Mercurial > octave
annotate src/toplev.cc @ 9452:deb668d53e60
toplev.cc: handle exceptions while preparing to exit
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Thu, 23 Jul 2009 14:24:45 -0400 |
| parents | 17af7cce7d1b |
| children | 25c2e92ee03c |
| rev | line source |
|---|---|
| 1683 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
| 8920 | 4 2004, 2005, 2006, 2007, 2008, 2009 John W. Eaton |
| 1683 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 1683 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 1683 | 21 |
| 22 */ | |
| 23 | |
| 24 #ifdef HAVE_CONFIG_H | |
| 25 #include <config.h> | |
| 26 #endif | |
| 27 | |
| 28 #include <cassert> | |
| 4489 | 29 #include <cerrno> |
| 1683 | 30 #include <cstdlib> |
| 31 #include <cstring> | |
| 4221 | 32 #include <new> |
| 1683 | 33 |
| 3503 | 34 #include <fstream> |
| 35 #include <iostream> | |
| 5765 | 36 #include <sstream> |
| 1728 | 37 #include <string> |
| 38 | |
| 1683 | 39 #ifdef HAVE_UNISTD_H |
| 2442 | 40 #ifdef HAVE_SYS_TYPES_H |
| 1683 | 41 #include <sys/types.h> |
| 2442 | 42 #endif |
| 1683 | 43 #include <unistd.h> |
| 44 #endif | |
| 45 | |
| 2926 | 46 #include "cmd-edit.h" |
| 47 #include "file-ops.h" | |
| 1683 | 48 #include "lo-error.h" |
| 2370 | 49 #include "lo-mappers.h" |
| 3020 | 50 #include "oct-env.h" |
| 4153 | 51 #include "quit.h" |
| 1755 | 52 #include "str-vec.h" |
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53 #include "oct-locbuf.h" |
| 1683 | 54 |
| 2492 | 55 #include <defaults.h> |
| 1683 | 56 #include "defun.h" |
| 57 #include "error.h" | |
| 58 #include "file-io.h" | |
| 59 #include "input.h" | |
| 60 #include "lex.h" | |
| 2492 | 61 #include <oct-conf.h> |
| 1742 | 62 #include "oct-hist.h" |
| 2162 | 63 #include "oct-map.h" |
| 2862 | 64 #include "oct-obj.h" |
| 1683 | 65 #include "pager.h" |
| 66 #include "parse.h" | |
| 67 #include "pathsearch.h" | |
| 68 #include "procstream.h" | |
| 2370 | 69 #include "ov.h" |
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70 #include "pt-eval.h" |
| 2985 | 71 #include "pt-jump.h" |
| 2982 | 72 #include "pt-stmt.h" |
| 1683 | 73 #include "sighandlers.h" |
| 74 #include "sysdep.h" | |
| 2693 | 75 #include "syswait.h" |
| 1750 | 76 #include "toplev.h" |
| 1683 | 77 #include "unwind-prot.h" |
| 78 #include "utils.h" | |
| 79 #include "variables.h" | |
| 2492 | 80 #include <version.h> |
| 1683 | 81 |
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82 void (*octave_exit) (int) = ::exit; |
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83 |
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84 // TRUE means the quit() call is allowed. |
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85 bool quit_allowed = true; |
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86 |
| 3020 | 87 // TRUE means we are exiting via the builtin exit or quit functions. |
| 9383 | 88 bool quitting_gracefully = false; |
| 89 // This stores the exit status. | |
| 90 int exit_status = 0; | |
| 1683 | 91 |
| 4217 | 92 // TRUE means we are ready to interpret commands, but not everything |
| 93 // is ready for interactive use. | |
| 94 bool octave_interpreter_ready = false; | |
| 95 | |
| 4172 | 96 // TRUE means we've processed all the init code and we are good to go. |
| 97 bool octave_initialized = false; | |
| 98 | |
| 1683 | 99 // Current command to execute. |
| 100 tree_statement_list *global_command = 0; | |
| 101 | |
| 5743 | 102 octave_call_stack *octave_call_stack::instance = 0; |
| 103 | |
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104 int |
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105 octave_call_stack::do_current_line (void) const |
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106 { |
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107 tree_statement *stmt = do_top_statement (); |
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108 |
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109 return stmt ? stmt->line () : -1; |
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110 } |
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111 |
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112 int |
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113 octave_call_stack::do_current_column (void) const |
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114 { |
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115 tree_statement *stmt = do_top_statement (); |
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116 |
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117 return stmt ? stmt->column () : -1; |
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118 } |
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119 |
| 7877 | 120 int |
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121 octave_call_stack::do_caller_user_code_line (void) const |
| 7877 | 122 { |
| 123 int retval = -1; | |
| 124 | |
| 7890 | 125 const_iterator p = cs.end (); |
| 126 | |
| 127 while (p != cs.begin ()) | |
| 7877 | 128 { |
| 7890 | 129 const call_stack_elt& elt = *(--p); |
| 7877 | 130 |
| 131 octave_function *f = elt.fcn; | |
| 132 | |
| 133 if (f && f->is_user_code ()) | |
| 134 { | |
| 135 tree_statement *stmt = elt.stmt; | |
| 136 | |
| 137 if (stmt) | |
| 138 { | |
| 139 retval = stmt->line (); | |
| 140 break; | |
| 141 } | |
| 142 } | |
| 143 } | |
| 144 | |
| 145 return retval; | |
| 146 } | |
| 147 | |
| 148 int | |
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149 octave_call_stack::do_caller_user_code_column (void) const |
| 7877 | 150 { |
| 151 int retval = -1; | |
| 152 | |
| 7890 | 153 const_iterator p = cs.end (); |
| 154 | |
| 155 while (p != cs.begin ()) | |
| 7877 | 156 { |
| 7890 | 157 const call_stack_elt& elt = *(--p); |
| 7877 | 158 |
| 159 octave_function *f = elt.fcn; | |
| 160 | |
| 161 if (f && f->is_user_code ()) | |
| 162 { | |
| 163 tree_statement *stmt = elt.stmt; | |
| 164 | |
| 165 if (stmt) | |
| 166 { | |
| 167 retval = stmt->column (); | |
| 168 break; | |
| 169 } | |
| 170 } | |
| 171 } | |
| 172 | |
| 173 return retval; | |
| 174 } | |
| 175 | |
| 7901 | 176 size_t |
| 177 octave_call_stack::do_num_user_code_frames (octave_idx_type& curr_user_frame) const | |
| 178 { | |
| 179 size_t retval = 0; | |
| 180 | |
| 181 curr_user_frame = 0; | |
| 182 | |
| 183 // Look for the caller of dbstack. | |
| 184 size_t frame = cs[curr_frame].prev; | |
| 185 | |
| 186 bool found = false; | |
| 187 | |
| 188 size_t k = cs.size (); | |
| 189 | |
| 190 for (const_reverse_iterator p = cs.rbegin (); p != cs.rend (); p++) | |
| 191 { | |
| 192 octave_function *f = (*p).fcn; | |
| 193 | |
| 194 if (--k == frame) | |
| 195 found = true; | |
| 196 | |
| 197 if (f && f->is_user_code ()) | |
| 198 { | |
| 199 if (! found) | |
| 200 curr_user_frame++; | |
| 201 | |
| 202 retval++; | |
| 203 } | |
| 204 } | |
| 205 | |
| 206 // We counted how many user frames were not the one, in reverse. | |
| 207 // Now set curr_user_frame to be the index in the other direction. | |
| 208 curr_user_frame = retval - curr_user_frame - 1; | |
| 209 | |
| 210 return retval; | |
