annotate src/syscalls.cc @ 2366:c90105b99479

[project @ 1996-10-11 23:22:27 by jwe]
author jwe
date Fri, 11 Oct 1996 23:32:05 +0000
parents 5a3f1d00a474
children f667d7ec08b9
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1 /*
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2
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3 Copyright (C) 1996 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 2, or (at your option) any
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10 later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, write to the Free
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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20
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21 */
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22
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23 // Thomas Baier <baier@ci.tuwien.ac.at> added the original versions of
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24 // the following functions:
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25 //
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26 // mkfifo unlink waitpid
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27
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28 #ifdef HAVE_CONFIG_H
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29 #include <config.h>
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30 #endif
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31
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32 #include <cstdio>
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33
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34 #ifdef HAVE_UNISTD_H
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35 #include <sys/types.h>
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36 #include <unistd.h>
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37 #endif
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38
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39 #ifdef HAVE_FCNTL_H
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40 #include <fcntl.h>
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41 #endif
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42
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43 #include "defun.h"
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44 #include "error.h"
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45 #include "file-ops.h"
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46 #include "gripes.h"
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47 #include "help.h"
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48 #include "lo-utils.h"
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49 #include "oct-map.h"
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50 #include "oct-obj.h"
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51 #include "oct-stdstrm.h"
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52 #include "oct-stream.h"
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53 #include "sysdep.h"
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54 #include "syswait.h"
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55 #include "utils.h"
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56 #include "variables.h"
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57
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58 static Octave_map
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59 mk_stat_map (const file_stat& fs)
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60 {
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61 Octave_map m;
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62
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63 m["dev"] = (double) fs.dev ();
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64 m["ino"] = (double) fs.ino ();
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65 m["modestr"] = fs.mode_as_string ();
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66 m["nlink"] = (double) fs.nlink ();
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67 m["uid"] = (double) fs.uid ();
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68 m["gid"] = (double) fs.gid ();
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69 #if defined (HAVE_ST_RDEV)
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70 m["rdev"] = (double) fs.rdev ();
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71 #endif
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72 m["size"] = (double) fs.size ();
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73 m["atime"] = (double) fs.atime ();
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74 m["mtime"] = (double) fs.mtime ();
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75 m["ctime"] = (double) fs.ctime ();
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76 #if defined (HAVE_ST_BLKSIZE)
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77 m["blksize"] = (double) fs.blksize ();
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78 #endif
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79 #if defined (HAVE_ST_BLOCKS)
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80 m["blocks"] = (double) fs.blocks ();
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81 #endif
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82
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83 return m;
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84 }
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85
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86 DEFUN(dup2, args, ,
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87 "fid = dup2 (old, new): duplicate a file descriptor")
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88 {
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89 double retval = -1.0;
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90
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91 #if defined (HAVE_DUP2)
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92 int nargin = args.length ();
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93
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94 if (nargin == 2)
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95 {
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96 double d_old = args(0).double_value ();
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97 double d_new = args(1).double_value ();
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98
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99 if (! error_state)
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100 {
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101 if (D_NINT (d_old) == d_old && D_NINT (d_new) == d_new)
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102 {
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103 int i_old = NINT (d_old);
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104 int i_new = NINT (d_new);
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105
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106 // XXX FIXME XXX -- are these checks sufficient?
