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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 "file-ops.h" |
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48 #include "file-stat.h" |
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49 |
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50 #include "defun.h" |
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51 #include "error.h" |
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52 #include "gripes.h" |
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53 #include "help.h" |
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54 #include "lo-utils.h" |
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55 #include "oct-map.h" |
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56 #include "oct-obj.h" |
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57 #include "oct-stdstrm.h" |
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58 #include "oct-stream.h" |
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59 #include "sysdep.h" |
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60 #include "syswait.h" |
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61 #include "utils.h" |
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62 #include "variables.h" |
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63 |
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64 static Octave_map |
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65 mk_stat_map (const file_stat& fs) |
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66 { |
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67 Octave_map m; |
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68 |
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69 m["dev"] = static_cast<double> (fs.dev ()); |
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70 m["ino"] = static_cast<double> (fs.ino ()); |
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71 m["modestr"] = fs.mode_as_string (); |
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72 m["nlink"] = static_cast<double> (fs.nlink ()); |
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73 m["uid"] = static_cast<double> (fs.uid ()); |
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74 m["gid"] = static_cast<double> (fs.gid ()); |
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75 #if defined (HAVE_ST_RDEV) |
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76 m["rdev"] = static_cast<double> (fs.rdev ()); |
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77 #endif |
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78 m["size"] = static_cast<double> (fs.size ()); |
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79 m["atime"] = static_cast<double> (fs.atime ()); |
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80 m["mtime"] = static_cast<double> (fs.mtime ()); |
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81 m["ctime"] = static_cast<double> (fs.ctime ()); |
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82 #if defined (HAVE_ST_BLKSIZE) |
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83 m["blksize"] = static_cast<double> (fs.blksize ()); |
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84 #endif |
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85 #if defined (HAVE_ST_BLOCKS) |
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86 m["blocks"] = static_cast<double> (fs.blocks ()); |
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87 #endif |
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88 |
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89 return m; |
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90 } |
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91 |
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92 DEFUN (dup2, args, , |
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93 "[FID, MSG] = dup2 (OLD, NEW)\n\ |
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94 \n\ |
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95 Duplicate a file descriptor.\n\ |
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96 \n\ |
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97 If successful, FID is greater than zero and contains the new file ID.\n\ |
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98 Otherwise, FID is negative and MSG contains a system-dependent error message.") |
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99 { |
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100 octave_value_list retval; |
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101 |
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102 retval(1) = string (); |
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103 retval(0) = -1.0; |
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104 |
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105 int nargin = args.length (); |
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106 |
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107 if (nargin == 2) |
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108 { |
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109 #if defined (HAVE_DUP2) |
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110 double d_old = args(0).double_value (); |
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111 double d_new = args(1).double_value (); |
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112 |
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113 if (! error_state) |
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114 { |
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115 if (D_NINT (d_old) == d_old && D_NINT (d_new) == d_new) |