| 211 } | |
| 212 | |
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213 octave_user_code * |
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214 octave_call_stack::do_caller_user_code (size_t nskip) const |
| 5744 | 215 { |
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216 octave_user_code *retval = 0; |
| 5744 | 217 |
| 7890 | 218 const_iterator p = cs.end (); |
| 219 | |
| 220 while (p != cs.begin ()) | |
| 5744 | 221 { |
| 7890 | 222 const call_stack_elt& elt = *(--p); |
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223 |
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224 octave_function *f = elt.fcn; |
| 5744 | 225 |
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226 if (f && f->is_user_code ()) |
| 5744 | 227 { |
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228 if (nskip > 0) |
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229 nskip--; |
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230 else |
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231 { |
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232 retval = dynamic_cast<octave_user_code *> (f); |
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233 break; |
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234 } |
| 5744 | 235 } |
| 236 } | |
| 237 | |
| 238 return retval; | |
| 239 } | |
| 240 | |
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241 Octave_map |
| 7901 | 242 octave_call_stack::do_backtrace (size_t nskip, |
| 243 octave_idx_type& curr_user_frame) const | |
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244 { |
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245 Octave_map retval; |
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246 |
| 7901 | 247 size_t user_code_frames = do_num_user_code_frames (curr_user_frame); |
| 248 | |
| 249 size_t nframes = nskip <= user_code_frames ? user_code_frames - nskip : 0; | |
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250 |
| 7901 | 251 // Our list is reversed. |
| 252 curr_user_frame = nframes - curr_user_frame - 1; | |
| 253 | |
| 254 Cell keys (6, 1); | |
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255 |
| 7901 | 256 keys(0) = "file"; |
| 257 keys(1) = "name"; | |
| 258 keys(2) = "line"; | |
| 259 keys(3) = "column"; | |
| 260 keys(4) = "scope"; | |
| 261 keys(5) = "context"; | |
| 7890 | 262 |
| 7901 | 263 Cell file (nframes, 1); |
| 264 Cell name (nframes, 1); | |
| 265 Cell line (nframes, 1); | |
| 266 Cell column (nframes, 1); | |
| 267 Cell scope (nframes, 1); | |
| 268 Cell context (nframes, 1); | |
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269 |
| 7901 | 270 if (nframes > 0) |
| 271 { | |
| 272 int k = 0; | |
| 273 | |
| 274 for (const_reverse_iterator p = cs.rbegin (); p != cs.rend (); p++) | |
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275 { |
| 7901 | 276 const call_stack_elt& elt = *p; |
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277 |
| 7736 | 278 octave_function *f = elt.fcn; |
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279 |
| 7901 | 280 if (f && f->is_user_code ()) |
| 7736 | 281 { |
| 7901 | 282 if (nskip > 0) |
| 283 nskip--; | |
| 7736 | 284 else |
| 285 { | |
| 7901 | 286 scope(k) = elt.scope; |
| 287 context(k) = elt.context; | |
| 288 | |
| 289 file(k) = f->fcn_file_name (); | |
| 290 std::string parent_fcn_name = f->parent_fcn_name (); | |
| 291 if (parent_fcn_name == std::string ()) | |
| 292 name(k) = f->name (); | |
| 293 else | |
| 294 name(k) = f->parent_fcn_name () + Vfilemarker + f->name (); | |
| 295 | |
| 296 tree_statement *stmt = elt.stmt; | |
| 297 | |
| 298 if (stmt) | |
| 299 { | |
| 300 line(k) = stmt->line (); | |
| 301 column(k) = stmt->column (); | |
| 302 } | |
| 303 else | |
| 304 { | |
| 305 line(k) = -1; | |
| 306 column(k) = -1; | |
| 307 } | |
| 308 | |
| 309 k++; | |
| 7736 | 310 } |
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311 } |
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312 } |
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313 |
| 7736 | 314 retval.assign ("file", file); |
| 315 retval.assign ("name", name); | |
| 316 retval.assign ("line", line); | |
| 317 retval.assign ("column", column); | |
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318 retval.assign ("scope", scope); |
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319 retval.assign ("context", context); |
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320 } |
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321 |
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322 return retval; |
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323 } |
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324 |
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325 bool |
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326 octave_call_stack::do_goto_frame (size_t n, bool verbose) |
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327 { |
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328 bool retval = false; |
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329 |
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330 if (n < cs.size ()) |
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331 { |
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332 retval = true; |
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333 |
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334 curr_frame = n; |
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335 |
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336 const call_stack_elt& elt = cs[n]; |
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337 |
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338 symbol_table::set_scope_and_context (elt.scope, elt.context); |
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339 |
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340 if (verbose) |
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341 { |
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342 octave_function *f = elt.fcn; |
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343 std::string nm = f ? f->name () : std::string ("<unknown>"); |
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344 |
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345 tree_statement *s = elt.stmt; |
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346 int l = -1; |
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347 int c = -1; |
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348 if (s) |
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349 { |
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350 l = s->line (); |
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351 c = s->column (); |
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352 } |
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353 |
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354 octave_stdout << "stopped in " << nm |
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355 << " at line " << l << " column " << c |
