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1683
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1 /* |
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2 |
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2847
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3 Copyright (C) 1996, 1997 John W. Eaton |
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1683
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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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5307
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19 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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1683
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include <cassert> |
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4489
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29 #include <cerrno> |
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1683
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30 #include <cstdlib> |
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31 #include <cstring> |
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4221
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32 #include <new> |
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1683
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33 |
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3503
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34 #include <fstream> |
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35 #include <iostream> |
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5765
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36 #include <sstream> |
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1728
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37 #include <string> |
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38 |
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1683
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39 #ifdef HAVE_UNISTD_H |
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2442
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40 #ifdef HAVE_SYS_TYPES_H |
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1683
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41 #include <sys/types.h> |
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2442
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42 #endif |
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1683
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43 #include <unistd.h> |
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44 #endif |
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45 |
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2926
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46 #include "cmd-edit.h" |
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47 #include "file-ops.h" |
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1683
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48 #include "lo-error.h" |
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2370
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49 #include "lo-mappers.h" |
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3020
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50 #include "oct-env.h" |
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4153
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51 #include "quit.h" |
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1755
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52 #include "str-vec.h" |
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1683
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53 |
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2492
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54 #include <defaults.h> |
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1683
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55 #include "defun.h" |
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56 #include "error.h" |
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57 #include "file-io.h" |
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58 #include "input.h" |
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59 #include "lex.h" |
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2492
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60 #include <oct-conf.h> |
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1742
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61 #include "oct-hist.h" |
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2162
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62 #include "oct-map.h" |
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2862
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63 #include "oct-obj.h" |
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1683
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64 #include "pager.h" |
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65 #include "parse.h" |
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66 #include "pathsearch.h" |
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67 #include "procstream.h" |
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2370
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68 #include "ov.h" |
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2985
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69 #include "pt-jump.h" |
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2982
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70 #include "pt-stmt.h" |
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1683
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71 #include "sighandlers.h" |
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72 #include "sysdep.h" |
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2693
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73 #include "syswait.h" |
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1750
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74 #include "toplev.h" |
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1683
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75 #include "unwind-prot.h" |
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76 #include "utils.h" |
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77 #include "variables.h" |
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2492
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78 #include <version.h> |
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79 |
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3020
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80 // TRUE means we are exiting via the builtin exit or quit functions. |
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81 static bool quitting_gracefully = false; |
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1683
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82 |
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4217
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83 // TRUE means we are ready to interpret commands, but not everything |
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84 // is ready for interactive use. |
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85 bool octave_interpreter_ready = false; |
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86 |
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4172
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87 // TRUE means we've processed all the init code and we are good to go. |
