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1 | #ifndef SWIG_DIRECTOR_PYTHON_HEADER_ |
2 | #define SWIG_DIRECTOR_PYTHON_HEADER_ | |
3 | /*********************************************************************** | |
4 | * director_h.swg | |
5 | * | |
6 | * This file contains support for director classes that proxy | |
7 | * method calls from C++ to Python extensions. | |
8 | * | |
9 | * Author : Mark Rose (mrose@stm.lbl.gov) | |
10 | ************************************************************************/ | |
11 | ||
12 | #ifdef __cplusplus | |
13 | ||
14 | #include <string> | |
15 | #include <iostream> | |
16 | #include <exception> | |
17 | ||
18 | ||
19 | /* | |
20 | Use -DSWIG_DIRECTOR_NOUEH if you prefer to avoid the use of the | |
21 | Undefined Exception Handler provided by swift | |
22 | */ | |
23 | #ifndef SWIG_DIRECTOR_NOUEH | |
24 | #ifndef SWIG_DIRECTOR_UEH | |
25 | #define SWIG_DIRECTOR_UEH | |
26 | #endif | |
27 | #endif | |
28 | ||
29 | ||
30 | /* | |
31 | Use -DSWIG_DIRECTOR_STATIC if you prefer to avoid the use of the | |
32 | 'Swig' namespace. This could be usefull for multi-modules projects. | |
33 | */ | |
34 | #ifdef SWIG_DIRECTOR_STATIC | |
35 | /* Force anonymous (static) namespace */ | |
36 | #define Swig | |
37 | #endif | |
38 | ||
39 | ||
40 | /* | |
41 | Use -DSWIG_DIRECTOR_NORTTI if you prefer to avoid the use of the | |
42 | native C++ RTTI and dynamic_cast<>. But be aware that directors | |
43 | could stop working when using this option. | |
44 | */ | |
45 | #ifdef SWIG_DIRECTOR_NORTTI | |
46 | /* | |
47 | When we don't use the native C++ RTTI, we implement a minimal one | |
48 | only for Directors. | |
49 | */ | |
50 | # ifndef SWIG_DIRECTOR_RTDIR | |
51 | # define SWIG_DIRECTOR_RTDIR | |
52 | #include <map> | |
53 | namespace Swig { | |
54 | class Director; | |
55 | SWIGINTERN std::map<void*,Director*>& get_rtdir_map() { | |
56 | static std::map<void*,Director*> rtdir_map; | |
57 | return rtdir_map; | |
58 | } | |
59 | ||
60 | SWIGINTERNINLINE void set_rtdir(void *vptr, Director *rtdir) { | |
61 | get_rtdir_map()[vptr] = rtdir; | |
62 | } | |
63 | ||
64 | SWIGINTERNINLINE Director *get_rtdir(void *vptr) { | |
65 | std::map<void*,Director*>::const_iterator pos = get_rtdir_map().find(vptr); | |
66 | Director *rtdir = (pos != get_rtdir_map().end()) ? pos->second : 0; | |
67 | return rtdir; | |
68 | } | |
69 | } | |
70 | # endif /* SWIG_DIRECTOR_RTDIR */ | |
71 | ||
72 | # define SWIG_DIRECTOR_CAST(Arg) Swig::get_rtdir(static_cast<void*>(Arg)) | |
73 | # define SWIG_DIRECTOR_RGTR(Arg1, Arg2) Swig::set_rtdir(static_cast<void*>(Arg1), Arg2) | |
74 | ||
75 | #else | |
76 | ||
77 | # define SWIG_DIRECTOR_CAST(Arg) dynamic_cast<Swig::Director*>(Arg) | |
78 | # define SWIG_DIRECTOR_RGTR(Arg1, Arg2) | |
79 | ||
80 | #endif /* SWIG_DIRECTOR_NORTTI */ | |
81 | ||
82 | extern "C" { | |
83 | struct swig_type_info; | |
84 | } | |
85 | ||
86 | namespace Swig { | |
87 | ||
88 | /* base class for director exceptions */ | |
89 | class DirectorException { | |
90 | protected: | |
91 | std::string swig_msg; | |
92 | public: | |
93 | DirectorException(const char* hdr ="", const char* msg ="") | |
94 | : swig_msg(hdr) { | |
95 | swig_msg += msg; | |
96 | if (!PyErr_Occurred()) { | |
97 | PyErr_SetString(PyExc_TypeError, getMessage()); | |
98 | } else { | |
99 | SWIG_Python_AddErrMesg(getMessage(), 1); | |