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116 { |
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117 int i_old = NINT (d_old); |
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118 int i_new = NINT (d_new); |
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119 |
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120 // XXX FIXME XXX -- are these checks sufficient? |
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121 if (i_old >= 0 && i_new >= 0) |
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122 { |
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123 int status = dup2 (i_old, i_new); |
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124 |
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125 retval(0) = static_cast<double> (status); |
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126 |
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127 if (status < 0) |
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128 retval(1) = strerror (errno); |
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129 } |
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130 else |
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131 error ("dup2: invalid file id"); |
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132 } |
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133 else |
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134 error ("dup2: arguments must be integer values"); |
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135 } |
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136 #else |
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137 gripe_not_supported ("dup2"); |
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138 #endif |
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139 } |
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140 else |
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141 print_usage ("dup2"); |
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142 |
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143 return retval; |
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144 } |
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145 |
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146 DEFUN (exec, args, , |
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147 "[STATUS, MSG] = exec (FILE, ARGS)\n\ |
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148 \n\ |
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149 Replace current process with a new process.\n\ |
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150 \n\ |
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151 If successful, exec does not return. If exec does return, status will\n\ |
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152 be nonzero, and MSG will contain a system-dependent error message.") |
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153 { |
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154 octave_value_list retval; |
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155 |
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156 retval(1) = string (); |
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157 retval(0) = -1.0; |
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158 |
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159 int nargin = args.length (); |
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160 |
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161 if (nargin == 1 || nargin == 2) |
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162 { |
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163 #if defined (HAVE_EXECVP) |
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164 string exec_file = args(0).string_value (); |
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165 |
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166 if (! error_state) |
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167 { |
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168 char **exec_args = 0; |
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169 |
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170 if (nargin == 2) |
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171 { |
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172 charMatrix chm = args(1).all_strings (); |
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173 |
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174 if (! error_state) |
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175 { |
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176 int nr = chm.rows (); |
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177 int nc = chm.cols (); |
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178 |
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179 exec_args = new char * [nr+2]; |
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180 |
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181 // XXX FIXME XXX -- potential leak? |
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182 |
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183 exec_args[0] = strsave (exec_file.c_str ()); |
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184 exec_args[nr+1] = 0; |
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185 |
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186 for (int i = 0; i < nr; i++) |
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187 { |
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188 exec_args[i+1] = new char [nc+1]; |
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189 |
