Mercurial > octave
annotate libinterp/corefcn/syscalls.cc @ 27923:bd51beb6205e
update formatting of copyright notices
* Use <https://octave.org/copyright/> instead of
<https://octave.org/COPYRIGHT.html/>.
* For consistency with other comments in the Octave sources, use
C++-style comments for copyright blocks in C and C++ files.
* Use delimiters above and below copyright blocks that are appropriate
for the language used in the file.
* Eliminate extra spacing inside copyright blocks.
* lex.ll (looks_like_copyright): Also allow newlines and carriage
returns before the word "Copyright".
* scripts/mk-doc.pl (gethelp): Also skip empty comment lines.
* bp-table.cc, type.m: Adjust tests.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 08 Jan 2020 11:59:41 -0500 |
parents | 1891570abac8 |
children | 501553fcf6e2 5bf3f462c11e |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 1996-2020 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
2075 | 25 |
26 // Thomas Baier <baier@ci.tuwien.ac.at> added the original versions of | |
27 // the following functions: | |
28 // | |
29 // mkfifo unlink waitpid | |
30 | |
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31 #if defined (HAVE_CONFIG_H) |
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32 # include "config.h" |
2075 | 33 #endif |
34 | |
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35 #include <ctime> |
2075 | 36 #include <cstdio> |
2669 | 37 #include <cstring> |
2075 | 38 |
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39 #include "cmd-hist.h" |
21911 | 40 #include "fcntl-wrappers.h" |
2926 | 41 #include "file-ops.h" |
42 #include "file-stat.h" | |
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43 #include "lo-utils.h" |
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44 #include "oct-env.h" |
2937 | 45 #include "oct-syscalls.h" |
5547 | 46 #include "oct-uname.h" |
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47 |
2075 | 48 #include "defun.h" |
49 #include "error.h" | |
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50 #include "errwarn.h" |
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51 #include "event-manager.h" |
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52 #include "input.h" |
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53 #include "interpreter.h" |
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54 #include "oct-hist.h" |
2075 | 55 #include "oct-map.h" |
56 #include "oct-stdstrm.h" | |
57 #include "oct-stream.h" | |
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58 #include "ovl.h" |
2075 | 59 #include "sysdep.h" |
60 #include "utils.h" | |
2366 | 61 #include "variables.h" |
2075 | 62 |
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63 static octave_scalar_map |
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64 mk_stat_map (const octave::sys::base_file_stat& fs) |
2075 | 65 { |
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66 static bool have_rdev |
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67 = octave::sys::base_file_stat::have_struct_stat_st_rdev (); |
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68 static bool have_blksize |
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69 = octave::sys::base_file_stat::have_struct_stat_st_blksize (); |
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70 static bool have_blocks |
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71 = octave::sys::base_file_stat::have_struct_stat_st_blocks (); |
21935 | 72 |
73 static double nan = octave::numeric_limits<double>::NaN (); | |
74 | |
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75 octave_scalar_map m; |
2075 | 76 |
4675 | 77 m.assign ("dev", static_cast<double> (fs.dev ())); |
78 m.assign ("ino", fs.ino ()); | |
5476 | 79 m.assign ("mode", fs.mode ()); |
4675 | 80 m.assign ("modestr", fs.mode_as_string ()); |
81 m.assign ("nlink", fs.nlink ()); | |
82 m.assign ("uid", fs.uid ()); | |
83 m.assign ("gid", fs.gid ()); | |
21935 | 84 m.assign ("rdev", have_rdev ? static_cast<double> (fs.rdev ()) : nan); |
4675 | 85 m.assign ("size", fs.size ()); |
86 m.assign ("atime", fs.atime ()); | |
87 m.assign ("mtime", fs.mtime ()); | |
88 m.assign ("ctime", fs.ctime ()); | |
21935 | 89 |
90 if (have_blksize) | |
91 m.assign ("blksize", fs.blksize ()); | |
92 else | |
93 m.assign ("blksize", nan); | |
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94 |
21935 | 95 if (have_blocks) |
96 m.assign ("blocks", fs.blocks ()); | |
97 else | |
98 m.assign ("blocks", nan); | |
2075 | 99 |
100 return m; | |
101 } | |
102 | |
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103 static octave_value_list |
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104 mk_stat_result (const octave::sys::base_file_stat& fs) |
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105 { |
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106 if (fs) |
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107 return ovl (octave_value (mk_stat_map (fs)), 0, ""); |
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108 else |
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109 return ovl (Matrix (), -1, fs.error ()); |
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110 } |
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111 |
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112 DEFMETHODX ("dup2", Fdup2, interp, args, , |
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113 doc: /* -*- texinfo -*- |
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114 @deftypefn {} {[@var{fid}, @var{msg}] =} dup2 (@var{old}, @var{new}) |
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115 Duplicate a file descriptor. |
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116 |
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117 If successful, @var{fid} is greater than zero and contains the new file ID@. |
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118 Otherwise, @var{fid} is negative and @var{msg} contains a system-dependent |
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119 error message. |
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120 @seealso{fopen, fclose, fcntl} |
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121 @end deftypefn */) |
2075 | 122 { |
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123 if (args.length () != 2) |
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124 print_usage (); |
2075 | 125 |
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126 octave::stream_list& streams = interp.get_stream_list (); |
2075 | 127 |
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128 octave::stream old_stream = streams.lookup (args(0), "dup2"); |
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129 |
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130 octave::stream new_stream = streams.lookup (args(1), "dup2"); |
2075 | 131 |
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132 int i_old = old_stream.file_number (); |
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133 int i_new = new_stream.file_number (); |
2669 | 134 |
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135 if (i_old >= 0 && i_new >= 0) |
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136 { |
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137 std::string msg; |
3341 | 138 |
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139 int status = octave::sys::dup2 (i_old, i_new, msg); |
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140 |
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141 return ovl (status, msg); |
2075 | 142 } |
143 else | |
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144 return ovl (-1, ""); |
2075 | 145 } |
146 | |
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147 DEFMETHODX ("exec", Fexec, interp, args, , |
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148 doc: /* -*- texinfo -*- |
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149 @deftypefn {} {[@var{err}, @var{msg}] =} exec (@var{file}, @var{args}) |
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150 Replace current process with a new process. |
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151 |
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152 Calling @code{exec} without first calling @code{fork} will terminate your |
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153 current Octave process and replace it with the program named by @var{file}. |
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154 For example, |
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155 |
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156 @example |
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157 exec ("ls", "-l") |
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158 @end example |
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159 |
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160 @noindent |
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161 will run @code{ls} and return you to your shell prompt. |
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162 |
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163 If successful, @code{exec} does not return. If @code{exec} does return, |
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164 @var{err} will be nonzero, and @var{msg} will contain a system-dependent |
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165 error message. |
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166 @end deftypefn */) |
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168 int nargin = args.length (); | |
169 | |
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170 if (nargin < 1 || nargin > 2) |
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171 print_usage (); |
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173 std::string exec_file = args(0).xstring_value ("exec: FILE must be a string"); |
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175 string_vector exec_args; |
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177 if (nargin == 2) |
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178 { |
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179 string_vector tmp = args(1).xstring_vector_value ("exec: all arguments must be strings"); |
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181 int len = tmp.numel (); |
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183 exec_args.resize (len + 1); |
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185 exec_args[0] = exec_file; |
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187 for (int i = 0; i < len; i++) |
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188 exec_args[i+1] = tmp[i]; |
2075 | 189 } |
190 else | |
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191 { |
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192 exec_args.resize (1); |
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193 |
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194 exec_args[0] = exec_file; |
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195 } |
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196 |
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197 octave::history_system& history_sys = interp.get_history_system (); |
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198 |
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199 history_sys.write_timestamp (); |
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201 if (! octave::command_history::ignoring_entries ()) |
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202 octave::command_history::clean_up_and_save (); |
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203 |
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204 std::string msg; |
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205 |
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206 int status = octave::sys::execvp (exec_file, exec_args, msg); |
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207 |
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208 return ovl (status, msg); |
2075 | 209 } |
210 | |
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211 DEFMETHODX ("popen2", Fpopen2, interp, args, , |
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212 doc: /* -*- texinfo -*- |
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213 @deftypefn {} {[@var{in}, @var{out}, @var{pid}] =} popen2 (@var{command}, @var{args}) |
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214 Start a subprocess with two-way communication. |
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215 |
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216 The name of the process is given by @var{command}, and @var{args} is an |
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217 array or cell array of strings containing options for the command. |
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218 |
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219 The file identifiers for the input and output streams of the subprocess are |
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220 returned in @var{in} and @var{out}. If execution of the command is |
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221 successful, @var{pid} contains the process ID of the subprocess. Otherwise, |
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222 @var{pid} is @minus{}1. |
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223 |
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224 For example: |
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225 |
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226 @example |
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227 [in, out, pid] = popen2 ("sort", "-r"); |
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228 fputs (in, "these\nare\nsome\nstrings\n"); |
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229 fclose (in); |
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230 EAGAIN = errno ("EAGAIN"); |
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231 done = false; |
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232 do |
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233 s = fgets (out); |
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234 if (ischar (s)) |
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235 fputs (stdout, s); |
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236 elseif (errno () == EAGAIN) |
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237 pause (0.1); |
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238 fclear (out); |
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239 else |
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240 done = true; |
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241 endif |
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242 until (done) |
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243 fclose (out); |
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244 waitpid (pid); |
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245 |
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246 @print{} these |
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247 @print{} strings |
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248 @print{} some |
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249 @print{} are |
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250 @end example |
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251 |
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252 Note that @code{popen2}, unlike @code{popen}, will not @nospell{"reap"} |
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253 the child process. If you don't use @code{waitpid} to check the child's |
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254 exit status, it will linger until Octave exits. |
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255 @seealso{popen, waitpid} |
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256 @end deftypefn */) |
6321 | 257 { |
258 int nargin = args.length (); | |
259 | |
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260 if (nargin < 1 || nargin > 3) |
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261 print_usage (); |
6321 | 262 |
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263 std::string exec_file = args(0).xstring_value ("popen2: COMMAND argument must be a string"); |
6321 | 264 |
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265 string_vector arg_list; |
6321 | 266 |
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267 if (nargin >= 2) |
