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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 // Thomas Baier <baier@ci.tuwien.ac.at> added the original versions of |
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24 // the following functions: |
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25 // |
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26 // mkfifo unlink waitpid |
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27 |
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28 #ifdef HAVE_CONFIG_H |
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29 #include <config.h> |
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30 #endif |
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31 |
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32 #include <cerrno> |
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33 #include <cstdio> |
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34 #include <cstring> |
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35 |
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36 #ifdef HAVE_UNISTD_H |
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37 #ifdef HAVE_SYS_TYPES_H |
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38 #include <sys/types.h> |
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39 #endif |
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40 #include <unistd.h> |
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41 #endif |
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42 |
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43 #ifdef HAVE_FCNTL_H |
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44 #include <fcntl.h> |
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45 #endif |
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46 |
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47 #include "defun.h" |
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48 #include "error.h" |
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49 #include "file-ops.h" |
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50 #include "gripes.h" |
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51 #include "help.h" |
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52 #include "lo-utils.h" |
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53 #include "oct-map.h" |
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54 #include "oct-obj.h" |
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55 #include "oct-stdstrm.h" |
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56 #include "oct-stream.h" |
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57 #include "sysdep.h" |
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58 #include "syswait.h" |
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59 #include "utils.h" |
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60 #include "variables.h" |
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61 |
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62 static Octave_map |
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63 mk_stat_map (const file_stat& fs) |
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64 { |
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65 Octave_map m; |
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66 |
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67 m["dev"] = static_cast<double> (fs.dev ()); |
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68 m["ino"] = static_cast<double> (fs.ino ()); |
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69 m["modestr"] = fs.mode_as_string (); |
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70 m["nlink"] = static_cast<double> (fs.nlink ()); |
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71 m["uid"] = static_cast<double> (fs.uid ()); |
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72 m["gid"] = static_cast<double> (fs.gid ()); |
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73 #if defined (HAVE_ST_RDEV) |
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74 m["rdev"] = static_cast<double> (fs.rdev ()); |
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75 #endif |
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76 m["size"] = static_cast<double> (fs.size ()); |
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77 m["atime"] = static_cast<double> (fs.atime ()); |
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78 m["mtime"] = static_cast<double> (fs.mtime ()); |
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79 m["ctime"] = static_cast<double> (fs.ctime ()); |
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80 #if defined (HAVE_ST_BLKSIZE) |
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81 m["blksize"] = static_cast<double> (fs.blksize ()); |
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82 #endif |
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83 #if defined (HAVE_ST_BLOCKS) |
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84 m["blocks"] = static_cast<double> (fs.blocks ()); |
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85 #endif |
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86 |
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87 return m; |
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88 } |
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89 |
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90 DEFUN (dup2, args, , |
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91 "[FID, MSG] = dup2 (OLD, NEW)\n\ |
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92 \n\ |
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93 Duplicate a file descriptor.\n\ |
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94 \n\ |
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95 If successful, FID is greater than zero and contains the new file ID.\n\ |
