475 | 544 { |
| 3523 | 545 std::string msg; |
| 2937 | 546 |
| 547 pid_t pid = octave_syscalls::fork (msg); | |
| 2669 | 548 |
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549 retval(1) = msg; |
| 4233 | 550 retval(0) = pid; |
| 2475 | 551 } |
| 2075 | 552 else |
| 5823 | 553 print_usage (); |
| 2075 | 554 |
| 555 return retval; | |
| 556 } | |
| 557 | |
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558 DEFUNX ("getpgrp", Fgetpgrp, args, , |
| 3301 | 559 "-*- texinfo -*-\n\ |
| 560 @deftypefn {Built-in Function} {pgid =} getpgrp ()\n\ | |
| 561 Return the process group id of the current process.\n\ | |
| 562 @end deftypefn") | |
| 2075 | 563 { |
| 2937 | 564 octave_value_list retval; |
| 565 | |
| 3523 | 566 retval(1) = std::string (); |
| 4294 | 567 retval(0) = -1; |
| 2075 | 568 |
| 569 int nargin = args.length (); | |
| 570 | |
| 571 if (nargin == 0) | |
| 2475 | 572 { |
| 3523 | 573 std::string msg; |
| 2937 | 574 |
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575 retval(1) = msg; |
| 4233 | 576 retval(0) = octave_syscalls::getpgrp (msg); |
| 2475 | 577 } |
| 2075 | 578 else |
| 5823 | 579 print_usage (); |
| 2075 | 580 |
| 581 return retval; | |
| 582 } | |
| 583 | |
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584 DEFUNX ("getpid", Fgetpid, args, , |
| 3301 | 585 "-*- texinfo -*-\n\ |
| 586 @deftypefn {Built-in Function} {pid =} getpid ()\n\ | |
| 587 Return the process id of the current process.\n\ | |
| 588 @end deftypefn") | |
| 2075 | 589 { |
| 4233 | 590 octave_value retval = -1; |
| 2075 | 591 |
| 592 int nargin = args.length (); | |
| 593 | |
| 594 if (nargin == 0) | |
| 2937 | 595 retval = octave_syscalls::getpid (); |
| 2075 | 596 else |
| 5823 | 597 print_usage (); |
| 2075 | 598 |
| 599 return retval; | |
| 600 } | |
| 601 | |
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602 DEFUNX ("getppid", Fgetppid, args, , |
| 3301 | 603 "-*- texinfo -*-\n\ |
| 604 @deftypefn {Built-in Function} {pid =} getppid ()\n\ | |
| 605 Return the process id of the parent process.\n\ | |
| 606 @end deftypefn") | |
| 2075 | 607 { |
| 4233 | 608 octave_value retval = -1; |
| 2075 | 609 |
| 2475 | 610 int nargin = args.length (); |
| 611 | |
| 612 if (nargin == 0) | |
| 2937 | 613 retval = octave_syscalls::getppid (); |
| 2475 | 614 else |
| 5823 | 615 print_usage (); |
| 2475 | 616 |
| 617 return retval; | |
| 618 } | |
| 619 | |
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620 DEFUNX ("getegid", Fgetegid, args, , |
| 3301 | 621 "-*- texinfo -*-\n\ |
| 622 @deftypefn {Built-in Function} {egid =} getegid ()\n\ | |
| 623 Return the effective group id of the current process.\n\ | |
| 624 @end deftypefn") | |
| 2475 | 625 { |
| 4233 | 626 octave_value retval = -1; |
| 2475 | 627 |
| 2075 | 628 int nargin = args.length (); |
| 629 | |
| 630 if (nargin == 0) | |
| 4254 | 631 retval = octave_syscalls::getegid (); |
| 2075 | 632 else |
| 5823 | 633 print_usage (); |
| 2475 | 634 |
| 635 return retval; | |
| 636 } | |
| 637 | |
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638 DEFUNX ("getgid", Fgetgid, args, , |
| 3301 | 639 "-*- texinfo -*-\n\ |
| 640 @deftypefn {Built-in Function} {gid =} getgid ()\n\ | |
| 641 Return the real group id of the current process.\n\ | |
| 642 @end deftypefn") | |
| 2475 | 643 { |
| 4233 | 644 octave_value retval = -1; |
| 2475 | 645 |
| 646 int nargin = args.length (); | |
| 647 | |
| 648 if (nargin == 0) | |
| 4254 | 649 retval = octave_syscalls::getgid (); |
| 2475 | 650 else |
| 5823 | 651 print_usage (); |
| 2075 | 652 |
| 653 return retval; | |
| 654 } | |
| 655 | |
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656 DEFUNX ("geteuid", Fgeteuid, args, , |
| 3301 | 657 "-*- texinfo -*-\n\ |
| 658 @deftypefn {Built-in Function} {euid =} geteuid ()\n\ | |
| 659 Return the effective user id of the current process.\n\ | |
| 660 @end deftypefn") | |
| 2472 | 661 { |
| 4233 | 662 octave_value retval = -1; |
| 2472 | 663 |
| 664 int nargin = args.length (); | |
| 665 | |
| 666 if (nargin == 0) | |
| 4254 | 667 retval = octave_syscalls::geteuid (); |
| 2472 | 668 else |
| 5823 | 669 print_usage (); |
| 2473 | 670 |
| 671 return retval; | |
| 2472 | 672 } |
| 673 | |
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674 DEFUNX ("getuid", Fgetuid, args, , |
| 3301 | 675 "-*- texinfo -*-\n\ |
| 676 @deftypefn {Built-in Function} {uid =} getuid ()\n\ | |
| 677 Return the real user id of the current process.\n\ | |
| 678 @end deftypefn") | |
| 2472 | 679 { |
| 4233 | 680 octave_value retval = -1; |
| 2472 | 681 |
| 682 int nargin = args.length (); | |
| 683 | |
| 684 if (nargin == 0) | |
| 4254 | 685 retval = octave_syscalls::getuid (); |
| 2472 | 686 else |
| 5823 | 687 print_usage (); |
| 2473 | 688 |
| 689 return retval; | |
| 2472 | 690 } |
| 691 | |
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692 DEFUNX ("kill", Fkill, args, , |
| 4371 | 693 "-*- texinfo -*-\n\ |
| 4294 | 694 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} kill (@var{pid}, @var{sig})\n\ |
| 695 Send signal @var{sig} to process @var{pid}.\n\ | |
| 696 \n\ | |
| 697 If @var{pid} is positive, then signal @var{sig} is sent to @var{pid}.\n\ | |
| 698 \n\ | |
| 699 If @var{pid} is 0, then signal @var{sig} is sent to every process\n\ | |
| 700 in the process group of the current process.\n\ | |
| 701 \n\ | |
| 702 If @var{pid} is -1, then signal @var{sig} is sent to every process\n\ | |
| 703 except process 1.\n\ | |
| 704 \n\ | |
| 705 If @var{pid} is less than -1, then signal @var{sig} is sent to every\n\ | |
| 706 process in the process group @var{-pid}.\n\ | |
| 707 \n\ | |
| 4371 | 708 If @var{sig} is 0, then no signal is sent, but error checking is still\n\ |
| 4294 | 709 performed.\n\ |
| 710 \n\ | |
| 7001 | 711 Return 0 if successful, otherwise return -1.\n\ |
| 4294 | 712 @end deftypefn") |
| 713 { | |
| 714 octave_value_list retval; | |
| 715 | |
| 716 retval(1) = std::string (); | |
| 717 retval(0) = -1; | |
| 718 | |
| 719 if (args.length () == 2) | |
| 720 { | |
| 721 pid_t pid = args(0).int_value (true); | |
| 722 | |
| 723 if (! error_state) | |
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724 { |
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725 int sig = args(1).int_value (true); |
| 4294 | 726 |
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727 if (! error_state) |
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728 { |
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729 std::string msg; |
| 4294 | 730 |
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731 int status = octave_syscalls::kill (pid, sig, msg); |
| 4294 | 732 |
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733 retval(1) = msg; |
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734 retval(0) = status; |
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735 } |
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736 } |
| 4294 | 737 } |
| 738 else | |
| 5823 | 739 print_usage (); |
| 4294 | 740 |
| 741 return retval; | |
| 742 } | |
| 743 | |
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744 DEFUNX ("lstat", Flstat, args, , |
| 3458 | 745 "-*- texinfo -*-\n\ |
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746 @deftypefn {Built-in Function} {[@var{info}, @var{err}, @var{msg}] =} lstat (@var{symlink})\n\ |
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747 Return a structure @var{info} containing information about the symbolic link\n\ |
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748 @var{symlink}. The function outputs are described in the documentation for\n\ |
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749 @code{stat}.\n\ |
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750 @seealso{stat}\n\ |
| 3458 | 751 @end deftypefn") |
| 2075 | 752 { |
| 2263 | 753 octave_value_list retval; |
| 2075 | 754 |