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356 << " (" << elt.scope << "[" << elt.context << "])" |
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357 << std::endl; |
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358 } |
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359 } |
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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 bool |
| 7901 | 365 octave_call_stack::do_goto_frame_relative (int nskip, bool verbose) |
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366 { |
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367 bool retval = false; |
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368 |
| 7901 | 369 if (nskip == 0) |
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370 retval = true; |
| 7890 | 371 else |
| 372 { | |
| 7901 | 373 int incr = nskip < 0 ? -1 : 1; |
| 374 | |
| 375 // Start looking with the caller of dbup/dbdown. | |
| 376 size_t frame = cs[curr_frame].prev; | |
| 377 | |
| 378 while (true) | |
| 379 { | |
| 380 if ((incr < 0 && frame == 0) || (incr > 0 && frame == cs.size () - 1)) | |
| 381 break; | |
| 382 | |
| 383 frame += incr; | |
| 384 | |
| 385 const call_stack_elt& elt = cs[frame]; | |
| 386 | |
| 387 octave_function *f = elt.fcn; | |
| 388 | |
| 389 if (f && f->is_user_code ()) | |
| 390 { | |
| 391 if (nskip > 0) | |
| 392 nskip--; | |
| 393 else if (nskip < 0) | |
| 394 nskip++; | |
| 395 | |
| 396 if (nskip == 0) | |
| 397 { | |
| 398 curr_frame = frame; | |
| 399 cs[cs.size () - 1].prev = curr_frame; | |
| 7890 | 400 |
| 7901 | 401 if (verbose) |
| 402 { | |
| 403 tree_statement *s = elt.stmt; | |
| 404 int l = -1; | |
| 405 int c = -1; | |
| 406 if (s) | |
| 407 { | |
| 408 l = s->line (); | |
| 409 c = s->column (); | |
| 410 } | |
| 411 | |
| 412 std::ostringstream buf; | |
| 413 buf << f->name () << ": " << " line " << l | |
| 414 << ", column " << c << std::endl; | |
| 415 | |
| 416 octave_stdout << buf.str (); | |
| 417 } | |
| 418 | |
| 419 retval = true; | |
| 420 break; | |
| 421 } | |
| 422 } | |
| 423 } | |
| 424 | |
| 425 // There is no need to set scope and context here. That will | |
| 426 // happen when the dbup/dbdown frame is popped and we jump to | |
| 427 // the new "prev" frame set above. | |
| 7890 | 428 } |
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429 |
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430 return retval; |
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431 } |
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432 |
| 5744 | 433 void |
| 7901 | 434 octave_call_stack::do_goto_caller_frame (void) |
| 435 { | |
| 436 size_t frame = curr_frame; | |
| 437 | |
| 438 bool skipped = false; | |
| 439 | |
| 440 while (frame != 0) | |
| 441 { | |
| 442 frame = cs[frame].prev; | |
| 443 | |
| 444 const call_stack_elt& elt = cs[frame]; | |
| 445 | |
| 446 octave_function *f = elt.fcn; | |
| 447 | |
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448 if (frame == 0 || (f && f->is_user_code ())) |
| 7901 | 449 { |
| 450 if (! skipped) | |
| 451 // We found the current user code frame, so skip it. | |
| 452 skipped = true; | |
| 453 else | |
| 454 { | |
| 455 // We found the caller user code frame. | |
| 456 call_stack_elt tmp (elt); | |
| 457 tmp.prev = curr_frame; | |
| 458 | |
| 459 curr_frame = cs.size (); | |
| 460 | |
| 461 cs.push_back (tmp); | |
| 462 | |
| 463 symbol_table::set_scope_and_context (tmp.scope, tmp.context); | |
| 464 | |
| 465 break; | |
| 466 } | |
| 467 } | |
| 468 } | |
| 469 } | |
| 470 | |
| 471 void | |
| 472 octave_call_stack::do_goto_base_frame (void) | |
| 473 { | |
| 474 call_stack_elt tmp (cs[0]); | |
| 475 tmp.prev = curr_frame; | |
| 476 | |
| 477 curr_frame = cs.size (); | |
| 478 | |
| 479 cs.push_back (tmp); | |
| 480 | |
| 481 symbol_table::set_scope_and_context (tmp.scope, tmp.context); | |
| 482 } | |
| 483 | |
| 484 void | |
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485 octave_call_stack::do_backtrace_error_message (void) const |
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486 { |
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487 if (error_state > 0) |
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488 { |
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489 error_state = -1; |
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490 |
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491 error ("called from:"); |
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492 } |
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493 |
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494 if (! cs.empty ()) |
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495 { |
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496 const call_stack_elt& elt = cs.back (); |
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497 |
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498 octave_function *fcn = elt.fcn; |
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499 tree_statement *stmt = elt.stmt; |
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500 |
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501 std::string fcn_name = "?unknown?"; |
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502 |
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503 if (fcn) |
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504 { |
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505 fcn_name = fcn->fcn_file_name (); |
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506 |
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507 if (fcn_name.empty ()) |
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508 fcn_name = fcn->name (); |
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509 } |
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510 |
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511 int line = stmt ? stmt->line () : -1; |
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512 int column = stmt ? stmt->column () : -1; |
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513 |
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514 error (" %s at line %d, column %d", |
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515 fcn_name.c_str (), line, column); |
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516 } |
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517 } |
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518 |
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519 void |
| 4180 | 520 recover_from_exception (void) |
| 521 { | |
| 522 can_interrupt = true; | |
| 4182 | 523 octave_interrupt_immediately = 0; |
| 4180 | 524 octave_interrupt_state = 0; |
| 5142 | 525 octave_signal_caught = 0; |
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526 octave_exception_state = octave_no_exception; |
| 4180 | 527 octave_restore_signal_mask (); |
| 528 octave_catch_interrupts (); | |
| 529 } | |
| 530 | |
| 1907 | 531 int |
| 5189 | 532 main_loop (void) |
| 1907 | 533 { |
| 2016 | 534 octave_save_signal_mask (); |
| 535 | |
| 3020 | 536 can_interrupt = true; |
