Mercurial > octave-nkf
annotate src/ov-fcn-handle.cc @ 8377:25bc2d31e1bf
improve OCTAVE_LOCAL_BUFFER
| author | Jaroslav Hajek <highegg@gmail.com> |
|---|---|
| date | Wed, 29 Oct 2008 16:52:10 +0100 |
| parents | 85184151822e |
| children | 7d0492aa522d |
| rev | line source |
|---|---|
| 4343 | 1 /* |
| 2 | |
| 7017 | 3 Copyright (C) 2003, 2004, 2005, 2006, 2007 John W. Eaton |
| 4343 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 4343 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 7016 | 18 along with Octave; see the file COPYING. If not, see |
| 19 <http://www.gnu.org/licenses/>. | |
| 4343 | 20 |
| 21 */ | |
| 22 | |
| 23 #ifdef HAVE_CONFIG_H | |
| 24 #include <config.h> | |
| 25 #endif | |
| 26 | |
| 27 #include <iostream> | |
| 5765 | 28 #include <sstream> |
| 5164 | 29 #include <vector> |
| 4343 | 30 |
| 7336 | 31 #include "file-ops.h" |
|
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32 #include "oct-locbuf.h" |
| 7336 | 33 |
| 4343 | 34 #include "defun.h" |
| 4654 | 35 #include "error.h" |
| 36 #include "gripes.h" | |
| 5663 | 37 #include "input.h" |
| 4343 | 38 #include "oct-map.h" |
| 39 #include "ov-base.h" | |
| 40 #include "ov-fcn-handle.h" | |
| 4980 | 41 #include "ov-usr-fcn.h" |
| 4343 | 42 #include "pr-output.h" |
| 4980 | 43 #include "pt-pr-code.h" |
| 44 #include "pt-misc.h" | |
| 45 #include "pt-stmt.h" | |
| 46 #include "pt-cmd.h" | |
| 47 #include "pt-exp.h" | |
| 48 #include "pt-assign.h" | |
| 4343 | 49 #include "variables.h" |
| 4988 | 50 #include "parse.h" |
| 6625 | 51 #include "unwind-prot.h" |
| 52 #include "defaults.h" | |
| 53 #include "file-stat.h" | |
| 54 #include "load-path.h" | |
| 55 #include "oct-env.h" | |
| 4988 | 56 |
| 57 #include "byte-swap.h" | |
| 58 #include "ls-oct-ascii.h" | |
| 6625 | 59 #include "ls-oct-binary.h" |
| 4988 | 60 #include "ls-hdf5.h" |
| 61 #include "ls-utils.h" | |
| 4343 | 62 |
| 63 DEFINE_OCTAVE_ALLOCATOR (octave_fcn_handle); | |
| 64 | |
| 4612 | 65 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_fcn_handle, |
| 66 "function handle", | |
| 5946 | 67 "function_handle"); |
| 4343 | 68 |
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69 octave_fcn_handle::octave_fcn_handle (const octave_value& f, |
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70 const std::string& n) |
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71 : warn_reload (true), fcn (f), nm (n) |
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72 { |
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73 octave_user_function *uf = fcn.user_function_value (true); |
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74 |
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75 if (uf) |
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76 symbol_table::cache_name (uf->scope (), nm); |
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77 } |
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78 |
| 4924 | 79 octave_value_list |
| 80 octave_fcn_handle::subsref (const std::string& type, | |
| 81 const std::list<octave_value_list>& idx, | |
| 82 int nargout) | |
| 83 { | |
| 84 octave_value_list retval; | |
| 85 | |
| 86 switch (type[0]) | |
| 87 { | |
| 88 case '(': | |
| 89 { | |
| 7336 | 90 out_of_date_check (fcn); |
| 5663 | 91 |
| 7336 | 92 if (fcn.is_defined ()) |
| 93 { | |
| 94 octave_function *f = function_value (); | |
| 5663 | 95 |
| 7336 | 96 if (f) |
| 97 retval = f->subsref (type, idx, nargout); | |
| 5663 | 98 else |
| 7336 | 99 error ("invalid function handle"); |
| 5663 | 100 } |
| 5312 | 101 else |
| 102 error ("invalid function handle"); | |
| 4924 | 103 } |
| 104 break; | |
| 105 | |
| 106 case '{': | |
| 107 case '.': | |
| 108 { | |
| 4930 | 109 std::string typ_nm = type_name (); |
| 110 error ("%s cannot be indexed with %c", typ_nm.c_str (), type[0]); | |
| 4924 | 111 } |
| 112 break; | |
| 113 | |
| 114 default: | |
| 115 panic_impossible (); | |
| 116 } | |
| 117 | |
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118 // There's no need to call next_subsref here -- |
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119 // octave_function::subsref will handle that for us. |
| 4924 | 120 |
| 121 return retval; | |
| 122 } | |
| 123 | |
| 4988 | 124 bool |
| 6625 | 125 octave_fcn_handle::set_fcn (const std::string &octaveroot, |
| 126 const std::string& fpath) | |
| 4988 | 127 { |
| 6625 | 128 bool success = true; |
| 129 | |
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130 if (octaveroot.length () != 0 |
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131 && fpath.length () >= octaveroot.length () |
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132 && fpath.substr (0, octaveroot.length ()) == octaveroot |
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133 && OCTAVE_EXEC_PREFIX != octaveroot) |
| 6625 | 134 { |
| 135 // First check if just replacing matlabroot is enough | |
| 136 std::string str = OCTAVE_EXEC_PREFIX + | |
| 137 fpath.substr (octaveroot.length ()); | |
| 138 file_stat fs (str); | |
| 139 | |
| 140 if (fs.exists ()) | |
| 141 { | |
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142 size_t xpos = str.find_last_of (file_ops::dir_sep_chars ()); |
| 6625 | 143 |
| 7336 | 144 std::string dir_name = str.substr (0, xpos); |
| 6625 | 145 |
| 7336 | 146 octave_function *xfcn |
| 147 = load_fcn_from_file (str, dir_name, "", nm); | |
| 6625 | 148 |
| 7336 | 149 if (xfcn) |
| 150 { | |
| 151 octave_value tmp (xfcn); | |
| 6625 | 152 |
| 7336 | 153 fcn = octave_value (new octave_fcn_handle (tmp, nm)); |
| 6625 | 154 } |
| 155 else | |
| 156 { | |
| 157 error ("function handle points to non-existent function"); | |
| 158 success = false; | |
| 159 } | |
| 160 } | |
| 161 else | |
| 162 { | |
| 163 // Next just search for it anywhere in the system path | |
| 164 string_vector names(3); | |
| 165 names(0) = nm + ".oct"; | |
| 166 names(1) = nm + ".mex"; | |