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107 if (i_old >= 0 && i_new >= 0)
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108 retval = (double) dup2 (i_old, i_new);
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109 else
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110 error ("dup2: invalid file id");
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111 }
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112 else
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113 error ("dup2: arguments must be integer values");
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114 }
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115 }
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116 else
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117 print_usage ("dup2");
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118 #else
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119 gripe_not_supported ("dup2");
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120 #endif
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121
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122 return retval;
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123 }
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124
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125 DEFUN(exec, args, ,
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126 "exec (file, args): replace current process with a new process")
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127 {
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128 double retval = -1.0;
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129
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130 #if defined (HAVE_EXECVP)
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131 int nargin = args.length ();
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132
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133 if (nargin == 1 || nargin == 2)
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134 {
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135 string exec_file = args(0).string_value ();
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136
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137 if (! error_state)
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138 {
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139 char **exec_args = 0;
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140
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141 if (nargin == 2)
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142 {
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143 charMatrix chm = args(1).all_strings ();
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144
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145 if (! error_state)
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146 {
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147 int nr = chm.rows ();
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148 int nc = chm.cols ();
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149
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150 exec_args = new char * [nr+2];
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151
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152 // XXX FIXME XXX -- potential leak?
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153
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154 exec_args[0] = strsave (exec_file.c_str ());
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155 exec_args[nr+1] = 0;
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156
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157 for (int i = 0; i < nr; i++)
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158 {
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159 exec_args[i+1] = new char [nc+1];
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160
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161 for (int j = 0; j < nc; j++)
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162 exec_args[i+1][j] = chm (i, j);
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163
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164 exec_args[i+1][nc] = '\0';
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165 }
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166 }
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167 else
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168 error ("exec: arguments must be strings");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
169 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
170 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
171 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
172 exec_args = new char * [2];
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
173
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
174 exec_args[0] = strsave (exec_file.c_str ());
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
175 exec_args[1] = 0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
176 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
177
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
178 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
179 execvp (exec_file.c_str (), exec_args);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
180 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
181 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
182 error ("exec: first argument must be a string");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
183 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
184 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
185 print_usage ("exec");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
186 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
187 gripe_not_supported ("exec");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
188 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
189
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
190 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
191 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
192
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
193 DEFUN(fcntl, args, ,
2080
452f63bfa60c [project @ 1996-04-24 07:49:00 by jwe]
jwe
parents: 2078
diff changeset
194 "fcntl (fid, request, argument): control open file descriptors")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
195 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
196 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
197
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
198 #if defined (HAVE_FCNTL)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
199 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
200
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
201 if (nargin == 3)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
202 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
203 double d_fid = args(0).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
204 double d_req = args(1).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
205 double d_arg = args(2).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
206
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
207 if (! error_state
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
208 && D_NINT (d_fid) == d_fid
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
209 && D_NINT (d_req) == d_req
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
210 && D_NINT (d_arg) == d_arg)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
211 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
212 int fid = NINT (d_fid);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
213 int req = NINT (d_req);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
214 int arg = NINT (d_arg);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
215
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
216 // XXX FIXME XXX -- Need better checking here?
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
217 if (fid < 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
218 error ("fcntl: invalid file id");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
219 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
220 retval = fcntl (fid, req, arg);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
221 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
222 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
223 error ("fcntl: file id must be an integer");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
224 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
225 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
226 print_usage ("fcntl");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
227 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
228 gripe_not_supported ("fcntl");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
229 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
230
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
231 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
232 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
233
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
234 DEFUN(fork, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
235 "fork (): create a copy of the current process")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
236 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
237 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
238
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
239 #if defined (HAVE_FORK)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
240 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
241
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
242 if (nargin == 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
243 retval = fork ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
244 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
245 print_usage ("fork");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
246 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
247 gripe_not_supported ("fork");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