| 755 if (args.length () == 1) | |
| 756 { | |
| 5872 | 757 std::string fname = args(0).string_value (); |
| 2075 | 758 |
| 759 if (! error_state) | |
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760 { |
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761 file_stat fs (fname, false); |
| 2075 | 762 |
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763 retval = mk_stat_result (fs); |
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764 } |
| 2075 | 765 } |
| 766 else | |
| 5823 | 767 print_usage (); |
| 2075 | 768 |
| 769 return retval; | |
| 770 } | |
| 771 | |
|
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772 DEFUNX ("mkfifo", Fmkfifo, args, , |
| 3345 | 773 "-*- texinfo -*-\n\ |
| 4825 | 774 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} mkfifo (@var{name}, @var{mode})\n\ |
| 4928 | 775 Create a @var{fifo} special file named @var{name} with file mode @var{mode}\n\ |
| 2075 | 776 \n\ |
| 3301 | 777 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
| 778 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ | |
| 779 system-dependent error message.\n\ | |
| 780 @end deftypefn") | |
| 2075 | 781 { |
| 2669 | 782 octave_value_list retval; |
| 783 | |
| 3523 | 784 retval(1) = std::string (); |
| 4294 | 785 retval(0) = -1; |
| 2075 | 786 |
| 787 int nargin = args.length (); | |
| 788 | |
| 789 if (nargin == 2) | |
| 790 { | |
| 791 if (args(0).is_string ()) | |
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792 { |
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793 std::string name = args(0).string_value (); |
| 2075 | 794 |
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795 if (args(1).is_scalar_type ()) |
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796 { |
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797 long mode = args(1).long_value (); |
| 2075 | 798 |
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799 if (! error_state) |
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800 { |
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801 std::string msg; |
| 4254 | 802 |
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803 int status = octave_mkfifo (name, mode, msg); |
| 2669 | 804 |
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805 retval(0) = status; |
| 2669 | 806 |
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807 if (status < 0) |
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808 retval(1) = msg; |
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809 } |
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810 else |
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811 error ("mkfifo: invalid MODE"); |
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812 } |
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813 else |
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814 error ("mkfifo: MODE must be an integer"); |
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815 } |
| 2075 | 816 else |
|
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817 error ("mkfifo: FILE must be a string"); |
| 2075 | 818 } |
| 819 else | |
| 5823 | 820 print_usage (); |
| 2075 | 821 |
| 822 return retval; | |
| 823 } | |
| 824 | |
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825 DEFUNX ("pipe", Fpipe, args, , |
| 3301 | 826 "-*- texinfo -*-\n\ |
| 6321 | 827 @deftypefn {Built-in Function} {[@var{read_fd}, @var{write_fd}, @var{err}, @var{msg}] =} pipe ()\n\ |
| 828 Create a pipe and return the reading and writing ends of the pipe\n\ | |
| 829 into @var{read_fd} and @var{write_fd} respectively.\n\ | |
| 2669 | 830 \n\ |
| 3301 | 831 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
| 832 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ | |
| 833 system-dependent error message.\n\ | |
| 834 @end deftypefn") | |
| 2075 | 835 { |
| 2669 | 836 octave_value_list retval; |
| 837 | |
| 6321 | 838 retval(3) = std::string (); |
| 839 retval(2) = -1; | |
| 4294 | 840 retval(1) = -1; |
| 6321 | 841 retval(0) = -1; |
| 2075 | 842 |
| 843 int nargin = args.length (); | |
| 844 | |
| 845 if (nargin == 0) | |
| 846 { | |
| 847 int fid[2]; | |
| 848 | |
| 3523 | 849 std::string msg; |
| 2937 | 850 |
| 851 int status = octave_syscalls::pipe (fid, msg); | |
| 2669 | 852 |
| 853 if (status < 0) | |
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854 retval(3) = msg; |
| 2669 | 855 else |
|
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856 { |
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857 FILE *ifile = fdopen (fid[0], "r"); |
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858 FILE *ofile = fdopen (fid[1], "w"); |
| 2075 | 859 |
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860 std::string nm; |
| 4327 | 861 |
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862 octave_stream is = octave_stdiostream::create (nm, ifile, |
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863 std::ios::in); |
| 4327 | 864 |
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865 octave_stream os = octave_stdiostream::create (nm, ofile, |
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866 std::ios::out); |
| 2075 | 867 |
|
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868 retval(2) = status; |
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869 retval(1) = octave_stream_list::insert (os); |
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870 retval(0) = octave_stream_list::insert (is); |
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871 } |
| 2075 | 872 } |
| 873 else | |
| 5823 | 874 print_usage (); |
| 2075 | 875 |
| 876 return retval; | |
| 877 } | |
| 878 | |
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879 DEFUNX ("stat", Fstat, args, , |
| 3301 | 880 "-*- texinfo -*-\n\ |
| 10840 | 881 @deftypefn {Built-in Function} {[@var{info}, @var{err}, @var{msg}] =} stat (@var{file})\n\ |
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882 @deftypefnx {Built-in Function} {[@var{info}, @var{err}, @var{msg}] =} stat (@var{fid})\n\ |
| 3301 | 883 @deftypefnx {Built-in Function} {[@var{info}, @var{err}, @var{msg}] =} lstat (@var{file})\n\ |
|
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884 @deftypefnx {Built-in Function} {[@var{info}, @var{err}, @var{msg}] =} lstat (@var{fid})\n\ |
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885 Return a structure @var{info} containing the following information about\n\ |
|
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886 @var{file} or file identifier @var{fid}.\n\ |
| 3301 | 887 \n\ |
| 888 @table @code\n\ | |
| 889 @item dev\n\ | |
| 890 ID of device containing a directory entry for this file.\n\ | |
| 891 \n\ | |
| 892 @item ino\n\ | |
| 893 File number of the file.\n\ | |
| 894 \n\ | |
| 5476 | 895 @item mode\n\ |
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896 File mode, as an integer. Use the functions @w{@code{S_ISREG}},\n\ |
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897 @w{@code{S_ISDIR}}, @w{@code{S_ISCHR}}, @w{@code{S_ISBLK}}, @w{@code{S_ISFIFO}},\n\ |
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898 @w{@code{S_ISLNK}}, or @w{@code{S_ISSOCK}} to extract information from this\n\ |
| 5476 | 899 value.\n\ |
| 900 \n\ | |
| 3301 | 901 @item modestr\n\ |
| 902 File mode, as a string of ten letters or dashes as would be returned by\n\ | |
| 903 @kbd{ls -l}.\n\ | |
| 904 \n\ | |
| 905 @item nlink\n\ | |
| 906 Number of links.\n\ | |
| 2075 | 907 \n\ |
| 3301 | 908 @item uid\n\ |
| 909 User ID of file's owner.\n\ | |
| 910 \n\ | |
| 911 @item gid\n\ | |
| 912 Group ID of file's group.\n\ | |
| 913 \n\ | |
| 914 @item rdev\n\ | |
| 915 ID of device for block or character special files.\n\ | |
| 916 \n\ | |
| 917 @item size\n\ | |
| 918 Size in bytes.\n\ | |
| 919 \n\ | |
| 920 @item atime\n\ | |
| 921 Time of last access in the same form as time values returned from\n\ | |