| 167 names(2) = nm + ".m"; | |
| 168 | |
| 6626 | 169 dir_path p (load_path::system_path ()); |
| 6625 | 170 |
| 171 str = octave_env::make_absolute | |
| 172 (p.find_first_of (names), octave_env::getcwd ()); | |
| 173 | |
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174 size_t xpos = str.find_last_of (file_ops::dir_sep_chars ()); |
| 6625 | 175 |
| 7336 | 176 std::string dir_name = str.substr (0, xpos); |
| 177 | |
| 178 octave_function *xfcn = load_fcn_from_file (str, dir_name, "", nm); | |
| 4989 | 179 |
| 7336 | 180 if (xfcn) |
| 181 { | |
| 182 octave_value tmp (xfcn); | |
| 6625 | 183 |
| 7336 | 184 fcn = octave_value (new octave_fcn_handle (tmp, nm)); |
| 6625 | 185 } |
| 186 else | |
| 187 { | |
| 188 error ("function handle points to non-existent function"); | |
| 189 success = false; | |
| 190 } | |
| 191 } | |
| 192 } | |
| 193 else | |
| 194 { | |
| 195 if (fpath.length () > 0) | |
| 196 { | |
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197 size_t xpos = fpath.find_last_of (file_ops::dir_sep_chars ()); |
| 6625 | 198 |
| 7336 | 199 std::string dir_name = fpath.substr (0, xpos); |
| 200 | |
| 201 octave_function *xfcn = load_fcn_from_file (fpath, dir_name, "", nm); | |
| 6625 | 202 |
| 7336 | 203 if (xfcn) |
| 204 { | |
| 205 octave_value tmp (xfcn); | |
| 6625 | 206 |
| 7336 | 207 fcn = octave_value (new octave_fcn_handle (tmp, nm)); |
| 6625 | 208 } |
| 209 else | |
| 210 { | |
| 211 error ("function handle points to non-existent function"); | |
| 212 success = false; | |
| 213 } | |
| 214 } | |
| 215 else | |
| 216 { | |
| 7336 | 217 fcn = symbol_table::find_function (nm); |
| 218 | |
| 6625 | 219 if (! fcn.is_function ()) |
| 220 { | |
| 221 error ("function handle points to non-existent function"); | |
| 222 success = false; | |
| 223 } | |
| 224 } | |
| 225 } | |
| 226 | |
| 227 return success; | |
| 228 } | |
| 229 | |
| 230 bool | |
| 6974 | 231 octave_fcn_handle::save_ascii (std::ostream& os) |
| 6625 | 232 { |
| 4988 | 233 if (nm == "@<anonymous>") |
| 234 { | |
| 6625 | 235 os << nm << "\n"; |
| 236 | |
| 4989 | 237 print_raw (os, true); |
| 238 os << "\n"; | |
| 6625 | 239 |
| 7336 | 240 if (fcn.is_undefined ()) |
| 6625 | 241 return false; |
| 242 | |
| 243 octave_user_function *f = fcn.user_function_value (); | |
| 244 | |
| 7336 | 245 std::list<symbol_table::symbol_record> vars |
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246 = symbol_table::all_variables (f->scope (), 0); |
| 6625 | 247 |
| 7336 | 248 size_t varlen = vars.size (); |
| 6625 | 249 |
| 250 if (varlen > 0) | |
| 251 { | |
| 252 os << "# length: " << varlen << "\n"; | |
| 253 | |
| 7336 | 254 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
| 255 p != vars.end (); p++) | |
| 6625 | 256 { |
| 7336 | 257 if (! save_ascii_data (os, p->varval (), p->name (), false, 0)) |
| 6625 | 258 return os; |
| 259 } | |
| 260 } | |
| 261 } | |
| 262 else | |
| 263 { | |
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264 octave_function *f = function_value (); |
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265 std::string fnm = f ? f->fcn_file_name () : std::string (); |
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266 |
| 6625 | 267 os << "# octaveroot: " << OCTAVE_EXEC_PREFIX << "\n"; |
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268 if (! fnm.empty ()) |
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269 os << "# path: " << fnm << "\n"; |
| 6625 | 270 os << nm << "\n"; |
| 4988 | 271 } |
| 272 | |
| 273 return true; | |
| 274 } | |
| 275 | |
| 276 bool | |
| 277 octave_fcn_handle::load_ascii (std::istream& is) | |
| 278 { | |
| 6625 | 279 bool success = true; |
| 280 | |
| 281 std::streampos pos = is.tellg (); | |
| 282 std::string octaveroot = extract_keyword (is, "octaveroot", true); | |
| 283 if (octaveroot.length() == 0) | |
| 284 { | |
| 285 is.seekg (pos); | |
| 286 is.clear (); | |
| 287 } | |
| 288 pos = is.tellg (); | |
| 289 std::string fpath = extract_keyword (is, "path", true); | |
| 290 if (fpath.length() == 0) | |
| 291 { | |
| 292 is.seekg (pos); | |
| 293 is.clear (); | |
| 294 } | |
| 295 | |
| 4988 | 296 is >> nm; |
| 4989 | 297 |
| 4988 | 298 if (nm == "@<anonymous>") |
| 299 { | |
| 6625 | 300 octave_idx_type len = 0; |
| 4988 | 301 char c; |
| 5765 | 302 std::ostringstream buf; |
| 4988 | 303 |
| 4989 | 304 // Skip preceeding newline(s). |
| 305 while (is.get (c) && c == '\n') | |
| 306 /* do nothing */; | |
| 4988 | 307 |
| 308 if (is) | |
| 309 { | |
| 310 buf << c; | |
| 311 | |
| 312 // Get a line of text whitespace characters included, leaving | |
| 4989 | 313 // newline in the stream. |
| 314 | |
| 4988 | 315 while (is.peek () != '\n') |
| 316 { | |
| 317 is.get (c); | |
| 318 if (! is) | |
| 319 break; | |
| 320 buf << c; | |
| 321 } | |
| 322 } | |
| 323 | |
| 6625 | 324 pos = is.tellg (); |
| 7336 | 325 |
| 326 symbol_table::scope_id local_scope = symbol_table::alloc_scope (); | |
| 4988 | 327 |
| 6625 | 328 if (extract_keyword (is, "length", len, true) && len >= 0) |
| 4989 | 329 { |
| 6625 | 330 if (len > 0) |
| 331 { | |
| 332 for (octave_idx_type i = 0; i < len; i++) | |
| 333 { | |
| 334 octave_value t2; | |
| 335 bool dummy; | |
| 336 | |
| 337 std::string name | |
| 338 = read_ascii_data (is, std::string (), dummy, t2, i); | |
| 339 | |
| 340 if (!is) | |
| 341 { | |
| 342 error ("load: failed to load anonymous function handle"); | |
| 343 break; | |
| 344 } | |
| 345 | |
| 7901 | 346 symbol_table::varref (name, local_scope, 0) = t2; |
| 6625 | 347 } |
| 348 } | |
| 4989 | 349 } |
| 350 else | |
| 6625 | 351 { |
| 352 is.seekg (pos); | |
| 353 is.clear (); | |
| 354 } | |
| 355 | |
| 356 if (is && success) | |
| 357 { | |
| 358 unwind_protect::begin_frame ("anon_ascii_load"); | |
| 359 | |
| 7336 | 360 symbol_table::push_scope (local_scope); |
| 361 | |
| 362 unwind_protect::add (symbol_table::pop_scope); | |
| 6625 | 363 |
| 364 int parse_status; | |
