Mercurial > octave
annotate libinterp/corefcn/syscalls.cc @ 26661:cf9e10ce3351
move variable values from symbol_record objects to stack_frame objects
Apologies for the massive commit. I see no way to untangle these
changes into a set of smaller incremental changes in a way that would
be more useful.
Previously, handling data for recursive function calls was managed by
a stack of values in the symbol_record class and an auxiliary integer
variable was used for managing the recursion depth (context_id). Now,
values for local variables are in the stack_frame class and recursion
is handled naturally by the call_stack as a new stack frame is added
to the call_stack object for any call to a function or a script.
Values for internal function call information (nargin, nargout, etc.)
are now stored specially in the stack_frame object. Values for global
variables are now stored in a map in the call_stack object. Values
for persistent variables are stored in the corresponding
octave_user_function object. Access to non-local variables inside
nested functions is managed through pointers to stack_frame objects
for the parent function scopes. The new implementation more closely
resembles the techniques described in standard compiler literature.
These changes should make it easier to create proper closures and
finally solve bug #39257 (handles to nested functions are not yet
supported). They may also make it easier to implement JIT compiler,
though that is probably still a long way off.
The new stack-frame.h file has some details about the new
implementation of stack frames that should help in understanding how
things work now.
Describing each change to each file and function will probably not
provide much greater understanding of the changes and would be quite
tedious to write so I am omitting them.
author | John W. Eaton <jwe@octave.org> |
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date | Mon, 28 Jan 2019 18:01:46 +0000 |
parents | 00f796120a6d |
children | 04e5cb5e2cb3 |
rev | line source |
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2075 | 1 /* |
2 | |
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3 Copyright (C) 1996-2019 John W. Eaton |
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4 Copyright (C) 2010 VZLU Prague |
2075 | 5 |
6 This file is part of Octave. | |
7 | |
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8 Octave is free software: you can redistribute it and/or modify it |
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9 under the terms of the GNU General Public License as published by |
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10 the Free Software Foundation, either version 3 of the License, or |
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11 (at your option) any later version. |
2075 | 12 |
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13 Octave is distributed in the hope that it will be useful, but |
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14 WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 GNU General Public License for more details. |
2075 | 17 |
18 You should have received a copy of the GNU General Public License | |
7016 | 19 along with Octave; see the file COPYING. If not, see |
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20 <https://www.gnu.org/licenses/>. |
2075 | 21 |
22 */ | |
23 | |
24 // Thomas Baier <baier@ci.tuwien.ac.at> added the original versions of | |
25 // the following functions: | |
26 // | |
27 // mkfifo unlink waitpid | |
28 | |
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29 #if defined (HAVE_CONFIG_H) |
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30 # include "config.h" |
2075 | 31 #endif |
32 | |
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33 #include <ctime> |
2075 | 34 #include <cstdio> |
2669 | 35 #include <cstring> |
2075 | 36 |
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37 #include "cmd-hist.h" |
21911 | 38 #include "fcntl-wrappers.h" |
2926 | 39 #include "file-ops.h" |
40 #include "file-stat.h" | |
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41 #include "lo-utils.h" |
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42 #include "oct-env.h" |
2937 | 43 #include "oct-syscalls.h" |
5547 | 44 #include "oct-uname.h" |
2075 | 45 #include "defun.h" |
46 #include "error.h" | |
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47 #include "errwarn.h" |
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48 #include "interpreter.h" |
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49 #include "oct-hist.h" |
2075 | 50 #include "oct-map.h" |
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51 #include "ovl.h" |
2075 | 52 #include "oct-stdstrm.h" |
53 #include "oct-stream.h" | |
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54 #include "octave-link.h" |
2075 | 55 #include "sysdep.h" |
56 #include "utils.h" | |
2366 | 57 #include "variables.h" |
6321 | 58 #include "input.h" |
2075 | 59 |
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60 static octave_scalar_map |
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61 mk_stat_map (const octave::sys::base_file_stat& fs) |
2075 | 62 { |
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63 static bool have_rdev = |
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64 octave::sys::base_file_stat::have_struct_stat_st_rdev (); |
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65 static bool have_blksize = |
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66 octave::sys::base_file_stat::have_struct_stat_st_blksize (); |
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67 static bool have_blocks = |
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68 octave::sys::base_file_stat::have_struct_stat_st_blocks (); |
21935 | 69 |
70 static double nan = octave::numeric_limits<double>::NaN (); | |
71 | |
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72 octave_scalar_map m; |
2075 | 73 |
4675 | 74 m.assign ("dev", static_cast<double> (fs.dev ())); |
75 m.assign ("ino", fs.ino ()); | |
5476 | 76 m.assign ("mode", fs.mode ()); |
4675 | 77 m.assign ("modestr", fs.mode_as_string ()); |
78 m.assign ("nlink", fs.nlink ()); | |
79 m.assign ("uid", fs.uid ()); | |
80 m.assign ("gid", fs.gid ()); | |
21935 | 81 m.assign ("rdev", have_rdev ? static_cast<double> (fs.rdev ()) : nan); |
4675 | 82 m.assign ("size", fs.size ()); |
83 m.assign ("atime", fs.atime ()); | |
84 m.assign ("mtime", fs.mtime ()); | |
85 m.assign ("ctime", fs.ctime ()); | |
21935 | 86 |
87 if (have_blksize) | |
88 m.assign ("blksize", fs.blksize ()); | |
89 else | |
90 m.assign ("blksize", nan); | |
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91 |
21935 | 92 if (have_blocks) |
93 m.assign ("blocks", fs.blocks ()); | |
94 else | |
95 m.assign ("blocks", nan); | |
2075 | 96 |
97 return m; | |
98 } | |
99 | |
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100 static octave_value_list |
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101 mk_stat_result (const octave::sys::base_file_stat& fs) |
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102 { |
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103 if (fs) |
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104 return ovl (octave_value (mk_stat_map (fs)), 0, ""); |
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105 else |
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106 return ovl (Matrix (), -1, fs.error ()); |
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107 } |
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108 |
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109 DEFMETHODX ("dup2", Fdup2, interp, args, , |
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110 doc: /* -*- texinfo -*- |
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111 @deftypefn {} {[@var{fid}, @var{msg}] =} dup2 (@var{old}, @var{new}) |
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112 Duplicate a file descriptor. |
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113 |
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114 If successful, @var{fid} is greater than zero and contains the new file ID@. |
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115 Otherwise, @var{fid} is negative and @var{msg} contains a system-dependent |
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116 error message. |
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117 @seealso{fopen, fclose, fcntl} |
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118 @end deftypefn */) |
2075 | 119 { |
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120 if (args.length () != 2) |
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121 print_usage (); |
2075 | 122 |
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123 octave::stream_list& streams = interp.get_stream_list (); |
2075 | 124 |
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125 octave::stream old_stream = streams.lookup (args(0), "dup2"); |
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126 |
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127 octave::stream new_stream = streams.lookup (args(1), "dup2"); |
2075 | 128 |
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129 int i_old = old_stream.file_number (); |
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130 int i_new = new_stream.file_number (); |
2669 | 131 |
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132 if (i_old >= 0 && i_new >= 0) |
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133 { |
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134 std::string msg; |
3341 | 135 |
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136 int status = octave::sys::dup2 (i_old, i_new, msg); |
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137 |
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138 return ovl (status, msg); |
2075 | 139 } |
140 else | |
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141 return ovl (-1, ""); |
2075 | 142 } |
143 | |
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144 DEFMETHODX ("exec", Fexec, interp, args, , |
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145 doc: /* -*- texinfo -*- |
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146 @deftypefn {} {[@var{err}, @var{msg}] =} exec (@var{file}, @var{args}) |
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147 Replace current process with a new process. |
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148 |
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149 Calling @code{exec} without first calling @code{fork} will terminate your |
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150 current Octave process and replace it with the program named by @var{file}. |
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151 For example, |
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152 |
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153 @example |
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154 exec ("ls", "-l") |
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155 @end example |
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156 |
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157 @noindent |
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158 will run @code{ls} and return you to your shell prompt. |
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159 |
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160 If successful, @code{exec} does not return. If @code{exec} does return, |
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161 @var{err} will be nonzero, and @var{msg} will contain a system-dependent |
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162 error message. |
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163 @end deftypefn */) |
2075 | 164 { |
165 int nargin = args.length (); | |
166 | |
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167 if (nargin < 1 || nargin > 2) |
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168 print_usage (); |
2075 | 169 |
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170 std::string exec_file = args(0).xstring_value ("exec: FILE must be a string"); |
2075 | 171 |
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172 string_vector exec_args; |
2075 | 173 |
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174 if (nargin == 2) |
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175 { |
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176 string_vector tmp = args(1).xstring_vector_value ("exec: all arguments must be strings"); |
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178 int len = tmp.numel (); |
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180 exec_args.resize (len + 1); |
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182 exec_args[0] = exec_file; |
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184 for (int i = 0; i < len; i++) |
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185 exec_args[i+1] = tmp[i]; |
2075 | 186 } |
187 else | |
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188 { |
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189 exec_args.resize (1); |
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190 |
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191 exec_args[0] = exec_file; |
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192 } |
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193 |
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194 octave::history_system& history_sys = interp.get_history_system (); |
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195 |
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196 history_sys.write_timestamp (); |
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198 if (! octave::command_history::ignoring_entries ()) |
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199 octave::command_history::clean_up_and_save (); |
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200 |
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201 std::string msg; |
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202 |
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203 int status = octave::sys::execvp (exec_file, exec_args, msg); |
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204 |
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205 return ovl (status, msg); |
2075 | 206 } |
207 | |
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208 DEFMETHODX ("popen2", Fpopen2, interp, args, , |
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209 doc: /* -*- texinfo -*- |
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210 @deftypefn {} {[@var{in}, @var{out}, @var{pid}] =} popen2 (@var{command}, @var{args}) |
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211 Start a subprocess with two-way communication. |
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212 |
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213 The name of the process is given by @var{command}, and @var{args} is an |
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214 array or cell array of strings containing options for the command. |
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215 |
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216 The file identifiers for the input and output streams of the subprocess are |
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217 returned in @var{in} and @var{out}. If execution of the command is |
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218 successful, @var{pid} contains the process ID of the subprocess. Otherwise, |
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219 @var{pid} is @minus{}1. |
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220 |
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221 For example: |
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222 |
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223 @example |
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224 [in, out, pid] = popen2 ("sort", "-r"); |
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225 fputs (in, "these\nare\nsome\nstrings\n"); |
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226 fclose (in); |
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227 EAGAIN = errno ("EAGAIN"); |
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228 done = false; |
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229 do |
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230 s = fgets (out); |
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231 if (ischar (s)) |
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232 fputs (stdout, s); |
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233 elseif (errno () == EAGAIN) |
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234 pause (0.1); |
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235 fclear (out); |
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236 else |
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237 done = true; |
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238 endif |
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239 until (done) |
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240 fclose (out); |
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241 waitpid (pid); |
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242 |
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243 @print{} these |
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244 @print{} strings |
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245 @print{} some |
