annotate src/syscalls.cc @ 3202:44d82b369c78

[project @ 1998-10-29 20:27:57 by jwe]
author jwe
date Thu, 29 Oct 1998 20:28:02 +0000
parents a494f93e60ff
children 02866242d3ae
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1 /*
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2
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3 Copyright (C) 1996, 1997 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, write to the Free
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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20
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21 */
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22
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23 // Thomas Baier <baier@ci.tuwien.ac.at> added the original versions of
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24 // the following functions:
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25 //
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26 // mkfifo unlink waitpid
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27
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28 #ifdef HAVE_CONFIG_H
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29 #include <config.h>
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30 #endif
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31
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32 #include <cerrno>
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33 #include <cstdio>
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34 #include <cstring>
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35
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36 #ifdef HAVE_UNISTD_H
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37 #ifdef HAVE_SYS_TYPES_H
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38 #include <sys/types.h>
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39 #endif
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40 #include <unistd.h>
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41 #endif
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42
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43 #ifdef HAVE_FCNTL_H
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44 #include <fcntl.h>
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45 #endif
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46
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47 #include "file-ops.h"
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48 #include "file-stat.h"
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49 #include "oct-syscalls.h"
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50
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51 #include "defun.h"
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52 #include "error.h"
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53 #include "gripes.h"
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54 #include "lo-utils.h"
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55 #include "oct-map.h"
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56 #include "oct-obj.h"
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57 #include "oct-stdstrm.h"
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58 #include "oct-stream.h"
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59 #include "sysdep.h"
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60 #include "syswait.h"
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61 #include "utils.h"
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62 #include "variables.h"
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63
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64 static Octave_map
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65 mk_stat_map (const file_stat& fs)
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66 {
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67 Octave_map m;
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68
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69 m["dev"] = static_cast<double> (fs.dev ());
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70 m["ino"] = static_cast<double> (fs.ino ());
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71 m["modestr"] = fs.mode_as_string ();
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72 m["nlink"] = static_cast<double> (fs.nlink ());
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73 m["uid"] = static_cast<double> (fs.uid ());
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74 m["gid"] = static_cast<double> (fs.gid ());
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75 #if defined (HAVE_ST_RDEV)
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76 m["rdev"] = static_cast<double> (fs.rdev ());
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77 #endif
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78 m["size"] = static_cast<double> (fs.size ());
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79 m["atime"] = static_cast<double> (fs.atime ());
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80 m["mtime"] = static_cast<double> (fs.mtime ());
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81 m["ctime"] = static_cast<double> (fs.ctime ());
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82 #if defined (HAVE_ST_BLKSIZE)
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83 m["blksize"] = static_cast<double> (fs.blksize ());
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84 #endif
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85 #if defined (HAVE_ST_BLOCKS)
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86 m["blocks"] = static_cast<double> (fs.blocks ());
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87 #endif
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88
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89 return m;
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90 }
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91
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92 DEFUN (dup2, args, ,
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93 "[FID, MSG] = dup2 (OLD, NEW)\n\
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94 \n\
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95 Duplicate a file descriptor.\n\
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96 \n\
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97 If successful, FID is greater than zero and contains the new file ID.\n\
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98 Otherwise, FID is negative and MSG contains a system-dependent error message.")
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99 {
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100 octave_value_list retval;
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101
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102 retval(1) = string ();
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103 retval(0) = -1.0;
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104
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105 int nargin = args.length ();
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106
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107 if (nargin == 2)
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108 {
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109 octave_stream *old_stream = octave_stream_list::lookup (args(0));
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110 octave_stream *new_stream = octave_stream_list::lookup (args(1));
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111
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112 if (! error_state)
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113 {
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114 int i_old = old_stream->file_number ();
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115 int i_new = new_stream->file_number ();
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116
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117 if (i_old >= 0 && i_new >= 0)
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118 {
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119 string msg;
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120
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121 int status = octave_syscalls::dup2 (i_old, i_new, msg);
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122
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123 retval(0) = static_cast<double> (status);
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124 retval(1) = msg;
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125 }
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126 else
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127 error ("dup2: invalid file id");
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128 }
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129 else
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130 error ("dup2: invalid stream");
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131 }
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132 else
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133 print_usage ("dup2");
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134
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135 return retval;
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136 }
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137
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138 DEFUN (exec, args, ,
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139 "[STATUS, MSG] = exec (FILE, ARGS)\n\
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140 \n\
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141 Replace current process with a new process.\n\
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142 \n\
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143 If successful, exec does not return. If exec does return, status will\n\
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144 be nonzero, and MSG will contain a system-dependent error message.")