| 365 octave_value anon_fcn_handle = | |
| 366 eval_string (buf.str (), true, parse_status); | |
| 367 | |
| 368 if (parse_status == 0) | |
| 369 { | |
| 370 octave_fcn_handle *fh = | |
| 371 anon_fcn_handle.fcn_handle_value (); | |
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372 |
| 6625 | 373 if (fh) |
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374 { |
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375 fcn = fh->fcn; |
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376 |
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377 octave_user_function *uf = fcn.user_function_value (true); |
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378 |
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379 if (uf) |
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380 symbol_table::cache_name (uf->scope (), nm); |
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381 } |
| 6625 | 382 else |
| 383 success = false; | |
| 384 } | |
| 385 else | |
| 386 success = false; | |
| 387 | |
| 388 unwind_protect::run_frame ("anon_ascii_load"); | |
| 389 } | |
| 390 else | |
| 391 success = false; | |
| 392 | |
| 7336 | 393 symbol_table::erase_scope (local_scope); |
| 4988 | 394 } |
| 395 else | |
| 6625 | 396 success = set_fcn (octaveroot, fpath); |
| 4988 | 397 |
| 6625 | 398 return success; |
| 4988 | 399 } |
| 400 | |
| 401 bool | |
| 6625 | 402 octave_fcn_handle::save_binary (std::ostream& os, bool& save_as_floats) |
| 4988 | 403 { |
| 404 if (nm == "@<anonymous>") | |
| 405 { | |
| 6625 | 406 std::ostringstream nmbuf; |
| 407 | |
| 7336 | 408 if (fcn.is_undefined ()) |
| 6625 | 409 return false; |
| 410 | |
| 411 octave_user_function *f = fcn.user_function_value (); | |
| 412 | |
| 7336 | 413 std::list<symbol_table::symbol_record> vars |
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414 = symbol_table::all_variables (f->scope (), 0); |
| 6625 | 415 |
| 7336 | 416 size_t varlen = vars.size (); |
| 6625 | 417 |
| 418 if (varlen > 0) | |
| 419 nmbuf << nm << " " << varlen; | |
| 420 else | |
| 421 nmbuf << nm; | |
| 422 | |
| 423 std::string buf_str = nmbuf.str(); | |
| 424 int32_t tmp = buf_str.length (); | |
| 425 os.write (reinterpret_cast<char *> (&tmp), 4); | |
| 426 os.write (buf_str.c_str (), buf_str.length ()); | |
| 427 | |
| 5765 | 428 std::ostringstream buf; |
| 4988 | 429 print_raw (buf, true); |
| 5765 | 430 std::string stmp = buf.str (); |
| 4988 | 431 tmp = stmp.length (); |
| 5760 | 432 os.write (reinterpret_cast<char *> (&tmp), 4); |
| 4988 | 433 os.write (stmp.c_str (), stmp.length ()); |
| 6625 | 434 |
| 435 if (varlen > 0) | |
| 436 { | |
| 7336 | 437 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
| 438 p != vars.end (); p++) | |
| 6625 | 439 { |
| 7336 | 440 if (! save_binary_data (os, p->varval (), p->name (), |
| 6625 | 441 "", 0, save_as_floats)) |
| 442 return os; | |
| 443 } | |
| 444 } | |
| 445 } | |
| 446 else | |
| 447 { | |
| 448 std::ostringstream nmbuf; | |
| 449 | |
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450 octave_function *f = function_value (); |
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451 std::string fnm = f ? f->fcn_file_name () : std::string (); |
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452 |
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|
453 nmbuf << nm << "\n" << OCTAVE_EXEC_PREFIX << "\n" << fnm; |
| 6625 | 454 |
| 455 std::string buf_str = nmbuf.str (); | |
| 456 int32_t tmp = buf_str.length (); | |
| 457 os.write (reinterpret_cast<char *> (&tmp), 4); | |
| 458 os.write (buf_str.c_str (), buf_str.length ()); | |
| 4988 | 459 } |
| 7336 | 460 |
| 4988 | 461 return true; |
| 462 } | |
| 463 | |
| 464 bool | |
| 465 octave_fcn_handle::load_binary (std::istream& is, bool swap, | |
| 6625 | 466 oct_mach_info::float_format fmt) |
| 4988 | 467 { |
| 6625 | 468 bool success = true; |
| 7336 | 469 |
| 5828 | 470 int32_t tmp; |
| 5760 | 471 if (! is.read (reinterpret_cast<char *> (&tmp), 4)) |
| 4988 | 472 return false; |
| 473 if (swap) | |
| 474 swap_bytes<4> (&tmp); | |
| 475 | |
| 476 OCTAVE_LOCAL_BUFFER (char, ctmp1, tmp+1); | |
| 477 is.read (ctmp1, tmp); | |
| 478 nm = std::string (ctmp1); | |
| 479 | |
| 480 if (! is) | |
| 481 return false; | |
| 482 | |
| 6625 | 483 if (nm.length() >= 12 && nm.substr (0, 12) == "@<anonymous>") |
| 4988 | 484 { |
| 6625 | 485 octave_idx_type len = 0; |
| 486 | |
| 487 if (nm.length() > 12) | |
| 488 { | |
| 489 std::istringstream nm_is (nm.substr(12)); | |
| 490 nm_is >> len; | |
| 491 nm = nm.substr(0,12); | |
| 492 } | |
| 493 | |
| 5760 | 494 if (! is.read (reinterpret_cast<char *> (&tmp), 4)) |
| 4988 | 495 return false; |
| 496 if (swap) | |
| 497 swap_bytes<4> (&tmp); | |
| 498 | |
| 499 OCTAVE_LOCAL_BUFFER (char, ctmp2, tmp+1); | |
| 500 is.read (ctmp2, tmp); | |
| 501 | |
| 7336 | 502 symbol_table::scope_id local_scope = symbol_table::alloc_scope (); |
| 503 | |
| 6625 | 504 if (len > 0) |
| 4989 | 505 { |
| 6625 | 506 for (octave_idx_type i = 0; i < len; i++) |
| 507 { | |
| 508 octave_value t2; | |
| 509 bool dummy; | |
| 510 std::string doc; | |
| 511 | |
| 512 std::string name = | |
| 513 read_binary_data (is, swap, fmt, std::string (), | |
| 514 dummy, t2, doc); | |
| 515 | |
| 516 if (!is) | |
| 517 { | |
| 518 error ("load: failed to load anonymous function handle"); | |
| 519 break; | |
| 520 } | |
| 521 | |
| 7336 | 522 symbol_table::varref (name, local_scope) = t2; |
| 6625 | 523 } |
| 524 } | |
| 525 | |
| 526 if (is && success) | |
| 527 { | |
| 528 unwind_protect::begin_frame ("anon_binary_load"); | |
| 529 | |
| 7336 | 530 symbol_table::push_scope (local_scope); |
| 531 | |
| 532 unwind_protect::add (symbol_table::pop_scope); | |
| 6625 | 533 |
| 534 int parse_status; | |
| 535 octave_value anon_fcn_handle = | |
| 536 eval_string (ctmp2, true, parse_status); | |
| 537 | |
| 538 if (parse_status == 0) | |
| 539 { | |