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96 Otherwise, FID is negative and MSG contains a system-dependent error message.") |
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97 { |
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98 octave_value_list retval; |
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99 |
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100 retval(1) = string (); |
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101 retval(0) = -1.0; |
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102 |
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103 int nargin = args.length (); |
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104 |
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105 if (nargin == 2) |
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106 { |
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107 #if defined (HAVE_DUP2) |
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108 double d_old = args(0).double_value (); |
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109 double d_new = args(1).double_value (); |
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110 |
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111 if (! error_state) |
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112 { |
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113 if (D_NINT (d_old) == d_old && D_NINT (d_new) == d_new) |
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114 { |
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115 int i_old = NINT (d_old); |
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116 int i_new = NINT (d_new); |
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117 |
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118 // XXX FIXME XXX -- are these checks sufficient? |
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119 if (i_old >= 0 && i_new >= 0) |
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120 { |
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121 int status = dup2 (i_old, i_new); |
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122 |
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123 retval(0) = static_cast<double> (status); |
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124 |
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125 if (status < 0) |
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126 retval(1) = strerror (errno); |
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127 } |
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128 else |
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129 error ("dup2: invalid file id"); |
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130 } |
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131 else |
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132 error ("dup2: arguments must be integer values"); |
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133 } |
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134 #else |
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135 gripe_not_supported ("dup2"); |
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136 #endif |
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137 } |
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138 else |
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139 print_usage ("dup2"); |
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140 |
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141 return retval; |
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142 } |
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143 |
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144 DEFUN (exec, args, , |
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145 "[STATUS, MSG] = exec (FILE, ARGS)\n\ |
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146 \n\ |
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147 Replace current process with a new process.\n\ |
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148 \n\ |
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149 If successful, exec does not return. If exec does return, status will\n\ |
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150 be nonzero, and MSG will contain a system-dependent error message.") |
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151 { |
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152 octave_value_list retval; |
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153 |
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154 retval(1) = string (); |
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155 retval(0) = -1.0; |
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156 |
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157 int nargin = args.length (); |
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158 |
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159 if (nargin == 1 || nargin == 2) |
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160 { |
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161 #if defined (HAVE_EXECVP) |
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162 string exec_file = args(0).string_value (); |
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163 |
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164 if (! error_state) |
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165 { |
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166 char **exec_args = 0; |
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167 |
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168 if (nargin == 2) |
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169 { |
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170 charMatrix chm = args(1).all_strings (); |
