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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 |
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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 // Thomas Baier <baier@ci.tuwien.ac.at> added the original versions of |
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25 // the following functions: |
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26 // |
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27 // mkfifo unlink waitpid |
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28 |
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29 #ifdef HAVE_CONFIG_H |
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30 #include <config.h> |
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31 #endif |
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32 |
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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.assign ("dev", static_cast<double> (fs.dev ())); |
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70 m.assign ("ino", fs.ino ()); |
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71 m.assign ("modestr", fs.mode_as_string ()); |
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72 m.assign ("nlink", fs.nlink ()); |
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73 m.assign ("uid", fs.uid ()); |
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74 m.assign ("gid", fs.gid ()); |
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75 #if defined (HAVE_STRUCT_STAT_ST_RDEV) |
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76 m.assign ("rdev", static_cast<double> (fs.rdev ())); |
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77 #endif |
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78 m.assign ("size", fs.size ()); |
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79 m.assign ("atime", fs.atime ()); |
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80 m.assign ("mtime", fs.mtime ()); |
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81 m.assign ("ctime", fs.ctime ()); |
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82 #if defined (HAVE_STRUCT_STAT_ST_BLKSIZE) |
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83 m.assign ("blksize", fs.blksize ()); |
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84 #endif |
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85 #if defined (HAVE_STRUCT_STAT_ST_BLOCKS) |
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86 m.assign ("blocks", 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 "-*- texinfo -*-\n\ |
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94 @deftypefn {Built-in Function} {[@var{fid}, @var{msg}] =} dup2 (@var{old}, @var{new})\n\ |
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95 Duplicate a file descriptor.\n\ |
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96 \n\ |
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97 If successful, @var{fid} is greater than zero and contains the new file\n\ |
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98 ID. Otherwise, @var{fid} is negative and @var{msg} contains a\n\ |
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99 system-dependent error message.\n\ |
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100 @end deftypefn") |
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101 { |
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102 octave_value_list retval; |
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103 |
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104 retval(1) = std::string (); |
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105 retval(0) = -1; |
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106 |
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107 int nargin = args.length (); |
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108 |
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109 if (nargin == 2) |
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110 { |
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111 octave_stream old_stream |
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112 = octave_stream_list::lookup (args(0), "dup2"); |
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113 |
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114 if (! error_state) |
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115 { |
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116 octave_stream new_stream |
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117 = octave_stream_list::lookup (args(1), "dup2"); |
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118 |
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119 if (! error_state) |
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120 { |
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121 int i_old = old_stream.file_number (); |
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122 int i_new = new_stream.file_number (); |
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123 |
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124 if (i_old >= 0 && i_new >= 0) |
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125 { |
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126 std::string msg; |
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127 |
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128 int status = octave_syscalls::dup2 (i_old, i_new, msg); |
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129 |
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130 retval(0) = status; |
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131 retval(1) = msg; |
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132 } |
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133 } |
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134 } |
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135 else |
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136 error ("dup2: invalid stream"); |
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137 } |
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138 else |
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139 print_usage ("dup2"); |
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140 |
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141 return retval; |
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142 } |
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143 |
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144 DEFUN (exec, args, , |
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145 "-*- texinfo -*-\n\ |