| 922 @code{time}. @xref{Timing Utilities}.\n\ | |
| 923 \n\ | |
| 924 @item mtime\n\ | |
| 925 Time of last modification in the same form as time values returned from\n\ | |
| 926 @code{time}. @xref{Timing Utilities}.\n\ | |
| 2075 | 927 \n\ |
| 3301 | 928 @item ctime\n\ |
| 929 Time of last file status change in the same form as time values\n\ | |
| 930 returned from @code{time}. @xref{Timing Utilities}.\n\ | |
| 931 \n\ | |
| 932 @item blksize\n\ | |
| 933 Size of blocks in the file.\n\ | |
| 934 \n\ | |
| 935 @item blocks\n\ | |
| 936 Number of blocks allocated for file.\n\ | |
| 937 @end table\n\ | |
| 938 \n\ | |
| 939 If the call is successful @var{err} is 0 and @var{msg} is an empty\n\ | |
| 940 string. If the file does not exist, or some other error occurs, @var{s}\n\ | |
| 941 is an empty matrix, @var{err} is @minus{}1, and @var{msg} contains the\n\ | |
| 942 corresponding system error message.\n\ | |
| 943 \n\ | |
| 944 If @var{file} is a symbolic link, @code{stat} will return information\n\ | |
| 7001 | 945 about the actual file that is referenced by the link. Use @code{lstat}\n\ |
| 3301 | 946 if you want information about the symbolic link itself.\n\ |
| 947 \n\ | |
| 10840 | 948 For example:\n\ |
| 2075 | 949 \n\ |
| 3301 | 950 @example\n\ |
| 951 [s, err, msg] = stat (\"/vmlinuz\")\n\ | |
| 952 @result{} s =\n\ | |
| 953 @{\n\ | |
| 954 atime = 855399756\n\ | |
| 955 rdev = 0\n\ | |
| 956 ctime = 847219094\n\ | |
| 957 uid = 0\n\ | |
| 958 size = 389218\n\ | |
| 959 blksize = 4096\n\ | |
| 960 mtime = 847219094\n\ | |
| 961 gid = 6\n\ | |
| 962 nlink = 1\n\ | |
| 963 blocks = 768\n\ | |
| 5476 | 964 mode = -rw-r--r--\n\ |
| 3301 | 965 modestr = -rw-r--r--\n\ |
| 966 ino = 9316\n\ | |
| 967 dev = 2049\n\ | |
| 968 @}\n\ | |
| 969 @result{} err = 0\n\ | |
|
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970 @result{} msg =\n\ |
| 3301 | 971 @end example\n\ |
| 972 @end deftypefn") | |
| 2075 | 973 { |
| 2262 | 974 octave_value_list retval; |
| 2075 | 975 |
| 976 if (args.length () == 1) | |
| 977 { | |
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978 if (args(0).is_scalar_type ()) |
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979 { |
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980 int fid = octave_stream_list::get_file_number (args(0)); |
| 2075 | 981 |
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982 if (! error_state) |
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983 { |
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984 file_fstat fs (fid); |
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985 |
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986 retval = mk_stat_result (fs); |
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987 } |
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988 } |
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989 else |
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990 { |
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991 std::string fname = args(0).string_value (); |
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992 |
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993 if (! error_state) |
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994 { |
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995 file_stat fs (fname); |
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996 |
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997 retval = mk_stat_result (fs); |
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998 } |
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999 } |
| 2075 | 1000 } |
| 1001 else | |
| 5823 | 1002 print_usage (); |
| 2075 | 1003 |
| 1004 return retval; | |
| 1005 } | |
| 1006 | |
| 5476 | 1007 DEFUNX ("S_ISREG", FS_ISREG, args, , |
| 1008 "-*- texinfo -*-\n\ | |
| 1009 @deftypefn {Built-in Function} {} S_ISREG (@var{mode})\n\ | |
| 1010 Return true if @var{mode} corresponds to a regular file. The value\n\ | |
| 1011 of @var{mode} is assumed to be returned from a call to @code{stat}.\n\ | |
| 1012 @seealso{stat, lstat}\n\ | |
| 1013 @end deftypefn") | |
| 1014 { | |
| 1015 octave_value retval = false; | |
| 1016 | |
| 1017 if (args.length () == 1) | |
| 1018 { | |
| 1019 double mode = args(0).double_value (); | |
| 1020 | |
| 1021 if (! error_state) | |
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1022 retval = file_stat::is_reg (static_cast<mode_t> (mode)); |
| 5476 | 1023 else |
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1024 error ("S_ISREG: invalid MODE value"); |
| 5476 | 1025 } |
| 1026 else | |
| 5823 | 1027 print_usage (); |
| 5476 | 1028 |
| 1029 return retval; | |
| 1030 } | |
| 1031 | |
| 1032 DEFUNX ("S_ISDIR", FS_ISDIR, args, , | |
| 1033 "-*- texinfo -*-\n\ | |
| 1034 @deftypefn {Built-in Function} {} S_ISDIR (@var{mode})\n\ | |
| 1035 Return true if @var{mode} corresponds to a directory. The value\n\ | |
| 1036 of @var{mode} is assumed to be returned from a call to @code{stat}.\n\ | |
| 1037 @seealso{stat, lstat}\n\ | |
| 1038 @end deftypefn") | |
| 1039 { | |
| 1040 octave_value retval = false; | |
| 1041 | |
| 1042 if (args.length () == 1) | |
| 1043 { | |
| 1044 double mode = args(0).double_value (); | |
| 1045 | |
| 1046 if (! error_state) | |
|
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1047 retval = file_stat::is_dir (static_cast<mode_t> (mode)); |
| 5476 | 1048 else |
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1049 error ("S_ISDIR: invalid MODE value"); |
| 5476 | 1050 } |
| 1051 else | |
| 5823 | 1052 print_usage (); |
| 5476 | 1053 |
| 1054 return retval; | |
| 1055 } | |
| 1056 | |
| 1057 DEFUNX ("S_ISCHR", FS_ISCHR, args, , | |
| 1058 "-*- texinfo -*-\n\ | |
| 1059 @deftypefn {Built-in Function} {} S_ISCHR (@var{mode})\n\ | |
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1060 Return true if @var{mode} corresponds to a character device. The value\n\ |
| 5476 | 1061 of @var{mode} is assumed to be returned from a call to @code{stat}.\n\ |
| 1062 @seealso{stat, lstat}\n\ | |
| 1063 @end deftypefn") | |
| 1064 { | |
| 1065 octave_value retval = false; | |
| 1066 | |
| 1067 if (args.length () == 1) | |
| 1068 { | |
| 1069 double mode = args(0).double_value (); | |
| 1070 | |
| 1071 if (! error_state) | |
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1072 retval = file_stat::is_chr (static_cast<mode_t> (mode)); |
| 5476 | 1073 else |
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1074 error ("S_ISCHR: invalid MODE value"); |
| 5476 | 1075 } |
| 1076 else | |
| 5823 | 1077 print_usage (); |
| 5476 | 1078 |
| 1079 return retval; | |
| 1080 } | |
| 1081 | |
| 1082 DEFUNX ("S_ISBLK", FS_ISBLK, args, , | |
| 1083 "-*- texinfo -*-\n\ | |
| 1084 @deftypefn {Built-in Function} {} S_ISBLK (@var{mode})\n\ | |
| 1085 Return true if @var{mode} corresponds to a block device. The value\n\ | |
| 1086 of @var{mode} is assumed to be returned from a call to @code{stat}.\n\ | |
| 1087 @seealso{stat, lstat}\n\ | |
| 1088 @end deftypefn") | |
| 1089 { | |
| 1090 octave_value retval = false; | |
| 1091 | |
| 1092 if (args.length () == 1) | |
| 1093 { | |
| 1094 double mode = args(0).double_value (); | |
| 1095 | |
| 1096 if (! error_state) | |
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1097 retval = file_stat::is_blk (static_cast<mode_t> (mode)); |
| 5476 | 1098 else |
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1099 error ("S_ISBLK: invalid MODE value"); |
| 5476 | 1100 } |
| 1101 else | |
| 5823 | 1102 print_usage (); |
| 5476 | 1103 |
| 1104 return retval; | |
| 1105 } | |
| 1106 | |
| 1107 DEFUNX ("S_ISFIFO", FS_ISFIFO, args, , | |
| 1108 "-*- texinfo -*-\n\ | |
| 1109 @deftypefn {Built-in Function} {} S_ISFIFO (@var{mode})\n\ | |
| 1110 Return true if @var{mode} corresponds to a fifo. The value\n\ | |
| 1111 of @var{mode} is assumed to be returned from a call to @code{stat}.\n\ | |
