Mercurial > hg > octave-avbm
annotate src/toplev.cc @ 9396:17af7cce7d1b
yet more unwind_protect improvements
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Thu, 25 Jun 2009 13:57:38 +0200 |
| parents | 1de00ca9c9f2 |
| children | deb668d53e60 |
| 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 | |
| 1683 | 648 // Fix up things before exiting. |
| 649 | |
| 650 void | |
| 3162 | 651 clean_up_and_exit (int retval) |
| 652 { | |
| 3216 | 653 do_octave_atexit (); |
| 1683 | 654 |
| 5451 | 655 sysdep_cleanup (); |
| 656 | |
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657 if (octave_exit) |
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658 (*octave_exit) (retval == EOF ? 0 : retval); |
| 1683 | 659 } |
| 660 | |
| 3180 | 661 DEFUN (quit, args, nargout, |
| 3332 | 662 "-*- texinfo -*-\n\ |
| 663 @deftypefn {Built-in Function} {} exit (@var{status})\n\ | |
| 664 @deftypefnx {Built-in Function} {} quit (@var{status})\n\ | |
| 665 Exit the current Octave session. If the optional integer value\n\ | |
| 666 @var{status} is supplied, pass that value to the operating system as the\n\ | |
| 6615 | 667 Octave's exit status. The default value is zero.\n\ |
| 3333 | 668 @end deftypefn") |
| 1683 | 669 { |
| 2086 | 670 octave_value_list retval; |
| 2068 | 671 |
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672 if (! quit_allowed) |
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673 error ("quit: not supported in embedded mode."); |
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674 else if (nargout == 0) |
| 2068 | 675 { |
| 3180 | 676 if (args.length () > 0) |
| 677 { | |
| 3202 | 678 int tmp = args(0).nint_value (); |
| 1683 | 679 |
| 3202 | 680 if (! error_state) |
| 681 exit_status = tmp; | |
| 3180 | 682 } |
| 683 | |
| 9383 | 684 if (! error_state) |
| 685 { | |
| 686 quitting_gracefully = true; | |
| 687 | |
| 688 // Simulate interrupt. | |
| 689 | |
| 690 octave_interrupt_state = -1; | |
| 691 | |
| 692 octave_throw_interrupt_exception (); | |
| 693 } | |
| 2068 | 694 } |
| 3180 | 695 else |
| 696 error ("quit: invalid number of output arguments"); | |
| 2068 | 697 |
| 1683 | 698 return retval; |
| 699 } | |
| 700 | |
| 701 DEFALIAS (exit, quit); | |
| 702 | |
| 1957 | 703 DEFUN (warranty, , , |
| 3446 | 704 "-*- texinfo -*-\n\ |
| 705 @deftypefn {Built-in Function} {} warranty ()\n\ | |
| 706 Describe the conditions for copying and distributing Octave.\n\ | |
| 707 @end deftypefn") | |
| 1683 | 708 { |
| 2086 | 709 octave_value_list retval; |
| 1683 | 710 |
| 3922 | 711 octave_stdout << "\n" \ |
| 712 OCTAVE_NAME_VERSION_AND_COPYRIGHT "\n\ | |
| 713 \n\ | |
| 1683 | 714 This program is free software; you can redistribute it and/or modify\n\ |
| 715 it under the terms of the GNU General Public License as published by\n\ | |
| 7016 | 716 the Free Software Foundation; either version 3 of the License, or\n\ |
| 1683 | 717 (at your option) any later version.\n\ |
| 718 \n\ | |
| 719 This program is distributed in the hope that it will be useful,\n\ | |
| 720 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\ | |
| 721 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\ | |
| 722 GNU General Public License for more details.\n\ | |
| 723 \n\ | |
| 724 You should have received a copy of the GNU General Public License\n\ | |
| 7016 | 725 along with this program. If not, see <http://www.gnu.org/licenses/>.\n\ |
| 1683 | 726 \n"; |
| 727 | |
| 728 return retval; | |
| 729 } | |
| 730 | |
| 731 // Execute a shell command. | |
| 732 | |
| 1965 | 733 static void |
| 734 cleanup_iprocstream (void *p) | |
| 735 { | |
| 3060 | 736 iprocstream *cmd = static_cast<iprocstream *> (p); |
| 737 | |