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246 @print{} are |
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247 @end example |
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248 |
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249 Note that @code{popen2}, unlike @code{popen}, will not @nospell{"reap"} |
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250 the child process. If you don't use @code{waitpid} to check the child's |
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251 exit status, it will linger until Octave exits. |
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252 @seealso{popen, waitpid} |
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253 @end deftypefn */) |
6321 | 254 { |
255 int nargin = args.length (); | |
256 | |
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257 if (nargin < 1 || nargin > 3) |
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258 print_usage (); |
6321 | 259 |
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260 std::string exec_file = args(0).xstring_value ("popen2: COMMAND argument must be a string"); |
6321 | 261 |
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262 string_vector arg_list; |
6321 | 263 |
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264 if (nargin >= 2) |
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265 { |
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266 string_vector tmp = args(1).xstring_vector_value ("popen2: all arguments must be strings"); |
6321 | 267 |
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268 int len = tmp.numel (); |
6321 | 269 |
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270 arg_list.resize (len + 1); |
6321 | 271 |
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272 arg_list[0] = exec_file; |
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273 |
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274 for (int i = 0; i < len; i++) |
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275 arg_list[i+1] = tmp[i]; |
6321 | 276 } |
277 else | |
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278 { |
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279 arg_list.resize (1); |
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280 |
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281 arg_list[0] = exec_file; |
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282 } |
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283 |
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284 bool sync_mode = (nargin == 3 ? args(2).bool_value () : false); |
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285 |
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286 int filedesc[2]; |
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287 std::string msg; |
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288 pid_t pid; |
6321 | 289 |
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290 pid = octave::sys::popen2 (exec_file, arg_list, sync_mode, filedesc, msg); |
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291 |
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292 if (pid < 0) |
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293 error ("%s", msg.c_str ()); |
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295 FILE *ifile = fdopen (filedesc[1], "r"); |
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296 FILE *ofile = fdopen (filedesc[0], "w"); |
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297 |
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298 octave::stream is |
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299 = octave_stdiostream::create (exec_file + "-in", ifile, std::ios::in); |
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300 |
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301 octave::stream os |
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302 = octave_stdiostream::create (exec_file + "-out", ofile, std::ios::out); |
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303 |
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304 octave::stream_list& streams = interp.get_stream_list (); |
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305 |
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306 return ovl (streams.insert (os), streams.insert (is), pid); |
6321 | 307 } |
308 | |
309 /* | |
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310 |
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311 %!test # UNIX-style test |
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312 %! if (isunix () || ismac ()) |
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313 %! [in, out, pid] = popen2 ("sort", "-r"); |
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314 %! EAGAIN = errno ("EAGAIN"); |
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315 %! fputs (in, "these\nare\nsome\nstrings\n"); |
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316 %! fclose (in); |
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317 %! done = false; |
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318 %! str = {}; |
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319 %! idx = 0; |
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320 %! errs = 0; |
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321 %! do |
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322 %! if (ismac ()) # FIXME: Is this necessary? |
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323 %! errno (0); |
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324 %! endif |
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325 %! s = fgets (out); |
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326 %! if (ischar (s)) |
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327 %! idx++; |
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328 %! str{idx} = s; |
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329 %! elseif (errno () == EAGAIN) |
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330 %! fclear (out); |
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331 %! pause (0.1); |
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332 %! if (++errs == 100) |
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333 %! done = true; |
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334 %! endif |
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335 %! else |
6321 | 336 %! done = true; |
337 %! endif | |
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338 %! until (done) |
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339 %! fclose (out); |
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340 %! waitpid (pid); |
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341 %! assert (str, {"these\n","strings\n","some\n","are\n"}); |
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342 %! endif |
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343 |
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344 %!test # Windows-style test |
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345 %! if (ispc () && ! isunix ()) |
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346 %! [in, out, pid] = popen2 ('C:\Windows\system32\sort.exe', "/R"); |
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347 %! EAGAIN = errno ("EINVAL"); |
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348 %! fputs (in, "these\r\nare\r\nsome\r\nstrings\r\n"); |
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349 %! fclose (in); |
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350 %! done = false; |
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351 %! str = {}; |
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352 %! idx = 0; |
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353 %! errs = 0; |
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354 %! do |
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355 %! errno (0); |
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356 %! s = fgets (out); |
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357 %! if (ischar (s)) |
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358 %! idx++; |
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359 %! str{idx} = s; |
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360 %! elseif (errno () == EAGAIN) |
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361 %! fclear (out); |
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362 %! pause (0.1); |
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363 %! if (++errs == 100) |
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364 %! done = true; |
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365 %! endif |
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366 %! else |
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367 %! done = true; |
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368 %! endif |
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369 %! until (done) |
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370 %! fclose (out); |
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371 %! waitpid (pid); |
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372 %! assert (str, {"these\r\n","strings\r\n","some\r\n","are\r\n"}); |
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373 %! endif |
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374 |
6321 | 375 */ |
376 | |
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377 DEFMETHODX ("fcntl", Ffcntl, interp, args, , |
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378 doc: /* -*- texinfo -*- |
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379 @deftypefn {} {[@var{err}, @var{msg}] =} fcntl (@var{fid}, @var{request}, @var{arg}) |
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380 Change the properties of the open file @var{fid}. |
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381 |
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382 The following values may be passed as @var{request}: |
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383 |
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384 @vtable @code |
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385 @item F_DUPFD |
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386 Return a duplicate file descriptor. |
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387 |
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388 @item F_GETFD |
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389 Return the file descriptor flags for @var{fid}. |
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390 |
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391 @item F_SETFD |
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392 Set the file descriptor flags for @var{fid}. |
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393 |
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394 @item F_GETFL |
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395 Return the file status flags for @var{fid}. The following codes may be |
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396 returned (some of the flags may be undefined on some systems). |
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397 |
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398 @vtable @code |
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399 @item O_RDONLY |
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400 Open for reading only. |
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401 |
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402 @item O_WRONLY |
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403 Open for writing only. |
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404 |
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405 @item O_RDWR |
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406 Open for reading and writing. |
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407 |
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408 @item O_APPEND |
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409 Append on each write. |
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410 |
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411 @item O_CREAT |
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412 Create the file if it does not exist. |
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413 |
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414 @item O_NONBLOCK |
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415 Non-blocking mode. |
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416 |
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417 @item O_SYNC |
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418 Wait for writes to complete. |
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419 |
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420 @item O_ASYNC |
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421 Asynchronous I/O. |
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422 @end vtable |
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423 |
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424 @item F_SETFL |
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425 Set the file status flags for @var{fid} to the value specified by @var{arg}. |
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426 The only flags that can be changed are @w{@code{O_APPEND}} and |
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427 @w{@code{O_NONBLOCK}}. |
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428 @end vtable |
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429 |
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430 If successful, @var{err} is 0 and @var{msg} is an empty string. Otherwise, |
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431 @var{err} is nonzero and @var{msg} contains a system-dependent error |
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432 message. |
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433 @seealso{fopen, dup2} |
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434 @end deftypefn */) |
2075 | 435 { |
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436 if (args.length () != 3) |
5823 | 437 print_usage (); |
2075 | 438 |
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439 octave::stream_list& streams = interp.get_stream_list (); |
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440 |
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441 octave::stream strm = streams.lookup (args(0), "fcntl"); |
2075 | 442 |
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443 int fid = strm.file_number (); |
3715 | 444 |
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445 // FIXME: Do we want to use xint_value and throw a warning message |
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446 // if input validation fails? |
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447 int req = args(1).int_value (true); |
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448 int arg = args(2).int_value (true); |
3715 | 449 |
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450 // FIXME: Need better checking here? |
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451 if (fid < 0) |
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452 error ("fcntl: invalid file id"); |
2937 | 453 |
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454 std::string msg; |
2669 | 455 |
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456 int status = octave::sys::fcntl (fid, req, arg, msg); |
2075 | 457 |
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458 return ovl (status, msg); |
2075 | 459 } |
460 | |
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461 DEFMETHODX ("fork", Ffork, interp, args, , |
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462 doc: /* -*- texinfo -*- |
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463 @deftypefn {} {[@var{pid}, @var{msg}] =} fork () |
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464 Create a copy of the current process. |
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465 |
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466 Fork can return one of the following values: |
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467 |
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468 @table @asis |
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469 @item > 0 |
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470 You are in the parent process. The value returned from @code{fork} is the |
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471 process id of the child process. You should probably arrange to wait for |
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472 any child processes to exit. |
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473 |
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474 @item 0 |
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475 You are in the child process. You can call @code{exec} to start another |
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476 process. If that fails, you should probably call @code{exit}. |
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477 |
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478 @item < 0 |
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479 The call to @code{fork} failed for some reason. You must take evasive |
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480 action. A system dependent error message will be waiting in @var{msg}. |
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481 @end table |