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268 { |
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269 string_vector tmp = args(1).xstring_vector_value ("popen2: all arguments must be strings"); |
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271 int len = tmp.numel (); |
6321 | 272 |
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273 arg_list.resize (len + 1); |
6321 | 274 |
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275 arg_list[0] = exec_file; |
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276 |
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277 for (int i = 0; i < len; i++) |
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278 arg_list[i+1] = tmp[i]; |
6321 | 279 } |
280 else | |
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281 { |
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282 arg_list.resize (1); |
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283 |
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284 arg_list[0] = exec_file; |
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285 } |
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286 |
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287 bool sync_mode = (nargin == 3 ? args(2).bool_value () : false); |
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288 |
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289 int filedesc[2]; |
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290 std::string msg; |
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291 pid_t pid; |
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293 pid = octave::sys::popen2 (exec_file, arg_list, sync_mode, filedesc, msg); |
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294 |
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295 if (pid < 0) |
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296 error ("%s", msg.c_str ()); |
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298 FILE *ifile = fdopen (filedesc[1], "r"); |
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299 FILE *ofile = fdopen (filedesc[0], "w"); |
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300 |
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301 octave::stream is |
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302 = octave_stdiostream::create (exec_file + "-in", ifile, std::ios::in); |
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303 |
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304 octave::stream os |
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305 = octave_stdiostream::create (exec_file + "-out", ofile, std::ios::out); |
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306 |
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307 octave::stream_list& streams = interp.get_stream_list (); |
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308 |
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309 return ovl (streams.insert (os), streams.insert (is), pid); |
6321 | 310 } |
311 | |
312 /* | |
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313 |
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314 %!test # UNIX-style test |
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315 %! if (isunix () || ismac ()) |
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316 %! [in, out, pid] = popen2 ("sort", "-r"); |
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317 %! EAGAIN = errno ("EAGAIN"); |
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318 %! fputs (in, "these\nare\nsome\nstrings\n"); |
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319 %! fclose (in); |
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320 %! done = false; |
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321 %! str = {}; |
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322 %! idx = 0; |
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323 %! errs = 0; |
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324 %! do |
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325 %! if (ismac ()) # FIXME: Is this necessary? |
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326 %! errno (0); |
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327 %! endif |
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328 %! s = fgets (out); |
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329 %! if (ischar (s)) |
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330 %! idx++; |
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331 %! str{idx} = s; |
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332 %! elseif (errno () == EAGAIN) |
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333 %! fclear (out); |
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334 %! pause (0.1); |
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335 %! if (++errs == 100) |
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336 %! done = true; |
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337 %! endif |
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338 %! else |
6321 | 339 %! done = true; |
340 %! endif | |
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341 %! until (done) |
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342 %! fclose (out); |
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343 %! waitpid (pid); |
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344 %! assert (str, {"these\n","strings\n","some\n","are\n"}); |
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345 %! endif |
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346 |
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347 %!test # Windows-style test |
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348 %! if (ispc () && ! isunix ()) |
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349 %! [in, out, pid] = popen2 ('C:\Windows\system32\sort.exe', "/R"); |
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350 %! EAGAIN = errno ("EINVAL"); |
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351 %! fputs (in, "these\r\nare\r\nsome\r\nstrings\r\n"); |
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352 %! fclose (in); |
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353 %! done = false; |
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354 %! str = {}; |
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355 %! idx = 0; |
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356 %! errs = 0; |
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357 %! do |
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358 %! errno (0); |
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359 %! s = fgets (out); |
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360 %! if (ischar (s)) |
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361 %! idx++; |
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362 %! str{idx} = s; |
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363 %! elseif (errno () == EAGAIN) |
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364 %! fclear (out); |
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365 %! pause (0.1); |
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366 %! if (++errs == 100) |
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367 %! done = true; |
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368 %! endif |
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369 %! else |
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370 %! done = true; |
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371 %! endif |
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372 %! until (done) |
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373 %! fclose (out); |
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374 %! waitpid (pid); |
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375 %! assert (str, {"these\r\n","strings\r\n","some\r\n","are\r\n"}); |
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376 %! endif |
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377 |
6321 | 378 */ |
379 | |
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380 DEFMETHODX ("fcntl", Ffcntl, interp, args, , |
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381 doc: /* -*- texinfo -*- |
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382 @deftypefn {} {[@var{err}, @var{msg}] =} fcntl (@var{fid}, @var{request}, @var{arg}) |
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383 Change the properties of the open file @var{fid}. |
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384 |
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385 The following values may be passed as @var{request}: |
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386 |
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387 @vtable @code |
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388 @item F_DUPFD |
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389 Return a duplicate file descriptor. |
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390 |
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391 @item F_GETFD |
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392 Return the file descriptor flags for @var{fid}. |
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393 |
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394 @item F_SETFD |
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395 Set the file descriptor flags for @var{fid}. |
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396 |
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397 @item F_GETFL |
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398 Return the file status flags for @var{fid}. The following codes may be |
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399 returned (some of the flags may be undefined on some systems). |
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400 |
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401 @vtable @code |
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402 @item O_RDONLY |
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403 Open for reading only. |
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404 |
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405 @item O_WRONLY |
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406 Open for writing only. |
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407 |
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408 @item O_RDWR |
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409 Open for reading and writing. |
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410 |
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411 @item O_APPEND |
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412 Append on each write. |
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413 |
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414 @item O_CREAT |
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415 Create the file if it does not exist. |
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416 |
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417 @item O_NONBLOCK |
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418 Non-blocking mode. |
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419 |
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420 @item O_SYNC |
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421 Wait for writes to complete. |
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422 |
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423 @item O_ASYNC |
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424 Asynchronous I/O. |
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425 @end vtable |
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426 |
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427 @item F_SETFL |
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428 Set the file status flags for @var{fid} to the value specified by @var{arg}. |
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429 The only flags that can be changed are @w{@code{O_APPEND}} and |
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430 @w{@code{O_NONBLOCK}}. |
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431 @end vtable |
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432 |
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433 If successful, @var{err} is 0 and @var{msg} is an empty string. Otherwise, |
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434 @var{err} is nonzero and @var{msg} contains a system-dependent error |
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435 message. |
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436 @seealso{fopen, dup2} |
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437 @end deftypefn */) |
2075 | 438 { |
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439 if (args.length () != 3) |
5823 | 440 print_usage (); |
2075 | 441 |
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442 octave::stream_list& streams = interp.get_stream_list (); |
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443 |
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444 octave::stream strm = streams.lookup (args(0), "fcntl"); |
2075 | 445 |
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446 int fid = strm.file_number (); |
3715 | 447 |
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448 // FIXME: Do we want to use xint_value and throw a warning message |
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449 // if input validation fails? |
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450 int req = args(1).int_value (true); |
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451 int arg = args(2).int_value (true); |
3715 | 452 |
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453 // FIXME: Need better checking here? |
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454 if (fid < 0) |
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455 error ("fcntl: invalid file id"); |
2937 | 456 |
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457 std::string msg; |
2669 | 458 |
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459 int status = octave::sys::fcntl (fid, req, arg, msg); |
2075 | 460 |
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461 return ovl (status, msg); |
2075 | 462 } |
463 | |
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464 DEFMETHODX ("fork", Ffork, interp, args, , |
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465 doc: /* -*- texinfo -*- |
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466 @deftypefn {} {[@var{pid}, @var{msg}] =} fork () |
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467 Create a copy of the current process. |
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468 |
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469 Fork can return one of the following values: |
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470 |
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471 @table @asis |
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472 @item > 0 |
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473 You are in the parent process. The value returned from @code{fork} is the |
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474 process id of the child process. You should probably arrange to wait for |
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475 any child processes to exit. |
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476 |
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477 @item 0 |
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478 You are in the child process. You can call @code{exec} to start another |
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479 process. If that fails, you should probably call @code{exit}. |
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480 |
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481 @item < 0 |
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482 The call to @code{fork} failed for some reason. You must take evasive |
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483 action. A system dependent error message will be waiting in @var{msg}. |
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484 @end table |
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485 @end deftypefn */) |
2075 | 486 { |
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487 if (args.length () != 0) |
5823 | 488 print_usage (); |
2075 | 489 |
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490 if (interp.at_top_level ()) |
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491 error ("fork: cannot be called from command line"); |