| 738 octave_child_list::remove (cmd->pid ()); | |
| 739 | |
| 740 delete cmd; | |
| 1965 | 741 } |
| 742 | |
| 6316 | 743 static int |
| 744 wait_for_input (int fid) | |
| 745 { | |
| 746 int retval = -1; | |
| 747 | |
| 748 #if defined (HAVE_SELECT) | |
| 749 if (fid >= 0) | |
| 750 { | |
| 751 fd_set set; | |
| 752 | |
| 753 FD_ZERO (&set); | |
| 754 FD_SET (fid, &set); | |
| 755 | |
| 756 retval = select (FD_SETSIZE, &set, 0, 0, 0); | |
| 757 } | |
| 758 #else | |
| 759 retval = 1; | |
| 760 #endif | |
| 761 | |
| 762 return retval; | |
| 763 } | |
| 764 | |
| 2086 | 765 static octave_value_list |
| 3523 | 766 run_command_and_return_output (const std::string& cmd_str) |
| 2083 | 767 { |
| 2086 | 768 octave_value_list retval; |
| 2083 | 769 |
| 770 iprocstream *cmd = new iprocstream (cmd_str.c_str ()); | |
| 771 | |
| 3060 | 772 if (cmd) |
| 2083 | 773 { |
| 3060 | 774 unwind_protect::add (cleanup_iprocstream, cmd); |
| 775 | |
| 776 if (*cmd) | |
| 777 { | |
| 6316 | 778 int fid = cmd->file_number (); |
| 2095 | 779 |
| 6316 | 780 std::ostringstream output_buf; |
| 4494 | 781 |
| 3060 | 782 char ch; |
| 3147 | 783 |
| 4489 | 784 for (;;) |
| 3147 | 785 { |
| 4489 | 786 if (cmd->get (ch)) |
| 787 output_buf.put (ch); | |
| 788 else | |
| 789 { | |
| 790 if (! cmd->eof () && errno == EAGAIN) | |
| 791 { | |
| 792 cmd->clear (); | |
| 3147 | 793 |
| 6316 | 794 if (wait_for_input (fid) != 1) |
| 795 break; | |
| 4489 | 796 } |
| 797 else | |
| 798 break; | |
| 799 } | |
| 3147 | 800 } |
| 801 | |
| 3252 | 802 int cmd_status = cmd->close (); |
| 2083 | 803 |
| 3060 | 804 if (WIFEXITED (cmd_status)) |
| 805 cmd_status = WEXITSTATUS (cmd_status); | |
| 806 else | |
| 807 cmd_status = 127; | |
| 2083 | 808 |
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809 retval(0) = cmd_status; |
| 5765 | 810 retval(1) = output_buf.str (); |
| 3060 | 811 } |
| 812 | |
| 813 unwind_protect::run (); | |
| 2083 | 814 } |
| 815 else | |
| 816 error ("unable to start subprocess for `%s'", cmd_str.c_str ()); | |
| 817 | |
| 818 return retval; | |
| 819 } | |
| 820 | |
| 5285 | 821 enum system_exec_type { et_sync, et_async }; |
| 822 | |
| 1957 | 823 DEFUN (system, args, nargout, |
| 3301 | 824 "-*- texinfo -*-\n\ |
| 825 @deftypefn {Built-in Function} {} system (@var{string}, @var{return_output}, @var{type})\n\ | |
| 826 Execute a shell command specified by @var{string}. The second\n\ | |
| 827 argument is optional. If @var{type} is @code{\"async\"}, the process\n\ | |
| 828 is started in the background and the process id of the child process\n\ | |
| 829 is returned immediately. Otherwise, the process is started, and\n\ | |
|
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parents:
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830 Octave waits until it exits. If the @var{type} argument is omitted, a\n\ |
| 3301 | 831 value of @code{\"sync\"} is assumed.\n\ |
| 2083 | 832 \n\ |
| 3301 | 833 If two input arguments are given (the actual value of\n\ |
| 834 @var{return_output} is irrelevant) and the subprocess is started\n\ | |
| 835 synchronously, or if @var{system} is called with one input argument and\n\ | |
| 836 one or more output arguments, the output from the command is returned.\n\ | |
| 5097 | 837 Otherwise, if the subprocess is executed synchronously, its output is\n\ |
| 2321 | 838 sent to the standard output. To send the output of a command executed\n\ |
| 3301 | 839 with @var{system} through the pager, use a command like\n\ |
| 2321 | 840 \n\ |
| 3301 | 841 @example\n\ |
| 842 disp (system (cmd, 1));\n\ | |
| 843 @end example\n\ | |
| 2321 | 844 \n\ |
| 3301 | 845 @noindent\n\ |
| 2321 | 846 or\n\ |