| 540 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); | |
|
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541 |
| 6625 | 542 if (fh) |
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543 { |
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544 fcn = fh->fcn; |
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545 |
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546 octave_user_function *uf = fcn.user_function_value (true); |
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547 |
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548 if (uf) |
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549 symbol_table::cache_name (uf->scope (), nm); |
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550 } |
| 6625 | 551 else |
| 552 success = false; | |
| 553 } | |
| 4989 | 554 else |
| 6625 | 555 success = false; |
| 556 | |
| 557 unwind_protect::run_frame ("anon_binary_load"); | |
| 4989 | 558 } |
| 6625 | 559 |
| 7336 | 560 symbol_table::erase_scope (local_scope); |
| 4988 | 561 } |
| 562 else | |
| 563 { | |
| 6625 | 564 std::string octaveroot; |
| 565 std::string fpath; | |
| 566 | |
| 8021 | 567 if (nm.find_first_of ("\n") != std::string::npos) |
| 6225 | 568 { |
| 6625 | 569 size_t pos1 = nm.find_first_of ("\n"); |
| 570 size_t pos2 = nm.find_first_of ("\n", pos1 + 1); | |
| 571 octaveroot = nm.substr (pos1 + 1, pos2 - pos1 - 1); | |
| 572 fpath = nm.substr (pos2 + 1); | |
| 573 nm = nm.substr (0, pos1); | |
| 6225 | 574 } |
| 6625 | 575 |
| 576 success = set_fcn (octaveroot, fpath); | |
| 577 } | |
| 578 | |
| 579 return success; | |
| 4988 | 580 } |
| 581 | |
| 582 #if defined (HAVE_HDF5) | |
| 583 bool | |
| 584 octave_fcn_handle::save_hdf5 (hid_t loc_id, const char *name, | |
| 6625 | 585 bool save_as_floats) |
| 4988 | 586 { |
| 7336 | 587 bool retval = true; |
| 588 | |
| 4988 | 589 hid_t group_hid = -1; |
| 590 group_hid = H5Gcreate (loc_id, name, 0); | |
| 7336 | 591 if (group_hid < 0) |
| 592 return false; | |
| 4988 | 593 |
| 594 hid_t space_hid = -1, data_hid = -1, type_hid = -1;; | |
| 595 | |
| 596 // attach the type of the variable | |
| 597 type_hid = H5Tcopy (H5T_C_S1); | |
| 598 H5Tset_size (type_hid, nm.length () + 1); | |
| 599 if (type_hid < 0) | |
| 600 { | |
| 601 H5Gclose (group_hid); | |
| 602 return false; | |
| 603 } | |
| 604 | |
| 605 OCTAVE_LOCAL_BUFFER (hsize_t, hdims, 2); | |
| 606 hdims[0] = 0; | |
| 607 hdims[1] = 0; | |
| 5760 | 608 space_hid = H5Screate_simple (0 , hdims, 0); |
| 4988 | 609 if (space_hid < 0) |
| 610 { | |
| 611 H5Tclose (type_hid); | |
| 612 H5Gclose (group_hid); | |
| 613 return false; | |
| 614 } | |
| 615 | |
| 616 data_hid = H5Dcreate (group_hid, "nm", type_hid, space_hid, H5P_DEFAULT); | |
| 617 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, | |
| 5760 | 618 H5P_DEFAULT, nm.c_str ()) < 0) |
| 4988 | 619 { |
| 620 H5Sclose (space_hid); | |
| 621 H5Tclose (type_hid); | |
| 622 H5Gclose (group_hid); | |
| 623 return false; | |
| 624 } | |
| 625 H5Dclose (data_hid); | |
| 626 | |
| 627 if (nm == "@<anonymous>") | |
| 628 { | |
| 5765 | 629 std::ostringstream buf; |
| 4988 | 630 print_raw (buf, true); |
| 5765 | 631 std::string stmp = buf.str (); |
| 4988 | 632 |
| 633 // attach the type of the variable | |
| 634 H5Tset_size (type_hid, stmp.length () + 1); | |
| 635 if (type_hid < 0) | |
| 636 { | |
| 6695 | 637 H5Sclose (space_hid); |
| 4988 | 638 H5Gclose (group_hid); |
| 639 return false; | |
| 640 } | |
| 641 | |
| 642 data_hid = H5Dcreate (group_hid, "fcn", type_hid, space_hid, | |
| 643 H5P_DEFAULT); | |
| 644 if (data_hid < 0 || H5Dwrite (data_hid, type_hid, H5S_ALL, H5S_ALL, | |
| 5760 | 645 H5P_DEFAULT, stmp.c_str ()) < 0) |
| 4988 | 646 { |
| 647 H5Sclose (space_hid); | |
| 648 H5Tclose (type_hid); | |
| 649 H5Gclose (group_hid); | |
| 650 return false; | |
| 651 } | |
| 652 | |
| 653 H5Dclose (data_hid); | |
| 6625 | 654 |
| 655 octave_user_function *f = fcn.user_function_value (); | |
| 656 | |
| 7336 | 657 std::list<symbol_table::symbol_record> vars |
|
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|
658 = symbol_table::all_variables (f->scope (), 0); |
| 7336 | 659 |
| 660 size_t varlen = vars.size (); | |
| 6625 | 661 |
| 662 if (varlen > 0) | |
| 663 { | |
| 664 hid_t as_id = H5Screate (H5S_SCALAR); | |
| 665 | |
| 666 if (as_id >= 0) | |
| 667 { | |
| 668 hid_t a_id = H5Acreate (group_hid, "SYMBOL_TABLE", | |
| 669 H5T_NATIVE_IDX, as_id, H5P_DEFAULT); | |
| 670 | |
| 671 if (a_id >= 0) | |
| 672 { | |
| 673 retval = (H5Awrite (a_id, H5T_NATIVE_IDX, &varlen) >= 0); | |
| 674 | |
| 675 H5Aclose (a_id); | |
| 676 } | |
| 677 else | |
| 678 retval = false; | |
| 679 | |
| 680 H5Sclose (as_id); | |
| 681 } | |
| 682 else | |
| 683 retval = false; | |
| 684 | |
| 685 data_hid = H5Gcreate (group_hid, "symbol table", 0); | |
| 686 if (data_hid < 0) | |
| 687 { | |
| 688 H5Sclose (space_hid); | |
| 689 H5Tclose (type_hid); | |
| 690 H5Gclose (group_hid); | |
| 691 return false; | |
| 692 } | |
| 693 | |
| 7336 | 694 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
| 695 p != vars.end (); p++) | |
| 6625 | 696 { |
| 7336 | 697 if (! add_hdf5_data (data_hid, p->varval (), p->name (), |
| 6625 | 698 "", false, save_as_floats)) |
| 699 break; | |
| 700 } | |
| 701 H5Gclose (data_hid); | |
| 702 } | |
| 703 } | |
| 704 else | |
| 705 { | |
| 706 std::string octaveroot = OCTAVE_EXEC_PREFIX; | |
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707 |
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708 octave_function *f = function_value (); |
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|
709 std::string fpath = f ? f->fcn_file_name () : std::string (); |
| 6625 | 710 |
| 711 H5Sclose (space_hid); | |
| 712 hdims[0] = 1; | |
| 713 hdims[1] = octaveroot.length (); | |
| 714 space_hid = H5Screate_simple (0 , hdims, 0); | |
| 715 if (space_hid < 0) | |
| 716 { | |
| 717 H5Tclose (type_hid); | |