248 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
249
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
250 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
251 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
252
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
253 DEFUN(getpgrp, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
254 "pgid = getpgrp (): return the process group id of the current process")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
255 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
256 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
257
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
258 #if defined (HAVE_GETPGRP)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
259 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
260
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
261 if (nargin == 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
262 retval = getpgrp ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
263 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
264 print_usage ("getpgrp");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
265 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
266 gripe_not_supported ("getpgrp");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
267 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
268
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
269 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
270 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
271
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
272 DEFUN(getpid, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
273 "pid = getpid (): return the process id of the current process")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
274 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
275 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
276
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
277 #if defined (HAVE_GETPID)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
278 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
279
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
280 if (nargin == 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
281 retval = getpid ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
282 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
283 print_usage ("getpid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
284 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
285 gripe_not_supported ("getpid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
286 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
287
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
288 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
289 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
290
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
291 DEFUN(getppid, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
292 "pid = getppid (): return the process id of the parent process")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
293 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
294 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
295
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
296 #if defined (HAVE_GETPPID)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
297 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
298
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
299 if (nargin == 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
300 retval = getppid ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
301 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
302 print_usage ("getppid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
303 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
304 gripe_not_supported ("getppid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
305 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
306
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
307 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
308 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
309
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
310 DEFUN (lstat, args, ,
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
311 "[S, ERR, MSG] = lstat (NAME)\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
312 \n\
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
313 Like [S, ERR, MSG] = stat (NAME), but if NAME refers to a symbolic\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
314 link, returns information about the link itself, not the file that it\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
315 points to.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
316 {
2263
dafbde8087e6 [project @ 1996-05-23 18:44:40 by jwe]
jwe
parents: 2262
diff changeset
317 octave_value_list retval;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
318
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
319 if (args.length () == 1)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
320 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
321 string fname = oct_tilde_expand (args(0).string_value ());
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
322
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
323 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
324 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
325 file_stat fs (fname, false);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
326
2263
dafbde8087e6 [project @ 1996-05-23 18:44:40 by jwe]
jwe
parents: 2262
diff changeset
327 if (fs)
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
328 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
329 retval(2) = string ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
330 retval(1) = 0.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
331 retval(0) = octave_value (mk_stat_map (fs));
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
332 }
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
333 else
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
334 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
335 retval(2) = fs.error ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
336 retval(1) = -1.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
337 retval(0) = Matrix ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
338 }
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
339 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
340 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
341 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
342 print_usage ("lstat");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
343
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
344 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
345 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
346
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
347 DEFUN (mkfifo, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
348 "STATUS = mkfifo (NAME, MODE)\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
349 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
350 Create a FIFO special file named NAME with file mode MODE\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
351 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
352 STATUS is:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
353 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
354 != 0 : if mkfifo failed\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
355 0 : if the FIFO special file could be created")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
356 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
357 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
358
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
359 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
360
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
361 if (nargin == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
362 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
363 if (args(0).is_string ())
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
364 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
365 string name = args(0).string_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
366
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
367 if (args(1).is_scalar_type ())
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
368 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
369 long mode = (long) args(1).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
370
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
371 retval = oct_mkfifo (name, mode);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
372 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
373 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
374 error ("mkfifo: MODE must be an integer");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
375 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
376 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
377 error ("mkfifo: file name must be a string");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
378
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
379 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
380 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
381 print_usage ("mkfifo");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
382
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
383 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
384 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
385
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
386 DEFUN (pipe, args, ,
2080
452f63bfa60c [project @ 1996-04-24 07:49:00 by jwe]
jwe
parents: 2078
diff changeset
387 "[file_ids, status] = pipe (): create an interprocess channel")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
388 {
2086
bfb775fb6fe8 [project @ 1996-04-25 05:55:19 by jwe]
jwe
parents: 2080
diff changeset
389 octave_value_list retval (2, octave_value (-1.0));
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
390
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
391 #if defined (HAVE_PIPE)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
392 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