| 847 \n\ | |
| 3301 | 848 @example\n\ |
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849 printf (\"%s\\n\", system (cmd, 1));\n\ |
| 3301 | 850 @end example\n\ |
| 851 \n\ | |
| 5659 | 852 The @code{system} function can return two values. The first is the\n\ |
| 853 exit status of the command and the second is any output from the\n\ | |
| 854 command that was written to the standard output stream. For example,\n\ | |
| 3301 | 855 \n\ |
| 856 @example\n\ | |
| 5717 | 857 [status, output] = system (\"echo foo; exit 2\");\n\ |
| 3301 | 858 @end example\n\ |
| 859 \n\ | |
| 860 @noindent\n\ | |
| 861 will set the variable @code{output} to the string @samp{foo}, and the\n\ | |
| 862 variable @code{status} to the integer @samp{2}.\n\ | |
| 863 @end deftypefn") | |
| 1683 | 864 { |
| 2086 | 865 octave_value_list retval; |
| 1683 | 866 |
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867 unwind_protect::frame_id_t uwp_frame = unwind_protect::begin_frame (); |
| 3834 | 868 |
| 1683 | 869 int nargin = args.length (); |
| 870 | |
| 2083 | 871 if (nargin > 0 && nargin < 4) |
| 1683 | 872 { |
| 5672 | 873 bool return_output = (nargout > 1 || nargin > 1); |
| 2083 | 874 |
| 3523 | 875 std::string cmd_str = args(0).string_value (); |
| 2083 | 876 |
| 5285 | 877 system_exec_type type = et_sync; |
| 2083 | 878 |
| 879 if (! error_state) | |
| 880 { | |
| 881 if (nargin > 2) | |
| 882 { | |
| 3523 | 883 std::string type_str = args(2).string_value (); |
| 1683 | 884 |
| 2083 | 885 if (! error_state) |
| 886 { | |
| 887 if (type_str == "sync") | |
| 5285 | 888 type = et_sync; |
| 2083 | 889 else if (type_str == "async") |
| 5285 | 890 type = et_async; |
| 2083 | 891 else |
| 892 error ("system: third arg must be \"sync\" or \"async\""); | |
| 893 } | |
| 894 else | |
| 895 error ("system: third argument must be a string"); | |
| 896 } | |
| 897 } | |
| 898 else | |
| 3523 | 899 error ("system: expecting std::string as first argument"); |
| 1683 | 900 |
| 2083 | 901 if (! error_state) |
| 902 { | |
| 7104 | 903 #if defined (__WIN32__) && ! defined (__CYGWIN__) |
| 904 // Work around weird double-quote handling on Windows systems. | |
| 905 if (type == et_sync) | |
| 906 cmd_str = "\"" + cmd_str + "\""; | |
| 907 #endif | |
| 908 | |
| 5285 | 909 if (type == et_async) |
| 2083 | 910 { |
| 6222 | 911 // FIXME -- maybe this should go in sysdep.cc? |
| 4086 | 912 #ifdef HAVE_FORK |
| 2083 | 913 pid_t pid = fork (); |
| 914 | |
| 915 if (pid < 0) | |
| 916 error ("system: fork failed -- can't create child process"); | |
| 917 else if (pid == 0) | |
| 918 { | |
| 5775 | 919 // FIXME -- should probably replace this |
| 3273 | 920 // call with something portable. |
| 921 | |
| 5510 | 922 execl ("/bin/sh", "sh", "-c", cmd_str.c_str (), |
| 923 static_cast<void *> (0)); | |
| 3273 | 924 |
| 925 panic_impossible (); | |
| 2083 | 926 } |
| 927 else | |
| 4254 | 928 retval(0) = pid; |
| 6222 | 929 #elif defined (__WIN32__) |
| 930 STARTUPINFO si; | |
| 931 PROCESS_INFORMATION pi; | |
| 932 ZeroMemory (&si, sizeof (si)); | |
| 933 ZeroMemory (&pi, sizeof (pi)); | |
| 934 OCTAVE_LOCAL_BUFFER (char, xcmd_str, cmd_str.length()+1); | |
| 6676 | 935 strcpy (xcmd_str, cmd_str.c_str ()); |
| 6222 | 936 |
| 937 if (! CreateProcess (0, xcmd_str, 0, 0, FALSE, 0, 0, 0, &si, &pi)) | |
| 938 error ("system: CreateProcess failed -- can't create child process"); | |
| 939 else | |
| 940 { | |
| 941 retval(0) = pi.dwProcessId; | |
| 942 CloseHandle (pi.hProcess); | |
| 943 CloseHandle (pi.hThread); | |
| 944 } | |
| 4086 | 945 #else |
| 946 error ("asynchronous system calls are not supported"); | |
| 947 #endif | |
| 2083 | 948 } |
| 2321 | 949 else if (return_output) |
