Mercurial > hg > octave-lyh
annotate src/toplev.cc @ 8011:3100283874d7
improve backtrace error messages
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Tue, 05 Aug 2008 23:09:32 -0400 |
| parents | 0d607e8dbbfa |
| children | b3e667f1ab4c |
| rev | line source |
|---|---|
| 1683 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
| 4 2004, 2005, 2006, 2007 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" |
| 1683 | 53 |
| 2492 | 54 #include <defaults.h> |
| 1683 | 55 #include "defun.h" |
| 56 #include "error.h" | |
| 57 #include "file-io.h" | |
| 58 #include "input.h" | |
| 59 #include "lex.h" | |
| 2492 | 60 #include <oct-conf.h> |
| 1742 | 61 #include "oct-hist.h" |
| 2162 | 62 #include "oct-map.h" |
| 2862 | 63 #include "oct-obj.h" |
| 1683 | 64 #include "pager.h" |
| 65 #include "parse.h" | |
| 66 #include "pathsearch.h" | |
| 67 #include "procstream.h" | |
| 2370 | 68 #include "ov.h" |
| 2985 | 69 #include "pt-jump.h" |
| 2982 | 70 #include "pt-stmt.h" |
| 1683 | 71 #include "sighandlers.h" |
| 72 #include "sysdep.h" | |
| 2693 | 73 #include "syswait.h" |
| 1750 | 74 #include "toplev.h" |
| 1683 | 75 #include "unwind-prot.h" |
| 76 #include "utils.h" | |
| 77 #include "variables.h" | |
| 2492 | 78 #include <version.h> |
| 1683 | 79 |
| 3020 | 80 // TRUE means we are exiting via the builtin exit or quit functions. |
| 81 static bool quitting_gracefully = false; | |
| 1683 | 82 |
| 4217 | 83 // TRUE means we are ready to interpret commands, but not everything |
| 84 // is ready for interactive use. | |
| 85 bool octave_interpreter_ready = false; | |
| 86 | |
| 4172 | 87 // TRUE means we've processed all the init code and we are good to go. |
| 88 bool octave_initialized = false; | |
| 89 | |
| 1683 | 90 // Current command to execute. |
| 91 tree_statement_list *global_command = 0; | |
| 92 | |
| 5743 | 93 octave_call_stack *octave_call_stack::instance = 0; |
| 94 | |
|
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95 int |
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96 octave_call_stack::do_current_line (void) const |
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97 { |
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98 tree_statement *stmt = do_top_statement (); |
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99 |
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100 return stmt ? stmt->line () : -1; |
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101 } |
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102 |
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103 int |
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104 octave_call_stack::do_current_column (void) const |
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105 { |
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106 tree_statement *stmt = do_top_statement (); |
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107 |
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108 return stmt ? stmt->column () : -1; |
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109 } |
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110 |
| 7877 | 111 int |
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112 octave_call_stack::do_caller_user_code_line (void) const |
| 7877 | 113 { |
| 114 int retval = -1; | |
| 115 | |
| 7890 | 116 const_iterator p = cs.end (); |
| 117 | |
| 118 while (p != cs.begin ()) | |
| 7877 | 119 { |
| 7890 | 120 const call_stack_elt& elt = *(--p); |
| 7877 | 121 |
| 122 octave_function *f = elt.fcn; | |
| 123 | |
| 124 if (f && f->is_user_code ()) | |
| 125 { | |
| 126 tree_statement *stmt = elt.stmt; | |
| 127 | |
| 128 if (stmt) | |
| 129 { | |
| 130 retval = stmt->line (); | |
| 131 break; | |
| 132 } | |
| 133 } | |
| 134 } | |
| 135 | |
| 136 return retval; | |
| 137 } | |
| 138 | |
| 139 int | |
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140 octave_call_stack::do_caller_user_code_column (void) const |
| 7877 | 141 { |
| 142 int retval = -1; | |
| 143 | |
| 7890 | 144 const_iterator p = cs.end (); |
| 145 | |
| 146 while (p != cs.begin ()) | |
| 7877 | 147 { |
| 7890 | 148 const call_stack_elt& elt = *(--p); |
| 7877 | 149 |
| 150 octave_function *f = elt.fcn; | |
| 151 | |
| 152 if (f && f->is_user_code ()) | |
| 153 { | |
| 154 tree_statement *stmt = elt.stmt; | |
| 155 | |
| 156 if (stmt) | |
| 157 { | |
| 158 retval = stmt->column (); | |
| 159 break; | |
| 160 } | |
| 161 } | |
| 162 } | |
| 163 | |
| 164 return retval; | |
| 165 } | |
| 166 | |
| 7901 | 167 size_t |
| 168 octave_call_stack::do_num_user_code_frames (octave_idx_type& curr_user_frame) const | |
| 169 { | |
| 170 size_t retval = 0; | |
| 171 | |
| 172 curr_user_frame = 0; | |
| 173 | |
| 174 // Look for the caller of dbstack. | |
| 175 size_t frame = cs[curr_frame].prev; | |
| 176 | |
| 177 bool found = false; | |
| 178 | |
| 179 size_t k = cs.size (); | |
| 180 | |
| 181 for (const_reverse_iterator p = cs.rbegin (); p != cs.rend (); p++) | |
| 182 { | |
| 183 octave_function *f = (*p).fcn; | |
| 184 | |
| 185 if (--k == frame) | |
| 186 found = true; | |
| 187 | |
| 188 if (f && f->is_user_code ()) | |
| 189 { | |
| 190 if (! found) | |
| 191 curr_user_frame++; | |
| 192 | |
| 193 retval++; | |
| 194 } | |
| 195 } | |
| 196 | |
| 197 // We counted how many user frames were not the one, in reverse. | |
| 198 // Now set curr_user_frame to be the index in the other direction. | |
| 199 curr_user_frame = retval - curr_user_frame - 1; | |
| 200 | |
| 201 return retval; | |
| 202 } | |
| 203 | |
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204 octave_user_code * |
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205 octave_call_stack::do_caller_user_code (size_t nskip) const |
| 5744 | 206 { |
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207 octave_user_code *retval = 0; |
| 5744 | 208 |
| 7890 | 209 const_iterator p = cs.end (); |
| 210 | |
| 211 while (p != cs.begin ()) | |
| 5744 | 212 { |
| 7890 | 213 const call_stack_elt& elt = *(--p); |
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214 |
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215 octave_function *f = elt.fcn; |
| 5744 | 216 |