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146 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} exec (@var{file}, @var{args})\n\ |
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147 Replace current process with a new process. Calling @code{exec} without\n\ |
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148 first calling @code{fork} will terminate your current Octave process and\n\ |
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149 replace it with the program named by @var{file}. For example,\n\ |
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150 \n\ |
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151 @example\n\ |
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152 exec (\"ls\" \"-l\")\n\ |
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153 @end example\n\ |
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154 \n\ |
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155 @noindent\n\ |
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156 will run @code{ls} and return you to your shell prompt.\n\ |
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157 \n\ |
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158 If successful, @code{exec} does not return. If @code{exec} does return,\n\ |
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159 @var{err} will be nonzero, and @var{msg} will contain a system-dependent\n\ |
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160 error message.\n\ |
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161 @end deftypefn") |
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162 { |
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163 octave_value_list retval; |
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164 |
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165 retval(1) = std::string (); |
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166 retval(0) = -1; |
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167 |
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168 int nargin = args.length (); |
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169 |
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170 if (nargin == 1 || nargin == 2) |
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171 { |
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172 std::string exec_file = args(0).string_value (); |
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173 |
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174 if (! error_state) |
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175 { |
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176 string_vector exec_args; |
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177 |
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178 if (nargin == 2) |
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179 { |
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180 string_vector tmp = args(1).all_strings (); |
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181 |
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182 if (! error_state) |
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183 { |
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184 int len = tmp.length (); |
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185 |
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186 exec_args.resize (len + 1); |
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187 |
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188 exec_args[0] = exec_file; |
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189 |
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190 for (int i = 0; i < len; i++) |
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191 exec_args[i+1] = tmp[i]; |
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192 } |
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193 else |
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194 error ("exec: arguments must be character strings"); |
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195 } |
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196 else |
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197 { |
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198 exec_args.resize (1); |
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199 |
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200 exec_args[0] = exec_file; |
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201 } |
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202 |
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203 if (! error_state) |
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204 { |
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205 std::string msg; |
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206 |
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207 int status = octave_syscalls::execvp (exec_file, exec_args, msg); |
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208 |
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209 retval(0) = status; |
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210 retval(1) = msg; |
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211 } |
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212 } |
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213 else |
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214 error ("exec: first argument must be a string"); |
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215 } |
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216 else |
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217 print_usage ("exec"); |
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218 |
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219 return retval; |
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220 } |
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221 |
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222 DEFUN (fcntl, args, , |
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223 "-*- texinfo -*-\n\ |
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224 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} fcntl (@var{fid}, @var{request}, @var{arg})\n\ |
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225 Change the properties of the open file @var{fid}. The following values\n\ |
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226 may be passed as @var{request}:\n\ |
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227 \n\ |
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228 @vtable @code\n\ |
