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1 /* |
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2 |
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3 Copyright (C) 1996 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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24 #include <config.h> |
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25 #endif |
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26 |
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27 #include <cassert> |
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28 #include <csetjmp> |
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29 #include <csignal> |
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30 #include <cstdlib> |
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31 #include <cstring> |
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32 #include <ctime> |
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33 |
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1728
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34 #include <string> |
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35 |
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36 #include <fstream.h> |
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37 #include <iostream.h> |
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38 #include <strstream.h> |
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39 |
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40 #ifdef HAVE_UNISTD_H |
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41 #include <sys/types.h> |
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42 #include <unistd.h> |
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43 #endif |
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44 |
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45 #include "lo-error.h" |
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2370
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46 #include "lo-mappers.h" |
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47 #include "str-vec.h" |
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48 |
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49 #include "builtins.h" |
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50 #include "defaults.h" |
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51 #include "defun.h" |
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52 #include "dynamic-ld.h" |
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53 #include "error.h" |
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54 #include "file-io.h" |
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55 #include "help.h" |
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56 #include "input.h" |
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57 #include "lex.h" |
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2162
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58 #include "oct-conf.h" |
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59 #include "oct-hist.h" |
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2162
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60 #include "oct-map.h" |
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61 #include "pager.h" |
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62 #include "parse.h" |
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63 #include "pathsearch.h" |
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64 #include "procstream.h" |
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65 #include "ov.h" |
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66 #include "pt-fvc.h" |
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67 #include "pt-misc.h" |
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68 #include "pt-plot.h" |
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69 #include "sighandlers.h" |
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70 #include "sysdep.h" |
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71 #include "toplev.h" |
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72 #include "unwind-prot.h" |
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73 #include "utils.h" |
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74 #include "variables.h" |
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75 #include "version.h" |
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76 |
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77 // argv[0] for this program. |
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2204
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78 string Vprogram_invocation_name; |
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79 |
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80 // Cleaned-up name of this program, not including path information. |
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81 string Vprogram_name; |
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82 |
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83 // Login name for user running this program. |
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84 string Vuser_name; |
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85 |
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86 // Name of the host we are running on. |
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87 string Vhost_name; |
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88 |
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89 // User's home directory. |
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90 string Vhome_directory; |
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91 |
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92 // Nonzero means we are using readline. |
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93 // (--no-line-editing) |
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94 #if defined (USE_READLINE) |
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95 int using_readline = 1; |
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96 #else |