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217 if (f && f->is_user_code ()) |
| 5744 | 218 { |
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219 if (nskip > 0) |
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220 nskip--; |
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221 else |
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222 { |
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223 retval = dynamic_cast<octave_user_code *> (f); |
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224 break; |
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225 } |
| 5744 | 226 } |
| 227 } | |
| 228 | |
| 229 return retval; | |
| 230 } | |
| 231 | |
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232 Octave_map |
| 7901 | 233 octave_call_stack::do_backtrace (size_t nskip, |
| 234 octave_idx_type& curr_user_frame) const | |
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235 { |
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236 Octave_map retval; |
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237 |
| 7901 | 238 size_t user_code_frames = do_num_user_code_frames (curr_user_frame); |
| 239 | |
| 240 size_t nframes = nskip <= user_code_frames ? user_code_frames - nskip : 0; | |
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241 |
| 7901 | 242 // Our list is reversed. |
| 243 curr_user_frame = nframes - curr_user_frame - 1; | |
| 244 | |
| 245 Cell keys (6, 1); | |
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246 |
| 7901 | 247 keys(0) = "file"; |
| 248 keys(1) = "name"; | |
| 249 keys(2) = "line"; | |
| 250 keys(3) = "column"; | |
| 251 keys(4) = "scope"; | |
| 252 keys(5) = "context"; | |
| 7890 | 253 |
| 7901 | 254 Cell file (nframes, 1); |
| 255 Cell name (nframes, 1); | |
| 256 Cell line (nframes, 1); | |
| 257 Cell column (nframes, 1); | |
| 258 Cell scope (nframes, 1); | |
| 259 Cell context (nframes, 1); | |
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260 |
| 7901 | 261 if (nframes > 0) |
| 262 { | |
| 263 int k = 0; | |
| 264 | |
| 265 for (const_reverse_iterator p = cs.rbegin (); p != cs.rend (); p++) | |
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266 { |
| 7901 | 267 const call_stack_elt& elt = *p; |
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268 |
| 7736 | 269 octave_function *f = elt.fcn; |
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270 |
| 7901 | 271 if (f && f->is_user_code ()) |
| 7736 | 272 { |
| 7901 | 273 if (nskip > 0) |
| 274 nskip--; | |
| 7736 | 275 else |
| 276 { | |
| 7901 | 277 scope(k) = elt.scope; |
| 278 context(k) = elt.context; | |
| 279 | |
| 280 file(k) = f->fcn_file_name (); | |
| 281 std::string parent_fcn_name = f->parent_fcn_name (); | |
| 282 if (parent_fcn_name == std::string ()) | |
| 283 name(k) = f->name (); | |
| 284 else | |
| 285 name(k) = f->parent_fcn_name () + Vfilemarker + f->name (); | |
| 286 | |
| 287 tree_statement *stmt = elt.stmt; | |
| 288 | |
| 289 if (stmt) | |
| 290 { | |
| 291 line(k) = stmt->line (); | |
| 292 column(k) = stmt->column (); | |
| 293 } | |
| 294 else | |
| 295 { | |
| 296 line(k) = -1; | |
| 297 column(k) = -1; | |
| 298 } | |
| 299 | |
| 300 k++; | |
| 7736 | 301 } |
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302 } |
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303 } |
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304 |
| 7736 | 305 retval.assign ("file", file); |
| 306 retval.assign ("name", name); | |
| 307 retval.assign ("line", line); | |
| 308 retval.assign ("column", column); | |
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309 retval.assign ("scope", scope); |
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310 retval.assign ("context", context); |
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311 } |
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312 |
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313 return retval; |
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314 } |
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315 |
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316 bool |
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317 octave_call_stack::do_goto_frame (size_t n, bool verbose) |
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318 { |
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319 bool retval = false; |
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320 |
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321 if (n < cs.size ()) |
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322 { |
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323 retval = true; |
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324 |
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325 curr_frame = n; |
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326 |
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327 const call_stack_elt& elt = cs[n]; |
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328 |
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329 symbol_table::set_scope_and_context (elt.scope, elt.context); |
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330 |
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331 if (verbose) |
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332 { |
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333 octave_function *f = elt.fcn; |
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334 std::string nm = f ? f->name () : std::string ("<unknown>"); |
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335 |
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336 tree_statement *s = elt.stmt; |
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337 int l = -1; |
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338 int c = -1; |
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339 if (s) |
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340 { |
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341 l = s->line (); |
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342 c = s->column (); |
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343 } |
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344 |