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482 @end deftypefn */) |
2075 | 483 { |
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484 if (args.length () != 0) |
5823 | 485 print_usage (); |
2075 | 486 |
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487 if (interp.at_top_level ()) |
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488 error ("fork: cannot be called from command line"); |
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489 |
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490 std::string msg; |
2669 | 491 |
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492 pid_t pid = octave::sys::fork (msg); |
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493 |
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494 return ovl (pid, msg); |
2075 | 495 } |
496 | |
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497 DEFUNX ("getpgrp", Fgetpgrp, args, , |
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498 doc: /* -*- texinfo -*- |
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499 @deftypefn {} {pgid =} getpgrp () |
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500 Return the process group id of the current process. |
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501 @end deftypefn */) |
2075 | 502 { |
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503 if (args.length () != 0) |
5823 | 504 print_usage (); |
2075 | 505 |
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506 std::string msg; |
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507 |
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508 pid_t pid = octave::sys::getpgrp (msg); |
2075 | 509 |
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510 return ovl (pid, msg); |
2075 | 511 } |
512 | |
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513 DEFUNX ("getpid", Fgetpid, args, , |
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514 doc: /* -*- texinfo -*- |
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515 @deftypefn {} {pid =} getpid () |
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516 Return the process id of the current process. |
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517 @seealso{getppid} |
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518 @end deftypefn */) |
2075 | 519 { |
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520 if (args.length () != 0) |
5823 | 521 print_usage (); |
2075 | 522 |
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523 return ovl (octave::sys::getpid ()); |
2075 | 524 } |
525 | |
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526 DEFUNX ("getppid", Fgetppid, args, , |
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527 doc: /* -*- texinfo -*- |
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528 @deftypefn {} {pid =} getppid () |
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529 Return the process id of the parent process. |
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530 @seealso{getpid} |
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531 @end deftypefn */) |
2075 | 532 { |
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533 if (args.length () != 0) |
5823 | 534 print_usage (); |
2475 | 535 |
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536 return ovl (octave::sys::getppid ()); |
2475 | 537 } |
538 | |
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539 DEFUNX ("getegid", Fgetegid, args, , |
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540 doc: /* -*- texinfo -*- |
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541 @deftypefn {} {egid =} getegid () |
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542 Return the effective group id of the current process. |
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543 @seealso{getgid} |
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544 @end deftypefn */) |
2475 | 545 { |
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546 if (args.length () != 0) |
5823 | 547 print_usage (); |
2475 | 548 |
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549 return ovl (octave::sys::getegid ()); |
2475 | 550 } |
551 | |
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552 DEFUNX ("getgid", Fgetgid, args, , |
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553 doc: /* -*- texinfo -*- |
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554 @deftypefn {} {gid =} getgid () |
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555 Return the real group id of the current process. |
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556 @seealso{getegid} |
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557 @end deftypefn */) |
2475 | 558 { |
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559 if (args.length () != 0) |
5823 | 560 print_usage (); |
2075 | 561 |
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562 return ovl (octave::sys::getgid ()); |
2075 | 563 } |
564 | |
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565 DEFUNX ("geteuid", Fgeteuid, args, , |
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566 doc: /* -*- texinfo -*- |
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567 @deftypefn {} {euid =} geteuid () |
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568 Return the effective user id of the current process. |
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569 @seealso{getuid} |
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570 @end deftypefn */) |
2472 | 571 { |
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572 if (args.length () != 0) |
5823 | 573 print_usage (); |
2473 | 574 |
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575 return ovl (octave::sys::geteuid ()); |
2472 | 576 } |
577 | |
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578 DEFUNX ("getuid", Fgetuid, args, , |
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579 doc: /* -*- texinfo -*- |
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580 @deftypefn {} {uid =} getuid () |
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581 Return the real user id of the current process. |
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582 @seealso{geteuid} |
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583 @end deftypefn */) |
2472 | 584 { |
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585 if (args.length () != 0) |
5823 | 586 print_usage (); |
2473 | 587 |
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588 return ovl (octave::sys::getuid ()); |
2472 | 589 } |
590 | |
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591 DEFUNX ("kill", Fkill, args, , |
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592 doc: /* -*- texinfo -*- |
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593 @deftypefn {} {[@var{err}, @var{msg}] =} kill (@var{pid}, @var{sig}) |
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594 Send signal @var{sig} to process @var{pid}. |
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595 |
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596 If @var{pid} is positive, then signal @var{sig} is sent to @var{pid}. |
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597 |
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598 If @var{pid} is 0, then signal @var{sig} is sent to every process |
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599 in the process group of the current process. |
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600 |
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601 If @var{pid} is -1, then signal @var{sig} is sent to every process |
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602 except process 1. |
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603 |
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604 If @var{pid} is less than -1, then signal @var{sig} is sent to every |
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605 process in the process group @var{-pid}. |
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606 |
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607 If @var{sig} is 0, then no signal is sent, but error checking is still |
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608 performed. |
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609 |
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610 Return 0 if successful, otherwise return -1. |
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611 @end deftypefn */) |
4294 | 612 { |
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613 if (args.length () != 2) |
5823 | 614 print_usage (); |
4294 | 615 |
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616 pid_t pid = args(0).int_value (true); |
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617 |
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618 int sig = args(1).int_value (true); |
4294 | 619 |
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620 std::string msg; |
4294 | 621 |
21727
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622 int status = octave::sys::kill (pid, sig, msg); |
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623 |
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624 return ovl (status, msg); |
4294 | 625 } |
626 | |
10299
c992efc0c2fa
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627 DEFUNX ("lstat", Flstat, args, , |
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628 doc: /* -*- texinfo -*- |
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629 @deftypefn {} {@var{info} =} lstat (@var{symlink}) |
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630 @deftypefnx {} {[@var{info}, @var{err}, @var{msg}] =} lstat (@var{symlink}) |
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631 Return a structure @var{info} containing information about the symbolic link |
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632 @var{symlink}. |
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633 |
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634 The function outputs are described in the documentation for @code{stat}. |
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635 @seealso{stat, symlink} |
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636 @end deftypefn */) |
2075 | 637 { |
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638 if (args.length () != 1) |
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639 print_usage (); |
2075 | 640 |
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641 std::string fname = args(0).xstring_value ("lstat: NAME must be a string"); |
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642 |
21736
0504351a45e6
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643 octave::sys::file_stat fs (fname, false); |
2075 | 644 |
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645 return mk_stat_result (fs); |
2075 | 646 } |
647 | |
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648 // FIXME: This routine also exists verbatim in file-io.cc. |
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649 // Maybe change to be a general utility routine. |
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650 static int |
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651 convert (int x, int ibase, int obase) |
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652 { |
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653 int retval = 0; |
2075 | 654 |
20200
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655 int tmp = x % obase; |
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656 |
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657 if (tmp > ibase - 1) |
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658 error ("mkfifo: invalid digit"); |
2075 | 659 |
21055
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660 retval = tmp; |
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661 int mult = ibase; |
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662 while ((x = (x - tmp) / obase)) |
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663 { |
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664 tmp = x % obase; |
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665 |
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666 if (tmp > ibase - 1) |
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|
667 error ("mkfifo: invalid digit"); |
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668 |
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669 retval += mult * tmp; |
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670 mult *= ibase; |
2075 | 671 } |
672 | |
673 return retval; | |
674 } | |
675 | |
10197
4d433bd2d4dc
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676 DEFUNX ("mkfifo", Fmkfifo, args, , |
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677 doc: /* -*- texinfo -*- |
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678 @deftypefn {} {@var{err} =} mkfifo (@var{name}, @var{mode}) |
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679 @deftypefnx {} {[@var{err}, @var{msg}] =} mkfifo (@var{name}, @var{mode}) |
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680 Create a FIFO special file named @var{name} with file mode @var{mode}. |
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681 |
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682 @var{mode} is interpreted as an octal number and is subject to umask |
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683 processing. The final calculated mode is @code{@var{mode} - @var{umask}}. |
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684 |
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685 If successful, @var{err} is 0 and @var{msg} is an empty string. |
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686 Otherwise, @var{err} is nonzero and @var{msg} contains a system-dependent |
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687 error message. |
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688 @seealso{pipe, umask} |
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689 @end deftypefn */) |
2075 | 690 { |
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|
691 if (args.length () != 2) |
5823 | 692 print_usage (); |
2075 | 693 |
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|
694 std::string name = args(0).xstring_value ("mkfifo: FILE must be a string"); |
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|
695 |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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696 int octal_mode = args(1).xint_value ("mkfifo: MODE must be an integer"); |
4254 | 697 |
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698 if (octal_mode < 0) |
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|
699 error ("mkfifo: MODE must be a positive integer value"); |
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|
700 |
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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|
701 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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|
702 |
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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|
703 std::string msg; |
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diff
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|
704 |
21733
cb0fdd941d84
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21732
diff
changeset
|
705 int status = octave::sys::mkfifo (name, mode, msg); |
20856
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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parents:
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diff
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|
706 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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parents:
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diff
changeset
|
707 return ovl (status, msg); |
2075 | 708 } |
709 | |
20200
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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|
710 /* |
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|
711 |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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|
712 ## Test input validation |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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|
713 %!error mkfifo () |
d9f35ceff9e1
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|
714 %!error mkfifo ("abc") |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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|
715 %!error mkfifo ("abc", 777, 123) |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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|
716 %!error <FILE must be a string> mkfifo (123, 456) |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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|
717 ## 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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|
718 #%!error <MODE must be an integer> mkfifo ("abc", {456}) |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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|
719 #%!error <MODE must be a positive integer value> mkfifo ("abc", -1) |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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diff
changeset
|
720 |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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parents:
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diff
changeset
|
721 */ |
d9f35ceff9e1
Change mkfifo to use an octal argument for MODE (bug #45054).