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97 int using_readline = 0; |
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98 #endif |
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99 |
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100 // Nonzero means we printed messages about reading startup files. |
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101 int reading_startup_message_printed = 0; |
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102 |
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103 // Command number, counting from the beginning of this session. |
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104 int current_command_number = 1; |
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105 |
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106 // Nonzero means we are exiting via the builtin exit or quit functions. |
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107 int quitting_gracefully = 0; |
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108 |
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109 // Current command to execute. |
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110 tree_statement_list *global_command = 0; |
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111 |
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112 // Pointer to function that is currently being evaluated. |
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113 tree_function *curr_function = 0; |
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114 |
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115 // Nonzero means input is coming from startup file. |
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116 int input_from_startup_file = 0; |
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117 |
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118 // Nonzero means that input is coming from a file that was named on |
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119 // the command line. |
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120 int input_from_command_line_file = 1; |
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121 |
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122 // Top level context (?) |
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123 jmp_buf toplevel; |
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124 |
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125 void |
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126 parse_and_execute (FILE *f, int print) |
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127 { |
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128 begin_unwind_frame ("parse_and_execute"); |
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129 |
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130 YY_BUFFER_STATE old_buf = current_buffer (); |
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131 YY_BUFFER_STATE new_buf = create_buffer (f); |
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132 |
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133 add_unwind_protect (restore_input_buffer, (void *) old_buf); |
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134 add_unwind_protect (delete_input_buffer, (void *) new_buf); |
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135 |
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136 switch_to_buffer (new_buf); |
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137 |
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138 unwind_protect_int (using_readline); |
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139 unwind_protect_int (input_from_command_line_file); |
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140 |
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141 using_readline = 0; |
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142 input_from_command_line_file = 0; |
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143 |
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144 unwind_protect_ptr (curr_sym_tab); |
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145 |
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146 int retval; |
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147 do |
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148 { |
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149 reset_parser (); |
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150 |
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151 retval = yyparse (); |
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152 |
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153 if (retval == 0 && global_command) |
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154 { |
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155 global_command->eval (print); |
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156 delete global_command; |
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157 } |
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158 } |
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159 while (retval == 0); |
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160 |
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161 run_unwind_frame ("parse_and_execute"); |
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162 } |
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163 |
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164 void |
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165 parse_and_execute (const string& s, int print, int verbose, |
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166 const char *warn_for) |
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167 { |
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168 begin_unwind_frame ("parse_and_execute_2"); |
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169 |
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170 unwind_protect_int (reading_script_file); |
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171 unwind_protect_str (curr_fcn_file_full_name); |
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172 |
