Mercurial > hg > octave-lyh
annotate src/toplev.cc @ 7913:f46e73bcb85b
toplev.cc (main_loop): undo previous change; input.cc (get_debug_input): don't delete global_command here
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Wed, 09 Jul 2008 18:03:10 -0400 |
| parents | 8018e10d2b87 |
| children | c3d21b9b94b6 |
| 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 | |
| 4238 | 93 // Pointer to parent function that is currently being evaluated. |
| 4748 | 94 octave_function *curr_parent_function = 0; |
| 4238 | 95 |
| 5743 | 96 octave_call_stack *octave_call_stack::instance = 0; |
| 97 | |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
98 int |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
99 octave_call_stack::do_current_line (void) const |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
100 { |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
101 tree_statement *stmt = do_top_statement (); |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
102 |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
103 return stmt ? stmt->line () : -1; |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
104 } |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
105 |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
106 int |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
107 octave_call_stack::do_current_column (void) const |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
108 { |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
109 tree_statement *stmt = do_top_statement (); |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
110 |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
111 return stmt ? stmt->column () : -1; |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
112 } |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
113 |
| 7877 | 114 int |
| 115 octave_call_stack::do_caller_user_code_line (difference_type q) const | |
| 116 { | |
| 117 int retval = -1; | |
| 118 | |
| 7890 | 119 const_iterator p = cs.end (); |
| 120 | |
| 121 while (p != cs.begin ()) | |
| 7877 | 122 { |
| 7890 | 123 const call_stack_elt& elt = *(--p); |
| 7877 | 124 |
| 125 octave_function *f = elt.fcn; | |
| 126 | |
| 127 if (f && f->is_user_code ()) | |
| 128 { | |
| 129 tree_statement *stmt = elt.stmt; | |
| 130 | |
| 131 if (stmt) | |
| 132 { | |
| 133 retval = stmt->line (); | |
| 134 break; | |
| 135 } | |
| 136 } | |
| 137 } | |
| 138 | |
| 139 return retval; | |
| 140 } | |
| 141 | |
| 142 int | |
| 143 octave_call_stack::do_caller_user_code_column (difference_type q) const | |
| 144 { | |
| 145 int retval = -1; | |
| 146 | |
| 7890 | 147 const_iterator p = cs.end (); |
| 148 | |
| 149 while (p != cs.begin ()) | |
| 7877 | 150 { |
| 7890 | 151 const call_stack_elt& elt = *(--p); |
| 7877 | 152 |
| 153 octave_function *f = elt.fcn; | |
| 154 | |
| 155 if (f && f->is_user_code ()) | |
| 156 { | |
| 157 tree_statement *stmt = elt.stmt; | |
| 158 | |
| 159 if (stmt) | |
| 160 { | |
| 161 retval = stmt->column (); | |
| 162 break; | |
| 163 } | |
| 164 } | |
| 165 } | |
| 166 | |
| 167 return retval; | |
| 168 } | |
| 169 | |
| 7901 | 170 size_t |
| 171 octave_call_stack::do_num_user_code_frames (octave_idx_type& curr_user_frame) const | |
| 172 { | |
| 173 size_t retval = 0; | |
| 174 | |
| 175 curr_user_frame = 0; | |
| 176 | |
| 177 // Look for the caller of dbstack. | |
| 178 size_t frame = cs[curr_frame].prev; | |
| 179 | |
| 180 bool found = false; | |
| 181 | |
| 182 size_t k = cs.size (); | |
| 183 | |
| 184 for (const_reverse_iterator p = cs.rbegin (); p != cs.rend (); p++) | |
| 185 { | |
| 186 octave_function *f = (*p).fcn; | |
| 187 | |
| 188 if (--k == frame) | |
| 189 found = true; | |
| 190 | |
| 191 if (f && f->is_user_code ()) | |
| 192 { | |
| 193 if (! found) | |
| 194 curr_user_frame++; | |
| 195 | |
| 196 retval++; | |
| 197 } | |
| 198 } | |
| 199 | |
| 200 // We counted how many user frames were not the one, in reverse. | |
| 201 // Now set curr_user_frame to be the index in the other direction. | |
| 202 curr_user_frame = retval - curr_user_frame - 1; | |
| 203 | |
| 204 return retval; | |
| 205 } | |
| 206 | |
| 5744 | 207 octave_user_script * |
|
7787
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
parents:
7752
diff
changeset
|
208 octave_call_stack::do_caller_user_script (difference_type q) const |
| 5744 | 209 { |
| 210 octave_user_script *retval = 0; | |
| 211 | |
| 7890 | 212 const_iterator p = cs.end (); |
| 213 | |
| 214 while (p != cs.begin ()) | |
| 5744 | 215 { |
| 7890 | 216 const call_stack_elt& elt = *(--p); |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
217 |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
218 octave_function *f = elt.fcn; |
| 5744 | 219 |
| 220 if (f && f->is_user_script ()) | |
| 221 { | |
| 222 retval = dynamic_cast<octave_user_script *> (f); | |
| 223 break; | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 return retval; | |
| 228 } | |
| 229 | |
| 5743 | 230 octave_user_function * |
|
7787
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
parents:
7752
diff
changeset
|
231 octave_call_stack::do_caller_user_function (difference_type q) const |
| 5743 | 232 { |
| 233 octave_user_function *retval = 0; | |
| 234 | |
| 7890 | 235 const_iterator p = cs.end (); |
| 236 | |
| 237 while (p != cs.begin ()) | |
| 5743 | 238 { |
| 7890 | 239 const call_stack_elt& elt = *(--p); |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
240 |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
241 octave_function *f = elt.fcn; |
| 5743 | 242 |
| 243 if (f && f->is_user_function ()) | |
| 244 { | |
| 245 retval = dynamic_cast<octave_user_function *> (f); | |
| 246 break; | |
| 247 } | |
| 248 } | |
| 249 | |
| 250 return retval; | |
| 251 } | |
| 252 | |
|
7719
87eda1f8faaa
octave_user_code: new base class for octave_user_script and octave_user_function