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229 @item F_DUPFD\n\ |
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230 Return a duplicate file descriptor.\n\ |
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231 \n\ |
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232 @item F_GETFD\n\ |
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233 Return the file descriptor flags for @var{fid}.\n\ |
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234 \n\ |
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235 @item F_SETFD\n\ |
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236 Set the file descriptor flags for @var{fid}.\n\ |
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237 \n\ |
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238 @item F_GETFL\n\ |
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239 Return the file status flags for @var{fid}. The following codes may be\n\ |
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240 returned (some of the flags may be undefined on some systems).\n\ |
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241 \n\ |
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242 @vtable @code\n\ |
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243 @item O_RDONLY\n\ |
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244 Open for reading only.\n\ |
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245 \n\ |
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246 @item O_WRONLY\n\ |
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247 Open for writing only.\n\ |
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248 \n\ |
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249 @item O_RDWR\n\ |
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250 Open for reading and writing.\n\ |
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251 \n\ |
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252 @item O_APPEND\n\ |
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253 Append on each write.\n\ |
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254 \n\ |
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255 @item O_CREAT\n\ |
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256 Create the file if it does not exist.\n\ |
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257 \n\ |
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258 @item O_NONBLOCK\n\ |
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259 Nonblocking mode.\n\ |
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260 \n\ |
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261 @item O_SYNC\n\ |
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262 Wait for writes to complete.\n\ |
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263 \n\ |
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264 @item O_ASYNC\n\ |
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265 Asynchronous I/O.\n\ |
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266 @end vtable\n\ |
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267 \n\ |
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268 @item F_SETFL\n\ |
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269 Set the file status flags for @var{fid} to the value specified by\n\ |
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270 @var{arg}. The only flags that can be changed are @code{O_APPEND} and\n\ |
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271 @code{O_NONBLOCK}.\n\ |
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272 @end vtable\n\ |
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273 \n\ |
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274 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
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275 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ |
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276 system-dependent error message.\n\ |
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277 @end deftypefn") |
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278 { |
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279 octave_value_list retval; |
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280 |
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281 retval(1) = std::string (); |
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282 retval(0) = -1; |
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283 |
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284 int nargin = args.length (); |
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285 |
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286 if (nargin == 3) |
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287 { |
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288 octave_stream strm = octave_stream_list::lookup (args (0), "fcntl"); |
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289 |
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290 if (! error_state) |
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291 { |
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292 int fid = strm.file_number (); |
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293 |
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294 int req = args(1).int_value (true); |
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295 int arg = args(2).int_value (true); |
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296 |
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297 if (! error_state) |
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298 { |
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299 // XXX FIXME XXX -- Need better checking here? |
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300 if (fid < 0) |
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301 error ("fcntl: invalid file id"); |
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302 else |
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303 { |
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304 std::string msg; |
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305 |
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306 int status = octave_syscalls::fcntl (fid, req, arg, msg); |
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307 |
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308 retval(0) = status; |
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309 retval(1) = msg; |
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310 } |
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311 } |
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312 } |