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173 reading_script_file = 1; |
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174 curr_fcn_file_full_name = s; |
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175 |
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176 FILE *f = get_input_from_file (s, 0); |
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177 |
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178 if (f) |
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179 { |
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180 unwind_protect_int (input_line_number); |
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181 unwind_protect_int (current_input_column); |
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182 |
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183 input_line_number = 0; |
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184 current_input_column = 1; |
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185 |
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186 if (verbose) |
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187 { |
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188 cout << "reading commands from " << s << " ... "; |
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189 reading_startup_message_printed = 1; |
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190 cout.flush (); |
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191 } |
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192 |
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193 parse_and_execute (f, print); |
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194 |
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195 fclose (f); |
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196 |
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197 if (verbose) |
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198 cout << "done." << endl; |
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199 } |
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200 else if (warn_for) |
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201 error ("%s: unable to open file `%s'", warn_for, s.c_str ()); |
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202 |
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203 run_unwind_frame ("parse_and_execute_2"); |
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204 } |
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205 |
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206 int |
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207 main_loop (void) |
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208 { |
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209 // Allow the user to interrupt us without exiting. |
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210 |
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211 octave_save_signal_mask (); |
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212 |
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213 if (setjmp (toplevel) != 0) |
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214 { |
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215 raw_mode (0); |
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216 |
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217 cout << "\n"; |
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218 |
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219 octave_restore_signal_mask (); |
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220 } |
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221 |
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222 can_interrupt = 1; |
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223 |
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224 catch_interrupts (); |
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225 |
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226 // The big loop. |
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227 |
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228 int retval; |
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229 do |
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230 { |
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231 curr_sym_tab = top_level_sym_tab; |
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232 |
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233 reset_parser (); |
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234 |
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235 retval = yyparse (); |
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236 |
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237 if (retval == 0 && global_command) |
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238 { |
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239 global_command->eval (1); |
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240 |
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241 delete global_command; |
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242 |
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243 if (octave_completion_matches_called) |
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244 octave_completion_matches_called = false; |
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245 else |
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246 current_command_number++; |
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247 } |
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248 } |
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249 while (retval == 0); |
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250 |
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251 return retval; |
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252 } |
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253 |
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254 DEFUN (source, args, , |
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255 "source (FILE)\n\ |
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256 \n\ |