| 950 retval = run_command_and_return_output (cmd_str); | |
| 2083 | 951 else |
| 2321 | 952 { |
| 953 int status = system (cmd_str.c_str ()); | |
| 954 | |
| 955 // The value in status is as returned by waitpid. If | |
| 956 // the process exited normally, extract the actual exit | |
| 957 // status of the command. Otherwise, return 127 as a | |
| 958 // failure code. | |
| 959 | |
| 2693 | 960 if (WIFEXITED (status)) |
| 961 status = WEXITSTATUS (status); | |
| 2321 | 962 |
| 4233 | 963 retval(0) = status; |
| 2321 | 964 } |
| 2083 | 965 } |
| 1683 | 966 } |
| 967 else | |
| 5823 | 968 print_usage (); |
| 1683 | 969 |
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970 unwind_protect::run_frame (uwp_frame); |
| 3834 | 971 |
| 1683 | 972 return retval; |
| 973 } | |
| 974 | |
| 975 DEFALIAS (shell_cmd, system); | |
| 976 | |
| 5775 | 977 // FIXME -- this should really be static, but that causes |
| 2614 | 978 // problems on some systems. |
| 6680 | 979 std::list<std::string> octave_atexit_functions; |
| 2077 | 980 |
| 981 void | |
| 982 do_octave_atexit (void) | |
| 983 { | |
| 3216 | 984 static bool deja_vu = false; |
| 985 | |
| 2077 | 986 while (! octave_atexit_functions.empty ()) |
| 987 { | |
| 6680 | 988 std::string fcn = octave_atexit_functions.front (); |
| 4214 | 989 |
| 6680 | 990 octave_atexit_functions.pop_front (); |
| 2077 | 991 |
| 5237 | 992 reset_error_handler (); |
| 993 | |
| 9383 | 994 try |
| 995 { | |
| 996 feval (fcn, octave_value_list (), 0); | |
| 997 } | |
| 998 catch (octave_interrupt_exception) | |
| 999 { | |
| 1000 recover_from_exception (); | |
| 1001 } | |
| 1002 catch (octave_execution_exception) | |
| 1003 { | |
| 1004 recover_from_exception (); | |
| 1005 } | |
| 1006 catch (std::bad_alloc) | |
| 1007 { | |
| 1008 recover_from_exception (); | |
| 1009 } | |
| 3215 | 1010 |
| 1011 flush_octave_stdout (); | |
| 2077 | 1012 } |
| 3216 | 1013 |
| 1014 if (! deja_vu) | |
| 1015 { | |
| 1016 deja_vu = true; | |
| 1017 | |
| 6068 | 1018 // Do this explicitly so that destructors for mex file objects |
| 1019 // are called, so that functions registered with mexAtExit are | |
| 1020 // called. | |
| 6072 | 1021 clear_mex_functions (); |
| 6068 | 1022 |
| 3216 | 1023 command_editor::restore_terminal_state (); |
| 1024 | |
| 5775 | 1025 // FIXME -- is this needed? Can it cause any trouble? |
| 3216 | 1026 raw_mode (0); |
| 1027 | |
| 5305 | 1028 octave_history_write_timestamp (); |
| 1029 | |
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1030 if (Vsaving_history) |
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1031 command_history::clean_up_and_save (); |
| 3216 | 1032 |
| 1033 close_files (); | |
| 1034 | |
| 1035 cleanup_tmp_files (); | |
| 1036 | |
| 1037 flush_octave_stdout (); | |
| 1038 | |
| 5305 | 1039 if (! quitting_gracefully && (interactive || forced_interactive)) |
| 5629 | 1040 { |
| 1041 octave_stdout << "\n"; | |
| 1042 | |
| 1043 // Yes, we want this to be separate from the call to | |
| 1044 // flush_octave_stdout above. | |
| 1045 | |
| 1046 flush_octave_stdout (); | |
| 1047 } | |
| 3216 | 1048 } |
| 2077 | 1049 } |
| 1050 | |
| 7409 | 1051 void |
| 1052 octave_add_atexit_function (const std::string& fname) | |
| 1053 { | |
| 1054 octave_atexit_functions.push_front (fname); | |
| 1055 } | |
| 1056 | |
| 1057 bool | |
| 1058 octave_remove_atexit_function (const std::string& fname) | |
| 1059 { | |
| 1060 bool found = false; | |
| 1061 | |
| 1062 for (std::list<std::string>::iterator p = octave_atexit_functions.begin (); | |
| 1063 p != octave_atexit_functions.end (); p++) | |
| 1064 { | |
| 1065 if (*p == fname) | |
| 1066 { | |