| 1112 @seealso{stat, lstat}\n\ | |
| 1113 @end deftypefn") | |
| 1114 { | |
| 1115 octave_value retval = false; | |
| 1116 | |
| 1117 if (args.length () == 1) | |
| 1118 { | |
| 1119 double mode = args(0).double_value (); | |
| 1120 | |
| 1121 if (! error_state) | |
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1122 retval = file_stat::is_fifo (static_cast<mode_t> (mode)); |
| 5476 | 1123 else |
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1124 error ("S_ISFIFO: invalid MODE value"); |
| 5476 | 1125 } |
| 1126 else | |
| 5823 | 1127 print_usage (); |
| 5476 | 1128 |
| 1129 return retval; | |
| 1130 } | |
| 1131 | |
| 1132 DEFUNX ("S_ISLNK", FS_ISLNK, args, , | |
| 1133 "-*- texinfo -*-\n\ | |
| 1134 @deftypefn {Built-in Function} {} S_ISLNK (@var{mode})\n\ | |
| 1135 Return true if @var{mode} corresponds to a symbolic link. The value\n\ | |
| 1136 of @var{mode} is assumed to be returned from a call to @code{stat}.\n\ | |
| 1137 @seealso{stat, lstat}\n\ | |
| 1138 @end deftypefn") | |
| 1139 { | |
| 1140 octave_value retval = false; | |
| 1141 | |
| 1142 if (args.length () == 1) | |
| 1143 { | |
| 1144 double mode = args(0).double_value (); | |
| 1145 | |
| 1146 if (! error_state) | |
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1147 retval = file_stat::is_lnk (static_cast<mode_t> (mode)); |
| 5476 | 1148 else |
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1149 error ("S_ISLNK: invalid MODE value"); |
| 5476 | 1150 } |
| 1151 else | |
| 5823 | 1152 print_usage (); |
| 5476 | 1153 |
| 1154 return retval; | |
| 1155 } | |
| 1156 | |
| 1157 DEFUNX ("S_ISSOCK", FS_ISSOCK, args, , | |
| 1158 "-*- texinfo -*-\n\ | |
| 1159 @deftypefn {Built-in Function} {} S_ISSOCK (@var{mode})\n\ | |
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1160 Return true if @var{mode} corresponds to a socket. The value\n\ |
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1161 of @var{mode} is assumed to be returned from a call to @code{stat}.\n\ |
| 5476 | 1162 @seealso{stat, lstat}\n\ |
| 1163 @end deftypefn") | |
| 1164 { | |
| 1165 octave_value retval = false; | |
| 1166 | |
| 1167 if (args.length () == 1) | |
| 1168 { | |
| 1169 double mode = args(0).double_value (); | |
| 1170 | |
| 1171 if (! error_state) | |
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1172 retval = file_stat::is_sock (static_cast<mode_t> (mode)); |
| 5476 | 1173 else |
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1174 error ("S_ISSOCK: invalid MODE value"); |
| 5476 | 1175 } |
| 1176 else | |
| 5823 | 1177 print_usage (); |
| 5476 | 1178 |
| 1179 return retval; | |
| 1180 } | |
| 1181 | |
|
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1182 DEFUN (gethostname, args, , |
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1183 "-*- texinfo -*-\n\ |
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1184 @deftypefn {Built-in Function} {} gethostname ()\n\ |
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1185 Return the hostname of the system where Octave is running.\n\ |
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1186 @end deftypefn") |
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1187 { |
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1188 octave_value retval; |
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1189 |
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1190 if (args.length () == 0) |
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1191 retval = octave_env::get_host_name (); |
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1192 else |
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1193 print_usage (); |
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1194 |
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1195 return retval; |
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1196 } |
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1197 |
| 5547 | 1198 DEFUN (uname, args, , |
| 1199 "-*- texinfo -*-\n\ | |
| 1200 @deftypefn {Built-in Function} {[@var{uts}, @var{err}, @var{msg}] =} uname ()\n\ | |
| 10840 | 1201 Return system information in the structure. For example:\n\ |
| 5547 | 1202 \n\ |
| 1203 @example\n\ | |
| 1204 @group\n\ | |
| 1205 uname ()\n\ | |
| 1206 @result{} @{\n\ | |
| 5656 | 1207 sysname = x86_64\n\ |
| 1208 nodename = segfault\n\ | |
| 1209 release = 2.6.15-1-amd64-k8-smp\n\ | |
| 1210 version = Linux\n\ | |
| 1211 machine = #2 SMP Thu Feb 23 04:57:49 UTC 2006\n\ | |
| 5547 | 1212 @}\n\ |
| 1213 @end group\n\ | |
| 1214 @end example\n\ | |
| 1215 \n\ | |
| 1216 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ | |
| 1217 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ | |
| 1218 system-dependent error message.\n\ | |
| 1219 @end deftypefn") | |
| 1220 { | |
| 1221 octave_value_list retval; | |
| 1222 | |
| 1223 if (args.length () == 0) | |
| 1224 { | |
| 1225 octave_uname sysinfo; | |
| 1226 | |
|
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1227 octave_scalar_map m; |
| 5547 | 1228 |
| 1229 m.assign ("sysname", sysinfo.sysname ()); | |
| 1230 m.assign ("nodename", sysinfo.nodename ()); | |
| 1231 m.assign ("release", sysinfo.release ()); | |
| 1232 m.assign ("version", sysinfo.version ()); | |
| 1233 m.assign ("machine", sysinfo.machine ()); | |
| 1234 | |
| 1235 retval(2) = sysinfo.message (); | |
| 1236 retval(1) = sysinfo.error (); | |
| 1237 retval(0) = m; | |
| 1238 } | |
| 1239 else | |
| 5823 | 1240 print_usage (); |
| 5547 | 1241 |
| 1242 return retval; | |
| 1243 } | |
| 1244 | |
|
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1245 DEFUNX ("unlink", Funlink, args, , |
| 3301 | 1246 "-*- texinfo -*-\n\ |
| 1247 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} unlink (@var{file})\n\ | |
| 1248 Delete the file named @var{file}.\n\ | |
| 2075 | 1249 \n\ |
| 3301 | 1250 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
| 1251 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ | |
| 1252 system-dependent error message.\n\ | |
| 1253 @end deftypefn") | |
| 2075 | 1254 { |
| 2669 | 1255 octave_value_list retval; |
| 1256 | |
| 3523 | 1257 retval(1) = std::string (); |
| 4294 | 1258 retval(0) = -1; |
| 2075 | 1259 |
| 1260 int nargin = args.length (); | |
| 1261 | |
| 1262 if (nargin == 1) | |
| 1263 { | |
| 1264 if (args(0).is_string ()) | |
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1265 { |
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1266 std::string name = args(0).string_value (); |
| 2075 | 1267 |
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1268 std::string msg; |
| 2669 | 1269 |
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1270 int status = octave_unlink (name, msg); |
| 2669 | 1271 |
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1272 retval(1) = msg; |
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1273 retval(0) = status; |
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1274 } |
| 2075 | 1275 else |
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1276 error ("unlink: FILE must be a string"); |
| 2075 | 1277 } |
| 1278 else | |
| 5823 | 1279 print_usage (); |
| 2075 | 1280 |
| 1281 return retval; | |
| 1282 } | |
| 1283 | |
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1284 DEFUNX ("waitpid", Fwaitpid, args, , |
| 3301 | 1285 "-*- texinfo -*-\n\ |
| 5453 | 1286 @deftypefn {Built-in Function} {[@var{pid}, @var{status}, @var{msg}] =} waitpid (@var{pid}, @var{options})\n\ |
| 3301 | 1287 Wait for process @var{pid} to terminate. The @var{pid} argument can be:\n\ |
| 2075 | 1288 \n\ |
| 3301 | 1289 @table @asis\n\ |
| 1290 @item @minus{}1\n\ | |
| 1291 Wait for any child process.\n\ | |
| 2075 | 1292 \n\ |
| 3301 | 1293 @item 0\n\ |
| 1294 Wait for any child process whose process group ID is equal to that of\n\ | |
| 1295 the Octave interpreter process.\n\ | |
| 2075 | 1296 \n\ |
| 3301 | 1297 @item > 0\n\ |