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171 |
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172 if (! error_state) |
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173 { |
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174 int nr = chm.rows (); |
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175 int nc = chm.cols (); |
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176 |
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177 exec_args = new char * [nr+2]; |
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178 |
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179 // XXX FIXME XXX -- potential leak? |
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180 |
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181 exec_args[0] = strsave (exec_file.c_str ()); |
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182 exec_args[nr+1] = 0; |
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183 |
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184 for (int i = 0; i < nr; i++) |
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185 { |
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186 exec_args[i+1] = new char [nc+1]; |
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187 |
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188 for (int j = 0; j < nc; j++) |
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189 exec_args[i+1][j] = chm (i, j); |
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190 |
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191 exec_args[i+1][nc] = '\0'; |
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192 } |
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193 } |
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194 else |
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195 error ("exec: arguments must be strings"); |
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196 } |
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197 else |
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198 { |
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199 exec_args = new char * [2]; |
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200 |
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201 exec_args[0] = strsave (exec_file.c_str ()); |
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202 exec_args[1] = 0; |
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203 } |
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204 |
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205 if (! error_state) |
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206 { |
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207 int status = execvp (exec_file.c_str (), exec_args); |
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208 |
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209 retval(0) = static_cast<double> (status); |
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210 |
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211 if (status < 0) |
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212 retval(1) = strerror (errno); |
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213 } |
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214 } |
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215 else |
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216 error ("exec: first argument must be a string"); |
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217 #else |
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218 gripe_not_supported ("exec"); |
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219 #endif |
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220 } |
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221 else |
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222 print_usage ("exec"); |
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223 |
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224 return retval; |
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225 } |
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226 |
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227 DEFUN (fcntl, args, , |
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228 "[STATUS, MSG] = fcntl (FID, REQUEST, ARGUMENT)\n\ |
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229 \n\ |
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230 Control open file descriptors.\n\ |
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231 \n\ |
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232 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\ |
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233 STATUS is nonzero and MSG contains a system-dependent error message.") |
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234 { |
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235 octave_value_list retval; |
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236 |
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237 retval(1) = string (); |
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238 retval(0) = -1.0; |
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239 |
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240 int nargin = args.length (); |
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241 |
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242 if (nargin == 3) |
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243 { |
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244 #if defined (HAVE_FCNTL) |
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245 double d_fid = args(0).double_value (); |
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246 double d_req = args(1).double_value (); |
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247 double d_arg = args(2).double_value (); |
