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/* vim:set noet ts=8 sw=8 : */
/* Greenlet object interface */
#ifndef Py_GREENLETOBJECT_H
#define Py_GREENLETOBJECT_H
#ifdef __cplusplus
extern "C" {
#endif
#include <Python.h>
#define GREENLET_VERSION "0.3.1"
typedef struct _greenlet {
PyObject_HEAD
char* stack_start;
char* stack_stop;
char* stack_copy;
long stack_saved;
struct _greenlet* stack_prev;
struct _greenlet* parent;
PyObject* run_info;
struct _frame* top_frame;
int recursion_depth;
PyObject* weakreflist;
} PyGreenlet;
#define PyGreenlet_Check(op) PyObject_TypeCheck(op, &PyGreenlet_Type)
#define PyGreenlet_STARTED(op) (((PyGreenlet*)(op))->stack_stop != NULL)
#define PyGreenlet_ACTIVE(op) (((PyGreenlet*)(op))->stack_start != NULL)
#define PyGreenlet_GET_PARENT(op) (((PyGreenlet*)(op))->parent)
/* C API functions */
/* Total number of symbols that are exported */
#define PyGreenlet_API_pointers 8
#define PyGreenlet_Type_NUM 0
#define PyExc_GreenletError_NUM 1
#define PyExc_GreenletExit_NUM 2
#define PyGreenlet_New_NUM 3
#define PyGreenlet_GetCurrent_NUM 4
#define PyGreenlet_Throw_NUM 5
#define PyGreenlet_Switch_NUM 6
#define PyGreenlet_SetParent_NUM 7
#ifndef GREENLET_MODULE
/* This section is used by modules that uses the greenlet C API */
static void **_PyGreenlet_API = NULL;
#define PyGreenlet_Type (*(PyTypeObject *) _PyGreenlet_API[PyGreenlet_Type_NUM])
#define PyExc_GreenletError \
((PyObject *) _PyGreenlet_API[PyExc_GreenletError_NUM])
#define PyExc_GreenletExit \
((PyObject *) _PyGreenlet_API[PyExc_GreenletExit_NUM])
/*
* PyGreenlet_New(PyObject *args)
*
* greenlet.greenlet(run, parent=None)
*/
#define PyGreenlet_New \
(* (PyGreenlet * (*)(PyObject *run, PyGreenlet *parent)) \
_PyGreenlet_API[PyGreenlet_New_NUM])
/*
* PyGreenlet_GetCurrent(void)
*
* greenlet.getcurrent()
*/
#define PyGreenlet_GetCurrent \
(* (PyGreenlet * (*)(void)) _PyGreenlet_API[PyGreenlet_GetCurrent_NUM])
/*
* PyGreenlet_Throw(
* PyGreenlet *greenlet,
* PyObject *typ,
* PyObject *val,
* PyObject *tb)
*
* g.throw(...)
*/
#define PyGreenlet_Throw \
(* (PyObject * (*) \
(PyGreenlet *self, PyObject *typ, PyObject *val, PyObject *tb)) \
_PyGreenlet_API[PyGreenlet_Throw_NUM])
/*
* PyGreenlet_Switch(PyGreenlet *greenlet, PyObject *args)
*
* g.switch(*args, **kwargs)
*/
#define PyGreenlet_Switch \
(* (PyObject * (*)(PyGreenlet *greenlet, PyObject *args, PyObject *kwargs)) \
_PyGreenlet_API[PyGreenlet_Switch_NUM])
/*
* PyGreenlet_SetParent(PyObject *greenlet, PyObject *new_parent)
*
* g.parent = new_parent
*/
#define PyGreenlet_SetParent \
(* (PyObject * (*)(PyGreenlet *greenlet, PyGreenlet *nparent)) \
_PyGreenlet_API[PyGreenlet_SetParent_NUM])
/* Macro that imports greenlet and initializes C API */
#define PyGreenlet_Import() \
{ \
PyObject *module = PyImport_ImportModule("greenlet"); \
if (module != NULL) { \
PyObject *c_api_object = PyObject_GetAttrString( \
module, "_C_API"); \
if (c_api_object != NULL && PyCObject_Check(c_api_object)) { \
_PyGreenlet_API = \
(void **) PyCObject_AsVoidPtr(c_api_object); \
Py_DECREF(c_api_object); \
} \
Py_DECREF(module); \
} \
}
#endif /* GREENLET_MODULE */
#ifdef __cplusplus
}
#endif
#endif /* !Py_GREENLETOBJECT_H */
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