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313 else |
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314 error ("fcntl: file id, request, and argument must be integers"); |
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315 } |
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316 else |
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317 print_usage ("fcntl"); |
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318 |
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319 return retval; |
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320 } |
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321 |
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322 DEFUN (fork, args, , |
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323 "-*- texinfo -*-\n\ |
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324 @deftypefn {Built-in Function} {[@var{pid}, @var{msg}] =} fork ()\n\ |
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325 Create a copy of the current process.\n\ |
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326 \n\ |
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327 Fork can return one of the following values:\n\ |
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328 \n\ |
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329 @table @asis\n\ |
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330 @item > 0\n\ |
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331 You are in the parent process. The value returned from @code{fork} is\n\ |
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332 the process id of the child process. You should probably arrange to\n\ |
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333 wait for any child processes to exit.\n\ |
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334 \n\ |
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335 @item 0\n\ |
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336 You are in the child process. You can call @code{exec} to start another\n\ |
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337 process. If that fails, you should probably call @code{exit}.\n\ |
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338 \n\ |
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339 @item < 0\n\ |
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340 The call to @code{fork} failed for some reason. You must take evasive\n\ |
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341 action. A system dependent error message will be waiting in @var{msg}.\n\ |
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342 @end table\n\ |
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343 @end deftypefn") |
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344 { |
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345 octave_value_list retval; |
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346 |
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347 retval(1) = std::string (); |
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348 retval(0) = -1; |
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349 |
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350 int nargin = args.length (); |
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351 |
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352 if (nargin == 0) |
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353 { |
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354 std::string msg; |
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355 |
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356 pid_t pid = octave_syscalls::fork (msg); |
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357 |
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358 retval(0) = pid; |
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359 retval(1) = msg; |
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360 } |
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361 else |
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362 print_usage ("fork"); |
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363 |
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364 return retval; |
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365 } |
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366 |
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367 DEFUN (getpgrp, args, , |
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368 "-*- texinfo -*-\n\ |
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369 @deftypefn {Built-in Function} {pgid =} getpgrp ()\n\ |
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370 Return the process group id of the current process.\n\ |
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371 @end deftypefn") |
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372 { |
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373 octave_value_list retval; |
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374 |
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375 retval(1) = std::string (); |
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376 retval(0) = -1; |
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377 |
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378 int nargin = args.length (); |
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379 |
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380 if (nargin == 0) |
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381 { |
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382 std::string msg; |
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383 |
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384 retval(0) = octave_syscalls::getpgrp (msg); |
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385 retval(1) = msg; |
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386 } |
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387 else |
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388 print_usage ("getpgrp"); |
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389 |
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390 return retval; |
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391 } |
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392 |
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393 DEFUN (getpid, args, , |
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394 "-*- texinfo -*-\n\ |
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395 @deftypefn {Built-in Function} {pid =} getpid ()\n\ |
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396 Return the process id of the current process.\n\ |