| 1298 Wait for termination of the child process with ID @var{pid}.\n\ | |
| 1299 @end table\n\ | |
| 1300 \n\ | |
| 5453 | 1301 The @var{options} argument can be a bitwise OR of zero or more of\n\ |
| 1302 the following constants:\n\ | |
| 2075 | 1303 \n\ |
| 5453 | 1304 @table @code\n\ |
| 3301 | 1305 @item 0\n\ |
| 1306 Wait until signal is received or a child process exits (this is the\n\ | |
| 1307 default if the @var{options} argument is missing).\n\ | |
| 1308 \n\ | |
| 5453 | 1309 @item WNOHANG\n\ |
| 3301 | 1310 Do not hang if status is not immediately available.\n\ |
| 2075 | 1311 \n\ |
| 5453 | 1312 @item WUNTRACED\n\ |
| 3301 | 1313 Report the status of any child processes that are stopped, and whose\n\ |
| 1314 status has not yet been reported since they stopped.\n\ | |
| 1315 \n\ | |
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1316 @item WCONTINUE\n\ |
| 5453 | 1317 Return if a stopped child has been resumed by delivery of @code{SIGCONT}.\n\ |
| 1318 This value may not be meaningful on all systems.\n\ | |
| 3301 | 1319 @end table\n\ |
| 1320 \n\ | |
| 1321 If the returned value of @var{pid} is greater than 0, it is the process\n\ | |
| 1322 ID of the child process that exited. If an error occurs, @var{pid} will\n\ | |
| 1323 be less than zero and @var{msg} will contain a system-dependent error\n\ | |
| 7001 | 1324 message. The value of @var{status} contains additional system-dependent\n\ |
| 5453 | 1325 information about the subprocess that exited.\n\ |
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1326 @seealso{WCONTINUE, WCOREDUMP, WEXITSTATUS, WIFCONTINUED, WIFSIGNALED, WIFSTOPPED, WNOHANG, WSTOPSIG, WTERMSIG, WUNTRACED}\n\ |
| 3301 | 1327 @end deftypefn") |
| 2075 | 1328 { |
| 2669 | 1329 octave_value_list retval; |
| 1330 | |
| 5453 | 1331 retval(2) = std::string (); |
| 1332 retval(1) = 0; | |
| 4294 | 1333 retval(0) = -1; |
| 2075 | 1334 |
| 1335 int nargin = args.length (); | |
| 1336 | |
| 1337 if (nargin == 1 || nargin == 2) | |
| 1338 { | |
| 3202 | 1339 pid_t pid = args(0).int_value (true); |
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1340 |
| 2075 | 1341 if (! error_state) |
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1342 { |
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1343 int options = 0; |
| 2075 | 1344 |
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1345 if (args.length () == 2) |
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1346 options = args(1).int_value (true); |
| 2937 | 1347 |
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1348 if (! error_state) |
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1349 { |
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1350 std::string msg; |
| 2669 | 1351 |
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1352 int status = 0; |
| 5453 | 1353 |
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1354 pid_t result = octave_syscalls::waitpid (pid, &status, options, msg); |
| 3202 | 1355 |
|
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1356 retval(2) = msg; |
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1357 retval(1) = status; |
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1358 retval(0) = result; |
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1359 } |
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1360 else |
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1361 error ("waitpid: OPTIONS must be an integer"); |
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1362 } |
| 3202 | 1363 else |
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1364 error ("waitpid: PID must be an integer value"); |
| 2075 | 1365 } |
| 1366 else | |
| 5823 | 1367 print_usage (); |
| 2075 | 1368 |
| 1369 return retval; | |
| 1370 } | |
| 1371 | |
| 5453 | 1372 DEFUNX ("WIFEXITED", FWIFEXITED, args, , |
| 1373 "-*- texinfo -*-\n\ | |
| 1374 @deftypefn {Built-in Function} {} WIFEXITED (@var{status})\n\ | |
| 1375 Given @var{status} from a call to @code{waitpid}, return true if the\n\ | |
| 1376 child terminated normally.\n\ | |
| 1377 @seealso{waitpid, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED}\n\ | |
| 5646 | 1378 @end deftypefn") |
| 5453 | 1379 { |
| 1380 octave_value retval = 0.0; | |
| 1381 | |
| 1382 #if defined (WIFEXITED) | |
| 1383 if (args.length () == 1) | |
| 1384 { | |
| 1385 int status = args(0).int_value (); | |
| 1386 | |
| 1387 if (! error_state) | |
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1388 retval = WIFEXITED (status); |
| 5453 | 1389 else |
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1390 error ("WIFEXITED: STATUS must be an integer"); |
| 5453 | 1391 } |
| 1392 #else | |
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1393 warning ("WIFEXITED always returns false in this version of Octave"); |
| 5453 | 1394 #endif |
| 1395 | |
| 1396 return retval; | |
| 1397 } | |
| 1398 | |
| 1399 DEFUNX ("WEXITSTATUS", FWEXITSTATUS, args, , | |
| 1400 "-*- texinfo -*-\n\ | |
| 1401 @deftypefn {Built-in Function} {} WEXITSTATUS (@var{status})\n\ | |
| 1402 Given @var{status} from a call to @code{waitpid}, return the exit\n\ | |
| 1403 status of the child. This function should only be employed if\n\ | |
| 1404 @code{WIFEXITED} returned true.\n\ | |
| 1405 @seealso{waitpid, WIFEXITED, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED}\n\ | |
| 1406 @end deftypefn") | |
| 1407 { | |
| 1408 octave_value retval = 0.0; | |
| 1409 | |
| 1410 #if defined (WEXITSTATUS) | |
| 1411 if (args.length () == 1) | |
| 1412 { | |
| 1413 int status = args(0).int_value (); | |
| 1414 | |
| 1415 if (! error_state) | |
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1416 retval = WEXITSTATUS (status); |
| 5453 | 1417 else |
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1418 error ("WEXITSTATUS: STATUS must be an integer"); |
| 5453 | 1419 } |
| 1420 #else | |
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1421 warning ("WEXITSTATUS always returns false in this version of Octave"); |
| 5453 | 1422 #endif |
| 1423 | |
| 1424 return retval; | |
| 1425 } | |
| 1426 | |
| 1427 DEFUNX ("WIFSIGNALED", FWIFSIGNALED, args, , | |
| 1428 "-*- texinfo -*-\n\ | |
| 1429 @deftypefn {Built-in Function} {} WIFSIGNALED (@var{status})\n\ | |
| 1430 Given @var{status} from a call to @code{waitpid}, return true if the\n\ | |
| 1431 child process was terminated by a signal.\n\ | |
| 1432 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED}\n\ | |
| 1433 @end deftypefn") | |
| 1434 { | |
| 1435 octave_value retval = 0.0; | |
| 1436 | |
| 1437 #if defined (WIFSIGNALED) | |
| 1438 if (args.length () == 1) | |
| 1439 { | |
| 1440 int status = args(0).int_value (); | |
| 1441 | |
| 1442 if (! error_state) | |
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1443 retval = WIFSIGNALED (status); |
| 5453 | 1444 else |
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1445 error ("WIFSIGNALED: STATUS must be an integer"); |
| 5453 | 1446 } |
| 1447 #else | |
| 5455 | 1448 warning ("WIFSIGNALED always returns false in this version of Octave"); |
| 5453 | 1449 #endif |
| 1450 | |
| 1451 return retval; | |
| 1452 } | |
| 1453 | |
| 1454 DEFUNX ("WTERMSIG", FWTERMSIG, args, , | |
| 1455 "-*- texinfo -*-\n\ | |
| 1456 @deftypefn {Built-in Function} {} WTERMSIG (@var{status})\n\ | |
| 1457 Given @var{status} from a call to @code{waitpid}, return the number of\n\ | |
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1458 the signal that caused the child process to terminate. This function\n\ |
| 5453 | 1459 should only be employed if @code{WIFSIGNALED} returned true.\n\ |
| 1460 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED}\n\ | |
| 1461 @end deftypefn") | |
| 1462 { | |
| 1463 octave_value retval = 0.0; | |
| 1464 | |
| 1465 #if defined (WTERMSIG) | |
| 1466 if (args.length () == 1) | |
| 1467 { | |
| 1468 int status = args(0).int_value (); | |