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248 |
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249 if (! error_state |
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250 && D_NINT (d_fid) == d_fid |
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251 && D_NINT (d_req) == d_req |
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252 && D_NINT (d_arg) == d_arg) |
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253 { |
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254 int fid = NINT (d_fid); |
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255 int req = NINT (d_req); |
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256 int arg = NINT (d_arg); |
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257 |
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258 // XXX FIXME XXX -- Need better checking here? |
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259 if (fid < 0) |
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260 error ("fcntl: invalid file id"); |
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261 else |
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262 { |
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263 int status = fcntl (fid, req, arg); |
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264 |
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265 retval(0) = static_cast<double> (status); |
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266 |
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267 if (status < 0) |
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268 retval(1) = strerror (errno); |
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269 } |
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270 } |
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271 else |
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272 error ("fcntl: file id must be an integer"); |
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273 #else |
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274 gripe_not_supported ("fcntl"); |
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275 #endif |
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276 } |
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277 else |
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278 print_usage ("fcntl"); |
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279 |
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280 return retval; |
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281 } |
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282 |
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283 DEFUN (fork, args, , |
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284 "[PID, MSG] = fork ()\n\ |
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285 \n\ |
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286 Create a copy of the current process.\n\ |
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287 \n\ |
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288 If successful, PID is either the process ID and you are in the parent,\n\ |
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289 or 0, and you are in the child. If PID is less than zero, an error\n\ |
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290 has occured, and MSG contains a system-dependent error message.") |
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291 { |
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292 octave_value_list retval; |
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293 |
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294 retval(1) = string (); |
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295 retval(0) = -1.0; |
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296 |
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297 int nargin = args.length (); |
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298 |
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299 if (nargin == 0) |
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300 { |
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301 #if defined (HAVE_FORK) |
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302 pid_t pid = fork (); |
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303 |
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304 retval(0) = static_cast<double> (pid); |
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305 |
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306 if (pid < 0) |
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307 retval(1) = strerror (errno); |
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308 #else |
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309 gripe_not_supported ("fork"); |
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310 #endif |
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311 } |
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312 else |
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313 print_usage ("fork"); |
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314 |
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315 return retval; |
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316 } |
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317 |
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318 DEFUN (getpgrp, args, , |
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319 "pgid = getpgrp (): return the process group id of the current process") |
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320 { |
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321 double retval = -1.0; |
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322 |
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323 int nargin = args.length (); |
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324 |