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345 octave_stdout << "stopped in " << nm |
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346 << " at line " << l << " column " << c |
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347 << " (" << elt.scope << "[" << elt.context << "])" |
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348 << std::endl; |
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349 } |
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350 } |
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351 |
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352 return retval; |
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353 } |
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354 |
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355 bool |
| 7901 | 356 octave_call_stack::do_goto_frame_relative (int nskip, bool verbose) |
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357 { |
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358 bool retval = false; |
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359 |
| 7901 | 360 if (nskip == 0) |
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361 retval = true; |
| 7890 | 362 else |
| 363 { | |
| 7901 | 364 int incr = nskip < 0 ? -1 : 1; |
| 365 | |
| 366 // Start looking with the caller of dbup/dbdown. | |
| 367 size_t frame = cs[curr_frame].prev; | |
| 368 | |
| 369 while (true) | |
| 370 { | |
| 371 if ((incr < 0 && frame == 0) || (incr > 0 && frame == cs.size () - 1)) | |
| 372 break; | |
| 373 | |
| 374 frame += incr; | |
| 375 | |
| 376 const call_stack_elt& elt = cs[frame]; | |
| 377 | |
| 378 octave_function *f = elt.fcn; | |
| 379 | |
| 380 if (f && f->is_user_code ()) | |
| 381 { | |
| 382 if (nskip > 0) | |
| 383 nskip--; | |
| 384 else if (nskip < 0) | |
| 385 nskip++; | |
| 386 | |
| 387 if (nskip == 0) | |
| 388 { | |
| 389 curr_frame = frame; | |
| 390 cs[cs.size () - 1].prev = curr_frame; | |
| 7890 | 391 |
| 7901 | 392 if (verbose) |
| 393 { | |
| 394 tree_statement *s = elt.stmt; | |
| 395 int l = -1; | |
| 396 int c = -1; | |
| 397 if (s) | |
| 398 { | |
| 399 l = s->line (); | |
| 400 c = s->column (); | |
| 401 } | |
| 402 | |
| 403 std::ostringstream buf; | |
| 404 buf << f->name () << ": " << " line " << l | |
| 405 << ", column " << c << std::endl; | |
| 406 | |
| 407 octave_stdout << buf.str (); | |
| 408 } | |
| 409 | |
| 410 retval = true; | |
| 411 break; | |
| 412 } | |
| 413 } | |
| 414 } | |
| 415 | |
| 416 // There is no need to set scope and context here. That will | |
| 417 // happen when the dbup/dbdown frame is popped and we jump to | |
| 418 // the new "prev" frame set above. | |
| 7890 | 419 } |
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420 |
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421 return retval; |
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422 } |
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423 |
| 5744 | 424 void |
| 7901 | 425 octave_call_stack::do_goto_caller_frame (void) |
| 426 { | |
| 427 size_t frame = curr_frame; | |
| 428 | |
| 429 bool skipped = false; | |
| 430 | |
| 431 while (frame != 0) | |
| 432 { | |
| 433 frame = cs[frame].prev; | |
| 434 | |
| 435 const call_stack_elt& elt = cs[frame]; | |
| 436 | |
| 437 octave_function *f = elt.fcn; | |
| 438 | |
| 439 if (f && f->is_user_code ()) | |
| 440 { | |
| 441 if (! skipped) | |
| 442 // We found the current user code frame, so skip it. | |
| 443 skipped = true; | |
| 444 else | |
| 445 { | |
| 446 // We found the caller user code frame. | |
| 447 call_stack_elt tmp (elt); | |
| 448 tmp.prev = curr_frame; | |
| 449 | |
| 450 curr_frame = cs.size (); | |
| 451 | |
| 452 cs.push_back (tmp); | |
| 453 | |
| 454 symbol_table::set_scope_and_context (tmp.scope, tmp.context); | |
| 455 | |
| 456 break; | |
| 457 } | |
| 458 } | |
| 459 } | |
| 460 } | |
| 461 | |
| 462 void | |
| 463 octave_call_stack::do_goto_base_frame (void) | |
| 464 { | |
| 465 call_stack_elt tmp (cs[0]); | |
| 466 tmp.prev = curr_frame; | |
| 467 | |
| 468 curr_frame = cs.size (); | |
| 469 | |
| 470 cs.push_back (tmp); | |
| 471 | |
| 472 symbol_table::set_scope_and_context (tmp.scope, tmp.context); | |
| 473 } | |
| 474 | |
| 475 void | |
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476 octave_call_stack::backtrace_error_message (void) const |
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477 { |
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478 if (error_state > 0) |
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479 { |
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480 error_state = -1; |
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481 |
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482 error ("called from:"); |
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483 } |
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484 |
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485 if (! cs.empty ()) |
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486 { |
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487 const call_stack_elt& elt = cs.back (); |
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488 |
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489 octave_function *fcn = elt.fcn; |
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490 tree_statement *stmt = elt.stmt; |
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491 |
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492 std::string fcn_name = "?unknown?"; |
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493 |
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494 if (fcn) |
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495 { |
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496 fcn_name = fcn->fcn_file_name (); |
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497 |
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498 if (fcn_name.empty ()) |
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499 fcn_name = fcn->name (); |
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500 } |
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501 |