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88 bool octave_initialized = false; |
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89 |
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1683
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90 // Current command to execute. |
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91 tree_statement_list *global_command = 0; |
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92 |
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4238
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93 // Pointer to parent function that is currently being evaluated. |
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4748
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94 octave_function *curr_parent_function = 0; |
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4238
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95 |
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5743
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96 octave_call_stack *octave_call_stack::instance = 0; |
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97 |
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98 octave_function * |
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99 octave_call_stack::do_caller (void) |
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100 { |
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101 octave_function *retval = 0; |
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102 |
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103 if (cs.size () > 1) |
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104 { |
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105 iterator p = cs.begin (); |
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106 retval = *++p; |
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107 } |
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108 |
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109 return retval; |
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110 } |
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111 |
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5744
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112 octave_user_script * |
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113 octave_call_stack::do_caller_user_script (void) |
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114 { |
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115 octave_user_script *retval = 0; |
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116 |
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117 for (iterator p = cs.begin (); p != cs.end (); p++) |
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118 { |
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119 octave_function *f = *p; |
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120 |
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121 if (f && f->is_user_script ()) |
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122 { |
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123 retval = dynamic_cast<octave_user_script *> (f); |
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124 break; |
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125 } |
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126 } |
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127 |
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128 return retval; |
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129 } |
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130 |
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5743
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131 octave_user_function * |
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5744
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132 octave_call_stack::do_caller_user_function (void) |
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5743
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133 { |
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134 octave_user_function *retval = 0; |
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135 |
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136 for (iterator p = cs.begin (); p != cs.end (); p++) |
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137 { |
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138 octave_function *f = *p; |
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139 |
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140 if (f && f->is_user_function ()) |
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141 { |
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142 retval = dynamic_cast<octave_user_function *> (f); |
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143 break; |
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144 } |
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145 } |
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146 |
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147 return retval; |
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148 } |
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149 |
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5744
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150 octave_function * |
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151 octave_call_stack::do_caller_user_script_or_function (void) |
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152 { |
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153 octave_function *retval = 0; |
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154 |
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155 for (iterator p = cs.begin (); p != cs.end (); p++) |
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156 { |
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157 octave_function *f = *p; |
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158 |
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159 if (f && (f->is_user_script () || f->is_user_function ())) |
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160 { |
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161 retval = f; |
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162 break; |
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163 } |
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164 } |
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165 |
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166 return retval; |
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167 } |
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168 |
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169 void |
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170 octave_call_stack::unwind_pop_script (void *) |
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171 { |
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172 octave_function *f = top (); |
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173 pop (); |
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174 assert (f && f->is_user_script ()); |
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175 delete f; |
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176 } |
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177 |
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4180
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178 static void |
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179 recover_from_exception (void) |
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180 { |
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181 can_interrupt = true; |
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4182