John W. Eaton <jwe@octave.org>
parents:
7552
diff
changeset
|
253 octave_user_code * |
|
7787
6b521b1e3631
Add dbquit and make dbstep compatible. Use parser in debug mode to handle multi-line input
David Bateman <dbateman@free.fr>
parents:
7752
diff
changeset
|
254 octave_call_stack::do_caller_user_code (difference_type q) const |
| 5744 | 255 { |
|
7719
87eda1f8faaa
octave_user_code: new base class for octave_user_script and octave_user_function
John W. Eaton <jwe@octave.org>
parents:
7552
diff
changeset
|
256 octave_user_code *retval = 0; |
| 5744 | 257 |
| 7890 | 258 const_iterator p = cs.end (); |
| 259 | |
| 260 while (p != cs.begin ()) | |
| 5744 | 261 { |
| 7890 | 262 const call_stack_elt& elt = *(--p); |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
263 |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
264 octave_function *f = elt.fcn; |
| 5744 | 265 |
|
7719
87eda1f8faaa
octave_user_code: new base class for octave_user_script and octave_user_function
John W. Eaton <jwe@octave.org>
parents:
7552
diff
changeset
|
266 if (f && f->is_user_code ()) |
| 5744 | 267 { |
|
7719
87eda1f8faaa
octave_user_code: new base class for octave_user_script and octave_user_function
John W. Eaton <jwe@octave.org>
parents:
7552
diff
changeset
|
268 retval = dynamic_cast<octave_user_code *> (f); |
| 5744 | 269 break; |
| 270 } | |
| 271 } | |
| 272 | |
| 273 return retval; | |
| 274 } | |
| 275 | |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
276 Octave_map |
| 7901 | 277 octave_call_stack::do_backtrace (size_t nskip, |
| 278 octave_idx_type& curr_user_frame) const | |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
279 { |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
280 Octave_map retval; |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
281 |
| 7901 | 282 size_t user_code_frames = do_num_user_code_frames (curr_user_frame); |
| 283 | |
| 284 size_t nframes = nskip <= user_code_frames ? user_code_frames - nskip : 0; | |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
285 |
| 7901 | 286 // Our list is reversed. |
| 287 curr_user_frame = nframes - curr_user_frame - 1; | |
| 288 | |
| 289 Cell keys (6, 1); | |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
290 |
| 7901 | 291 keys(0) = "file"; |
| 292 keys(1) = "name"; | |
| 293 keys(2) = "line"; | |
| 294 keys(3) = "column"; | |
| 295 keys(4) = "scope"; | |
| 296 keys(5) = "context"; | |
| 7890 | 297 |
| 7901 | 298 Cell file (nframes, 1); |
| 299 Cell name (nframes, 1); | |
| 300 Cell line (nframes, 1); | |
| 301 Cell column (nframes, 1); | |
| 302 Cell scope (nframes, 1); | |
| 303 Cell context (nframes, 1); | |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
304 |
| 7901 | 305 if (nframes > 0) |
| 306 { | |
| 307 int k = 0; | |
| 308 | |
| 309 for (const_reverse_iterator p = cs.rbegin (); p != cs.rend (); p++) | |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
310 { |
| 7901 | 311 const call_stack_elt& elt = *p; |
|
7752
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
312 |
| 7736 | 313 octave_function *f = elt.fcn; |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
314 |
| 7901 | 315 if (f && f->is_user_code ()) |
| 7736 | 316 { |
| 7901 | 317 if (nskip > 0) |
| 318 nskip--; | |
| 7736 | 319 else |
| 320 { | |
| 7901 | 321 scope(k) = elt.scope; |
| 322 context(k) = elt.context; | |
| 323 | |
| 324 file(k) = f->fcn_file_name (); | |
| 325 std::string parent_fcn_name = f->parent_fcn_name (); | |
| 326 if (parent_fcn_name == std::string ()) | |
| 327 name(k) = f->name (); | |
| 328 else | |
| 329 name(k) = f->parent_fcn_name () + Vfilemarker + f->name (); | |
| 330 | |
| 331 tree_statement *stmt = elt.stmt; | |
| 332 | |
| 333 if (stmt) | |
| 334 { | |
| 335 line(k) = stmt->line (); | |
| 336 column(k) = stmt->column (); | |
| 337 } | |
| 338 else | |
| 339 { | |
| 340 line(k) = -1; | |
| 341 column(k) = -1; | |
| 342 } | |
| 343 | |
| 344 k++; | |
| 7736 | 345 } |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
346 } |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
347 } |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
348 |
| 7736 | 349 retval.assign ("file", file); |
| 350 retval.assign ("name", name); | |
| 351 retval.assign ("line", line); | |
| 352 retval.assign ("column", column); | |
|
7752
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
353 retval.assign ("scope", scope); |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
354 retval.assign ("context", context); |
|
7734
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
355 } |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
356 |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
357 return retval; |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
358 } |
|
2dee19385d32
eliminate tree_statement_stack; handle current statement info in octave_call_stack
John W. Eaton <jwe@octave.org>
parents:
7733
diff
changeset
|
359 |
|
7752
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
360 bool |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
361 octave_call_stack::do_goto_frame (size_t n, bool verbose) |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
362 { |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
363 bool retval = false; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
364 |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
365 if (n < cs.size ()) |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
366 { |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
367 retval = true; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
368 |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
369 curr_frame = n; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
370 |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
371 const call_stack_elt& elt = cs[n]; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