| 1907 | 537 |
| 5142 | 538 octave_signal_hook = octave_signal_handler; |
| 4429 | 539 octave_interrupt_hook = unwind_protect::run_all; |
| 540 octave_bad_alloc_hook = unwind_protect::run_all; | |
| 541 | |
| 2554 | 542 octave_catch_interrupts (); |
| 1907 | 543 |
| 4172 | 544 octave_initialized = true; |
| 545 | |
| 1907 | 546 // The big loop. |
| 547 | |
| 4153 | 548 int retval = 0; |
| 1907 | 549 do |
| 550 { | |
| 4180 | 551 try |
| 1907 | 552 { |
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553 unwind_protect::frame_id_t uwp_frame = unwind_protect::begin_frame (); |
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554 |
| 4318 | 555 reset_error_handler (); |
| 556 | |
| 4153 | 557 reset_parser (); |
| 2620 | 558 |
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559 // Do this with an unwind-protect cleanup function so that |
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560 // the forced variables will be unmarked in the event of an |
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561 // interrupt. |
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562 symbol_table::scope_id scope = symbol_table::top_scope (); |
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563 unwind_protect::add_fcn (symbol_table::unmark_forced_variables, scope); |
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564 |
| 4753 | 565 // This is the same as yyparse in parse.y. |
| 566 retval = octave_parse (); | |
| 2620 | 567 |
| 4153 | 568 if (retval == 0) |
| 569 { | |
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570 if (global_command) |
| 3804 | 571 { |
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572 global_command->accept (*current_evaluator); |
| 3883 | 573 |
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574 delete global_command; |
| 3883 | 575 |
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576 global_command = 0; |
| 3883 | 577 |
| 4171 | 578 OCTAVE_QUIT; |
| 579 | |
| 3883 | 580 if (! (interactive || forced_interactive)) |
| 581 { | |
| 4207 | 582 bool quit = (tree_return_command::returning |
| 583 || tree_break_command::breaking); | |
| 4153 | 584 |
| 4207 | 585 if (tree_return_command::returning) |
| 586 tree_return_command::returning = 0; | |
| 4153 | 587 |
| 4207 | 588 if (tree_break_command::breaking) |
| 589 tree_break_command::breaking--; | |
| 4153 | 590 |
| 591 if (quit) | |
| 592 break; | |
| 593 } | |
| 594 | |
| 595 if (error_state) | |
| 596 { | |
| 597 if (! (interactive || forced_interactive)) | |
| 598 { | |
| 599 // We should exit with a non-zero status. | |
| 600 retval = 1; | |
| 601 break; | |
| 602 } | |
| 603 } | |
| 604 else | |
| 605 { | |
| 606 if (octave_completion_matches_called) | |
| 607 octave_completion_matches_called = false; | |
| 608 else | |
| 609 command_editor::increment_current_command_number (); | |
| 3883 | 610 } |
| 611 } | |
| 4153 | 612 else if (parser_end_of_input) |
| 613 break; | |
| 2620 | 614 } |
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615 |
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616 unwind_protect::run_frame (uwp_frame); |
| 4153 | 617 } |
| 4182 | 618 catch (octave_interrupt_exception) |
| 4153 | 619 { |
| 4180 | 620 recover_from_exception (); |
| 9383 | 621 octave_stdout << "\n"; |
| 622 if (quitting_gracefully) | |
| 623 { | |
| 624 clean_up_and_exit (exit_status); | |
| 625 break; // If user has overriden the exit func. | |
| 626 } | |
| 4180 | 627 } |
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628 catch (octave_execution_exception) |
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629 { |
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630 recover_from_exception (); |
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631 std::cerr |
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632 << "error: unhandled execution exception -- trying to return to prompt" |
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633 << std::endl; |
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634 } |
| 4181 | 635 catch (std::bad_alloc) |
| 4180 | 636 { |
| 637 recover_from_exception (); | |
| 638 std::cerr | |
| 6680 | 639 << "error: memory exhausted or requested size too large for range of Octave's index type -- trying to return to prompt" |
| 640 << std::endl; | |
| 1907 | 641 } |
| 642 } | |
| 643 while (retval == 0); | |
| 644 | |
| 645 return retval; | |
| 646 } | |
| 647 | |
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648 // Call a function with exceptions handled to avoid problems with |
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649 // errors while shutting down. |
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650 |
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651 #define IGNORE_EXCEPTION(E) \ |
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652 catch (E) \ |
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653 { \ |
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654 std::cerr << "error: ignoring " #E " while preparing to exit" << std::endl; \ |
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655 recover_from_exception (); \ |
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656 } |
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657 |
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658 #define SAFE_CALL(F, ARGS) \ |
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659 try \ |
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660 { \ |
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661 F ARGS; \ |
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662 } \ |
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663 IGNORE_EXCEPTION (octave_interrupt_exception) \ |
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664 IGNORE_EXCEPTION (octave_execution_exception) \ |
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665 IGNORE_EXCEPTION (std::bad_alloc) |
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666 |
| 1683 | 667 // Fix up things before exiting. |
| 668 | |
| 669 void | |
| 3162 | 670 clean_up_and_exit (int retval) |
| 671 { | |
| 3216 | 672 do_octave_atexit (); |
| 1683 | 673 |
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674 SAFE_CALL (sysdep_cleanup, ()) |
| 5451 | 675 |
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676 if (octave_exit) |
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677 (*octave_exit) (retval == EOF ? 0 : retval); |
| 1683 | 678 } |
| 679 | |
| 3180 | 680 DEFUN (quit, args, nargout, |
| 3332 | 681 "-*- texinfo -*-\n\ |
| 682 @deftypefn {Built-in Function} {} exit (@var{status})\n\ | |
| 683 @deftypefnx {Built-in Function} {} quit (@var{status})\n\ | |
| 684 Exit the current Octave session. If the optional integer value\n\ | |
| 685 @var{status} is supplied, pass that value to the operating system as the\n\ | |
| 6615 | 686 Octave's exit status. The default value is zero.\n\ |
| 3333 | 687 @end deftypefn") |
| 1683 | 688 { |
| 2086 | 689 octave_value_list retval; |
| 2068 | 690 |
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691 if (! quit_allowed) |