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325 if (nargin == 0) |
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326 { |
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327 #if defined (HAVE_GETPGRP) |
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328 retval = getpgrp (); |
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329 #else |
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330 gripe_not_supported ("getpgrp"); |
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331 #endif |
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332 } |
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333 else |
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334 print_usage ("getpgrp"); |
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335 |
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336 return retval; |
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337 } |
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338 |
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339 DEFUN (getpid, args, , |
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340 "pid = getpid (): return the process id of the current process") |
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341 { |
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342 double retval = -1.0; |
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343 |
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344 int nargin = args.length (); |
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345 |
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346 if (nargin == 0) |
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347 { |
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348 #if defined (HAVE_GETPID) |
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349 retval = getpid (); |
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350 #else |
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351 gripe_not_supported ("getpid"); |
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352 #endif |
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353 } |
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354 else |
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355 print_usage ("getpid"); |
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356 |
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357 return retval; |
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358 } |
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359 |
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360 DEFUN (getppid, args, , |
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361 "pid = getppid (): return the process id of the parent process") |
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362 { |
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363 double retval = -1.0; |
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364 |
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365 int nargin = args.length (); |
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366 |
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367 if (nargin == 0) |
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368 { |
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369 #if defined (HAVE_GETPPID) |
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370 retval = getppid (); |
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371 #else |
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372 gripe_not_supported ("getppid"); |
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373 #endif |
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374 } |
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375 else |
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376 print_usage ("getppid"); |
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377 |
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378 return retval; |
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379 } |
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380 |
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381 DEFUN (getegid, args, , |
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382 "gid = getegid (): return the effective group id of the current process") |
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383 { |
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384 double retval = -1.0; |
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385 |
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386 int nargin = args.length (); |
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387 |
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388 if (nargin == 0) |
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389 { |
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390 #if defined (HAVE_GETEGID) |
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391 retval = getegid (); |
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392 #else |
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393 gripe_not_supported ("getegid"); |
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394 #endif |
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395 } |
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396 else |
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397 print_usage ("getegid"); |
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398 |
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399 return retval; |
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400 } |
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401 |
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402 DEFUN (getgid, args, , |
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403 "gid = getgid (): return the real group id of the current process") |