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257 Parse and execute the contents of FILE. Like executing commands in a\n\ |
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258 script file but without requiring the file to be named `FILE.m'.") |
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259 { |
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260 octave_value_list retval; |
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261 |
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262 int nargin = args.length (); |
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263 |
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264 if (nargin == 1) |
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265 { |
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266 string file = args(0).string_value (); |
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267 |
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268 if (! error_state) |
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269 { |
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270 file = oct_tilde_expand (file); |
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271 |
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272 parse_and_execute (file, 1, 0, "source"); |
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273 |
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274 if (error_state) |
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275 error ("source: error sourcing file `%s'", file.c_str ()); |
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276 } |
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277 else |
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278 error ("source: expecting file name as argument"); |
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279 } |
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280 else |
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281 print_usage ("source"); |
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282 |
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283 return retval; |
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284 } |
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285 |
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286 // Fix up things before exiting. |
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287 |
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288 void |
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289 clean_up_and_exit (int retval) |
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290 { |
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291 raw_mode (0); |
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292 |
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293 octave_command_history.clean_up_and_save (); |
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294 |
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295 close_plot_stream (); |
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296 |
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297 close_files (); |
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298 |
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299 cleanup_tmp_files (); |
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300 |
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301 if (!quitting_gracefully && (interactive || forced_interactive)) |
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302 cout << "\n"; |
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303 |
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304 if (retval == EOF) |
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305 retval = 0; |
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306 |
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307 exit (retval); |
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308 |
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309 // This is bogus but should prevent g++ from giving a warning saying |
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310 // that this volatile function does return. |
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311 |
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312 panic_impossible (); |
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313 } |
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314 |
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1957
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315 DEFUN_TEXT (casesen, args, , |
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316 "casesen [on|off]") |
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317 { |
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318 octave_value_list retval; |
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319 |
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320 int argc = args.length () + 1; |
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321 |
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322 string_vector argv = args.make_argv ("casesen"); |
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323 |
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324 if (error_state) |
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325 return retval; |
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326 |
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327 if (argc == 1 || (argc > 1 && argv[1] == "off")) |
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328 warning ("casesen: sorry, Octave is always case sensitive"); |
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329 else if (argc > 1 && argv[1] == "on") |
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330 ; // ok. |
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331 else |
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332 print_usage ("casesen"); |
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333 |
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334 return retval; |
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335 } |
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336 |