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190 for (int j = 0; j < nc; j++) |
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191 exec_args[i+1][j] = chm (i, j); |
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192 |
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193 exec_args[i+1][nc] = '\0'; |
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194 } |
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195 } |
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196 else |
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197 error ("exec: arguments must be strings"); |
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198 } |
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199 else |
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200 { |
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201 exec_args = new char * [2]; |
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202 |
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203 exec_args[0] = strsave (exec_file.c_str ()); |
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204 exec_args[1] = 0; |
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205 } |
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206 |
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207 if (! error_state) |
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208 { |
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209 int status = execvp (exec_file.c_str (), exec_args); |
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210 |
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211 retval(0) = static_cast<double> (status); |
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212 |
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213 if (status < 0) |
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214 retval(1) = strerror (errno); |
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215 } |
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216 } |
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217 else |
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218 error ("exec: first argument must be a string"); |
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219 #else |
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220 gripe_not_supported ("exec"); |
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221 #endif |
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222 } |
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223 else |
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224 print_usage ("exec"); |
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225 |
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226 return retval; |
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227 } |
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228 |
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229 DEFUN (fcntl, args, , |
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230 "[STATUS, MSG] = fcntl (FID, REQUEST, ARGUMENT)\n\ |
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231 \n\ |
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232 Control open file descriptors.\n\ |
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233 \n\ |
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234 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\ |
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235 STATUS is nonzero and MSG contains a system-dependent error message.") |
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236 { |
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237 octave_value_list retval; |
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238 |
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239 retval(1) = string (); |
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240 retval(0) = -1.0; |
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241 |
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242 int nargin = args.length (); |
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243 |
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244 if (nargin == 3) |
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245 { |
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246 #if defined (HAVE_FCNTL) |
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247 double d_fid = args(0).double_value (); |
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248 double d_req = args(1).double_value (); |
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249 double d_arg = args(2).double_value (); |
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250 |
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251 if (! error_state |
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252 && D_NINT (d_fid) == d_fid |
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253 && D_NINT (d_req) == d_req |
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254 && D_NINT (d_arg) == d_arg) |
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255 { |
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256 int fid = NINT (d_fid); |
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257 int req = NINT (d_req); |
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258 int arg = NINT (d_arg); |
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259 |
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260 // XXX FIXME XXX -- Need better checking here? |
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261 if (fid < 0) |
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262 error ("fcntl: invalid file id"); |
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263 else |
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264 { |