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404 { |
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405 double retval = -1.0; |
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406 |
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407 int nargin = args.length (); |
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408 |
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409 if (nargin == 0) |
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410 { |
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411 #if defined (HAVE_GETGID) |
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412 retval = getgid (); |
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413 #else |
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414 gripe_not_supported ("getgid"); |
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415 #endif |
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416 } |
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417 else |
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418 print_usage ("getgid"); |
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419 |
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420 return retval; |
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421 } |
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422 |
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423 DEFUN (geteuid, args, , |
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424 "uid = geteuid (): return the effective user id of the current process") |
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425 { |
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426 double retval = -1.0; |
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427 |
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428 int nargin = args.length (); |
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429 |
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430 if (nargin == 0) |
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431 { |
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432 #if defined (HAVE_GETEUID) |
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433 retval = geteuid (); |
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434 #else |
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435 gripe_not_supported ("geteuid"); |
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436 #endif |
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437 } |
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438 else |
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439 print_usage ("geteuid"); |
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440 |
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441 return retval; |
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442 } |
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443 |
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444 DEFUN (getuid, args, , |
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445 "uid = getuid (): return the real user id of the current process") |
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446 { |
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447 double retval = -1.0; |
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448 |
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449 int nargin = args.length (); |
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450 |
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451 if (nargin == 0) |
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452 { |
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453 #if defined (HAVE_GETUID) |
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454 retval = getuid (); |
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455 #else |
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456 gripe_not_supported ("getuid"); |
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457 #endif |
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458 } |
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459 else |
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460 print_usage ("getuid"); |
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461 |
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462 return retval; |
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463 } |
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464 |
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465 DEFUN (lstat, args, , |
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466 "[S, ERR, MSG] = lstat (NAME)\n\ |
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467 \n\ |
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468 Like [S, ERR, MSG] = stat (NAME), but if NAME refers to a symbolic\n\ |
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469 link, returns information about the link itself, not the file that it\n\ |
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470 points to.") |
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471 { |
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2263
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472 octave_value_list retval; |
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473 |
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474 if (args.length () == 1) |
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475 { |
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476 string fname = oct_tilde_expand (args(0).string_value ()); |
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477 |
|
|
478 if (! error_state) |
|
|
479 { |
|
|
480 file_stat fs (fname, false); |
|
|
481 |
|
2263
|
482 if (fs) |
|
2262
|
483 { |
|
|
484 retval(2) = string (); |
|
|
485 retval(1) = 0.0; |
|
|
486 retval(0) = octave_value (mk_stat_map (fs)); |
|
|
487 } |
|
|
488 else |
|
|
489 { |
|
|
490 retval(2) = fs.error (); |