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182 octave_interrupt_immediately = 0; |
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4180
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183 octave_interrupt_state = 0; |
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5142
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184 octave_signal_caught = 0; |
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4180
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185 octave_allocation_error = 0; |
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186 octave_restore_signal_mask (); |
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187 octave_catch_interrupts (); |
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188 } |
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189 |
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1907
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190 int |
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5189
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191 main_loop (void) |
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1907
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192 { |
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2016
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193 octave_save_signal_mask (); |
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194 |
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3020
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195 can_interrupt = true; |
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1907
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196 |
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5142
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197 octave_signal_hook = octave_signal_handler; |
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4429
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198 octave_interrupt_hook = unwind_protect::run_all; |
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199 octave_bad_alloc_hook = unwind_protect::run_all; |
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200 |
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2554
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201 octave_catch_interrupts (); |
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1907
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202 |
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4172
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203 octave_initialized = true; |
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204 |
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1907
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205 // The big loop. |
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206 |
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4153
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207 int retval = 0; |
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1907
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208 do |
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209 { |
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4180
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210 try |
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1907
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211 { |
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4153
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212 curr_sym_tab = top_level_sym_tab; |
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2620
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213 |
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4318
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214 reset_error_handler (); |
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215 |
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4153
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216 reset_parser (); |
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2620
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217 |
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4753
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218 // This is the same as yyparse in parse.y. |
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219 retval = octave_parse (); |
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2620
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220 |
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4153
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221 if (retval == 0) |
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222 { |
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223 if (global_command) |
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3804
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224 { |
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4153
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225 global_command->eval (); |
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3883
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226 |
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4153
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227 delete global_command; |
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3883
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228 |
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4153
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229 global_command = 0; |
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3883
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230 |
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4171
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231 OCTAVE_QUIT; |
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232 |
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3883
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233 if (! (interactive || forced_interactive)) |
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234 { |
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4207
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235 bool quit = (tree_return_command::returning |
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236 || tree_break_command::breaking); |
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4153
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237 |
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4207
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238 if (tree_return_command::returning) |
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239 tree_return_command::returning = 0; |
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4153
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240 |
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4207
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241 if (tree_break_command::breaking) |
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242 tree_break_command::breaking--; |
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4153
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243 |
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244 if (quit) |
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245 break; |
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246 } |
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247 |
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248 if (error_state) |
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249 { |
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250 if (! (interactive || forced_interactive)) |
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251 { |