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692 error ("quit: not supported in embedded mode."); |
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693 else if (nargout == 0) |
| 2068 | 694 { |
| 3180 | 695 if (args.length () > 0) |
| 696 { | |
| 3202 | 697 int tmp = args(0).nint_value (); |
| 1683 | 698 |
| 3202 | 699 if (! error_state) |
| 700 exit_status = tmp; | |
| 3180 | 701 } |
| 702 | |
| 9383 | 703 if (! error_state) |
| 704 { | |
| 705 quitting_gracefully = true; | |
| 706 | |
| 707 // Simulate interrupt. | |
| 708 | |
| 709 octave_interrupt_state = -1; | |
| 710 | |
| 711 octave_throw_interrupt_exception (); | |
| 712 } | |
| 2068 | 713 } |
| 3180 | 714 else |
| 715 error ("quit: invalid number of output arguments"); | |
| 2068 | 716 |
| 1683 | 717 return retval; |
| 718 } | |
| 719 | |
| 720 DEFALIAS (exit, quit); | |
| 721 | |
| 1957 | 722 DEFUN (warranty, , , |
| 3446 | 723 "-*- texinfo -*-\n\ |
| 724 @deftypefn {Built-in Function} {} warranty ()\n\ | |
| 725 Describe the conditions for copying and distributing Octave.\n\ | |
| 726 @end deftypefn") | |
| 1683 | 727 { |
| 2086 | 728 octave_value_list retval; |
| 1683 | 729 |
| 3922 | 730 octave_stdout << "\n" \ |
| 731 OCTAVE_NAME_VERSION_AND_COPYRIGHT "\n\ | |
| 732 \n\ | |
| 1683 | 733 This program is free software; you can redistribute it and/or modify\n\ |
| 734 it under the terms of the GNU General Public License as published by\n\ | |
| 7016 | 735 the Free Software Foundation; either version 3 of the License, or\n\ |
| 1683 | 736 (at your option) any later version.\n\ |
| 737 \n\ | |
| 738 This program is distributed in the hope that it will be useful,\n\ | |
| 739 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\ | |
| 740 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\ | |
| 741 GNU General Public License for more details.\n\ | |
| 742 \n\ | |
| 743 You should have received a copy of the GNU General Public License\n\ | |
| 7016 | 744 along with this program. If not, see <http://www.gnu.org/licenses/>.\n\ |
| 1683 | 745 \n"; |
| 746 | |
| 747 return retval; | |
| 748 } | |
| 749 | |
| 750 // Execute a shell command. | |
| 751 | |
| 1965 | 752 static void |
| 753 cleanup_iprocstream (void *p) | |
| 754 { | |
| 3060 | 755 iprocstream *cmd = static_cast<iprocstream *> (p); |
| 756 | |
| 757 octave_child_list::remove (cmd->pid ()); | |
| 758 | |
| 759 delete cmd; | |
| 1965 | 760 } |
| 761 | |
| 6316 | 762 static int |
| 763 wait_for_input (int fid) | |
| 764 { | |
| 765 int retval = -1; | |
| 766 | |
| 767 #if defined (HAVE_SELECT) | |
| 768 if (fid >= 0) | |
| 769 { | |
| 770 fd_set set; | |
| 771 | |
| 772 FD_ZERO (&set); | |
| 773 FD_SET (fid, &set); | |
| 774 | |
| 775 retval = select (FD_SETSIZE, &set, 0, 0, 0); | |
| 776 } | |
| 777 #else | |
| 778 retval = 1; | |
| 779 #endif | |
| 780 | |
| 781 return retval; | |
| 782 } | |
| 783 | |
| 2086 | 784 static octave_value_list |
| 3523 | 785 run_command_and_return_output (const std::string& cmd_str) |
| 2083 | 786 { |
| 2086 | 787 octave_value_list retval; |
| 2083 | 788 |
| 789 iprocstream *cmd = new iprocstream (cmd_str.c_str ()); | |
| 790 | |
| 3060 | 791 if (cmd) |
| 2083 | 792 { |
| 3060 | 793 unwind_protect::add (cleanup_iprocstream, cmd); |
| 794 | |
| 795 if (*cmd) | |
| 796 { | |
| 6316 | 797 int fid = cmd->file_number (); |
| 2095 | 798 |
| 6316 | 799 std::ostringstream output_buf; |
| 4494 | 800 |
| 3060 | 801 char ch; |
| 3147 | 802 |
| 4489 | 803 for (;;) |
| 3147 | 804 { |
| 4489 | 805 if (cmd->get (ch)) |
| 806 output_buf.put (ch); | |
| 807 else | |
| 808 { | |
| 809 if (! cmd->eof () && errno == EAGAIN) | |
| 810 { | |
| 811 cmd->clear (); | |
| 3147 | 812 |
| 6316 | 813 if (wait_for_input (fid) != 1) |
| 814 break; | |
| 4489 | 815 } |
| 816 else | |
| 817 break; | |
| 818 } | |
| 3147 | 819 } |
| 820 | |
| 3252 | 821 int cmd_status = cmd->close (); |
| 2083 | 822 |
| 3060 | 823 if (WIFEXITED (cmd_status)) |
| 824 cmd_status = WEXITSTATUS (cmd_status); | |
| 825 else | |
| 826 cmd_status = 127; | |
| 2083 | 827 |
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828 retval(0) = cmd_status; |
| 5765 | 829 retval(1) = output_buf.str (); |
| 3060 | 830 } |
| 831 | |
| 832 unwind_protect::run (); | |
| 2083 | 833 } |
| 834 else | |
| 835 error ("unable to start subprocess for `%s'", cmd_str.c_str ()); | |
| 836 | |
| 837 return retval; | |
| 838 } | |
| 839 | |
| 5285 | 840 enum system_exec_type { et_sync, et_async }; |
| 841 | |
| 1957 | 842 DEFUN (system, args, nargout, |
| 3301 | 843 "-*- texinfo -*-\n\ |
| 844 @deftypefn {Built-in Function} {} system (@var{string}, @var{return_output}, @var{type})\n\ | |
| 845 Execute a shell command specified by @var{string}. The second\n\ | |
| 846 argument is optional. If @var{type} is @code{\"async\"}, the process\n\ | |
| 847 is started in the background and the process id of the child process\n\ | |
| 848 is returned immediately. Otherwise, the process is started, and\n\ | |
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849 Octave waits until it exits. If the @var{type} argument is omitted, a\n\ |
| 3301 | 850 value of @code{\"sync\"} is assumed.\n\ |
| 2083 | 851 \n\ |
| 3301 | 852 If two input arguments are given (the actual value of\n\ |
| 853 @var{return_output} is irrelevant) and the subprocess is started\n\ | |
| 854 synchronously, or if @var{system} is called with one input argument and\n\ | |
| 855 one or more output arguments, the output from the command is returned.\n\ | |
| 5097 | 856 Otherwise, if the subprocess is executed synchronously, its output is\n\ |
| 2321 | 857 sent to the standard output. To send the output of a command executed\n\ |
| 3301 | 858 with @var{system} through the pager, use a command like\n\ |
| 2321 | 859 \n\ |
| 3301 | 860 @example\n\ |
| 861 disp (system (cmd, 1));\n\ | |
| 862 @end example\n\ | |
| 2321 | 863 \n\ |
| 3301 | 864 @noindent\n\ |
| 2321 | 865 or\n\ |
| 866 \n\ | |
| 3301 | 867 @example\n\ |
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868 printf (\"%s\\n\", system (cmd, 1));\n\ |
| 3301 | 869 @end example\n\ |
| 870 \n\ | |
| 5659 | 871 The @code{system} function can return two values. The first is the\n\ |
| 872 exit status of the command and the second is any output from the\n\ | |
| 873 command that was written to the standard output stream. For example,\n\ | |
| 3301 | 874 \n\ |
| 875 @example\n\ | |
| 5717 | 876 [status, output] = system (\"echo foo; exit 2\");\n\ |
| 3301 | 877 @end example\n\ |
| 878 \n\ | |
| 879 @noindent\n\ | |
| 880 will set the variable @code{output} to the string @samp{foo}, and the\n\ | |
| 881 variable @code{status} to the integer @samp{2}.\n\ | |
| 882 @end deftypefn") | |
| 1683 | 883 { |
| 2086 | 884 octave_value_list retval; |
| 1683 | 885 |
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886 unwind_protect::frame_id_t uwp_frame = unwind_protect::begin_frame (); |
| 3834 | 887 |
| 1683 | 888 int nargin = args.length (); |
| 889 | |
| 2083 | 890 if (nargin > 0 && nargin < 4) |
| 1683 | 891 { |
| 5672 | 892 bool return_output = (nargout > 1 || nargin > 1); |