372 |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
373 symbol_table::set_scope_and_context (elt.scope, elt.context); |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
374 |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
375 if (verbose) |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
376 { |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
377 octave_function *f = elt.fcn; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
378 std::string nm = f ? f->name () : std::string ("<unknown>"); |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
379 |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
380 tree_statement *s = elt.stmt; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
381 int l = -1; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
382 int c = -1; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
383 if (s) |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
384 { |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
385 l = s->line (); |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
386 c = s->column (); |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
387 } |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
388 |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
389 octave_stdout << "stopped in " << nm |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
390 << " at line " << l << " column " << c |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
391 << " (" << elt.scope << "[" << elt.context << "])" |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
392 << std::endl; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
393 } |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
394 } |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
395 |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
396 return retval; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
397 } |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
398 |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
399 bool |
| 7901 | 400 octave_call_stack::do_goto_frame_relative (int nskip, bool verbose) |
|
7752
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
401 { |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
402 bool retval = false; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
403 |
| 7901 | 404 if (nskip == 0) |
|
7752
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
405 retval = true; |
| 7890 | 406 else |
| 407 { | |
| 7901 | 408 int incr = nskip < 0 ? -1 : 1; |
| 409 | |
| 410 // Start looking with the caller of dbup/dbdown. | |
| 411 size_t frame = cs[curr_frame].prev; | |
| 412 | |
| 413 while (true) | |
| 414 { | |
| 415 if ((incr < 0 && frame == 0) || (incr > 0 && frame == cs.size () - 1)) | |
| 416 break; | |
| 417 | |
| 418 frame += incr; | |
| 419 | |
| 420 const call_stack_elt& elt = cs[frame]; | |
| 421 | |
| 422 octave_function *f = elt.fcn; | |
| 423 | |
| 424 if (f && f->is_user_code ()) | |
| 425 { | |
| 426 if (nskip > 0) | |
| 427 nskip--; | |
| 428 else if (nskip < 0) | |
| 429 nskip++; | |
| 430 | |
| 431 if (nskip == 0) | |
| 432 { | |
| 433 curr_frame = frame; | |
| 434 cs[cs.size () - 1].prev = curr_frame; | |
| 7890 | 435 |
| 7901 | 436 if (verbose) |
| 437 { | |
| 438 tree_statement *s = elt.stmt; | |
| 439 int l = -1; | |
| 440 int c = -1; | |
| 441 if (s) | |
| 442 { | |
| 443 l = s->line (); | |
| 444 c = s->column (); | |
| 445 } | |
| 446 | |
| 447 std::ostringstream buf; | |
| 448 buf << f->name () << ": " << " line " << l | |
| 449 << ", column " << c << std::endl; | |
| 450 | |
| 451 octave_stdout << buf.str (); | |
| 452 } | |
| 453 | |
| 454 retval = true; | |
| 455 break; | |
| 456 } | |
| 457 } | |
| 458 } | |
| 459 | |
| 460 // There is no need to set scope and context here. That will | |
| 461 // happen when the dbup/dbdown frame is popped and we jump to | |
| 462 // the new "prev" frame set above. | |
| 7890 | 463 } |
|
7752
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
464 |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
465 return retval; |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
466 } |
|
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
parents:
7736
diff
changeset
|
467 |
| 5744 | 468 void |
| 7901 | 469 octave_call_stack::do_goto_caller_frame (void) |
| 470 { | |
| 471 size_t frame = curr_frame; | |
| 472 | |
| 473 bool skipped = false; | |
| 474 | |
| 475 while (frame != 0) | |
| 476 { | |
| 477 frame = cs[frame].prev; | |
| 478 | |
| 479 const call_stack_elt& elt = cs[frame]; | |
| 480 | |
| 481 octave_function *f = elt.fcn; | |
| 482 | |
| 483 if (f && f->is_user_code ()) | |
| 484 { | |
| 485 if (! skipped) | |
| 486 // We found the current user code frame, so skip it. | |
| 487 skipped = true; | |
| 488 else | |
| 489 { | |
| 490 // We found the caller user code frame. | |
| 491 call_stack_elt tmp (elt); | |
| 492 tmp.prev = curr_frame; | |
| 493 | |
| 494 curr_frame = cs.size (); | |
| 495 | |
| 496 cs.push_back (tmp); | |
| 497 | |
| 498 symbol_table::set_scope_and_context (tmp.scope, tmp.context); | |
| 499 | |
| 500 break; | |
| 501 } | |
| 502 } | |
| 503 } | |
| 504 } | |
| 505 | |
| 506 void | |
| 507 octave_call_stack::do_goto_base_frame (void) | |
| 508 { | |
| 509 call_stack_elt tmp (cs[0]); | |
| 510 tmp.prev = curr_frame; | |
| 511 | |
| 512 curr_frame = cs.size (); | |
| 513 | |
| 514 cs.push_back (tmp); | |
| 515 | |
| 516 symbol_table::set_scope_and_context (tmp.scope, tmp.context); | |
| 517 } | |
| 518 | |
| 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; |
|
7481
78f3811155f7
use exceptions in liboctave error handler
John W. Eaton <jwe@octave.org>
parents:
7409
diff
changeset
|
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 { |
| 7336 | 553 symbol_table::reset_scope (); |
| 2620 | 554 |
| 4318 | 555 reset_error_handler (); |
| 556 | |
| 4153 | 557 reset_parser (); |