| 718 H5Gclose (group_hid); | |
| 719 return false; | |
| 720 } | |
| 721 | |
| 722 H5Tclose (type_hid); | |
| 723 type_hid = H5Tcopy (H5T_C_S1); | |
| 724 H5Tset_size (type_hid, octaveroot.length () + 1); | |
| 725 | |
| 726 hid_t a_id = H5Acreate (group_hid, "OCTAVEROOT", | |
| 727 type_hid, space_hid, H5P_DEFAULT); | |
| 728 | |
| 729 if (a_id >= 0) | |
| 730 { | |
| 731 retval = (H5Awrite (a_id, type_hid, octaveroot.c_str ()) >= 0); | |
| 732 | |
| 733 H5Aclose (a_id); | |
| 734 } | |
| 735 else | |
| 6695 | 736 { |
| 737 H5Sclose (space_hid); | |
| 738 H5Tclose (type_hid); | |
| 739 H5Gclose (group_hid); | |
| 740 return false; | |
| 741 } | |
| 6625 | 742 |
| 743 H5Sclose (space_hid); | |
| 744 hdims[0] = 1; | |
| 745 hdims[1] = fpath.length (); | |
| 746 space_hid = H5Screate_simple (0 , hdims, 0); | |
| 747 if (space_hid < 0) | |
| 748 { | |
| 749 H5Tclose (type_hid); | |
| 750 H5Gclose (group_hid); | |
| 751 return false; | |
| 752 } | |
| 753 | |
| 754 H5Tclose (type_hid); | |
| 755 type_hid = H5Tcopy (H5T_C_S1); | |
| 756 H5Tset_size (type_hid, fpath.length () + 1); | |
| 757 | |
| 758 a_id = H5Acreate (group_hid, "FILE", type_hid, space_hid, H5P_DEFAULT); | |
| 759 | |
| 760 if (a_id >= 0) | |
| 761 { | |
| 762 retval = (H5Awrite (a_id, type_hid, fpath.c_str ()) >= 0); | |
| 763 | |
| 764 H5Aclose (a_id); | |
| 765 } | |
| 766 else | |
| 767 retval = false; | |
| 4988 | 768 } |
| 769 | |
| 770 H5Sclose (space_hid); | |
| 771 H5Tclose (type_hid); | |
| 772 H5Gclose (group_hid); | |
| 773 | |
| 774 return retval; | |
| 775 } | |
| 776 | |
| 777 bool | |
| 778 octave_fcn_handle::load_hdf5 (hid_t loc_id, const char *name, | |
| 6625 | 779 bool have_h5giterate_bug) |
| 4988 | 780 { |
| 7336 | 781 bool success = true; |
| 782 | |
| 4988 | 783 hid_t group_hid, data_hid, space_hid, type_hid, type_class_hid, st_id; |
| 784 hsize_t rank; | |
| 785 int slen; | |
| 786 | |
| 787 group_hid = H5Gopen (loc_id, name); | |
| 7336 | 788 if (group_hid < 0) |
| 789 return false; | |
| 4988 | 790 |
| 791 data_hid = H5Dopen (group_hid, "nm"); | |
| 792 | |
| 793 if (data_hid < 0) | |
| 794 { | |
| 795 H5Gclose (group_hid); | |
| 796 return false; | |
| 797 } | |
| 798 | |
| 799 type_hid = H5Dget_type (data_hid); | |
| 800 type_class_hid = H5Tget_class (type_hid); | |
| 801 | |
| 802 if (type_class_hid != H5T_STRING) | |
| 803 { | |
| 804 H5Tclose (type_hid); | |
| 805 H5Dclose (data_hid); | |
| 806 H5Gclose (group_hid); | |
| 807 return false; | |
| 808 } | |
| 809 | |
| 810 space_hid = H5Dget_space (data_hid); | |
| 811 rank = H5Sget_simple_extent_ndims (space_hid); | |
| 812 | |
| 813 if (rank != 0) | |
| 814 { | |
| 815 H5Sclose (space_hid); | |
| 816 H5Tclose (type_hid); | |
| 817 H5Dclose (data_hid); | |
| 818 H5Gclose (group_hid); | |
| 819 return false; | |
| 820 } | |
| 821 | |
| 822 slen = H5Tget_size (type_hid); | |
| 823 if (slen < 0) | |
| 824 { | |
| 825 H5Sclose (space_hid); | |
| 826 H5Tclose (type_hid); | |
| 827 H5Dclose (data_hid); | |
| 828 H5Gclose (group_hid); | |
| 829 return false; | |
| 830 } | |
| 831 | |
| 832 OCTAVE_LOCAL_BUFFER (char, nm_tmp, slen); | |
| 833 | |
| 834 // create datatype for (null-terminated) string to read into: | |
| 835 st_id = H5Tcopy (H5T_C_S1); | |
| 836 H5Tset_size (st_id, slen); | |
| 837 | |
| 5760 | 838 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, nm_tmp) < 0) |
| 4988 | 839 { |
| 6695 | 840 H5Tclose (st_id); |
| 4988 | 841 H5Sclose (space_hid); |
| 842 H5Tclose (type_hid); | |
| 6695 | 843 H5Dclose (data_hid); |
| 4988 | 844 H5Gclose (group_hid); |
| 845 return false; | |
| 846 } | |
| 847 H5Tclose (st_id); | |
| 848 H5Dclose (data_hid); | |
| 849 nm = nm_tmp; | |
| 850 | |
| 851 if (nm == "@<anonymous>") | |
| 852 { | |
| 853 data_hid = H5Dopen (group_hid, "fcn"); | |
| 854 | |
| 855 if (data_hid < 0) | |
| 856 { | |
| 6695 | 857 H5Sclose (space_hid); |
| 858 H5Tclose (type_hid); | |
| 4988 | 859 H5Gclose (group_hid); |
| 860 return false; | |
| 861 } | |
| 862 | |
| 6695 | 863 H5Tclose (type_hid); |
| 4988 | 864 type_hid = H5Dget_type (data_hid); |
| 865 type_class_hid = H5Tget_class (type_hid); | |
| 866 | |
| 867 if (type_class_hid != H5T_STRING) | |
| 868 { | |
| 6695 | 869 H5Sclose (space_hid); |
| 4988 | 870 H5Tclose (type_hid); |
| 871 H5Dclose (data_hid); | |
| 872 H5Gclose (group_hid); | |
| 873 return false; | |
| 874 } | |
| 875 | |
| 6695 | 876 H5Sclose (space_hid); |
| 4988 | 877 space_hid = H5Dget_space (data_hid); |
| 878 rank = H5Sget_simple_extent_ndims (space_hid); | |
| 879 | |
| 880 if (rank != 0) | |
| 881 { | |
| 882 H5Sclose (space_hid); | |
| 883 H5Tclose (type_hid); | |
| 884 H5Dclose (data_hid); | |
| 885 H5Gclose (group_hid); | |
| 886 return false; | |
| 887 } | |
| 888 | |
| 889 slen = H5Tget_size (type_hid); | |
| 890 if (slen < 0) | |
| 891 { | |
| 892 H5Sclose (space_hid); | |
| 893 H5Tclose (type_hid); | |
| 894 H5Dclose (data_hid); | |
| 895 H5Gclose (group_hid); | |
| 896 return false; | |
| 897 } | |
| 898 | |
| 899 OCTAVE_LOCAL_BUFFER (char, fcn_tmp, slen); | |
| 900 | |
| 901 // create datatype for (null-terminated) string to read into: | |
| 902 st_id = H5Tcopy (H5T_C_S1); | |
| 903 H5Tset_size (st_id, slen); | |
| 904 | |
| 5760 | 905 if (H5Dread (data_hid, st_id, H5S_ALL, H5S_ALL, H5P_DEFAULT, fcn_tmp) < 0) |
| 4988 | 906 { |
| 6695 | 907 H5Tclose (st_id); |
| 4988 | 908 H5Sclose (space_hid); |
| 909 H5Tclose (type_hid); | |
| 6695 | 910 H5Dclose (data_hid); |
| 4988 | 911 H5Gclose (group_hid); |
| 912 return false; | |
| 913 } | |
| 6695 | 914 H5Tclose (st_id); |
| 4988 | 915 H5Dclose (data_hid); |
| 6625 | 916 |
| 917 octave_idx_type len = 0; | |
| 918 | |
| 919 // we have to pull some shenanigans here to make sure | |
| 920 // HDF5 doesn't print out all sorts of error messages if we | |
| 921 // call H5Aopen for a non-existing attribute | |
| 922 | |
| 923 H5E_auto_t err_func; | |
| 924 void *err_func_data; | |