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397 @end deftypefn") |
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398 { |
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399 octave_value retval = -1; |
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400 |
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401 int nargin = args.length (); |
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402 |
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403 if (nargin == 0) |
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404 retval = octave_syscalls::getpid (); |
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405 else |
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406 print_usage ("getpid"); |
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407 |
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408 return retval; |
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409 } |
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410 |
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411 DEFUN (getppid, args, , |
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412 "-*- texinfo -*-\n\ |
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413 @deftypefn {Built-in Function} {pid =} getppid ()\n\ |
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414 Return the process id of the parent process.\n\ |
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415 @end deftypefn") |
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416 { |
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417 octave_value retval = -1; |
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418 |
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419 int nargin = args.length (); |
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420 |
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421 if (nargin == 0) |
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422 retval = octave_syscalls::getppid (); |
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423 else |
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424 print_usage ("getppid"); |
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425 |
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426 return retval; |
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427 } |
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428 |
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429 DEFUN (getegid, args, , |
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430 "-*- texinfo -*-\n\ |
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431 @deftypefn {Built-in Function} {egid =} getegid ()\n\ |
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432 Return the effective group id of the current process.\n\ |
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433 @end deftypefn") |
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434 { |
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4233
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435 octave_value retval = -1; |
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436 |
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437 int nargin = args.length (); |
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438 |
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439 if (nargin == 0) |
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4254
|
440 retval = octave_syscalls::getegid (); |
|
2075
|
441 else |
|
2475
|
442 print_usage ("getegid"); |
|
|
443 |
|
|
444 return retval; |
|
|
445 } |
|
|
446 |
|
|
447 DEFUN (getgid, args, , |
|
3301
|
448 "-*- texinfo -*-\n\ |
|
|
449 @deftypefn {Built-in Function} {gid =} getgid ()\n\ |
|
|
450 Return the real group id of the current process.\n\ |
|
|
451 @end deftypefn") |
|
2475
|
452 { |
|
4233
|
453 octave_value retval = -1; |
|
2475
|
454 |
|
|
455 int nargin = args.length (); |
|
|
456 |
|
|
457 if (nargin == 0) |
|
4254
|
458 retval = octave_syscalls::getgid (); |
|
2475
|
459 else |
|
|
460 print_usage ("getgid"); |
|
2075
|
461 |
|
|
462 return retval; |
|
|
463 } |
|
|
464 |
|
2473
|
465 DEFUN (geteuid, args, , |
|
3301
|
466 "-*- texinfo -*-\n\ |
|
|
467 @deftypefn {Built-in Function} {euid =} geteuid ()\n\ |
|
|
468 Return the effective user id of the current process.\n\ |
|
|
469 @end deftypefn") |
|
2472
|
470 { |
|
4233
|
471 octave_value retval = -1; |
|
2472
|
472 |
|
|
473 int nargin = args.length (); |
|
|
474 |
|
|
475 if (nargin == 0) |
|
4254
|
476 retval = octave_syscalls::geteuid (); |
|
2472
|
477 else |
|
|
478 print_usage ("geteuid"); |
|
2473
|
479 |
|
|
480 return retval; |
|
2472
|
481 } |
|
|
482 |
|
2473
|
483 DEFUN (getuid, args, , |
|
3301
|
484 "-*- texinfo -*-\n\ |
|
|
485 @deftypefn {Built-in Function} {uid =} getuid ()\n\ |
|
|
486 Return the real user id of the current process.\n\ |
|
|
487 @end deftypefn") |
|
2472
|
488 { |
|
4233
|
489 octave_value retval = -1; |
|
2472
|
490 |
|
|
491 int nargin = args.length (); |
|
|
492 |
|
|
493 if (nargin == 0) |
|
4254
|
494 retval = octave_syscalls::getuid (); |
|
2472
|
495 else |
|
|
496 print_usage ("getuid"); |
|
2473
|
497 |
|
|
498 return retval; |
|
2472
|
499 } |
|
|
500 |
|
4294
|
501 DEFUN (kill, args, , |
|
4371
|
502 "-*- texinfo -*-\n\ |
|
4294
|
503 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} kill (@var{pid}, @var{sig})\n\ |
|
|
504 Send signal @var{sig} to process @var{pid}.\n\ |
|
|
505 \n\ |
|
|
506 If @var{pid} is positive, then signal @var{sig} is sent to @var{pid}.\n\ |
|
|
507 \n\ |
|
|
508 If @var{pid} is 0, then signal @var{sig} is sent to every process\n\ |
|
|
509 in the process group of the current process.\n\ |
|
|
510 \n\ |
|
|
511 If @var{pid} is -1, then signal @var{sig} is sent to every process\n\ |
|
|
512 except process 1.\n\ |
|
|
513 \n\ |
|
|
514 If @var{pid} is less than -1, then signal @var{sig} is sent to every\n\ |
|
|
515 process in the process group @var{-pid}.\n\ |
|
|
516 \n\ |
|
4371
|
517 If @var{sig} is 0, then no signal is sent, but error checking is still\n\ |
|
4294
|
518 performed.\n\ |
|
|
519 \n\ |
|
|
520 Return 0 if sucessful, otherwise return -1.\n\ |
|
|
521 @end deftypefn") |
|
|
522 { |
|
|
523 octave_value_list retval; |
|
|
524 |
|
|
525 retval(1) = std::string (); |
|
|
526 retval(0) = -1; |
|
|
527 |
|
|
528 if (args.length () == 2) |
|
|
529 { |
|
|
530 pid_t pid = args(0).int_value (true); |
|
|
531 |
|
|
532 if (! error_state) |
|
|
533 { |
|
|
534 int sig = args(1).int_value (true); |
|
|
535 |
|
|
536 if (! error_state) |
|
|
537 { |
|
|
538 std::string msg; |
|
|
539 |
|
|
540 int status = octave_syscalls::kill (pid, sig, msg); |