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145 {
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146 octave_value_list retval;
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147
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148 retval(1) = string ();
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149 retval(0) = -1.0;
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150
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151 int nargin = args.length ();
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152
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153 if (nargin == 1 || nargin == 2)
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154 {
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155 string exec_file = args(0).string_value ();
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156
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157 if (! error_state)
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158 {
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parents: 2926
diff changeset
159 string_vector exec_args;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
160
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
161 if (nargin == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
162 {
2937
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parents: 2926
diff changeset
163 string_vector tmp = args(1).all_strings ();
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
164
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
165 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
166 {
2937
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parents: 2926
diff changeset
167 int len = tmp.length ();
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
168
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
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parents: 2926
diff changeset
169 exec_args.resize (len + 1);
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
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parents:
diff changeset
170
2937
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parents: 2926
diff changeset
171 exec_args[0] = exec_file;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
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parents:
diff changeset
172
2937
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parents: 2926
diff changeset
173 for (int i = 0; i < len; i++)
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
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parents: 2926
diff changeset
174 exec_args[i+1] = tmp[i];
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
175 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
176 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
177 error ("exec: arguments must be strings");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
178 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
179 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
180 {
2937
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parents: 2926
diff changeset
181 exec_args.resize (1);
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
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parents:
diff changeset
182
2937
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parents: 2926
diff changeset
183 exec_args[0] = exec_file;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
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parents:
diff changeset
184 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
185
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
186 if (! error_state)
2669
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parents: 2475
diff changeset
187 {
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
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parents: 2926
diff changeset
188 string msg;
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
189
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
190 int status = octave_syscalls::execvp (exec_file, exec_args, msg);
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
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parents: 2475
diff changeset
191
2800
9aeba8e006a4 [project @ 1997-03-09 09:50:20 by jwe]
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parents: 2669
diff changeset
192 retval(0) = static_cast<double> (status);
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
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parents: 2926
diff changeset
193 retval(1) = msg;
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
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parents: 2475
diff changeset
194 }
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
195 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
196 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
197 error ("exec: first argument must be a string");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
198 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
199 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
200 print_usage ("exec");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
201
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
202 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
203 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
204
2457
5be3f6f5986a [project @ 1996-11-03 02:54:44 by jwe]
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parents: 2442
diff changeset
205 DEFUN (fcntl, args, ,
2669
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parents: 2475
diff changeset
206 "[STATUS, MSG] = fcntl (FID, REQUEST, ARGUMENT)\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
207 \n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
208 Control open file descriptors.\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
209 \n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
210 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
211 STATUS is nonzero and MSG contains a system-dependent error message.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
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parents:
diff changeset
212 {
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
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parents: 2475
diff changeset
213 octave_value_list retval;
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
214
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
215 retval(1) = string ();
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
216 retval(0) = -1.0;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
217
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
218 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
219
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
220 if (nargin == 3)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
221 {
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
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parents: 3156
diff changeset
222 int fid = args(0).int_value (true);
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
223 int req = args(1).int_value (true);
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
224 int arg = args(2).int_value (true);
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
225
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
226 if (! error_state)
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
227 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
228 // XXX FIXME XXX -- Need better checking here?