| 2620 | 558 |
| 4753 | 559 // This is the same as yyparse in parse.y. |
| 560 retval = octave_parse (); | |
| 2620 | 561 |
| 4153 | 562 if (retval == 0) |
| 563 { | |
|
7913
f46e73bcb85b
toplev.cc (main_loop): undo previous change; input.cc (get_debug_input): don't delete global_command here
John W. Eaton <jwe@octave.org>
parents:
7903
diff
changeset
|
564 if (global_command) |
| 3804 | 565 { |
|
7913
f46e73bcb85b
toplev.cc (main_loop): undo previous change; input.cc (get_debug_input): don't delete global_command here
John W. Eaton <jwe@octave.org>
parents:
7903
diff
changeset
|
566 global_command->eval (); |
| 3883 | 567 |
|
7913
f46e73bcb85b
toplev.cc (main_loop): undo previous change; input.cc (get_debug_input): don't delete global_command here
John W. Eaton <jwe@octave.org>
parents:
7903
diff
changeset
|
568 delete global_command; |
| 3883 | 569 |
|
7913
f46e73bcb85b
toplev.cc (main_loop): undo previous change; input.cc (get_debug_input): don't delete global_command here
John W. Eaton <jwe@octave.org>
parents:
7903
diff
changeset
|
570 global_command = 0; |
| 3883 | 571 |
| 4171 | 572 OCTAVE_QUIT; |
| 573 | |
| 3883 | 574 if (! (interactive || forced_interactive)) |
| 575 { | |
| 4207 | 576 bool quit = (tree_return_command::returning |
| 577 || tree_break_command::breaking); | |
| 4153 | 578 |
| 4207 | 579 if (tree_return_command::returning) |
| 580 tree_return_command::returning = 0; | |
| 4153 | 581 |
| 4207 | 582 if (tree_break_command::breaking) |
| 583 tree_break_command::breaking--; | |
| 4153 | 584 |
| 585 if (quit) | |
| 586 break; | |
| 587 } | |
| 588 | |
| 589 if (error_state) | |
| 590 { | |
| 591 if (! (interactive || forced_interactive)) | |
| 592 { | |
| 593 // We should exit with a non-zero status. | |
| 594 retval = 1; | |
| 595 break; | |
| 596 } | |
| 597 } | |
| 598 else | |
| 599 { | |
| 600 if (octave_completion_matches_called) | |
| 601 octave_completion_matches_called = false; | |
| 602 else | |
| 603 command_editor::increment_current_command_number (); | |
| 3883 | 604 } |
| 605 } | |
| 4153 | 606 else if (parser_end_of_input) |
| 607 break; | |
| 2620 | 608 } |
| 4153 | 609 } |
| 4182 | 610 catch (octave_interrupt_exception) |
| 4153 | 611 { |
| 4180 | 612 recover_from_exception (); |
| 5629 | 613 octave_stdout << "\n"; |
| 4180 | 614 } |
| 4181 | 615 catch (std::bad_alloc) |
| 4180 | 616 { |
| 617 recover_from_exception (); | |
| 618 std::cerr | |
| 6680 | 619 << "error: memory exhausted or requested size too large for range of Octave's index type -- trying to return to prompt" |
| 620 << std::endl; | |
| 1907 | 621 } |
| 622 } | |
| 623 while (retval == 0); | |
| 624 | |
| 625 return retval; | |
| 626 } | |
| 627 | |
| 1683 | 628 // Fix up things before exiting. |
| 629 | |
| 630 void | |
| 3162 | 631 clean_up_and_exit (int retval) |
| 632 { | |
| 3216 | 633 do_octave_atexit (); |
| 1683 | 634 |
| 5451 | 635 sysdep_cleanup (); |
| 636 | |
| 3162 | 637 exit (retval == EOF ? 0 : retval); |
| 1683 | 638 } |
| 639 | |
| 3180 | 640 DEFUN (quit, args, nargout, |
| 3332 | 641 "-*- texinfo -*-\n\ |
| 642 @deftypefn {Built-in Function} {} exit (@var{status})\n\ | |
| 643 @deftypefnx {Built-in Function} {} quit (@var{status})\n\ | |
| 644 Exit the current Octave session. If the optional integer value\n\ | |
| 645 @var{status} is supplied, pass that value to the operating system as the\n\ | |
| 6615 | 646 Octave's exit status. The default value is zero.\n\ |
| 3333 | 647 @end deftypefn") |
| 1683 | 648 { |
| 2086 | 649 octave_value_list retval; |
| 2068 | 650 |
| 3180 | 651 if (nargout == 0) |
| 2068 | 652 { |
| 3180 | 653 int exit_status = 0; |
| 654 | |
| 655 quitting_gracefully = true; | |
| 1683 | 656 |
| 3180 | 657 if (args.length () > 0) |
| 658 { | |
| 3202 | 659 int tmp = args(0).nint_value (); |
| 1683 | 660 |
| 3202 | 661 if (! error_state) |
| 662 exit_status = tmp; | |
| 3180 | 663 } |
| 664 | |
| 665 clean_up_and_exit (exit_status); | |
| 2068 | 666 } |
| 3180 | 667 else |
| 668 error ("quit: invalid number of output arguments"); | |
| 2068 | 669 |
| 1683 | 670 return retval; |
| 671 } | |
| 672 | |
| 673 DEFALIAS (exit, quit); | |
| 674 | |
| 1957 | 675 DEFUN (warranty, , , |
| 3446 | 676 "-*- texinfo -*-\n\ |
| 677 @deftypefn {Built-in Function} {} warranty ()\n\ | |
| 678 Describe the conditions for copying and distributing Octave.\n\ | |
| 679 @end deftypefn") | |
| 1683 | 680 { |
| 2086 | 681 octave_value_list retval; |
| 1683 | 682 |
| 3922 | 683 octave_stdout << "\n" \ |
| 684 OCTAVE_NAME_VERSION_AND_COPYRIGHT "\n\ | |
| 685 \n\ | |
| 1683 | 686 This program is free software; you can redistribute it and/or modify\n\ |
| 687 it under the terms of the GNU General Public License as published by\n\ | |
| 7016 | 688 the Free Software Foundation; either version 3 of the License, or\n\ |
| 1683 | 689 (at your option) any later version.\n\ |
| 690 \n\ | |
| 691 This program is distributed in the hope that it will be useful,\n\ | |
| 692 but WITHOUT ANY WARRANTY; without even the implied warranty of\n\ | |
| 693 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\ | |
| 694 GNU General Public License for more details.\n\ | |
| 695 \n\ | |
| 696 You should have received a copy of the GNU General Public License\n\ | |
| 7016 | 697 along with this program. If not, see <http://www.gnu.org/licenses/>.\n\ |
| 1683 | 698 \n"; |
| 699 | |
| 700 return retval; | |
| 701 } | |
| 702 | |
| 703 // Execute a shell command. | |
| 704 | |
| 1965 | 705 static void |
| 706 cleanup_iprocstream (void *p) | |
| 707 { | |
| 3060 | 708 iprocstream *cmd = static_cast<iprocstream *> (p); |
| 709 | |
| 710 octave_child_list::remove (cmd->pid ()); | |
| 711 | |
| 712 delete cmd; | |
| 1965 | 713 } |
| 714 | |
| 6316 | 715 static int |
| 716 wait_for_input (int fid) | |
| 717 { | |
| 718 int retval = -1; | |
| 719 | |
| 720 #if defined (HAVE_SELECT) | |