| 1469 | |
| 1470 if (! error_state) | |
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1471 retval = WTERMSIG (status); |
| 5453 | 1472 else |
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1473 error ("WTERMSIG: STATUS must be an integer"); |
| 5453 | 1474 } |
| 1475 #else | |
| 5455 | 1476 warning ("WTERMSIG always returns false in this version of Octave"); |
| 5453 | 1477 #endif |
| 1478 | |
| 1479 return retval; | |
| 1480 } | |
| 1481 | |
| 1482 DEFUNX ("WCOREDUMP", FWCOREDUMP, args, , | |
| 1483 "-*- texinfo -*-\n\ | |
| 1484 @deftypefn {Built-in Function} {} WCOREDUMP (@var{status})\n\ | |
| 1485 Given @var{status} from a call to @code{waitpid}, return true if the\n\ | |
| 1486 child produced a core dump. This function should only be employed if\n\ | |
| 1487 @code{WIFSIGNALED} returned true. The macro used to implement this\n\ | |
| 1488 function is not specified in POSIX.1-2001 and is not available on some\n\ | |
| 1489 Unix implementations (e.g., AIX, SunOS).\n\ | |
| 1490 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WIFSTOPPED, WSTOPSIG, WIFCONTINUED}\n\ | |
| 1491 @end deftypefn") | |
| 1492 { | |
| 1493 octave_value retval = 0.0; | |
| 1494 | |
| 1495 #if defined (WCOREDUMP) | |
| 1496 if (args.length () == 1) | |
| 1497 { | |
| 1498 int status = args(0).int_value (); | |
| 1499 | |
| 1500 if (! error_state) | |
|
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1501 retval = WCOREDUMP (status); |
| 5453 | 1502 else |
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1503 error ("WCOREDUMP: STATUS must be an integer"); |
| 5453 | 1504 } |
| 1505 #else | |
| 5455 | 1506 warning ("WCOREDUMP always returns false in this version of Octave"); |
| 5453 | 1507 #endif |
| 1508 | |
| 1509 return retval; | |
| 1510 } | |
| 1511 | |
| 1512 DEFUNX ("WIFSTOPPED", FWIFSTOPPED, args, , | |
| 1513 "-*- texinfo -*-\n\ | |
| 1514 @deftypefn {Built-in Function} {} WIFSTOPPED (@var{status})\n\ | |
| 1515 Given @var{status} from a call to @code{waitpid}, return true if the\n\ | |
| 1516 child process was stopped by delivery of a signal; this is only\n\ | |
| 1517 possible if the call was done using @code{WUNTRACED} or when the child\n\ | |
| 1518 is being traced (see ptrace(2)).\n\ | |
| 1519 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WSTOPSIG, WIFCONTINUED}\n\ | |
| 1520 @end deftypefn") | |
| 1521 { | |
| 1522 octave_value retval = 0.0; | |
| 1523 | |
| 1524 #if defined (WIFSTOPPED) | |
| 1525 if (args.length () == 1) | |
| 1526 { | |
| 1527 int status = args(0).int_value (); | |
| 1528 | |
| 1529 if (! error_state) | |
|
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1530 retval = WIFSTOPPED (status); |
| 5453 | 1531 else |
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1532 error ("WIFSTOPPED: STATUS must be an integer"); |
| 5453 | 1533 } |
| 1534 #else | |
| 5455 | 1535 warning ("WIFSTOPPED always returns false in this version of Octave"); |
| 5453 | 1536 #endif |
| 1537 | |
| 1538 return retval; | |
| 1539 } | |
| 1540 | |
| 1541 DEFUNX ("WSTOPSIG", FWSTOPSIG, args, , | |
| 1542 "-*- texinfo -*-\n\ | |
| 1543 @deftypefn {Built-in Function} {} WSTOPSIG (@var{status})\n\ | |
| 1544 Given @var{status} from a call to @code{waitpid}, return the number of\n\ | |
| 1545 the signal which caused the child to stop. This function should only\n\ | |
| 1546 be employed if @code{WIFSTOPPED} returned true.\n\ | |
| 1547 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WIFCONTINUED}\n\ | |
| 1548 @end deftypefn") | |
| 1549 { | |
| 1550 octave_value retval = 0.0; | |
| 1551 | |
| 1552 #if defined (WSTOPSIG) | |
| 1553 if (args.length () == 1) | |
| 1554 { | |
| 1555 int status = args(0).int_value (); | |
| 1556 | |
| 1557 if (! error_state) | |
|
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1558 retval = WSTOPSIG (status); |
| 5453 | 1559 else |
|
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1560 error ("WSTOPSIG: STATUS must be an integer"); |
| 5453 | 1561 } |
| 1562 #else | |
| 5455 | 1563 warning ("WSTOPSIG always returns false in this version of Octave"); |
| 5453 | 1564 #endif |
| 1565 | |
| 1566 return retval; | |
| 1567 } | |
| 1568 | |
| 1569 DEFUNX ("WIFCONTINUED", FWIFCONTINUED, args, , | |
| 1570 "-*- texinfo -*-\n\ | |
| 1571 @deftypefn {Built-in Function} {} WIFCONTINUED (@var{status})\n\ | |
| 1572 Given @var{status} from a call to @code{waitpid}, return true if the\n\ | |
| 1573 child process was resumed by delivery of @code{SIGCONT}.\n\ | |
| 1574 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG}\n\ | |
| 1575 @end deftypefn") | |
| 1576 { | |
| 1577 octave_value retval = 0.0; | |
| 1578 | |
| 1579 #if defined (WIFCONTINUED) | |
| 1580 if (args.length () == 1) | |
| 1581 { | |
| 1582 int status = args(0).int_value (); | |
| 1583 | |
| 1584 if (! error_state) | |
|
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1585 retval = WIFCONTINUED (status); |
| 5453 | 1586 else |
|
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1587 error ("WIFCONTINUED: STATUS must be an integer"); |
| 5453 | 1588 } |
| 1589 #else | |
| 5455 | 1590 warning ("WIFCONTINUED always returns false in this version of Octave"); |
| 5453 | 1591 #endif |
| 1592 | |
| 1593 return retval; | |
| 1594 } | |
| 1595 | |
|
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1596 DEFUNX ("canonicalize_file_name", Fcanonicalize_file_name, args, , |
| 5138 | 1597 "-*- texinfo -*-\n\ |
| 1598 @deftypefn {Built-in Function} {[@var{cname}, @var{status}, @var{msg}]} canonicalize_file_name (@var{name})\n\ | |
| 1599 Return the canonical name of file @var{name}.\n\ | |
| 1600 @end deftypefn") | |
| 1601 { | |
| 1602 octave_value_list retval; | |
| 1603 | |
| 1604 if (args.length () == 1) | |
| 1605 { | |
| 1606 std::string name = args(0).string_value (); | |
| 1607 | |
| 1608 if (! error_state) | |
|
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1609 { |
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1610 std::string msg; |
| 5138 | 1611 |
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1612 std::string result = octave_canonicalize_file_name (name, msg); |
| 5138 | 1613 |
|
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1614 retval(2) = msg; |
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1615 retval(1) = msg.empty () ? 0 : -1; |
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1616 retval(0) = result; |
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1617 } |
| 5138 | 1618 else |
|
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1619 error ("canonicalize_file_name: NAME must be a character string"); |
| 5138 | 1620 } |
| 1621 else | |
| 5823 | 1622 print_usage (); |
| 5138 | 1623 |
| 1624 return retval; | |
| 1625 } | |
| 1626 | |
| 5749 | 1627 static octave_value |
| 7924 | 1628 const_value (const octave_value_list& args, int val) |
| 5749 | 1629 { |
| 1630 octave_value retval; | |
| 1631 | |
| 1632 int nargin = args.length (); | |
| 1633 | |
| 1634 if (nargin == 0) | |
| 1635 retval = val; | |
| 1636 else | |
| 5823 | 1637 print_usage (); |
| 5749 | 1638 |
| 1639 return retval; | |
| 1640 } | |
| 1641 | |
| 2075 | 1642 #if !defined (O_NONBLOCK) && defined (O_NDELAY) |
| 1643 #define O_NONBLOCK O_NDELAY | |
| 1644 #endif | |
| 1645 | |
| 5749 | 1646 DEFUNX ("F_DUPFD", FF_DUPFD, args, , |
| 1647 "-*- texinfo -*-\n\ | |
| 1648 @deftypefn {Built-in Function} {} F_DUPFD ()\n\ | |
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1649 Return the numerical value to pass to @code{fcntl} to return a\n\ |
| 5749 | 1650 duplicate file descriptor.\n\ |
| 1651 @seealso{fcntl, F_GETFD, F_GETFL, F_SETFD, F_SETFL}\n\ | |
| 1652 @end deftypefn") | |
| 2075 | 1653 { |
|
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1654 #if defined (F_DUPFD) |
| 7924 | 1655 return const_value (args, F_DUPFD); |
|
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1656 #else |
|