| 1067 octave_atexit_functions.erase (p); | |
| 1068 found = true; | |
| 1069 break; | |
| 1070 } | |
| 1071 } | |
| 1072 | |
| 1073 return found; | |
| 1074 } | |
| 1075 | |
| 1076 | |
| 6680 | 1077 DEFUN (atexit, args, nargout, |
| 3332 | 1078 "-*- texinfo -*-\n\ |
| 1079 @deftypefn {Built-in Function} {} atexit (@var{fcn})\n\ | |
|
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1080 @deftypefnx {Built-in Function} {} atexit (@var{fcn}, @var{flag})\n\ |
| 3332 | 1081 Register a function to be called when Octave exits. For example,\n\ |
| 2077 | 1082 \n\ |
| 3332 | 1083 @example\n\ |
| 1084 @group\n\ | |
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1085 function last_words ()\n\ |
| 6620 | 1086 disp (\"Bye bye\");\n\ |
| 3332 | 1087 endfunction\n\ |
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1088 atexit (\"last_words\");\n\ |
| 3332 | 1089 @end group\n\ |
| 1090 @end example\n\ | |
| 1091 \n\ | |
| 1092 @noindent\n\ | |
| 6620 | 1093 will print the message \"Bye bye\" when Octave exits.\n\ |
| 6680 | 1094 \n\ |
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1095 The additional argument @var{flag} will register or unregister\n\ |
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1096 @var{fcn} from the list of functions to be called when Octave\n\ |
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1097 exits. If @var{flag} is true, the function is registered, and if\n\ |
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1098 @var{flag} is false, it is unregistered. For example,\n\ |
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1099 after registering the function @code{last_words} above,\n\ |
| 6680 | 1100 \n\ |
| 1101 @example\n\ | |
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1102 atexit (\"last_words\", false);\n\ |
| 6680 | 1103 @end example\n\ |
| 1104 \n\ | |
| 1105 @noindent\n\ | |
| 1106 will remove the function from the list and Octave will not call\n\ | |
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1107 @code{last_words} when it exits.\n\ |
| 6680 | 1108 \n\ |
| 7001 | 1109 Note that @code{atexit} only removes the first occurrence of a function\n\ |
| 6680 | 1110 from the list, so if a function was placed in the list multiple\n\ |
| 1111 times with @code{atexit}, it must also be removed from the list\n\ | |
| 1112 multiple times.\n\ | |
| 3333 | 1113 @end deftypefn") |
| 2077 | 1114 { |
| 2086 | 1115 octave_value_list retval; |
| 2077 | 1116 |
| 1117 int nargin = args.length (); | |
| 1118 | |
| 6680 | 1119 if (nargin == 1 || nargin == 2) |
| 2077 | 1120 { |
| 3523 | 1121 std::string arg = args(0).string_value (); |
| 2077 | 1122 |
| 1123 if (! error_state) | |
| 6680 | 1124 { |
| 1125 bool add_mode = true; | |
| 1126 | |
| 1127 if (nargin == 2) | |
| 1128 { | |
| 1129 add_mode = args(1).bool_value (); | |
| 1130 | |
| 1131 if (error_state) | |
| 1132 error ("atexit: second argument must be a logical value"); | |
| 1133 } | |
| 1134 | |
| 1135 if (! error_state) | |
| 1136 { | |
| 1137 if (add_mode) | |
| 7409 | 1138 octave_add_atexit_function (arg); |
| 6680 | 1139 else |
| 1140 { | |
| 7409 | 1141 bool found = octave_remove_atexit_function (arg); |
| 6680 | 1142 |
| 1143 if (nargout > 0) | |
| 1144 retval(0) = found; | |
| 1145 } | |
| 1146 } | |
| 1147 } | |
| 2077 | 1148 else |
| 6680 | 1149 error ("atexit: argument must be a string"); |
| 2077 | 1150 } |
| 1151 else | |
| 5823 | 1152 print_usage (); |
| 2077 | 1153 |
| 1154 return retval; | |
| 1155 } | |
| 1156 | |
| 2689 | 1157 DEFUN (octave_config_info, args, , |
| 3301 | 1158 "-*- texinfo -*-\n\ |
| 1159 @deftypefn {Built-in Function} {} octave_config_info (@var{option})\n\ | |