| 2083 | 893 |
| 3523 | 894 std::string cmd_str = args(0).string_value (); |
| 2083 | 895 |
| 5285 | 896 system_exec_type type = et_sync; |
| 2083 | 897 |
| 898 if (! error_state) | |
| 899 { | |
| 900 if (nargin > 2) | |
| 901 { | |
| 3523 | 902 std::string type_str = args(2).string_value (); |
| 1683 | 903 |
| 2083 | 904 if (! error_state) |
| 905 { | |
| 906 if (type_str == "sync") | |
| 5285 | 907 type = et_sync; |
| 2083 | 908 else if (type_str == "async") |
| 5285 | 909 type = et_async; |
| 2083 | 910 else |
| 911 error ("system: third arg must be \"sync\" or \"async\""); | |
| 912 } | |
| 913 else | |
| 914 error ("system: third argument must be a string"); | |
| 915 } | |
| 916 } | |
| 917 else | |
| 3523 | 918 error ("system: expecting std::string as first argument"); |
| 1683 | 919 |
| 2083 | 920 if (! error_state) |
| 921 { | |
| 7104 | 922 #if defined (__WIN32__) && ! defined (__CYGWIN__) |
| 923 // Work around weird double-quote handling on Windows systems. | |
| 924 if (type == et_sync) | |
| 925 cmd_str = "\"" + cmd_str + "\""; | |
| 926 #endif | |
| 927 | |
| 5285 | 928 if (type == et_async) |
| 2083 | 929 { |
| 6222 | 930 // FIXME -- maybe this should go in sysdep.cc? |
| 4086 | 931 #ifdef HAVE_FORK |
| 2083 | 932 pid_t pid = fork (); |
| 933 | |
| 934 if (pid < 0) | |
| 935 error ("system: fork failed -- can't create child process"); | |
| 936 else if (pid == 0) | |
| 937 { | |
| 5775 | 938 // FIXME -- should probably replace this |
| 3273 | 939 // call with something portable. |
| 940 | |
| 5510 | 941 execl ("/bin/sh", "sh", "-c", cmd_str.c_str (), |
| 942 static_cast<void *> (0)); | |
| 3273 | 943 |
| 944 panic_impossible (); | |
| 2083 | 945 } |
| 946 else | |
| 4254 | 947 retval(0) = pid; |
| 6222 | 948 #elif defined (__WIN32__) |
| 949 STARTUPINFO si; | |
| 950 PROCESS_INFORMATION pi; | |
| 951 ZeroMemory (&si, sizeof (si)); | |
| 952 ZeroMemory (&pi, sizeof (pi)); | |
| 953 OCTAVE_LOCAL_BUFFER (char, xcmd_str, cmd_str.length()+1); | |
| 6676 | 954 strcpy (xcmd_str, cmd_str.c_str ()); |
| 6222 | 955 |
| 956 if (! CreateProcess (0, xcmd_str, 0, 0, FALSE, 0, 0, 0, &si, &pi)) | |
| 957 error ("system: CreateProcess failed -- can't create child process"); | |
| 958 else | |
| 959 { | |
| 960 retval(0) = pi.dwProcessId; | |
| 961 CloseHandle (pi.hProcess); | |
| 962 CloseHandle (pi.hThread); | |
| 963 } | |
| 4086 | 964 #else |
| 965 error ("asynchronous system calls are not supported"); | |
| 966 #endif | |
| 2083 | 967 } |
| 2321 | 968 else if (return_output) |
| 969 retval = run_command_and_return_output (cmd_str); | |
| 2083 | 970 else |
| 2321 | 971 { |
| 972 int status = system (cmd_str.c_str ()); | |
| 973 | |
| 974 // The value in status is as returned by waitpid. If | |
| 975 // the process exited normally, extract the actual exit | |
| 976 // status of the command. Otherwise, return 127 as a | |
| 977 // failure code. | |
| 978 | |
| 2693 | 979 if (WIFEXITED (status)) |
| 980 status = WEXITSTATUS (status); | |
| 2321 | 981 |
| 4233 | 982 retval(0) = status; |
| 2321 | 983 } |
| 2083 | 984 } |
| 1683 | 985 } |
| 986 else | |
| 5823 | 987 print_usage (); |
| 1683 | 988 |
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989 unwind_protect::run_frame (uwp_frame); |
| 3834 | 990 |
| 1683 | 991 return retval; |
| 992 } | |
| 993 | |
| 994 DEFALIAS (shell_cmd, system); | |
| 995 | |
| 5775 | 996 // FIXME -- this should really be static, but that causes |
| 2614 | 997 // problems on some systems. |
| 6680 | 998 std::list<std::string> octave_atexit_functions; |
| 2077 | 999 |
| 1000 void | |
| 1001 do_octave_atexit (void) | |
| 1002 { | |
| 3216 | 1003 static bool deja_vu = false; |
| 1004 | |
| 2077 | 1005 while (! octave_atexit_functions.empty ()) |
| 1006 { | |
| 6680 | 1007 std::string fcn = octave_atexit_functions.front (); |
| 4214 | 1008 |
| 6680 | 1009 octave_atexit_functions.pop_front (); |
| 2077 | 1010 |
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1011 SAFE_CALL (reset_error_handler, ()) |
| 5237 | 1012 |
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1013 SAFE_CALL (feval, (fcn, octave_value_list (), 0)) |
| 3215 | 1014 |
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1015 SAFE_CALL (flush_octave_stdout, ()) |
| 2077 | 1016 } |
| 3216 | 1017 |
| 1018 if (! deja_vu) | |
| 1019 { | |
| 1020 deja_vu = true; | |
| 1021 | |
| 6068 | 1022 // Do this explicitly so that destructors for mex file objects |
| 1023 // are called, so that functions registered with mexAtExit are | |
| 1024 // called. | |
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1025 SAFE_CALL (clear_mex_functions, ()) |
| 6068 | 1026 |
|
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1027 SAFE_CALL (command_editor::restore_terminal_state, ()) |
| 3216 | 1028 |
| 5775 | 1029 // FIXME -- is this needed? Can it cause any trouble? |
|
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1030 SAFE_CALL (raw_mode, (0)) |
| 3216 | 1031 |
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1032 SAFE_CALL (octave_history_write_timestamp, ()) |
| 5305 | 1033 |
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1034 if (Vsaving_history) |
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1035 SAFE_CALL (command_history::clean_up_and_save, ()) |
| 3216 | 1036 |
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1037 SAFE_CALL (close_files, ()) |
| 3216 | 1038 |
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1039 SAFE_CALL (cleanup_tmp_files, ()) |
| 3216 | 1040 |
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1041 SAFE_CALL (flush_octave_stdout, ()) |
| 3216 | 1042 |
| 5305 | 1043 if (! quitting_gracefully && (interactive || forced_interactive)) |
| 5629 | 1044 { |
| 1045 octave_stdout << "\n"; | |
| 1046 | |
| 1047 // Yes, we want this to be separate from the call to | |
| 1048 // flush_octave_stdout above. | |
| 1049 | |
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1050 SAFE_CALL (flush_octave_stdout, ()) |
| 5629 | 1051 } |
| 3216 | 1052 } |
| 2077 | 1053 } |
| 1054 | |
| 7409 | 1055 void |
| 1056 octave_add_atexit_function (const std::string& fname) | |
| 1057 { | |
| 1058 octave_atexit_functions.push_front (fname); | |
| 1059 } | |
| 1060 | |
| 1061 bool | |
| 1062 octave_remove_atexit_function (const std::string& fname) | |
| 1063 { | |
| 1064 bool found = false; | |
| 1065 | |
| 1066 for (std::list<std::string>::iterator p = octave_atexit_functions.begin (); | |
| 1067 p != octave_atexit_functions.end (); p++) | |
| 1068 { | |
| 1069 if (*p == fname) | |
| 1070 { | |
| 1071 octave_atexit_functions.erase (p); | |
| 1072 found = true; | |
| 1073 break; | |
| 1074 } | |
| 1075 } | |
| 1076 | |
| 1077 return found; | |
| 1078 } | |
| 1079 | |
| 1080 | |
| 6680 | 1081 DEFUN (atexit, args, nargout, |
| 3332 | 1082 "-*- texinfo -*-\n\ |
| 1083 @deftypefn {Built-in Function} {} atexit (@var{fcn})\n\ | |
|
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1084 @deftypefnx {Built-in Function} {} atexit (@var{fcn}, @var{flag})\n\ |
| 3332 | 1085 Register a function to be called when Octave exits. For example,\n\ |