|
|
541 |
|
|
542 retval(1) = msg; |
|
|
543 retval(0) = status; |
|
|
544 } |
|
|
545 } |
|
|
546 } |
|
|
547 else |
|
|
548 print_usage ("kill"); |
|
|
549 |
|
|
550 return retval; |
|
|
551 } |
|
|
552 |
|
2075
|
553 DEFUN (lstat, args, , |
|
3458
|
554 "-*- texinfo -*-\n\ |
|
|
555 @deftypefn {Built-in Function} {[@var{info}, @var{err}, @var{msg}] =} lstat (@var{file})\n\ |
|
|
556 See stat.\n\ |
|
|
557 @end deftypefn") |
|
2075
|
558 { |
|
2263
|
559 octave_value_list retval; |
|
2075
|
560 |
|
|
561 if (args.length () == 1) |
|
|
562 { |
|
3523
|
563 std::string fname = file_ops::tilde_expand (args(0).string_value ()); |
|
2075
|
564 |
|
|
565 if (! error_state) |
|
|
566 { |
|
|
567 file_stat fs (fname, false); |
|
|
568 |
|
2263
|
569 if (fs) |
|
2262
|
570 { |
|
3523
|
571 retval(2) = std::string (); |
|
4294
|
572 retval(1) = 0; |
|
4233
|
573 retval(0) = mk_stat_map (fs); |
|
2262
|
574 } |
|
|
575 else |
|
|
576 { |
|
|
577 retval(2) = fs.error (); |
|
4294
|
578 retval(1) = -1; |
|
2262
|
579 retval(0) = Matrix (); |
|
|
580 } |
|
2075
|
581 } |
|
|
582 } |
|
|
583 else |
|
|
584 print_usage ("lstat"); |
|
|
585 |
|
|
586 return retval; |
|
|
587 } |
|
|
588 |
|
3301
|
589 |
|
|
590 |
|
2075
|
591 DEFUN (mkfifo, args, , |
|
3345
|
592 "-*- texinfo -*-\n\ |
|
4825
|
593 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} mkfifo (@var{name}, @var{mode})\n\ |
|
4928
|
594 Create a @var{fifo} special file named @var{name} with file mode @var{mode}\n\ |
|
2075
|
595 \n\ |
|
3301
|
596 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
|
|
597 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ |
|
|
598 system-dependent error message.\n\ |
|
|
599 @end deftypefn") |
|
2075
|
600 { |
|
2669
|
601 octave_value_list retval; |
|
|
602 |
|
3523
|
603 retval(1) = std::string (); |
|
4294
|
604 retval(0) = -1; |
|
2075
|
605 |
|
|
606 int nargin = args.length (); |
|
|
607 |
|
|
608 if (nargin == 2) |
|
|
609 { |
|
|
610 if (args(0).is_string ()) |
|
|
611 { |
|
3523
|
612 std::string name = args(0).string_value (); |
|
2075
|
613 |
|
|
614 if (args(1).is_scalar_type ()) |
|
|
615 { |
|
4254
|
616 long mode = args(1).long_value (); |
|
2075
|
617 |
|
4254
|
618 if (! error_state) |
|
|
619 { |
|
|
620 std::string msg; |
|
|
621 |
|
|
622 int status = file_ops::mkfifo (name, mode, msg); |
|
2669
|
623 |
|
4254
|
624 retval(0) = status; |
|
2669
|
625 |
|
4254
|
626 if (status < 0) |
|
|
627 retval(1) = msg; |
|
|
628 } |
|
|
629 else |
|
|
630 error ("mkfifo: invalid MODE"); |
|
2075
|
631 } |
|
|
632 else |
|
|
633 error ("mkfifo: MODE must be an integer"); |
|
|
634 } |
|
|
635 else |
|
|
636 error ("mkfifo: file name must be a string"); |
|
|
637 } |
|
|
638 else |
|
|
639 print_usage ("mkfifo"); |
|
|
640 |
|
|
641 return retval; |
|
|
642 } |
|
|
643 |
|
|
644 DEFUN (pipe, args, , |
|
3301
|
645 "-*- texinfo -*-\n\ |
|
|
646 @deftypefn {Built-in Function} {[@var{file_ids}, @var{err}, @var{msg}] =} pipe ()\n\ |
|
|
647 Create a pipe and return the vector @var{file_ids}, which corresponding\n\ |
|
|
648 to the reading and writing ends of the pipe.\n\ |
|
2669
|
649 \n\ |
|
3301
|
650 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
|
|
651 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ |
|
|
652 system-dependent error message.\n\ |
|
|
653 @end deftypefn") |
|
2075
|
654 { |
|
2669
|
655 octave_value_list retval; |
|
|
656 |
|
3523
|
657 retval(2) = std::string (); |
|
4294
|
658 retval(1) = -1; |
|
2669
|
659 retval(0) = Matrix (); |
|
2075
|
660 |
|
|
661 int nargin = args.length (); |
|
|
662 |
|
|
663 if (nargin == 0) |
|
|
664 { |
|
|
665 int fid[2]; |
|
|
666 |
|
3523
|
667 std::string msg; |
|
2937
|
668 |
|
|
669 int status = octave_syscalls::pipe (fid, msg); |
|
2669
|
670 |
|
|
671 if (status < 0) |
|
2937
|
672 retval(2) = msg; |
|
2669
|
673 else |
|
2075
|
674 { |
|
3340
|
675 FILE *ifile = fdopen (fid[0], "r"); |
|
|
676 FILE *ofile = fdopen (fid[1], "w"); |
|
2075
|
677 |
|
4327
|
678 std::string nm; |
|
|
679 |
|
|
680 octave_stream is = octave_stdiostream::create (nm, ifile, |
|
|
681 std::ios::in); |
|
|
682 |
|
|
683 octave_stream os = octave_stdiostream::create (nm, ofile, |
|
|
684 std::ios::out); |
|
2075
|
685 |
|
2902
|
686 octave_value_list file_ids; |
|
2075
|
687 |
|
2902
|
688 file_ids(1) = octave_stream_list::insert (os); |
|
|
689 file_ids(0) = octave_stream_list::insert (is); |
|
2075
|
690 |
|
4233
|
691 retval(1) = status; |
|
2902
|
692 retval(0) = octave_value (file_ids); |
|
2669
|
693 } |
|
2075
|
694 } |
|
|
695 else |
|
|
696 print_usage ("pipe"); |
|
|
697 |
|
|
698 return retval; |
|
|
699 } |
|
|
700 |
|
|
701 DEFUN (stat, args, , |
|
3301
|
702 "-*- texinfo -*-\n\ |
|
|
703 @deftypefn {Built-in Function} {[@var{info}, @var{err}, @var{msg}] =} stat (@var{file})\n\ |
|
|
704 @deftypefnx {Built-in Function} {[@var{info}, @var{err}, @var{msg}] =} lstat (@var{file})\n\ |
|
|
705 Return a structure @var{s} containing the following information about\n\ |
|
|
706 @var{file}.\n\ |
|
|
707 \n\ |
|
|
708 @table @code\n\ |
|
|
709 @item dev\n\ |
|
|
710 ID of device containing a directory entry for this file.\n\ |
|
|
711 \n\ |
|
|
712 @item ino\n\ |
|
|
713 File number of the file.\n\ |
|
|
714 \n\ |
|
|
715 @item modestr\n\ |
|
|
716 File mode, as a string of ten letters or dashes as would be returned by\n\ |
|
|
717 @kbd{ls -l}.\n\ |
|
|
718 \n\ |
|
|
719 @item nlink\n\ |
|
|
720 Number of links.\n\ |
|
2075
|
721 \n\ |
|
3301
|
722 @item uid\n\ |
|
|
723 User ID of file's owner.\n\ |
|
|
724 \n\ |
|
|
725 @item gid\n\ |
|
|
726 Group ID of file's group.\n\ |
|
|
727 \n\ |
|
|
728 @item rdev\n\ |
|
|
729 ID of device for block or character special files.\n\ |
|
|
730 \n\ |
|
|
731 @item size\n\ |
|
|
732 Size in bytes.\n\ |
|
|
733 \n\ |
|
|
734 @item atime\n\ |
|
|
735 Time of last access in the same form as time values returned from\n\ |
|
|
736 @code{time}. @xref{Timing Utilities}.\n\ |
|
|
737 \n\ |
|
|
738 @item mtime\n\ |
|
|
739 Time of last modification in the same form as time values returned from\n\ |
|
|
740 @code{time}. @xref{Timing Utilities}.\n\ |
|
2075
|
741 \n\ |
|
3301
|
742 @item ctime\n\ |
|
|
743 Time of last file status change in the same form as time values\n\ |
|
|
744 returned from @code{time}. @xref{Timing Utilities}.\n\ |
|
|
745 \n\ |
|
|
746 @item blksize\n\ |
|
|
747 Size of blocks in the file.\n\ |
|
|
748 \n\ |
|
|
749 @item blocks\n\ |
|
|
750 Number of blocks allocated for file.\n\ |
|
|
751 @end table\n\ |
|
|
752 \n\ |
|
|
753 If the call is successful @var{err} is 0 and @var{msg} is an empty\n\ |
|
|