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265 int status = fcntl (fid, req, arg); |
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266 |
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267 retval(0) = static_cast<double> (status); |
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268 |
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269 if (status < 0) |
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270 retval(1) = strerror (errno); |
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271 } |
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272 } |
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273 else |
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274 error ("fcntl: file id must be an integer"); |
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275 #else |
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276 gripe_not_supported ("fcntl"); |
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277 #endif |
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278 } |
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279 else |
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280 print_usage ("fcntl"); |
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281 |
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282 return retval; |
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283 } |
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284 |
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285 DEFUN (fork, args, , |
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286 "[PID, MSG] = fork ()\n\ |
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287 \n\ |
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288 Create a copy of the current process.\n\ |
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289 \n\ |
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290 If successful, PID is either the process ID and you are in the parent,\n\ |
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291 or 0, and you are in the child. If PID is less than zero, an error\n\ |
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292 has occured, and MSG contains a system-dependent error message.") |
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293 { |
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294 octave_value_list retval; |
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295 |
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296 retval(1) = string (); |
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297 retval(0) = -1.0; |
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298 |
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299 int nargin = args.length (); |
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300 |
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301 if (nargin == 0) |
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302 { |
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303 #if defined (HAVE_FORK) |
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304 pid_t pid = fork (); |
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305 |
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306 retval(0) = static_cast<double> (pid); |
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307 |
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308 if (pid < 0) |
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309 retval(1) = strerror (errno); |
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310 #else |
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311 gripe_not_supported ("fork"); |
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312 #endif |
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313 } |
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314 else |
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315 print_usage ("fork"); |
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316 |
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317 return retval; |
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318 } |
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319 |
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320 DEFUN (getpgrp, args, , |
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321 "pgid = getpgrp (): return the process group id of the current process") |
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322 { |
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323 double retval = -1.0; |
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324 |
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325 int nargin = args.length (); |
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326 |
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327 if (nargin == 0) |
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328 { |
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329 #if defined (HAVE_GETPGRP) |
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330 retval = getpgrp (); |
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331 #else |
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332 gripe_not_supported ("getpgrp"); |
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333 #endif |
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334 } |
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335 else |
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336 print_usage ("getpgrp"); |
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337 |
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338 return retval; |
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339 } |