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252 // We should exit with a non-zero status. |
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253 retval = 1; |
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254 break; |
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255 } |
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256 } |
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257 else |
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258 { |
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259 if (octave_completion_matches_called) |
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260 octave_completion_matches_called = false; |
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261 else |
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262 command_editor::increment_current_command_number (); |
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3883
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263 } |
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264 } |
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4153
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265 else if (parser_end_of_input) |
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266 break; |
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2620
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267 } |
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4153
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268 } |
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4182
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269 catch (octave_interrupt_exception) |
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4153
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270 { |
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4180
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271 recover_from_exception (); |
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5629
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272 octave_stdout << "\n"; |
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4180
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273 } |
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4181
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274 catch (std::bad_alloc) |
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4180
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275 { |
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276 recover_from_exception (); |
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277 std::cerr |
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278 << "error: memory exhausted -- trying to return to prompt\n"; |
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1907
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279 } |
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280 } |
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281 while (retval == 0); |
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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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1683
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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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3162
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289 clean_up_and_exit (int retval) |
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290 { |
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3216
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291 do_octave_atexit (); |
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1683
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292 |
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5451
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293 sysdep_cleanup (); |
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294 |
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3162
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295 exit (retval == EOF ? 0 : retval); |
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1683
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296 } |
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297 |
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4208
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298 DEFCMD (casesen, args, , |
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3446
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299 "-*- texinfo -*-\n\ |
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300 @deffn {Command} casesen arg\n\ |
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301 Provided for compatibility with Matlab, but does nothing.\n\ |
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302 @end deffn") |
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1683
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303 { |
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2086
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304 octave_value_list retval; |
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1683
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305 |
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1755
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306 int argc = args.length () + 1; |
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307 |
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1965
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308 string_vector argv = args.make_argv ("casesen"); |
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1683
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309 |
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1755
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310 if (error_state) |
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311 return retval; |
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312 |
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313 if (argc == 1 || (argc > 1 && argv[1] == "off")) |
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1683
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314 warning ("casesen: sorry, Octave is always case sensitive"); |
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1755
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315 else if (argc > 1 && argv[1] == "on") |
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1683
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316 ; // ok. |
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317 else |
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5823
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318 print_usage (); |
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1683
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319 |
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320 return retval; |
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321 } |
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322 |
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3180
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323 DEFUN (quit, args, nargout, |
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3332
|
324 "-*- texinfo -*-\n\ |
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325 @deftypefn {Built-in Function} {} exit (@var{status})\n\ |
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326 @deftypefnx {Built-in Function} {} quit (@var{status})\n\ |
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327 Exit the current Octave session. If the optional integer value\n\ |
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328 @var{status} is supplied, pass that value to the operating system as the\n\ |
