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| 1 /* ----------------------------------------------------------------------------- |
| 2 * See the LICENSE file for information on copyright, usage and redistribution |
| 3 * of SWIG, and the README file for authors - http://www.swig.org/release.html. |
| 4 * |
| 5 * director.swg |
| 6 * |
| 7 * This file contains support for director classes that proxy |
| 8 * method calls from C++ to Python extensions. |
| 9 * -----------------------------------------------------------------------------
*/ |
| 10 |
| 11 #ifndef SWIG_DIRECTOR_PYTHON_HEADER_ |
| 12 #define SWIG_DIRECTOR_PYTHON_HEADER_ |
| 13 |
| 14 #ifdef __cplusplus |
| 15 |
| 16 #include <string> |
| 17 #include <iostream> |
| 18 #include <exception> |
| 19 #include <vector> |
| 20 #include <map> |
| 21 |
| 22 |
| 23 /* |
| 24 Use -DSWIG_PYTHON_DIRECTOR_NO_VTABLE if you don't want to generate a 'virtual |
| 25 table', and avoid multiple GetAttr calls to retrieve the python |
| 26 methods. |
| 27 */ |
| 28 |
| 29 #ifndef SWIG_PYTHON_DIRECTOR_NO_VTABLE |
| 30 #ifndef SWIG_PYTHON_DIRECTOR_VTABLE |
| 31 #define SWIG_PYTHON_DIRECTOR_VTABLE |
| 32 #endif |
| 33 #endif |
| 34 |
| 35 |
| 36 |
| 37 /* |
| 38 Use -DSWIG_DIRECTOR_NO_UEH if you prefer to avoid the use of the |
| 39 Undefined Exception Handler provided by swift |
| 40 */ |
| 41 #ifndef SWIG_DIRECTOR_NO_UEH |
| 42 #ifndef SWIG_DIRECTOR_UEH |
| 43 #define SWIG_DIRECTOR_UEH |
| 44 #endif |
| 45 #endif |
| 46 |
| 47 |
| 48 /* |
| 49 Use -DSWIG_DIRECTOR_STATIC if you prefer to avoid the use of the |
| 50 'Swig' namespace. This could be useful for multi-modules projects. |
| 51 */ |
| 52 #ifdef SWIG_DIRECTOR_STATIC |
| 53 /* Force anonymous (static) namespace */ |
| 54 #define Swig |
| 55 #endif |
| 56 |
| 57 |
| 58 /* |
| 59 Use -DSWIG_DIRECTOR_NORTTI if you prefer to avoid the use of the |
| 60 native C++ RTTI and dynamic_cast<>. But be aware that directors |
| 61 could stop working when using this option. |
| 62 */ |
| 63 #ifdef SWIG_DIRECTOR_NORTTI |
| 64 /* |
| 65 When we don't use the native C++ RTTI, we implement a minimal one |
| 66 only for Directors. |
| 67 */ |
| 68 # ifndef SWIG_DIRECTOR_RTDIR |
| 69 # define SWIG_DIRECTOR_RTDIR |
| 70 #include <map> |
| 71 |
| 72 namespace Swig { |
| 73 class Director; |
| 74 SWIGINTERN std::map<void*,Director*>& get_rtdir_map() { |
| 75 static std::map<void*,Director*> rtdir_map; |
| 76 return rtdir_map; |
| 77 } |
| 78 |
| 79 SWIGINTERNINLINE void set_rtdir(void *vptr, Director *rtdir) { |
| 80 get_rtdir_map()[vptr] = rtdir; |
| 81 } |
| 82 |
| 83 SWIGINTERNINLINE Director *get_rtdir(void *vptr) { |
| 84 std::map<void*,Director*>::const_iterator pos = get_rtdir_map().find(vptr); |
| 85 Director *rtdir = (pos != get_rtdir_map().end()) ? pos->second : 0; |
| 86 return rtdir; |
| 87 } |
| 88 } |
| 89 # endif /* SWIG_DIRECTOR_RTDIR */ |
| 90 |
| 91 # define SWIG_DIRECTOR_CAST(Arg) Swig::get_rtdir(static_cast<void*>(Arg)) |
| 92 # define SWIG_DIRECTOR_RGTR(Arg1, Arg2) Swig::set_rtdir(static_cast<void*>(Arg1)
, Arg2) |
| 93 |
| 94 #else |
| 95 |
| 96 # define SWIG_DIRECTOR_CAST(Arg) dynamic_cast<Swig::Director*>(Arg) |
| 97 # define SWIG_DIRECTOR_RGTR(Arg1, Arg2) |
| 98 |
| 99 #endif /* SWIG_DIRECTOR_NORTTI */ |