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1657 error ("F_DUPFD: not available on this system"); |
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1658 return octave_value (); |
| 2075 | 1659 #endif |
|
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1660 } |
| 2075 | 1661 |
| 5749 | 1662 DEFUNX ("F_GETFD", FF_GETFD, args, , |
| 1663 "-*- texinfo -*-\n\ | |
| 1664 @deftypefn {Built-in Function} {} F_GETFD ()\n\ | |
|
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1665 Return the numerical value to pass to @code{fcntl} to return the\n\ |
| 5749 | 1666 file descriptor flags.\n\ |
| 5333 | 1667 @seealso{fcntl, F_DUPFD, F_GETFL, F_SETFD, F_SETFL}\n\ |
| 5749 | 1668 @end deftypefn") |
| 1669 { | |
|
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1670 #if defined (F_GETFD) |
| 7924 | 1671 return const_value (args, F_GETFD); |
|
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1672 #else |
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1673 error ("F_GETFD: not available on this system"); |
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1674 return octave_value (); |
| 2075 | 1675 #endif |
|
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1676 } |
| 2075 | 1677 |
| 5749 | 1678 DEFUNX ("F_GETFL", FF_GETFL, args, , |
| 1679 "-*- texinfo -*-\n\ | |
| 1680 @deftypefn {Built-in Function} {} F_GETFL ()\n\ | |
|
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1681 Return the numerical value to pass to @code{fcntl} to return the\n\ |
| 5749 | 1682 file status flags.\n\ |
| 5333 | 1683 @seealso{fcntl, F_DUPFD, F_GETFD, F_SETFD, F_SETFL}\n\ |
| 5749 | 1684 @end deftypefn") |
| 1685 { | |
|
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1686 #if defined (F_GETFL) |
| 7924 | 1687 return const_value (args, F_GETFL); |
|
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1688 #else |
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1689 error ("F_GETFL: not available on this system"); |
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1690 return octave_value (); |
| 2075 | 1691 #endif |
|
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1692 } |
| 2075 | 1693 |
| 5749 | 1694 DEFUNX ("F_SETFD", FF_SETFD, args, , |
| 1695 "-*- texinfo -*-\n\ | |
| 1696 @deftypefn {Built-in Function} {} F_SETFD ()\n\ | |
|
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1697 Return the numerical value to pass to @code{fcntl} to set the file\n\ |
| 5749 | 1698 descriptor flags.\n\ |
| 5333 | 1699 @seealso{fcntl, F_DUPFD, F_GETFD, F_GETFL, F_SETFL}\n\ |
| 5749 | 1700 @end deftypefn") |
| 1701 { | |
|
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1702 #if defined (F_SETFD) |
| 7924 | 1703 return const_value (args, F_SETFD); |
|
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1704 #else |
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1705 error ("F_SETFD: not available on this system"); |
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1706 return octave_value (); |
| 2075 | 1707 #endif |
|
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1708 } |
| 2075 | 1709 |
| 5749 | 1710 DEFUNX ("F_SETFL", FF_SETFL, args, , |
| 1711 "-*- texinfo -*-\n\ | |
| 1712 @deftypefn {Built-in Function} {} F_SETFL ()\n\ | |
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1713 Return the numerical value to pass to @code{fcntl} to set the file\n\ |
| 5749 | 1714 status flags.\n\ |
| 5333 | 1715 @seealso{fcntl, F_DUPFD, F_GETFD, F_GETFL, F_SETFD}\n\ |
| 5749 | 1716 @end deftypefn") |
| 1717 { | |
|
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1718 #if defined (F_SETFL) |
| 7924 | 1719 return const_value (args, F_SETFL); |
|
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1720 #else |
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1721 error ("F_SETFL: not available on this system"); |
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1722 return octave_value (); |
| 2075 | 1723 #endif |
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1724 } |
| 2075 | 1725 |
| 5749 | 1726 DEFUNX ("O_APPEND", FO_APPEND, args, , |
| 1727 "-*- texinfo -*-\n\ | |
| 1728 @deftypefn {Built-in Function} {} O_APPEND ()\n\ | |
| 1729 Return the numerical value of the file status flag that may be\n\ | |
| 1730 returned by @code{fcntl} to indicate each write operation appends,\n\ | |
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1731 or that may be passed to @code{fcntl} to set the write mode to append.\n\ |
| 5333 | 1732 @seealso{fcntl, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
| 5749 | 1733 @end deftypefn") |
| 1734 { | |
|
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1735 #if defined (O_APPEND) |
| 7924 | 1736 return const_value (args, O_APPEND); |
|
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1737 #else |
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1738 error ("O_APPEND: not available on this system"); |
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1739 return octave_value (); |
| 2075 | 1740 #endif |
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1741 } |
| 2075 | 1742 |
| 5749 | 1743 DEFUNX ("O_ASYNC", FO_ASYNC, args, , |
| 1744 "-*- texinfo -*-\n\ | |
| 1745 @deftypefn {Built-in Function} {} O_ASYNC ()\n\ | |
| 1746 Return the numerical value of the file status flag that may be\n\ | |
| 1747 returned by @code{fcntl} to indicate asynchronous I/O.\n\ | |
| 5333 | 1748 @seealso{fcntl, O_APPEND, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
| 5749 | 1749 @end deftypefn") |
| 1750 { | |
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1751 #if defined (O_ASYNC) |
| 7924 | 1752 return const_value (args, O_ASYNC); |
|
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1753 #else |
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1754 error ("O_ASYNC: not available on this system"); |
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1755 return octave_value (); |
| 2669 | 1756 #endif |
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1757 } |
| 2669 | 1758 |
| 5749 | 1759 DEFUNX ("O_CREAT", FO_CREAT, args, , |
| 1760 "-*- texinfo -*-\n\ | |
| 1761 @deftypefn {Built-in Function} {} O_CREAT ()\n\ | |
| 1762 Return the numerical value of the file status flag that may be\n\ | |
| 1763 returned by @code{fcntl} to indicate that a file should be\n\ | |
| 1764 created if it does not exist.\n\ | |
| 5333 | 1765 @seealso{fcntl, O_APPEND, O_ASYNC, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
| 5749 | 1766 @end deftypefn") |
| 1767 { | |
|
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1768 #if defined (O_CREAT) |
| 7924 | 1769 return const_value (args, O_CREAT); |
|
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1770 #else |
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1771 error ("O_CREAT: not available on this system"); |
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1772 return octave_value (); |
| 2075 | 1773 #endif |
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1774 } |
| 2075 | 1775 |
| 5749 | 1776 DEFUNX ("O_EXCL", FO_EXCL, args, , |
| 1777 "-*- texinfo -*-\n\ | |
| 1778 @deftypefn {Built-in Function} {} O_EXCL ()\n\ | |
| 1779 Return the numerical value of the file status flag that may be\n\ | |
| 1780 returned by @code{fcntl} to indicate that file locking is used.\n\ | |
| 5333 | 1781 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
| 5749 | 1782 @end deftypefn") |
| 1783 { | |
|
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1784 #if defined (O_EXCL) |
| 7924 | 1785 return const_value (args, O_EXCL); |
|
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1786 #else |
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1787 error ("O_EXCL: not available on this system"); |
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1788 return octave_value (); |
| 2075 | 1789 #endif |
|
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1790 } |
| 2075 | 1791 |