393
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
394 if (nargin == 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
395 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
396 int fid[2];
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
397
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
398 if (pipe (fid) >= 0)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
399 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
400 FILE *in_file = fdopen (fid[0], "r");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
401 FILE *out_file = fdopen (fid[1], "w");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
402
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
403 octave_istdiostream *is
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
404 = new octave_istdiostream (string (), in_file);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
405
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
406 octave_ostdiostream *os
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
407 = new octave_ostdiostream (string (), out_file);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
408
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
409 Matrix file_ids (1, 2);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
410
2305
5a3f1d00a474 [project @ 1996-07-09 16:20:40 by jwe]
jwe
parents: 2263
diff changeset
411 file_ids (0, 0) = octave_stream_list::insert (is);
5a3f1d00a474 [project @ 1996-07-09 16:20:40 by jwe]
jwe
parents: 2263
diff changeset
412 file_ids (0, 1) = octave_stream_list::insert (os);
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
413
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
414 retval(0) = file_ids;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
415 retval(1) = 0.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
416 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
417 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
418 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
419 print_usage ("pipe");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
420 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
421 gripe_not_supported ("pipe");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
422 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
423
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
424 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
425 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
426
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
427 DEFUN (stat, args, ,
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
428 "[S, ERR, MSG] = stat (NAME)\n\
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
429 \n\
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
430 Given the name of a file, return a structure S with the following
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
431 elements:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
432 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
433 dev : id of device containing a directory entry for this file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
434 ino : file number of the file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
435 modestr : file mode, as a string of ten letters or dashes as in ls -l\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
436 nlink : number of links\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
437 uid : user id of file's owner\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
438 gid : group id of file's group \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
439 rdev : id of device for block or character special files\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
440 size : size in bytes\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
441 atime : time of last access\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
442 mtime : time of last modification\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
443 ctime : time of last file status change\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
444 blksize : size of blocks in the file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
445 blocks : number of blocks allocated for file\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
446 \n\
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
447 If the call is successful, ERR is 0 and MSG is an empty string.\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
448 \n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
449 If the file does not exist, or some other error occurs, S is an\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
450 empty matrix, ERR is -1, and MSG contains the corresponding\n\
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
451 system error message.")
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
452 {
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
453 octave_value_list retval;
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
454
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
455 if (args.length () == 1)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
456 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
457 string fname = oct_tilde_expand (args(0).string_value ());
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
458
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
459 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
460 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
461 file_stat fs (fname);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
462
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
463 if (fs)
2262
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
464 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
465 retval(2) = string ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
466 retval(1) = 0.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
467 retval(0) = octave_value (mk_stat_map (fs));
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
468 }
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
469 else
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
470 {
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
471 retval(2) = fs.error ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
472 retval(1) = -1.0;
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
473 retval(0) = Matrix ();
1300df4a33d6 [project @ 1996-05-23 06:49:32 by jwe]
jwe
parents: 2086
diff changeset
474 }
2075
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
475 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
476 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
477 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
478 print_usage ("stat");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
479
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
480 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
481 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
482
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
483 DEFUN (unlink, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
484 "STATUS = unlink (NAME)\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
485 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
486 Delete the file NAME\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
487 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
488 STATUS is:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
489 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
490 != 0 : if unlink failed\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
491 0 : if the file could be successfully deleted")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
492 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
493 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
494
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
495 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
496
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
497 if (nargin == 1)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
498 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
499 if (args(0).is_string ())
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
500 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
501 string name = args(0).string_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
502
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
503 retval = oct_unlink (name);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
504 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
505 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
506 error ("unlink: file name must be a string");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
507 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
508 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
509 print_usage ("unlink");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
510
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
511 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
512 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
513
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
514 DEFUN (waitpid, args, ,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
515 "STATUS = waitpid (PID, OPTIONS)\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
516 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
517 wait for process PID to terminate\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
518 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
519 PID can be:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
520 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
521 -1 : wait for any child process\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
522 0 : wait for any child process whose process group ID is equal to\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
523 that of the Octave interpreter process.\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
524 > 0 : wait for termination of the child process with ID PID.\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
525 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
526 OPTIONS is:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
