ref: d4bc9052beb3305d64a353a16641740380eb87af
dir: /sys/src/cmd/python/Include/cobject.h/
/* C objects to be exported from one extension module to another. C objects are used for communication between extension modules. They provide a way for an extension module to export a C interface to other extension modules, so that extension modules can use the Python import mechanism to link to one another. */ #ifndef Py_COBJECT_H #define Py_COBJECT_H #ifdef __cplusplus extern "C" { #endif PyAPI_DATA(PyTypeObject) PyCObject_Type; #define PyCObject_Check(op) ((op)->ob_type == &PyCObject_Type) /* Create a PyCObject from a pointer to a C object and an optional destructor function. If the second argument is non-null, then it will be called with the first argument if and when the PyCObject is destroyed. */ PyAPI_FUNC(PyObject *) PyCObject_FromVoidPtr( void *cobj, void (*destruct)(void*)); /* Create a PyCObject from a pointer to a C object, a description object, and an optional destructor function. If the third argument is non-null, then it will be called with the first and second arguments if and when the PyCObject is destroyed. */ PyAPI_FUNC(PyObject *) PyCObject_FromVoidPtrAndDesc( void *cobj, void *desc, void (*destruct)(void*,void*)); /* Retrieve a pointer to a C object from a PyCObject. */ PyAPI_FUNC(void *) PyCObject_AsVoidPtr(PyObject *); /* Retrieve a pointer to a description object from a PyCObject. */ PyAPI_FUNC(void *) PyCObject_GetDesc(PyObject *); /* Import a pointer to a C object from a module using a PyCObject. */ PyAPI_FUNC(void *) PyCObject_Import(char *module_name, char *cobject_name); /* Modify a C object. Fails (==0) if object has a destructor. */ PyAPI_FUNC(int) PyCObject_SetVoidPtr(PyObject *self, void *cobj); #ifdef __cplusplus } #endif #endif /* !Py_COBJECT_H */