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|
722 |
23738
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|
723 DEFMETHODX ("pipe", Fpipe, interp, args, , |
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724 doc: /* -*- texinfo -*- |
21966
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|
725 @deftypefn {} {[@var{read_fd}, @var{write_fd}, @var{err}, @var{msg}] =} pipe () |
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726 Create a pipe and return the reading and writing ends of the pipe into |
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|
727 @var{read_fd} and @var{write_fd} respectively. |
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728 |
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729 If successful, @var{err} is 0 and @var{msg} is an empty string. |
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730 Otherwise, @var{err} is nonzero and @var{msg} contains a system-dependent |
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731 error message. |
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732 @seealso{mkfifo} |
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733 @end deftypefn */) |
2075 | 734 { |
20887
05125a9eb9c6
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Rik <rik@octave.org>
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|
735 if (args.length () != 0) |
5823 | 736 print_usage (); |
2075 | 737 |
20856
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738 int fid[2]; |
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|
739 std::string msg; |
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|
740 |
21727
e0da98857c19
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|
741 int status = octave::sys::pipe (fid, msg); |
2669 | 742 |
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|
743 if (status < 0) |
20887
05125a9eb9c6
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744 return ovl (-1, -1, -1, msg); |
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|
745 else |
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746 { |
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747 FILE *ifile = fdopen (fid[0], "r"); |
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748 FILE *ofile = fdopen (fid[1], "w"); |
4327 | 749 |
23059
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|
750 octave::stream is |
22407
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diff
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|
751 = octave_stdiostream::create ("pipe-in", ifile, std::ios::in); |
2075 | 752 |
23059
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diff
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|
753 octave::stream os |
22407
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|
754 = octave_stdiostream::create ("pipe-out", ofile, std::ios::out); |
20856
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|
755 |
23738
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|
756 octave::stream_list& streams = interp.get_stream_list (); |
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|
757 |
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758 return ovl (streams.insert (is), streams.insert (os), status, msg); |
2075 | 759 } |
760 } | |
761 | |
23738
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762 DEFMETHODX ("stat", Fstat, interp, args, , |
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763 doc: /* -*- texinfo -*- |
21966
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764 @deftypefn {} {[@var{info}, @var{err}, @var{msg}] =} stat (@var{file}) |
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765 @deftypefnx {} {[@var{info}, @var{err}, @var{msg}] =} stat (@var{fid}) |
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766 @deftypefnx {} {[@var{info}, @var{err}, @var{msg}] =} lstat (@var{file}) |
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767 @deftypefnx {} {[@var{info}, @var{err}, @var{msg}] =} lstat (@var{fid}) |
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768 Return a structure @var{info} containing the following information about |
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769 @var{file} or file identifier @var{fid}. |
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770 |
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771 @table @code |
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772 @item dev |
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773 ID of device containing a directory entry for this file. |
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774 |
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775 @item ino |
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776 File number of the file. |
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777 |
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778 @item mode |
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779 File mode, as an integer. Use the functions @w{@code{S_ISREG}}, |
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780 @w{@code{S_ISDIR}}, @w{@code{S_ISCHR}}, @w{@code{S_ISBLK}}, |
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781 @w{@code{S_ISFIFO}}, @w{@code{S_ISLNK}}, or @w{@code{S_ISSOCK}} to extract |
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782 information from this value. |
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783 |
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784 @item modestr |
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785 File mode, as a string of ten letters or dashes as would be returned by |
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786 @kbd{ls -l}. |
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787 |
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788 @item nlink |
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789 Number of links. |
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790 |
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791 @item uid |
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792 User ID of file's owner. |
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793 |
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794 @item gid |
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795 Group ID of file's group. |
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796 |
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797 @item rdev |
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798 ID of device for block or character special files. |
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799 |
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800 @item size |
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801 Size in bytes. |
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802 |
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803 @item atime |
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804 Time of last access in the same form as time values returned from |
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805 @code{time}. @xref{Timing Utilities}. |
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806 |
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807 @item mtime |
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808 Time of last modification in the same form as time values returned from |
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809 @code{time}. @xref{Timing Utilities}. |
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810 |
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811 @item ctime |
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812 Time of last file status change in the same form as time values |
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813 returned from @code{time}. @xref{Timing Utilities}. |
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814 |
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815 @item blksize |
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816 Size of blocks in the file. |
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817 |
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818 @item blocks |
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819 Number of blocks allocated for file. |
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820 @end table |
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821 |
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822 If the call is successful @var{err} is 0 and @var{msg} is an empty string. |
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823 If the file does not exist, or some other error occurs, @var{info} is an |
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824 empty matrix, @var{err} is @minus{}1, and @var{msg} contains the |
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825 corresponding system error message. |
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826 |
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827 If @var{file} is a symbolic link, @code{stat} will return information about |
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828 the actual file that is referenced by the link. Use @code{lstat} if you |
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829 want information about the symbolic link itself. |
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830 |
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831 For example: |
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832 |
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833 @example |
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834 [info, err, msg] = stat ("/vmlinuz") |
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835 @result{} info = |
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836 @{ |
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837 atime = 855399756 |
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838 rdev = 0 |
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839 ctime = 847219094 |
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840 uid = 0 |
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841 size = 389218 |
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842 blksize = 4096 |
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diff
changeset
|
843 mtime = 847219094 |
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 gid = 6 |
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
|
845 nlink = 1 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
846 blocks = 768 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
847 mode = -rw-r--r-- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
848 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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diff
changeset
|
849 ino = 9316 |
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
|
850 dev = 2049 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
21949
diff
changeset
|
851 @} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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changeset
|
852 @result{} err = 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
|
853 @result{} msg = |
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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
|
854 @end example |
25782
0862570da0ae
isfile.m: New function for Matlab compatibility (bug #54508).
Rik <rik@octave.org>
parents:
25781
diff
changeset
|
855 @seealso{lstat, ls, dir, isfile, isfolder} |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
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diff
changeset
|
856 @end deftypefn */) |
2075 | 857 { |
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
|
858 if (args.length () != 1) |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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parents:
20853
diff
changeset
|
859 print_usage (); |
2075 | 860 |
2262 | 861 octave_value_list retval; |
2075 | 862 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
863 if (args(0).is_scalar_type ()) |
2075 | 864 { |
23738
8acd390d16c9
don't use singleton for stream_list object
John W. Eaton <jwe@octave.org>
parents:
23693
diff
changeset
|
865 octave::stream_list& streams = interp.get_stream_list (); |
8acd390d16c9
don't use singleton for stream_list object
John W. Eaton <jwe@octave.org>
parents:
23693
diff
changeset
|
866 |
8acd390d16c9
don't use singleton for stream_list object
John W. Eaton <jwe@octave.org>
parents:
23693
diff
changeset
|
867 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
|
868 |
21737
ab6c639f0678
finish previous changeset (0504351a45e6).