| 721 if (fid >= 0) | |
| 722 { | |
| 723 fd_set set; | |
| 724 | |
| 725 FD_ZERO (&set); | |
| 726 FD_SET (fid, &set); | |
| 727 | |
| 728 retval = select (FD_SETSIZE, &set, 0, 0, 0); | |
| 729 } | |
| 730 #else | |
| 731 retval = 1; | |
| 732 #endif | |
| 733 | |
| 734 return retval; | |
| 735 } | |
| 736 | |
| 2086 | 737 static octave_value_list |
| 3523 | 738 run_command_and_return_output (const std::string& cmd_str) |
| 2083 | 739 { |
| 2086 | 740 octave_value_list retval; |
| 2083 | 741 |
| 742 iprocstream *cmd = new iprocstream (cmd_str.c_str ()); | |
| 743 | |
| 3060 | 744 if (cmd) |
| 2083 | 745 { |
| 3060 | 746 unwind_protect::add (cleanup_iprocstream, cmd); |
| 747 | |
| 748 if (*cmd) | |
| 749 { | |
| 6316 | 750 int fid = cmd->file_number (); |
| 2095 | 751 |
| 6316 | 752 std::ostringstream output_buf; |
| 4494 | 753 |
| 3060 | 754 char ch; |
| 3147 | 755 |
| 4489 | 756 for (;;) |
| 3147 | 757 { |
| 4489 | 758 if (cmd->get (ch)) |
| 759 output_buf.put (ch); | |
| 760 else | |
| 761 { | |
| 762 if (! cmd->eof () && errno == EAGAIN) | |
| 763 { | |
| 764 cmd->clear (); | |
| 3147 | 765 |
| 6316 | 766 if (wait_for_input (fid) != 1) |
| 767 break; | |
| 4489 | 768 } |
| 769 else | |
| 770 break; | |
| 771 } | |
| 3147 | 772 } |
| 773 | |
| 3252 | 774 int cmd_status = cmd->close (); |
| 2083 | 775 |
| 3060 | 776 if (WIFEXITED (cmd_status)) |
| 777 cmd_status = WEXITSTATUS (cmd_status); | |
| 778 else | |
| 779 cmd_status = 127; | |
| 2083 | 780 |
| 5659 | 781 retval(0) = (double) cmd_status; |
| 5765 | 782 retval(1) = output_buf.str (); |
| 3060 | 783 } |
| 784 | |
| 785 unwind_protect::run (); | |
| 2083 | 786 } |
| 787 else | |
| 788 error ("unable to start subprocess for `%s'", cmd_str.c_str ()); | |
| 789 | |
| 790 return retval; | |
| 791 } | |
| 792 | |
| 5285 | 793 enum system_exec_type { et_sync, et_async }; |
| 794 | |
| 1957 | 795 DEFUN (system, args, nargout, |
| 3301 | 796 "-*- texinfo -*-\n\ |
| 797 @deftypefn {Built-in Function} {} system (@var{string}, @var{return_output}, @var{type})\n\ | |
| 798 Execute a shell command specified by @var{string}. The second\n\ | |
| 799 argument is optional. If @var{type} is @code{\"async\"}, the process\n\ | |
| 800 is started in the background and the process id of the child process\n\ | |
| 801 is returned immediately. Otherwise, the process is started, and\n\ | |
| 802 Octave waits until it exits. If @var{type} argument is omitted, a\n\ | |
| 803 value of @code{\"sync\"} is assumed.\n\ | |
| 2083 | 804 \n\ |
| 3301 | 805 If two input arguments are given (the actual value of\n\ |
| 806 @var{return_output} is irrelevant) and the subprocess is started\n\ | |
| 807 synchronously, or if @var{system} is called with one input argument and\n\ | |
| 808 one or more output arguments, the output from the command is returned.\n\ | |
| 5097 | 809 Otherwise, if the subprocess is executed synchronously, its output is\n\ |
| 2321 | 810 sent to the standard output. To send the output of a command executed\n\ |
| 3301 | 811 with @var{system} through the pager, use a command like\n\ |
| 2321 | 812 \n\ |
| 3301 | 813 @example\n\ |
| 814 disp (system (cmd, 1));\n\ | |
| 815 @end example\n\ | |
| 2321 | 816 \n\ |
| 3301 | 817 @noindent\n\ |
| 2321 | 818 or\n\ |
| 819 \n\ | |
| 3301 | 820 @example\n\ |
| 821 printf (\"%s\n\", system (cmd, 1));\n\ | |
| 822 @end example\n\ | |
| 823 \n\ | |
| 5659 | 824 The @code{system} function can return two values. The first is the\n\ |
| 825 exit status of the command and the second is any output from the\n\ | |
| 826 command that was written to the standard output stream. For example,\n\ | |
| 3301 | 827 \n\ |
| 828 @example\n\ | |
| 5717 | 829 [status, output] = system (\"echo foo; exit 2\");\n\ |
| 3301 | 830 @end example\n\ |
| 831 \n\ | |
| 832 @noindent\n\ | |
| 833 will set the variable @code{output} to the string @samp{foo}, and the\n\ | |
| 834 variable @code{status} to the integer @samp{2}.\n\ | |
| 835 @end deftypefn") | |
| 1683 | 836 { |
| 2086 | 837 octave_value_list retval; |
| 1683 | 838 |
| 3834 | 839 unwind_protect::begin_frame ("Fsystem"); |
| 840 | |
| 1683 | 841 int nargin = args.length (); |
| 842 | |
| 2083 | 843 if (nargin > 0 && nargin < 4) |
| 1683 | 844 { |
| 5672 | 845 bool return_output = (nargout > 1 || nargin > 1); |
| 2083 | 846 |
| 3523 | 847 std::string cmd_str = args(0).string_value (); |
| 2083 | 848 |
| 5285 | 849 system_exec_type type = et_sync; |
| 2083 | 850 |
| 851 if (! error_state) | |
| 852 { | |
| 853 if (nargin > 2) | |
| 854 { | |
| 3523 | 855 std::string type_str = args(2).string_value (); |
| 1683 | 856 |
| 2083 | 857 if (! error_state) |
| 858 { | |
| 859 if (type_str == "sync") | |
| 5285 | 860 type = et_sync; |
| 2083 | 861 else if (type_str == "async") |
| 5285 | 862 type = et_async; |
| 2083 | 863 else |
| 864 error ("system: third arg must be \"sync\" or \"async\""); | |
| 865 } | |
| 866 else | |
| 867 error ("system: third argument must be a string"); | |
| 868 } | |
| 869 } | |
| 870 else | |
| 3523 | 871 error ("system: expecting std::string as first argument"); |
| 1683 | 872 |
| 2083 | 873 if (! error_state) |
| 874 { | |
| 7104 | 875 #if defined (__WIN32__) && ! defined (__CYGWIN__) |
| 876 // Work around weird double-quote handling on Windows systems. | |
| 877 if (type == et_sync) | |
| 878 cmd_str = "\"" + cmd_str + "\""; | |
| 879 #endif | |
| 880 | |
| 5285 | 881 if (type == et_async) |
| 2083 | 882 { |
| 6222 | 883 // FIXME -- maybe this should go in sysdep.cc? |
| 4086 | 884 #ifdef HAVE_FORK |
| 2083 | 885 pid_t pid = fork (); |
| 886 | |
| 887 if (pid < 0) | |
| 888 error ("system: fork failed -- can't create child process"); | |
| 889 else if (pid == 0) | |
| 890 { | |
| 5775 | 891 // FIXME -- should probably replace this |
| 3273 | 892 // call with something portable. |
| 893 | |
| 5510 | 894 execl ("/bin/sh", "sh", "-c", cmd_str.c_str (), |