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329 Octave's exit status.\n\ |
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3333
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330 @end deftypefn") |
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1683
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331 { |
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2086
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332 octave_value_list retval; |
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2068
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333 |
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3180
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334 if (nargout == 0) |
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2068
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335 { |
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3180
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336 int exit_status = 0; |
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337 |
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338 quitting_gracefully = true; |
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1683
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339 |
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3180
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340 if (args.length () > 0) |
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341 { |
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3202
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342 int tmp = args(0).nint_value (); |
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1683
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343 |
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3202
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344 if (! error_state) |
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345 exit_status = tmp; |
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3180
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346 } |
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347 |
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348 clean_up_and_exit (exit_status); |
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2068
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349 } |
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3180
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350 else |
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351 error ("quit: invalid number of output arguments"); |
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2068
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352 |
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1683
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353 return retval; |
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354 } |
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355 |
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356 DEFALIAS (exit, quit); |
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357 |
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1957
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358 DEFUN (warranty, , , |
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3446
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359 "-*- texinfo -*-\n\ |
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360 @deftypefn {Built-in Function} {} warranty ()\n\ |
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361 Describe the conditions for copying and distributing Octave.\n\ |
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362 @end deftypefn") |
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1683
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363 { |
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2086
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364 octave_value_list retval; |
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1683
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365 |
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3922
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366 octave_stdout << "\n" \ |
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367 OCTAVE_NAME_VERSION_AND_COPYRIGHT "\n\ |
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368 \n\ |
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1683
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369 This program is free software; you can redistribute it and/or modify\n\ |
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370 it under the terms of the GNU General Public License as published by\n\ |
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371 the Free Software Foundation; either version 2 of the License, or\n\ |
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372 (at your option) any later version.\n\ |
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373 \n\ |
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374 This program is distributed in the hope that it will be useful,\n\ |
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375 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\ |
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376 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\ |
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377 GNU General Public License for more details.\n\ |
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378 \n\ |
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379 You should have received a copy of the GNU General Public License\n\ |
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380 along with this program. If not, write to the Free Software\n\ |
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5307
|
381 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA\n\ |
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382 02110-1301, USA.\n\ |
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1683
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383 \n"; |
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384 |
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385 return retval; |
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386 } |
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387 |
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388 // Execute a shell command. |
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389 |
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1965
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390 static void |
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391 cleanup_iprocstream (void *p) |
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392 { |
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3060
|
393 iprocstream *cmd = static_cast<iprocstream *> (p); |
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394 |
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395 octave_child_list::remove (cmd->pid ()); |
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396 |
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397 delete cmd; |
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1965
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398 } |
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399 |
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6316
|
400 static int |
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401 wait_for_input (int fid) |
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402 { |
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403 int retval = -1; |
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404 |