| 1160 Return a structure containing configuration and installation\n\ | |
| 1161 information for Octave.\n\ | |
| 2689 | 1162 \n\ |
| 3301 | 1163 if @var{option} is a string, return the configuration information for the\n\ |
| 2689 | 1164 specified option.\n\ |
| 1165 \n\ | |
| 3301 | 1166 @end deftypefn") |
| 2162 | 1167 { |
| 2689 | 1168 octave_value retval; |
| 1169 | |
| 4128 | 1170 #if defined (ENABLE_DYNAMIC_LINKING) |
| 2689 | 1171 bool octave_supports_dynamic_linking = true; |
| 1172 #else | |
| 1173 bool octave_supports_dynamic_linking = false; | |
| 1174 #endif | |
| 1175 | |
| 4357 | 1176 static bool initialized = false; |
| 1177 static Octave_map m; | |
| 2162 | 1178 |
| 6274 | 1179 struct conf_info_struct |
| 1180 { | |
| 1181 bool subst_home; | |
| 1182 const char *key; | |
| 1183 const char *val; | |
| 1184 }; | |
| 1185 | |
| 1186 static const conf_info_struct conf_info[] = | |
| 4357 | 1187 { |
| 6274 | 1188 { false, "ALL_CFLAGS", OCTAVE_CONF_ALL_CFLAGS }, |
| 1189 { false, "ALL_CXXFLAGS", OCTAVE_CONF_ALL_CXXFLAGS }, | |
| 1190 { false, "ALL_FFLAGS", OCTAVE_CONF_ALL_FFLAGS }, | |
| 1191 { false, "ALL_LDFLAGS", OCTAVE_CONF_ALL_LDFLAGS }, | |
| 1192 { false, "AR", OCTAVE_CONF_AR }, | |
| 1193 { false, "ARFLAGS", OCTAVE_CONF_ARFLAGS }, | |
| 1194 { false, "BLAS_LIBS", OCTAVE_CONF_BLAS_LIBS }, | |
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1195 { false, "CARBON_LIBS", OCTAVE_CONF_CARBON_LIBS }, |
| 6274 | 1196 { false, "CC", OCTAVE_CONF_CC }, |
| 1197 { false, "CC_VERSION", OCTAVE_CONF_CC_VERSION }, | |
| 1198 { false, "CFLAGS", OCTAVE_CONF_CFLAGS }, | |
| 1199 { false, "CPICFLAG", OCTAVE_CONF_CPICFLAG }, | |
| 1200 { false, "CPPFLAGS", OCTAVE_CONF_CPPFLAGS }, | |
| 1201 { false, "CURL_LIBS", OCTAVE_CONF_CURL_LIBS }, | |
| 1202 { false, "CXX", OCTAVE_CONF_CXX }, | |
| 1203 { false, "CXXCPP", OCTAVE_CONF_CXXCPP }, | |
| 1204 { false, "CXXFLAGS", OCTAVE_CONF_CXXFLAGS }, | |
| 1205 { false, "CXXPICFLAG", OCTAVE_CONF_CXXPICFLAG }, | |
| 1206 { false, "CXX_VERSION", OCTAVE_CONF_CXX_VERSION }, | |
| 1207 { false, "DEFAULT_PAGER", OCTAVE_DEFAULT_PAGER }, | |
| 1208 { false, "DEFS", OCTAVE_CONF_DEFS }, | |
| 1209 { false, "DL_LD", OCTAVE_CONF_DL_LD }, | |
| 1210 { false, "DL_LDFLAGS", OCTAVE_CONF_DL_LDFLAGS }, | |
| 1211 { false, "ENABLE_DYNAMIC_LINKING", OCTAVE_CONF_ENABLE_DYNAMIC_LINKING }, | |
| 1212 { false, "EXEEXT", OCTAVE_CONF_EXEEXT }, | |
| 1213 { false, "F77", OCTAVE_CONF_F77 }, | |
| 1214 { false, "F77_FLOAT_STORE_FLAG", OCTAVE_CONF_F77_FLOAT_STORE_FLAG }, | |
| 1215 { false, "FC", OCTAVE_CONF_FC }, | |
| 1216 { false, "FFLAGS", OCTAVE_CONF_FFLAGS }, | |
| 1217 { false, "FFTW_LIBS", OCTAVE_CONF_FFTW_LIBS }, | |
| 1218 { false, "FLIBS", OCTAVE_CONF_FLIBS }, | |
| 1219 { false, "FPICFLAG", OCTAVE_CONF_FPICFLAG }, | |
| 1220 { false, "GLPK_LIBS", OCTAVE_CONF_GLPK_LIBS }, | |
| 7361 | 1221 { false, "GNUPLOT", OCTAVE_CONF_GNUPLOT }, |
| 6274 | 1222 { false, "INCFLAGS", OCTAVE_CONF_INCFLAGS }, |
| 1223 { false, "LDFLAGS", OCTAVE_CONF_LDFLAGS }, | |
| 1224 { false, "LD_CXX", OCTAVE_CONF_LD_CXX }, | |
| 1225 { false, "LD_STATIC_FLAG", OCTAVE_CONF_LD_STATIC_FLAG }, | |
| 1226 { false, "LEX", OCTAVE_CONF_LEX }, | |
| 1227 { false, "LEXLIB", OCTAVE_CONF_LEXLIB }, | |
| 1228 { false, "LFLAGS", OCTAVE_CONF_LFLAGS }, | |
| 1229 { false, "LIBCRUFT", OCTAVE_CONF_LIBCRUFT }, | |
| 1230 { false, "LIBEXT", OCTAVE_CONF_LIBEXT }, | |
| 1231 { false, "LIBFLAGS", OCTAVE_CONF_LIBFLAGS }, | |
| 1232 { false, "LIBOCTAVE", OCTAVE_CONF_LIBOCTAVE }, | |
| 1233 { false, "LIBOCTINTERP", OCTAVE_CONF_LIBOCTINTERP }, | |
| 1234 { false, "LIBREADLINE", OCTAVE_CONF_LIBREADLINE }, | |
| 1235 { false, "LIBS", OCTAVE_CONF_LIBS }, | |