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340 |
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341 DEFUN (getpid, args, , |
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342 "pid = getpid (): return the process id of the current process") |
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343 { |
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344 double retval = -1.0; |
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345 |
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346 int nargin = args.length (); |
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347 |
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348 if (nargin == 0) |
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349 { |
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350 #if defined (HAVE_GETPID) |
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351 retval = getpid (); |
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352 #else |
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353 gripe_not_supported ("getpid"); |
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354 #endif |
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355 } |
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356 else |
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357 print_usage ("getpid"); |
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358 |
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359 return retval; |
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360 } |
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361 |
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362 DEFUN (getppid, args, , |
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363 "pid = getppid (): return the process id of the parent process") |
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364 { |
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365 double retval = -1.0; |
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366 |
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367 int nargin = args.length (); |
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368 |
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369 if (nargin == 0) |
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370 { |
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371 #if defined (HAVE_GETPPID) |
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372 retval = getppid (); |
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373 #else |
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374 gripe_not_supported ("getppid"); |
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375 #endif |
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376 } |
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377 else |
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378 print_usage ("getppid"); |
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379 |
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380 return retval; |
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381 } |
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382 |
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383 DEFUN (getegid, args, , |
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384 "gid = getegid (): return the effective group id of the current process") |
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385 { |
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386 double retval = -1.0; |
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387 |
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388 int nargin = args.length (); |
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389 |
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390 if (nargin == 0) |
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391 { |
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392 #if defined (HAVE_GETEGID) |
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393 retval = getegid (); |
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394 #else |
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395 gripe_not_supported ("getegid"); |
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396 #endif |
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397 } |
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398 else |
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399 print_usage ("getegid"); |
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400 |
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401 return retval; |
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402 } |
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403 |
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404 DEFUN (getgid, args, , |
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405 "gid = getgid (): return the real group id of the current process") |
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406 { |
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407 double retval = -1.0; |
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408 |
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409 int nargin = args.length (); |
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410 |
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411 if (nargin == 0) |
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412 { |
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413 #if defined (HAVE_GETGID) |
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414 retval = getgid (); |
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415 #else |
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416 gripe_not_supported ("getgid"); |