754 string. If the file does not exist, or some other error occurs, @var{s}\n\ |
|
|
755 is an empty matrix, @var{err} is @minus{}1, and @var{msg} contains the\n\ |
|
|
756 corresponding system error message.\n\ |
|
|
757 \n\ |
|
|
758 If @var{file} is a symbolic link, @code{stat} will return information\n\ |
|
|
759 about the actual file the is referenced by the link. Use @code{lstat}\n\ |
|
|
760 if you want information about the symbolic link itself.\n\ |
|
|
761 \n\ |
|
|
762 For example,\n\ |
|
2075
|
763 \n\ |
|
3301
|
764 @example\n\ |
|
|
765 @group\n\ |
|
|
766 [s, err, msg] = stat (\"/vmlinuz\")\n\ |
|
|
767 @result{} s =\n\ |
|
|
768 @{\n\ |
|
|
769 atime = 855399756\n\ |
|
|
770 rdev = 0\n\ |
|
|
771 ctime = 847219094\n\ |
|
|
772 uid = 0\n\ |
|
|
773 size = 389218\n\ |
|
|
774 blksize = 4096\n\ |
|
|
775 mtime = 847219094\n\ |
|
|
776 gid = 6\n\ |
|
|
777 nlink = 1\n\ |
|
|
778 blocks = 768\n\ |
|
|
779 modestr = -rw-r--r--\n\ |
|
|
780 ino = 9316\n\ |
|
|
781 dev = 2049\n\ |
|
|
782 @}\n\ |
|
|
783 @result{} err = 0\n\ |
|
|
784 @result{} msg = \n\ |
|
|
785 @end group\n\ |
|
|
786 @end example\n\ |
|
|
787 @end deftypefn") |
|
2075
|
788 { |
|
2262
|
789 octave_value_list retval; |
|
2075
|
790 |
|
|
791 if (args.length () == 1) |
|
|
792 { |
|
3523
|
793 std::string fname = file_ops::tilde_expand (args(0).string_value ()); |
|
2075
|
794 |
|
|
795 if (! error_state) |
|
|
796 { |
|
|
797 file_stat fs (fname); |
|
|
798 |
|
|
799 if (fs) |
|
2262
|
800 { |
|
3523
|
801 retval(2) = std::string (); |
|
4294
|
802 retval(1) = 0; |
|
2262
|
803 retval(0) = octave_value (mk_stat_map (fs)); |
|
|
804 } |
|
|
805 else |
|
|
806 { |
|
|
807 retval(2) = fs.error (); |
|
4294
|
808 retval(1) = -1; |
|
2262
|
809 retval(0) = Matrix (); |
|
|
810 } |
|
2075
|
811 } |
|
|
812 } |
|
|
813 else |
|
|
814 print_usage ("stat"); |
|
|
815 |
|
|
816 return retval; |
|
|
817 } |
|
|
818 |
|
|
819 DEFUN (unlink, args, , |
|
3301
|
820 "-*- texinfo -*-\n\ |
|
|
821 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} unlink (@var{file})\n\ |
|
|
822 Delete the file named @var{file}.\n\ |
|
2075
|
823 \n\ |
|
3301
|
824 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
|
|
825 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ |
|
|
826 system-dependent error message.\n\ |
|
|
827 @end deftypefn") |
|
2075
|
828 { |
|
2669
|
829 octave_value_list retval; |
|
|
830 |
|
3523
|
831 retval(1) = std::string (); |
|
4294
|
832 retval(0) = -1; |
|
2075
|
833 |
|
|
834 int nargin = args.length (); |
|
|
835 |
|
|
836 if (nargin == 1) |
|
|
837 { |
|
|
838 if (args(0).is_string ()) |
|
|
839 { |
|
3523
|
840 std::string name = args(0).string_value (); |
|
2075
|
841 |
|
3523
|
842 std::string msg; |
|
2669
|
843 |
|
2926
|
844 int status = file_ops::unlink (name, msg); |
|
2669
|
845 |
|
4233
|
846 retval(0) = status; |
|
2937
|
847 retval(1) = msg; |
|
2075
|
848 } |
|
|
849 else |
|
|
850 error ("unlink: file name must be a string"); |
|
|
851 } |
|
|
852 else |
|
|
853 print_usage ("unlink"); |
|
|
854 |
|
|
855 return retval; |
|
|
856 } |
|
|
857 |
|
|
858 DEFUN (waitpid, args, , |
|
3301
|
859 "-*- texinfo -*-\n\ |
|
|
860 @deftypefn {Built-in Function} {[@var{pid}, @var{msg}] =} waitpid (@var{pid}, @var{options})\n\ |
|
|
861 Wait for process @var{pid} to terminate. The @var{pid} argument can be:\n\ |
|
2075
|
862 \n\ |
|
3301
|
863 @table @asis\n\ |
|
|
864 @item @minus{}1\n\ |
|
|
865 Wait for any child process.\n\ |
|
2075
|
866 \n\ |
|
3301
|
867 @item 0\n\ |
|
|
868 Wait for any child process whose process group ID is equal to that of\n\ |
|
|
869 the Octave interpreter process.\n\ |
|
2075
|
870 \n\ |
|
3301
|
871 @item > 0\n\ |
|
|
872 Wait for termination of the child process with ID @var{pid}.\n\ |
|
|
873 @end table\n\ |
|
|
874 \n\ |
|
|
875 The @var{options} argument can be:\n\ |
|
2075
|
876 \n\ |
|
3301
|
877 @table @asis\n\ |
|
|
878 @item 0\n\ |
|
|
879 Wait until signal is received or a child process exits (this is the\n\ |
|
|
880 default if the @var{options} argument is missing).\n\ |
|
|
881 \n\ |
|
|
882 @item 1\n\ |
|
|
883 Do not hang if status is not immediately available.\n\ |
|
2075
|
884 \n\ |
|
3301
|
885 @item 2\n\ |
|
|
886 Report the status of any child processes that are stopped, and whose\n\ |
|
|
887 status has not yet been reported since they stopped.\n\ |
|
|
888 \n\ |
|
|
889 @item 3\n\ |
|
|
890 Implies both 1 and 2.\n\ |
|
|
891 @end table\n\ |
|
|
892 \n\ |
|
|
893 If the returned value of @var{pid} is greater than 0, it is the process\n\ |
|
|
894 ID of the child process that exited. If an error occurs, @var{pid} will\n\ |
|
|
895 be less than zero and @var{msg} will contain a system-dependent error\n\ |
|
|
896 message.\n\ |
|
|
897 @end deftypefn") |
|
2075
|
898 { |
|
2669
|
899 octave_value_list retval; |
|
|
900 |
|
3523
|
901 retval(1) = std::string (); |
|
4294
|
902 retval(0) = -1; |
|
2075
|
903 |
|
|
904 int nargin = args.length (); |
|
|
905 |
|
|
906 if (nargin == 1 || nargin == 2) |
|
|
907 { |
|
3202
|
908 pid_t pid = args(0).int_value (true); |
|
2075
|
909 |
|
|
910 if (! error_state) |
|
|
911 { |
|
3202
|
912 int options = 0; |
|
2075
|
913 |
|
3202
|
914 if (args.length () == 2) |
|
|
915 { |
|
|
916 options = args(1).int_value (true); |
|
2075
|
917 |
|
|
918 if (! error_state) |
|
2669
|
919 { |
|
3202
|
920 if (options < 0 || options > 3) |
|
|
921 error ("waitpid: invalid OPTIONS value specified"); |
|
|
922 } |
|
|
923 else |
|
|
924 error ("waitpid: OPTIONS must be in integer"); |
|
|
925 } |
|
2937
|
926 |
|
3202
|
927 if (! error_state) |
|
|
928 { |
|
3523
|
929 std::string msg; |
|
2669
|
930 |
|
3202
|
931 pid_t status = octave_syscalls::waitpid (pid, options, msg); |
|
|
932 |
|
4233
|
933 retval(0) = status; |
|
3202
|
934 retval(1) = msg; |
|
2075
|
935 } |
|
|
936 } |
|
3202
|
937 else |
|
|
938 error ("waitpid: PID must be an integer value"); |
|
2075
|
939 } |
|
|
940 else |
|
|
941 print_usage ("waitpid"); |
|
|
942 |
|
|
943 return retval; |
|
|
944 } |
|
|
945 |
|
5138
|
946 DEFUN (canonicalize_file_name, args, , |
|
|
947 "-*- texinfo -*-\n\ |
|
|
948 @deftypefn {Built-in Function} {[@var{cname}, @var{status}, @var{msg}]} canonicalize_file_name (@var{name})\n\ |
|
|
949 Return the canonical name of file @var{name}.\n\ |
|
|
950 @end deftypefn") |
|
|
951 { |
|
|
952 octave_value_list retval; |
|
|
953 |
|
|
954 if (args.length () == 1) |
|
|
955 { |
|
|
956 std::string name = args(0).string_value (); |
|
|
957 |
|
|
958 if (! error_state) |
|
|
959 { |
|
|
960 std::string msg; |
|
|
961 |
|
|
962 std::string result = file_ops::canonicalize_file_name (name, msg); |