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
229 if (fid < 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
230 error ("fcntl: invalid file id");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
231 else
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
232 {
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
233 string msg;
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
234
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
235 int status = octave_syscalls::fcntl (fid, req, arg, msg);
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
236
2800
9aeba8e006a4 [project @ 1997-03-09 09:50:20 by jwe]
jwe
parents: 2669
diff changeset
237 retval(0) = static_cast<double> (status);
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
238 retval(1) = msg;
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
239 }
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
240 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
241 else
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
242 error ("fcntl: file id, request, and argument must be integers");
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
243 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
244 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
245 print_usage ("fcntl");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
246
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
247 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
248 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
249
2457
5be3f6f5986a [project @ 1996-11-03 02:54:44 by jwe]
jwe
parents: 2442
diff changeset
250 DEFUN (fork, args, ,
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
251 "[PID, MSG] = fork ()\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
252 \n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
253 Create a copy of the current process.\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
254 \n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
255 If successful, PID is either the process ID and you are in the parent,\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
256 or 0, and you are in the child. If PID is less than zero, an error\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
257 has occured, and MSG contains a system-dependent error message.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
258 {
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
259 octave_value_list retval;
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
260
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
261 retval(1) = string ();
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
262 retval(0) = -1.0;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
263
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
264 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
265
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
266 if (nargin == 0)
2475
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
267 {
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
268 string msg;
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
269
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
270 pid_t pid = octave_syscalls::fork (msg);
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
271
2800
9aeba8e006a4 [project @ 1997-03-09 09:50:20 by jwe]
jwe
parents: 2669
diff changeset
272 retval(0) = static_cast<double> (pid);
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
273 retval(1) = msg;
2475
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
274 }
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
275 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
276 print_usage ("fork");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
277
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
278 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
279 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
280
2457
5be3f6f5986a [project @ 1996-11-03 02:54:44 by jwe]
jwe
parents: 2442
diff changeset
281 DEFUN (getpgrp, args, ,
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
282 "pgid = getpgrp (): return the process group id of the current process")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
283 {
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
284 octave_value_list retval;
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
285
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
286 retval(1) = string ();
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
287 retval(0) = -1.0;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
288
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
289 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
290
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
291 if (nargin == 0)
2475
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
292 {
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
293 string msg;
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
294
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
295 retval(0) = static_cast<double> (octave_syscalls::getpgrp (msg));
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
296 retval(1) = msg;
2475
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
297 }
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
298 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
299 print_usage ("getpgrp");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
300
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
301 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
302 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
303
2457
5be3f6f5986a [project @ 1996-11-03 02:54:44 by jwe]
jwe
parents: 2442
diff changeset
304 DEFUN (getpid, args, ,
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
305 "pid = getpid (): return the process id of the current process")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
306 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
307 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
308
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
309 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
310
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
311 if (nargin == 0)
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
312 retval = octave_syscalls::getpid ();
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
313 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
314 print_usage ("getpid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
315
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
316 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
317 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
318
2457
5be3f6f5986a [project @ 1996-11-03 02:54:44 by jwe]
jwe
parents: 2442
diff changeset
319 DEFUN (getppid, args, ,
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
320 "pid = getppid (): return the process id of the parent process")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
321 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
322 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
323
2475
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
324 int nargin = args.length ();
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
325
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
326 if (nargin == 0)
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
327 retval = octave_syscalls::getppid ();
2475
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
328 else
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
329 print_usage ("getppid");
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
330
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
331 return retval;
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
332 }
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
333
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
334 DEFUN (getegid, args, ,
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
335 "gid = getegid (): return the effective group id of the current process")
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
336 {
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
337 double retval = -1.0;
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
338
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
339 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
340
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
341 if (nargin == 0)
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