|
|
491 retval(1) = -1.0; |
|
|
492 retval(0) = Matrix (); |
|
|
493 } |
|
2075
|
494 } |
|
|
495 } |
|
|
496 else |
|
|
497 print_usage ("lstat"); |
|
|
498 |
|
|
499 return retval; |
|
|
500 } |
|
|
501 |
|
|
502 DEFUN (mkfifo, args, , |
|
2669
|
503 "[STATUS, MSG] = mkfifo (NAME, MODE)\n\ |
|
2075
|
504 \n\ |
|
2669
|
505 Create a FIFO special file named NAME with file mode MODE\n\ |
|
2075
|
506 \n\ |
|
2669
|
507 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\ |
|
|
508 STATUS is nonzero and MSG contains a system-dependent error message.") |
|
2075
|
509 { |
|
2669
|
510 octave_value_list retval; |
|
|
511 |
|
|
512 retval(1) = string (); |
|
|
513 retval(0) = -1.0; |
|
2075
|
514 |
|
|
515 int nargin = args.length (); |
|
|
516 |
|
|
517 if (nargin == 2) |
|
|
518 { |
|
|
519 if (args(0).is_string ()) |
|
|
520 { |
|
|
521 string name = args(0).string_value (); |
|
|
522 |
|
|
523 if (args(1).is_scalar_type ()) |
|
|
524 { |
|
2800
|
525 long mode = static_cast<long> (args(1).double_value ()); |
|
2075
|
526 |
|
2669
|
527 string msg; |
|
|
528 |
|
|
529 int status = oct_mkfifo (name, mode, msg); |
|
|
530 |
|
2800
|
531 retval(0) = static_cast<double> (status); |
|
2669
|
532 |
|
|
533 if (status < 0) |
|
|
534 retval(1) = msg; |
|
2075
|
535 } |
|
|
536 else |
|
|
537 error ("mkfifo: MODE must be an integer"); |
|
|
538 } |
|
|
539 else |
|
|
540 error ("mkfifo: file name must be a string"); |
|
|
541 |
|
|
542 } |
|
|
543 else |
|
|
544 print_usage ("mkfifo"); |
|
|
545 |
|
|
546 return retval; |
|
|
547 } |
|
|
548 |
|
|
549 DEFUN (pipe, args, , |
|
2902
|
550 "[FILE_LIST, STATUS, MSG] = pipe (): create an interprocess channel.\n\ |
|
2669
|
551 \n\ |
|
2902
|
552 Return the file objects corresponding to the reading and writing ends of\n\ |
|
|
553 the pipe, as a two-element list.\n\ |
|
2669
|
554 \n\ |
|
|
555 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\ |
|
|
556 STATUS is nonzero and MSG contains a system-dependent error message.") |
|
2075
|
557 { |
|
2669
|
558 octave_value_list retval; |
|
|
559 |
|
|
560 retval(2) = string (); |
|
|
561 retval(1) = -1.0; |
|
|
562 retval(0) = Matrix (); |
|
2075
|
563 |
|
|
564 int nargin = args.length (); |
|
|
565 |
|
|
566 if (nargin == 0) |
|
|
567 { |
|
2475
|
568 #if defined (HAVE_PIPE) |
|
2075
|
569 int fid[2]; |
|
|
570 |
|
2669
|
571 int status = pipe (fid); |
|
|
572 |
|
|
573 if (status < 0) |
|
|
574 { |
|
|
575 retval(2) = strerror (errno); |
|
|
576 } |
|
|
577 else |
|
2075
|
578 { |
|
|
579 FILE *in_file = fdopen (fid[0], "r"); |
|
|
580 FILE *out_file = fdopen (fid[1], "w"); |
|
|
581 |
|
|
582 octave_istdiostream *is |
|
|
583 = new octave_istdiostream (string (), in_file); |
|
|
584 |
|
|
585 octave_ostdiostream *os |
|
|
586 = new octave_ostdiostream (string (), out_file); |
|
|
587 |
|
2902
|
588 octave_value_list file_ids; |
|
2075
|
589 |
|
2902
|
590 file_ids(1) = octave_stream_list::insert (os); |
|
|
591 file_ids(0) = octave_stream_list::insert (is); |
|
2075
|
592 |
|
2800
|
593 retval(1) = static_cast<double> (status); |
|
2902
|
594 retval(0) = octave_value (file_ids); |
|
2669
|
595 } |
|
2475
|
596 #else |
|
|
597 gripe_not_supported ("pipe"); |
|
|
598 #endif |
|
2075
|
599 } |
|
|
600 else |
|
|
601 print_usage ("pipe"); |
|
|
602 |
|
|
603 return retval; |
|
|
604 } |
|
|
605 |
|
|
606 DEFUN (stat, args, , |
|
2262
|
607 "[S, ERR, MSG] = stat (NAME)\n\ |
|
2075
|
608 \n\ |
|
2802
|
609 Given the name of a file, return a structure S with the following\n\ |
|
2075
|
610 elements:\n\ |
|
|
611 \n\ |
|
|
612 dev : id of device containing a directory entry for this file\n\ |
|
|
613 ino : file number of the file\n\ |
|
|
614 modestr : file mode, as a string of ten letters or dashes as in ls -l\n\ |
|
|
615 nlink : number of links\n\ |
|
|
616 uid : user id of file's owner\n\ |
|
|
617 gid : group id of file's group \n\ |
|
|
618 rdev : id of device for block or character special files\n\ |
|
|
619 size : size in bytes\n\ |
|
|
620 atime : time of last access\n\ |
|
|
621 mtime : time of last modification\n\ |
|
|
622 ctime : time of last file status change\n\ |
|
|
623 blksize : size of blocks in the file\n\ |
|
|
624 blocks : number of blocks allocated for file\n\ |
|
|
625 \n\ |
|
2262
|
626 If the call is successful, ERR is 0 and MSG is an empty string.\n\ |
|
|
627 \n\ |
|
|
628 If the file does not exist, or some other error occurs, S is an\n\ |
|
|
629 empty matrix, ERR is -1, and MSG contains the corresponding\n\ |
|
|
630 system error message.") |
|
2075
|
631 { |
|
2262
|
632 octave_value_list retval; |
|
2075
|
633 |
|
|
634 if (args.length () == 1) |
|
|
635 { |
|
|
636 string fname = oct_tilde_expand (args(0).string_value ()); |
|
|
637 |
|
|
638 if (! error_state) |
|
|
639 { |
|
|
640 file_stat fs (fname); |
|
|
641 |
|
|
642 if (fs) |
|
2262
|
643 { |
|
|
644 retval(2) = string (); |
|
|
645 retval(1) = 0.0; |
|
|
646 retval(0) = octave_value (mk_stat_map (fs)); |
|
|
647 } |
|
|
648 else |
|
|
649 { |
|
|
650 retval(2) = fs.error (); |
|
|
651 retval(1) = -1.0; |
|
|
652 retval(0) = Matrix (); |
|
|
653 } |
|
2075
|
654 } |
|
|
655 } |
|
|
656 else |
|
|
657 print_usage ("stat"); |
|
|
658 |
|
|
659 return retval; |
|
|
660 } |
|
|
661 |
|
|
662 DEFUN (unlink, args, , |
|
2669
|
663 "[STATUS, MSG] = unlink (NAME)\n\ |
|
2075
|
664 \n\ |
|
2669
|
665 Delete the file NAME\n\ |
|
2075
|
666 \n\ |
|
2669
|
667 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\ |
|
|
668 STATUS is nonzero and MSG contains a system-dependent error message.") |
|
2075
|
669 { |
|
2669
|
670 octave_value_list retval; |
|
|
671 |
|
|
672 retval(1) = string (); |
|
|
673 retval(0) = -1.0; |
|
2075
|
674 |
|
|
675 int nargin = args.length (); |
|
|
676 |
|
|
677 if (nargin == 1) |
|
|
678 { |
|
|
679 if (args(0).is_string ()) |
|
|
680 { |
|
|