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1957
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337 DEFUN (computer, args, nargout, |
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338 "computer ():\n\ |
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339 \n\ |
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340 Have Octave ask the system, \"What kind of computer are you?\"") |
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341 { |
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342 octave_value_list retval; |
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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 warning ("computer: ignoring extra arguments"); |
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348 |
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349 string msg; |
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350 |
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351 if (strcmp (TARGET_HOST_TYPE, "unknown") == 0) |
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352 msg = "Hi Dave, I'm a HAL-9000"; |
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353 else |
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354 msg = TARGET_HOST_TYPE; |
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355 |
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356 if (nargout == 0) |
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357 octave_stdout << msg << "\n"; |
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358 else |
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359 retval = msg; |
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360 |
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361 return retval; |
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362 } |
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363 |
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364 DEFUN (quit, args, , |
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365 "quit (STATUS): exit Octave gracefully, returning STATUS to the system.\n\ |
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366 \n\ |
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367 STATUS should be an integer value. If STATUS is missing, 0 is assumed.") |
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368 { |
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369 octave_value_list retval; |
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2068
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370 |
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371 int exit_status = 0; |
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372 |
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373 quitting_gracefully = 1; |
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374 |
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375 int nargin = args.length (); |
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376 |
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377 if (nargin > 0) |
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2068
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378 { |
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379 // XXX FIXME XXX -- need a safe uniform way to do this. |
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380 |
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2068
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381 double tmp = args(0).double_value (); |
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382 |
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2068
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383 if (! error_state && ! xisnan (tmp)) |
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384 exit_status = NINT (tmp); |
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385 } |
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386 |
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387 clean_up_and_exit (exit_status); |
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388 |
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389 return retval; |
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390 } |
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391 |
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392 DEFALIAS (exit, quit); |
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393 |
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1957
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394 DEFUN (warranty, , , |
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395 "warranty (): describe copying conditions") |
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396 { |
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2086
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397 octave_value_list retval; |
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398 |
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2095
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399 octave_stdout << "\n" OCTAVE_NAME_VERSION_AND_COPYRIGHT "\n\n\ |
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400 This program is free software; you can redistribute it and/or modify\n\ |
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401 it under the terms of the GNU General Public License as published by\n\ |
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402 the Free Software Foundation; either version 2 of the License, or\n\ |
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403 (at your option) any later version.\n\ |
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404 \n\ |
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405 This program is distributed in the hope that it will be useful,\n\ |
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406 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\ |
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407 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\ |
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408 GNU General Public License for more details.\n\ |
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409 \n\ |