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502 int line = stmt ? stmt->line () : -1; |
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503 int column = stmt ? stmt->column () : -1; |
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504 |
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505 error (" %s at line %d, column %d", |
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506 fcn_name.c_str (), line, column); |
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507 } |
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508 } |
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509 |
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510 void |
| 4180 | 511 recover_from_exception (void) |
| 512 { | |
| 513 can_interrupt = true; | |
| 4182 | 514 octave_interrupt_immediately = 0; |
| 4180 | 515 octave_interrupt_state = 0; |
| 5142 | 516 octave_signal_caught = 0; |
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517 octave_exception_state = octave_no_exception; |
| 4180 | 518 octave_restore_signal_mask (); |
| 519 octave_catch_interrupts (); | |
| 520 } | |
| 521 | |
| 1907 | 522 int |
| 5189 | 523 main_loop (void) |
| 1907 | 524 { |
| 2016 | 525 octave_save_signal_mask (); |
| 526 | |
| 3020 | 527 can_interrupt = true; |
| 1907 | 528 |
| 5142 | 529 octave_signal_hook = octave_signal_handler; |
| 4429 | 530 octave_interrupt_hook = unwind_protect::run_all; |
| 531 octave_bad_alloc_hook = unwind_protect::run_all; | |
| 532 | |
| 2554 | 533 octave_catch_interrupts (); |
| 1907 | 534 |
| 4172 | 535 octave_initialized = true; |
| 536 | |
| 1907 | 537 // The big loop. |
| 538 | |
| 4153 | 539 int retval = 0; |
| 1907 | 540 do |
| 541 { | |
| 4180 | 542 try |
| 1907 | 543 { |
| 7336 | 544 symbol_table::reset_scope (); |
| 2620 | 545 |
| 4318 | 546 reset_error_handler (); |
| 547 | |
| 4153 | 548 reset_parser (); |
| 2620 | 549 |
| 4753 | 550 // This is the same as yyparse in parse.y. |
| 551 retval = octave_parse (); | |
| 2620 | 552 |
| 4153 | 553 if (retval == 0) |
| 554 { | |
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555 if (global_command) |
| 3804 | 556 { |
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557 global_command->eval (); |
| 3883 | 558 |
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559 delete global_command; |
| 3883 | 560 |
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561 global_command = 0; |
| 3883 | 562 |
| 4171 | 563 OCTAVE_QUIT; |
| 564 | |
| 3883 | 565 if (! (interactive || forced_interactive)) |
| 566 { | |
| 4207 | 567 bool quit = (tree_return_command::returning |
| 568 || tree_break_command::breaking); | |
| 4153 | 569 |
| 4207 | 570 if (tree_return_command::returning) |
| 571 tree_return_command::returning = 0; | |
| 4153 | 572 |
| 4207 | 573 if (tree_break_command::breaking) |
| 574 tree_break_command::breaking--; | |
| 4153 | 575 |
| 576 if (quit) | |
| 577 break; | |
| 578 } | |
| 579 | |
| 580 if (error_state) | |
| 581 { | |
| 582 if (! (interactive || forced_interactive)) | |
| 583 { | |
| 584 // We should exit with a non-zero status. | |
| 585 retval = 1; | |
| 586 break; | |
| 587 } | |
| 588 } | |
| 589 else | |
| 590 { | |
| 591 if (octave_completion_matches_called) | |
| 592 octave_completion_matches_called = false; | |
| 593 else | |
| 594 command_editor::increment_current_command_number (); | |
| 3883 | 595 } |
| 596 } | |
| 4153 | 597 else if (parser_end_of_input) |
| 598 break; | |
| 2620 | 599 } |
| 4153 | 600 } |
| 4182 | 601 catch (octave_interrupt_exception) |
| 4153 | 602 { |
| 4180 | 603 recover_from_exception (); |
| 5629 | 604 octave_stdout << "\n"; |
| 4180 | 605 } |
| 4181 | 606 catch (std::bad_alloc) |
| 4180 | 607 { |
| 608 recover_from_exception (); | |
| 609 std::cerr | |
| 6680 | 610 << "error: memory exhausted or requested size too large for range of Octave's index type -- trying to return to prompt" |
| 611 << std::endl; | |
| 1907 | 612 } |
| 613 } | |
| 614 while (retval == 0); | |
| 615 | |
| 616 return retval; | |
| 617 } | |
| 618 | |
| 1683 | 619 // Fix up things before exiting. |
| 620 | |
| 621 void | |
| 3162 | 622 clean_up_and_exit (int retval) |
| 623 { | |
| 3216 | 624 do_octave_atexit (); |
| 1683 | 625 |
| 5451 | 626 sysdep_cleanup (); |
| 627 | |
| 3162 | 628 exit (retval == EOF ? 0 : retval); |
| 1683 | 629 } |
| 630 | |
| 3180 | 631 DEFUN (quit, args, nargout, |
| 3332 | 632 "-*- texinfo -*-\n\ |
| 633 @deftypefn {Built-in Function} {} exit (@var{status})\n\ | |
| 634 @deftypefnx {Built-in Function} {} quit (@var{status})\n\ | |
| 635 Exit the current Octave session. If the optional integer value\n\ | |
| 636 @var{status} is supplied, pass that value to the operating system as the\n\ | |
| 6615 | 637 Octave's exit status. The default value is zero.\n\ |
| 3333 | 638 @end deftypefn") |
| 1683 | 639 { |
| 2086 | 640 octave_value_list retval; |
| 2068 | 641 |
| 3180 | 642 if (nargout == 0) |
| 2068 | 643 { |
| 3180 | 644 int exit_status = 0; |
| 645 | |
| 646 quitting_gracefully = true; | |
| 1683 | 647 |
| 3180 | 648 if (args.length () > 0) |
| 649 { | |
| 3202 | 650 int tmp = args(0).nint_value (); |
| 1683 | 651 |
| 3202 | 652 if (! error_state) |
| 653 exit_status = tmp; | |
| 3180 | 654 } |
| 655 | |
| 656 clean_up_and_exit (exit_status); | |
| 2068 | 657 } |
| 3180 | 658 else |
| 659 error ("quit: invalid number of output arguments"); | |
| 2068 | 660 |
| 1683 | 661 return retval; |
| 662 } | |
| 663 | |
| 664 DEFALIAS (exit, quit); | |
| 665 | |
| 1957 | 666 DEFUN (warranty, , , |
| 3446 | 667 "-*- texinfo -*-\n\ |
| 668 @deftypefn {Built-in Function} {} warranty ()\n\ | |
| 669 Describe the conditions for copying and distributing Octave.\n\ | |
| 670 @end deftypefn") | |
| 1683 | 671 { |
| 2086 | 672 octave_value_list retval; |
| 1683 | 673 |
| 3922 | 674 octave_stdout << "\n" \ |
| 675 OCTAVE_NAME_VERSION_AND_COPYRIGHT "\n\ | |
| 676 \n\ | |
| 1683 | 677 This program is free software; you can redistribute it and/or modify\n\ |
| 678 it under the terms of the GNU General Public License as published by\n\ | |
| 7016 | 679 the Free Software Foundation; either version 3 of the License, or\n\ |
| 1683 | 680 (at your option) any later version.\n\ |
| 681 \n\ | |