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417 #endif |
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418 } |
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419 else |
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420 print_usage ("getgid"); |
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421 |
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422 return retval; |
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423 } |
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424 |
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425 DEFUN (geteuid, args, , |
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426 "uid = geteuid (): return the effective user id of the current process") |
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427 { |
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428 double retval = -1.0; |
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429 |
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430 int nargin = args.length (); |
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431 |
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432 if (nargin == 0) |
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433 { |
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434 #if defined (HAVE_GETEUID) |
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435 retval = geteuid (); |
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436 #else |
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437 gripe_not_supported ("geteuid"); |
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438 #endif |
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439 } |
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440 else |
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441 print_usage ("geteuid"); |
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442 |
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443 return retval; |
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444 } |
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445 |
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446 DEFUN (getuid, args, , |
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447 "uid = getuid (): return the real user id of the current process") |
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448 { |
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449 double retval = -1.0; |
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450 |
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451 int nargin = args.length (); |
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452 |
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453 if (nargin == 0) |
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454 { |
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455 #if defined (HAVE_GETUID) |
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456 retval = getuid (); |
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457 #else |
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458 gripe_not_supported ("getuid"); |
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459 #endif |
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460 } |
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461 else |
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462 print_usage ("getuid"); |
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463 |
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464 return retval; |
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465 } |
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466 |
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2075
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467 DEFUN (lstat, args, , |
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2262
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468 "[S, ERR, MSG] = lstat (NAME)\n\ |
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469 \n\ |
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2262
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470 Like [S, ERR, MSG] = stat (NAME), but if NAME refers to a symbolic\n\ |
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471 link, returns information about the link itself, not the file that it\n\ |
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472 points to.") |
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2075
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473 { |
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2263
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474 octave_value_list retval; |
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2075
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475 |
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476 if (args.length () == 1) |
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477 { |
|
2926
|
478 string fname = file_ops::tilde_expand (args(0).string_value ()); |
|
2075
|
479 |
|
|
480 if (! error_state) |
|
|
481 { |
|
|
482 file_stat fs (fname, false); |
|
|
483 |
|
2263
|
484 if (fs) |
|
2262
|
485 { |
|
|
486 retval(2) = string (); |
|
|
487 retval(1) = 0.0; |
|
|
488 retval(0) = octave_value (mk_stat_map (fs)); |
|
|
489 } |
|
|
490 else |
|
|
491 { |
|
|
492 retval(2) = fs.error (); |
|
|
493 retval(1) = -1.0; |
|
|
494 retval(0) = Matrix (); |
|
|
495 } |
|
2075
|
496 } |
|
|
497 } |
|
|
498 else |
|
|
499 print_usage ("lstat"); |
|
|
500 |
|
|
501 return retval; |
|
|
502 } |
|
|
503 |
|
|
504 DEFUN (mkfifo, args, , |
|
2669
|
505 "[STATUS, MSG] = mkfifo (NAME, MODE)\n\ |
|
2075
|
506 \n\ |
|
2669
|
507 Create a FIFO special file named NAME with file mode MODE\n\ |
|
2075