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492 |
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493 std::string msg; |
2669 | 494 |
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495 pid_t pid = octave::sys::fork (msg); |
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496 |
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497 return ovl (pid, msg); |
2075 | 498 } |
499 | |
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500 DEFUNX ("getpgrp", Fgetpgrp, args, , |
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501 doc: /* -*- texinfo -*- |
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502 @deftypefn {} {pgid =} getpgrp () |
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503 Return the process group id of the current process. |
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504 @end deftypefn */) |
2075 | 505 { |
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506 if (args.length () != 0) |
5823 | 507 print_usage (); |
2075 | 508 |
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509 std::string msg; |
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510 |
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511 pid_t pid = octave::sys::getpgrp (msg); |
2075 | 512 |
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513 return ovl (pid, msg); |
2075 | 514 } |
515 | |
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516 DEFUNX ("getpid", Fgetpid, args, , |
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517 doc: /* -*- texinfo -*- |
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518 @deftypefn {} {pid =} getpid () |
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519 Return the process id of the current process. |
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520 @seealso{getppid} |
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521 @end deftypefn */) |
2075 | 522 { |
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523 if (args.length () != 0) |
5823 | 524 print_usage (); |
2075 | 525 |
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526 return ovl (octave::sys::getpid ()); |
2075 | 527 } |
528 | |
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529 DEFUNX ("getppid", Fgetppid, args, , |
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530 doc: /* -*- texinfo -*- |
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531 @deftypefn {} {pid =} getppid () |
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532 Return the process id of the parent process. |
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533 @seealso{getpid} |
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534 @end deftypefn */) |
2075 | 535 { |
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536 if (args.length () != 0) |
5823 | 537 print_usage (); |
2475 | 538 |
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539 return ovl (octave::sys::getppid ()); |
2475 | 540 } |
541 | |
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542 DEFUNX ("getegid", Fgetegid, args, , |
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543 doc: /* -*- texinfo -*- |
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544 @deftypefn {} {egid =} getegid () |
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545 Return the effective group id of the current process. |
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546 @seealso{getgid} |
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547 @end deftypefn */) |
2475 | 548 { |
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549 if (args.length () != 0) |
5823 | 550 print_usage (); |
2475 | 551 |
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552 return ovl (octave::sys::getegid ()); |
2475 | 553 } |
554 | |
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555 DEFUNX ("getgid", Fgetgid, args, , |
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556 doc: /* -*- texinfo -*- |
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557 @deftypefn {} {gid =} getgid () |
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558 Return the real group id of the current process. |
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559 @seealso{getegid} |
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560 @end deftypefn */) |
2475 | 561 { |
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562 if (args.length () != 0) |
5823 | 563 print_usage (); |
2075 | 564 |
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565 return ovl (octave::sys::getgid ()); |
2075 | 566 } |
567 | |
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568 DEFUNX ("geteuid", Fgeteuid, args, , |
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569 doc: /* -*- texinfo -*- |
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570 @deftypefn {} {euid =} geteuid () |
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571 Return the effective user id of the current process. |
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572 @seealso{getuid} |
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573 @end deftypefn */) |
2472 | 574 { |
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575 if (args.length () != 0) |
5823 | 576 print_usage (); |
2473 | 577 |
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578 return ovl (octave::sys::geteuid ()); |
2472 | 579 } |
580 | |
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581 DEFUNX ("getuid", Fgetuid, args, , |
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582 doc: /* -*- texinfo -*- |
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583 @deftypefn {} {uid =} getuid () |
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584 Return the real user id of the current process. |
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585 @seealso{geteuid} |
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586 @end deftypefn */) |
2472 | 587 { |
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588 if (args.length () != 0) |
5823 | 589 print_usage (); |
2473 | 590 |
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591 return ovl (octave::sys::getuid ()); |
2472 | 592 } |
593 | |
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594 DEFUNX ("kill", Fkill, args, , |
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595 doc: /* -*- texinfo -*- |
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596 @deftypefn {} {[@var{err}, @var{msg}] =} kill (@var{pid}, @var{sig}) |
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597 Send signal @var{sig} to process @var{pid}. |
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598 |
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599 If @var{pid} is positive, then signal @var{sig} is sent to @var{pid}. |
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600 |
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601 If @var{pid} is 0, then signal @var{sig} is sent to every process |
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602 in the process group of the current process. |
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603 |
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604 If @var{pid} is -1, then signal @var{sig} is sent to every process |
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605 except process 1. |
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606 |
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607 If @var{pid} is less than -1, then signal @var{sig} is sent to every |
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608 process in the process group @var{-pid}. |
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609 |
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610 If @var{sig} is 0, then no signal is sent, but error checking is still |
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611 performed. |
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612 |
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613 Return 0 if successful, otherwise return -1. |
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614 @end deftypefn */) |
4294 | 615 { |
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616 if (args.length () != 2) |
5823 | 617 print_usage (); |
4294 | 618 |
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619 pid_t pid = args(0).int_value (true); |
20560
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620 |
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621 int sig = args(1).int_value (true); |
4294 | 622 |
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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623 std::string msg; |
4294 | 624 |
21727
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625 int status = octave::sys::kill (pid, sig, msg); |
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626 |
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627 return ovl (status, msg); |
4294 | 628 } |
629 | |
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630 DEFUNX ("lstat", Flstat, args, , |
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631 doc: /* -*- texinfo -*- |
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632 @deftypefn {} {@var{info} =} lstat (@var{symlink}) |
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633 @deftypefnx {} {[@var{info}, @var{err}, @var{msg}] =} lstat (@var{symlink}) |
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634 Return a structure @var{info} containing information about the symbolic link |
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635 @var{symlink}. |
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636 |
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637 The function outputs are described in the documentation for @code{stat}. |
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638 @seealso{stat, symlink} |
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639 @end deftypefn */) |
2075 | 640 { |
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641 if (args.length () != 1) |
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642 print_usage (); |
2075 | 643 |
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644 std::string fname = args(0).xstring_value ("lstat: NAME must be a string"); |
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645 |
21736
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646 octave::sys::file_stat fs (fname, false); |
2075 | 647 |
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648 return mk_stat_result (fs); |
2075 | 649 } |
650 | |
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651 // FIXME: This routine also exists verbatim in file-io.cc. |
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652 // Maybe change to be a general utility routine. |
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653 static int |
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654 convert (int x, int ibase, int obase) |
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655 { |
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656 int retval = 0; |
2075 | 657 |
20200
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658 int tmp = x % obase; |
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659 |
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|
660 if (tmp > ibase - 1) |
20428
7ac907da9fba
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661 error ("mkfifo: invalid digit"); |
2075 | 662 |
21055
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663 retval = tmp; |
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664 int mult = ibase; |
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665 while ((x = (x - tmp) / obase)) |
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666 { |
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667 tmp = x % obase; |
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|
668 |
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|
669 if (tmp > ibase - 1) |
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670 error ("mkfifo: invalid digit"); |
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671 |
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672 retval += mult * tmp; |
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673 mult *= ibase; |
2075 | 674 } |
675 | |
676 return retval; | |
677 } | |
678 | |
10197
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679 DEFUNX ("mkfifo", Fmkfifo, args, , |
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680 doc: /* -*- texinfo -*- |
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681 @deftypefn {} {@var{err} =} mkfifo (@var{name}, @var{mode}) |
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682 @deftypefnx {} {[@var{err}, @var{msg}] =} mkfifo (@var{name}, @var{mode}) |
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683 Create a FIFO special file named @var{name} with file mode @var{mode}. |
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684 |
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685 @var{mode} is interpreted as an octal number and is subject to umask |
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686 processing. The final calculated mode is @code{@var{mode} - @var{umask}}. |
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687 |
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688 If successful, @var{err} is 0 and @var{msg} is an empty string. |
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689 Otherwise, @var{err} is nonzero and @var{msg} contains a system-dependent |
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690 error message. |
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691 @seealso{pipe, umask} |
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692 @end deftypefn */) |
2075 | 693 { |
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694 if (args.length () != 2) |
5823 | 695 print_usage (); |
2075 | 696 |
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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697 std::string name = args(0).xstring_value ("mkfifo: FILE must be a string"); |
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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|
698 |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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699 int octal_mode = args(1).xint_value ("mkfifo: MODE must be an integer"); |
4254 | 700 |
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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701 if (octal_mode < 0) |
b3a18c764161
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|
702 error ("mkfifo: MODE must be a positive integer value"); |
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2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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|
703 |
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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|
704 int mode = convert (octal_mode, 8, 10); |
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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diff
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|
705 |
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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|
706 std::string msg; |
20856
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diff
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|
707 |
21733
cb0fdd941d84
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21732
diff
changeset
|
708 int status = octave::sys::mkfifo (name, mode, msg); |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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parents:
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diff
changeset
|
709 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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diff
changeset
|
710 return ovl (status, msg); |
2075 | 711 } |
712 | |
20200
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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|
713 /* |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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diff
changeset
|
714 |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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changeset
|
715 ## Test input validation |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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|
716 %!error mkfifo () |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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|
717 %!error mkfifo ("abc") |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
Rik <rik@octave.org>
parents:
20198
diff
changeset
|