| 682 This program is distributed in the hope that it will be useful,\n\ | |
| 683 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\ | |
| 684 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\ | |
| 685 GNU General Public License for more details.\n\ | |
| 686 \n\ | |
| 687 You should have received a copy of the GNU General Public License\n\ | |
| 7016 | 688 along with this program. If not, see <http://www.gnu.org/licenses/>.\n\ |
| 1683 | 689 \n"; |
| 690 | |
| 691 return retval; | |
| 692 } | |
| 693 | |
| 694 // Execute a shell command. | |
| 695 | |
| 1965 | 696 static void |
| 697 cleanup_iprocstream (void *p) | |
| 698 { | |
| 3060 | 699 iprocstream *cmd = static_cast<iprocstream *> (p); |
| 700 | |
| 701 octave_child_list::remove (cmd->pid ()); | |
| 702 | |
| 703 delete cmd; | |
| 1965 | 704 } |
| 705 | |
| 6316 | 706 static int |
| 707 wait_for_input (int fid) | |
| 708 { | |
| 709 int retval = -1; | |
| 710 | |
| 711 #if defined (HAVE_SELECT) | |
| 712 if (fid >= 0) | |
| 713 { | |
| 714 fd_set set; | |
| 715 | |
| 716 FD_ZERO (&set); | |
| 717 FD_SET (fid, &set); | |
| 718 | |
| 719 retval = select (FD_SETSIZE, &set, 0, 0, 0); | |
| 720 } | |
| 721 #else | |
| 722 retval = 1; | |
| 723 #endif | |
| 724 | |
| 725 return retval; | |
| 726 } | |
| 727 | |
| 2086 | 728 static octave_value_list |
| 3523 | 729 run_command_and_return_output (const std::string& cmd_str) |
| 2083 | 730 { |
| 2086 | 731 octave_value_list retval; |
| 2083 | 732 |
| 733 iprocstream *cmd = new iprocstream (cmd_str.c_str ()); | |
| 734 | |
| 3060 | 735 if (cmd) |
| 2083 | 736 { |
| 3060 | 737 unwind_protect::add (cleanup_iprocstream, cmd); |
| 738 | |
| 739 if (*cmd) | |
| 740 { | |
| 6316 | 741 int fid = cmd->file_number (); |
| 2095 | 742 |
| 6316 | 743 std::ostringstream output_buf; |
| 4494 | 744 |
| 3060 | 745 char ch; |
| 3147 | 746 |
| 4489 | 747 for (;;) |
| 3147 | 748 { |
| 4489 | 749 if (cmd->get (ch)) |
| 750 output_buf.put (ch); | |
| 751 else | |
| 752 { | |
| 753 if (! cmd->eof () && errno == EAGAIN) | |
| 754 { | |
| 755 cmd->clear (); | |
| 3147 | 756 |
| 6316 | 757 if (wait_for_input (fid) != 1) |
| 758 break; | |
| 4489 | 759 } |
| 760 else | |
| 761 break; | |
| 762 } | |
| 3147 | 763 } |
| 764 | |
| 3252 | 765 int cmd_status = cmd->close (); |
| 2083 | 766 |
| 3060 | 767 if (WIFEXITED (cmd_status)) |
| 768 cmd_status = WEXITSTATUS (cmd_status); | |
| 769 else | |
| 770 cmd_status = 127; | |
| 2083 | 771 |
| 5659 | 772 retval(0) = (double) cmd_status; |
| 5765 | 773 retval(1) = output_buf.str (); |
| 3060 | 774 } |
| 775 | |
| 776 unwind_protect::run (); | |
| 2083 | 777 } |
| 778 else | |
| 779 error ("unable to start subprocess for `%s'", cmd_str.c_str ()); | |
| 780 | |
| 781 return retval; | |
| 782 } | |
| 783 | |
| 5285 | 784 enum system_exec_type { et_sync, et_async }; |
| 785 | |
| 1957 | 786 DEFUN (system, args, nargout, |
| 3301 | 787 "-*- texinfo -*-\n\ |
| 788 @deftypefn {Built-in Function} {} system (@var{string}, @var{return_output}, @var{type})\n\ | |
| 789 Execute a shell command specified by @var{string}. The second\n\ | |
| 790 argument is optional. If @var{type} is @code{\"async\"}, the process\n\ | |
| 791 is started in the background and the process id of the child process\n\ | |
| 792 is returned immediately. Otherwise, the process is started, and\n\ | |
| 793 Octave waits until it exits. If @var{type} argument is omitted, a\n\ | |
| 794 value of @code{\"sync\"} is assumed.\n\ | |
| 2083 | 795 \n\ |
| 3301 | 796 If two input arguments are given (the actual value of\n\ |
| 797 @var{return_output} is irrelevant) and the subprocess is started\n\ | |
| 798 synchronously, or if @var{system} is called with one input argument and\n\ | |
| 799 one or more output arguments, the output from the command is returned.\n\ | |
| 5097 | 800 Otherwise, if the subprocess is executed synchronously, its output is\n\ |
| 2321 | 801 sent to the standard output. To send the output of a command executed\n\ |
| 3301 | 802 with @var{system} through the pager, use a command like\n\ |
| 2321 | 803 \n\ |
| 3301 | 804 @example\n\ |
| 805 disp (system (cmd, 1));\n\ | |
| 806 @end example\n\ | |
| 2321 | 807 \n\ |
| 3301 | 808 @noindent\n\ |
| 2321 | 809 or\n\ |
| 810 \n\ | |
| 3301 | 811 @example\n\ |
| 812 printf (\"%s\n\", system (cmd, 1));\n\ | |
| 813 @end example\n\ | |
| 814 \n\ | |
| 5659 | 815 The @code{system} function can return two values. The first is the\n\ |
| 816 exit status of the command and the second is any output from the\n\ | |
| 817 command that was written to the standard output stream. For example,\n\ | |
| 3301 | 818 \n\ |
| 819 @example\n\ | |
| 5717 | 820 [status, output] = system (\"echo foo; exit 2\");\n\ |
| 3301 | 821 @end example\n\ |
| 822 \n\ | |
| 823 @noindent\n\ | |
| 824 will set the variable @code{output} to the string @samp{foo}, and the\n\ | |
| 825 variable @code{status} to the integer @samp{2}.\n\ | |
| 826 @end deftypefn") | |
| 1683 | 827 { |
| 2086 | 828 octave_value_list retval; |
| 1683 | 829 |
| 3834 | 830 unwind_protect::begin_frame ("Fsystem"); |
| 831 | |
| 1683 | 832 int nargin = args.length (); |
| 833 | |
| 2083 | 834 if (nargin > 0 && nargin < 4) |
| 1683 | 835 { |
| 5672 | 836 bool return_output = (nargout > 1 || nargin > 1); |
| 2083 | 837 |
| 3523 | 838 std::string cmd_str = args(0).string_value (); |
| 2083 | 839 |
| 5285 | 840 system_exec_type type = et_sync; |
| 2083 | 841 |
| 842 if (! error_state) | |
| 843 { | |
| 844 if (nargin > 2) | |
| 845 { | |
| 3523 | 846 std::string type_str = args(2).string_value (); |
| 1683 | 847 |
| 2083 | 848 if (! error_state) |
| 849 { | |
| 850 if (type_str == "sync") | |
| 5285 | 851 type = et_sync; |
| 2083 | 852 else if (type_str == "async") |
| 5285 | 853 type = et_async; |
| 2083 | 854 else |
| 855 error ("system: third arg must be \"sync\" or \"async\""); | |
| 856 } | |
| 857 else | |
| 858 error ("system: third argument must be a string"); | |
| 859 } | |
| 860 } | |
| 861 else | |
| 3523 | 862 error ("system: expecting std::string as first argument"); |
| 1683 | 863 |
| 2083 | 864 if (! error_state) |
| 865 { | |
| 7104 | 866 #if defined (__WIN32__) && ! defined (__CYGWIN__) |