342 retval = octave_syscalls::getegid ();
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
343 else
2475
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
344 print_usage ("getegid");
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
345
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
346 return retval;
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
347 }
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
348
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
349 DEFUN (getgid, args, ,
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
350 "gid = getgid (): return the real group id of the current process")
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
351 {
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
352 double retval = -1.0;
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
353
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
354 int nargin = args.length ();
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
355
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
356 if (nargin == 0)
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
357 retval = octave_syscalls::getgid ();
2475
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
358 else
1d7925d6bede [project @ 1996-11-07 04:36:00 by jwe]
jwe
parents: 2473
diff changeset
359 print_usage ("getgid");
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
360
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
361 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
362 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
363
2473
bb0c213e5885 [project @ 1996-11-06 04:34:55 by jwe]
jwe
parents: 2472
diff changeset
364 DEFUN (geteuid, args, ,
2472
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
365 "uid = geteuid (): return the effective user id of the current process")
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
366 {
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
367 double retval = -1.0;
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
368
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
369 int nargin = args.length ();
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
370
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
371 if (nargin == 0)
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
372 retval = octave_syscalls::geteuid ();
2472
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
373 else
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
374 print_usage ("geteuid");
2473
bb0c213e5885 [project @ 1996-11-06 04:34:55 by jwe]
jwe
parents: 2472
diff changeset
375
bb0c213e5885 [project @ 1996-11-06 04:34:55 by jwe]
jwe
parents: 2472
diff changeset
376 return retval;
2472
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
377 }
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
378
2473
bb0c213e5885 [project @ 1996-11-06 04:34:55 by jwe]
jwe
parents: 2472
diff changeset
379 DEFUN (getuid, args, ,
2472
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
380 "uid = getuid (): return the real user id of the current process")
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
381 {
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
382 double retval = -1.0;
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
383
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
384 int nargin = args.length ();
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
385
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
386 if (nargin == 0)
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
387 retval = octave_syscalls::getuid ();
2472
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
388 else
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
389 print_usage ("getuid");
2473
bb0c213e5885 [project @ 1996-11-06 04:34:55 by jwe]
jwe
parents: 2472
diff changeset
390
bb0c213e5885 [project @ 1996-11-06 04:34:55 by jwe]
jwe
parents: 2472
diff changeset
391 return retval;
2472
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
392 }
0c788e9b53b8 [project @ 1996-11-06 04:10:07 by jwe]
jwe
parents: 2457
diff changeset
393
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
394 DEFUN (lstat, args, ,
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
395 "[S, ERR, MSG] = lstat (NAME)\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
396 \n\
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
397 Like [S, ERR, MSG] = stat (NAME), but if NAME refers to a symbolic\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
398 link, returns information about the link itself, not the file that it\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
399 points to.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
400 {
2263
dafbde8087e6 [project @ 1996-05-23 18:44:40 by jwe]
jwe
parents: 2262
diff changeset
401 octave_value_list retval;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
402
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
403 if (args.length () == 1)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
404 {
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2902
diff changeset
405 string fname = file_ops::tilde_expand (args(0).string_value ());
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
406
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
407 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
408 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
409 file_stat fs (fname, false);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
410
2263
dafbde8087e6 [project @ 1996-05-23 18:44:40 by jwe]
jwe
parents: 2262
diff changeset
411 if (fs)
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
412 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
413 retval(2) = string ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
414 retval(1) = 0.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
415 retval(0) = octave_value (mk_stat_map (fs));
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
416 }
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
417 else
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
418 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
419 retval(2) = fs.error ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
420 retval(1) = -1.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
421 retval(0) = Matrix ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
422 }
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
423 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
424 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
425 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
426 print_usage ("lstat");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
427
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
428 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
429 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
430
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
431 DEFUN (mkfifo, args, ,
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
432 "[STATUS, MSG] = mkfifo (NAME, MODE)\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
433 \n\
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
434 Create a FIFO special file named NAME with file mode MODE\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
435 \n\
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
436 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
437 STATUS is nonzero and MSG contains a system-dependent error message.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
438 {
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
439 octave_value_list retval;
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
440
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
441 retval(1) = string ();
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
442 retval(0) = -1.0;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
443
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
444 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
445
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
446 if (nargin == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
447 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
448 if (args(0).is_string ())
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
449 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
450 string name = args(0).string_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
451
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
452 if (args(1).is_scalar_type ())