718 %!error mkfifo ("abc", 777, 123) |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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parents:
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diff
changeset
|
719 %!error <FILE must be a string> mkfifo (123, 456) |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
Rik <rik@octave.org>
parents:
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diff
changeset
|
720 ## FIXME: These tests should work, but lasterr is not being set correctly. |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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parents:
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diff
changeset
|
721 #%!error <MODE must be an integer> mkfifo ("abc", {456}) |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
Rik <rik@octave.org>
parents:
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diff
changeset
|
722 #%!error <MODE must be a positive integer value> mkfifo ("abc", -1) |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
Rik <rik@octave.org>
parents:
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diff
changeset
|
723 |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
Rik <rik@octave.org>
parents:
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diff
changeset
|
724 */ |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
Rik <rik@octave.org>
parents:
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diff
changeset
|
725 |
23738
8acd390d16c9
don't use singleton for stream_list object
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changeset
|
726 DEFMETHODX ("pipe", Fpipe, interp, args, , |
8acd390d16c9
don't use singleton for stream_list object
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|
727 doc: /* -*- texinfo -*- |
21966
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|
728 @deftypefn {} {[@var{read_fd}, @var{write_fd}, @var{err}, @var{msg}] =} pipe () |
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move docstrings in C++ files out of C strings and into comments
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|
729 Create a pipe and return the reading and writing ends of the pipe into |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
730 @var{read_fd} and @var{write_fd} respectively. |
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|
731 |
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|
732 If successful, @var{err} is 0 and @var{msg} is an empty string. |
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|
733 Otherwise, @var{err} is nonzero and @var{msg} contains a system-dependent |
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|
734 error message. |
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|
735 @seealso{mkfifo} |
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move docstrings in C++ files out of C strings and into comments
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736 @end deftypefn */) |
2075 | 737 { |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
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diff
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|
738 if (args.length () != 0) |
5823 | 739 print_usage (); |
2075 | 740 |
20856
b3a18c764161
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|
741 int fid[2]; |
b3a18c764161
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diff
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|
742 std::string msg; |
b3a18c764161
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|
743 |
21727
e0da98857c19
rename octave::syscalls namespace to octave::sys
John W. Eaton <jwe@octave.org>
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diff
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|
744 int status = octave::sys::pipe (fid, msg); |
2669 | 745 |
20856
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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diff
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|
746 if (status < 0) |
20887
05125a9eb9c6
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Rik <rik@octave.org>
parents:
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|
747 return ovl (-1, -1, -1, msg); |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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diff
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|
748 else |
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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749 { |
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|
750 FILE *ifile = fdopen (fid[0], "r"); |
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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|
751 FILE *ofile = fdopen (fid[1], "w"); |
4327 | 752 |
23059
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John W. Eaton <jwe@octave.org>
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diff
changeset
|
753 octave::stream is |
22407
34ce5be04942
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Rik <rik@octave.org>
parents:
22323
diff
changeset
|
754 = octave_stdiostream::create ("pipe-in", ifile, std::ios::in); |
2075 | 755 |
23059
b98ebcd7f11c
move some octave stream classes into octave namespace
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
756 octave::stream os |
22407
34ce5be04942
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Rik <rik@octave.org>
parents:
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diff
changeset
|
757 = octave_stdiostream::create ("pipe-out", ofile, std::ios::out); |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
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diff
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|
758 |
23738
8acd390d16c9
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|
759 octave::stream_list& streams = interp.get_stream_list (); |
8acd390d16c9
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diff
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|
760 |
8acd390d16c9
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diff
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|
761 return ovl (streams.insert (is), streams.insert (os), status, msg); |
2075 | 762 } |
763 } | |
764 | |
23738
8acd390d16c9
don't use singleton for stream_list object
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diff
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|
765 DEFMETHODX ("stat", Fstat, interp, args, , |
8acd390d16c9
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diff
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|
766 doc: /* -*- texinfo -*- |
21966
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767 @deftypefn {} {[@var{info}, @var{err}, @var{msg}] =} stat (@var{file}) |
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768 @deftypefnx {} {[@var{info}, @var{err}, @var{msg}] =} stat (@var{fid}) |
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769 @deftypefnx {} {[@var{info}, @var{err}, @var{msg}] =} lstat (@var{file}) |
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move docstrings in C++ files out of C strings and into comments
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770 @deftypefnx {} {[@var{info}, @var{err}, @var{msg}] =} lstat (@var{fid}) |
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771 Return a structure @var{info} containing the following information about |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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772 @var{file} or file identifier @var{fid}. |
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|
773 |
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|
774 @table @code |
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775 @item dev |
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776 ID of device containing a directory entry for this file. |
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|
777 |
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778 @item ino |
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|
779 File number of the file. |
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changeset
|
780 |
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|
781 @item mode |
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|
782 File mode, as an integer. Use the functions @w{@code{S_ISREG}}, |
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783 @w{@code{S_ISDIR}}, @w{@code{S_ISCHR}}, @w{@code{S_ISBLK}}, |
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move docstrings in C++ files out of C strings and into comments
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784 @w{@code{S_ISFIFO}}, @w{@code{S_ISLNK}}, or @w{@code{S_ISSOCK}} to extract |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
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785 information from this value. |
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diff
changeset
|
786 |
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parents:
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|
787 @item modestr |
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parents:
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diff
changeset
|
788 File mode, as a string of ten letters or dashes as would be returned by |
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789 @kbd{ls -l}. |
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move docstrings in C++ files out of C strings and into comments
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|
790 |
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791 @item nlink |
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792 Number of links. |
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diff
changeset
|
793 |
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|
794 @item uid |
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diff
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|
795 User ID of file's owner. |
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|
796 |
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797 @item gid |
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798 Group ID of file's group. |
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799 |
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800 @item rdev |
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801 ID of device for block or character special files. |
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diff
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|
802 |
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|
803 @item size |
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|
804 Size in bytes. |
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diff
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|
805 |
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806 @item atime |
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807 Time of last access in the same form as time values returned from |
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808 @code{time}. @xref{Timing Utilities}. |
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diff
changeset
|
809 |
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|
810 @item mtime |
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811 Time of last modification in the same form as time values returned from |
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812 @code{time}. @xref{Timing Utilities}. |
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813 |
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|
814 @item ctime |
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815 Time of last file status change in the same form as time values |
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816 returned from @code{time}. @xref{Timing Utilities}. |
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817 |
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818 @item blksize |
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819 Size of blocks in the file. |
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820 |
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821 @item blocks |
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822 Number of blocks allocated for file. |
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823 @end table |
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824 |
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825 If the call is successful @var{err} is 0 and @var{msg} is an empty string. |
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826 If the file does not exist, or some other error occurs, @var{info} is an |
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827 empty matrix, @var{err} is @minus{}1, and @var{msg} contains the |
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828 corresponding system error message. |
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829 |
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830 If @var{file} is a symbolic link, @code{stat} will return information about |
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831 the actual file that is referenced by the link. Use @code{lstat} if you |
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832 want information about the symbolic link itself. |
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833 |
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834 For example: |
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835 |
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|
836 @example |
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|
837 [info, err, msg] = stat ("/vmlinuz") |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
838 @result{} info = |
112b20240c87
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diff
changeset
|
839 @{ |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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840 atime = 855399756 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
841 rdev = 0 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
842 ctime = 847219094 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
843 uid = 0 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
844 size = 389218 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
845 blksize = 4096 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
846 mtime = 847219094 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
847 gid = 6 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
848 nlink = 1 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
849 blocks = 768 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
850 mode = -rw-r--r-- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
851 modestr = -rw-r--r-- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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changeset
|
852 ino = 9316 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
853 dev = 2049 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
854 @} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
855 @result{} err = 0 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
856 @result{} msg = |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
857 @end example |
25782
0862570da0ae
isfile.m: New function for Matlab compatibility (bug #54508).
Rik <rik@octave.org>
parents:
25781
diff
changeset
|
858 @seealso{lstat, ls, dir, isfile, isfolder} |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
859 @end deftypefn */) |
2075 | 860 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
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diff
changeset
|
861 if (args.length () != 1) |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
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diff
changeset
|
862 print_usage (); |
2075 | 863 |
2262 | 864 octave_value_list retval; |
2075 | 865 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
866 if (args(0).is_scalar_type ()) |
2075 | 867 { |
23738
8acd390d16c9
don't use singleton for stream_list object
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
868 octave::stream_list& streams = interp.get_stream_list (); |
8acd390d16c9
don't use singleton for stream_list object
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changeset
|
869 |
8acd390d16c9
don't use singleton for stream_list object
John W. Eaton <jwe@octave.org>
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diff
changeset
|
870 int fid = streams.get_file_number (args(0)); |
10336
1603dfe72933
obsolete fstat, handle the functionality by stat
Jaroslav Hajek <highegg@gmail.com>
parents:
10315
diff
changeset
|
871 |
21737
ab6c639f0678
finish previous changeset (0504351a45e6).
