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158 lines
3.9 KiB
C
158 lines
3.9 KiB
C
/* vim:set noet ts=8 sw=8 : */
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/* Greenlet object interface */
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#ifndef Py_GREENLETOBJECT_H
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#define Py_GREENLETOBJECT_H
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#include <Python.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define GREENLET_VERSION "0.4.15"
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#if PY_VERSION_HEX >= 0x030700A3
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# define GREENLET_USE_EXC_INFO
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#endif
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typedef struct _greenlet {
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PyObject_HEAD
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char* stack_start;
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char* stack_stop;
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char* stack_copy;
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intptr_t stack_saved;
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struct _greenlet* stack_prev;
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struct _greenlet* parent;
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PyObject* run_info;
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struct _frame* top_frame;
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int recursion_depth;
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PyObject* weakreflist;
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#ifdef GREENLET_USE_EXC_INFO
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_PyErr_StackItem* exc_info;
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_PyErr_StackItem exc_state;
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#else
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PyObject* exc_type;
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PyObject* exc_value;
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PyObject* exc_traceback;
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#endif
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PyObject* dict;
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} PyGreenlet;
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#define PyGreenlet_Check(op) PyObject_TypeCheck(op, &PyGreenlet_Type)
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#define PyGreenlet_MAIN(op) (((PyGreenlet*)(op))->stack_stop == (char*) -1)
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#define PyGreenlet_STARTED(op) (((PyGreenlet*)(op))->stack_stop != NULL)
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#define PyGreenlet_ACTIVE(op) (((PyGreenlet*)(op))->stack_start != NULL)
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#define PyGreenlet_GET_PARENT(op) (((PyGreenlet*)(op))->parent)
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#if (PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION >= 7) || (PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION >= 1) || PY_MAJOR_VERSION > 3
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#define GREENLET_USE_PYCAPSULE
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#endif
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/* C API functions */
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/* Total number of symbols that are exported */
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#define PyGreenlet_API_pointers 8
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#define PyGreenlet_Type_NUM 0
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#define PyExc_GreenletError_NUM 1
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#define PyExc_GreenletExit_NUM 2
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#define PyGreenlet_New_NUM 3
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#define PyGreenlet_GetCurrent_NUM 4
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#define PyGreenlet_Throw_NUM 5
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#define PyGreenlet_Switch_NUM 6
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#define PyGreenlet_SetParent_NUM 7
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#ifndef GREENLET_MODULE
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/* This section is used by modules that uses the greenlet C API */
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static void **_PyGreenlet_API = NULL;
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#define PyGreenlet_Type (*(PyTypeObject *) _PyGreenlet_API[PyGreenlet_Type_NUM])
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#define PyExc_GreenletError \
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((PyObject *) _PyGreenlet_API[PyExc_GreenletError_NUM])
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#define PyExc_GreenletExit \
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((PyObject *) _PyGreenlet_API[PyExc_GreenletExit_NUM])
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/*
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* PyGreenlet_New(PyObject *args)
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*
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* greenlet.greenlet(run, parent=None)
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*/
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#define PyGreenlet_New \
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(* (PyGreenlet * (*)(PyObject *run, PyGreenlet *parent)) \
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_PyGreenlet_API[PyGreenlet_New_NUM])
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/*
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* PyGreenlet_GetCurrent(void)
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*
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* greenlet.getcurrent()
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*/
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#define PyGreenlet_GetCurrent \
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(* (PyGreenlet * (*)(void)) _PyGreenlet_API[PyGreenlet_GetCurrent_NUM])
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/*
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* PyGreenlet_Throw(
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* PyGreenlet *greenlet,
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* PyObject *typ,
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* PyObject *val,
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* PyObject *tb)
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*
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* g.throw(...)
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*/
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#define PyGreenlet_Throw \
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(* (PyObject * (*) \
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(PyGreenlet *self, PyObject *typ, PyObject *val, PyObject *tb)) \
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_PyGreenlet_API[PyGreenlet_Throw_NUM])
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/*
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* PyGreenlet_Switch(PyGreenlet *greenlet, PyObject *args)
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*
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* g.switch(*args, **kwargs)
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*/
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#define PyGreenlet_Switch \
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(* (PyObject * (*)(PyGreenlet *greenlet, PyObject *args, PyObject *kwargs)) \
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_PyGreenlet_API[PyGreenlet_Switch_NUM])
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/*
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* PyGreenlet_SetParent(PyObject *greenlet, PyObject *new_parent)
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*
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* g.parent = new_parent
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*/
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#define PyGreenlet_SetParent \
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(* (int (*)(PyGreenlet *greenlet, PyGreenlet *nparent)) \
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_PyGreenlet_API[PyGreenlet_SetParent_NUM])
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/* Macro that imports greenlet and initializes C API */
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#ifdef GREENLET_USE_PYCAPSULE
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#define PyGreenlet_Import() \
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{ \
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_PyGreenlet_API = (void**)PyCapsule_Import("greenlet._C_API", 0); \
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}
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#else
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#define PyGreenlet_Import() \
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{ \
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PyObject *module = PyImport_ImportModule("greenlet"); \
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if (module != NULL) { \
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PyObject *c_api_object = PyObject_GetAttrString( \
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module, "_C_API"); \
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if (c_api_object != NULL && PyCObject_Check(c_api_object)) { \
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_PyGreenlet_API = \
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(void **) PyCObject_AsVoidPtr(c_api_object); \
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Py_DECREF(c_api_object); \
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} \
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Py_DECREF(module); \
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} \
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}
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#endif
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#endif /* GREENLET_MODULE */
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_GREENLETOBJECT_H */
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