John W. Eaton <jwe@octave.org>
parents:
21736
diff
changeset
|
869 octave::sys::file_fstat fs (fid); |
10336
1603dfe72933
obsolete fstat, handle the functionality by stat
Jaroslav Hajek <highegg@gmail.com>
parents:
10315
diff
changeset
|
870 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
871 retval = mk_stat_result (fs); |
2075 | 872 } |
873 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
|
874 { |
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
875 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>
parents:
10315
diff
changeset
|
876 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
877 octave::sys::file_stat fs (fname); |
10336
1603dfe72933
obsolete fstat, handle the functionality by stat
Jaroslav Hajek <highegg@gmail.com>
parents:
10315
diff
changeset
|
878 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
879 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
|
880 } |
2075 | 881 |
882 return retval; | |
883 } | |
884 | |
5476 | 885 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
|
886 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
21949
diff
changeset
|
887 @deftypefn {} {} S_ISREG (@var{mode}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
21949
diff
changeset
|
888 Return true if @var{mode} corresponds to a regular file. |
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
|
889 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
890 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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parents:
21949
diff
changeset
|
891 @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
|
892 @seealso{stat, lstat} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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parents:
21949
diff
changeset
|
893 @end deftypefn */) |
5476 | 894 { |
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
|
895 if (args.length () != 1) |
5823 | 896 print_usage (); |
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 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
|
899 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
900 return ovl (octave::sys::file_stat::is_reg (static_cast<mode_t> (mode))); |
5476 | 901 } |
902 | |
903 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
|
904 doc: /* -*- texinfo -*- |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
905 @deftypefn {} {} S_ISDIR (@var{mode}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
906 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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parents:
21949
diff
changeset
|
907 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
908 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
|
909 @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
|
910 @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
|
911 @end deftypefn */) |
5476 | 912 { |
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
|
913 if (args.length () != 1) |
5823 | 914 print_usage (); |
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 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
|
917 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
918 return ovl (octave::sys::file_stat::is_dir (static_cast<mode_t> (mode))); |
5476 | 919 } |
920 | |
921 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
|
922 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
|
923 @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
|
924 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
|
925 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
926 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
|
927 @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
|
928 @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
|
929 @end deftypefn */) |
5476 | 930 { |
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
|
931 if (args.length () != 1) |
5823 | 932 print_usage (); |
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 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
|
935 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
936 return ovl (octave::sys::file_stat::is_chr (static_cast<mode_t> (mode))); |
5476 | 937 } |
938 | |
939 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
|
940 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
|
941 @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
|
942 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
|
943 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
944 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
|
945 @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
|
946 @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
|
947 @end deftypefn */) |
5476 | 948 { |
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
|
949 if (args.length () != 1) |
5823 | 950 print_usage (); |
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 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
|
953 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
954 return ovl (octave::sys::file_stat::is_blk (static_cast<mode_t> (mode))); |
5476 | 955 } |
956 | |
957 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
|
958 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
|
959 @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
|
960 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:
21949
diff
changeset
|
961 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
962 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
|
963 @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
|
964 @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
|
965 @end deftypefn */) |
5476 | 966 { |
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
|
967 if (args.length () != 1) |
5823 | 968 print_usage (); |
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 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
|
971 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
21733
diff
changeset
|
972 return ovl (octave::sys::file_stat::is_fifo (static_cast<mode_t> (mode))); |
5476 | 973 } |
974 | |
975 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
|
976 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
|
977 @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
|
978 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:
21949
diff
changeset
|
979 |
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21949
diff
changeset
|
980 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
|
981 @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
|
982 @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
|
983 @end deftypefn */) |
5476 | 984 { |
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
|
985 if (args.length () != 1) |
5823 | 986 print_usage (); |
5476 | 987 |
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
|
988 double mode = args(0).xdouble_value ("S_ISLNK: 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
|
989 |
21736
0504351a45e6
use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents:
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990 return ovl (octave::sys::file_stat::is_lnk (static_cast<mode_t> (mode))); |
5476 | 991 } |
992 | |
993 DEFUNX ("S_ISSOCK", FS_ISSOCK, args, , | |
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994 doc: /* -*- texinfo -*- |
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995 @deftypefn {} {} S_ISSOCK (@var{mode}) |
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996 Return true if @var{mode} corresponds to a socket. |
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997 |
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998 The value of @var{mode} is assumed to be returned from a call to |
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999 @code{stat}. |
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1000 @seealso{stat, lstat} |
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1001 @end deftypefn */) |
5476 | 1002 { |
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1003 if (args.length () != 1) |
5823 | 1004 print_usage (); |
5476 | 1005 |
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1006 double mode = args(0).xdouble_value ("S_ISSOCK: invalid MODE value"); |
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1007 |
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1008 return ovl (octave::sys::file_stat::is_sock (static_cast<mode_t> (mode))); |
5476 | 1009 } |
1010 | |
11006
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1011 DEFUN (gethostname, args, , |
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1012 doc: /* -*- texinfo -*- |
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1013 @deftypefn {} {} gethostname () |
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1014 Return the hostname of the system where Octave is running. |
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1015 @end deftypefn */) |
11006
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1016 { |
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1017 if (args.length () != 0) |
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1018 print_usage (); |
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1019 |
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1020 return ovl (octave::sys::env::get_host_name ()); |
11006
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1021 } |
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1022 |
5547 | 1023 DEFUN (uname, args, , |
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1024 doc: /* -*- texinfo -*- |
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1025 @deftypefn {} {[@var{uts}, @var{err}, @var{msg}] =} uname () |
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1026 Return system information in the structure. |
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1027 |
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1028 For example: |
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1029 |
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1030 @example |
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1031 @group |
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1032 uname () |
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1033 @result{} @{ |
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1034 sysname = x86_64 |
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1035 nodename = segfault |
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1036 release = 2.6.15-1-amd64-k8-smp |
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1037 version = Linux |
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1038 machine = #2 SMP Thu Feb 23 04:57:49 UTC 2006 |
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1039 @} |
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1040 @end group |
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1041 @end example |
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1042 |
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1043 If successful, @var{err} is 0 and @var{msg} is an empty string. |
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1044 Otherwise, @var{err} is nonzero and @var{msg} contains a |
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1045 system-dependent error message. |
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1046 @end deftypefn */) |
5547 | 1047 { |
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1048 if (args.length () != 0) |
5823 | 1049 print_usage (); |
5547 | 1050 |
21731
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1051 octave::sys::uname sysinfo; |
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1052 |
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1053 octave_scalar_map m; |
5547 | 1054 |
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1055 m.assign ("sysname", sysinfo.sysname ()); |
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1056 m.assign ("nodename", sysinfo.nodename ()); |
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1057 m.assign ("release", sysinfo.release ()); |
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1058 m.assign ("version", sysinfo.version ()); |
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1059 m.assign ("machine", sysinfo.machine ()); |
5547 | 1060 |
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1061 return ovl (m, sysinfo.error (), sysinfo.message ()); |
5547 | 1062 } |
1063 | |
23957
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1064 /* |
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1065 %!test <51869> |
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1066 %! [info, status, msg] = uname (); |
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1067 %! if (status == 0) |
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1068 %! assert (isstruct (info)) |
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1069 %! assert (ischar (msg) && isempty (msg)) |
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1070 %! endif |
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1071 */ |
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1072 |
10197
4d433bd2d4dc
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1073 DEFUNX ("unlink", Funlink, args, , |
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1074 doc: /* -*- texinfo -*- |
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1075 @deftypefn {} {[@var{err}, @var{msg}] =} unlink (@var{file}) |
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1076 Delete the file named @var{file}. |
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1077 |
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1078 If successful, @var{err} is 0 and @var{msg} is an empty string. |
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1079 Otherwise, @var{err} is nonzero and @var{msg} contains a system-dependent |
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1080 error message. |
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1081 @seealso{delete, rmdir} |
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1082 @end deftypefn */) |
2075 | 1083 { |
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1084 if (args.length () != 1) |