|
508 \n\ |
|
2669
|
509 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\ |
|
|
510 STATUS is nonzero and MSG contains a system-dependent error message.") |
|
2075
|
511 { |
|
2669
|
512 octave_value_list retval; |
|
|
513 |
|
|
514 retval(1) = string (); |
|
|
515 retval(0) = -1.0; |
|
2075
|
516 |
|
|
517 int nargin = args.length (); |
|
|
518 |
|
|
519 if (nargin == 2) |
|
|
520 { |
|
|
521 if (args(0).is_string ()) |
|
|
522 { |
|
|
523 string name = args(0).string_value (); |
|
|
524 |
|
|
525 if (args(1).is_scalar_type ()) |
|
|
526 { |
|
2800
|
527 long mode = static_cast<long> (args(1).double_value ()); |
|
2075
|
528 |
|
2669
|
529 string msg; |
|
|
530 |
|
2926
|
531 int status = file_ops::mkfifo (name, mode, msg); |
|
2669
|
532 |
|
2800
|
533 retval(0) = static_cast<double> (status); |
|
2669
|
534 |
|
|
535 if (status < 0) |
|
|
536 retval(1) = msg; |
|
2075
|
537 } |
|
|
538 else |
|
|
539 error ("mkfifo: MODE must be an integer"); |
|
|
540 } |
|
|
541 else |
|
|
542 error ("mkfifo: file name must be a string"); |
|
|
543 |
|
|
544 } |
|
|
545 else |
|
|
546 print_usage ("mkfifo"); |
|
|
547 |
|
|
548 return retval; |
|
|
549 } |
|
|
550 |
|
|
551 DEFUN (pipe, args, , |
|
2902
|
552 "[FILE_LIST, STATUS, MSG] = pipe (): create an interprocess channel.\n\ |
|
2669
|
553 \n\ |
|
2902
|
554 Return the file objects corresponding to the reading and writing ends of\n\ |
|
|
555 the pipe, as a two-element list.\n\ |
|
2669
|
556 \n\ |
|
|
557 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\ |
|
|
558 STATUS is nonzero and MSG contains a system-dependent error message.") |
|
2075
|
559 { |
|
2669
|
560 octave_value_list retval; |
|
|
561 |
|
|
562 retval(2) = string (); |
|
|
563 retval(1) = -1.0; |
|
|
564 retval(0) = Matrix (); |
|
2075
|
565 |
|
|
566 int nargin = args.length (); |
|
|
567 |
|
|
568 if (nargin == 0) |
|
|
569 { |
|
2475
|
570 #if defined (HAVE_PIPE) |
|
2075
|
571 int fid[2]; |
|
|
572 |
|
2669
|
573 int status = pipe (fid); |
|
|
574 |
|
|
575 if (status < 0) |
|
|
576 { |
|
|
577 retval(2) = strerror (errno); |
|
|
578 } |
|
|
579 else |
|
2075
|
580 { |
|
|
581 FILE *in_file = fdopen (fid[0], "r"); |
|
|
582 FILE *out_file = fdopen (fid[1], "w"); |
|
|
583 |
|
|
584 octave_istdiostream *is |
|
|
585 = new octave_istdiostream (string (), in_file); |
|
|
586 |
|
|
587 octave_ostdiostream *os |
|
|
588 = new octave_ostdiostream (string (), out_file); |
|
|
589 |
|
2902
|
590 octave_value_list file_ids; |
|
2075
|
591 |
|
2902
|
592 file_ids(1) = octave_stream_list::insert (os); |
|
|
593 file_ids(0) = octave_stream_list::insert (is); |
|
2075
|
594 |
|
2800
|
595 retval(1) = static_cast<double> (status); |
|
2902
|
596 retval(0) = octave_value (file_ids); |
|
2669
|
597 } |
|
2475
|
598 #else |
|
|
599 gripe_not_supported ("pipe"); |
|
|
600 #endif |
|
2075
|
601 } |
|
|
602 else |
|
|
603 print_usage ("pipe"); |
|
|
604 |
|
|
605 return retval; |
|
|
606 } |
|
|
607 |
|
|
608 DEFUN (stat, args, , |
|
2262
|
609 "[S, ERR, MSG] = stat (NAME)\n\ |
|
2075
|
610 \n\ |
|
2802
|
611 Given the name of a file, return a structure S with the following\n\ |
|
2075
|
612 elements:\n\ |
|
|
613 \n\ |
|
|
614 dev : id of device containing a directory entry for this file\n\ |
|
|
615 ino : file number of the file\n\ |
|
|
616 modestr : file mode, as a string of ten letters or dashes as in ls -l\n\ |
|
|
617 nlink : number of links\n\ |
|
|
618 uid : user id of file's owner\n\ |
|
|
619 gid : group id of file's group \n\ |
|
|
620 rdev : id of device for block or character special files\n\ |
|
|
621 size : size in bytes\n\ |
|
|
622 atime : time of last access\n\ |
|
|
623 mtime : time of last modification\n\ |
|
|
624 ctime : time of last file status change\n\ |
|
|
625 blksize : size of blocks in the file\n\ |
|
|
626 blocks : number of blocks allocated for file\n\ |
|
|
627 \n\ |
|
2262
|
628 If the call is successful, ERR is 0 and MSG is an empty string.\n\ |
|
|
629 \n\ |
|
|
630 If the file does not exist, or some other error occurs, S is an\n\ |
|
|
631 empty matrix, ERR is -1, and MSG contains the corresponding\n\ |
|
|
632 system error message.") |
|
2075
|
633 { |
|
2262
|
634 octave_value_list retval; |
|
2075
|
635 |
|
|
636 if (args.length () == 1) |
|
|
637 { |
|
2926
|
638 string fname = file_ops::tilde_expand (args(0).string_value ()); |
|
2075
|
639 |
|
|
640 if (! error_state) |
|
|
641 { |
|
|
642 file_stat fs (fname); |
|
|
643 |
|
|
644 if (fs) |
|
2262
|
645 { |
|
|
646 retval(2) = string (); |
|
|
647 retval(1) = 0.0; |
|
|
648 retval(0) = octave_value (mk_stat_map (fs)); |
|
|
649 } |
|
|
650 else |
|
|
651 { |
|
|
652 retval(2) = fs.error (); |
|
|
653 retval(1) = -1.0; |
|
|
654 retval(0) = Matrix (); |
|
|
655 } |
|
2075
|
656 } |
|
|
657 } |
|
|
658 else |
|
|
659 print_usage ("stat"); |
|
|
660 |
|
|
661 return retval; |
|
|
662 } |
|
|
663 |
|
|
664 DEFUN (unlink, args, , |
|
2669
|
665 "[STATUS, MSG] = unlink (NAME)\n\ |
|
2075
|
666 \n\ |
|
2669
|
667 Delete the file NAME\n\ |
|
2075
|
668 \n\ |
|
2669
|
669 If successful, STATUS is 0 and MSG is an empty string. Otherwise,\n\ |
|
|
670 STATUS is nonzero and MSG contains a system-dependent error message.") |
|
2075
|
671 { |
|
2669
|
672 octave_value_list retval; |
|
|
673 |
|
|
674 retval(1) = string (); |
|
|
675 retval(0) = -1.0; |
|
2075
|
676 |
|
|
677 int nargin = args.length (); |
|
|
678 |
|
|
679 if (nargin == 1) |
|
|
680 { |
|
|
681 if (args(0).is_string ()) |
|
|
682 { |
|
|
683 string name = args(0).string_value (); |
|
|
684 |
|
2669
|
685 string msg; |
|
|
686 |
|
2926
|
687 int status = file_ops::unlink (name, msg); |
|
2669
|
688 |
|
2800
|