| 1236 { false, "LN_S", OCTAVE_CONF_LN_S }, | |
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1237 { false, "MAGICK_INCFLAGS", OCTAVE_CONF_MAGICK_INCFLAGS }, |
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1238 { false, "MAGICK_LIBS", OCTAVE_CONF_MAGICK_LIBS }, |
| 6274 | 1239 { false, "MKOCTFILE_DL_LDFLAGS", OCTAVE_CONF_MKOCTFILE_DL_LDFLAGS }, |
| 1240 { false, "RANLIB", OCTAVE_CONF_RANLIB }, | |
| 1241 { false, "RDYNAMIC_FLAG", OCTAVE_CONF_RDYNAMIC_FLAG }, | |
| 1242 { false, "RLD_FLAG", OCTAVE_CONF_RLD_FLAG }, | |
| 1243 { false, "SED", OCTAVE_CONF_SED }, | |
| 1244 { false, "SHARED_LIBS", OCTAVE_CONF_SHARED_LIBS }, | |
| 1245 { false, "SHLEXT", OCTAVE_CONF_SHLEXT }, | |
| 1246 { false, "SHLEXT_VER", OCTAVE_CONF_SHLEXT_VER }, | |
| 1247 { false, "SH_LD", OCTAVE_CONF_SH_LD }, | |
| 1248 { false, "SH_LDFLAGS", OCTAVE_CONF_SH_LDFLAGS }, | |
| 1249 { false, "SONAME_FLAGS", OCTAVE_CONF_SONAME_FLAGS }, | |
| 1250 { false, "STATIC_LIBS", OCTAVE_CONF_STATIC_LIBS }, | |
| 1251 { false, "UGLY_DEFS", OCTAVE_CONF_UGLY_DEFS }, | |
| 1252 { false, "USE_64_BIT_IDX_T", OCTAVE_CONF_USE_64_BIT_IDX_T }, | |
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1253 { false, "X11_INCFLAGS", OCTAVE_CONF_X11_INCFLAGS }, |
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1254 { false, "X11_LIBS", OCTAVE_CONF_X11_LIBS }, |
| 6274 | 1255 { false, "XTRA_CFLAGS", OCTAVE_CONF_XTRA_CFLAGS }, |
| 1256 { false, "XTRA_CXXFLAGS", OCTAVE_CONF_XTRA_CXXFLAGS }, | |
| 1257 { false, "YACC", OCTAVE_CONF_YACC }, | |
| 1258 { false, "YFLAGS", OCTAVE_CONF_YFLAGS }, | |
| 1259 { false, "api_version", OCTAVE_API_VERSION }, | |
| 1260 { true, "archlibdir", OCTAVE_ARCHLIBDIR }, | |
| 1261 { true, "bindir", OCTAVE_BINDIR }, | |
| 1262 { false, "canonical_host_type", OCTAVE_CANONICAL_HOST_TYPE }, | |
| 1263 { false, "config_opts", OCTAVE_CONF_config_opts }, | |
| 1264 { true, "datadir", OCTAVE_DATADIR }, | |
| 1265 { true, "datarootdir", OCTAVE_DATAROOTDIR }, | |
| 6276 | 1266 { true, "exec_prefix", OCTAVE_EXEC_PREFIX }, |
| 6274 | 1267 { true, "fcnfiledir", OCTAVE_FCNFILEDIR }, |
| 1268 { true, "imagedir", OCTAVE_IMAGEDIR }, | |
| 1269 { true, "includedir", OCTAVE_INCLUDEDIR }, | |
| 1270 { true, "infodir", OCTAVE_INFODIR }, | |
| 6276 | 1271 { true, "infofile", OCTAVE_INFOFILE }, |
| 6274 | 1272 { true, "libdir", OCTAVE_LIBDIR }, |
| 1273 { true, "libexecdir", OCTAVE_LIBEXECDIR }, | |
| 6311 | 1274 { true, "localapiarchlibdir", OCTAVE_LOCALAPIARCHLIBDIR }, |
| 6274 | 1275 { true, "localapifcnfiledir", OCTAVE_LOCALAPIFCNFILEDIR }, |
| 1276 { true, "localapioctfiledir", OCTAVE_LOCALAPIOCTFILEDIR }, | |
| 1277 { true, "localarchlibdir", OCTAVE_LOCALARCHLIBDIR }, | |
| 1278 { true, "localfcnfiledir", OCTAVE_LOCALFCNFILEDIR }, | |
| 1279 { true, "localoctfiledir", OCTAVE_LOCALOCTFILEDIR }, | |
| 1280 { true, "localstartupfiledir", OCTAVE_LOCALSTARTUPFILEDIR }, | |
| 1281 { true, "localverarchlibdir", OCTAVE_LOCALVERARCHLIBDIR }, | |
| 1282 { true, "localverfcnfiledir", OCTAVE_LOCALVERFCNFILEDIR }, | |
| 1283 { true, "localveroctfiledir", OCTAVE_LOCALVEROCTFILEDIR }, | |
| 1284 { true, "man1dir", OCTAVE_MAN1DIR }, | |
| 1285 { false, "man1ext", OCTAVE_MAN1EXT }, | |
| 1286 { true, "mandir", OCTAVE_MANDIR }, | |
| 1287 { true, "octfiledir", OCTAVE_OCTFILEDIR }, | |
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1288 { true, "octetcdir", OCTAVE_OCTETCDIR }, |
| 6274 | 1289 { true, "octincludedir", OCTAVE_OCTINCLUDEDIR }, |
| 1290 { true, "octlibdir", OCTAVE_OCTLIBDIR }, | |
| 6276 | 1291 { true, "prefix", OCTAVE_PREFIX }, |
| 6274 | 1292 { true, "startupfiledir", OCTAVE_STARTUPFILEDIR }, |
| 1293 { false, "version", OCTAVE_VERSION }, | |