| 2077 | 1086 \n\ |
| 3332 | 1087 @example\n\ |
| 1088 @group\n\ | |
|
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1089 function last_words ()\n\ |
| 6620 | 1090 disp (\"Bye bye\");\n\ |
| 3332 | 1091 endfunction\n\ |
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1092 atexit (\"last_words\");\n\ |
| 3332 | 1093 @end group\n\ |
| 1094 @end example\n\ | |
| 1095 \n\ | |
| 1096 @noindent\n\ | |
| 6620 | 1097 will print the message \"Bye bye\" when Octave exits.\n\ |
| 6680 | 1098 \n\ |
|
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1099 The additional argument @var{flag} will register or unregister\n\ |
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1100 @var{fcn} from the list of functions to be called when Octave\n\ |
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1101 exits. If @var{flag} is true, the function is registered, and if\n\ |
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1102 @var{flag} is false, it is unregistered. For example,\n\ |
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1103 after registering the function @code{last_words} above,\n\ |
| 6680 | 1104 \n\ |
| 1105 @example\n\ | |
|
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1106 atexit (\"last_words\", false);\n\ |
| 6680 | 1107 @end example\n\ |
| 1108 \n\ | |
| 1109 @noindent\n\ | |
| 1110 will remove the function from the list and Octave will not call\n\ | |
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1111 @code{last_words} when it exits.\n\ |
| 6680 | 1112 \n\ |
| 7001 | 1113 Note that @code{atexit} only removes the first occurrence of a function\n\ |
| 6680 | 1114 from the list, so if a function was placed in the list multiple\n\ |
| 1115 times with @code{atexit}, it must also be removed from the list\n\ | |
| 1116 multiple times.\n\ | |
| 3333 | 1117 @end deftypefn") |
| 2077 | 1118 { |
| 2086 | 1119 octave_value_list retval; |
| 2077 | 1120 |
| 1121 int nargin = args.length (); | |
| 1122 | |
| 6680 | 1123 if (nargin == 1 || nargin == 2) |
| 2077 | 1124 { |
| 3523 | 1125 std::string arg = args(0).string_value (); |
| 2077 | 1126 |
| 1127 if (! error_state) | |
| 6680 | 1128 { |
| 1129 bool add_mode = true; | |
| 1130 | |
| 1131 if (nargin == 2) | |
| 1132 { | |
| 1133 add_mode = args(1).bool_value (); | |
| 1134 | |
| 1135 if (error_state) | |
| 1136 error ("atexit: second argument must be a logical value"); | |
| 1137 } | |
| 1138 | |
| 1139 if (! error_state) | |
| 1140 { | |
| 1141 if (add_mode) | |
| 7409 | 1142 octave_add_atexit_function (arg); |
| 6680 | 1143 else |
| 1144 { | |
| 7409 | 1145 bool found = octave_remove_atexit_function (arg); |
| 6680 | 1146 |
| 1147 if (nargout > 0) | |
| 1148 retval(0) = found; | |
| 1149 } | |
| 1150 } | |
| 1151 } | |
| 2077 | 1152 else |
| 6680 | 1153 error ("atexit: argument must be a string"); |
| 2077 | 1154 } |
| 1155 else | |
| 5823 | 1156 print_usage (); |
| 2077 | 1157 |
| 1158 return retval; | |
| 1159 } | |
| 1160 | |
| 2689 | 1161 DEFUN (octave_config_info, args, , |
| 3301 | 1162 "-*- texinfo -*-\n\ |
| 1163 @deftypefn {Built-in Function} {} octave_config_info (@var{option})\n\ | |
| 1164 Return a structure containing configuration and installation\n\ | |
| 1165 information for Octave.\n\ | |
| 2689 | 1166 \n\ |
| 3301 | 1167 if @var{option} is a string, return the configuration information for the\n\ |
| 2689 | 1168 specified option.\n\ |
| 1169 \n\ | |
| 3301 | 1170 @end deftypefn") |
| 2162 | 1171 { |
| 2689 | 1172 octave_value retval; |
| 1173 | |
| 4128 | 1174 #if defined (ENABLE_DYNAMIC_LINKING) |
| 2689 | 1175 bool octave_supports_dynamic_linking = true; |
| 1176 #else | |
| 1177 bool octave_supports_dynamic_linking = false; | |
| 1178 #endif | |
| 1179 | |
| 4357 | 1180 static bool initialized = false; |
| 1181 static Octave_map m; | |
| 2162 | 1182 |
| 6274 | 1183 struct conf_info_struct |
| 1184 { | |
| 1185 bool subst_home; | |
| 1186 const char *key; | |
| 1187 const char *val; | |
| 1188 }; | |
| 1189 | |
| 1190 static const conf_info_struct conf_info[] = | |
| 4357 | 1191 { |
| 6274 | 1192 { false, "ALL_CFLAGS", OCTAVE_CONF_ALL_CFLAGS }, |
| 1193 { false, "ALL_CXXFLAGS", OCTAVE_CONF_ALL_CXXFLAGS }, | |
| 1194 { false, "ALL_FFLAGS", OCTAVE_CONF_ALL_FFLAGS }, | |
| 1195 { false, "ALL_LDFLAGS", OCTAVE_CONF_ALL_LDFLAGS }, | |
| 1196 { false, "AR", OCTAVE_CONF_AR }, | |
| 1197 { false, "ARFLAGS", OCTAVE_CONF_ARFLAGS }, | |
| 1198 { false, "BLAS_LIBS", OCTAVE_CONF_BLAS_LIBS }, | |
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1199 { false, "CARBON_LIBS", OCTAVE_CONF_CARBON_LIBS }, |
| 6274 | 1200 { false, "CC", OCTAVE_CONF_CC }, |
| 1201 { false, "CC_VERSION", OCTAVE_CONF_CC_VERSION }, | |
| 1202 { false, "CFLAGS", OCTAVE_CONF_CFLAGS }, | |
| 1203 { false, "CPICFLAG", OCTAVE_CONF_CPICFLAG }, | |
| 1204 { false, "CPPFLAGS", OCTAVE_CONF_CPPFLAGS }, | |
| 1205 { false, "CURL_LIBS", OCTAVE_CONF_CURL_LIBS }, | |
| 1206 { false, "CXX", OCTAVE_CONF_CXX }, | |
| 1207 { false, "CXXCPP", OCTAVE_CONF_CXXCPP }, | |
| 1208 { false, "CXXFLAGS", OCTAVE_CONF_CXXFLAGS }, | |
| 1209 { false, "CXXPICFLAG", OCTAVE_CONF_CXXPICFLAG }, | |
| 1210 { false, "CXX_VERSION", OCTAVE_CONF_CXX_VERSION }, | |
| 1211 { false, "DEFAULT_PAGER", OCTAVE_DEFAULT_PAGER }, | |
| 1212 { false, "DEFS", OCTAVE_CONF_DEFS }, | |
| 1213 { false, "DL_LD", OCTAVE_CONF_DL_LD }, | |
| 1214 { false, "DL_LDFLAGS", OCTAVE_CONF_DL_LDFLAGS }, | |
| 1215 { false, "ENABLE_DYNAMIC_LINKING", OCTAVE_CONF_ENABLE_DYNAMIC_LINKING }, | |
| 1216 { false, "EXEEXT", OCTAVE_CONF_EXEEXT }, | |
| 1217 { false, "F77", OCTAVE_CONF_F77 }, | |
| 1218 { false, "F77_FLOAT_STORE_FLAG", OCTAVE_CONF_F77_FLOAT_STORE_FLAG }, | |
| 1219 { false, "FC", OCTAVE_CONF_FC }, | |
| 1220 { false, "FFLAGS", OCTAVE_CONF_FFLAGS }, | |
| 1221 { false, "FFTW_LIBS", OCTAVE_CONF_FFTW_LIBS }, | |
| 1222 { false, "FLIBS", OCTAVE_CONF_FLIBS }, | |
| 1223 { false, "FPICFLAG", OCTAVE_CONF_FPICFLAG }, | |
| 1224 { false, "GLPK_LIBS", OCTAVE_CONF_GLPK_LIBS }, | |
| 7361 | 1225 { false, "GNUPLOT", OCTAVE_CONF_GNUPLOT }, |
| 6274 | 1226 { false, "INCFLAGS", OCTAVE_CONF_INCFLAGS }, |
| 1227 { false, "LDFLAGS", OCTAVE_CONF_LDFLAGS }, | |
| 1228 { false, "LD_CXX", OCTAVE_CONF_LD_CXX }, | |
| 1229 { false, "LD_STATIC_FLAG", OCTAVE_CONF_LD_STATIC_FLAG }, | |
| 1230 { false, "LEX", OCTAVE_CONF_LEX }, | |
| 1231 { false, "LEXLIB", OCTAVE_CONF_LEXLIB }, | |
| 1232 { false, "LFLAGS", OCTAVE_CONF_LFLAGS }, | |
| 1233 { false, "LIBCRUFT", OCTAVE_CONF_LIBCRUFT }, | |
| 1234 { false, "LIBEXT", OCTAVE_CONF_LIBEXT }, | |
| 1235 { false, "LIBFLAGS", OCTAVE_CONF_LIBFLAGS }, | |
| 1236 { false, "LIBOCTAVE", OCTAVE_CONF_LIBOCTAVE }, | |
| 1237 { false, "LIBOCTINTERP", OCTAVE_CONF_LIBOCTINTERP }, | |
| 1238 { false, "LIBREADLINE", OCTAVE_CONF_LIBREADLINE }, | |
| 1239 { false, "LIBS", OCTAVE_CONF_LIBS }, | |
| 1240 { false, "LN_S", OCTAVE_CONF_LN_S }, | |
|
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1241 { false, "MAGICK_INCFLAGS", OCTAVE_CONF_MAGICK_INCFLAGS }, |
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1242 { false, "MAGICK_LIBS", OCTAVE_CONF_MAGICK_LIBS }, |
