/trunk/Lib/ocaml/director.swg
Unknown | 102 lines | 87 code | 15 blank | 0 comment | 0 complexity | 054b955954a881738436fa27052b47d7 MD5 | raw file
Possible License(s): LGPL-2.1, Cube, GPL-3.0, 0BSD, GPL-2.0
- /* -----------------------------------------------------------------------------
- * director.swg
- *
- * This file contains support for director classes that proxy
- * method calls from C++ to Ocaml extensions.
- *
- * ----------------------------------------------------------------------------- */
- #ifdef __cplusplus
- #include <string>
- # define SWIG_DIRECTOR_CAST(ARG) dynamic_cast<Swig::Director *>(ARG)
- namespace Swig {
- /* base class for director exceptions */
- class DirectorException {
- protected:
- std::string swig_msg;
- public:
- DirectorException(const char* msg="") {
- }
- const char *getMessage() const {
- return swig_msg.c_str();
- }
- virtual ~DirectorException() {}
- };
- /* type mismatch in the return value from a python method call */
- class DirectorTypeMismatchException : public Swig::DirectorException {
- public:
- DirectorTypeMismatchException(const char* msg="") {
- }
- };
- /* any python exception that occurs during a director method call */
- class DirectorMethodException : public Swig::DirectorException {};
- /* attempt to call a pure virtual method via a director method */
- class DirectorPureVirtualException : public Swig::DirectorException {
- public:
- DirectorPureVirtualException(const char* msg="") {
- }
- static void raise(const char *msg) {
- throw DirectorPureVirtualException(msg);
- }
- };
- /* simple thread abstraction for pthreads on win32 */
- #ifdef __THREAD__
- #define __PTHREAD__
- #if defined(_WIN32) || defined(__WIN32__)
- #define pthread_mutex_lock EnterCriticalSection
- #define pthread_mutex_unlock LeaveCriticalSection
- #define pthread_mutex_t CRITICAL_SECTION
- #define MUTEX_INIT(var) CRITICAL_SECTION var
- #else
- #include <pthread.h>
- #define MUTEX_INIT(var) pthread_mutex_t var = PTHREAD_MUTEX_INITIALIZER
- #endif
- #endif
- /* director base class */
- class Director {
- private:
- /* pointer to the wrapped ocaml object */
- CAML_VALUE swig_self;
- /* flag indicating whether the object is owned by ocaml or c++ */
- mutable bool swig_disown_flag;
- public:
- /* wrap a ocaml object, optionally taking ownership */
- Director(CAML_VALUE self) : swig_self(self), swig_disown_flag(false) {
- register_global_root(&swig_self);
- }
- /* discard our reference at destruction */
- virtual ~Director() {
- remove_global_root(&swig_self);
- swig_disown();
- // Disown is safe here because we're just divorcing a reference that
- // points to us.
- }
- /* return a pointer to the wrapped ocaml object */
- CAML_VALUE swig_get_self() const {
- return swig_self;
- }
- /* acquire ownership of the wrapped ocaml object (the sense of "disown"
- * is from ocaml) */
- void swig_disown() const {
- if (!swig_disown_flag) {
- swig_disown_flag=true;
- callback(*caml_named_value("caml_obj_disown"),swig_self);
- }
- }
- };
- }
- #endif /* __cplusplus */