5823 | 1085 print_usage (); |
2075 | 1086 |
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1087 std::string name = args(0).xstring_value ("unlink: FILE must be a string"); |
2669 | 1088 |
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1089 std::string msg; |
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1090 |
25742
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1091 octave_link::file_remove (name, ""); |
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1092 |
21733
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1093 int status = octave::sys::unlink (name, msg); |
2669 | 1094 |
25742
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1095 octave_link::file_renamed (status == 0); |
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1096 |
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1097 return ovl (status, msg); |
2075 | 1098 } |
1099 | |
10299
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1100 DEFUNX ("waitpid", Fwaitpid, args, , |
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1101 doc: /* -*- texinfo -*- |
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1102 @deftypefn {} {[@var{pid}, @var{status}, @var{msg}] =} waitpid (@var{pid}, @var{options}) |
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1103 Wait for process @var{pid} to terminate. |
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1104 |
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1105 The @var{pid} argument can be: |
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1106 |
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1107 @table @asis |
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1108 @item @minus{}1 |
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1109 Wait for any child process. |
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1110 |
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1111 @item 0 |
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1112 Wait for any child process whose process group ID is equal to that of the |
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1113 Octave interpreter process. |
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1114 |
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1115 @item > 0 |
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1116 Wait for termination of the child process with ID @var{pid}. |
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1117 @end table |
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1118 |
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1119 The @var{options} argument can be a bitwise OR of zero or more of the |
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1120 following constants: |
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1121 |
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1122 @table @code |
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1123 @item 0 |
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1124 Wait until signal is received or a child process exits (this is the default |
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1125 if the @var{options} argument is missing). |
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1126 |
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1127 @item WNOHANG |
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1128 Do not hang if status is not immediately available. |
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1129 |
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1130 @item WUNTRACED |
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1131 Report the status of any child processes that are stopped, and whose status |
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1132 has not yet been reported since they stopped. |
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1133 |
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1134 @item WCONTINUE |
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1135 Return if a stopped child has been resumed by delivery of @code{SIGCONT}. |
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1136 This value may not be meaningful on all systems. |
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1137 @end table |
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1138 |
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1139 If the returned value of @var{pid} is greater than 0, it is the process ID |
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1140 of the child process that exited. If an error occurs, @var{pid} will be |
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1141 less than zero and @var{msg} will contain a system-dependent error message. |
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1142 The value of @var{status} contains additional system-dependent information |
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1143 about the subprocess that exited. |
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1144 @seealso{WCONTINUE, WCOREDUMP, WEXITSTATUS, WIFCONTINUED, WIFSIGNALED, WIFSTOPPED, WNOHANG, WSTOPSIG, WTERMSIG, WUNTRACED} |
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1145 @end deftypefn */) |
2075 | 1146 { |
1147 int nargin = args.length (); | |
1148 | |
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1149 if (nargin != 1 && nargin != 2) |
5823 | 1150 print_usage (); |
2075 | 1151 |
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1152 pid_t pid = args(0).xint_value ("waitpid: OPTIONS must be an integer"); |
11586
12df7854fa7c
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1153 |
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1154 int options = 0; |
2075 | 1155 |
20887
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1156 if (nargin == 2) |
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1157 options = args(1).xint_value ("waitpid: PID must be an integer value"); |
2669 | 1158 |
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1159 std::string msg; |
20887
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1160 int status; |
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1161 |
21727
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1162 pid_t result = octave::sys::waitpid (pid, &status, options, msg); |
2075 | 1163 |
20887
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1164 return ovl (result, status, msg); |
2075 | 1165 } |
1166 | |
5453 | 1167 DEFUNX ("WIFEXITED", FWIFEXITED, args, , |
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1168 doc: /* -*- texinfo -*- |
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1169 @deftypefn {} {} WIFEXITED (@var{status}) |
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1170 Given @var{status} from a call to @code{waitpid}, return |
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1171 true if the child terminated normally. |
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1172 @seealso{waitpid, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED} |
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1173 @end deftypefn */) |
5453 | 1174 { |
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1175 if (args.length () != 1) |
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1176 print_usage (); |
5453 | 1177 |
20856
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1178 int status = args(0).xint_value ("WIFEXITED: STATUS must be an integer"); |
5453 | 1179 |
21921
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1180 return ovl (octave::sys::wifexited (status)); |
5453 | 1181 } |
1182 | |
1183 DEFUNX ("WEXITSTATUS", FWEXITSTATUS, args, , | |
21966
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1184 doc: /* -*- texinfo -*- |
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1185 @deftypefn {} {} WEXITSTATUS (@var{status}) |
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1186 Given @var{status} from a call to @code{waitpid}, return |
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1187 the exit status of the child. |
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1188 |
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1189 This function should only be employed if @code{WIFEXITED} returned true. |
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1190 @seealso{waitpid, WIFEXITED, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED} |
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1191 @end deftypefn */) |
5453 | 1192 { |
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2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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1193 if (args.length () != 1) |
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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20856
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|
1194 print_usage (); |
5453 | 1195 |
20887
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2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
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1196 int status = args(0).xint_value ("WEXITSTATUS: STATUS must be an integer"); |
5453 | 1197 |
21921
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1198 return ovl (octave::sys::wexitstatus (status)); |
5453 | 1199 } |
1200 | |
1201 DEFUNX ("WIFSIGNALED", FWIFSIGNALED, args, , | |
21966
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1202 doc: /* -*- texinfo -*- |
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1203 @deftypefn {} {} WIFSIGNALED (@var{status}) |
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1204 Given @var{status} from a call to @code{waitpid}, return |
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1205 true if the child process was terminated by a signal. |
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1206 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED} |
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1207 @end deftypefn */) |
5453 | 1208 { |
20856
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1209 if (args.length () != 1) |
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1210 print_usage (); |
5453 | 1211 |
20856
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1212 int status = args(0).xint_value ("WIFSIGNALED: STATUS must be an integer"); |
5453 | 1213 |
21921
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1214 return ovl (octave::sys::wifsignaled (status)); |
5453 | 1215 } |
1216 | |
1217 DEFUNX ("WTERMSIG", FWTERMSIG, args, , | |
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1218 doc: /* -*- texinfo -*- |
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1219 @deftypefn {} {} WTERMSIG (@var{status}) |
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1220 Given @var{status} from a call to @code{waitpid}, return |
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1221 the number of the signal that caused the child process to terminate. |
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1222 |
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1223 This function should only be employed if @code{WIFSIGNALED} returned true. |
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1224 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WCOREDUMP, WIFSTOPPED, WSTOPSIG, WIFCONTINUED} |
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1225 @end deftypefn */) |
5453 | 1226 { |
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1227 if (args.length () != 1) |
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1228 print_usage (); |
5453 | 1229 |
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1230 int status = args(0).xint_value ("WTERMSIG: STATUS must be an integer"); |
5453 | 1231 |
21921
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1232 return ovl (octave::sys::wtermsig (status)); |
5453 | 1233 } |
1234 | |
1235 DEFUNX ("WCOREDUMP", FWCOREDUMP, args, , | |
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1236 doc: /* -*- texinfo -*- |
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1237 @deftypefn {} {} WCOREDUMP (@var{status}) |
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1238 Given @var{status} from a call to @code{waitpid}, return |
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1239 true if the child produced a core dump. |
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1240 |
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1241 This function should only be employed if @code{WIFSIGNALED} returned true. |
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1242 The macro used to implement this function is not specified in POSIX.1-2001 |
25003
2365c2661b3c
doc: Spellcheck documentation ahead of 4.4 release.
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24534
diff
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|
1243 and is not available on some Unix implementations (e.g., @nospell{AIX, SunOS}). |
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1244 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WIFSTOPPED, WSTOPSIG, WIFCONTINUED} |
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1245 @end deftypefn */) |
5453 | 1246 { |
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1247 if (args.length () != 1) |
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1248 print_usage (); |
5453 | 1249 |
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1250 int status = args(0).xint_value ("WCOREDUMP: STATUS must be an integer"); |
5453 | 1251 |
21921
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1252 return ovl (octave::sys::wcoredump (status)); |
5453 | 1253 } |
1254 | |
1255 DEFUNX ("WIFSTOPPED", FWIFSTOPPED, args, , | |
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1256 doc: /* -*- texinfo -*- |
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1257 @deftypefn {} {} WIFSTOPPED (@var{status}) |
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1258 Given @var{status} from a call to @code{waitpid}, return |
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|
1259 true if the child process was stopped by delivery of a signal. |
112b20240c87