| 100 |
| 101 extern "C" { |
| 102 struct swig_type_info; |
| 103 } |
| 104 |
| 105 namespace Swig { |
| 106 |
| 107 /* memory handler */ |
| 108 struct GCItem |
| 109 { |
| 110 virtual ~GCItem() {} |
| 111 |
| 112 virtual int get_own() const |
| 113 { |
| 114 return 0; |
| 115 } |
| 116 }; |
| 117 |
| 118 struct GCItem_var |
| 119 { |
| 120 GCItem_var(GCItem *item = 0) : _item(item) |
| 121 { |
| 122 } |
| 123 |
| 124 GCItem_var& operator=(GCItem *item) |
| 125 { |
| 126 GCItem *tmp = _item; |
| 127 _item = item; |
| 128 delete tmp; |
| 129 return *this; |
| 130 } |
| 131 |
| 132 ~GCItem_var() |
| 133 { |
| 134 delete _item; |
| 135 } |
| 136 |
| 137 GCItem * operator->() const |
| 138 { |
| 139 return _item; |
| 140 } |
| 141 |
| 142 private: |
| 143 GCItem *_item; |
| 144 }; |
| 145 |
| 146 struct GCItem_Object : GCItem |
| 147 { |
| 148 GCItem_Object(int own) : _own(own) |
| 149 { |
| 150 } |
| 151 |
| 152 virtual ~GCItem_Object() |
| 153 { |
| 154 } |
| 155 |
| 156 int get_own() const |
| 157 { |
| 158 return _own; |
| 159 } |
| 160 |
| 161 private: |
| 162 int _own; |
| 163 }; |
| 164 |
| 165 template <typename Type> |
| 166 struct GCItem_T : GCItem |
| 167 { |
| 168 GCItem_T(Type *ptr) : _ptr(ptr) |
| 169 { |
| 170 } |
| 171 |
| 172 virtual ~GCItem_T() |
| 173 { |
| 174 delete _ptr; |
| 175 } |
| 176 |
| 177 private: |
| 178 Type *_ptr; |
| 179 }; |
| 180 |
| 181 template <typename Type> |
| 182 struct GCArray_T : GCItem |
| 183 { |
| 184 GCArray_T(Type *ptr) : _ptr(ptr) |
| 185 { |
| 186 } |
| 187 |
| 188 virtual ~GCArray_T() |
| 189 { |
| 190 delete[] _ptr; |
| 191 } |
| 192 |
| 193 private: |
| 194 Type *_ptr; |
| 195 }; |
| 196 |
| 197 /* base class for director exceptions */ |
| 198 class DirectorException { |
| 199 protected: |
| 200 std::string swig_msg; |
| 201 public: |
| 202 DirectorException(PyObject *error, const char* hdr ="", const char* msg ="")
|
| 203 : swig_msg(hdr) |
| 204 { |
| 205 SWIG_PYTHON_THREAD_BEGIN_BLOCK; |
| 206 if (strlen(msg)) { |
| 207 swig_msg += " "; |
| 208 swig_msg += msg; |
| 209 } |
| 210 if (!PyErr_Occurred()) { |
| 211 PyErr_SetString(error, getMessage()); |
| 212 } |
| 213 SWIG_PYTHON_THREAD_END_BLOCK; |
| 214 } |
| 215 |
| 216 const char *getMessage() const |
| 217 { |
| 218 return swig_msg.c_str(); |
| 219 } |
| 220 |
| 221 static void raise(PyObject *error, const char *msg) |
| 222 { |
| 223 throw DirectorException(error, msg); |
| 224 } |
| 225 |
| 226 static void raise(const char *msg) |
| 227 { |
| 228 raise(PyExc_RuntimeError, msg); |
| 229 } |
| 230 }; |
| 231 |
| 232 /* unknown exception handler */ |
| 233 class UnknownExceptionHandler |
| 234 { |
| 235 #ifdef SWIG_DIRECTOR_UEH |
| 236 static void handler() { |
| 237 try { |
| 238 throw; |
| 239 } catch (DirectorException& e) { |
| 240 std::cerr << "Swig Director exception caught:" << std::endl |
| 241 << e.getMessage() << std::endl; |
| 242 } catch (std::exception& e) { |
| 243 std::cerr << "std::exception caught: "<< e.what() << std::endl; |
| 244 } catch (...) { |
| 245 std::cerr << "Unknown exception caught." << std::endl; |
| 246 } |
| 247 |
| 248 std::cerr << std::endl |
| 249 << "Python interpreter traceback:" << std::endl; |
| 250 PyErr_Print(); |