John W. Eaton <jwe@octave.org>
parents:
21736
diff
changeset
|
872 octave::sys::file_fstat fs (fid); |
10336
1603dfe72933
obsolete fstat, handle the functionality by stat
Jaroslav Hajek <highegg@gmail.com>
parents:
10315
diff
changeset
|
873 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
874 retval = mk_stat_result (fs); |
2075 | 875 } |
876 else | |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
877 { |
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
878 std::string fname = args(0).xstring_value ("stat: NAME must be a string"); |
10336
1603dfe72933
obsolete fstat, handle the functionality by stat
Jaroslav Hajek <highegg@gmail.com>
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10315
diff
changeset
|
879 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
880 octave::sys::file_stat fs (fname); |
10336
1603dfe72933
obsolete fstat, handle the functionality by stat
Jaroslav Hajek <highegg@gmail.com>
parents:
10315
diff
changeset
|
881 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
882 retval = mk_stat_result (fs); |
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
883 } |
2075 | 884 |
885 return retval; | |
886 } | |
887 | |
5476 | 888 DEFUNX ("S_ISREG", FS_ISREG, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
889 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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21949
diff
changeset
|
890 @deftypefn {} {} S_ISREG (@var{mode}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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21949
diff
changeset
|
891 Return true if @var{mode} corresponds to a regular file. |
112b20240c87
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John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
892 |
112b20240c87
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John W. Eaton <jwe@octave.org>
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changeset
|
893 The value of @var{mode} is assumed to be returned from a call to |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
894 @code{stat}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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diff
changeset
|
895 @seealso{stat, lstat} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
21949
diff
changeset
|
896 @end deftypefn */) |
5476 | 897 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
898 if (args.length () != 1) |
5823 | 899 print_usage (); |
5476 | 900 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
901 double mode = args(0).xdouble_value ("S_ISREG: invalid MODE value"); |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
902 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
903 return ovl (octave::sys::file_stat::is_reg (static_cast<mode_t> (mode))); |
5476 | 904 } |
905 | |
906 DEFUNX ("S_ISDIR", FS_ISDIR, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
21949
diff
changeset
|
907 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
908 @deftypefn {} {} S_ISDIR (@var{mode}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
909 Return true if @var{mode} corresponds to a directory. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
910 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
911 The value of @var{mode} is assumed to be returned from a call to |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
912 @code{stat}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
913 @seealso{stat, lstat} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
914 @end deftypefn */) |
5476 | 915 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
916 if (args.length () != 1) |
5823 | 917 print_usage (); |
5476 | 918 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
919 double mode = args(0).xdouble_value ("S_ISDIR: invalid MODE value"); |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
920 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
921 return ovl (octave::sys::file_stat::is_dir (static_cast<mode_t> (mode))); |
5476 | 922 } |
923 | |
924 DEFUNX ("S_ISCHR", FS_ISCHR, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
925 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
926 @deftypefn {} {} S_ISCHR (@var{mode}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
927 Return true if @var{mode} corresponds to a character device. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
928 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
929 The value of @var{mode} is assumed to be returned from a call to |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
930 @code{stat}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
931 @seealso{stat, lstat} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
932 @end deftypefn */) |
5476 | 933 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
934 if (args.length () != 1) |
5823 | 935 print_usage (); |
5476 | 936 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
937 double mode = args(0).xdouble_value ("S_ISCHR: invalid MODE value"); |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
938 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
939 return ovl (octave::sys::file_stat::is_chr (static_cast<mode_t> (mode))); |
5476 | 940 } |
941 | |
942 DEFUNX ("S_ISBLK", FS_ISBLK, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
943 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
944 @deftypefn {} {} S_ISBLK (@var{mode}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
945 Return true if @var{mode} corresponds to a block device. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
946 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
947 The value of @var{mode} is assumed to be returned from a call to |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
948 @code{stat}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
949 @seealso{stat, lstat} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
950 @end deftypefn */) |
5476 | 951 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
952 if (args.length () != 1) |
5823 | 953 print_usage (); |
5476 | 954 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
955 double mode = args(0).xdouble_value ("S_ISBLK: invalid MODE value"); |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
956 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
957 return ovl (octave::sys::file_stat::is_blk (static_cast<mode_t> (mode))); |
5476 | 958 } |
959 | |
960 DEFUNX ("S_ISFIFO", FS_ISFIFO, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
961 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
962 @deftypefn {} {} S_ISFIFO (@var{mode}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
963 Return true if @var{mode} corresponds to a fifo. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
964 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
965 The value of @var{mode} is assumed to be returned from a call to |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
966 @code{stat}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
967 @seealso{stat, lstat} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
968 @end deftypefn */) |
5476 | 969 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
970 if (args.length () != 1) |
5823 | 971 print_usage (); |
5476 | 972 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
973 double mode = args(0).xdouble_value ("S_ISFIFO: invalid MODE value"); |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
974 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
975 return ovl (octave::sys::file_stat::is_fifo (static_cast<mode_t> (mode))); |
5476 | 976 } |
977 | |
978 DEFUNX ("S_ISLNK", FS_ISLNK, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
979 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
980 @deftypefn {} {} S_ISLNK (@var{mode}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
981 Return true if @var{mode} corresponds to a symbolic link. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
982 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
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changeset
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983 The value of @var{mode} is assumed to be returned from a call to |
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984 @code{stat}. |
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985 @seealso{stat, lstat} |
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986 @end deftypefn */) |
5476 | 987 { |
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988 if (args.length () != 1) |
5823 | 989 print_usage (); |
5476 | 990 |
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991 double mode = args(0).xdouble_value ("S_ISLNK: invalid MODE value"); |
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992 |
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993 return ovl (octave::sys::file_stat::is_lnk (static_cast<mode_t> (mode))); |
5476 | 994 } |
995 | |
996 DEFUNX ("S_ISSOCK", FS_ISSOCK, args, , | |
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997 doc: /* -*- texinfo -*- |
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998 @deftypefn {} {} S_ISSOCK (@var{mode}) |
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999 Return true if @var{mode} corresponds to a socket. |
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1000 |
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1001 The value of @var{mode} is assumed to be returned from a call to |
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1002 @code{stat}. |
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1003 @seealso{stat, lstat} |
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1004 @end deftypefn */) |
5476 | 1005 { |
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1006 if (args.length () != 1) |
5823 | 1007 print_usage (); |
5476 | 1008 |
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1009 double mode = args(0).xdouble_value ("S_ISSOCK: invalid MODE value"); |
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1010 |
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1011 return ovl (octave::sys::file_stat::is_sock (static_cast<mode_t> (mode))); |
5476 | 1012 } |
1013 | |
11006
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1014 DEFUN (gethostname, args, , |
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1015 doc: /* -*- texinfo -*- |
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1016 @deftypefn {} {} gethostname () |
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1017 Return the hostname of the system where Octave is running. |
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1018 @end deftypefn */) |
11006
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1019 { |
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1020 if (args.length () != 0) |
11006
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1021 print_usage (); |
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1022 |
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1023 return ovl (octave::sys::env::get_host_name ()); |
11006
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1024 } |
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1025 |
5547 | 1026 DEFUN (uname, args, , |
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1027 doc: /* -*- texinfo -*- |
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1028 @deftypefn {} {[@var{uts}, @var{err}, @var{msg}] =} uname () |
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1029 Return system information in the structure. |
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1030 |
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1031 For example: |
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1032 |
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1033 @example |
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1034 @group |
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1035 uname () |
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1036 @result{} @{ |
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1037 sysname = x86_64 |
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1038 nodename = segfault |
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1039 release = 2.6.15-1-amd64-k8-smp |
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1040 version = Linux |
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1041 machine = #2 SMP Thu Feb 23 04:57:49 UTC 2006 |
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1042 @} |
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1043 @end group |
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1044 @end example |
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1045 |
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1046 If successful, @var{err} is 0 and @var{msg} is an empty string. |
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1047 Otherwise, @var{err} is nonzero and @var{msg} contains a |
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1048 system-dependent error message. |
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1049 @end deftypefn */) |
5547 | 1050 { |
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1051 if (args.length () != 0) |
5823 | 1052 print_usage (); |
5547 | 1053 |
21731
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1054 octave::sys::uname sysinfo; |
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1055 |
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1056 octave_scalar_map m; |
5547 | 1057 |
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1058 m.assign ("sysname", sysinfo.sysname ()); |
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1059 m.assign ("nodename", sysinfo.nodename ()); |
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1060 m.assign ("release", sysinfo.release ()); |
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1061 m.assign ("version", sysinfo.version ()); |
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1062 m.assign ("machine", sysinfo.machine ()); |
5547 | 1063 |
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1064 return ovl (m, sysinfo.error (), sysinfo.message ()); |
5547 | 1065 } |
1066 | |
23957
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1067 /* |
26946
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1068 %!test <*51869> |
23957
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1069 %! [info, status, msg] = uname (); |
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1070 %! if (status == 0) |
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1071 %! assert (isstruct (info)) |
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1072 %! assert (ischar (msg) && isempty (msg)) |
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1073 %! endif |
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1074 */ |
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1075 |
27261
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1076 DEFMETHODX ("unlink", Funlink, interp, args, , |
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1077 doc: /* -*- texinfo -*- |
21966
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1078 @deftypefn {} {[@var{err}, @var{msg}] =} unlink (@var{file}) |
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1079 Delete the file named @var{file}. |
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1080 |