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405 #if defined (HAVE_SELECT) |
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|
406 if (fid >= 0) |
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|
407 { |
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408 fd_set set; |
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409 |
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410 FD_ZERO (&set); |
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411 FD_SET (fid, &set); |
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412 |
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413 retval = select (FD_SETSIZE, &set, 0, 0, 0); |
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|
414 } |
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415 #else |
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416 retval = 1; |
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417 #endif |
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418 |
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419 return retval; |
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420 } |
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|
421 |
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2086
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422 static octave_value_list |
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3523
|
423 run_command_and_return_output (const std::string& cmd_str) |
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2083
|
424 { |
|
2086
|
425 octave_value_list retval; |
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2083
|
426 |
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427 iprocstream *cmd = new iprocstream (cmd_str.c_str ()); |
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428 |
|
3060
|
429 if (cmd) |
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2083
|
430 { |
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3060
|
431 unwind_protect::add (cleanup_iprocstream, cmd); |
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432 |
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433 if (*cmd) |
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434 { |
|
6316
|
435 int fid = cmd->file_number (); |
|
2095
|
436 |
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6316
|
437 std::ostringstream output_buf; |
|
4494
|
438 |
|
3060
|
439 char ch; |
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3147
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440 |
|
4489
|
441 for (;;) |
|
3147
|
442 { |
|
4489
|
443 if (cmd->get (ch)) |
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444 output_buf.put (ch); |
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445 else |
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446 { |
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|
447 if (! cmd->eof () && errno == EAGAIN) |
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448 { |
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449 cmd->clear (); |
|
3147
|
450 |
|
6316
|
451 if (wait_for_input (fid) != 1) |
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452 break; |
|
4489
|
453 } |
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454 else |
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455 break; |
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|
456 } |
|
3147
|
457 } |
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|
458 |
|
3252
|
459 int cmd_status = cmd->close (); |
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2083
|
460 |
|
3060
|
461 if (WIFEXITED (cmd_status)) |
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|
462 cmd_status = WEXITSTATUS (cmd_status); |
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|
463 else |
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|
464 cmd_status = 127; |
|
2083
|
465 |
|
5659
|
466 retval(0) = (double) cmd_status; |
|
5765
|
467 retval(1) = output_buf.str (); |
|
3060
|
468 } |
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|
469 |
|
|
470 unwind_protect::run (); |
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2083
|
471 } |
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|
472 else |
|
|
473 error ("unable to start subprocess for `%s'", cmd_str.c_str ()); |
|
|
474 |
|
|
475 return retval; |
|
|
476 } |
|
|
477 |
|
5285
|
478 enum system_exec_type { et_sync, et_async }; |
|
|
479 |
|
1957
|
480 DEFUN (system, args, nargout, |
|
3301
|
481 "-*- texinfo -*-\n\ |
|
|
482 @deftypefn {Built-in Function} {} system (@var{string}, @var{return_output}, @var{type})\n\ |
|
|
483 Execute a shell command specified by @var{string}. The second\n\ |
|
|
484 argument is optional. If @var{type} is @code{\"async\"}, the process\n\ |
|
|
485 is started in the background and the process id of the child process\n\ |
|
|
486 is returned immediately. Otherwise, the process is started, and\n\ |
|
|
487 Octave waits until it exits. If @var{type} argument is omitted, a\n\ |
|
|
488 value of @code{\"sync\"} is assumed.\n\ |
|
2083
|
489 \n\ |
|
3301
|
490 If two input arguments are given (the actual value of\n\ |
|
|
491 @var{return_output} is irrelevant) and the subprocess is started\n\ |
|
|
492 synchronously, or if @var{system} is called with one input argument and\n\ |
|
|
493 one or more output arguments, the output from the command is returned.\n\ |
|
5097
|
494 Otherwise, if the subprocess is executed synchronously, its output is\n\ |
|
2321
|
495 sent to the standard output. To send the output of a command executed\n\ |
|
3301
|
496 with @var{system} through the pager, use a command like\n\ |
|
2321
|
497 \n\ |
|
3301
|
498 @example\n\ |
|
|
499 disp (system (cmd, 1));\n\ |
|
|
500 @end example\n\ |
|
2321
|
501 \n\ |
|
3301
|
502 @noindent\n\ |
|
2321
|
503 or\n\ |
|
|
504 \n\ |
|
3301
|
505 @example\n\ |
|
|
506 printf (\"%s\n\", system (cmd, 1));\n\ |
|
|
507 @end example\n\ |
|
|
508 \n\ |
|
5659
|
509 The @code{system} function can return two values. The first is the\n\ |
|
|
510 exit status of the command and the second is any output from the\n\ |
|
|
511 command that was written to the standard output stream. For example,\n\ |
|
3301
|
512 \n\ |
|
|
513 @example\n\ |
|
5717
|
514 [status, output] = system (\"echo foo; exit 2\");\n\ |
|
3301
|
515 @end example\n\ |
|
|
516 \n\ |
|
|
517 @noindent\n\ |
|
|
518 will set the variable @code{output} to the string @samp{foo}, and the\n\ |
|
|
519 variable @code{status} to the integer @samp{2}.\n\ |
|
|
520 @end deftypefn") |
|
1683
|
521 { |
|
2086
|
522 octave_value_list retval; |
|
1683
|
523 |
|
3834
|
524 unwind_protect::begin_frame ("Fsystem"); |
|
|
525 |
|
1683
|
526 int nargin = args.length (); |
|
|
527 |
|
2083
|
528 if (nargin > 0 && nargin < 4) |
|
1683
|
529 { |
|
5672
|
530 bool return_output = (nargout > 1 || nargin > 1); |
|
2083
|
531 |
|
3523
|
532 std::string cmd_str = args(0).string_value (); |
|
2083
|
533 |
|
5285
|
534 system_exec_type type = et_sync; |
|
2083
|
535 |
|
|
536 if (! error_state) |
|
|
537 { |
|
|
538 if (nargin > 2) |
|
|
539 { |
|
3523
|
540 std::string type_str = args(2).string_value (); |
|
1683
|
541 |
|
2083
|
542 if (! error_state) |
|
|
543 { |
|
|
544 if (type_str == "sync") |
|
5285
|
545 type = et_sync; |
|
2083
|
546 else if (type_str == "async") |
|
5285
|
547 type = et_async; |
|
2083
|
548 else |
|
|
549 error ("system: third arg must be \"sync\" or \"async\""); |
|
|
550 } |
|
|
551 else |
|
|
552 error ("system: third argument must be a string"); |
|
|
553 } |
|
|
554 } |
|
|
555 else |
|
3523
|
556 error ("system: expecting std::string as first argument"); |
|
1683
|
557 |
|
2083
|
558 if (! error_state) |
|
|
559 { |
|
5285
|