| 1294 { false, 0, 0 } | |
| 4357 | 1295 }; |
| 1296 | |
| 1297 if (! initialized) | |
| 1298 { | |
| 4675 | 1299 m.assign ("dld", octave_value (octave_supports_dynamic_linking)); |
| 4357 | 1300 |
| 4697 | 1301 oct_mach_info::float_format ff = oct_mach_info::native_float_format (); |
| 1302 m.assign ("float_format", | |
| 1303 octave_value (oct_mach_info::float_format_as_string (ff))); | |
| 1304 | |
| 1305 m.assign ("words_big_endian", | |
| 1306 octave_value (oct_mach_info::words_big_endian ())); | |
| 1307 | |
| 1308 m.assign ("words_little_endian", | |
| 1309 octave_value (oct_mach_info::words_little_endian ())); | |
| 1310 | |
| 4357 | 1311 int i = 0; |
| 4440 | 1312 |
| 1313 while (true) | |
| 4357 | 1314 { |
| 6274 | 1315 const conf_info_struct& elt = conf_info[i++]; |
| 1316 | |
| 1317 const char *key = elt.key; | |
| 4357 | 1318 |
| 1319 if (key) | |
| 6274 | 1320 { |
| 1321 if (elt.subst_home) | |
| 1322 m.assign (key, octave_value (subst_octave_home (elt.val))); | |
| 1323 else | |
| 1324 m.assign (key, octave_value (elt.val)); | |
| 1325 } | |
| 4357 | 1326 else |
| 1327 break; | |
| 1328 } | |
| 1329 | |
| 4691 | 1330 bool unix_system = true; |
| 7013 | 1331 bool mac_system = false; |
| 4691 | 1332 bool windows_system = false; |
| 1333 | |
| 1334 #if defined (WIN32) | |
| 1335 windows_system = true; | |
| 1336 #if !defined (__CYGWIN__) | |
| 1337 unix_system = false; | |
| 1338 #endif | |
| 1339 #endif | |
| 1340 | |
|
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1341 #if defined (OCTAVE_USE_OS_X_API) |
| 7010 | 1342 mac_system = true; |
| 1343 #endif | |
| 1344 | |
| 4691 | 1345 m.assign ("unix", octave_value (unix_system)); |
| 7010 | 1346 m.assign ("mac", octave_value (mac_system)); |
| 4691 | 1347 m.assign ("windows", octave_value (windows_system)); |
| 1348 | |
| 4357 | 1349 initialized = true; |
| 1350 } | |
| 2162 | 1351 |
| 2689 | 1352 int nargin = args.length (); |
| 1353 | |
| 1354 if (nargin == 1) | |
| 1355 { | |
| 3523 | 1356 std::string arg = args(0).string_value (); |
| 2689 | 1357 |
| 1358 if (! error_state) | |
| 4675 | 1359 { |
| 1360 Cell c = m.contents (arg.c_str ()); | |
| 5199 | 1361 |
| 1362 if (c.is_empty ()) | |
| 1363 error ("octave_config_info: no info for `%s'", arg.c_str ()); | |
| 1364 else | |
| 1365 retval = c(0); | |
| 4675 | 1366 } |
| 2689 | 1367 } |
| 1368 else if (nargin == 0) | |
| 4233 | 1369 retval = m; |
| 2689 | 1370 else |
| 5823 | 1371 print_usage (); |
| 2689 | 1372 |
| 1373 return retval; | |
| 2162 | 1374 } |
| 1375 | |
| 1683 | 1376 #if defined (__GNUG__) && defined (DEBUG_NEW_DELETE) |
| 2806 | 1377 |
| 1683 | 1378 int debug_new_delete = 0; |
| 1379 | |
| 1380 typedef void (*vfp)(void); | |
| 1381 extern vfp __new_handler; | |
| 1382 | |
| 1383 void * | |
| 1384 __builtin_new (size_t sz) | |
| 1385 { | |
| 1386 void *p; | |
| 1387 | |
| 1388 /* malloc (0) is unpredictable; avoid it. */ | |
| 1389 if (sz == 0) | |
| 1390 sz = 1; | |
| 2800 | 1391 p = malloc (sz); |
| 1683 | 1392 while (p == 0) |
| 1393 { | |
| 1394 (*__new_handler) (); | |
| 2800 | 1395 p = malloc (sz); |
| 1683 | 1396 } |
| 1397 | |
| 1398 if (debug_new_delete) | |
| 5629 | 1399 std::cerr << "__builtin_new: " << p << std::endl; |
| 1683 | 1400 |
| 1401 return p; | |
| 1402 } | |
| 1403 | |
| 1404 void | |
| 1405 __builtin_delete (void *ptr) | |
| 1406 { | |
| 1407 if (debug_new_delete) | |
| 5629 | 1408 std::cerr << "__builtin_delete: " << ptr << std::endl; |
| 1683 | 1409 |
| 1410 if (ptr) | |
| 1411 free (ptr); | |
| 1412 } | |
| 2806 | 1413 |
| 1683 | 1414 #endif |
| 1415 | |
| 1416 /* | |
| 1417 ;;; Local Variables: *** | |
| 1418 ;;; mode: C++ *** | |
| 1419 ;;; End: *** | |
| 1420 */ |