| 251 std::cerr << std::endl; |
| 252 |
| 253 std::cerr << "This exception was caught by the SWIG unexpected exception h
andler." << std::endl |
| 254 << "Try using %feature(\"director:except\") to avoid reaching th
is point." << std::endl |
| 255 << std::endl |
| 256 << "Exception is being re-thrown, program will like abort/termin
ate." << std::endl; |
| 257 throw; |
| 258 } |
| 259 |
| 260 public: |
| 261 |
| 262 std::unexpected_handler old; |
| 263 UnknownExceptionHandler(std::unexpected_handler nh = handler) |
| 264 { |
| 265 old = std::set_unexpected(nh); |
| 266 } |
| 267 |
| 268 ~UnknownExceptionHandler() |
| 269 { |
| 270 std::set_unexpected(old); |
| 271 } |
| 272 #endif |
| 273 }; |
| 274 |
| 275 /* type mismatch in the return value from a python method call */ |
| 276 class DirectorTypeMismatchException : public Swig::DirectorException { |
| 277 public: |
| 278 DirectorTypeMismatchException(PyObject *error, const char* msg="") |
| 279 : Swig::DirectorException(error, "Swig director type mismatch", msg) |
| 280 { |
| 281 } |
| 282 |
| 283 DirectorTypeMismatchException(const char* msg="") |
| 284 : Swig::DirectorException(PyExc_TypeError, "Swig director type mismatch",
msg) |
| 285 { |
| 286 } |
| 287 |
| 288 static void raise(PyObject *error, const char *msg) |
| 289 { |
| 290 throw DirectorTypeMismatchException(error, msg); |
| 291 } |
| 292 |
| 293 static void raise(const char *msg) |
| 294 { |
| 295 throw DirectorTypeMismatchException(msg); |
| 296 } |
| 297 }; |
| 298 |
| 299 /* any python exception that occurs during a director method call */ |
| 300 class DirectorMethodException : public Swig::DirectorException { |
| 301 public: |
| 302 DirectorMethodException(const char* msg = "") |
| 303 : DirectorException(PyExc_RuntimeError, "Swig director method error.", msg
) |
| 304 { |
| 305 } |
| 306 |
| 307 static void raise(const char *msg) |
| 308 { |
| 309 throw DirectorMethodException(msg); |
| 310 } |
| 311 }; |
| 312 |
| 313 /* attempt to call a pure virtual method via a director method */ |
| 314 class DirectorPureVirtualException : public Swig::DirectorException |
| 315 { |
| 316 public: |
| 317 DirectorPureVirtualException(const char* msg = "") |
| 318 : DirectorException(PyExc_RuntimeError, "Swig director pure virtual method
called", msg) |
| 319 { |
| 320 } |
| 321 |
| 322 static void raise(const char *msg) |
| 323 { |
| 324 throw DirectorPureVirtualException(msg); |
| 325 } |
| 326 }; |
| 327 |
| 328 |
| 329 #if defined(SWIG_PYTHON_THREADS) |
| 330 /* __THREAD__ is the old macro to activate some thread support */ |
| 331 # if !defined(__THREAD__) |
| 332 # define __THREAD__ 1 |
| 333 # endif |
| 334 #endif |
| 335 |
| 336 #ifdef __THREAD__ |
| 337 # include "pythread.h" |
| 338 class Guard |
| 339 { |
| 340 PyThread_type_lock & mutex_; |
| 341 |
| 342 public: |
| 343 Guard(PyThread_type_lock & mutex) : mutex_(mutex) |
| 344 { |
| 345 PyThread_acquire_lock(mutex_, WAIT_LOCK); |
| 346 } |
| 347 |
| 348 ~Guard() |
| 349 { |
| 350 PyThread_release_lock(mutex_); |
| 351 } |
| 352 }; |
| 353 # define SWIG_GUARD(mutex) Guard _guard(mutex) |
| 354 #else |
| 355 # define SWIG_GUARD(mutex) |
| 356 #endif |
| 357 |
| 358 /* director base class */ |
| 359 class Director { |
| 360 private: |