560 if (type == et_async) |
|
2083
|
561 { |
|
6222
|
562 // FIXME -- maybe this should go in sysdep.cc? |
|
4086
|
563 #ifdef HAVE_FORK |
|
2083
|
564 pid_t pid = fork (); |
|
|
565 |
|
|
566 if (pid < 0) |
|
|
567 error ("system: fork failed -- can't create child process"); |
|
|
568 else if (pid == 0) |
|
|
569 { |
|
5775
|
570 // FIXME -- should probably replace this |
|
3273
|
571 // call with something portable. |
|
|
572 |
|
5510
|
573 execl ("/bin/sh", "sh", "-c", cmd_str.c_str (), |
|
|
574 static_cast<void *> (0)); |
|
3273
|
575 |
|
|
576 panic_impossible (); |
|
2083
|
577 } |
|
|
578 else |
|
4254
|
579 retval(0) = pid; |
|
6222
|
580 #elif defined (__WIN32__) |
|
|
581 STARTUPINFO si; |
|
|
582 PROCESS_INFORMATION pi; |
|
|
583 ZeroMemory (&si, sizeof (si)); |
|
|
584 ZeroMemory (&pi, sizeof (pi)); |
|
|
585 OCTAVE_LOCAL_BUFFER (char, xcmd_str, cmd_str.length()+1); |
|
|
586 strcpy (xcmd_str, cmd_str.c_str ()) |
|
|
587 |
|
|
588 if (! CreateProcess (0, xcmd_str, 0, 0, FALSE, 0, 0, 0, &si, &pi)) |
|
|
589 error ("system: CreateProcess failed -- can't create child process"); |
|
|
590 else |
|
|
591 { |
|
|
592 retval(0) = pi.dwProcessId; |
|
|
593 CloseHandle (pi.hProcess); |
|
|
594 CloseHandle (pi.hThread); |
|
|
595 } |
|
4086
|
596 #else |
|
|
597 error ("asynchronous system calls are not supported"); |
|
|
598 #endif |
|
2083
|
599 } |
|
2321
|
600 else if (return_output) |
|
|
601 retval = run_command_and_return_output (cmd_str); |
|
2083
|
602 else |
|
2321
|
603 { |
|
|
604 int status = system (cmd_str.c_str ()); |
|
|
605 |
|
|
606 // The value in status is as returned by waitpid. If |
|
|
607 // the process exited normally, extract the actual exit |
|
|
608 // status of the command. Otherwise, return 127 as a |
|
|
609 // failure code. |
|
|
610 |
|
2693
|
611 if (WIFEXITED (status)) |
|
|
612 status = WEXITSTATUS (status); |
|
2321
|
613 |
|
4233
|
614 retval(0) = status; |
|
2321
|
615 } |
|
2083
|
616 } |
|
1683
|
617 } |
|
|
618 else |
|
5823
|
619 print_usage (); |
|
1683
|
620 |
|
3834
|
621 unwind_protect::run_frame ("Fsystem"); |
|
|
622 |
|
1683
|
623 return retval; |
|
|
624 } |
|
|
625 |
|
|
626 DEFALIAS (shell_cmd, system); |
|
|
627 |
|
5775
|
628 // FIXME -- this should really be static, but that causes |
|
2614
|
629 // problems on some systems. |
|
4214
|
630 std::stack<std::string> octave_atexit_functions; |
|
2077
|
631 |
|
|
632 void |
|
|
633 do_octave_atexit (void) |
|
|
634 { |
|
3216
|
635 static bool deja_vu = false; |
|
|
636 |
|
2077
|
637 while (! octave_atexit_functions.empty ()) |
|
|
638 { |
|
4233
|
639 std::string fcn = octave_atexit_functions.top (); |
|
4214
|
640 |
|
|
641 octave_atexit_functions.pop (); |
|
2077
|
642 |
|
5237
|
643 reset_error_handler (); |
|
|
644 |
|
4233
|
645 feval (fcn, octave_value_list (), 0); |
|
3215
|
646 |
|
|
647 flush_octave_stdout (); |
|
2077
|
648 } |
|
3216
|
649 |
|
|
650 if (! deja_vu) |
|
|
651 { |
|
|
652 deja_vu = true; |
|
|
653 |
|
6068
|
654 // Do this explicitly so that destructors for mex file objects |
|
|
655 // are called, so that functions registered with mexAtExit are |
|
|
656 // called. |
|
6072
|
657 clear_mex_functions (); |
|
6068
|
658 |
|
3216
|
659 command_editor::restore_terminal_state (); |
|
|
660 |
|
5775
|
661 // FIXME -- is this needed? Can it cause any trouble? |
|
3216
|
662 raw_mode (0); |
|
|
663 |
|
5305
|
664 octave_history_write_timestamp (); |
|
|
665 |
|
3216
|
666 command_history::clean_up_and_save (); |
|
|
667 |
|
|
668 close_files (); |
|
|
669 |
|
|
670 cleanup_tmp_files (); |
|
|
671 |
|
|
672 flush_octave_stdout (); |
|
|
673 |
|
5305
|
674 if (! quitting_gracefully && (interactive || forced_interactive)) |
|
5629
|
675 { |
|
|
676 octave_stdout << "\n"; |
|
|
677 |
|
|
678 // Yes, we want this to be separate from the call to |
|
|
679 // flush_octave_stdout above. |
|
|
680 |
|
|
681 flush_octave_stdout (); |
|
|
682 } |
|
3216
|
683 } |
|
2077
|
684 } |
|
|
685 |
|
2162
|
686 DEFUN (atexit, args, , |
|
3332
|
687 "-*- texinfo -*-\n\ |
|
|
688 @deftypefn {Built-in Function} {} atexit (@var{fcn})\n\ |
|
|
689 Register a function to be called when Octave exits. For example,\n\ |
|
2077
|
690 \n\ |
|
3332
|
691 @example\n\ |
|
|
692 @group\n\ |
|
3686
|
693 function print_fortune ()\n\ |
|
3332
|
694 printf (\"\\n%s\\n\", system (\"fortune\"));\n\ |
|
|
695 fflush (stdout);\n\ |
|
|
696 endfunction\n\ |
|
3686
|
697 atexit (\"print_fortune\");\n\ |
|
3332
|
698 @end group\n\ |
|
|
699 @end example\n\ |
|
|
700 \n\ |
|
|
701 @noindent\n\ |
|
|
702 will print a message when Octave exits.\n\ |
|
3333
|
703 @end deftypefn") |
|
2077
|
704 { |
|
2086
|
705 octave_value_list retval; |
|
2077
|
706 |
|
|
707 int nargin = args.length (); |
|
|
708 |
|
|
709 if (nargin == 1) |
|
|
710 { |
|
3523
|
711 std::string arg = args(0).string_value (); |
|
2077
|
712 |
|
|
713 if (! error_state) |
|
|
714 octave_atexit_functions.push (arg); |
|
|
715 else |
|
|
716 error ("atexit: argument must be a string"); |
|
|
717 } |
|
|
718 else |
|
5823
|
719 print_usage (); |
|
2077
|
720 |
|
|
721 return retval; |
|
|
722 } |
|
|
723 |
|
2689
|
724 DEFUN (octave_config_info, args, , |
|
3301
|
725 "-*- texinfo -*-\n\ |
|
|
726 @deftypefn {Built-in Function} {} octave_config_info (@var{option})\n\ |
|
|
727 Return a structure containing configuration and installation\n\ |
|
|
728 information for Octave.\n\ |
|
2689
|
729 \n\ |
|
3301
|
730 if @var{option} is a string, return the configuration information for the\n\ |
|
2689
|
731 specified option.\n\ |
|
|
732 \n\ |
|
3301
|
733 @end deftypefn") |
|
2162
|
734 { |
|
2689
|
735 octave_value retval; |
|
|
736 |
|
4128
|
737 #if defined (ENABLE_DYNAMIC_LINKING) |
|
2689
|
738 bool octave_supports_dynamic_linking = true; |
|
|
739 #else |
|
|
740 bool octave_supports_dynamic_linking = false; |
|
|
741 #endif |
|
|
742 |
|
4357
|
743 static bool initialized = false; |
|
|
744 static Octave_map m; |
|
2162
|
745 |
|
6274
|
746 struct conf_info_struct |
|
|
747 { |
|
|
748 bool subst_home; |
|
|
749 const char *key; |
|
|
750 const char *val; |
|
|
751 }; |
|
|
752 |
|
|
753 static const conf_info_struct conf_info[] = |
|
4357
|
754 { |
|
6274
|
755 { false, "ALL_CFLAGS", OCTAVE_CONF_ALL_CFLAGS }, |
|
|
756 { false, "ALL_CXXFLAGS", OCTAVE_CONF_ALL_CXXFLAGS }, |
|
|
757 { false, "ALL_FFLAGS", OCTAVE_CONF_ALL_FFLAGS }, |
|
|
758 { false, "ALL_LDFLAGS", OCTAVE_CONF_ALL_LDFLAGS }, |
|
|
759 { false, "AR", OCTAVE_CONF_AR }, |
|
|
760 { false, "ARFLAGS", OCTAVE_CONF_ARFLAGS }, |
|
|
761 { false, "BLAS_LIBS", OCTAVE_CONF_BLAS_LIBS }, |
|
|
762 { false, "CC", OCTAVE_CONF_CC }, |
|
|
763 { false, "CC_VERSION", OCTAVE_CONF_CC_VERSION }, |
|
|
764 { false, "CFLAGS", OCTAVE_CONF_CFLAGS }, |
|
|
765 { false, "CPICFLAG", OCTAVE_CONF_CPICFLAG }, |
|
|
766 { false, "CPPFLAGS", OCTAVE_CONF_CPPFLAGS }, |
|
|
767 { false, "CURL_LIBS", OCTAVE_CONF_CURL_LIBS }, |
|
|
768 { false, "CXX", OCTAVE_CONF_CXX }, |
|
|
769 { false, "CXXCPP", OCTAVE_CONF_CXXCPP }, |
|
|
770 { false, "CXXFLAGS", OCTAVE_CONF_CXXFLAGS }, |
|
|
771 { false, "CXXPICFLAG", OCTAVE_CONF_CXXPICFLAG }, |
|
|
772 { false, "CXX_VERSION", OCTAVE_CONF_CXX_VERSION }, |
|
|
773 { false, "DEFAULT_PAGER", OCTAVE_DEFAULT_PAGER }, |
|
|
774 { false, "DEFS", OCTAVE_CONF_DEFS }, |
|
|
775 { false, "DLFCN_INCFLAGS", OCTAVE_CONF_DLFCN_INCFLAGS }, |
|
|
776 { false, "DL_LD", OCTAVE_CONF_DL_LD }, |
|
|
777 { false, "DL_LDFLAGS", OCTAVE_CONF_DL_LDFLAGS }, |
|
|
778 { false, "ENABLE_DYNAMIC_LINKING", OCTAVE_CONF_ENABLE_DYNAMIC_LINKING }, |
|
|
779 { false, "EXEEXT", OCTAVE_CONF_EXEEXT }, |
|
|
780 { false, "F2C", OCTAVE_CONF_F2C }, |
|
|
781 { false, "F2CFLAGS", OCTAVE_CONF_F2CFLAGS }, |