689 retval(0) = static_cast<double> (status); |
|
2669
|
690 |
|
|
691 if (status < 0) |
|
|
692 retval(1) = msg; |
|
2075
|
693 } |
|
|
694 else |
|
|
695 error ("unlink: file name must be a string"); |
|
|
696 } |
|
|
697 else |
|
|
698 print_usage ("unlink"); |
|
|
699 |
|
|
700 return retval; |
|
|
701 } |
|
|
702 |
|
|
703 DEFUN (waitpid, args, , |
|
2669
|
704 "[PID, MSG] = waitpid (PID, OPTIONS)\n\ |
|
2075
|
705 \n\ |
|
2669
|
706 Wait for process PID to terminate\n\ |
|
2075
|
707 \n\ |
|
|
708 PID can be:\n\ |
|
|
709 \n\ |
|
|
710 -1 : wait for any child process\n\ |
|
|
711 0 : wait for any child process whose process group ID is equal to\n\ |
|
|
712 that of the Octave interpreter process.\n\ |
|
|
713 > 0 : wait for termination of the child process with ID PID.\n\ |
|
|
714 \n\ |
|
|
715 OPTIONS is:\n\ |
|
|
716 \n\ |
|
|
717 0 : wait until signal is received or a child process exits (this\n\ |
|
|
718 is the default if the OPTIONS argument is missing) \n\ |
|
|
719 1 : do not hang if status is not immediately available\n\ |
|
|
720 2 : report the status of any child processes that are\n\ |
|
|
721 stopped, and whose status has not yet been reported\n\ |
|
|
722 since they stopped\n\ |
|
|
723 3 : implies both 1 and 2\n\ |
|
|
724 \n\ |
|
2669
|
725 If successful, PID is greater than 0 and contains the process ID of\n\ |
|
|
726 the child process that exited and MSG is an empty string.\n\ |
|
|
727 Otherwise, PID is less than zero and MSG contains a system-dependent\n\ |
|
|
728 error message.") |
|
2075
|
729 { |
|
2669
|
730 octave_value_list retval; |
|
|
731 |
|
|
732 retval(1) = string (); |
|
|
733 retval(0) = -1.0; |
|
2075
|
734 |
|
|
735 int nargin = args.length (); |
|
|
736 |
|
|
737 if (nargin == 1 || nargin == 2) |
|
|
738 { |
|
2475
|
739 #if defined (HAVE_WAITPID) |
|
2075
|
740 double pid_num = args(0).double_value (); |
|
|
741 |
|
|
742 if (! error_state) |
|
|
743 { |
|
|
744 if (D_NINT (pid_num) != pid_num) |
|
|
745 error ("waitpid: PID must be an integer value"); |
|
|
746 else |
|
|
747 { |
|
|
748 pid_t pid = (pid_t) pid_num; |
|
|
749 |
|
|
750 int options = 0; |
|
|
751 |
|
|
752 if (args.length () == 2) |
|
|
753 { |
|
|
754 double options_num = args(1).double_value (); |
|
|
755 |
|
|
756 if (! error_state) |
|
|
757 { |
|
|
758 if (D_NINT (options_num) != options_num) |
|
|
759 error ("waitpid: PID must be an integer value"); |
|
|
760 else |
|
|
761 { |
|
|
762 options = NINT (options_num); |
|
|
763 if (options < 0 || options > 3) |
|
|
764 error ("waitpid: invalid OPTIONS value specified"); |
|
|
765 } |
|
|
766 } |
|
|
767 } |
|
|
768 |
|
|
769 if (! error_state) |
|
2669
|
770 { |
|
|
771 pid_t status = waitpid (pid, 0, options); |
|
|
772 |
|
2800
|
773 retval(0) = static_cast<double> (status); |
|
2669
|
774 |
|
|
775 if (status < 0) |
|
|
776 retval(1) = strerror (errno); |
|
|
777 } |
|
2075
|
778 } |
|
|
779 } |
|
2475
|
780 #else |
|
|
781 gripe_not_supported ("waitpid"); |
|
|
782 #endif |
|
2075
|
783 } |
|
|
784 else |
|
|
785 print_usage ("waitpid"); |
|
|
786 |
|
|
787 return retval; |
|
|
788 } |
|
|
789 |
|
|
790 #if !defined (O_NONBLOCK) && defined (O_NDELAY) |
|
|
791 #define O_NONBLOCK O_NDELAY |
|
|
792 #endif |
|
|
793 |
|
|
794 void |
|
|
795 symbols_of_syscalls (void) |
|
|
796 { |
|
|
797 #if defined (F_DUPFD) |
|
2800
|
798 DEFCONST (F_DUPFD, static_cast<double> (F_DUPFD), 0, 0, |
|
2075
|
799 ""); |
|
|
800 #endif |
|
|
801 |
|
|
802 #if defined (F_GETFD) |
|
2800
|
803 DEFCONST (F_GETFD, static_cast<double> (F_GETFD), 0, 0, |
|
2075
|
804 ""); |
|
|
805 #endif |
|
|
806 |
|
|
807 #if defined (F_GETFL) |
|
2800
|
808 DEFCONST (F_GETFL, static_cast<double> (F_GETFL), 0, 0, |
|
2075
|
809 ""); |
|
|
810 #endif |
|
|
811 |
|
|
812 #if defined (F_SETFD) |
|
2800
|
813 DEFCONST (F_SETFD, static_cast<double> (F_SETFD), 0, 0, |
|
2075
|
814 ""); |
|
|
815 #endif |
|
|
816 |
|
|
817 #if defined (F_SETFL) |
|
2800
|
818 DEFCONST (F_SETFL, static_cast<double> (F_SETFL), 0, 0, |
|
2075
|
819 ""); |
|
|
820 #endif |
|
|
821 |
|
|
822 #if defined (O_APPEND) |
|
2800
|
823 DEFCONST (O_APPEND, static_cast<double> (O_APPEND), 0, 0, |
|
2075
|
824 ""); |
|
|
825 #endif |
|
|
826 |
|
2669
|
827 #if defined (O_ASYNC) |
|
2800
|
828 DEFCONST (O_ASYNC, static_cast<double> (O_ASYNC), 0, 0, |
|
2669
|
829 ""); |
|
|
830 #endif |
|
|
831 |
|
2075
|
832 #if defined (O_CREAT) |
|
2800
|
833 DEFCONST (O_CREAT, static_cast<double> (O_CREAT), 0, 0, |
|
2075
|
834 ""); |
|
|
835 #endif |
|
|
836 |
|
|
837 #if defined (O_EXCL) |
|
2800
|
838 DEFCONST (O_EXCL, static_cast<double> (O_EXCL), 0, 0, |
|
2075
|
839 ""); |
|
|
840 #endif |
|
|
841 |
|
|
842 #if defined (O_NONBLOCK) |
|
2800
|
843 DEFCONST (O_NONBLOCK, static_cast<double> (O_NONBLOCK), 0, 0, |
|
2075
|
844 ""); |
|
|
845 #endif |
|
|
846 |
|
|
847 #if defined (O_RDONLY) |
|
2800
|
848 DEFCONST (O_RDONLY, static_cast<double> (O_RDONLY), 0, 0, |
|
2075
|
849 ""); |
|
|
850 #endif |
|
|
851 |
|
|
852 #if defined (O_RDWR) |
|
2800
|
853 DEFCONST (O_RDWR, static_cast<double> (O_RDWR), 0, 0, |
|
2075
|
854 ""); |
|
|
855 #endif |
|
|
856 |
|
2669
|
857 #if defined (O_SYNC) |
|
2800
|
858 DEFCONST (O_SYNC, static_cast<double> (O_SYNC), 0, 0, |
|
2669
|
859 ""); |
|
|
860 #endif |
|
|
861 |
|
2075
|
862 #if defined (O_TRUNC) |
|
2800
|
863 DEFCONST (O_TRUNC, static_cast<double> (O_TRUNC), 0, 0, |
|
2075
|
864 ""); |
|
|
865 #endif |
|
|
866 |
|
|
867 #if defined (O_WRONLY) |
|
2800
|
868 DEFCONST (O_WRONLY, static_cast<double> (O_WRONLY), 0, 0, |
|
2075
|
869 ""); |
|
|
870 #endif |
|
|
871 } |
|
|
872 |
|
|
873 /* |
|
|
874 ;;; Local Variables: *** |
|
|
875 ;;; mode: C++ *** |
|
|
876 ;;; End: *** |
|
|
877 */ |