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
453 {
2800
9aeba8e006a4 [project @ 1997-03-09 09:50:20 by jwe]
jwe
parents: 2669
diff changeset
454 long mode = static_cast<long> (args(1).double_value ());
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
455
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
456 string msg;
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
457
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2902
diff changeset
458 int status = file_ops::mkfifo (name, mode, msg);
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
459
2800
9aeba8e006a4 [project @ 1997-03-09 09:50:20 by jwe]
jwe
parents: 2669
diff changeset
460 retval(0) = static_cast<double> (status);
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
461
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
462 if (status < 0)
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
463 retval(1) = msg;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
464 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
465 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
466 error ("mkfifo: MODE must be an integer");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
467 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
468 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
469 error ("mkfifo: file name must be a string");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
470 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
471 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
472 print_usage ("mkfifo");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
473
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
474 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
475 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
476
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
477 DEFUN (pipe, args, ,
2902
c5b7a019b9ed [project @ 1997-04-30 03:46:53 by jwe]
jwe
parents: 2847
diff changeset
478 "[FILE_LIST, STATUS, MSG] = pipe (): create an interprocess channel.\n\
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
479 \n\
2902
c5b7a019b9ed [project @ 1997-04-30 03:46:53 by jwe]
jwe
parents: 2847
diff changeset
480 Return the file objects corresponding to the reading and writing ends of\n\
c5b7a019b9ed [project @ 1997-04-30 03:46:53 by jwe]
jwe
parents: 2847
diff changeset
481 the pipe, as a two-element list.\n\
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
482 \n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
483 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
484 STATUS is nonzero and MSG contains a system-dependent error message.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
485 {
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
486 octave_value_list retval;
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
487
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
488 retval(2) = string ();
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
489 retval(1) = -1.0;
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
490 retval(0) = Matrix ();
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
491
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
492 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
493
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
494 if (nargin == 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
495 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
496 int fid[2];
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
497
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
498 string msg;
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
499
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
500 int status = octave_syscalls::pipe (fid, msg);
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
501
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
502 if (status < 0)
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
503 retval(2) = msg;
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
504 else
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
505 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
506 FILE *in_file = fdopen (fid[0], "r");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
507 FILE *out_file = fdopen (fid[1], "w");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
508
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
509 octave_istdiostream *is
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
510 = new octave_istdiostream (string (), in_file);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
511
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
512 octave_ostdiostream *os
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
513 = new octave_ostdiostream (string (), out_file);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
514
2902
c5b7a019b9ed [project @ 1997-04-30 03:46:53 by jwe]
jwe
parents: 2847
diff changeset
515 octave_value_list file_ids;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
516
2902
c5b7a019b9ed [project @ 1997-04-30 03:46:53 by jwe]
jwe
parents: 2847
diff changeset
517 file_ids(1) = octave_stream_list::insert (os);
c5b7a019b9ed [project @ 1997-04-30 03:46:53 by jwe]
jwe
parents: 2847
diff changeset
518 file_ids(0) = octave_stream_list::insert (is);
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
519
2800
9aeba8e006a4 [project @ 1997-03-09 09:50:20 by jwe]
jwe
parents: 2669
diff changeset
520 retval(1) = static_cast<double> (status);
2902
c5b7a019b9ed [project @ 1997-04-30 03:46:53 by jwe]
jwe
parents: 2847
diff changeset
521 retval(0) = octave_value (file_ids);
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
522 }
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
523 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
524 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
525 print_usage ("pipe");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
526
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
527 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
528 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
529
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
530 DEFUN (stat, args, ,
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
531 "[S, ERR, MSG] = stat (NAME)\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
532 \n\
2802
bca5fbab2e52 [project @ 1997-03-09 11:02:27 by jwe]
jwe
parents: 2800
diff changeset
533 Given the name of a file, return a structure S with the following\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
534 elements:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
535 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
536 dev : id of device containing a directory entry for this file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
537 ino : file number of the file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
538 modestr : file mode, as a string of ten letters or dashes as in ls -l\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
539 nlink : number of links\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
540 uid : user id of file's owner\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
541 gid : group id of file's group \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
542 rdev : id of device for block or character special files\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
543 size : size in bytes\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
544 atime : time of last access\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
545 mtime : time of last modification\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
546 ctime : time of last file status change\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
547 blksize : size of blocks in the file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
548 blocks : number of blocks allocated for file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
549 \n\
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
550 If the call is successful, ERR is 0 and MSG is an empty string.\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
551 \n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
552 If the file does not exist, or some other error occurs, S is an\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
553 empty matrix, ERR is -1, and MSG contains the corresponding\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
554 system error message.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
555 {
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