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1081 If successful, @var{err} is 0 and @var{msg} is an empty string. |
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1082 Otherwise, @var{err} is nonzero and @var{msg} contains a system-dependent |
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1083 error message. |
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1084 @seealso{delete, rmdir} |
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1085 @end deftypefn */) |
2075 | 1086 { |
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1087 if (args.length () != 1) |
5823 | 1088 print_usage (); |
2075 | 1089 |
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1090 std::string name = args(0).xstring_value ("unlink: FILE must be a string"); |
2669 | 1091 |
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1092 std::string msg; |
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1093 |
27263
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1094 octave::event_manager& evmgr = interp.get_event_manager (); |
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1095 |
27263
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1096 evmgr.file_remove (name, ""); |
25742
d3c6de326bae
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1097 |
21733
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1098 int status = octave::sys::unlink (name, msg); |
2669 | 1099 |
27263
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1100 evmgr.file_renamed (status == 0); |
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1101 |
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1102 return ovl (status, msg); |
2075 | 1103 } |
1104 | |
27040
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1105 /* |
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1106 %!test |
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1107 %! file = tempname (); |
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1108 %! fid = fopen (file, "wt"); |
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1109 %! if (fid < 0) |
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1110 %! error ("Could not open temporary file for unlink BIST test"); |
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1111 %! endif |
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1112 %! fdisp (fid, pi); |
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1113 %! fclose (fid); |
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1114 %! [err, msg] = unlink (file); |
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1115 %! assert (err, 0); |
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1116 %! assert (msg, ""); |
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1117 |
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1118 ## Test input validation |
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1119 %!error unlink () |
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1120 %!error unlink ("a", "b") |
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1121 %!error <FILE must be a string> unlink (123) |
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1122 */ |
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1123 |
10299
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1124 DEFUNX ("waitpid", Fwaitpid, args, , |
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1125 doc: /* -*- texinfo -*- |
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1126 @deftypefn {} {[@var{pid}, @var{status}, @var{msg}] =} waitpid (@var{pid}, @var{options}) |
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1127 Wait for process @var{pid} to terminate. |
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1128 |
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1129 The @var{pid} argument can be: |
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1130 |
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1131 @table @asis |
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1132 @item @minus{}1 |
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1133 Wait for any child process. |
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1134 |
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1135 @item 0 |
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1136 Wait for any child process whose process group ID is equal to that of the |
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1137 Octave interpreter process. |
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1138 |
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1139 @item > 0 |
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1140 Wait for termination of the child process with ID @var{pid}. |
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1141 @end table |
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1142 |
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1143 The @var{options} argument can be a bitwise OR of zero or more of the |
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1144 following constants: |
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1145 |
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1146 @table @code |
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1147 @item 0 |
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1148 Wait until signal is received or a child process exits (this is the default |
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1149 if the @var{options} argument is missing). |
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1150 |
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1151 @item WNOHANG |
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1152 Do not hang if status is not immediately available. |
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1153 |
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1154 @item WUNTRACED |
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1155 Report the status of any child processes that are stopped, and whose status |
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1156 has not yet been reported since they stopped. |
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1157 |
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1158 @item WCONTINUE |
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1159 Return if a stopped child has been resumed by delivery of @code{SIGCONT}. |
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1160 This value may not be meaningful on all systems. |
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1161 @end table |
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1162 |
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1163 If the returned value of @var{pid} is greater than 0, it is the process ID |
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1164 of the child process that exited. If an error occurs, @var{pid} will be |
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1165 less than zero and @var{msg} will contain a system-dependent error message. |
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1166 The value of @var{status} contains additional system-dependent information |
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1167 about the subprocess that exited. |
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1168 @seealso{WCONTINUE, WCOREDUMP, WEXITSTATUS, WIFCONTINUED, WIFSIGNALED, WIFSTOPPED, WNOHANG, WSTOPSIG, WTERMSIG, WUNTRACED} |
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|
1169 @end deftypefn */) |
2075 | 1170 { |
1171 int nargin = args.length (); | |
1172 | |
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|
1173 if (nargin != 1 && nargin != 2) |
5823 | 1174 print_usage (); |
2075 | 1175 |
20856
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|
1176 pid_t pid = args(0).xint_value ("waitpid: OPTIONS must be an integer"); |
11586
12df7854fa7c
strip trailing whitespace from source files
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|
1177 |
20856
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|
1178 int options = 0; |
2075 | 1179 |
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Rik <rik@octave.org>
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|
1180 if (nargin == 2) |
20856
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|
1181 options = args(1).xint_value ("waitpid: PID must be an integer value"); |
2669 | 1182 |
20856
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|
1183 std::string msg; |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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|
1184 int status; |
20856
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|
1185 |
21727
e0da98857c19
rename octave::syscalls namespace to octave::sys
John W. Eaton <jwe@octave.org>
parents:
21724
diff
changeset
|
1186 pid_t result = octave::sys::waitpid (pid, &status, options, msg); |
2075 | 1187 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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|
1188 return ovl (result, status, msg); |
2075 | 1189 } |
1190 | |
5453 | 1191 DEFUNX ("WIFEXITED", FWIFEXITED, args, , |
21966
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1192 doc: /* -*- texinfo -*- |
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1193 @deftypefn {} {} WIFEXITED (@var{status}) |
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1194 Given @var{status} from a call to @code{waitpid}, return |
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1195 true if the child terminated normally. |
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1196 @seealso{waitpid, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED} |
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1197 @end deftypefn */) |
5453 | 1198 { |
20856
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1199 if (args.length () != 1) |
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|
1200 print_usage (); |
5453 | 1201 |
20856
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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|
1202 int status = args(0).xint_value ("WIFEXITED: STATUS must be an integer"); |
5453 | 1203 |
21921
ecfcc8527661
hide sys/wait.h header and provide wrappers for waitpid macros
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21911
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|
1204 return ovl (octave::sys::wifexited (status)); |
5453 | 1205 } |
1206 | |
1207 DEFUNX ("WEXITSTATUS", FWEXITSTATUS, args, , | |
21966
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|
1208 doc: /* -*- texinfo -*- |
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1209 @deftypefn {} {} WEXITSTATUS (@var{status}) |
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1210 Given @var{status} from a call to @code{waitpid}, return |
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1211 the exit status of the child. |
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1212 |
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1213 This function should only be employed if @code{WIFEXITED} returned true. |
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1214 @seealso{waitpid, WIFEXITED, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED} |
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1215 @end deftypefn */) |
5453 | 1216 { |
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1217 if (args.length () != 1) |
05125a9eb9c6
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|
1218 print_usage (); |
5453 | 1219 |
20887
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1220 int status = args(0).xint_value ("WEXITSTATUS: STATUS must be an integer"); |
5453 | 1221 |
21921
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21911
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|
1222 return ovl (octave::sys::wexitstatus (status)); |
5453 | 1223 } |
1224 | |
1225 DEFUNX ("WIFSIGNALED", FWIFSIGNALED, args, , | |
21966
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1226 doc: /* -*- texinfo -*- |
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1227 @deftypefn {} {} WIFSIGNALED (@var{status}) |
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1228 Given @var{status} from a call to @code{waitpid}, return |
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1229 true if the child process was terminated by a signal. |
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1230 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED} |
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1231 @end deftypefn */) |
5453 | 1232 { |
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1233 if (args.length () != 1) |
b3a18c764161
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|
1234 print_usage (); |
5453 | 1235 |
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1236 int status = args(0).xint_value ("WIFSIGNALED: STATUS must be an integer"); |
5453 | 1237 |
21921
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changeset
|
1238 return ovl (octave::sys::wifsignaled (status)); |
5453 | 1239 } |
1240 | |
1241 DEFUNX ("WTERMSIG", FWTERMSIG, args, , | |
21966
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1242 doc: /* -*- texinfo -*- |
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1243 @deftypefn {} {} WTERMSIG (@var{status}) |
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1244 Given @var{status} from a call to @code{waitpid}, return |
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1245 the number of the signal that caused the child process to terminate. |
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1246 |
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1247 This function should only be employed if @code{WIFSIGNALED} returned true. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1248 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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21949
diff
changeset
|
1249 @end deftypefn */) |
5453 | 1250 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1251 if (args.length () != 1) |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1252 print_usage (); |
5453 | 1253 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1254 int status = args(0).xint_value ("WTERMSIG: STATUS must be an integer"); |
5453 | 1255 |
21921
ecfcc8527661
hide sys/wait.h header and provide wrappers for waitpid macros
John W. Eaton <jwe@octave.org>
parents:
21911
diff
changeset
|
1256 return ovl (octave::sys::wtermsig (status)); |
5453 | 1257 } |
1258 | |
1259 DEFUNX ("WCOREDUMP", FWCOREDUMP, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1260 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1261 @deftypefn {} {} WCOREDUMP (@var{status}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1262 Given @var{status} from a call to @code{waitpid}, return |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1263 true if the child produced a core dump. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1264 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1265 This function should only be employed if @code{WIFSIGNALED} returned true. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1266 The macro used to implement this function is not specified in POSIX.1-2001 |
25003
2365c2661b3c
doc: Spellcheck documentation ahead of 4.4 release.