|
|
963 |
|
|
964 retval(2) = msg; |
|
|
965 retval(1) = msg.empty () ? 0 : -1; |
|
|
966 retval(0) = result; |
|
|
967 } |
|
|
968 else |
|
|
969 error ("canonicalize_file_name: argument must be a character string"); |
|
|
970 } |
|
|
971 else |
|
|
972 print_usage ("canonicalize_file_name"); |
|
|
973 |
|
|
974 return retval; |
|
|
975 } |
|
|
976 |
|
2075
|
977 #if !defined (O_NONBLOCK) && defined (O_NDELAY) |
|
|
978 #define O_NONBLOCK O_NDELAY |
|
|
979 #endif |
|
|
980 |
|
|
981 void |
|
|
982 symbols_of_syscalls (void) |
|
|
983 { |
|
|
984 #if defined (F_DUPFD) |
|
4233
|
985 DEFCONSTX ("F_DUPFD", SBV_F_DUPFD, F_DUPFD, |
|
3446
|
986 "-*- texinfo -*-\n\ |
|
5333
|
987 @defvr {Built-in Constant} F_DUPFD\n\ |
|
5040
|
988 Request to @code{fcntl} to return a duplicate file descriptor.\n\ |
|
5333
|
989 @seealso{fcntl, F_GETFD, F_GETFL, F_SETFD, F_SETFL}\n\ |
|
3446
|
990 @end defvr"); |
|
2075
|
991 #endif |
|
|
992 |
|
|
993 #if defined (F_GETFD) |
|
4233
|
994 DEFCONSTX ("F_GETFD", SBV_F_GETFD, F_GETFD, |
|
3446
|
995 "-*- texinfo -*-\n\ |
|
5333
|
996 @defvr {Built-in Constant} F_GETFD\n\ |
|
5040
|
997 Request to @code{fcntl} to return the file descriptor flags.\n\ |
|
5333
|
998 @seealso{fcntl, F_DUPFD, F_GETFL, F_SETFD, F_SETFL}\n\ |
|
3446
|
999 @end defvr"); |
|
2075
|
1000 #endif |
|
|
1001 |
|
|
1002 #if defined (F_GETFL) |
|
4233
|
1003 DEFCONSTX ("F_GETFL", SBV_F_GETFL, F_GETFL, |
|
3446
|
1004 "-*- texinfo -*-\n\ |
|
5333
|
1005 @defvr {Built-in Constant} F_GETFL\n\ |
|
5040
|
1006 Request to @code{fcntl} to return the file status flags.\n\ |
|
5333
|
1007 @seealso{fcntl, F_DUPFD, F_GETFD, F_SETFD, F_SETFL}\n\ |
|
3446
|
1008 @end defvr"); |
|
2075
|
1009 #endif |
|
|
1010 |
|
|
1011 #if defined (F_SETFD) |
|
4233
|
1012 DEFCONSTX ("F_SETFD", SBV_F_SETFD, F_SETFD, |
|
3446
|
1013 "-*- texinfo -*-\n\ |
|
5333
|
1014 @defvr {Built-in Constant} F_SETFD\n\ |
|
5040
|
1015 Request to @code{fcntl} to set the file descriptor flags.\n\ |
|
5333
|
1016 @seealso{fcntl, F_DUPFD, F_GETFD, F_GETFL, F_SETFL}\n\ |
|
3446
|
1017 @end defvr"); |
|
2075
|
1018 #endif |
|
|
1019 |
|
|
1020 #if defined (F_SETFL) |
|
4233
|
1021 DEFCONSTX ("F_SETFL", SBV_F_SETFL, F_SETFL, |
|
3446
|
1022 "-*- texinfo -*-\n\ |
|
5333
|
1023 @defvr {Built-in Constant} F_SETFL\n\ |
|
5040
|
1024 Request to @code{fcntl} to set the file status flags.\n\ |
|
5333
|
1025 @seealso{fcntl, F_DUPFD, F_GETFD, F_GETFL, F_SETFD}\n\ |
|
3446
|
1026 @end defvr"); |
|
2075
|
1027 #endif |
|
|
1028 |
|
|
1029 #if defined (O_APPEND) |
|
4233
|
1030 DEFCONSTX ("O_APPEND", SBV_O_APPEND, O_APPEND, |
|
3446
|
1031 "-*- texinfo -*-\n\ |
|
5333
|
1032 @defvr {Built-in Constant} O_APPEND\n\ |
|
5040
|
1033 File status flag, append on each write.\n\ |
|
5333
|
1034 @seealso{fcntl, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
|
3446
|
1035 @end defvr"); |
|
2075
|
1036 #endif |
|
|
1037 |
|
2669
|
1038 #if defined (O_ASYNC) |
|
4233
|
1039 DEFCONSTX ("O_ASYNC", SBV_O_ASYNC, O_ASYNC, |
|
3446
|
1040 "-*- texinfo -*-\n\ |
|
5333
|
1041 @defvr {Built-in Constant} O_ASYNC\n\ |
|
5040
|
1042 File status flag, asynchronous I/O.\n\ |
|
5333
|
1043 @seealso{fcntl, O_APPEND, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
|
3446
|
1044 @end defvr"); |
|
2669
|
1045 #endif |
|
|
1046 |
|
2075
|
1047 #if defined (O_CREAT) |
|
4233
|
1048 DEFCONSTX ("O_CREAT", SBV_O_CREAT, O_CREAT, |
|
3446
|
1049 "-*- texinfo -*-\n\ |
|
5333
|
1050 @defvr {Built-in Constant} O_CREAT\n\ |
|
5040
|
1051 File status flag, create file if it does not exist.\n\ |
|
5333
|
1052 @seealso{fcntl, O_APPEND, O_ASYNC, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
|
3446
|
1053 @end defvr"); |
|
2075
|
1054 #endif |
|
|
1055 |
|
|
1056 #if defined (O_EXCL) |
|
4233
|
1057 DEFCONSTX ("O_EXCL", SBV_O_EXCL, O_EXCL, |
|
3446
|
1058 "-*- texinfo -*-\n\ |
|
5333
|
1059 @defvr {Built-in Constant} O_EXCL\n\ |
|
5040
|
1060 File status flag, file locking.\n\ |
|
5333
|
1061 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
|
3446
|
1062 @end defvr"); |
|
2075
|
1063 #endif |
|
|
1064 |
|
|
1065 #if defined (O_NONBLOCK) |
|
4233
|
1066 DEFCONSTX ("O_NONBLOCK", SBV_O_NONBLOCK, O_NONBLOCK, |
|
3446
|
1067 "-*- texinfo -*-\n\ |
|
5333
|
1068 @defvr {Built-in Constant} O_NONBLOCK\n\ |
|
5040
|
1069 File status flag, non-blocking I/O.\n\ |
|
5333
|
1070 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
|
3446
|
1071 @end defvr"); |
|
2075
|
1072 #endif |
|
|
1073 |
|
|
1074 #if defined (O_RDONLY) |
|
4233
|
1075 DEFCONSTX ("O_RDONLY", SBV_O_RDONLY, O_RDONLY, |
|
3446
|
1076 "-*- texinfo -*-\n\ |
|
5333
|
1077 @defvr {Built-in Constant} O_RDONLY\n\ |
|
5040
|
1078 File status flag, file opened for reading only.\n\ |
|
5333
|
1079 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
|
3446
|
1080 @end defvr"); |
|
2075
|
1081 #endif |
|
|
1082 |
|
|
1083 #if defined (O_RDWR) |
|
4233
|
1084 DEFCONSTX ("O_RDWR", SBV_O_RDWR, O_RDWR, |
|
3446
|
1085 "-*- texinfo -*-\n\ |
|
5333
|
1086 @defvr {Built-in Constant} O_RDWR\n\ |
|
5040
|
1087 File status flag, file open for both reading and writing.\n\ |
|
5333
|
1088 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_SYNC, O_TRUNC, O_WRONLY}\n\ |
|
3446
|
1089 @end defvr"); |
|
2075
|
1090 #endif |
|
|
1091 |
|
2669
|
1092 #if defined (O_SYNC) |
|
4233
|
1093 DEFCONSTX ("O_SYNC", SBV_O_SYNC, O_SYNC, |
|
3446
|
1094 "-*- texinfo -*-\n\ |
|
5333
|
1095 @defvr {Built-in Constant} O_SYNC\n\ |
|
5040
|
1096 File status flag, file opened for synchronous I/O.\n\ |
|
5333
|
1097 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_TRUNC, O_WRONLY}\n\ |
|
3446
|
1098 @end defvr"); |
|
2669
|
1099 #endif |
|
|
1100 |
|
2075
|
1101 #if defined (O_TRUNC) |
|
4233
|
1102 DEFCONSTX ("O_TRUNC", SBV_O_TRUNC, O_TRUNC, |
|
3446
|
1103 "-*- texinfo -*-\n\ |
|
|
1104 @defvr {Built-in Variable} O_TRUNC\n\ |
|
5040
|
1105 File status flag, if file exists, truncate it when writing.\n\ |
|
5333
|
1106 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_WRONLY}\n\ |
|
3446
|
1107 @end defvr"); |
|
2075
|
1108 #endif |
|
|
1109 |
|
|
1110 #if defined (O_WRONLY) |
|
4233
|
1111 DEFCONSTX ("O_WRONLY", SBV_O_WRONLY, O_WRONLY, |
|
3446
|
1112 "-*- texinfo -*-\n\ |
|
5333
|
1113 @defvr {Built-in Constant} O_WRONLY\n\ |
|
5040
|
1114 File status flag, file opened for writing only.\n\ |
|
5333
|
1115 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC}\n\ |
|
3446
|
1116 @end defvr"); |
|
2075
|
1117 #endif |
|
3446
|
1118 |
|
2075
|
1119 } |
|
|
1120 |
|
|
1121 /* |
|
|
1122 ;;; Local Variables: *** |
|
|
1123 ;;; mode: C++ *** |
|
|
1124 ;;; End: *** |
|
|
1125 */ |