| 867 // Work around weird double-quote handling on Windows systems. | |
| 868 if (type == et_sync) | |
| 869 cmd_str = "\"" + cmd_str + "\""; | |
| 870 #endif | |
| 871 | |
| 5285 | 872 if (type == et_async) |
| 2083 | 873 { |
| 6222 | 874 // FIXME -- maybe this should go in sysdep.cc? |
| 4086 | 875 #ifdef HAVE_FORK |
| 2083 | 876 pid_t pid = fork (); |
| 877 | |
| 878 if (pid < 0) | |
| 879 error ("system: fork failed -- can't create child process"); | |
| 880 else if (pid == 0) | |
| 881 { | |
| 5775 | 882 // FIXME -- should probably replace this |
| 3273 | 883 // call with something portable. |
| 884 | |
| 5510 | 885 execl ("/bin/sh", "sh", "-c", cmd_str.c_str (), |
| 886 static_cast<void *> (0)); | |
| 3273 | 887 |
| 888 panic_impossible (); | |
| 2083 | 889 } |
| 890 else | |
| 4254 | 891 retval(0) = pid; |
| 6222 | 892 #elif defined (__WIN32__) |
| 893 STARTUPINFO si; | |
| 894 PROCESS_INFORMATION pi; | |
| 895 ZeroMemory (&si, sizeof (si)); | |
| 896 ZeroMemory (&pi, sizeof (pi)); | |
| 897 OCTAVE_LOCAL_BUFFER (char, xcmd_str, cmd_str.length()+1); | |
| 6676 | 898 strcpy (xcmd_str, cmd_str.c_str ()); |
| 6222 | 899 |
| 900 if (! CreateProcess (0, xcmd_str, 0, 0, FALSE, 0, 0, 0, &si, &pi)) | |
| 901 error ("system: CreateProcess failed -- can't create child process"); | |
| 902 else | |
| 903 { | |
| 904 retval(0) = pi.dwProcessId; | |
| 905 CloseHandle (pi.hProcess); | |
| 906 CloseHandle (pi.hThread); | |
| 907 } | |
| 4086 | 908 #else |
| 909 error ("asynchronous system calls are not supported"); | |
| 910 #endif | |
| 2083 | 911 } |
| 2321 | 912 else if (return_output) |
| 913 retval = run_command_and_return_output (cmd_str); | |
| 2083 | 914 else |
| 2321 | 915 { |
| 916 int status = system (cmd_str.c_str ()); | |
| 917 | |
| 918 // The value in status is as returned by waitpid. If | |
| 919 // the process exited normally, extract the actual exit | |
| 920 // status of the command. Otherwise, return 127 as a | |
| 921 // failure code. | |
| 922 | |
| 2693 | 923 if (WIFEXITED (status)) |
| 924 status = WEXITSTATUS (status); | |
| 2321 | 925 |
| 4233 | 926 retval(0) = status; |
| 2321 | 927 } |
| 2083 | 928 } |
| 1683 | 929 } |
| 930 else | |
| 5823 | 931 print_usage (); |
| 1683 | 932 |
| 3834 | 933 unwind_protect::run_frame ("Fsystem"); |
| 934 | |
| 1683 | 935 return retval; |
| 936 } | |
| 937 | |
| 938 DEFALIAS (shell_cmd, system); | |
| 939 | |
| 5775 | 940 // FIXME -- this should really be static, but that causes |
| 2614 | 941 // problems on some systems. |
| 6680 | 942 std::list<std::string> octave_atexit_functions; |
| 2077 | 943 |
| 944 void | |
| 945 do_octave_atexit (void) | |
| 946 { | |
| 3216 | 947 static bool deja_vu = false; |
| 948 | |
| 2077 | 949 while (! octave_atexit_functions.empty ()) |
| 950 { | |
| 6680 | 951 std::string fcn = octave_atexit_functions.front (); |
| 4214 | 952 |
| 6680 | 953 octave_atexit_functions.pop_front (); |
| 2077 | 954 |
| 5237 | 955 reset_error_handler (); |
| 956 | |
| 4233 | 957 feval (fcn, octave_value_list (), 0); |
| 3215 | 958 |
| 959 flush_octave_stdout (); | |
| 2077 | 960 } |
| 3216 | 961 |
| 962 if (! deja_vu) | |
| 963 { | |
| 964 deja_vu = true; | |
| 965 | |
| 6068 | 966 // Do this explicitly so that destructors for mex file objects |
| 967 // are called, so that functions registered with mexAtExit are | |
| 968 // called. | |
| 6072 | 969 clear_mex_functions (); |
| 6068 | 970 |
| 3216 | 971 command_editor::restore_terminal_state (); |
| 972 | |
| 5775 | 973 // FIXME -- is this needed? Can it cause any trouble? |
| 3216 | 974 raw_mode (0); |
| 975 | |
| 5305 | 976 octave_history_write_timestamp (); |
| 977 | |
| 3216 | 978 command_history::clean_up_and_save (); |
| 979 | |
| 980 close_files (); | |
| 981 | |
| 982 cleanup_tmp_files (); | |
| 983 | |
| 984 flush_octave_stdout (); | |
| 985 | |
| 5305 | 986 if (! quitting_gracefully && (interactive || forced_interactive)) |
| 5629 | 987 { |
| 988 octave_stdout << "\n"; | |
| 989 | |
| 990 // Yes, we want this to be separate from the call to | |
| 991 // flush_octave_stdout above. | |
| 992 | |
| 993 flush_octave_stdout (); | |
| 994 } | |
| 3216 | 995 } |
| 2077 | 996 } |
| 997 | |
| 7409 | 998 void |
| 999 octave_add_atexit_function (const std::string& fname) | |
| 1000 { | |
| 1001 octave_atexit_functions.push_front (fname); | |
| 1002 } | |
| 1003 | |
| 1004 bool | |
| 1005 octave_remove_atexit_function (const std::string& fname) | |
| 1006 { | |
| 1007 bool found = false; | |
| 1008 | |
| 1009 for (std::list<std::string>::iterator p = octave_atexit_functions.begin (); | |
| 1010 p != octave_atexit_functions.end (); p++) | |
| 1011 { | |
| 1012 if (*p == fname) | |
| 1013 { | |
| 1014 octave_atexit_functions.erase (p); | |
| 1015 found = true; | |
| 1016 break; | |
| 1017 } | |
| 1018 } | |
| 1019 | |
| 1020 return found; | |
| 1021 } | |
| 1022 | |
| 1023 | |
| 6680 | 1024 DEFUN (atexit, args, nargout, |
| 3332 | 1025 "-*- texinfo -*-\n\ |
| 1026 @deftypefn {Built-in Function} {} atexit (@var{fcn})\n\ | |
| 1027 Register a function to be called when Octave exits. For example,\n\ | |
| 2077 | 1028 \n\ |
| 3332 | 1029 @example\n\ |
| 1030 @group\n\ | |
| 6620 | 1031 function bye_bye ()\n\ |
| 1032 disp (\"Bye bye\");\n\ | |
| 3332 | 1033 endfunction\n\ |
| 6620 | 1034 atexit (\"bye_bye\");\n\ |
| 3332 | 1035 @end group\n\ |
| 1036 @end example\n\ | |
| 1037 \n\ | |
| 1038 @noindent\n\ | |
| 6620 | 1039 will print the message \"Bye bye\" when Octave exits.\n\ |
| 6680 | 1040 \n\ |
| 1041 @deftypefnx {Built-in Function} {} atexit (@var{fcn}, @var{flag})\n\ | |
| 1042 Register or unregister a function to be called when Octave exits,\n\ | |
| 1043 depending on @var{flag}. If @var{flag} is true, the function is\n\ | |
| 1044 registered, if @var{flag} is false, it is unregistered. For example,\n\ | |
| 1045 after registering the function @code{bye_bye} as above,\n\ | |
| 1046 \n\ | |
| 1047 @example\n\ | |
| 1048 atexit (\"bye_bye\", false);\n\ | |
| 1049 @end example\n\ | |
| 1050 \n\ | |
| 1051 @noindent\n\ | |
| 1052 will remove the function from the list and Octave will not call\n\ | |
| 1053 the function @code{bye_by} when it exits.\n\ | |
| 1054 \n\ | |