Rik <rik@octave.org>
parents:
24534
diff
changeset
|
1267 and is not available on some Unix implementations (e.g., @nospell{AIX, SunOS}). |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1268 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WIFSTOPPED, WSTOPSIG, WIFCONTINUED} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1269 @end deftypefn */) |
5453 | 1270 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1271 if (args.length () != 1) |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1272 print_usage (); |
5453 | 1273 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1274 int status = args(0).xint_value ("WCOREDUMP: STATUS must be an integer"); |
5453 | 1275 |
21921
ecfcc8527661
hide sys/wait.h header and provide wrappers for waitpid macros
John W. Eaton <jwe@octave.org>
parents:
21911
diff
changeset
|
1276 return ovl (octave::sys::wcoredump (status)); |
5453 | 1277 } |
1278 | |
1279 DEFUNX ("WIFSTOPPED", FWIFSTOPPED, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1280 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1281 @deftypefn {} {} WIFSTOPPED (@var{status}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1282 Given @var{status} from a call to @code{waitpid}, return |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1283 true if the child process was stopped by delivery of a signal. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1284 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1285 This is only possible if the call was done using @code{WUNTRACED} or when |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
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diff
changeset
|
1286 the child is being traced (see ptrace(2)). |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1287 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WSTOPSIG, WIFCONTINUED} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1288 @end deftypefn */) |
5453 | 1289 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1290 if (args.length () != 1) |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1291 print_usage (); |
5453 | 1292 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1293 int status = args(0).xint_value ("WIFSTOPPED: STATUS must be an integer"); |
5453 | 1294 |
21921
ecfcc8527661
hide sys/wait.h header and provide wrappers for waitpid macros
John W. Eaton <jwe@octave.org>
parents:
21911
diff
changeset
|
1295 return ovl (octave::sys::wifstopped (status)); |
5453 | 1296 } |
1297 | |
1298 DEFUNX ("WSTOPSIG", FWSTOPSIG, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1299 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1300 @deftypefn {} {} WSTOPSIG (@var{status}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1301 Given @var{status} from a call to @code{waitpid}, return |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1302 the number of the signal which caused the child to stop. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
1303 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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21949
diff
changeset
|
1304 This function should only be employed if @code{WIFSTOPPED} returned true. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1305 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WIFCONTINUED} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1306 @end deftypefn */) |
5453 | 1307 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1308 if (args.length () != 1) |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1309 print_usage (); |
5453 | 1310 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1311 int status = args(0).xint_value ("WSTOPSIG: STATUS must be an integer"); |
5453 | 1312 |
21921
ecfcc8527661
hide sys/wait.h header and provide wrappers for waitpid macros
John W. Eaton <jwe@octave.org>
parents:
21911
diff
changeset
|
1313 return ovl (octave::sys::wstopsig (status)); |
5453 | 1314 } |
1315 | |
1316 DEFUNX ("WIFCONTINUED", FWIFCONTINUED, args, , | |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
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21949
diff
changeset
|
1317 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1318 @deftypefn {} {} WIFCONTINUED (@var{status}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1319 Given @var{status} from a call to @code{waitpid}, return |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1320 true if the child process was resumed by delivery of @code{SIGCONT}. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1321 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
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21949
diff
changeset
|
1322 @end deftypefn */) |
5453 | 1323 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1324 if (args.length () != 1) |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1325 print_usage (); |
5453 | 1326 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1327 int status = args(0).xint_value ("WIFCONTINUED: STATUS must be an integer"); |
5453 | 1328 |
21921
ecfcc8527661
hide sys/wait.h header and provide wrappers for waitpid macros
John W. Eaton <jwe@octave.org>
parents:
21911
diff
changeset
|
1329 return ovl (octave::sys::wifcontinued (status)); |
5453 | 1330 } |
1331 | |
10249
14eba566f9f0
use DEFUNX instead of DEFUN for canonicalize_file_name
John W. Eaton <jwe@octave.org>
parents:
10197
diff
changeset
|
1332 DEFUNX ("canonicalize_file_name", Fcanonicalize_file_name, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1333 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
1334 @deftypefn {} {[@var{cname}, @var{status}, @var{msg}] =} canonicalize_file_name (@var{fname}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
1335 Return the canonical name of file @var{fname}. |
112b20240c87
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|
1336 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1337 If the file does not exist the empty string ("") is returned. |
27571
24618a510749
Polish implementation of is_same_file().
Rik <rik@octave.org>
parents:
27277
diff
changeset
|
1338 @seealso{make_absolute_filename, is_absolute_filename, is_rooted_relative_filename, is_same_file} |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
1339 @end deftypefn */) |
5138 | 1340 { |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1341 if (args.length () != 1) |
5823 | 1342 print_usage (); |
5138 | 1343 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1344 std::string name = args(0).xstring_value ("canonicalize_file_name: NAME must be a string"); |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
1345 |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
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diff
changeset
|
1346 std::string msg; |
20581
fd0efcdb3718
use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents:
20560
diff
changeset
|
1347 |
21733
cb0fdd941d84
use namespace for system file_ops class
John W. Eaton <jwe@octave.org>
parents:
21732
diff
changeset
|
1348 std::string result = octave::sys::canonicalize_file_name (name, msg); |
20856
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1349 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
1350 return ovl (result, msg.empty () ? 0 : -1, msg); |
5138 | 1351 } |
1352 | |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
1353 static inline octave_value |
7924 | 1354 const_value (const octave_value_list& args, int val) |
5749 | 1355 { |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
1356 if (args.length () != 0) |
5823 | 1357 print_usage (); |
5749 | 1358 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
1359 return octave_value (val); |
5749 | 1360 } |
1361 | |
21921
ecfcc8527661
hide sys/wait.h header and provide wrappers for waitpid macros
John W. Eaton <jwe@octave.org>
parents:
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changeset
|
1362 DEFUNX ("F_DUPFD", FF_DUPFD, args, , |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
1363 doc: /* -*- texinfo -*- |
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move docstrings in C++ files out of C strings and into comments
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changeset
|
1364 @deftypefn {} {} F_DUPFD () |
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move docstrings in C++ files out of C strings and into comments
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changeset
|
1365 Return the numerical value to pass to @code{fcntl} to return |
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move docstrings in C++ files out of C strings and into comments
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|
1366 a duplicate file descriptor. |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
1367 @seealso{fcntl, F_GETFD, F_GETFL, F_SETFD, F_SETFL} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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|
1368 @end deftypefn */) |
2075 | 1369 { |
21911 | 1370 static int val = octave_f_dupfd_wrapper (); |
1371 | |
1372 if (val < 0) | |
1373 err_disabled_feature ("F_DUPFD", "F_DUPFD"); | |
1374 | |
1375 return const_value (args, val); | |
14111
c5222658dc3c
doc: Build documentation for functions even when they are unavailable
Rik <octave@nomad.inbox5.com>
parents:
14022
diff
changeset
|
1376 } |
2075 | 1377 |
21921
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hide sys/wait.h header and provide wrappers for waitpid macros
John W. Eaton <jwe@octave.org>
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|
1378 DEFUNX ("F_GETFD", FF_GETFD, args, , |
21966
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move docstrings in C++ files out of C strings and into comments
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changeset
|
1379 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
1380 @deftypefn {} {} F_GETFD () |
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|
1381 Return the numerical value to pass to @code{fcntl} to return |
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move docstrings in C++ files out of C strings and into comments
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|
1382 the file descriptor flags. |
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move docstrings in C++ files out of C strings and into comments
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changeset
|
1383 @seealso{fcntl, F_DUPFD, F_GETFL, F_SETFD, F_SETFL} |
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move docstrings in C++ files out of C strings and into comments
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changeset
|
1384 @end deftypefn */) |
5749 | 1385 { |
21911 | 1386 static int val = octave_f_getfd_wrapper (); |
1387 | |
1388 if (val < 0) | |
1389 err_disabled_feature ("F_GETFD", "F_GETFD"); | |
1390 | |
1391 return const_value (args, val); | |
14111
c5222658dc3c
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Rik <octave@nomad.inbox5.com>
parents:
14022
diff
changeset
|
1392 } |
2075 | 1393 |
21921
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hide sys/wait.h header and provide wrappers for waitpid macros
John W. Eaton <jwe@octave.org>
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|
1394 DEFUNX ("F_GETFL", FF_GETFL, args, , |
21966
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move docstrings in C++ files out of C strings and into comments
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|
1395 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
1396 @deftypefn {} {} F_GETFL () |
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|
1397 Return the numerical value to pass to @code{fcntl} to return |
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1398 the file status flags. |
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1399 @seealso{fcntl, F_DUPFD, F_GETFD, F_SETFD, F_SETFL} |
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1400 @end deftypefn */) |
5749 | 1401 { |
21911 | 1402 static int val = octave_f_getfl_wrapper (); |
1403 | |
1404 if (val < 0) | |
1405 err_disabled_feature ("F_GETFL", "F_GETFL"); | |
1406 | |
1407 return const_value (args, val); | |
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1408 } |
2075 | 1409 |
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1410 DEFUNX ("F_SETFD", FF_SETFD, args, , |
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1411 doc: /* -*- texinfo -*- |
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1412 @deftypefn {} {} F_SETFD () |
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1413 Return the numerical value to pass to @code{fcntl} to set the file |
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1414 descriptor flags. |
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1415 @seealso{fcntl, F_DUPFD, F_GETFD, F_GETFL, F_SETFL} |
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1416 @end deftypefn */) |
5749 | 1417 { |
21911 | 1418 static int val = octave_f_setfd_wrapper (); |
1419 | |
1420 if (val < 0) | |
1421 err_disabled_feature ("F_SETFD", "F_SETFD"); | |
1422 | |
1423 return const_value (args, val); | |
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1424 } |
2075 | 1425 |
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1426 DEFUNX ("F_SETFL", FF_SETFL, args, , |
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1427 doc: /* -*- texinfo -*- |
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1428 @deftypefn {} {} F_SETFL () |
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1429 Return the numerical value to pass to @code{fcntl} to set the file |
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1430 status flags. |
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1431 @seealso{fcntl, F_DUPFD, F_GETFD, F_GETFL, F_SETFD} |
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|
1432 @end deftypefn */) |
5749 | 1433 { |
21911 | 1434 static int val = octave_f_setfl_wrapper (); |
1435 | |
1436 if (val < 0) | |
1437 err_disabled_feature ("F_SETFL", "F_SETFL"); | |
1438 | |
1439 return const_value (args, val); | |
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1440 } |
2075 | 1441 |
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1442 DEFUNX ("O_APPEND", FO_APPEND, args, , |
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1443 doc: /* -*- texinfo -*- |
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1444 @deftypefn {} {} O_APPEND () |
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1445 Return the numerical value of the @code{O_APPEND} macro. |
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1446 |
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1447 @code{O_APPEND} is file status flag that may be returned by @code{fcntl} |
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1448 to indicate each write operation appends, or that may be passed to |