556 octave_value_list retval;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
557
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
558 if (args.length () == 1)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
559 {
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2902
diff changeset
560 string fname = file_ops::tilde_expand (args(0).string_value ());
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
561
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
562 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
563 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
564 file_stat fs (fname);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
565
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
566 if (fs)
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
567 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
568 retval(2) = string ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
569 retval(1) = 0.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
570 retval(0) = octave_value (mk_stat_map (fs));
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
571 }
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
572 else
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
573 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
574 retval(2) = fs.error ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
575 retval(1) = -1.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
576 retval(0) = Matrix ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
577 }
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
578 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
579 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
580 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
581 print_usage ("stat");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
582
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
583 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
584 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
585
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
586 DEFUN (unlink, args, ,
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
587 "[STATUS, MSG] = unlink (NAME)\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
588 \n\
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
589 Delete the file NAME\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
590 \n\
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
591 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
592 STATUS is nonzero and MSG contains a system-dependent error message.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
593 {
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
594 octave_value_list retval;
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
595
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
596 retval(1) = string ();
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
597 retval(0) = -1.0;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
598
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
599 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
600
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
601 if (nargin == 1)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
602 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
603 if (args(0).is_string ())
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
604 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
605 string name = args(0).string_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
606
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
607 string msg;
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
608
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2902
diff changeset
609 int status = file_ops::unlink (name, msg);
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
610
2800
9aeba8e006a4 [project @ 1997-03-09 09:50:20 by jwe]
jwe
parents: 2669
diff changeset
611 retval(0) = static_cast<double> (status);
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
612 retval(1) = msg;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
613 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
614 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
615 error ("unlink: file name must be a string");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
616 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
617 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
618 print_usage ("unlink");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
619
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
620 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
621 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
622
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
623 DEFUN (waitpid, args, ,
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
624 "[PID, MSG] = waitpid (PID, OPTIONS)\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
625 \n\
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
626 Wait for process PID to terminate\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
627 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
628 PID can be:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
629 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
630 -1 : wait for any child process\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
631 0 : wait for any child process whose process group ID is equal to\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
632 that of the Octave interpreter process.\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
633 > 0 : wait for termination of the child process with ID PID.\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
634 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
635 OPTIONS is:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
636 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
637 0 : wait until signal is received or a child process exits (this\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
638 is the default if the OPTIONS argument is missing) \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
639 1 : do not hang if status is not immediately available\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
640 2 : report the status of any child processes that are\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
641 stopped, and whose status has not yet been reported\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
642 since they stopped\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
643 3 : implies both 1 and 2\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
644 \n\
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
645 If successful, PID is greater than 0 and contains the process ID of\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
646 the child process that exited and MSG is an empty string.\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
647 Otherwise, PID is less than zero and MSG contains a system-dependent\n\
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
648 error message.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
649 {
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
650 octave_value_list retval;
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
651
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
652 retval(1) = string ();
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
653 retval(0) = -1.0;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
654
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
655 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
656
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
657 if (nargin == 1 || nargin == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
658 {
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
659 pid_t pid = args(0).int_value (true);
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
660
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
661 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
662 {
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
663 int options = 0;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
664
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
665 if (args.length () == 2)
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
666 {
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
667 options = args(1).int_value (true);
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
668