| 4988 | 925 |
| 6625 | 926 // turn off error reporting temporarily, but save the error |
| 927 // reporting function: | |
| 928 H5Eget_auto (&err_func, &err_func_data); | |
| 929 H5Eset_auto (0, 0); | |
| 930 | |
| 931 hid_t attr_id = H5Aopen_name (group_hid, "SYMBOL_TABLE"); | |
| 4988 | 932 |
| 6625 | 933 if (attr_id >= 0) |
| 934 { | |
| 935 if (H5Aread (attr_id, H5T_NATIVE_IDX, &len) < 0) | |
| 936 success = false; | |
| 937 | |
| 938 H5Aclose (attr_id); | |
| 939 } | |
| 940 | |
| 941 // restore error reporting: | |
| 942 H5Eset_auto (err_func, err_func_data); | |
| 943 | |
| 7336 | 944 symbol_table::scope_id local_scope = symbol_table::alloc_scope (); |
| 945 | |
| 6625 | 946 if (len > 0 && success) |
| 4989 | 947 { |
| 6625 | 948 #ifdef HAVE_H5GGET_NUM_OBJS |
| 949 hsize_t num_obj = 0; | |
| 950 data_hid = H5Gopen (group_hid, "symbol table"); | |
| 951 H5Gget_num_objs (data_hid, &num_obj); | |
| 952 H5Gclose (data_hid); | |
| 953 | |
| 954 if (num_obj != static_cast<hsize_t>(len)) | |
| 955 { | |
| 956 error ("load: failed to load anonymous function handle"); | |
| 957 success = false; | |
| 958 } | |
| 959 #endif | |
| 960 | |
| 961 if (! error_state) | |
| 962 { | |
| 963 hdf5_callback_data dsub; | |
| 964 int current_item = 0; | |
| 965 for (octave_idx_type i = 0; i < len; i++) | |
| 966 { | |
| 967 if (H5Giterate (group_hid, "symbol table", ¤t_item, | |
| 968 hdf5_read_next_data, &dsub) <= 0) | |
| 969 { | |
| 970 error ("load: failed to load anonymous function handle"); | |
| 971 success = false; | |
| 972 break; | |
| 973 } | |
| 974 | |
| 975 if (have_h5giterate_bug) | |
| 976 current_item++; // H5Giterate returns last index processed | |
| 977 | |
| 7336 | 978 symbol_table::varref (dsub.name, local_scope) = dsub.tc; |
| 6625 | 979 } |
| 980 } | |
| 981 } | |
| 982 | |
| 983 if (success) | |
| 984 { | |
| 985 unwind_protect::begin_frame ("anon_hdf5_load"); | |
| 986 | |
| 7336 | 987 symbol_table::push_scope (local_scope); |
| 988 | |
| 989 unwind_protect::add (symbol_table::pop_scope); | |
| 6625 | 990 |
| 991 int parse_status; | |
| 992 octave_value anon_fcn_handle = | |
| 993 eval_string (fcn_tmp, true, parse_status); | |
| 994 | |
| 995 if (parse_status == 0) | |
| 996 { | |
| 997 octave_fcn_handle *fh = anon_fcn_handle.fcn_handle_value (); | |
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998 |
| 6625 | 999 if (fh) |
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1000 { |
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1001 fcn = fh->fcn; |
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1002 |
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1003 octave_user_function *uf = fcn.user_function_value (true); |
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1004 |
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1005 if (uf) |
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1006 symbol_table::cache_name (uf->scope (), nm); |
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1007 } |
| 6625 | 1008 else |
| 1009 success = false; | |
| 1010 } | |
| 4989 | 1011 else |
| 6625 | 1012 success = false; |
| 1013 | |
| 1014 unwind_protect::run_frame ("anon_hdf5_load"); | |
| 4989 | 1015 } |
| 6625 | 1016 |
| 7336 | 1017 symbol_table::erase_scope (local_scope); |
| 4988 | 1018 } |
| 1019 else | |
| 1020 { | |
| 6625 | 1021 std::string octaveroot; |
| 1022 std::string fpath; | |
| 1023 | |
| 1024 // we have to pull some shenanigans here to make sure | |
| 1025 // HDF5 doesn't print out all sorts of error messages if we | |
| 1026 // call H5Aopen for a non-existing attribute | |
| 1027 | |
| 1028 H5E_auto_t err_func; | |
| 1029 void *err_func_data; | |
| 1030 | |
| 1031 // turn off error reporting temporarily, but save the error | |
| 1032 // reporting function: | |
| 1033 H5Eget_auto (&err_func, &err_func_data); | |
| 1034 H5Eset_auto (0, 0); | |
| 1035 | |
| 1036 hid_t attr_id = H5Aopen_name (group_hid, "OCTAVEROOT"); | |
| 1037 if (attr_id >= 0) | |
| 6225 | 1038 { |
| 6695 | 1039 H5Tclose (type_hid); |
| 6625 | 1040 type_hid = H5Aget_type (attr_id); |
| 1041 type_class_hid = H5Tget_class (type_hid); | |
| 1042 | |
| 1043 if (type_class_hid != H5T_STRING) | |
| 1044 success = false; | |
| 1045 else | |
| 1046 { | |
| 1047 slen = H5Tget_size (type_hid); | |
| 1048 st_id = H5Tcopy (H5T_C_S1); | |
| 1049 H5Tset_size (st_id, slen); | |
| 1050 OCTAVE_LOCAL_BUFFER (char, root_tmp, slen); | |
| 1051 | |
| 1052 if (H5Aread (attr_id, st_id, root_tmp) < 0) | |
| 1053 success = false; | |
| 1054 else | |
| 1055 octaveroot = root_tmp; | |
| 6695 | 1056 |
| 1057 H5Tclose (st_id); | |
| 6625 | 1058 } |
| 1059 | |
| 1060 H5Aclose (attr_id); | |
| 6225 | 1061 } |
| 6625 | 1062 |
| 6695 | 1063 if (success) |
| 6625 | 1064 { |
| 6695 | 1065 attr_id = H5Aopen_name (group_hid, "FILE"); |
| 1066 if (attr_id >= 0) | |
| 1067 { | |
| 1068 H5Tclose (type_hid); | |
| 1069 type_hid = H5Aget_type (attr_id); | |
| 1070 type_class_hid = H5Tget_class (type_hid); | |
| 6625 | 1071 |
| 6695 | 1072 if (type_class_hid != H5T_STRING) |
| 6625 | 1073 success = false; |
| 1074 else | |
| 6695 | 1075 { |
| 1076 slen = H5Tget_size (type_hid); | |
| 1077 st_id = H5Tcopy (H5T_C_S1); | |
| 1078 H5Tset_size (st_id, slen); | |
| 1079 OCTAVE_LOCAL_BUFFER (char, path_tmp, slen); | |
| 1080 | |
| 1081 if (H5Aread (attr_id, st_id, path_tmp) < 0) | |
| 1082 success = false; | |
| 1083 else | |
| 1084 fpath = path_tmp; | |
| 1085 | |
| 1086 H5Tclose (st_id); | |
| 1087 } | |
| 1088 | |
| 1089 H5Aclose (attr_id); | |
| 6625 | 1090 } |
| 1091 } | |
| 1092 | |
| 1093 // restore error reporting: | |
| 1094 H5Eset_auto (err_func, err_func_data); | |
| 1095 | |
| 1096 success = (success ? set_fcn (octaveroot, fpath) : success); | |
| 4988 | 1097 } |
| 1098 | |
| 6695 | 1099 H5Tclose (type_hid); |
| 1100 H5Sclose (space_hid); | |
| 1101 H5Gclose (group_hid); | |
| 1102 | |
| 6625 | 1103 return success; |