| 895 static_cast<void *> (0)); | |
| 3273 | 896 |
| 897 panic_impossible (); | |
| 2083 | 898 } |
| 899 else | |
| 4254 | 900 retval(0) = pid; |
| 6222 | 901 #elif defined (__WIN32__) |
| 902 STARTUPINFO si; | |
| 903 PROCESS_INFORMATION pi; | |
| 904 ZeroMemory (&si, sizeof (si)); | |
| 905 ZeroMemory (&pi, sizeof (pi)); | |
| 906 OCTAVE_LOCAL_BUFFER (char, xcmd_str, cmd_str.length()+1); | |
| 6676 | 907 strcpy (xcmd_str, cmd_str.c_str ()); |
| 6222 | 908 |
| 909 if (! CreateProcess (0, xcmd_str, 0, 0, FALSE, 0, 0, 0, &si, &pi)) | |
| 910 error ("system: CreateProcess failed -- can't create child process"); | |
| 911 else | |
| 912 { | |
| 913 retval(0) = pi.dwProcessId; | |
| 914 CloseHandle (pi.hProcess); | |
| 915 CloseHandle (pi.hThread); | |
| 916 } | |
| 4086 | 917 #else |
| 918 error ("asynchronous system calls are not supported"); | |
| 919 #endif | |
| 2083 | 920 } |
| 2321 | 921 else if (return_output) |
| 922 retval = run_command_and_return_output (cmd_str); | |
| 2083 | 923 else |
| 2321 | 924 { |
| 925 int status = system (cmd_str.c_str ()); | |
| 926 | |
| 927 // The value in status is as returned by waitpid. If | |
| 928 // the process exited normally, extract the actual exit | |
| 929 // status of the command. Otherwise, return 127 as a | |
| 930 // failure code. | |
| 931 | |
| 2693 | 932 if (WIFEXITED (status)) |
| 933 status = WEXITSTATUS (status); | |
| 2321 | 934 |
| 4233 | 935 retval(0) = status; |
| 2321 | 936 } |
| 2083 | 937 } |
| 1683 | 938 } |
| 939 else | |
| 5823 | 940 print_usage (); |
| 1683 | 941 |
| 3834 | 942 unwind_protect::run_frame ("Fsystem"); |
| 943 | |
| 1683 | 944 return retval; |
| 945 } | |
| 946 | |
| 947 DEFALIAS (shell_cmd, system); | |
| 948 | |
| 5775 | 949 // FIXME -- this should really be static, but that causes |
| 2614 | 950 // problems on some systems. |
| 6680 | 951 std::list<std::string> octave_atexit_functions; |
| 2077 | 952 |
| 953 void | |
| 954 do_octave_atexit (void) | |
| 955 { | |
| 3216 | 956 static bool deja_vu = false; |
| 957 | |
| 2077 | 958 while (! octave_atexit_functions.empty ()) |
| 959 { | |
| 6680 | 960 std::string fcn = octave_atexit_functions.front (); |
| 4214 | 961 |
| 6680 | 962 octave_atexit_functions.pop_front (); |
| 2077 | 963 |
| 5237 | 964 reset_error_handler (); |
| 965 | |
| 4233 | 966 feval (fcn, octave_value_list (), 0); |
| 3215 | 967 |
| 968 flush_octave_stdout (); | |
| 2077 | 969 } |
| 3216 | 970 |
| 971 if (! deja_vu) | |
| 972 { | |
| 973 deja_vu = true; | |
| 974 | |
| 6068 | 975 // Do this explicitly so that destructors for mex file objects |
| 976 // are called, so that functions registered with mexAtExit are | |
| 977 // called. | |
| 6072 | 978 clear_mex_functions (); |
| 6068 | 979 |
| 3216 | 980 command_editor::restore_terminal_state (); |
| 981 | |
| 5775 | 982 // FIXME -- is this needed? Can it cause any trouble? |
| 3216 | 983 raw_mode (0); |
| 984 | |
| 5305 | 985 octave_history_write_timestamp (); |
| 986 | |
| 3216 | 987 command_history::clean_up_and_save (); |
| 988 | |
| 989 close_files (); | |
| 990 | |
| 991 cleanup_tmp_files (); | |
| 992 | |
| 993 flush_octave_stdout (); | |
| 994 | |
| 5305 | 995 if (! quitting_gracefully && (interactive || forced_interactive)) |
| 5629 | 996 { |
| 997 octave_stdout << "\n"; | |
| 998 | |
| 999 // Yes, we want this to be separate from the call to | |
| 1000 // flush_octave_stdout above. | |
| 1001 | |
| 1002 flush_octave_stdout (); | |
| 1003 } | |
| 3216 | 1004 } |
| 2077 | 1005 } |
| 1006 | |
| 7409 | 1007 void |
| 1008 octave_add_atexit_function (const std::string& fname) | |
| 1009 { | |
| 1010 octave_atexit_functions.push_front (fname); | |
| 1011 } | |
| 1012 | |
| 1013 bool | |
| 1014 octave_remove_atexit_function (const std::string& fname) | |
| 1015 { | |
| 1016 bool found = false; | |
| 1017 | |
| 1018 for (std::list<std::string>::iterator p = octave_atexit_functions.begin (); | |
| 1019 p != octave_atexit_functions.end (); p++) | |
| 1020 { | |
| 1021 if (*p == fname) | |
| 1022 { | |
| 1023 octave_atexit_functions.erase (p); | |
| 1024 found = true; | |
| 1025 break; | |
| 1026 } | |
| 1027 } | |
| 1028 | |
| 1029 return found; | |
| 1030 } | |
| 1031 | |
| 1032 | |
| 6680 | 1033 DEFUN (atexit, args, nargout, |
| 3332 | 1034 "-*- texinfo -*-\n\ |
| 1035 @deftypefn {Built-in Function} {} atexit (@var{fcn})\n\ | |
| 1036 Register a function to be called when Octave exits. For example,\n\ | |
| 2077 | 1037 \n\ |
| 3332 | 1038 @example\n\ |
| 1039 @group\n\ | |
| 6620 | 1040 function bye_bye ()\n\ |
| 1041 disp (\"Bye bye\");\n\ | |
| 3332 | 1042 endfunction\n\ |
| 6620 | 1043 atexit (\"bye_bye\");\n\ |
| 3332 | 1044 @end group\n\ |
| 1045 @end example\n\ | |
| 1046 \n\ | |
| 1047 @noindent\n\ | |
| 6620 | 1048 will print the message \"Bye bye\" when Octave exits.\n\ |
| 6680 | 1049 \n\ |
| 1050 @deftypefnx {Built-in Function} {} atexit (@var{fcn}, @var{flag})\n\ | |
| 1051 Register or unregister a function to be called when Octave exits,\n\ | |
| 1052 depending on @var{flag}. If @var{flag} is true, the function is\n\ | |
| 1053 registered, if @var{flag} is false, it is unregistered. For example,\n\ | |
| 1054 after registering the function @code{bye_bye} as above,\n\ | |
| 1055 \n\ | |
| 1056 @example\n\ | |
| 1057 atexit (\"bye_bye\", false);\n\ | |
| 1058 @end example\n\ | |
| 1059 \n\ | |
| 1060 @noindent\n\ | |
| 1061 will remove the function from the list and Octave will not call\n\ | |
| 1062 the function @code{bye_by} when it exits.\n\ | |
| 1063 \n\ | |
| 7001 | 1064 Note that @code{atexit} only removes the first occurrence of a function\n\ |
| 6680 | 1065 from the list, so if a function was placed in the list multiple\n\ |
| 1066 times with @code{atexit}, it must also be removed from the list\n\ | |
| 1067 multiple times.\n\ | |
| 3333 | 1068 @end deftypefn") |