100 | } | |
101 | } | |
102 | ||
103 | const char *getMessage() const { | |
104 | return swig_msg.c_str(); | |
105 | } | |
106 | ||
107 | static void raise(const char* msg = "") | |
108 | { | |
109 | throw DirectorException(msg); | |
110 | } | |
111 | }; | |
112 | ||
113 | class UnknownExceptionHandler | |
114 | { | |
115 | static void handler(); | |
116 | ||
117 | public: | |
118 | ||
119 | #ifdef SWIG_DIRECTOR_UEH | |
120 | std::unexpected_handler old; | |
121 | UnknownExceptionHandler(std::unexpected_handler nh = handler) | |
122 | { | |
123 | old = std::set_unexpected(nh); | |
124 | } | |
125 | ||
126 | ~UnknownExceptionHandler() | |
127 | { | |
128 | std::set_unexpected(old); | |
129 | } | |
130 | #endif | |
131 | }; | |
132 | ||
133 | /* type mismatch in the return value from a python method call */ | |
134 | class DirectorTypeMismatchException : public Swig::DirectorException { | |
135 | public: | |
136 | DirectorTypeMismatchException(const char* msg="") | |
137 | : Swig::DirectorException("Swig director type mismatch: ", msg) { | |
138 | } | |
139 | ||
140 | static void raise(const char* msg = "") | |
141 | { | |
142 | throw DirectorTypeMismatchException(msg); | |
143 | } | |
144 | }; | |
145 | ||
146 | /* any python exception that occurs during a director method call */ | |
147 | class DirectorMethodException : public Swig::DirectorException { | |
148 | public: | |
149 | DirectorMethodException(const char* msg = "") | |
150 | : DirectorException("Swig director python method error: ", msg) | |
151 | { | |
152 | } | |
153 | ||
154 | static void raise(const char* msg = "") | |
155 | { | |
156 | throw DirectorMethodException(msg); | |
157 | } | |
158 | }; | |
159 | ||
160 | /* attempt to call a pure virtual method via a director method */ | |
161 | class DirectorPureVirtualException : public Swig::DirectorException | |
162 | { | |
163 | public: | |
164 | DirectorPureVirtualException(const char* msg = "") | |
165 | : DirectorException("Swig director pure virtal method called: ", msg) | |
166 | { | |
167 | } | |
168 | ||
169 | static void raise(const char* msg = "") | |
170 | { | |
171 | throw DirectorPureVirtualException(msg); | |
172 | } | |
173 | }; | |
174 | ||
175 | ||
176 | /* simple thread abstraction for pthreads on win32 */ | |
177 | #ifdef __THREAD__ | |
178 | #define __PTHREAD__ | |
179 | #if defined(_WIN32) || defined(__WIN32__) | |
180 | #define pthread_mutex_lock EnterCriticalSection | |
181 | #define pthread_mutex_unlock LeaveCriticalSection | |
182 | #define pthread_mutex_t CRITICAL_SECTION | |
183 | #define MUTEX_INIT(var) CRITICAL_SECTION var | |
184 | #else | |
185 | #include <pthread.h> | |
186 | #define MUTEX_INIT(var) pthread_mutex_t var = PTHREAD_MUTEX_INITIALIZER | |
187 | #endif | |
188 | #endif | |
189 | ||
190 | ||
191 | /* director base class */ | |
192 | class Director { | |
193 | private: | |
194 | /* pointer to the wrapped python object */ | |
195 | PyObject* swig_self; | |
196 | /* flag indicating whether the object is owned by python or c++ */ | |
197 | mutable bool swig_disown_flag; | |
198 | /* shared flag for breaking recursive director calls */ | |
199 | static bool swig_up; | |
200 | ||
201 | #ifdef __PTHREAD__ | |
202 | /* locks for sharing the swig_up flag in a threaded environment */ | |
203 | static pthread_mutex_t swig_mutex_up; | |