| 4988 | 1104 } |
| 6625 | 1105 |
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1106 #endif |
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1107 |
| 6625 | 1108 /* |
| 1109 | |
| 1110 %!test | |
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1111 %! a = 2; |
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1112 %! f = @(x) a + x; |
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1113 %! g = @(x) 2 * x; |
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1114 %! hm = @flops; |
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1115 %! hdld = @svd; |
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1116 %! hbi = @log2; |
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1117 %! f2 = f; |
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1118 %! g2 = g; |
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1119 %! hm2 = hm; |
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1120 %! hdld2 = hdld; |
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1121 %! hbi2 = hbi; |
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1122 %! modes = {"-text", "-binary"}; |
| 6625 | 1123 %! if (!isempty(findstr(octave_config_info ("DEFS"),"HAVE_HDF5"))) |
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1124 %! modes(end+1) = "-hdf5"; |
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1125 %! endif |
| 7901 | 1126 %! for i = 1:numel (modes) |
| 1127 %! mode = modes{i}; | |
| 6625 | 1128 %! nm = tmpnam(); |
| 1129 %! unwind_protect | |
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1130 %! save (mode, nm, "f2", "g2", "hm2", "hdld2", "hbi2"); |
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1131 %! clear f2 g2 hm2 hdld2 hbi2 |
| 6625 | 1132 %! load (nm); |
| 1133 %! assert (f(2),f2(2)); | |
| 1134 %! assert (g(2),g2(2)); | |
| 1135 %! assert (g(3),g2(3)); | |
| 1136 %! unlink (nm); | |
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1137 %! save (mode, nm, "f2", "g2", "hm2", "hdld2", "hbi2"); |
| 6625 | 1138 %! unwind_protect_cleanup |
| 1139 %! unlink (nm); | |
| 1140 %! end_unwind_protect | |
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1141 %! endfor |
| 6625 | 1142 |
| 1143 */ | |
| 4988 | 1144 |
| 4343 | 1145 void |
| 1146 octave_fcn_handle::print (std::ostream& os, bool pr_as_read_syntax) const | |
| 1147 { | |
| 1148 print_raw (os, pr_as_read_syntax); | |
| 1149 newline (os); | |
| 1150 } | |
| 1151 | |
| 1152 void | |
| 1153 octave_fcn_handle::print_raw (std::ostream& os, bool pr_as_read_syntax) const | |
| 1154 { | |
| 4980 | 1155 bool printed = false; |
| 1156 | |
| 1157 if (nm == "@<anonymous>") | |
| 1158 { | |
| 1159 tree_print_code tpc (os); | |
| 1160 | |
| 4989 | 1161 // FCN is const because this member function is, so we can't |
| 4980 | 1162 // use it to call user_function_value, so we make a copy first. |
| 1163 | |
| 1164 octave_value ftmp = fcn; | |
| 1165 | |
| 1166 octave_user_function *f = ftmp.user_function_value (); | |
| 1167 | |
| 1168 if (f) | |
| 1169 { | |
| 1170 tree_parameter_list *p = f->parameter_list (); | |
| 1171 | |
| 1172 os << "@("; | |
| 1173 | |
| 1174 if (p) | |
| 1175 p->accept (tpc); | |
| 1176 | |
| 1177 os << ") "; | |
| 1178 | |
| 1179 tree_statement_list *b = f->body (); | |
| 1180 | |
| 1181 if (b) | |
| 1182 { | |
| 1183 assert (b->length () == 1); | |
| 1184 | |
| 1185 tree_statement *s = b->front (); | |
| 1186 | |
| 1187 if (s) | |
| 1188 { | |
| 1189 if (s->is_expression ()) | |
| 1190 { | |
| 1191 tree_expression *e = s->expression (); | |
| 1192 | |
| 1193 if (e) | |
| 6657 | 1194 e->accept (tpc); |
| 4980 | 1195 } |
| 1196 else | |
| 1197 { | |
| 1198 tree_command *c = s->command (); | |
| 1199 | |
| 1200 tpc.suspend_newline (); | |
| 1201 c->accept (tpc); | |
| 1202 tpc.resume_newline (); | |
| 1203 } | |
| 1204 } | |
| 1205 } | |
| 1206 | |
| 1207 printed = true; | |
| 1208 } | |
| 1209 } | |
| 1210 | |
| 1211 if (! printed) | |
| 1212 octave_print_internal (os, nm, pr_as_read_syntax, | |
| 1213 current_print_indent_level ()); | |
| 4343 | 1214 } |
| 1215 | |
| 1216 octave_value | |
| 1217 make_fcn_handle (const std::string& nm) | |
| 1218 { | |
| 1219 octave_value retval; | |
| 1220 | |
| 7336 | 1221 octave_value f = symbol_table::find_function (nm); |
| 6481 | 1222 |
| 7336 | 1223 if (f.is_defined ()) |
| 4930 | 1224 retval = octave_value (new octave_fcn_handle (f, nm)); |
| 4343 | 1225 else |
| 1226 error ("error creating function handle \"@%s\"", nm.c_str ()); | |
| 1227 | |
| 1228 return retval; | |
| 1229 } | |
| 1230 | |
| 4933 | 1231 DEFUN (functions, args, , |
| 4343 | 1232 "-*- texinfo -*-\n\ |
| 4933 | 1233 @deftypefn {Built-in Function} {} functions (@var{fcn_handle})\n\ |
| 1234 Return a struct containing information about the function handle\n\ | |
| 1235 @var{fcn_handle}.\n\ | |
| 1236 @end deftypefn") | |
| 4343 | 1237 { |
| 1238 octave_value retval; | |
| 1239 | |
| 4933 | 1240 if (args.length () == 1) |
| 4343 | 1241 { |
| 4933 | 1242 octave_fcn_handle *fh = args(0).fcn_handle_value (); |
| 4343 | 1243 |
| 1244 if (! error_state) | |
| 1245 { | |
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1246 octave_function *fcn = fh ? fh->function_value () : 0; |
| 4343 | 1247 |
| 4933 | 1248 if (fcn) |
| 4930 | 1249 { |
| 4933 | 1250 Octave_map m; |
| 4649 | 1251 |
| 4933 | 1252 std::string fh_nm = fh->fcn_name (); |
| 1253 | |
| 6625 | 1254 if (fh_nm == "@<anonymous>") |
| 1255 { | |
| 1256 std::ostringstream buf; | |
| 1257 fh->print_raw (buf); | |
| 1258 m.assign ("function", buf.str ()); | |
| 1259 | |
| 1260 m.assign ("type", "anonymous"); | |
| 1261 } | |
| 1262 else | |
| 1263 { | |
| 1264 m.assign ("function", fh_nm); | |
| 4343 | 1265 |
| 6625 | 1266 if (fcn->is_nested_function ()) |
| 1267 { | |
| 1268 m.assign ("type", "subfunction"); | |
| 1269 Cell parentage (dim_vector (1, 2)); | |
| 1270 parentage.elem(0) = fh_nm; | |
| 1271 parentage.elem(1) = fcn->parent_fcn_name (); | |