| 5749 | 1792 DEFUNX ("O_NONBLOCK", FO_NONBLOCK, args, , |
| 1793 "-*- texinfo -*-\n\ | |
| 1794 @deftypefn {Built-in Function} {} O_NONBLOCK ()\n\ | |
| 1795 Return the numerical value of the file status flag that may be\n\ | |
| 1796 returned by @code{fcntl} to indicate that non-blocking I/O is in use,\n\ | |
| 1797 or that may be passsed to @code{fcntl} to set non-blocking I/O.\n\ | |
| 5333 | 1798 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
| 5749 | 1799 @end deftypefn") |
| 1800 { | |
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1801 #if defined (O_NONBLOCK) |
| 7924 | 1802 return const_value (args, O_NONBLOCK); |
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1803 #else |
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1804 error ("O_NONBLOCK: not available on this system"); |
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1805 return octave_value (); |
| 2075 | 1806 #endif |
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1807 } |
| 2075 | 1808 |
| 5749 | 1809 DEFUNX ("O_RDONLY", FO_RDONLY, args, , |
| 1810 "-*- texinfo -*-\n\ | |
| 1811 @deftypefn {Built-in Function} {} O_RDONLY ()\n\ | |
| 1812 Return the numerical value of the file status flag that may be\n\ | |
| 1813 returned by @code{fcntl} to indicate that a file is open for\n\ | |
| 1814 reading only.\n\ | |
| 5333 | 1815 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
| 5749 | 1816 @end deftypefn") |
| 1817 { | |
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1818 #if defined (O_RDONLY) |
| 7924 | 1819 return const_value (args, O_RDONLY); |
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1820 #else |
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1821 error ("O_RDONLY: not available on this system"); |
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1822 return octave_value (); |
| 2075 | 1823 #endif |
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1824 } |
| 2075 | 1825 |
| 5749 | 1826 DEFUNX ("O_RDWR", FO_RDWR, args, , |
| 1827 "-*- texinfo -*-\n\ | |
| 1828 @deftypefn {Built-in Function} {} O_RDWR ()\n\ | |
| 1829 Return the numerical value of the file status flag that may be\n\ | |
| 1830 returned by @code{fcntl} to indicate that a file is open for both\n\ | |
| 1831 reading and writing.\n\ | |
| 5333 | 1832 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
| 5749 | 1833 @end deftypefn") |
| 1834 { | |
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1835 #if defined (O_RDWR) |
| 7924 | 1836 return const_value (args, O_RDWR); |
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1837 #else |
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1838 error ("O_RDWR: not available on this system"); |
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1839 return octave_value (); |
| 2075 | 1840 #endif |
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1841 } |
| 2075 | 1842 |
| 5749 | 1843 DEFUNX ("O_SYNC", FO_SYNC, args, , |
| 1844 "-*- texinfo -*-\n\ | |
| 1845 @deftypefn {Built-in Function} {} O_SYNC ()\n\ | |
| 1846 Return the numerical value of the file status flag that may be\n\ | |
| 1847 returned by @code{fcntl} to indicate that a file is open for\n\ | |
| 1848 synchronous I/O.\n\ | |
| 5333 | 1849 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_TRUNC, O_WRONLY}\n\ |
| 5749 | 1850 @end deftypefn") |
| 1851 { | |
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1852 #if defined (O_SYNC) |
| 7924 | 1853 return const_value (args, O_SYNC); |
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1854 #else |
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1855 error ("O_SYNC: not available on this system"); |
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1856 return octave_value (); |
| 2669 | 1857 #endif |
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1858 } |
| 2669 | 1859 |
| 5749 | 1860 DEFUNX ("O_TRUNC", FO_TRUNC, args, , |
| 1861 "-*- texinfo -*-\n\ | |
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1862 @deftypefn {Built-in Function} O_TRUNC ()\n\ |
| 5749 | 1863 Return the numerical value of the file status flag that may be\n\ |
| 1864 returned by @code{fcntl} to indicate that if file exists, it should\n\ | |
| 1865 be truncated when writing.\n\ | |
| 5333 | 1866 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_WRONLY}\n\ |
| 5749 | 1867 @end deftypefn") |
| 1868 { | |
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1869 #if defined (O_TRUNC) |
| 7924 | 1870 return const_value (args, O_TRUNC); |
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1871 #else |
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1872 error ("O_TRUNC: not available on this system"); |
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1873 return octave_value (); |
| 2075 | 1874 #endif |
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1875 } |
| 2075 | 1876 |
| 5749 | 1877 DEFUNX ("O_WRONLY", FO_WRONLY, args, , |
| 1878 "-*- texinfo -*-\n\ | |
| 1879 @deftypefn {Built-in Function} {} O_WRONLY ()\n\ | |
| 1880 Return the numerical value of the file status flag that may be\n\ | |
| 1881 returned by @code{fcntl} to indicate that a file is open for\n\ | |
| 1882 writing only.\n\ | |
| 5333 | 1883 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC}\n\ |
| 5749 | 1884 @end deftypefn") |
| 1885 { | |
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1886 #if defined (O_WRONLY) |
| 7924 | 1887 return const_value (args, O_WRONLY); |
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1888 #else |
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1889 error ("O_WRONLY: not available on this system"); |
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1890 return octave_value (); |
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1891 #endif |
| 5749 | 1892 } |
| 3446 | 1893 |
| 5453 | 1894 #if !defined (WNOHANG) |
| 1895 #define WNOHANG 0 | |
| 1896 #endif | |
| 1897 | |
| 5749 | 1898 DEFUNX ("WNOHANG", FWNOHANG, args, , |
| 1899 "-*- texinfo -*-\n\ | |
| 1900 @deftypefn {Built-in Function} {} WNOHANG ()\n\ | |
| 1901 Return the numerical value of the option argument that may be\n\ | |
| 1902 passed to @code{waitpid} to indicate that it should return its\n\ | |
| 1903 status immediately instead of waiting for a process to exit.\n\ | |
| 5453 | 1904 @seealso{waitpid, WUNTRACED, WCONTINUE}\n\ |
| 5749 | 1905 @end deftypefn") |
| 1906 { | |
| 7924 | 1907 return const_value (args, WNOHANG); |
| 5749 | 1908 } |
| 5453 | 1909 |
| 1910 #if !defined (WUNTRACED) | |
| 1911 #define WUNTRACED 0 | |
| 1912 #endif | |
| 1913 | |
| 5749 | 1914 DEFUNX ("WUNTRACED", FWUNTRACED, args, , |
| 1915 "-*- texinfo -*-\n\ | |
| 1916 @deftypefn {Built-in Function} {} WUNTRACED ()\n\ | |
| 1917 Return the numerical value of the option argument that may be\n\ | |
| 1918 passed to @code{waitpid} to indicate that it should also return\n\ | |
| 1919 if the child process has stopped but is not traced via the\n\ | |
| 1920 @code{ptrace} system call\n\ | |
| 5453 | 1921 @seealso{waitpid, WNOHANG, WCONTINUE}\n\ |
| 5749 | 1922 @end deftypefn") |
| 1923 { | |
| 7924 | 1924 return const_value (args, WUNTRACED); |
| 5749 | 1925 } |
| 5453 | 1926 |
| 1927 #if !defined (WCONTINUE) | |
| 1928 #define WCONTINUE 0 | |
| 1929 #endif | |
| 1930 | |
| 5749 | 1931 DEFUNX ("WCONTINUE", FWCONTINUE, args, , |
| 1932 "-*- texinfo -*-\n\ | |
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1933 @deftypefn {Built-in Function} {} WCONTINUE ()\n\ |
| 5749 | 1934 Return the numerical value of the option argument that may be\n\ |
| 1935 passed to @code{waitpid} to indicate that it should also return\n\ | |
| 1936 if a stopped child has been resumed by delivery of a @code{SIGCONT}\n\ | |
| 1937 signal.\n\ | |
| 5453 | 1938 @seealso{waitpid, WNOHANG, WUNTRACED}\n\ |
| 5749 | 1939 @end deftypefn") |
| 1940 { | |
| 7924 | 1941 return const_value (args, WCONTINUE); |
| 2075 | 1942 } |