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410 You should have received a copy of the GNU General Public License\n\ |
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411 along with this program. If not, write to the Free Software\n\ |
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412 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.\n\ |
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413 \n"; |
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414 |
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415 return retval; |
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416 } |
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417 |
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418 // XXX FIXME XXX -- this may not be the best place for these... |
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419 |
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2086
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420 octave_value_list |
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421 feval (const octave_value_list& args, int nargout) |
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422 { |
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2086
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423 octave_value_list retval; |
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424 |
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425 tree_fvc *fcn = is_valid_function (args(0), "feval", 1); |
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426 if (fcn) |
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427 { |
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428 int tmp_nargin = args.length () - 1; |
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2086
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429 octave_value_list tmp_args; |
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1683
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430 tmp_args.resize (tmp_nargin); |
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431 for (int i = 0; i < tmp_nargin; i++) |
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432 tmp_args(i) = args(i+1); |
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433 retval = fcn->eval (0, nargout, tmp_args); |
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434 } |
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435 |
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436 return retval; |
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437 } |
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438 |
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1957
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439 DEFUN (feval, args, nargout, |
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1683
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440 "feval (NAME, ARGS, ...)\n\ |
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441 \n\ |
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442 evaluate NAME as a function, passing ARGS as its arguments") |
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443 { |
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2086
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444 octave_value_list retval; |
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445 |
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446 int nargin = args.length (); |
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447 |
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448 if (nargin > 0) |
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449 retval = feval (args, nargout); |
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450 else |
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451 print_usage ("feval"); |
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452 |
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453 return retval; |
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454 } |
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455 |
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2086
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456 static octave_value_list |
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1755
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457 eval_string (const string& s, int print, int& parse_status, |
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1683
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458 int nargout) |
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459 { |
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460 begin_unwind_frame ("eval_string"); |
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461 |
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462 unwind_protect_int (get_input_from_eval_string); |
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463 unwind_protect_int (input_from_command_line_file); |
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464 unwind_protect_ptr (global_command); |
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1755
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465 unwind_protect_str (current_eval_string); |
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466 |
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467 get_input_from_eval_string = 1; |
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468 input_from_command_line_file = 0; |
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1755
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469 current_eval_string = s; |
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1683
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470 |
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471 YY_BUFFER_STATE old_buf = current_buffer (); |
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472 YY_BUFFER_STATE new_buf = create_buffer (0); |
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473 |
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474 add_unwind_protect (restore_input_buffer, (void *) old_buf); |
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475 add_unwind_protect (delete_input_buffer, (void *) new_buf); |