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1272 m.assign ("parentage", octave_value (parentage)); |
| 6625 | 1273 } |
| 1274 else | |
| 1275 m.assign ("type", "simple"); | |
| 1276 } | |
| 4933 | 1277 |
| 1278 std::string nm = fcn->fcn_file_name (); | |
| 4343 | 1279 |
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1280 if (fh_nm == "@<anonymous>") |
| 4935 | 1281 { |
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1282 m.assign ("file", nm); |
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1283 |
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1284 octave_user_function *fu = fh->user_function_value (); |
| 6625 | 1285 |
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1286 std::list<symbol_table::symbol_record> vars |
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1287 = symbol_table::all_variables (fu->scope (), 0); |
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1288 |
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1289 size_t varlen = vars.size (); |
| 6625 | 1290 |
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1291 if (varlen > 0) |
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1292 { |
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1293 Octave_map ws; |
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1294 for (std::list<symbol_table::symbol_record>::const_iterator p = vars.begin (); |
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1295 p != vars.end (); p++) |
| 6625 | 1296 { |
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1297 ws.assign (p->name (), p->varval (0)); |
| 6625 | 1298 } |
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1299 |
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1300 m.assign ("workspace", ws); |
| 6625 | 1301 } |
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1302 } |
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1303 else if (fcn->is_user_function () || fcn->is_user_script ()) |
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1304 { |
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1305 octave_function *fu = fh->function_value (); |
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1306 m.assign ("file", fu->fcn_file_name ()); |
| 4935 | 1307 } |
| 4343 | 1308 else |
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1309 m.assign ("file", ""); |
| 4933 | 1310 |
| 1311 retval = m; | |
| 4343 | 1312 } |
| 1313 else | |
| 4933 | 1314 error ("functions: invalid function handle object"); |
| 4343 | 1315 } |
| 1316 else | |
| 4933 | 1317 error ("functions: argument must be a function handle object"); |
| 4343 | 1318 } |
| 1319 else | |
| 5823 | 1320 print_usage (); |
| 4343 | 1321 |
| 1322 return retval; | |
| 1323 } | |
| 1324 | |
| 4933 | 1325 DEFUN (func2str, args, , |
| 4343 | 1326 "-*- texinfo -*-\n\ |
| 4933 | 1327 @deftypefn {Built-in Function} {} func2str (@var{fcn_handle})\n\ |
| 1328 Return a string containing the name of the function referenced by\n\ | |
| 1329 the function handle @var{fcn_handle}.\n\ | |
| 1330 @end deftypefn") | |
| 4343 | 1331 { |
| 1332 octave_value retval; | |
| 1333 | |
| 4933 | 1334 if (args.length () == 1) |
| 4930 | 1335 { |
| 4933 | 1336 octave_fcn_handle *fh = args(0).fcn_handle_value (); |
| 4930 | 1337 |
| 4933 | 1338 if (! error_state && fh) |
| 1339 { | |
| 1340 std::string fh_nm = fh->fcn_name (); | |
| 6416 | 1341 |
| 1342 if (fh_nm == "@<anonymous>") | |
| 1343 { | |
| 1344 std::ostringstream buf; | |
| 1345 | |
| 1346 fh->print_raw (buf); | |
| 1347 | |
| 1348 retval = buf.str (); | |
| 1349 } | |
| 1350 else | |
| 1351 retval = fh_nm; | |
| 4933 | 1352 } |
| 4343 | 1353 else |
| 4933 | 1354 error ("func2str: expecting valid function handle as first argument"); |
| 4343 | 1355 } |
| 1356 else | |
| 5823 | 1357 print_usage (); |
| 4343 | 1358 |
| 1359 return retval; | |
| 1360 } | |
| 1361 | |
| 4933 | 1362 DEFUN (str2func, args, , |
| 4343 | 1363 "-*- texinfo -*-\n\ |
| 4933 | 1364 @deftypefn {Built-in Function} {} str2func (@var{fcn_name})\n\ |
| 1365 Return a function handle constructed from the string @var{fcn_name}.\n\ | |
| 1366 @end deftypefn") | |
| 4343 | 1367 { |
| 1368 octave_value retval; | |
| 1369 | |
| 4933 | 1370 if (args.length () == 1) |
| 4343 | 1371 { |
| 4933 | 1372 std::string nm = args(0).string_value (); |
| 4343 | 1373 |
| 4933 | 1374 if (! error_state) |
| 1375 retval = make_fcn_handle (nm); | |
| 4343 | 1376 else |
| 4933 | 1377 error ("str2func: expecting string as first argument"); |
| 4343 | 1378 } |
| 1379 else | |
| 5823 | 1380 print_usage (); |
| 4343 | 1381 |
| 1382 return retval; | |
| 1383 } | |
| 1384 | |
| 1385 /* | |
|
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|
1386 %!function y = testrecursionfunc (f, x, n) |
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1387 %! if (nargin < 3) |
|
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1388 %! n = 0; |
|
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1389 %! endif |
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1390 %! if (n > 2) |
|
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1391 %! y = f (x); |
|
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1392 %! else |
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1393 %! n++; |
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1394 %! y = testrecursionfunc (@(x) f(2*x), x, n); |
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1395 %! endif |
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1396 %!test |
|
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1397 %! assert (testrecursionfunc (@(x) x, 1), 8); |
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1398 */ |
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1399 |
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1400 /* |
| 4343 | 1401 ;;; Local Variables: *** |
| 1402 ;;; mode: C++ *** | |
| 1403 ;;; End: *** | |
| 1404 */ |