| 7001 | 1055 Note that @code{atexit} only removes the first occurrence of a function\n\ |
| 6680 | 1056 from the list, so if a function was placed in the list multiple\n\ |
| 1057 times with @code{atexit}, it must also be removed from the list\n\ | |
| 1058 multiple times.\n\ | |
| 3333 | 1059 @end deftypefn") |
| 2077 | 1060 { |
| 2086 | 1061 octave_value_list retval; |
| 2077 | 1062 |
| 1063 int nargin = args.length (); | |
| 1064 | |
| 6680 | 1065 if (nargin == 1 || nargin == 2) |
| 2077 | 1066 { |
| 3523 | 1067 std::string arg = args(0).string_value (); |
| 2077 | 1068 |
| 1069 if (! error_state) | |
| 6680 | 1070 { |
| 1071 bool add_mode = true; | |
| 1072 | |
| 1073 if (nargin == 2) | |
| 1074 { | |
| 1075 add_mode = args(1).bool_value (); | |
| 1076 | |
| 1077 if (error_state) | |
| 1078 error ("atexit: second argument must be a logical value"); | |
| 1079 } | |
| 1080 | |
| 1081 if (! error_state) | |
| 1082 { | |
| 1083 if (add_mode) | |
| 7409 | 1084 octave_add_atexit_function (arg); |
| 6680 | 1085 else |
| 1086 { | |
| 7409 | 1087 bool found = octave_remove_atexit_function (arg); |
| 6680 | 1088 |
| 1089 if (nargout > 0) | |
| 1090 retval(0) = found; | |
| 1091 } | |
| 1092 } | |
| 1093 } | |
| 2077 | 1094 else |
| 6680 | 1095 error ("atexit: argument must be a string"); |
| 2077 | 1096 } |
| 1097 else | |
| 5823 | 1098 print_usage (); |
| 2077 | 1099 |
| 1100 return retval; | |
| 1101 } | |
| 1102 | |
| 2689 | 1103 DEFUN (octave_config_info, args, , |
| 3301 | 1104 "-*- texinfo -*-\n\ |
| 1105 @deftypefn {Built-in Function} {} octave_config_info (@var{option})\n\ | |
| 1106 Return a structure containing configuration and installation\n\ | |
| 1107 information for Octave.\n\ | |
| 2689 | 1108 \n\ |
| 3301 | 1109 if @var{option} is a string, return the configuration information for the\n\ |
| 2689 | 1110 specified option.\n\ |
| 1111 \n\ | |
| 3301 | 1112 @end deftypefn") |
| 2162 | 1113 { |
| 2689 | 1114 octave_value retval; |
| 1115 | |
| 4128 | 1116 #if defined (ENABLE_DYNAMIC_LINKING) |
| 2689 | 1117 bool octave_supports_dynamic_linking = true; |
| 1118 #else | |
| 1119 bool octave_supports_dynamic_linking = false; | |
| 1120 #endif | |
| 1121 | |
| 4357 | 1122 static bool initialized = false; |
| 1123 static Octave_map m; | |
| 2162 | 1124 |
| 6274 | 1125 struct conf_info_struct |
| 1126 { | |
| 1127 bool subst_home; | |
| 1128 const char *key; | |
| 1129 const char *val; | |
| 1130 }; | |
| 1131 | |
| 1132 static const conf_info_struct conf_info[] = | |
| 4357 | 1133 { |
| 6274 | 1134 { false, "ALL_CFLAGS", OCTAVE_CONF_ALL_CFLAGS }, |
| 1135 { false, "ALL_CXXFLAGS", OCTAVE_CONF_ALL_CXXFLAGS }, | |
| 1136 { false, "ALL_FFLAGS", OCTAVE_CONF_ALL_FFLAGS }, | |
| 1137 { false, "ALL_LDFLAGS", OCTAVE_CONF_ALL_LDFLAGS }, | |
| 1138 { false, "AR", OCTAVE_CONF_AR }, | |
| 1139 { false, "ARFLAGS", OCTAVE_CONF_ARFLAGS }, | |
| 1140 { false, "BLAS_LIBS", OCTAVE_CONF_BLAS_LIBS }, | |
| 1141 { false, "CC", OCTAVE_CONF_CC }, | |
| 1142 { false, "CC_VERSION", OCTAVE_CONF_CC_VERSION }, | |
| 1143 { false, "CFLAGS", OCTAVE_CONF_CFLAGS }, | |
| 1144 { false, "CPICFLAG", OCTAVE_CONF_CPICFLAG }, | |
| 1145 { false, "CPPFLAGS", OCTAVE_CONF_CPPFLAGS }, | |
| 1146 { false, "CURL_LIBS", OCTAVE_CONF_CURL_LIBS }, | |
| 1147 { false, "CXX", OCTAVE_CONF_CXX }, | |
| 1148 { false, "CXXCPP", OCTAVE_CONF_CXXCPP }, | |
| 1149 { false, "CXXFLAGS", OCTAVE_CONF_CXXFLAGS }, | |
| 1150 { false, "CXXPICFLAG", OCTAVE_CONF_CXXPICFLAG }, | |
| 1151 { false, "CXX_VERSION", OCTAVE_CONF_CXX_VERSION }, | |
| 1152 { false, "DEFAULT_PAGER", OCTAVE_DEFAULT_PAGER }, | |
| 1153 { false, "DEFS", OCTAVE_CONF_DEFS }, | |
| 1154 { false, "DL_LD", OCTAVE_CONF_DL_LD }, | |
| 1155 { false, "DL_LDFLAGS", OCTAVE_CONF_DL_LDFLAGS }, | |
| 1156 { false, "ENABLE_DYNAMIC_LINKING", OCTAVE_CONF_ENABLE_DYNAMIC_LINKING }, | |
| 1157 { false, "EXEEXT", OCTAVE_CONF_EXEEXT }, | |
| 1158 { false, "F2C", OCTAVE_CONF_F2C }, | |
| 1159 { false, "F2CFLAGS", OCTAVE_CONF_F2CFLAGS }, | |
| 1160 { false, "F77", OCTAVE_CONF_F77 }, | |
| 1161 { false, "F77_FLOAT_STORE_FLAG", OCTAVE_CONF_F77_FLOAT_STORE_FLAG }, | |
| 1162 { false, "FC", OCTAVE_CONF_FC }, | |
| 1163 { false, "FFLAGS", OCTAVE_CONF_FFLAGS }, | |
| 1164 { false, "FFTW_LIBS", OCTAVE_CONF_FFTW_LIBS }, | |
| 1165 { false, "FLIBS", OCTAVE_CONF_FLIBS }, | |
| 1166 { false, "FPICFLAG", OCTAVE_CONF_FPICFLAG }, | |
| 1167 { false, "GLPK_LIBS", OCTAVE_CONF_GLPK_LIBS }, | |
| 7361 | 1168 { false, "GNUPLOT", OCTAVE_CONF_GNUPLOT }, |
| 6274 | 1169 { false, "INCFLAGS", OCTAVE_CONF_INCFLAGS }, |
| 1170 { false, "LDFLAGS", OCTAVE_CONF_LDFLAGS }, | |
| 1171 { false, "LD_CXX", OCTAVE_CONF_LD_CXX }, | |
| 1172 { false, "LD_STATIC_FLAG", OCTAVE_CONF_LD_STATIC_FLAG }, | |
| 1173 { false, "LEX", OCTAVE_CONF_LEX }, | |
| 1174 { false, "LEXLIB", OCTAVE_CONF_LEXLIB }, | |
| 1175 { false, "LFLAGS", OCTAVE_CONF_LFLAGS }, | |
| 1176 { false, "LIBCRUFT", OCTAVE_CONF_LIBCRUFT }, | |
| 1177 { false, "LIBEXT", OCTAVE_CONF_LIBEXT }, | |
| 1178 { false, "LIBFLAGS", OCTAVE_CONF_LIBFLAGS }, | |
| 1179 { false, "LIBOCTAVE", OCTAVE_CONF_LIBOCTAVE }, | |
| 1180 { false, "LIBOCTINTERP", OCTAVE_CONF_LIBOCTINTERP }, | |
| 1181 { false, "LIBREADLINE", OCTAVE_CONF_LIBREADLINE }, | |
| 1182 { false, "LIBS", OCTAVE_CONF_LIBS }, | |
| 1183 { false, "LN_S", OCTAVE_CONF_LN_S }, | |
|
7926
d74f996e005d
__magick_read__.cc: configuration and style fixes
John W. Eaton <jwe@octave.org>
parents:
7923
diff
changeset
|
1184 { false, "MAGICK_INCFLAGS", OCTAVE_CONF_MAGICK_INCFLAGS }, |
|
d74f996e005d
__magick_read__.cc: configuration and style fixes
John W. Eaton <jwe@octave.org>
parents:
7923
diff
changeset
|
1185 { false, "MAGICK_LIBS", OCTAVE_CONF_MAGICK_LIBS }, |
| 6274 | 1186 { false, "MKOCTFILE_DL_LDFLAGS", OCTAVE_CONF_MKOCTFILE_DL_LDFLAGS }, |
| 1187 { false, "RANLIB", OCTAVE_CONF_RANLIB }, | |
| 1188 { false, "RDYNAMIC_FLAG", OCTAVE_CONF_RDYNAMIC_FLAG }, | |
| 1189 { false, "RLD_FLAG", OCTAVE_CONF_RLD_FLAG }, | |
| 1190 { false, "SED", OCTAVE_CONF_SED }, | |
| 1191 { false, "SHARED_LIBS", OCTAVE_CONF_SHARED_LIBS }, | |
| 1192 { false, "SHLEXT", OCTAVE_CONF_SHLEXT }, | |
| 1193 { false, "SHLEXT_VER", OCTAVE_CONF_SHLEXT_VER }, | |
| 1194 { false, "SH_LD", OCTAVE_CONF_SH_LD }, | |
