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/* -*- indent-tabs-mode: nil; tab-width: 4; -*- */
/* Greenlet object interface */
#ifndef Py_GREENLETOBJECT_H
#define Py_GREENLETOBJECT_H
#include <Python.h>
#ifdef __cplusplus
extern "C" {
#endif
/* This is deprecated and undocumented. It does not change. */
#define GREENLET_VERSION "1.0.0"
#ifndef GREENLET_MODULE
#define state_ptr_t void*
#endif
typedef struct _greenlet {
PyObject_HEAD
char* stack_start;
char* stack_stop;
char* stack_copy;
intptr_t stack_saved;
struct _greenlet* stack_prev;
struct _greenlet* parent;
/* strong reference, set when the greenlet begins to run. */
/* Used to be called run_info */
struct _greenlet* main_greenlet_s;
struct _frame* top_frame; /* weak reference (suspended) or NULL (running) */
int recursion_depth;
PyObject* weakreflist;
#if PY_VERSION_HEX >= 0x030700A3
_PyErr_StackItem* exc_info;
_PyErr_StackItem exc_state;
#else
PyObject* exc_type;
PyObject* exc_value;
PyObject* exc_traceback;
#endif
PyObject* dict;
#if PY_VERSION_HEX >= 0x030700A3
PyObject* context;
#endif
#if PY_VERSION_HEX >= 0x30A00B1
CFrame* cframe;
#endif
// XXX: Adding these fields is a breaker, unless we can
// get rid of the run_info field completely.
// If we can get it down to just one pointer, we could
// re-purpose an existing field.
PyObject* run_callable;
state_ptr_t thread_state;
} PyGreenlet;
#define PyGreenlet_Check(op) PyObject_TypeCheck(op, &PyGreenlet_Type)
#define PyGreenlet_MAIN(op) (((PyGreenlet*)(op))->stack_stop == (char*)-1)
#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 \
(*(int (*)(PyGreenlet * greenlet, PyGreenlet * nparent)) \
_PyGreenlet_API[PyGreenlet_SetParent_NUM])
/* Macro that imports greenlet and initializes C API */
/* NOTE: This has actually moved to ``greenlet._greenlet._C_API``, but we
keep the older definition to be sure older code that might have a copy of
the header still works. */
# define PyGreenlet_Import() \
{ \
_PyGreenlet_API = (void**)PyCapsule_Import("greenlet._C_API", 0); \
}
#endif /* GREENLET_MODULE */
#ifdef __cplusplus
}
#endif
#endif /* !Py_GREENLETOBJECT_H */
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