| 2077 | 1069 { |
| 2086 | 1070 octave_value_list retval; |
| 2077 | 1071 |
| 1072 int nargin = args.length (); | |
| 1073 | |
| 6680 | 1074 if (nargin == 1 || nargin == 2) |
| 2077 | 1075 { |
| 3523 | 1076 std::string arg = args(0).string_value (); |
| 2077 | 1077 |
| 1078 if (! error_state) | |
| 6680 | 1079 { |
| 1080 bool add_mode = true; | |
| 1081 | |
| 1082 if (nargin == 2) | |
| 1083 { | |
| 1084 add_mode = args(1).bool_value (); | |
| 1085 | |
| 1086 if (error_state) | |
| 1087 error ("atexit: second argument must be a logical value"); | |
| 1088 } | |
| 1089 | |
| 1090 if (! error_state) | |
| 1091 { | |
| 1092 if (add_mode) | |
| 7409 | 1093 octave_add_atexit_function (arg); |
| 6680 | 1094 else |
| 1095 { | |
| 7409 | 1096 bool found = octave_remove_atexit_function (arg); |
| 6680 | 1097 |
| 1098 if (nargout > 0) | |
| 1099 retval(0) = found; | |
| 1100 } | |
| 1101 } | |
| 1102 } | |
| 2077 | 1103 else |
| 6680 | 1104 error ("atexit: argument must be a string"); |
| 2077 | 1105 } |
| 1106 else | |
| 5823 | 1107 print_usage (); |
| 2077 | 1108 |
| 1109 return retval; | |
| 1110 } | |
| 1111 | |
| 2689 | 1112 DEFUN (octave_config_info, args, , |
| 3301 | 1113 "-*- texinfo -*-\n\ |
| 1114 @deftypefn {Built-in Function} {} octave_config_info (@var{option})\n\ | |
| 1115 Return a structure containing configuration and installation\n\ | |
| 1116 information for Octave.\n\ | |
| 2689 | 1117 \n\ |
| 3301 | 1118 if @var{option} is a string, return the configuration information for the\n\ |
| 2689 | 1119 specified option.\n\ |
| 1120 \n\ | |
| 3301 | 1121 @end deftypefn") |
| 2162 | 1122 { |
| 2689 | 1123 octave_value retval; |
| 1124 | |
| 4128 | 1125 #if defined (ENABLE_DYNAMIC_LINKING) |
| 2689 | 1126 bool octave_supports_dynamic_linking = true; |
| 1127 #else | |
| 1128 bool octave_supports_dynamic_linking = false; | |
| 1129 #endif | |
| 1130 | |
| 4357 | 1131 static bool initialized = false; |
| 1132 static Octave_map m; | |
| 2162 | 1133 |
| 6274 | 1134 struct conf_info_struct |
| 1135 { | |
| 1136 bool subst_home; | |
| 1137 const char *key; | |
| 1138 const char *val; | |
| 1139 }; | |
| 1140 | |
| 1141 static const conf_info_struct conf_info[] = | |
| 4357 | 1142 { |
| 6274 | 1143 { false, "ALL_CFLAGS", OCTAVE_CONF_ALL_CFLAGS }, |
| 1144 { false, "ALL_CXXFLAGS", OCTAVE_CONF_ALL_CXXFLAGS }, | |
| 1145 { false, "ALL_FFLAGS", OCTAVE_CONF_ALL_FFLAGS }, | |
| 1146 { false, "ALL_LDFLAGS", OCTAVE_CONF_ALL_LDFLAGS }, | |
| 1147 { false, "AR", OCTAVE_CONF_AR }, | |
| 1148 { false, "ARFLAGS", OCTAVE_CONF_ARFLAGS }, | |
| 1149 { false, "BLAS_LIBS", OCTAVE_CONF_BLAS_LIBS }, | |
| 1150 { false, "CC", OCTAVE_CONF_CC }, | |
| 1151 { false, "CC_VERSION", OCTAVE_CONF_CC_VERSION }, | |
| 1152 { false, "CFLAGS", OCTAVE_CONF_CFLAGS }, | |
| 1153 { false, "CPICFLAG", OCTAVE_CONF_CPICFLAG }, | |
| 1154 { false, "CPPFLAGS", OCTAVE_CONF_CPPFLAGS }, | |
| 1155 { false, "CURL_LIBS", OCTAVE_CONF_CURL_LIBS }, | |
| 1156 { false, "CXX", OCTAVE_CONF_CXX }, | |
| 1157 { false, "CXXCPP", OCTAVE_CONF_CXXCPP }, | |
| 1158 { false, "CXXFLAGS", OCTAVE_CONF_CXXFLAGS }, | |
| 1159 { false, "CXXPICFLAG", OCTAVE_CONF_CXXPICFLAG }, | |
| 1160 { false, "CXX_VERSION", OCTAVE_CONF_CXX_VERSION }, | |
| 1161 { false, "DEFAULT_PAGER", OCTAVE_DEFAULT_PAGER }, | |
| 1162 { false, "DEFS", OCTAVE_CONF_DEFS }, | |
| 1163 { false, "DL_LD", OCTAVE_CONF_DL_LD }, | |
| 1164 { false, "DL_LDFLAGS", OCTAVE_CONF_DL_LDFLAGS }, | |
| 1165 { false, "ENABLE_DYNAMIC_LINKING", OCTAVE_CONF_ENABLE_DYNAMIC_LINKING }, | |
| 1166 { false, "EXEEXT", OCTAVE_CONF_EXEEXT }, | |
| 1167 { false, "F2C", OCTAVE_CONF_F2C }, | |
| 1168 { false, "F2CFLAGS", OCTAVE_CONF_F2CFLAGS }, | |
| 1169 { false, "F77", OCTAVE_CONF_F77 }, | |
| 1170 { false, "F77_FLOAT_STORE_FLAG", OCTAVE_CONF_F77_FLOAT_STORE_FLAG }, | |
| 1171 { false, "FC", OCTAVE_CONF_FC }, | |
| 1172 { false, "FFLAGS", OCTAVE_CONF_FFLAGS }, | |
| 1173 { false, "FFTW_LIBS", OCTAVE_CONF_FFTW_LIBS }, | |
| 1174 { false, "FLIBS", OCTAVE_CONF_FLIBS }, | |
| 1175 { false, "FPICFLAG", OCTAVE_CONF_FPICFLAG }, | |
| 1176 { false, "GLPK_LIBS", OCTAVE_CONF_GLPK_LIBS }, | |
| 7361 | 1177 { false, "GNUPLOT", OCTAVE_CONF_GNUPLOT }, |
| 6274 | 1178 { false, "INCFLAGS", OCTAVE_CONF_INCFLAGS }, |
| 1179 { false, "LDFLAGS", OCTAVE_CONF_LDFLAGS }, | |
| 1180 { false, "LD_CXX", OCTAVE_CONF_LD_CXX }, | |
| 1181 { false, "LD_STATIC_FLAG", OCTAVE_CONF_LD_STATIC_FLAG }, | |
| 1182 { false, "LEX", OCTAVE_CONF_LEX }, | |
| 1183 { false, "LEXLIB", OCTAVE_CONF_LEXLIB }, | |
| 1184 { false, "LFLAGS", OCTAVE_CONF_LFLAGS }, | |
| 1185 { false, "LIBCRUFT", OCTAVE_CONF_LIBCRUFT }, | |
| 1186 { false, "LIBEXT", OCTAVE_CONF_LIBEXT }, | |
| 1187 { false, "LIBFLAGS", OCTAVE_CONF_LIBFLAGS }, | |
| 1188 { false, "LIBOCTAVE", OCTAVE_CONF_LIBOCTAVE }, | |
| 1189 { false, "LIBOCTINTERP", OCTAVE_CONF_LIBOCTINTERP }, | |
| 1190 { false, "LIBREADLINE", OCTAVE_CONF_LIBREADLINE }, | |
| 1191 { false, "LIBS", OCTAVE_CONF_LIBS }, | |
| 1192 { false, "LN_S", OCTAVE_CONF_LN_S }, | |
| 1193 { false, "MKOCTFILE_DL_LDFLAGS", OCTAVE_CONF_MKOCTFILE_DL_LDFLAGS }, | |
| 1194 { false, "RANLIB", OCTAVE_CONF_RANLIB }, | |
| 1195 { false, "RDYNAMIC_FLAG", OCTAVE_CONF_RDYNAMIC_FLAG }, | |
| 1196 { false, "RLD_FLAG", OCTAVE_CONF_RLD_FLAG }, | |
| 1197 { false, "SED", OCTAVE_CONF_SED }, | |
| 1198 { false, "SHARED_LIBS", OCTAVE_CONF_SHARED_LIBS }, | |
| 1199 { false, "SHLEXT", OCTAVE_CONF_SHLEXT }, | |
| 1200 { false, "SHLEXT_VER", OCTAVE_CONF_SHLEXT_VER }, | |
| 1201 { false, "SH_LD", OCTAVE_CONF_SH_LD }, | |
| 1202 { false, "SH_LDFLAGS", OCTAVE_CONF_SH_LDFLAGS }, | |
| 1203 { false, "SONAME_FLAGS", OCTAVE_CONF_SONAME_FLAGS }, | |
| 1204 { false, "STATIC_LIBS", OCTAVE_CONF_STATIC_LIBS }, | |
| 1205 { false, "UGLY_DEFS", OCTAVE_CONF_UGLY_DEFS }, | |
| 1206 { false, "USE_64_BIT_IDX_T", OCTAVE_CONF_USE_64_BIT_IDX_T }, | |