527 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
528 0 : wait until signal is received or a child process exits (this\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
529 is the default if the OPTIONS argument is missing) \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
530 1 : do not hang if status is not immediately available\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
531 2 : report the status of any child processes that are\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
532 stopped, and whose status has not yet been reported\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
533 since they stopped\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
534 3 : implies both 1 and 2\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
535 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
536 STATUS is:\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
537 \n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
538 -1 : if an error occured\n\
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
539 > 0 : the process ID of the child process that exited")
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
540 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
541 double retval = -1.0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
542
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
543 #if defined (HAVE_WAITPID)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
544 int nargin = args.length ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
545
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
546 if (nargin == 1 || nargin == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
547 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
548 double pid_num = args(0).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
549
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
550 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
551 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
552 if (D_NINT (pid_num) != pid_num)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
553 error ("waitpid: PID must be an integer value");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
554 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
555 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
556 pid_t pid = (pid_t) pid_num;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
557
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
558 int options = 0;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
559
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
560 if (args.length () == 2)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
561 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
562 double options_num = args(1).double_value ();
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
563
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
564 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
565 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
566 if (D_NINT (options_num) != options_num)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
567 error ("waitpid: PID must be an integer value");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
568 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
569 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
570 options = NINT (options_num);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
571 if (options < 0 || options > 3)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
572 error ("waitpid: invalid OPTIONS value specified");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
573 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
574 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
575 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
576
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
577 if (! error_state)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
578 retval = waitpid (pid, 0, options);
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
579 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
580 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
581 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
582 else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
583 print_usage ("waitpid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
584 #else
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
585 gripe_not_supported ("waitpid");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
586 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
587
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
588 return retval;
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
589 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
590
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
591 #if !defined (O_NONBLOCK) && defined (O_NDELAY)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
592 #define O_NONBLOCK O_NDELAY
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
593 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
594
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
595 void
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
596 symbols_of_syscalls (void)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
597 {
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
598 #if defined (F_DUPFD)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
599 DEFCONST (F_DUPFD, (double) F_DUPFD, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
600 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
601 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
602
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
603 #if defined (F_GETFD)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
604 DEFCONST (F_GETFD, (double) F_GETFD, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
605 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
606 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
607
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
608 #if defined (F_GETFL)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
609 DEFCONST (F_GETFL, (double) F_GETFL, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
610 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
611 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
612
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
613 #if defined (F_SETFD)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
614 DEFCONST (F_SETFD, (double) F_SETFD, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
615 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
616 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
617
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
618 #if defined (F_SETFL)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
619 DEFCONST (F_SETFL, (double) F_SETFL, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
620 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
621 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
622
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
623 #if defined (O_APPEND)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
624 DEFCONST (O_APPEND, (double) O_APPEND, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
625 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
626 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
627
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
628 #if defined (O_CREAT)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
629 DEFCONST (O_CREAT, (double) O_CREAT, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
630 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
631 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
632
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
633 #if defined (O_EXCL)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
634 DEFCONST (O_EXCL, (double) O_EXCL, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
635 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
636 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
637
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
638 #if defined (O_NONBLOCK)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
639 DEFCONST (O_NONBLOCK, (double) O_NONBLOCK, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
640 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
641 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
642
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
643 #if defined (O_RDONLY)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
644 DEFCONST (O_RDONLY, (double) O_RDONLY, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
645 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
646 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
647
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
648 #if defined (O_RDWR)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
649 DEFCONST (O_RDWR, (double) O_RDWR, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
650 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
651 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
652
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
653 #if defined (O_TRUNC)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
654 DEFCONST (O_TRUNC, (double) O_TRUNC, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
655 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
656 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
657
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
658 #if defined (O_WRONLY)
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
659 DEFCONST (O_WRONLY, (double) O_WRONLY, 0, 0,
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
660 "");
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
661 #endif
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
662 }
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
663
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
664 /*
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
665 ;;; Local Variables: ***
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
666 ;;; mode: C++ ***
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
667 ;;; End: ***
ad74682dc97e [project @ 1996-04-23 23:59:15 by jwe]
jwe
parents:
diff changeset
668 */