|
|
782 { false, "F77", OCTAVE_CONF_F77 }, |
|
|
783 { false, "F77_FLOAT_STORE_FLAG", OCTAVE_CONF_F77_FLOAT_STORE_FLAG }, |
|
|
784 { false, "FC", OCTAVE_CONF_FC }, |
|
|
785 { false, "FFLAGS", OCTAVE_CONF_FFLAGS }, |
|
|
786 { false, "FFTW_LIBS", OCTAVE_CONF_FFTW_LIBS }, |
|
|
787 { false, "FLIBS", OCTAVE_CONF_FLIBS }, |
|
|
788 { false, "FPICFLAG", OCTAVE_CONF_FPICFLAG }, |
|
|
789 { false, "GLPK_LIBS", OCTAVE_CONF_GLPK_LIBS }, |
|
|
790 { false, "INCFLAGS", OCTAVE_CONF_INCFLAGS }, |
|
|
791 { false, "LDFLAGS", OCTAVE_CONF_LDFLAGS }, |
|
|
792 { false, "LD_CXX", OCTAVE_CONF_LD_CXX }, |
|
|
793 { false, "LD_STATIC_FLAG", OCTAVE_CONF_LD_STATIC_FLAG }, |
|
|
794 { false, "LEX", OCTAVE_CONF_LEX }, |
|
|
795 { false, "LEXLIB", OCTAVE_CONF_LEXLIB }, |
|
|
796 { false, "LFLAGS", OCTAVE_CONF_LFLAGS }, |
|
|
797 { false, "LIBCRUFT", OCTAVE_CONF_LIBCRUFT }, |
|
|
798 { false, "LIBDLFCN", OCTAVE_CONF_LIBDLFCN }, |
|
|
799 { false, "LIBEXT", OCTAVE_CONF_LIBEXT }, |
|
|
800 { false, "LIBFLAGS", OCTAVE_CONF_LIBFLAGS }, |
|
|
801 { false, "LIBOCTAVE", OCTAVE_CONF_LIBOCTAVE }, |
|
|
802 { false, "LIBOCTINTERP", OCTAVE_CONF_LIBOCTINTERP }, |
|
|
803 { false, "LIBREADLINE", OCTAVE_CONF_LIBREADLINE }, |
|
|
804 { false, "LIBS", OCTAVE_CONF_LIBS }, |
|
|
805 { false, "LN_S", OCTAVE_CONF_LN_S }, |
|
|
806 { false, "MKOCTFILE_DL_LDFLAGS", OCTAVE_CONF_MKOCTFILE_DL_LDFLAGS }, |
|
|
807 { false, "RANLIB", OCTAVE_CONF_RANLIB }, |
|
|
808 { false, "RDYNAMIC_FLAG", OCTAVE_CONF_RDYNAMIC_FLAG }, |
|
|
809 { false, "RLD_FLAG", OCTAVE_CONF_RLD_FLAG }, |
|
|
810 { false, "RUNTEST", OCTAVE_CONF_RUNTEST }, |
|
|
811 { false, "SED", OCTAVE_CONF_SED }, |
|
|
812 { false, "SHARED_LIBS", OCTAVE_CONF_SHARED_LIBS }, |
|
|
813 { false, "SHLEXT", OCTAVE_CONF_SHLEXT }, |
|
|
814 { false, "SHLEXT_VER", OCTAVE_CONF_SHLEXT_VER }, |
|
|
815 { false, "SH_LD", OCTAVE_CONF_SH_LD }, |
|
|
816 { false, "SH_LDFLAGS", OCTAVE_CONF_SH_LDFLAGS }, |
|
|
817 { false, "SONAME_FLAGS", OCTAVE_CONF_SONAME_FLAGS }, |
|
|
818 { false, "STATIC_LIBS", OCTAVE_CONF_STATIC_LIBS }, |
|
|
819 { false, "UGLY_DEFS", OCTAVE_CONF_UGLY_DEFS }, |
|
|
820 { false, "USE_64_BIT_IDX_T", OCTAVE_CONF_USE_64_BIT_IDX_T }, |
|
|
821 { false, "XTRA_CFLAGS", OCTAVE_CONF_XTRA_CFLAGS }, |
|
|
822 { false, "XTRA_CXXFLAGS", OCTAVE_CONF_XTRA_CXXFLAGS }, |
|
|
823 { false, "YACC", OCTAVE_CONF_YACC }, |
|
|
824 { false, "YFLAGS", OCTAVE_CONF_YFLAGS }, |
|
|
825 { false, "api_version", OCTAVE_API_VERSION }, |
|
|
826 { true, "archlibdir", OCTAVE_ARCHLIBDIR }, |
|
|
827 { true, "bindir", OCTAVE_BINDIR }, |
|
|
828 { false, "canonical_host_type", OCTAVE_CANONICAL_HOST_TYPE }, |
|
|
829 { false, "config_opts", OCTAVE_CONF_config_opts }, |
|
|
830 { true, "datadir", OCTAVE_DATADIR }, |
|
|
831 { true, "datarootdir", OCTAVE_DATAROOTDIR }, |
|
6276
|
832 { true, "exec_prefix", OCTAVE_EXEC_PREFIX }, |
|
6274
|
833 { true, "fcnfiledir", OCTAVE_FCNFILEDIR }, |
|
|
834 { true, "imagedir", OCTAVE_IMAGEDIR }, |
|
|
835 { true, "includedir", OCTAVE_INCLUDEDIR }, |
|
|
836 { true, "infodir", OCTAVE_INFODIR }, |
|
6276
|
837 { true, "infofile", OCTAVE_INFOFILE }, |
|
6274
|
838 { true, "libdir", OCTAVE_LIBDIR }, |
|
|
839 { true, "libexecdir", OCTAVE_LIBEXECDIR }, |
|
6311
|
840 { true, "localapiarchlibdir", OCTAVE_LOCALAPIARCHLIBDIR }, |
|
6274
|
841 { true, "localapifcnfiledir", OCTAVE_LOCALAPIFCNFILEDIR }, |
|
|
842 { true, "localapioctfiledir", OCTAVE_LOCALAPIOCTFILEDIR }, |
|
|
843 { true, "localarchlibdir", OCTAVE_LOCALARCHLIBDIR }, |
|
|
844 { true, "localfcnfiledir", OCTAVE_LOCALFCNFILEDIR }, |
|
|
845 { true, "localoctfiledir", OCTAVE_LOCALOCTFILEDIR }, |
|
|
846 { true, "localstartupfiledir", OCTAVE_LOCALSTARTUPFILEDIR }, |
|
|
847 { true, "localverarchlibdir", OCTAVE_LOCALVERARCHLIBDIR }, |
|
|
848 { true, "localverfcnfiledir", OCTAVE_LOCALVERFCNFILEDIR }, |
|
|
849 { true, "localveroctfiledir", OCTAVE_LOCALVEROCTFILEDIR }, |
|
|
850 { true, "man1dir", OCTAVE_MAN1DIR }, |
|
|
851 { false, "man1ext", OCTAVE_MAN1EXT }, |
|
|
852 { true, "mandir", OCTAVE_MANDIR }, |
|
|
853 { true, "octfiledir", OCTAVE_OCTFILEDIR }, |
|
|
854 { true, "octincludedir", OCTAVE_OCTINCLUDEDIR }, |
|
|
855 { true, "octlibdir", OCTAVE_OCTLIBDIR }, |
|
6276
|
856 { true, "prefix", OCTAVE_PREFIX }, |
|
6274
|
857 { true, "startupfiledir", OCTAVE_STARTUPFILEDIR }, |
|
|
858 { false, "version", OCTAVE_VERSION }, |
|
|
859 { false, 0, 0 } |
|
4357
|
860 }; |
|
|
861 |
|
|
862 if (! initialized) |
|
|
863 { |
|
4675
|
864 m.assign ("dld", octave_value (octave_supports_dynamic_linking)); |
|
4357
|
865 |
|
4697
|
866 oct_mach_info::float_format ff = oct_mach_info::native_float_format (); |
|
|
867 m.assign ("float_format", |
|
|
868 octave_value (oct_mach_info::float_format_as_string (ff))); |
|
|
869 |
|
|
870 m.assign ("words_big_endian", |
|
|
871 octave_value (oct_mach_info::words_big_endian ())); |
|
|
872 |
|
|
873 m.assign ("words_little_endian", |
|
|
874 octave_value (oct_mach_info::words_little_endian ())); |
|
|
875 |
|
4357
|
876 int i = 0; |
|
4440
|
877 |
|
|
878 while (true) |
|
4357
|
879 { |
|
6274
|
880 const conf_info_struct& elt = conf_info[i++]; |
|
|
881 |
|
|
882 const char *key = elt.key; |
|
4357
|
883 |
|
|
884 if (key) |
|
6274
|
885 { |
|
|
886 if (elt.subst_home) |
|
|
887 m.assign (key, octave_value (subst_octave_home (elt.val))); |
|
|
888 else |
|
|
889 m.assign (key, octave_value (elt.val)); |
|
|
890 } |
|
4357
|
891 else |
|
|
892 break; |
|
|
893 } |
|
|
894 |
|
4691
|
895 bool unix_system = true; |
|
|
896 bool windows_system = false; |
|
|
897 |
|
|
898 #if defined (WIN32) |
|
|
899 windows_system = true; |
|
|
900 #if !defined (__CYGWIN__) |
|
|
901 unix_system = false; |
|
|
902 #endif |
|
|
903 #endif |
|
|
904 |
|
|
905 m.assign ("unix", octave_value (unix_system)); |
|
|
906 m.assign ("windows", octave_value (windows_system)); |
|
|
907 |
|
4357
|
908 initialized = true; |
|
|
909 } |
|
2162
|
910 |
|
2689
|
911 int nargin = args.length (); |
|
|
912 |
|
|
913 if (nargin == 1) |
|
|
914 { |
|
3523
|
915 std::string arg = args(0).string_value (); |
|
2689
|
916 |
|
|
917 if (! error_state) |
|
4675
|
918 { |
|
|
919 Cell c = m.contents (arg.c_str ()); |
|
5199
|
920 |
|
|
921 if (c.is_empty ()) |
|
|
922 error ("octave_config_info: no info for `%s'", arg.c_str ()); |
|
|
923 else |
|
|
924 retval = c(0); |
|
4675
|
925 } |
|
2689
|
926 } |
|
|
927 else if (nargin == 0) |
|
4233
|
928 retval = m; |
|
2689
|
929 else |
|
5823
|
930 print_usage (); |
|
2689
|
931 |
|
|
932 return retval; |
|
2162
|
933 } |
|
|
934 |
|
1683
|
935 #if defined (__GNUG__) && defined (DEBUG_NEW_DELETE) |
|
2806
|
936 |
|
1683
|
937 int debug_new_delete = 0; |
|
|
938 |
|
|
939 typedef void (*vfp)(void); |
|
|
940 extern vfp __new_handler; |
|
|
941 |
|
|
942 void * |
|
|
943 __builtin_new (size_t sz) |
|
|
944 { |
|
|
945 void *p; |
|
|
946 |
|
|
947 /* malloc (0) is unpredictable; avoid it. */ |
|
|
948 if (sz == 0) |
|
|
949 sz = 1; |
|
2800
|
950 p = malloc (sz); |
|
1683
|
951 while (p == 0) |
|
|
952 { |
|
|
953 (*__new_handler) (); |
|
2800
|
954 p = malloc (sz); |
|
1683
|
955 } |
|
|
956 |
|
|
957 if (debug_new_delete) |
|
5629
|
958 std::cerr << "__builtin_new: " << p << std::endl; |
|
1683
|
959 |
|
|
960 return p; |
|
|
961 } |
|
|
962 |
|
|
963 void |
|
|
964 __builtin_delete (void *ptr) |
|
|
965 { |
|
|
966 if (debug_new_delete) |
|
5629
|
967 std::cerr << "__builtin_delete: " << ptr << std::endl; |
|
1683
|
968 |
|
|
969 if (ptr) |
|
|
970 free (ptr); |
|
|
971 } |
|
2806
|
972 |
|
1683
|
973 #endif |
|
|
974 |
|
|
975 /* |
|
|
976 ;;; Local Variables: *** |
|
|
977 ;;; mode: C++ *** |
|
|
978 ;;; End: *** |
|
|
979 */ |