| 1207 { false, "XTRA_CFLAGS", OCTAVE_CONF_XTRA_CFLAGS }, | |
| 1208 { false, "XTRA_CXXFLAGS", OCTAVE_CONF_XTRA_CXXFLAGS }, | |
| 1209 { false, "YACC", OCTAVE_CONF_YACC }, | |
| 1210 { false, "YFLAGS", OCTAVE_CONF_YFLAGS }, | |
| 1211 { false, "api_version", OCTAVE_API_VERSION }, | |
| 1212 { true, "archlibdir", OCTAVE_ARCHLIBDIR }, | |
| 1213 { true, "bindir", OCTAVE_BINDIR }, | |
| 1214 { false, "canonical_host_type", OCTAVE_CANONICAL_HOST_TYPE }, | |
| 1215 { false, "config_opts", OCTAVE_CONF_config_opts }, | |
| 1216 { true, "datadir", OCTAVE_DATADIR }, | |
| 1217 { true, "datarootdir", OCTAVE_DATAROOTDIR }, | |
| 6276 | 1218 { true, "exec_prefix", OCTAVE_EXEC_PREFIX }, |
| 6274 | 1219 { true, "fcnfiledir", OCTAVE_FCNFILEDIR }, |
| 1220 { true, "imagedir", OCTAVE_IMAGEDIR }, | |
| 1221 { true, "includedir", OCTAVE_INCLUDEDIR }, | |
| 1222 { true, "infodir", OCTAVE_INFODIR }, | |
| 6276 | 1223 { true, "infofile", OCTAVE_INFOFILE }, |
| 6274 | 1224 { true, "libdir", OCTAVE_LIBDIR }, |
| 1225 { true, "libexecdir", OCTAVE_LIBEXECDIR }, | |
| 6311 | 1226 { true, "localapiarchlibdir", OCTAVE_LOCALAPIARCHLIBDIR }, |
| 6274 | 1227 { true, "localapifcnfiledir", OCTAVE_LOCALAPIFCNFILEDIR }, |
| 1228 { true, "localapioctfiledir", OCTAVE_LOCALAPIOCTFILEDIR }, | |
| 1229 { true, "localarchlibdir", OCTAVE_LOCALARCHLIBDIR }, | |
| 1230 { true, "localfcnfiledir", OCTAVE_LOCALFCNFILEDIR }, | |
| 1231 { true, "localoctfiledir", OCTAVE_LOCALOCTFILEDIR }, | |
| 1232 { true, "localstartupfiledir", OCTAVE_LOCALSTARTUPFILEDIR }, | |
| 1233 { true, "localverarchlibdir", OCTAVE_LOCALVERARCHLIBDIR }, | |
| 1234 { true, "localverfcnfiledir", OCTAVE_LOCALVERFCNFILEDIR }, | |
| 1235 { true, "localveroctfiledir", OCTAVE_LOCALVEROCTFILEDIR }, | |
| 1236 { true, "man1dir", OCTAVE_MAN1DIR }, | |
| 1237 { false, "man1ext", OCTAVE_MAN1EXT }, | |
| 1238 { true, "mandir", OCTAVE_MANDIR }, | |
| 1239 { true, "octfiledir", OCTAVE_OCTFILEDIR }, | |
| 1240 { true, "octincludedir", OCTAVE_OCTINCLUDEDIR }, | |
| 1241 { true, "octlibdir", OCTAVE_OCTLIBDIR }, | |
| 6276 | 1242 { true, "prefix", OCTAVE_PREFIX }, |
| 6274 | 1243 { true, "startupfiledir", OCTAVE_STARTUPFILEDIR }, |
| 1244 { false, "version", OCTAVE_VERSION }, | |
| 1245 { false, 0, 0 } | |
| 4357 | 1246 }; |
| 1247 | |
| 1248 if (! initialized) | |
| 1249 { | |
| 4675 | 1250 m.assign ("dld", octave_value (octave_supports_dynamic_linking)); |
| 4357 | 1251 |
| 4697 | 1252 oct_mach_info::float_format ff = oct_mach_info::native_float_format (); |
| 1253 m.assign ("float_format", | |
| 1254 octave_value (oct_mach_info::float_format_as_string (ff))); | |
| 1255 | |
| 1256 m.assign ("words_big_endian", | |
| 1257 octave_value (oct_mach_info::words_big_endian ())); | |
| 1258 | |
| 1259 m.assign ("words_little_endian", | |
| 1260 octave_value (oct_mach_info::words_little_endian ())); | |
| 1261 | |
| 4357 | 1262 int i = 0; |
| 4440 | 1263 |
| 1264 while (true) | |
| 4357 | 1265 { |
| 6274 | 1266 const conf_info_struct& elt = conf_info[i++]; |
| 1267 | |
| 1268 const char *key = elt.key; | |
| 4357 | 1269 |
| 1270 if (key) | |
| 6274 | 1271 { |
| 1272 if (elt.subst_home) | |
| 1273 m.assign (key, octave_value (subst_octave_home (elt.val))); | |
| 1274 else | |
| 1275 m.assign (key, octave_value (elt.val)); | |
| 1276 } | |
| 4357 | 1277 else |
| 1278 break; | |
| 1279 } | |
| 1280 | |
| 4691 | 1281 bool unix_system = true; |
| 7013 | 1282 bool mac_system = false; |
| 4691 | 1283 bool windows_system = false; |
| 1284 | |
| 1285 #if defined (WIN32) | |
| 1286 windows_system = true; | |
| 1287 #if !defined (__CYGWIN__) | |
| 1288 unix_system = false; | |
| 1289 #endif | |
| 1290 #endif | |
| 1291 | |
| 7010 | 1292 #if defined (__APPLE__) && defined (__MACH__) |
| 1293 mac_system = true; | |
| 1294 #endif | |
| 1295 | |
| 4691 | 1296 m.assign ("unix", octave_value (unix_system)); |
| 7010 | 1297 m.assign ("mac", octave_value (mac_system)); |
| 4691 | 1298 m.assign ("windows", octave_value (windows_system)); |
| 1299 | |
| 4357 | 1300 initialized = true; |
| 1301 } | |
| 2162 | 1302 |
| 2689 | 1303 int nargin = args.length (); |
| 1304 | |
| 1305 if (nargin == 1) | |
| 1306 { | |
| 3523 | 1307 std::string arg = args(0).string_value (); |
| 2689 | 1308 |
| 1309 if (! error_state) | |
| 4675 | 1310 { |
| 1311 Cell c = m.contents (arg.c_str ()); | |
| 5199 | 1312 |
| 1313 if (c.is_empty ()) | |
| 1314 error ("octave_config_info: no info for `%s'", arg.c_str ()); | |
| 1315 else | |
| 1316 retval = c(0); | |
| 4675 | 1317 } |
| 2689 | 1318 } |
| 1319 else if (nargin == 0) | |
| 4233 | 1320 retval = m; |
| 2689 | 1321 else |
| 5823 | 1322 print_usage (); |
| 2689 | 1323 |
| 1324 return retval; | |
| 2162 | 1325 } |
| 1326 | |
| 1683 | 1327 #if defined (__GNUG__) && defined (DEBUG_NEW_DELETE) |
| 2806 | 1328 |
| 1683 | 1329 int debug_new_delete = 0; |
| 1330 | |
| 1331 typedef void (*vfp)(void); | |
| 1332 extern vfp __new_handler; | |
| 1333 | |
| 1334 void * | |
| 1335 __builtin_new (size_t sz) | |
| 1336 { | |
| 1337 void *p; | |
| 1338 | |
| 1339 /* malloc (0) is unpredictable; avoid it. */ | |
| 1340 if (sz == 0) | |
| 1341 sz = 1; | |
| 2800 | 1342 p = malloc (sz); |
| 1683 | 1343 while (p == 0) |
| 1344 { | |
| 1345 (*__new_handler) (); | |
| 2800 | 1346 p = malloc (sz); |
| 1683 | 1347 } |
| 1348 | |
| 1349 if (debug_new_delete) | |
| 5629 | 1350 std::cerr << "__builtin_new: " << p << std::endl; |
| 1683 | 1351 |
| 1352 return p; | |
| 1353 } | |
| 1354 | |
| 1355 void | |
| 1356 __builtin_delete (void *ptr) | |
| 1357 { | |
| 1358 if (debug_new_delete) | |
| 5629 | 1359 std::cerr << "__builtin_delete: " << ptr << std::endl; |
| 1683 | 1360 |
| 1361 if (ptr) | |
| 1362 free (ptr); | |
| 1363 } | |
| 2806 | 1364 |
| 1683 | 1365 #endif |
| 1366 | |
| 1367 /* | |
| 1368 ;;; Local Variables: *** | |
| 1369 ;;; mode: C++ *** | |
| 1370 ;;; End: *** | |
| 1371 */ |