| 361 /* pointer to the wrapped python object */ |
| 362 PyObject* swig_self; |
| 363 /* flag indicating whether the object is owned by python or c++ */ |
| 364 mutable bool swig_disown_flag; |
| 365 |
| 366 /* decrement the reference count of the wrapped python object */ |
| 367 void swig_decref() const { |
| 368 if (swig_disown_flag) { |
| 369 SWIG_PYTHON_THREAD_BEGIN_BLOCK; |
| 370 Py_DECREF(swig_self); |
| 371 SWIG_PYTHON_THREAD_END_BLOCK; |
| 372 } |
| 373 } |
| 374 |
| 375 public: |
| 376 /* wrap a python object, optionally taking ownership */ |
| 377 Director(PyObject* self) : swig_self(self), swig_disown_flag(false) { |
| 378 swig_incref(); |
| 379 } |
| 380 |
| 381 |
| 382 /* discard our reference at destruction */ |
| 383 virtual ~Director() { |
| 384 swig_decref(); |
| 385 } |
| 386 |
| 387 |
| 388 /* return a pointer to the wrapped python object */ |
| 389 PyObject *swig_get_self() const { |
| 390 return swig_self; |
| 391 } |
| 392 |
| 393 /* acquire ownership of the wrapped python object (the sense of "disown" |
| 394 * is from python) */ |
| 395 void swig_disown() const { |
| 396 if (!swig_disown_flag) { |
| 397 swig_disown_flag=true; |
| 398 swig_incref(); |
| 399 } |
| 400 } |
| 401 |
| 402 /* increase the reference count of the wrapped python object */ |
| 403 void swig_incref() const { |
| 404 if (swig_disown_flag) { |
| 405 Py_INCREF(swig_self); |
| 406 } |
| 407 } |
| 408 |
| 409 /* methods to implement pseudo protected director members */ |
| 410 virtual bool swig_get_inner(const char* /* name */) const { |
| 411 return true; |
| 412 } |
| 413 |
| 414 virtual void swig_set_inner(const char* /* name */, bool /* val */) const { |
| 415 } |
| 416 |
| 417 /* ownership management */ |
| 418 private: |
| 419 typedef std::map<void*, GCItem_var> ownership_map; |
| 420 mutable ownership_map owner; |
| 421 #ifdef __THREAD__ |
| 422 static PyThread_type_lock swig_mutex_own; |
| 423 #endif |
| 424 |
| 425 public: |
| 426 template <typename Type> |
| 427 void swig_acquire_ownership_array(Type *vptr) const |
| 428 { |
| 429 if (vptr) { |
| 430 SWIG_GUARD(swig_mutex_own); |
| 431 owner[vptr] = new GCArray_T<Type>(vptr); |
| 432 } |
| 433 } |
| 434 |
| 435 template <typename Type> |
| 436 void swig_acquire_ownership(Type *vptr) const |
| 437 { |
| 438 if (vptr) { |
| 439 SWIG_GUARD(swig_mutex_own); |
| 440 owner[vptr] = new GCItem_T<Type>(vptr); |
| 441 } |
| 442 } |
| 443 |
| 444 void swig_acquire_ownership_obj(void *vptr, int own) const |
| 445 { |
| 446 if (vptr && own) { |
| 447 SWIG_GUARD(swig_mutex_own); |
| 448 owner[vptr] = new GCItem_Object(own); |
| 449 } |
| 450 } |
| 451 |
| 452 int swig_release_ownership(void *vptr) const |
| 453 { |
| 454 int own = 0; |
| 455 if (vptr) { |
| 456 SWIG_GUARD(swig_mutex_own); |
| 457 ownership_map::iterator iter = owner.find(vptr); |
| 458 if (iter != owner.end()) { |
| 459 own = iter->second->get_own(); |
| 460 owner.erase(iter); |
| 461 } |
| 462 } |
| 463 return own; |
| 464 } |
| 465 }; |
| 466 |
| 467 #ifdef __THREAD__ |
| 468 PyThread_type_lock Director::swig_mutex_own = PyThread_allocate_lock(); |
| 469 #endif |
| 470 } |
| 471 |
| 472 #endif /* __cplusplus */ |
| 473 |
| 474 |
| 475 #endif |
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