| 6274 | 1243 { false, "MKOCTFILE_DL_LDFLAGS", OCTAVE_CONF_MKOCTFILE_DL_LDFLAGS }, |
| 1244 { false, "RANLIB", OCTAVE_CONF_RANLIB }, | |
| 1245 { false, "RDYNAMIC_FLAG", OCTAVE_CONF_RDYNAMIC_FLAG }, | |
| 1246 { false, "RLD_FLAG", OCTAVE_CONF_RLD_FLAG }, | |
| 1247 { false, "SED", OCTAVE_CONF_SED }, | |
| 1248 { false, "SHARED_LIBS", OCTAVE_CONF_SHARED_LIBS }, | |
| 1249 { false, "SHLEXT", OCTAVE_CONF_SHLEXT }, | |
| 1250 { false, "SHLEXT_VER", OCTAVE_CONF_SHLEXT_VER }, | |
| 1251 { false, "SH_LD", OCTAVE_CONF_SH_LD }, | |
| 1252 { false, "SH_LDFLAGS", OCTAVE_CONF_SH_LDFLAGS }, | |
| 1253 { false, "SONAME_FLAGS", OCTAVE_CONF_SONAME_FLAGS }, | |
| 1254 { false, "STATIC_LIBS", OCTAVE_CONF_STATIC_LIBS }, | |
| 1255 { false, "UGLY_DEFS", OCTAVE_CONF_UGLY_DEFS }, | |
| 1256 { false, "USE_64_BIT_IDX_T", OCTAVE_CONF_USE_64_BIT_IDX_T }, | |
|
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1257 { false, "X11_INCFLAGS", OCTAVE_CONF_X11_INCFLAGS }, |
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1258 { false, "X11_LIBS", OCTAVE_CONF_X11_LIBS }, |
| 6274 | 1259 { false, "XTRA_CFLAGS", OCTAVE_CONF_XTRA_CFLAGS }, |
| 1260 { false, "XTRA_CXXFLAGS", OCTAVE_CONF_XTRA_CXXFLAGS }, | |
| 1261 { false, "YACC", OCTAVE_CONF_YACC }, | |
| 1262 { false, "YFLAGS", OCTAVE_CONF_YFLAGS }, | |
| 1263 { false, "api_version", OCTAVE_API_VERSION }, | |
| 1264 { true, "archlibdir", OCTAVE_ARCHLIBDIR }, | |
| 1265 { true, "bindir", OCTAVE_BINDIR }, | |
| 1266 { false, "canonical_host_type", OCTAVE_CANONICAL_HOST_TYPE }, | |
| 1267 { false, "config_opts", OCTAVE_CONF_config_opts }, | |
| 1268 { true, "datadir", OCTAVE_DATADIR }, | |
| 1269 { true, "datarootdir", OCTAVE_DATAROOTDIR }, | |
| 6276 | 1270 { true, "exec_prefix", OCTAVE_EXEC_PREFIX }, |
| 6274 | 1271 { true, "fcnfiledir", OCTAVE_FCNFILEDIR }, |
| 1272 { true, "imagedir", OCTAVE_IMAGEDIR }, | |
| 1273 { true, "includedir", OCTAVE_INCLUDEDIR }, | |
| 1274 { true, "infodir", OCTAVE_INFODIR }, | |
| 6276 | 1275 { true, "infofile", OCTAVE_INFOFILE }, |
| 6274 | 1276 { true, "libdir", OCTAVE_LIBDIR }, |
| 1277 { true, "libexecdir", OCTAVE_LIBEXECDIR }, | |
| 6311 | 1278 { true, "localapiarchlibdir", OCTAVE_LOCALAPIARCHLIBDIR }, |
| 6274 | 1279 { true, "localapifcnfiledir", OCTAVE_LOCALAPIFCNFILEDIR }, |
| 1280 { true, "localapioctfiledir", OCTAVE_LOCALAPIOCTFILEDIR }, | |
| 1281 { true, "localarchlibdir", OCTAVE_LOCALARCHLIBDIR }, | |
| 1282 { true, "localfcnfiledir", OCTAVE_LOCALFCNFILEDIR }, | |
| 1283 { true, "localoctfiledir", OCTAVE_LOCALOCTFILEDIR }, | |
| 1284 { true, "localstartupfiledir", OCTAVE_LOCALSTARTUPFILEDIR }, | |
| 1285 { true, "localverarchlibdir", OCTAVE_LOCALVERARCHLIBDIR }, | |
| 1286 { true, "localverfcnfiledir", OCTAVE_LOCALVERFCNFILEDIR }, | |
| 1287 { true, "localveroctfiledir", OCTAVE_LOCALVEROCTFILEDIR }, | |
| 1288 { true, "man1dir", OCTAVE_MAN1DIR }, | |
| 1289 { false, "man1ext", OCTAVE_MAN1EXT }, | |
| 1290 { true, "mandir", OCTAVE_MANDIR }, | |
| 1291 { true, "octfiledir", OCTAVE_OCTFILEDIR }, | |
|
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1292 { true, "octetcdir", OCTAVE_OCTETCDIR }, |
| 6274 | 1293 { true, "octincludedir", OCTAVE_OCTINCLUDEDIR }, |
| 1294 { true, "octlibdir", OCTAVE_OCTLIBDIR }, | |
| 6276 | 1295 { true, "prefix", OCTAVE_PREFIX }, |
| 6274 | 1296 { true, "startupfiledir", OCTAVE_STARTUPFILEDIR }, |
| 1297 { false, "version", OCTAVE_VERSION }, | |
| 1298 { false, 0, 0 } | |
| 4357 | 1299 }; |
| 1300 | |
| 1301 if (! initialized) | |
| 1302 { | |
| 4675 | 1303 m.assign ("dld", octave_value (octave_supports_dynamic_linking)); |
| 4357 | 1304 |
| 4697 | 1305 oct_mach_info::float_format ff = oct_mach_info::native_float_format (); |
| 1306 m.assign ("float_format", | |
| 1307 octave_value (oct_mach_info::float_format_as_string (ff))); | |
| 1308 | |
| 1309 m.assign ("words_big_endian", | |
| 1310 octave_value (oct_mach_info::words_big_endian ())); | |
| 1311 | |
| 1312 m.assign ("words_little_endian", | |
| 1313 octave_value (oct_mach_info::words_little_endian ())); | |
| 1314 | |
| 4357 | 1315 int i = 0; |
| 4440 | 1316 |
| 1317 while (true) | |
| 4357 | 1318 { |
| 6274 | 1319 const conf_info_struct& elt = conf_info[i++]; |
| 1320 | |
| 1321 const char *key = elt.key; | |
| 4357 | 1322 |
| 1323 if (key) | |
| 6274 | 1324 { |
| 1325 if (elt.subst_home) | |
| 1326 m.assign (key, octave_value (subst_octave_home (elt.val))); | |
| 1327 else | |
| 1328 m.assign (key, octave_value (elt.val)); | |
| 1329 } | |
| 4357 | 1330 else |
| 1331 break; | |
| 1332 } | |
| 1333 | |
| 4691 | 1334 bool unix_system = true; |
| 7013 | 1335 bool mac_system = false; |
| 4691 | 1336 bool windows_system = false; |
| 1337 | |
| 1338 #if defined (WIN32) | |
| 1339 windows_system = true; | |
| 1340 #if !defined (__CYGWIN__) | |
| 1341 unix_system = false; | |
| 1342 #endif | |
| 1343 #endif | |
| 1344 | |
|
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1345 #if defined (OCTAVE_USE_OS_X_API) |
| 7010 | 1346 mac_system = true; |
| 1347 #endif | |
| 1348 | |
| 4691 | 1349 m.assign ("unix", octave_value (unix_system)); |
| 7010 | 1350 m.assign ("mac", octave_value (mac_system)); |
| 4691 | 1351 m.assign ("windows", octave_value (windows_system)); |
| 1352 | |
| 4357 | 1353 initialized = true; |
| 1354 } | |
| 2162 | 1355 |
| 2689 | 1356 int nargin = args.length (); |
| 1357 | |
| 1358 if (nargin == 1) | |
| 1359 { | |
| 3523 | 1360 std::string arg = args(0).string_value (); |
| 2689 | 1361 |
| 1362 if (! error_state) | |
| 4675 | 1363 { |
| 1364 Cell c = m.contents (arg.c_str ()); | |
| 5199 | 1365 |
| 1366 if (c.is_empty ()) | |
| 1367 error ("octave_config_info: no info for `%s'", arg.c_str ()); | |
| 1368 else | |
| 1369 retval = c(0); | |
| 4675 | 1370 } |
| 2689 | 1371 } |
| 1372 else if (nargin == 0) | |
| 4233 | 1373 retval = m; |
| 2689 | 1374 else |
| 5823 | 1375 print_usage (); |
| 2689 | 1376 |
| 1377 return retval; | |
| 2162 | 1378 } |
| 1379 | |
| 1683 | 1380 #if defined (__GNUG__) && defined (DEBUG_NEW_DELETE) |
| 2806 | 1381 |
| 1683 | 1382 int debug_new_delete = 0; |
| 1383 | |
| 1384 typedef void (*vfp)(void); | |
| 1385 extern vfp __new_handler; | |
| 1386 | |
| 1387 void * | |
| 1388 __builtin_new (size_t sz) | |
| 1389 { | |
| 1390 void *p; | |
| 1391 | |
| 1392 /* malloc (0) is unpredictable; avoid it. */ | |
| 1393 if (sz == 0) | |
| 1394 sz = 1; | |
| 2800 | 1395 p = malloc (sz); |
| 1683 | 1396 while (p == 0) |
| 1397 { | |
| 1398 (*__new_handler) (); | |
| 2800 | 1399 p = malloc (sz); |
| 1683 | 1400 } |
| 1401 | |
| 1402 if (debug_new_delete) | |
| 5629 | 1403 std::cerr << "__builtin_new: " << p << std::endl; |
| 1683 | 1404 |
| 1405 return p; | |
| 1406 } | |
| 1407 | |
| 1408 void | |
| 1409 __builtin_delete (void *ptr) | |
| 1410 { | |
| 1411 if (debug_new_delete) | |
| 5629 | 1412 std::cerr << "__builtin_delete: " << ptr << std::endl; |
| 1683 | 1413 |
| 1414 if (ptr) | |
| 1415 free (ptr); | |
| 1416 } | |
| 2806 | 1417 |
| 1683 | 1418 #endif |
| 1419 | |
| 1420 /* | |
| 1421 ;;; Local Variables: *** | |
| 1422 ;;; mode: C++ *** | |
| 1423 ;;; End: *** | |
| 1424 */ |