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476 |
|
|
477 switch_to_buffer (new_buf); |
|
|
478 |
|
|
479 unwind_protect_ptr (curr_sym_tab); |
|
|
480 |
|
|
481 reset_parser (); |
|
|
482 |
|
|
483 parse_status = yyparse (); |
|
|
484 |
|
|
485 // Important to reset the idea of where input is coming from before |
|
|
486 // trying to eval the command we just parsed -- it might contain the |
|
|
487 // name of an function file that still needs to be parsed! |
|
|
488 |
|
|
489 tree_statement_list *command = global_command; |
|
|
490 |
|
|
491 run_unwind_frame ("eval_string"); |
|
|
492 |
|
2086
|
493 octave_value_list retval; |
|
1683
|
494 |
|
|
495 if (parse_status == 0 && command) |
|
|
496 { |
|
|
497 retval = command->eval (print, nargout); |
|
|
498 delete command; |
|
|
499 } |
|
|
500 |
|
|
501 return retval; |
|
|
502 } |
|
|
503 |
|
2086
|
504 octave_value |
|
1755
|
505 eval_string (const string& s, int print, int& parse_status) |
|
1683
|
506 { |
|
2086
|
507 octave_value retval; |
|
1683
|
508 |
|
2086
|
509 octave_value_list tmp = eval_string (s, print, parse_status, 1); |
|
1683
|
510 |
|
|
511 retval = tmp(0); |
|
|
512 |
|
|
513 return retval; |
|
|
514 } |
|
|
515 |
|
2086
|
516 static octave_value_list |
|
|
517 eval_string (const octave_value& arg, int& parse_status, int nargout) |
|
1683
|
518 { |
|
1755
|
519 string s = arg.string_value (); |
|
1683
|
520 |
|
|
521 if (error_state) |
|
|
522 { |
|
|
523 error ("eval: expecting string argument"); |
|
|
524 return -1.0; |
|
|
525 } |
|
|
526 |
|
|
527 // Yes Virginia, we always print here... |
|
|
528 |
|
1755
|
529 return eval_string (s, 1, parse_status, nargout); |
|
1683
|
530 } |
|
|
531 |
|
1957
|
532 DEFUN (eval, args, nargout, |
|
1683
|
533 "eval (TRY, CATCH)\n\ |
|
|
534 \n\ |
|
|
535 Evaluate the string TRY as octave code. If that fails, evaluate the\n\ |
|
|
536 string CATCH.") |
|
|
537 { |
|
2086
|
538 octave_value_list retval; |
|
1683
|
539 |
|
|
540 int nargin = args.length (); |
|
|
541 |
|
|
542 if (nargin > 0) |
|
|
543 { |
|
|
544 begin_unwind_frame ("Feval"); |
|
|
545 |
|
|
546 if (nargin > 1) |
|
|
547 { |
|
|
548 unwind_protect_int (buffer_error_messages); |
|
|
549 buffer_error_messages = 1; |
|
|
550 } |
|
|
551 |
|
|
552 int parse_status = 0; |
|
|
553 |
|
|
554 retval = eval_string (args(0), parse_status, nargout); |
|
|
555 |
|
|
556 if (nargin > 1 && (parse_status != 0 || error_state)) |
|
|
557 { |
|
|
558 error_state = 0; |
|
|
559 |
|
|
560 // Set up for letting the user print any messages from |
|
|
561 // errors that occurred in the first part of this eval(). |
|
|
562 |
|
|
563 buffer_error_messages = 0; |
|
|
564 bind_global_error_variable (); |
|
|
565 add_unwind_protect (clear_global_error_variable, 0); |
|
|
566 |
|
|
567 eval_string (args(1), parse_status, nargout); |
|
|
568 |
|
2086
|
569 retval = octave_value_list (); |
|
1683
|
570 } |
|
|
571 |
|
|
572 run_unwind_frame ("Feval"); |
|
|
573 } |
|
|
574 else |
|
|
575 print_usage ("eval"); |
|
|
576 |
|
|
577 return retval; |
|
|
578 } |
|
|
579 |
|
|
580 // Execute a shell command. |
|
|
581 |
|
1965
|
582 static void |
|
|
583 cleanup_iprocstream (void *p) |
|
|
584 { |
|
|
585 delete (iprocstream *) p; |
|
|
586 } |
|
|
587 |
|
2086
|
588 static octave_value_list |
|
2321
|
589 run_command_and_return_output (const string& cmd_str) |
|
2083
|
590 { |
|
2086
|
591 octave_value_list retval; |
|
2083
|
592 |
|
|
593 iprocstream *cmd = new iprocstream (cmd_str.c_str ()); |
|
|
594 |
|
|
595 add_unwind_protect (cleanup_iprocstream, cmd); |
|
|
596 |
|
|
597 int status = 127; |
|
|
598 |
|
|
599 if (cmd && *cmd) |
|
|
600 { |
|
|
601 ostrstream output_buf; |
|
2095
|
602 |
|
2083
|
603 char ch; |
|
|
604 while (cmd->get (ch)) |
|
2321
|
605 output_buf.put (ch); |
|
2083
|
606 |
|
|
607 status = cmd->close (); |
|
|
608 |
|
|
609 // The value in status is as returned by waitpid. If the |
|
|
610 // process exited normally, extract the actual exit status of |
|
|
611 // the command. Otherwise, return 127 as a failure code. |
|
|
612 |
|
|
613 if ((status & 0xff) == 0) |
|
|
614 status = (status & 0xff00) >> 8; |
|
|
615 |
|
2321
|
616 output_buf << ends; |
|
2145
|
617 |
|
2321
|
618 char *msg = output_buf.str (); |
|
2083
|
619 |
|
2321
|
620 retval(1) = (double) status; |
|
|
621 retval(0) = msg; |
|
2083
|
622 |
|
2321
|
623 delete [] msg; |
|
2083
|
624 } |
|
|
625 else |
|
|
626 error ("unable to start subprocess for `%s'", cmd_str.c_str ()); |
|
|
627 |
|
|
628 run_unwind_protect (); |
|
|
629 |
|
|
630 return retval; |
|
|
631 } |
|
|
632 |
|
1957
|
633 DEFUN (system, args, nargout, |
|
2083
|
634 "system (STRING [, RETURN_OUTPUT] [, TYPE])\n\ |
|
|
635 \n\ |
|
|
636 Execute the shell command specified by STRING.\n\ |
|
|
637 \n\ |
|
|
638 If TYPE is \"async\", the process is started in the background and the\n\ |
|
|
639 pid of the child proces is returned immediately. Otherwise, the\n\ |
|
|
640 process is started, and Octave waits until it exits. If TYPE argument\n\ |
|
|
641 is omitted, a value of \"sync\" is assumed.\n\ |
|
|
642 \n\ |
|
|
643 If NARGIN == 2 (the actual value of RETURN_OUTPUT is irrelevant) and\n\ |
|
|
644 the subprocess is started synchronously, or if system() is called with\n\ |
|
|
645 NARGIN == 1 and NARGOUT > 0, the output from the command is returned.\n\ |
|
|
646 Otherwise, if the subprocess is executed synchronously, it's output is\n\ |
|
2321
|
647 sent to the standard output. To send the output of a command executed\n\ |
|
|
648 with system() through the pager, use a command like\n\ |
|
|
649 \n\ |
|
|
650 disp (system (CMD, 1));\n\ |
|
|
651 \n\ |
|
|
652 or\n\ |
|
|
653 \n\ |
|
2322
|
654 printf (\"%s\\n\", system (CMD, 1));") |
|
1683
|
655 { |
|
2086
|
656 octave_value_list retval; |
|
1683
|
657 |
|
|
658 int nargin = args.length (); |
|
|
659 |
|
2083
|
660 if (nargin > 0 && nargin < 4) |
|
1683
|
661 { |
|
2083
|
662 bool return_output = (nargout > 0 || nargin > 1); |
|
|
663 |
|
|
664 string cmd_str = args(0).string_value (); |
|
|
665 |
|
|
666 enum exec_type { sync, async }; |