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changeset
|
1260 |
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changeset
|
1261 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
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1262 the child is being traced (see ptrace(2)). |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
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|
1263 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WSTOPSIG, WIFCONTINUED} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
1264 @end deftypefn */) |
5453 | 1265 { |
20856
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
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20853
diff
changeset
|
1266 if (args.length () != 1) |
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
|
1267 print_usage (); |
5453 | 1268 |
20856
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
parents:
20853
diff
changeset
|
1269 int status = args(0).xint_value ("WIFSTOPPED: STATUS must be an integer"); |
5453 | 1270 |
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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|
1271 return ovl (octave::sys::wifstopped (status)); |
5453 | 1272 } |
1273 | |
1274 DEFUNX ("WSTOPSIG", FWSTOPSIG, args, , | |
21966
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move docstrings in C++ files out of C strings and into comments
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|
1275 doc: /* -*- texinfo -*- |
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move docstrings in C++ files out of C strings and into comments
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|
1276 @deftypefn {} {} WSTOPSIG (@var{status}) |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
1277 Given @var{status} from a call to @code{waitpid}, return |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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diff
changeset
|
1278 the number of the signal which caused the child to stop. |
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|
1279 |
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move docstrings in C++ files out of C strings and into comments
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|
1280 This function should only be employed if @code{WIFSTOPPED} returned true. |
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move docstrings in C++ files out of C strings and into comments
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|
1281 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WIFCONTINUED} |
112b20240c87
move docstrings in C++ files out of C strings and into comments
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changeset
|
1282 @end deftypefn */) |
5453 | 1283 { |
20856
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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changeset
|
1284 if (args.length () != 1) |
b3a18c764161
Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
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changeset
|
1285 print_usage (); |
5453 | 1286 |
20856
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Code sprint 2015: Refactor print_usage() in syscalls.cc to resemble m-files
Yu Liu <yul.liuiyu@gmail.com>
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changeset
|
1287 int status = args(0).xint_value ("WSTOPSIG: STATUS must be an integer"); |
5453 | 1288 |
21921
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|
1289 return ovl (octave::sys::wstopsig (status)); |
5453 | 1290 } |
1291 | |
1292 DEFUNX ("WIFCONTINUED", FWIFCONTINUED, args, , | |
21966
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|
1293 doc: /* -*- texinfo -*- |
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1294 @deftypefn {} {} WIFCONTINUED (@var{status}) |
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|
1295 Given @var{status} from a call to @code{waitpid}, return |
112b20240c87
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|
1296 true if the child process was resumed by delivery of @code{SIGCONT}. |
112b20240c87
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1297 @seealso{waitpid, WIFEXITED, WEXITSTATUS, WIFSIGNALED, WTERMSIG, WCOREDUMP, WIFSTOPPED, WSTOPSIG} |
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changeset
|
1298 @end deftypefn */) |
5453 | 1299 { |
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changeset
|
1300 if (args.length () != 1) |
b3a18c764161
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changeset
|
1301 print_usage (); |
5453 | 1302 |
20856
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|
1303 int status = args(0).xint_value ("WIFCONTINUED: STATUS must be an integer"); |
5453 | 1304 |
21921
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|
1305 return ovl (octave::sys::wifcontinued (status)); |
5453 | 1306 } |
1307 | |
10249
14eba566f9f0
use DEFUNX instead of DEFUN for canonicalize_file_name
John W. Eaton <jwe@octave.org>
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10197
diff
changeset
|
1308 DEFUNX ("canonicalize_file_name", Fcanonicalize_file_name, args, , |
21966
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|
1309 doc: /* -*- texinfo -*- |
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1310 @deftypefn {} {[@var{cname}, @var{status}, @var{msg}] =} canonicalize_file_name (@var{fname}) |
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|
1311 Return the canonical name of file @var{fname}. |
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1312 |
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1313 If the file does not exist the empty string ("") is returned. |
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1314 @seealso{make_absolute_filename, is_absolute_filename, is_rooted_relative_filename} |
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|
1315 @end deftypefn */) |
5138 | 1316 { |
20856
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changeset
|
1317 if (args.length () != 1) |
5823 | 1318 print_usage (); |
5138 | 1319 |
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changeset
|
1320 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>
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changeset
|
1321 |
20856
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|
1322 std::string msg; |
20581
fd0efcdb3718
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diff
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|
1323 |
21733
cb0fdd941d84
use namespace for system file_ops class
John W. Eaton <jwe@octave.org>
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21732
diff
changeset
|
1324 std::string result = octave::sys::canonicalize_file_name (name, msg); |
20856
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changeset
|
1325 |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
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20856
diff
changeset
|
1326 return ovl (result, msg.empty () ? 0 : -1, msg); |
5138 | 1327 } |
1328 | |
20887
05125a9eb9c6
2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
parents:
20856
diff
changeset
|
1329 static inline octave_value |
7924 | 1330 const_value (const octave_value_list& args, int val) |
5749 | 1331 { |
20887
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2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
Rik <rik@octave.org>
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changeset
|
1332 if (args.length () != 0) |
5823 | 1333 print_usage (); |
5749 | 1334 |
20887
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2015 Code Sprint: syscalls.cc: use ovl (), move print_usage to top of fcn.
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|
1335 return octave_value (val); |
5749 | 1336 } |
1337 | |
21921
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1338 DEFUNX ("F_DUPFD", FF_DUPFD, args, , |
21966
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1339 doc: /* -*- texinfo -*- |
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1340 @deftypefn {} {} F_DUPFD () |
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|
1341 Return the numerical value to pass to @code{fcntl} to return |
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1342 a duplicate file descriptor. |
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1343 @seealso{fcntl, F_GETFD, F_GETFL, F_SETFD, F_SETFL} |
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|
1344 @end deftypefn */) |
2075 | 1345 { |
21911 | 1346 static int val = octave_f_dupfd_wrapper (); |
1347 | |
1348 if (val < 0) | |
1349 err_disabled_feature ("F_DUPFD", "F_DUPFD"); | |
1350 | |
1351 return const_value (args, val); | |
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|
1352 } |
2075 | 1353 |
21921
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1354 DEFUNX ("F_GETFD", FF_GETFD, args, , |
21966
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1355 doc: /* -*- texinfo -*- |
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1356 @deftypefn {} {} F_GETFD () |
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1357 Return the numerical value to pass to @code{fcntl} to return |
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1358 the file descriptor flags. |
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|
1359 @seealso{fcntl, F_DUPFD, F_GETFL, F_SETFD, F_SETFL} |
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|
1360 @end deftypefn */) |
5749 | 1361 { |
21911 | 1362 static int val = octave_f_getfd_wrapper (); |
1363 | |
1364 if (val < 0) | |
1365 err_disabled_feature ("F_GETFD", "F_GETFD"); | |
1366 | |
1367 return const_value (args, val); | |
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|
1368 } |
2075 | 1369 |
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1370 DEFUNX ("F_GETFL", FF_GETFL, args, , |
21966
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1371 doc: /* -*- texinfo -*- |
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1372 @deftypefn {} {} F_GETFL () |
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1373 Return the numerical value to pass to @code{fcntl} to return |
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1374 the file status flags. |
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1375 @seealso{fcntl, F_DUPFD, F_GETFD, F_SETFD, F_SETFL} |
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1376 @end deftypefn */) |
5749 | 1377 { |
21911 | 1378 static int val = octave_f_getfl_wrapper (); |
1379 | |
1380 if (val < 0) | |
1381 err_disabled_feature ("F_GETFL", "F_GETFL"); | |
1382 | |
1383 return const_value (args, val); | |
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1384 } |
2075 | 1385 |
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1386 DEFUNX ("F_SETFD", FF_SETFD, args, , |
21966
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1387 doc: /* -*- texinfo -*- |
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1388 @deftypefn {} {} F_SETFD () |
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1389 Return the numerical value to pass to @code{fcntl} to set the file |
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1390 descriptor flags. |
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1391 @seealso{fcntl, F_DUPFD, F_GETFD, F_GETFL, F_SETFL} |
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1392 @end deftypefn */) |
5749 | 1393 { |
21911 | 1394 static int val = octave_f_setfd_wrapper (); |
1395 | |
1396 if (val < 0) | |
1397 err_disabled_feature ("F_SETFD", "F_SETFD"); | |
1398 | |
1399 return const_value (args, val); | |
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1400 } |
2075 | 1401 |
21921
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1402 DEFUNX ("F_SETFL", FF_SETFL, args, , |
21966
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1403 doc: /* -*- texinfo -*- |
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1404 @deftypefn {} {} F_SETFL () |
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1405 Return the numerical value to pass to @code{fcntl} to set the file |
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1406 status flags. |
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1407 @seealso{fcntl, F_DUPFD, F_GETFD, F_GETFL, F_SETFD} |
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1408 @end deftypefn */) |
5749 | 1409 { |
21911 | 1410 static int val = octave_f_setfl_wrapper (); |
1411 | |
1412 if (val < 0) | |
1413 err_disabled_feature ("F_SETFL", "F_SETFL"); | |
1414 | |
1415 return const_value (args, val); | |
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1416 } |
2075 | 1417 |
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1418 DEFUNX ("O_APPEND", FO_APPEND, args, , |
21966
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1419 doc: /* -*- texinfo -*- |
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1420 @deftypefn {} {} O_APPEND () |
25113
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1421 Return the numerical value of the @code{O_APPEND} macro. |
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1422 |
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|
1423 @code{O_APPEND} is file status flag that may be returned by @code{fcntl} |
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|
1424 to indicate each write operation appends, or that may be passed to |
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diff
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|
1425 @code{fcntl} to set the write mode to append. |
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|
1426 @seealso{fcntl, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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|
1427 @end deftypefn */) |
5749 | 1428 { |
21911 | 1429 static int val = octave_o_append_wrapper (); |
1430 | |
1431 if (val < 0) | |
1432 err_disabled_feature ("O_APPEND", "O_APPEND"); | |
1433 | |
1434 return const_value (args, val); | |
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1435 } |
2075 | 1436 |
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1437 DEFUNX ("O_ASYNC", FO_ASYNC, args, , |
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1438 doc: /* -*- texinfo -*- |