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1449 @code{fcntl} to set the write mode to append. |
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1450 @seealso{fcntl, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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1451 @end deftypefn */) |
5749 | 1452 { |
21911 | 1453 static int val = octave_o_append_wrapper (); |
1454 | |
1455 if (val < 0) | |
1456 err_disabled_feature ("O_APPEND", "O_APPEND"); | |
1457 | |
1458 return const_value (args, val); | |
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1459 } |
2075 | 1460 |
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1461 DEFUNX ("O_ASYNC", FO_ASYNC, args, , |
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1462 doc: /* -*- texinfo -*- |
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1463 @deftypefn {} {} O_ASYNC () |
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1464 Return the numerical value of the @code{O_ASYNC} macro. |
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1465 |
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1466 @code{O_ASYNC} is the file status flag that may be returned by |
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1467 @code{fcntl} to indicate asynchronous I/O. |
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1468 @seealso{fcntl, O_APPEND, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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1469 @end deftypefn */) |
5749 | 1470 { |
21911 | 1471 static int val = octave_o_async_wrapper (); |
1472 | |
1473 if (val < 0) | |
1474 err_disabled_feature ("O_ASYNC", "O_ASYNC"); | |
1475 | |
1476 return const_value (args, val); | |
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1477 } |
2669 | 1478 |
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1479 DEFUNX ("O_CREAT", FO_CREAT, args, , |
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1480 doc: /* -*- texinfo -*- |
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1481 @deftypefn {} {} O_CREAT () |
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1482 Return the numerical value of the @code{O_CREAT}. |
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1483 |
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1484 @code{O_CREAT} is the file status flag that may be returned by |
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1485 @code{fcntl} to indicate that a file should be created if it does not |
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1486 exist. |
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1487 @seealso{fcntl, O_APPEND, O_ASYNC, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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|
1488 @end deftypefn */) |
5749 | 1489 { |
21911 | 1490 static int val = octave_o_creat_wrapper (); |
1491 | |
1492 if (val < 0) | |
1493 err_disabled_feature ("O_CREAT", "O_CREAT"); | |
1494 | |
1495 return const_value (args, val); | |
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1496 } |
2075 | 1497 |
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1498 DEFUNX ("O_EXCL", FO_EXCL, args, , |
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1499 doc: /* -*- texinfo -*- |
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1500 @deftypefn {} {} O_EXCL () |
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1501 Return the numerical value of the @code{O_EXCL}. |
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1502 |
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1503 @code{O_EXCL} is the file status flag that may be returned by |
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1504 @code{fcntl} to indicate that file locking is used. |
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1505 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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1506 @end deftypefn */) |
5749 | 1507 { |
21911 | 1508 static int val = octave_o_excl_wrapper (); |
1509 | |
1510 if (val < 0) | |
1511 err_disabled_feature ("O_EXCL", "O_EXCL"); | |
1512 | |
1513 return const_value (args, val); | |
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1514 } |
2075 | 1515 |
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1516 DEFUNX ("O_NONBLOCK", FO_NONBLOCK, args, , |
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1517 doc: /* -*- texinfo -*- |
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1518 @deftypefn {} {} O_NONBLOCK () |
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1519 Return the numerical value of the @code{O_NONBLOCK}. |
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1520 |
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1521 @code{O_NONBLOCK} is the file status flag that may be returned by |
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1522 @code{fcntl} to indicate that non-blocking I/O is in use, or that may be |
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1523 passsed to @code{fcntl} to set non-blocking I/O. |
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1524 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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|
1525 @end deftypefn */) |
5749 | 1526 { |
21911 | 1527 static int val = octave_o_nonblock_wrapper (); |
1528 | |
1529 if (val < 0) | |
1530 err_disabled_feature ("O_NONBLOCK", "O_NONBLOCK"); | |
1531 | |
1532 return const_value (args, val); | |
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1533 } |
2075 | 1534 |
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1535 DEFUNX ("O_RDONLY", FO_RDONLY, args, , |
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1536 doc: /* -*- texinfo -*- |
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1537 @deftypefn {} {} O_RDONLY () |
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1538 Return the numerical value of the @code{O_RDONLY}. |
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1539 |
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1540 @code{O_RDONLY} is the file status flag that may be returned by |
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1541 @code{fcntl} to indicate that a file is open for reading only. |
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1542 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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1543 @end deftypefn */) |
5749 | 1544 { |
21911 | 1545 static int val = octave_o_rdonly_wrapper (); |
1546 | |
1547 if (val < 0) | |
1548 err_disabled_feature ("O_RDONLY", "O_RDONLY"); | |
1549 | |
1550 return const_value (args, val); | |
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1551 } |
2075 | 1552 |
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1553 DEFUNX ("O_RDWR", FO_RDWR, args, , |
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1554 doc: /* -*- texinfo -*- |
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1555 @deftypefn {} {} O_RDWR () |
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1556 Return the numerical value of the @code{O_RDWR}. |
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1557 |
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|
1558 @code{O_RDWR} is the file status flag that may be returned by |
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1559 @code{fcntl} to indicate that a file is open for both reading and |
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|
1560 writing. |
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1561 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_SYNC, O_TRUNC, O_WRONLY} |
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1562 @end deftypefn */) |
5749 | 1563 { |
21911 | 1564 static int val = octave_o_rdwr_wrapper (); |
1565 | |
1566 if (val < 0) | |
1567 err_disabled_feature ("O_RDWR", "O_RDWR"); | |
1568 | |
1569 return const_value (args, val); | |
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1570 } |
2075 | 1571 |
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1572 DEFUNX ("O_SYNC", FO_SYNC, args, , |
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1573 doc: /* -*- texinfo -*- |
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1574 @deftypefn {} {} O_SYNC () |
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1575 Return the numerical value of the @code{O_SYNC}. |
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1576 |
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1577 @code{O_SYNC} is the file status flag that may be returned by |
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1578 @code{fcntl} to indicate that a file is open for synchronous I/O |
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1579 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_TRUNC, O_WRONLY} |
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1580 @end deftypefn */) |
5749 | 1581 { |
21911 | 1582 static int val = octave_o_sync_wrapper (); |
1583 | |
1584 if (val < 0) | |
1585 err_disabled_feature ("O_SYNC", "O_SYNC"); | |
1586 | |
1587 return const_value (args, val); | |
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1588 } |
2669 | 1589 |
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1590 DEFUNX ("O_TRUNC", FO_TRUNC, args, , |
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1591 doc: /* -*- texinfo -*- |
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1592 @deftypefn {} {} O_TRUNC () |
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1593 Return the numerical value of the @code{O_TRUNC}. |
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1594 |
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1595 @code{O_TRUNC} is the file status flag that may be returned by |
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1596 @code{fcntl} to indicate that if file exists, it should be truncated |
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1597 when writing. |
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1598 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_WRONLY} |
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1599 @end deftypefn */) |
5749 | 1600 { |
21911 | 1601 static int val = octave_o_trunc_wrapper (); |
1602 | |
1603 if (val < 0) | |
1604 err_disabled_feature ("O_TRUNC", "O_TRUNC"); | |
1605 | |
1606 return const_value (args, val); | |
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1607 } |
2075 | 1608 |
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1609 DEFUNX ("O_WRONLY", FO_WRONLY, args, , |
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1610 doc: /* -*- texinfo -*- |
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1611 @deftypefn {} {} O_WRONLY () |
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1612 Return the numerical value of the @code{O_WRONLY}. |
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1613 |
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1614 @code{O_WRONLY} is the file status flag that may be returned by |
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1615 @code{fcntl} to indicate that a file is open for writing only |
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1616 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC} |
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1617 @end deftypefn */) |
5749 | 1618 { |
21911 | 1619 static int val = octave_o_wronly_wrapper (); |
1620 | |
1621 if (val < 0) | |
1622 err_disabled_feature ("O_WRONLY", "O_WRONLY"); | |
1623 | |
1624 return const_value (args, val); | |
5749 | 1625 } |
3446 | 1626 |
5749 | 1627 DEFUNX ("WNOHANG", FWNOHANG, args, , |
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1628 doc: /* -*- texinfo -*- |
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1629 @deftypefn {} {} WNOHANG () |
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1630 Return the numerical value of the @code{WNOHANG} macro. |
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1631 |
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1632 @code{WNOHANG} is the option argument that may be passed to |
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1633 @code{waitpid} to indicate that it should return its status immediately |
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1634 instead of waiting for a process to exit. |
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1635 @seealso{waitpid, WUNTRACED, WCONTINUE} |
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1636 @end deftypefn */) |
5749 | 1637 { |
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1638 return const_value (args, octave::sys::wnohang ()); |
5749 | 1639 } |
5453 | 1640 |
5749 | 1641 DEFUNX ("WUNTRACED", FWUNTRACED, args, , |
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1642 doc: /* -*- texinfo -*- |
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1643 @deftypefn {} {} WUNTRACED () |
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1644 Return the numerical value of the @code{WUNTRACED} macro. |
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1645 |
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1646 @code{WUNTRACED} is the option argument that may be passed to |
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1647 @code{waitpid} to indicate that it should also return if the child |
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1648 process has stopped but is not traced via the @code{ptrace} system call |
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1649 @seealso{waitpid, WNOHANG, WCONTINUE} |
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1650 @end deftypefn */) |
5749 | 1651 { |
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1652 return const_value (args, octave::sys::wuntraced ()); |
5749 | 1653 } |
5453 | 1654 |
5749 | 1655 DEFUNX ("WCONTINUE", FWCONTINUE, args, , |
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1656 doc: /* -*- texinfo -*- |
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1657 @deftypefn {} {} WCONTINUE () |
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1658 Return the numerical value of the @code{WCONTINUE} macro. |
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1659 |
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1660 @code{WCONTINUE} is the option argument that may be passed to |
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1661 @code{waitpid} to indicate that it should also return if a stopped child |
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1662 has been resumed by delivery of a @code{SIGCONT} signal. |
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1663 @seealso{waitpid, WNOHANG, WUNTRACED} |
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1664 @end deftypefn */) |
5749 | 1665 { |
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1666 return const_value (args, octave::sys::wcontinue ()); |
2075 | 1667 } |