|
|
667 |
|
|
668 exec_type type = sync; |
|
|
669 |
|
|
670 if (! error_state) |
|
|
671 { |
|
|
672 if (nargin > 2) |
|
|
673 { |
|
|
674 string type_str = args(2).string_value (); |
|
1683
|
675 |
|
2083
|
676 if (! error_state) |
|
|
677 { |
|
|
678 if (type_str == "sync") |
|
|
679 type = sync; |
|
|
680 else if (type_str == "async") |
|
|
681 type = async; |
|
|
682 else |
|
|
683 error ("system: third arg must be \"sync\" or \"async\""); |
|
|
684 } |
|
|
685 else |
|
|
686 error ("system: third argument must be a string"); |
|
|
687 } |
|
|
688 } |
|
|
689 else |
|
|
690 error ("system: expecting string as first argument"); |
|
1683
|
691 |
|
2083
|
692 if (! error_state) |
|
|
693 { |
|
|
694 if (type == async) |
|
|
695 { |
|
|
696 pid_t pid = fork (); |
|
|
697 |
|
|
698 if (pid < 0) |
|
|
699 error ("system: fork failed -- can't create child process"); |
|
|
700 else if (pid == 0) |
|
|
701 { |
|
|
702 system (cmd_str.c_str ()); |
|
|
703 exit (0); |
|
|
704 retval(0) = 0.0; |
|
|
705 } |
|
|
706 else |
|
|
707 retval(0) = (double) pid; |
|
|
708 } |
|
2321
|
709 else if (return_output) |
|
|
710 retval = run_command_and_return_output (cmd_str); |
|
2083
|
711 else |
|
2321
|
712 { |
|
|
713 int status = system (cmd_str.c_str ()); |
|
|
714 |
|
|
715 // The value in status is as returned by waitpid. If |
|
|
716 // the process exited normally, extract the actual exit |
|
|
717 // status of the command. Otherwise, return 127 as a |
|
|
718 // failure code. |
|
|
719 |
|
|
720 if ((status & 0xff) == 0) |
|
|
721 status = (status & 0xff00) >> 8; |
|
|
722 |
|
|
723 retval = (double) status; |
|
|
724 } |
|
2083
|
725 } |
|
1683
|
726 } |
|
|
727 else |
|
2083
|
728 print_usage ("system"); |
|
1683
|
729 |
|
|
730 return retval; |
|
|
731 } |
|
|
732 |
|
|
733 DEFALIAS (shell_cmd, system); |
|
|
734 |
|
2077
|
735 static SLStack<string> octave_atexit_functions; |
|
|
736 |
|
|
737 void |
|
|
738 do_octave_atexit (void) |
|
|
739 { |
|
|
740 while (! octave_atexit_functions.empty ()) |
|
|
741 { |
|
2086
|
742 octave_value_list fcn = octave_atexit_functions.pop (); |
|
2077
|
743 |
|
|
744 feval (fcn, 0); |
|
|
745 } |
|
|
746 } |
|
|
747 |
|
2162
|
748 DEFUN (atexit, args, , |
|
2077
|
749 "atexit (NAME): register NAME as a function to call when Octave exits\n\ |
|
|
750 \n\ |
|
|
751 Functions are called with no arguments in the reverse of the order in |
|
|
752 which they were registered with atexit()") |
|
|
753 { |
|
2086
|
754 octave_value_list retval; |
|
2077
|
755 |
|
|
756 #if defined (HAVE_ATEXIT) || defined (HAVE_ON_EXIT) |
|
|
757 int nargin = args.length (); |
|
|
758 |
|
|
759 if (nargin == 1) |
|
|
760 { |
|
|
761 string arg = args(0).string_value (); |
|
|
762 |
|
|
763 if (! error_state) |
|
|
764 octave_atexit_functions.push (arg); |
|
|
765 else |
|
|
766 error ("atexit: argument must be a string"); |
|
|
767 } |
|
|
768 else |
|
|
769 print_usage ("atexit"); |
|
|
770 #else |
|
2078
|
771 gripe_not_supported ("atexit"); |
|
2077
|
772 #endif |
|
|
773 |
|
|
774 return retval; |
|
|
775 } |
|
|
776 |
|
2162
|
777 DEFUN (octave_config_info, , , |
|
|
778 "return a structure containing configuration information") |
|
|
779 { |
|
|
780 Octave_map m; |
|
|
781 |
|
|
782 m ["default_pager"] = DEFAULT_PAGER; |
|
|
783 m ["prefix"] = OCTAVE_PREFIX; |
|
|
784 m ["exec_prefix"] = OCTAVE_EXEC_PREFIX; |
|
|
785 m ["datadir"] = OCTAVE_DATADIR; |
|
|
786 m ["libdir"] = OCTAVE_LIBDIR; |
|
|
787 m ["bindir"] = OCTAVE_BINDIR; |
|
|
788 m ["infodir"] = OCTAVE_INFODIR; |
|
|
789 m ["fcnfiledir"] = OCTAVE_FCNFILEDIR; |
|
|
790 m ["localfcnfiledir"] = OCTAVE_LOCALFCNFILEDIR; |
|
|
791 m ["localstartupfiledir"] = OCTAVE_LOCALSTARTUPFILEDIR; |
|
|
792 m ["startupfiledir"] = OCTAVE_STARTUPFILEDIR; |
|
|
793 m ["localfcnfilepath"] = OCTAVE_LOCALFCNFILEPATH; |
|
|
794 m ["archlibdir"] = OCTAVE_ARCHLIBDIR; |
|
|
795 m ["octfiledir"] = OCTAVE_OCTFILEDIR; |
|
|
796 m ["localoctfilepath"] = OCTAVE_LOCALOCTFILEPATH; |
|
|
797 m ["fcnfilepath"] = OCTAVE_FCNFILEPATH; |
|
|
798 m ["imagepath"] = OCTAVE_IMAGEPATH; |
|
|
799 m ["target_host_type"] = TARGET_HOST_TYPE; |
|
|
800 m ["configure_options"] = config_opts; |
|
|
801 m ["F77"] = F77; |
|
|
802 m ["FFLAGS"] = FFLAGS; |
|
|
803 m ["FPICFLAG"] = FPICFLAG; |
|
|
804 m ["F2C"] = F2C; |
|
|
805 m ["F2CFLAGS"] = F2CFLAGS; |
|
|
806 m ["FLIBS"] = FLIBS; |
|
|
807 m ["CPPFLAGS"] = CPPFLAGS; |
|
|
808 m ["INCFLAGS"] = INCFLAGS; |
|
|
809 m ["CC"] = CC " " CC_VERSION; |
|
|
810 m ["CFLAGS"] = CFLAGS; |
|
|
811 m ["CPICFLAG"] = CPICFLAG; |
|
|
812 m ["CXX"] = CXX " " CXX_VERSION; |
|
|
813 m ["CXXFLAGS"] = CXXFLAGS; |
|
|
814 m ["CXXPICFLAG"] = CXXPICFLAG; |
|
|
815 m ["LDFLAGS"] = LDFLAGS; |
|
|
816 m ["LIBFLAGS"] = LIBFLAGS; |
|
|
817 m ["RLD_FLAG"] = RLD_FLAG; |
|
|
818 m ["CXXLIBS"] = CXXLIBS; |
|
|
819 m ["TERMLIBS"] = TERMLIBS; |
|
|
820 m ["LIBS"] = LIBS; |
|
|
821 m ["LEXLIB"] = LEXLIB; |
|
|
822 m ["LIBPLPLOT"] = LIBPLPLOT; |
|
|
823 m ["LIBDLFCN"] = LIBDLFCN; |
|
|
824 m ["DEFS"] = DEFS; |
|
|
825 |
|
|
826 return octave_value (m); |
|
|
827 } |
|
|
828 |
|
1683
|
829 #if defined (__GNUG__) && defined (DEBUG_NEW_DELETE) |
|
|
830 int debug_new_delete = 0; |
|
|
831 |
|
|
832 typedef void (*vfp)(void); |
|
|
833 extern vfp __new_handler; |
|
|
834 |
|
|
835 void * |
|
|
836 __builtin_new (size_t sz) |
|
|
837 { |
|
|
838 void *p; |
|
|
839 |
|
|
840 /* malloc (0) is unpredictable; avoid it. */ |
|
|
841 if (sz == 0) |
|
|
842 sz = 1; |
|
|
843 p = (void *) malloc (sz); |
|
|
844 while (p == 0) |
|
|
845 { |
|
|
846 (*__new_handler) (); |
|
|
847 p = (void *) malloc (sz); |
|
|
848 } |
|
|
849 |
|
|
850 if (debug_new_delete) |
|
|
851 cout << "__builtin_new: " << p << endl; |
|
|
852 |
|
|
853 return p; |
|
|
854 } |
|
|
855 |
|
|
856 void |
|
|
857 __builtin_delete (void *ptr) |
|
|
858 { |
|
|
859 if (debug_new_delete) |
|
|
860 cout << "__builtin_delete: " << ptr << endl; |
|
|
861 |
|
|
862 if (ptr) |
|
|
863 free (ptr); |
|
|
864 } |
|
|
865 #endif |
|
|
866 |
|
|
867 /* |
|
|
868 ;;; Local Variables: *** |
|
|
869 ;;; mode: C++ *** |
|
|
870 ;;; End: *** |
|
|
871 */ |