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
669 if (! error_state)
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
670 {
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
671 if (options < 0 || options > 3)
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
672 error ("waitpid: invalid OPTIONS value specified");
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
673 }
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
674 else
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
675 error ("waitpid: OPTIONS must be in integer");
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
676 }
2937
9d26524e2869 [project @ 1997-05-06 05:49:53 by jwe]
jwe
parents: 2926
diff changeset
677
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
678 if (! error_state)
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
679 {
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
680 string msg;
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
681
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
682 pid_t status = octave_syscalls::waitpid (pid, options, msg);
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
683
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
684 retval(0) = static_cast<double> (status);
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
685 retval(1) = msg;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
686 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
687 }
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
688 else
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3156
diff changeset
689 error ("waitpid: PID must be an integer value");
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
690 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
691 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
692 print_usage ("waitpid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
693
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
694 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
695 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
696
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
697 #if !defined (O_NONBLOCK) && defined (O_NDELAY)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
698 #define O_NONBLOCK O_NDELAY
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
699 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
700
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
701 void
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
702 symbols_of_syscalls (void)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
703 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
704 #if defined (F_DUPFD)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
705 DEFCONST (F_DUPFD, static_cast<double> (F_DUPFD),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
706 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
707 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
708
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
709 #if defined (F_GETFD)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
710 DEFCONST (F_GETFD, static_cast<double> (F_GETFD),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
711 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
712 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
713
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
714 #if defined (F_GETFL)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
715 DEFCONST (F_GETFL, static_cast<double> (F_GETFL),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
716 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
717 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
718
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
719 #if defined (F_SETFD)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
720 DEFCONST (F_SETFD, static_cast<double> (F_SETFD),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
721 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
722 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
723
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
724 #if defined (F_SETFL)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
725 DEFCONST (F_SETFL, static_cast<double> (F_SETFL),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
726 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
727 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
728
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
729 #if defined (O_APPEND)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
730 DEFCONST (O_APPEND, static_cast<double> (O_APPEND),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
731 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
732 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
733
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
734 #if defined (O_ASYNC)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
735 DEFCONST (O_ASYNC, static_cast<double> (O_ASYNC),
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
736 "");
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
737 #endif
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
738
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
739 #if defined (O_CREAT)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
740 DEFCONST (O_CREAT, static_cast<double> (O_CREAT),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
741 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
742 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
743
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
744 #if defined (O_EXCL)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
745 DEFCONST (O_EXCL, static_cast<double> (O_EXCL),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
746 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
747 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
748
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
749 #if defined (O_NONBLOCK)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
750 DEFCONST (O_NONBLOCK, static_cast<double> (O_NONBLOCK),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
751 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
752 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
753
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
754 #if defined (O_RDONLY)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
755 DEFCONST (O_RDONLY, static_cast<double> (O_RDONLY),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
756 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
757 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
758
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
759 #if defined (O_RDWR)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
760 DEFCONST (O_RDWR, static_cast<double> (O_RDWR),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
761 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
762 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
763
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
764 #if defined (O_SYNC)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
765 DEFCONST (O_SYNC, static_cast<double> (O_SYNC),
2669
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
766 "");
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
767 #endif
c821858188b6 [project @ 1997-02-13 18:25:39 by jwe]
jwe
parents: 2475
diff changeset
768
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
769 #if defined (O_TRUNC)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
770 DEFCONST (O_TRUNC, static_cast<double> (O_TRUNC),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
771 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
772 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
773
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
774 #if defined (O_WRONLY)
3141
292ff0bf484b [project @ 1998-02-03 08:11:07 by jwe]
jwe
parents: 3014
diff changeset
775 DEFCONST (O_WRONLY, static_cast<double> (O_WRONLY),
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
776 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
777 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
778 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
779
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
780 /*
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
781 ;;; Local Variables: ***
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
782 ;;; mode: C++ ***
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
783 ;;; End: ***
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
784 */