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1439 @deftypefn {} {} O_ASYNC () |
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|
1440 Return the numerical value of the @code{O_ASYNC} macro. |
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1441 |
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1442 @code{O_ASYNC} is the file status flag that may be returned by |
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|
1443 @code{fcntl} to indicate asynchronous I/O. |
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1444 @seealso{fcntl, O_APPEND, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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1445 @end deftypefn */) |
5749 | 1446 { |
21911 | 1447 static int val = octave_o_async_wrapper (); |
1448 | |
1449 if (val < 0) | |
1450 err_disabled_feature ("O_ASYNC", "O_ASYNC"); | |
1451 | |
1452 return const_value (args, val); | |
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1453 } |
2669 | 1454 |
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1455 DEFUNX ("O_CREAT", FO_CREAT, args, , |
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1456 doc: /* -*- texinfo -*- |
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1457 @deftypefn {} {} O_CREAT () |
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1458 Return the numerical value of the @code{O_CREAT}. |
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1459 |
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1460 @code{O_CREAT} is the file status flag that may be returned by |
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1461 @code{fcntl} to indicate that a file should be created if it does not |
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1462 exist. |
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1463 @seealso{fcntl, O_APPEND, O_ASYNC, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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1464 @end deftypefn */) |
5749 | 1465 { |
21911 | 1466 static int val = octave_o_creat_wrapper (); |
1467 | |
1468 if (val < 0) | |
1469 err_disabled_feature ("O_CREAT", "O_CREAT"); | |
1470 | |
1471 return const_value (args, val); | |
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1472 } |
2075 | 1473 |
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1474 DEFUNX ("O_EXCL", FO_EXCL, args, , |
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1475 doc: /* -*- texinfo -*- |
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1476 @deftypefn {} {} O_EXCL () |
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1477 Return the numerical value of the @code{O_EXCL}. |
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1478 |
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1479 @code{O_EXCL} is the file status flag that may be returned by |
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1480 @code{fcntl} to indicate that file locking is used. |
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1481 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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|
1482 @end deftypefn */) |
5749 | 1483 { |
21911 | 1484 static int val = octave_o_excl_wrapper (); |
1485 | |
1486 if (val < 0) | |
1487 err_disabled_feature ("O_EXCL", "O_EXCL"); | |
1488 | |
1489 return const_value (args, val); | |
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1490 } |
2075 | 1491 |
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1492 DEFUNX ("O_NONBLOCK", FO_NONBLOCK, args, , |
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1493 doc: /* -*- texinfo -*- |
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1494 @deftypefn {} {} O_NONBLOCK () |
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1495 Return the numerical value of the @code{O_NONBLOCK}. |
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1496 |
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1497 @code{O_NONBLOCK} is the file status flag that may be returned by |
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1498 @code{fcntl} to indicate that non-blocking I/O is in use, or that may be |
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1499 passsed to @code{fcntl} to set non-blocking I/O. |
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1500 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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1501 @end deftypefn */) |
5749 | 1502 { |
21911 | 1503 static int val = octave_o_nonblock_wrapper (); |
1504 | |
1505 if (val < 0) | |
1506 err_disabled_feature ("O_NONBLOCK", "O_NONBLOCK"); | |
1507 | |
1508 return const_value (args, val); | |
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1509 } |
2075 | 1510 |
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1511 DEFUNX ("O_RDONLY", FO_RDONLY, args, , |
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1512 doc: /* -*- texinfo -*- |
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1513 @deftypefn {} {} O_RDONLY () |
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1514 Return the numerical value of the @code{O_RDONLY}. |
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1515 |
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|
1516 @code{O_RDONLY} is the file status flag that may be returned by |
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|
1517 @code{fcntl} to indicate that a file is open for reading only. |
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1518 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDWR, O_SYNC, O_TRUNC, O_WRONLY} |
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1519 @end deftypefn */) |
5749 | 1520 { |
21911 | 1521 static int val = octave_o_rdonly_wrapper (); |
1522 | |
1523 if (val < 0) | |
1524 err_disabled_feature ("O_RDONLY", "O_RDONLY"); | |
1525 | |
1526 return const_value (args, val); | |
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1527 } |
2075 | 1528 |
21921
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1529 DEFUNX ("O_RDWR", FO_RDWR, args, , |
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1530 doc: /* -*- texinfo -*- |
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1531 @deftypefn {} {} O_RDWR () |
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1532 Return the numerical value of the @code{O_RDWR}. |
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1533 |
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1534 @code{O_RDWR} is the file status flag that may be returned by |
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1535 @code{fcntl} to indicate that a file is open for both reading and |
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1536 writing. |
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1537 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_SYNC, O_TRUNC, O_WRONLY} |
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1538 @end deftypefn */) |
5749 | 1539 { |
21911 | 1540 static int val = octave_o_rdwr_wrapper (); |
1541 | |
1542 if (val < 0) | |
1543 err_disabled_feature ("O_RDWR", "O_RDWR"); | |
1544 | |
1545 return const_value (args, val); | |
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1546 } |
2075 | 1547 |
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1548 DEFUNX ("O_SYNC", FO_SYNC, args, , |
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1549 doc: /* -*- texinfo -*- |
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1550 @deftypefn {} {} O_SYNC () |
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1551 Return the numerical value of the @code{O_SYNC}. |
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1552 |
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1553 @code{O_SYNC} is the file status flag that may be returned by |
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1554 @code{fcntl} to indicate that a file is open for synchronous I/O |
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1555 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_TRUNC, O_WRONLY} |
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|
1556 @end deftypefn */) |
5749 | 1557 { |
21911 | 1558 static int val = octave_o_sync_wrapper (); |
1559 | |
1560 if (val < 0) | |
1561 err_disabled_feature ("O_SYNC", "O_SYNC"); | |
1562 | |
1563 return const_value (args, val); | |
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1564 } |
2669 | 1565 |
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1566 DEFUNX ("O_TRUNC", FO_TRUNC, args, , |
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1567 doc: /* -*- texinfo -*- |
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1568 @deftypefn {} {} O_TRUNC () |
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1569 Return the numerical value of the @code{O_TRUNC}. |
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|
1570 |
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1571 @code{O_TRUNC} is the file status flag that may be returned by |
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|
1572 @code{fcntl} to indicate that if file exists, it should be truncated |
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|
1573 when writing. |
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|
1574 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_WRONLY} |
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1575 @end deftypefn */) |
5749 | 1576 { |
21911 | 1577 static int val = octave_o_trunc_wrapper (); |
1578 | |
1579 if (val < 0) | |
1580 err_disabled_feature ("O_TRUNC", "O_TRUNC"); | |
1581 | |
1582 return const_value (args, val); | |
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1583 } |
2075 | 1584 |
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1585 DEFUNX ("O_WRONLY", FO_WRONLY, args, , |
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1586 doc: /* -*- texinfo -*- |
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1587 @deftypefn {} {} O_WRONLY () |
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1588 Return the numerical value of the @code{O_WRONLY}. |
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1589 |
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1590 @code{O_WRONLY} is the file status flag that may be returned by |
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1591 @code{fcntl} to indicate that a file is open for writing only |
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1592 @seealso{fcntl, O_APPEND, O_ASYNC, O_CREAT, O_EXCL, O_NONBLOCK, O_RDONLY, O_RDWR, O_SYNC, O_TRUNC} |
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1593 @end deftypefn */) |
5749 | 1594 { |
21911 | 1595 static int val = octave_o_wronly_wrapper (); |
1596 | |
1597 if (val < 0) | |
1598 err_disabled_feature ("O_WRONLY", "O_WRONLY"); | |
1599 | |
1600 return const_value (args, val); | |
5749 | 1601 } |
3446 | 1602 |
5749 | 1603 DEFUNX ("WNOHANG", FWNOHANG, args, , |
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1604 doc: /* -*- texinfo -*- |
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1605 @deftypefn {} {} WNOHANG () |
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1606 Return the numerical value of the @code{WNOHANG} macro. |
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1607 |
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1608 @code{WNOHANG} is the option argument that may be passed to |
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1609 @code{waitpid} to indicate that it should return its status immediately |
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1610 instead of waiting for a process to exit. |
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1611 @seealso{waitpid, WUNTRACED, WCONTINUE} |
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1612 @end deftypefn */) |
5749 | 1613 { |
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1614 return const_value (args, octave::sys::wnohang ()); |
5749 | 1615 } |
5453 | 1616 |
5749 | 1617 DEFUNX ("WUNTRACED", FWUNTRACED, args, , |
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1618 doc: /* -*- texinfo -*- |
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1619 @deftypefn {} {} WUNTRACED () |
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1620 Return the numerical value of the @code{WUNTRACED} macro. |
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1621 |
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1622 @code{WUNTRACED} is the option argument that may be passed to |
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1623 @code{waitpid} to indicate that it should also return if the child |
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1624 process has stopped but is not traced via the @code{ptrace} system call |
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1625 @seealso{waitpid, WNOHANG, WCONTINUE} |
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1626 @end deftypefn */) |
5749 | 1627 { |
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1628 return const_value (args, octave::sys::wuntraced ()); |
5749 | 1629 } |
5453 | 1630 |
5749 | 1631 DEFUNX ("WCONTINUE", FWCONTINUE, args, , |
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1632 doc: /* -*- texinfo -*- |
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1633 @deftypefn {} {} WCONTINUE () |
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1634 Return the numerical value of the @code{WCONTINUE} macro. |
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1635 |
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1636 @code{WCONTINUE} is the option argument that may be passed to |
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1637 @code{waitpid} to indicate that it should also return if a stopped child |
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1638 has been resumed by delivery of a @code{SIGCONT} signal. |
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1639 @seealso{waitpid, WNOHANG, WUNTRACED} |
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1640 @end deftypefn */) |
5749 | 1641 { |
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1642 return const_value (args, octave::sys::wcontinue ()); |
2075 | 1643 } |