204 | static bool swig_mutex_active; | |
205 | static pthread_t swig_mutex_thread; | |
206 | #endif | |
207 | ||
208 | /* decrement the reference count of the wrapped python object */ | |
209 | void swig_decref() const { | |
210 | if (swig_disown_flag) { | |
211 | Py_DECREF(swig_self); | |
212 | } | |
213 | } | |
214 | ||
215 | /* reset the swig_up flag once the routing direction has been determined */ | |
216 | #ifdef __PTHREAD__ | |
217 | void swig_clear_up() const { | |
218 | Swig::Director::swig_up = false; | |
219 | Swig::Director::swig_mutex_active = false; | |
220 | pthread_mutex_unlock(&swig_mutex_up); | |
221 | } | |
222 | #else | |
223 | void swig_clear_up() const { | |
224 | Swig::Director::swig_up = false; | |
225 | } | |
226 | #endif | |
227 | ||
228 | public: | |
229 | /* wrap a python object, optionally taking ownership */ | |
230 | Director(PyObject* self) : swig_self(self), swig_disown_flag(false) { | |
231 | swig_incref(); | |
232 | } | |
233 | ||
234 | /* discard our reference at destruction */ | |
235 | virtual ~Director(); | |
236 | ||
237 | /* return a pointer to the wrapped python object */ | |
238 | PyObject *swig_get_self() const { | |
239 | return swig_self; | |
240 | } | |
241 | ||
242 | /* get the swig_up flag to determine if the method call should be routed | |
243 | * to the c++ base class or through the wrapped python object | |
244 | */ | |
245 | #ifdef __PTHREAD__ | |
246 | bool swig_get_up() const { | |
247 | if (Swig::Director::swig_mutex_active) { | |
248 | if (pthread_equal(Swig::Director::swig_mutex_thread, pthread_self())) { | |
249 | bool up = swig_up; | |
250 | swig_clear_up(); | |
251 | return up; | |
252 | } | |
253 | } | |
254 | return 0; | |
255 | } | |
256 | #else | |
257 | bool swig_get_up() const { | |
258 | bool up = swig_up; | |
259 | swig_up = false; | |
260 | return up; | |
261 | } | |
262 | #endif | |
263 | ||
264 | /* set the swig_up flag if the next method call should be directed to | |
265 | * the c++ base class rather than the wrapped python object | |
266 | */ | |
267 | #ifdef __PTHREAD__ | |
268 | void swig_set_up() const { | |
269 | pthread_mutex_lock(&Swig::Director::swig_mutex_up); | |
270 | Swig::Director::swig_mutex_thread = pthread_self(); | |
271 | Swig::Director::swig_mutex_active = true; | |
272 | Swig::Director::swig_up = true; | |
273 | } | |
274 | #else | |
275 | void swig_set_up() const { | |
276 | Swig::Director::swig_up = true; | |
277 | } | |
278 | #endif | |
279 | ||
280 | /* acquire ownership of the wrapped python object (the sense of "disown" | |
281 | * is from python) */ | |
282 | void swig_disown() const { | |
283 | if (!swig_disown_flag) { | |
284 | swig_disown_flag=true; | |
285 | swig_incref(); | |
286 | } | |
287 | } | |
288 | ||
289 | /* increase the reference count of the wrapped python object */ | |
290 | void swig_incref() const { | |
291 | if (swig_disown_flag) { | |
292 | Py_INCREF(swig_self); | |
293 | } | |
294 | } | |
295 | ||
296 | /* methods to implement pseudo protected director members */ | |
297 | virtual bool swig_get_inner(const char* /* name */) const { | |
298 | return true; | |
299 | } | |
300 | ||
301 | virtual void swig_set_inner(const char* /* name */, bool /* val */) const { | |
302 | } | |
303 | }; | |
304 | ||
305 | } | |
306 | ||
307 | #endif /* __cplusplus */ | |
308 | ||
309 | ||
310 | #endif |