681 string name = args(0).string_value (); |
|
|
682 |
|
2669
|
683 string msg; |
|
|
684 |
|
|
685 int status = oct_unlink (name, msg); |
|
|
686 |
|
2800
|
687 retval(0) = static_cast<double> (status); |
|
2669
|
688 |
|
|
689 if (status < 0) |
|
|
690 retval(1) = msg; |
|
2075
|
691 } |
|
|
692 else |
|
|
693 error ("unlink: file name must be a string"); |
|
|
694 } |
|
|
695 else |
|
|
696 print_usage ("unlink"); |
|
|
697 |
|
|
698 return retval; |
|
|
699 } |
|
|
700 |
|
|
701 DEFUN (waitpid, args, , |
|
2669
|
702 "[PID, MSG] = waitpid (PID, OPTIONS)\n\ |
|
2075
|
703 \n\ |
|
2669
|
704 Wait for process PID to terminate\n\ |
|
2075
|
705 \n\ |
|
|
706 PID can be:\n\ |
|
|
707 \n\ |
|
|
708 -1 : wait for any child process\n\ |
|
|
709 0 : wait for any child process whose process group ID is equal to\n\ |
|
|
710 that of the Octave interpreter process.\n\ |
|
|
711 > 0 : wait for termination of the child process with ID PID.\n\ |
|
|
712 \n\ |
|
|
713 OPTIONS is:\n\ |
|
|
714 \n\ |
|
|
715 0 : wait until signal is received or a child process exits (this\n\ |
|
|
716 is the default if the OPTIONS argument is missing) \n\ |
|
|
717 1 : do not hang if status is not immediately available\n\ |
|
|
718 2 : report the status of any child processes that are\n\ |
|
|
719 stopped, and whose status has not yet been reported\n\ |
|
|
720 since they stopped\n\ |
|
|
721 3 : implies both 1 and 2\n\ |
|
|
722 \n\ |
|
2669
|
723 If successful, PID is greater than 0 and contains the process ID of\n\ |
|
|
724 the child process that exited and MSG is an empty string.\n\ |
|
|
725 Otherwise, PID is less than zero and MSG contains a system-dependent\n\ |
|
|
726 error message.") |
|
2075
|
727 { |
|
2669
|
728 octave_value_list retval; |
|
|
729 |
|
|
730 retval(1) = string (); |
|
|
731 retval(0) = -1.0; |
|
2075
|
732 |
|
|
733 int nargin = args.length (); |
|
|
734 |
|
|
735 if (nargin == 1 || nargin == 2) |
|
|
736 { |
|
2475
|
737 #if defined (HAVE_WAITPID) |
|
2075
|
738 double pid_num = args(0).double_value (); |
|
|
739 |
|
|
740 if (! error_state) |
|
|
741 { |
|
|
742 if (D_NINT (pid_num) != pid_num) |
|
|
743 error ("waitpid: PID must be an integer value"); |
|
|
744 else |
|
|
745 { |
|
|
746 pid_t pid = (pid_t) pid_num; |
|
|
747 |
|
|
748 int options = 0; |
|
|
749 |
|
|
750 if (args.length () == 2) |
|
|
751 { |
|
|
752 double options_num = args(1).double_value (); |
|
|
753 |
|
|
754 if (! error_state) |
|
|
755 { |
|
|
756 if (D_NINT (options_num) != options_num) |
|
|
757 error ("waitpid: PID must be an integer value"); |
|
|
758 else |
|
|
759 { |
|
|
760 options = NINT (options_num); |
|
|
761 if (options < 0 || options > 3) |
|
|
762 error ("waitpid: invalid OPTIONS value specified"); |
|
|
763 } |
|
|
764 } |
|
|
765 } |
|
|
766 |
|
|
767 if (! error_state) |
|
2669
|
768 { |
|
|
769 pid_t status = waitpid (pid, 0, options); |
|
|
770 |
|
2800
|
771 retval(0) = static_cast<double> (status); |
|
2669
|
772 |
|
|
773 if (status < 0) |
|
|
774 retval(1) = strerror (errno); |
|
|
775 } |
|
2075
|
776 } |
|
|
777 } |
|
2475
|
778 #else |
|
|
779 gripe_not_supported ("waitpid"); |
|
|
780 #endif |
|
2075
|
781 } |
|
|
782 else |
|
|
783 print_usage ("waitpid"); |
|
|
784 |
|
|
785 return retval; |
|
|
786 } |
|
|
787 |
|
|
788 #if !defined (O_NONBLOCK) && defined (O_NDELAY) |
|
|
789 #define O_NONBLOCK O_NDELAY |
|
|
790 #endif |
|
|
791 |
|
|
792 void |
|
|
793 symbols_of_syscalls (void) |
|
|
794 { |
|
|
795 #if defined (F_DUPFD) |
|
2800
|
796 DEFCONST (F_DUPFD, static_cast<double> (F_DUPFD), 0, 0, |
|
2075
|
797 ""); |
|
|
798 #endif |
|
|
799 |
|
|
800 #if defined (F_GETFD) |
|
2800
|
801 DEFCONST (F_GETFD, static_cast<double> (F_GETFD), 0, 0, |
|
2075
|
802 ""); |
|
|
803 #endif |
|
|
804 |
|
|
805 #if defined (F_GETFL) |
|
2800
|
806 DEFCONST (F_GETFL, static_cast<double> (F_GETFL), 0, 0, |
|
2075
|
807 ""); |
|
|
808 #endif |
|
|
809 |
|
|
810 #if defined (F_SETFD) |
|
2800
|
811 DEFCONST (F_SETFD, static_cast<double> (F_SETFD), 0, 0, |
|
2075
|
812 ""); |
|
|
813 #endif |
|
|
814 |
|
|
815 #if defined (F_SETFL) |
|
2800
|
816 DEFCONST (F_SETFL, static_cast<double> (F_SETFL), 0, 0, |
|
2075
|
817 ""); |
|
|
818 #endif |
|
|
819 |
|
|
820 #if defined (O_APPEND) |
|
2800
|
821 DEFCONST (O_APPEND, static_cast<double> (O_APPEND), 0, 0, |
|
2075
|
822 ""); |
|
|
823 #endif |
|
|
824 |
|
2669
|
825 #if defined (O_ASYNC) |
|
2800
|
826 DEFCONST (O_ASYNC, static_cast<double> (O_ASYNC), 0, 0, |
|
2669
|
827 ""); |
|
|
828 #endif |
|
|
829 |
|
2075
|
830 #if defined (O_CREAT) |
|
2800
|
831 DEFCONST (O_CREAT, static_cast<double> (O_CREAT), 0, 0, |
|
2075
|
832 ""); |
|
|
833 #endif |
|
|
834 |
|
|
835 #if defined (O_EXCL) |
|
2800
|
836 DEFCONST (O_EXCL, static_cast<double> (O_EXCL), 0, 0, |
|
2075
|
837 ""); |
|
|
838 #endif |
|
|
839 |
|
|
840 #if defined (O_NONBLOCK) |
|
2800
|
841 DEFCONST (O_NONBLOCK, static_cast<double> (O_NONBLOCK), 0, 0, |
|
2075
|
842 ""); |
|
|
843 #endif |
|
|
844 |
|
|
845 #if defined (O_RDONLY) |
|
2800
|
846 DEFCONST (O_RDONLY, static_cast<double> (O_RDONLY), 0, 0, |
|
2075
|
847 ""); |
|
|
848 #endif |
|
|
849 |
|
|
850 #if defined (O_RDWR) |
|
2800
|
851 DEFCONST (O_RDWR, static_cast<double> (O_RDWR), 0, 0, |
|
2075
|
852 ""); |
|
|
853 #endif |
|
|
854 |
|
2669
|
855 #if defined (O_SYNC) |
|
2800
|
856 DEFCONST (O_SYNC, static_cast<double> (O_SYNC), 0, 0, |
|
2669
|
857 ""); |
|
|
858 #endif |
|
|
859 |
|
2075
|
860 #if defined (O_TRUNC) |
|
2800
|
861 DEFCONST (O_TRUNC, static_cast<double> (O_TRUNC), 0, 0, |
|
2075
|
862 ""); |
|
|
863 #endif |
|
|
864 |
|
|
865 #if defined (O_WRONLY) |
|
2800
|
866 DEFCONST (O_WRONLY, static_cast<double> (O_WRONLY), 0, 0, |
|
2075
|
867 ""); |
|
|
868 #endif |
|
|
869 } |
|
|
870 |
|
|
871 /* |
|
|
872 ;;; Local Variables: *** |
|
|
873 ;;; mode: C++ *** |
|
|
874 ;;; End: *** |
|
|
875 */ |