| 1195 { false, "SH_LDFLAGS", OCTAVE_CONF_SH_LDFLAGS }, | |
| 1196 { false, "SONAME_FLAGS", OCTAVE_CONF_SONAME_FLAGS }, | |
| 1197 { false, "STATIC_LIBS", OCTAVE_CONF_STATIC_LIBS }, | |
| 1198 { false, "UGLY_DEFS", OCTAVE_CONF_UGLY_DEFS }, | |
| 1199 { false, "USE_64_BIT_IDX_T", OCTAVE_CONF_USE_64_BIT_IDX_T }, | |
| 1200 { false, "XTRA_CFLAGS", OCTAVE_CONF_XTRA_CFLAGS }, | |
| 1201 { false, "XTRA_CXXFLAGS", OCTAVE_CONF_XTRA_CXXFLAGS }, | |
| 1202 { false, "YACC", OCTAVE_CONF_YACC }, | |
| 1203 { false, "YFLAGS", OCTAVE_CONF_YFLAGS }, | |
| 1204 { false, "api_version", OCTAVE_API_VERSION }, | |
| 1205 { true, "archlibdir", OCTAVE_ARCHLIBDIR }, | |
| 1206 { true, "bindir", OCTAVE_BINDIR }, | |
| 1207 { false, "canonical_host_type", OCTAVE_CANONICAL_HOST_TYPE }, | |
| 1208 { false, "config_opts", OCTAVE_CONF_config_opts }, | |
| 1209 { true, "datadir", OCTAVE_DATADIR }, | |
| 1210 { true, "datarootdir", OCTAVE_DATAROOTDIR }, | |
| 6276 | 1211 { true, "exec_prefix", OCTAVE_EXEC_PREFIX }, |
| 6274 | 1212 { true, "fcnfiledir", OCTAVE_FCNFILEDIR }, |
| 1213 { true, "imagedir", OCTAVE_IMAGEDIR }, | |
| 1214 { true, "includedir", OCTAVE_INCLUDEDIR }, | |
| 1215 { true, "infodir", OCTAVE_INFODIR }, | |
| 6276 | 1216 { true, "infofile", OCTAVE_INFOFILE }, |
| 6274 | 1217 { true, "libdir", OCTAVE_LIBDIR }, |
| 1218 { true, "libexecdir", OCTAVE_LIBEXECDIR }, | |
| 6311 | 1219 { true, "localapiarchlibdir", OCTAVE_LOCALAPIARCHLIBDIR }, |
| 6274 | 1220 { true, "localapifcnfiledir", OCTAVE_LOCALAPIFCNFILEDIR }, |
| 1221 { true, "localapioctfiledir", OCTAVE_LOCALAPIOCTFILEDIR }, | |
| 1222 { true, "localarchlibdir", OCTAVE_LOCALARCHLIBDIR }, | |
| 1223 { true, "localfcnfiledir", OCTAVE_LOCALFCNFILEDIR }, | |
| 1224 { true, "localoctfiledir", OCTAVE_LOCALOCTFILEDIR }, | |
| 1225 { true, "localstartupfiledir", OCTAVE_LOCALSTARTUPFILEDIR }, | |
| 1226 { true, "localverarchlibdir", OCTAVE_LOCALVERARCHLIBDIR }, | |
| 1227 { true, "localverfcnfiledir", OCTAVE_LOCALVERFCNFILEDIR }, | |
| 1228 { true, "localveroctfiledir", OCTAVE_LOCALVEROCTFILEDIR }, | |
| 1229 { true, "man1dir", OCTAVE_MAN1DIR }, | |
| 1230 { false, "man1ext", OCTAVE_MAN1EXT }, | |
| 1231 { true, "mandir", OCTAVE_MANDIR }, | |
| 1232 { true, "octfiledir", OCTAVE_OCTFILEDIR }, | |
| 1233 { true, "octincludedir", OCTAVE_OCTINCLUDEDIR }, | |
| 1234 { true, "octlibdir", OCTAVE_OCTLIBDIR }, | |
| 6276 | 1235 { true, "prefix", OCTAVE_PREFIX }, |
| 6274 | 1236 { true, "startupfiledir", OCTAVE_STARTUPFILEDIR }, |
| 1237 { false, "version", OCTAVE_VERSION }, | |
| 1238 { false, 0, 0 } | |
| 4357 | 1239 }; |
| 1240 | |
| 1241 if (! initialized) | |
| 1242 { | |
| 4675 | 1243 m.assign ("dld", octave_value (octave_supports_dynamic_linking)); |
| 4357 | 1244 |
| 4697 | 1245 oct_mach_info::float_format ff = oct_mach_info::native_float_format (); |
| 1246 m.assign ("float_format", | |
| 1247 octave_value (oct_mach_info::float_format_as_string (ff))); | |
| 1248 | |
| 1249 m.assign ("words_big_endian", | |
| 1250 octave_value (oct_mach_info::words_big_endian ())); | |
| 1251 | |
| 1252 m.assign ("words_little_endian", | |
| 1253 octave_value (oct_mach_info::words_little_endian ())); | |
| 1254 | |
| 4357 | 1255 int i = 0; |
| 4440 | 1256 |
| 1257 while (true) | |
| 4357 | 1258 { |
| 6274 | 1259 const conf_info_struct& elt = conf_info[i++]; |
| 1260 | |
| 1261 const char *key = elt.key; | |
| 4357 | 1262 |
| 1263 if (key) | |
| 6274 | 1264 { |
| 1265 if (elt.subst_home) | |
| 1266 m.assign (key, octave_value (subst_octave_home (elt.val))); | |
| 1267 else | |
| 1268 m.assign (key, octave_value (elt.val)); | |
| 1269 } | |
| 4357 | 1270 else |
| 1271 break; | |
| 1272 } | |
| 1273 | |
| 4691 | 1274 bool unix_system = true; |
| 7013 | 1275 bool mac_system = false; |
| 4691 | 1276 bool windows_system = false; |
| 1277 | |
| 1278 #if defined (WIN32) | |
| 1279 windows_system = true; | |
| 1280 #if !defined (__CYGWIN__) | |
| 1281 unix_system = false; | |
| 1282 #endif | |
| 1283 #endif | |
| 1284 | |
| 7010 | 1285 #if defined (__APPLE__) && defined (__MACH__) |
| 1286 mac_system = true; | |
| 1287 #endif | |
| 1288 | |
| 4691 | 1289 m.assign ("unix", octave_value (unix_system)); |
| 7010 | 1290 m.assign ("mac", octave_value (mac_system)); |
| 4691 | 1291 m.assign ("windows", octave_value (windows_system)); |
| 1292 | |
| 4357 | 1293 initialized = true; |
| 1294 } | |
| 2162 | 1295 |
| 2689 | 1296 int nargin = args.length (); |
| 1297 | |
| 1298 if (nargin == 1) | |
| 1299 { | |
| 3523 | 1300 std::string arg = args(0).string_value (); |
| 2689 | 1301 |
| 1302 if (! error_state) | |
| 4675 | 1303 { |
| 1304 Cell c = m.contents (arg.c_str ()); | |
| 5199 | 1305 |
| 1306 if (c.is_empty ()) | |
| 1307 error ("octave_config_info: no info for `%s'", arg.c_str ()); | |
| 1308 else | |
| 1309 retval = c(0); | |
| 4675 | 1310 } |
| 2689 | 1311 } |
| 1312 else if (nargin == 0) | |
| 4233 | 1313 retval = m; |
| 2689 | 1314 else |
| 5823 | 1315 print_usage (); |
| 2689 | 1316 |
| 1317 return retval; | |
| 2162 | 1318 } |
| 1319 | |
| 1683 | 1320 #if defined (__GNUG__) && defined (DEBUG_NEW_DELETE) |
| 2806 | 1321 |
| 1683 | 1322 int debug_new_delete = 0; |
| 1323 | |
| 1324 typedef void (*vfp)(void); | |
| 1325 extern vfp __new_handler; | |
| 1326 | |
| 1327 void * | |
| 1328 __builtin_new (size_t sz) | |
| 1329 { | |
| 1330 void *p; | |
| 1331 | |
| 1332 /* malloc (0) is unpredictable; avoid it. */ | |
| 1333 if (sz == 0) | |
| 1334 sz = 1; | |
| 2800 | 1335 p = malloc (sz); |
| 1683 | 1336 while (p == 0) |
| 1337 { | |
| 1338 (*__new_handler) (); | |
| 2800 | 1339 p = malloc (sz); |
| 1683 | 1340 } |
| 1341 | |
| 1342 if (debug_new_delete) | |
| 5629 | 1343 std::cerr << "__builtin_new: " << p << std::endl; |
| 1683 | 1344 |
| 1345 return p; | |
| 1346 } | |
| 1347 | |
| 1348 void | |
| 1349 __builtin_delete (void *ptr) | |
| 1350 { | |
| 1351 if (debug_new_delete) | |
| 5629 | 1352 std::cerr << "__builtin_delete: " << ptr << std::endl; |
| 1683 | 1353 |
| 1354 if (ptr) | |
| 1355 free (ptr); | |
| 1356 } | |
| 2806 | 1357 |
| 1683 | 1358 #endif |
| 1359 | |
| 1360 /* | |
| 1361 ;;; Local Variables: *** | |
| 1362 ;;; mode: C++ *** | |
| 1363 ;;; End: *** | |
| 1364 */ |