.local/include/python2.7/greenlet/greenlet.h

   1 /* -*- indent-tabs-mode: nil; tab-width: 4; -*- */
   2
   3 /* Greenlet object interface */
   4
   5 #ifndef Py_GREENLETOBJECT_H
   6 #define Py_GREENLETOBJECT_H
   7
   8 #include <Python.h>
   9
  10 #ifdef __cplusplus
  11 extern "C" {
  12 #endif
  13
  14 /* This is deprecated and undocumented. It does not change. */
  15 #define GREENLET_VERSION "1.0.0"
  16
  17 typedef struct _greenlet {
  18     PyObject_HEAD
  19     char* stack_start;
  20     char* stack_stop;
  21     char* stack_copy;
  22     intptr_t stack_saved;
  23     struct _greenlet* stack_prev;
  24     struct _greenlet* parent;
  25     PyObject* run_info;
  26     struct _frame* top_frame;
  27     int recursion_depth;
  28     PyObject* weakreflist;
  29 #if PY_VERSION_HEX >= 0x030700A3
  30     _PyErr_StackItem* exc_info;
  31     _PyErr_StackItem exc_state;
  32 #else
  33     PyObject* exc_type;
  34     PyObject* exc_value;
  35     PyObject* exc_traceback;
  36 #endif
  37     PyObject* dict;
  38 #if PY_VERSION_HEX >= 0x030700A3
  39     PyObject* context;
  40 #endif
  41 } PyGreenlet;
  42
  43 #define PyGreenlet_Check(op) PyObject_TypeCheck(op, &PyGreenlet_Type)
  44 #define PyGreenlet_MAIN(op) (((PyGreenlet*)(op))->stack_stop == (char*)-1)
  45 #define PyGreenlet_STARTED(op) (((PyGreenlet*)(op))->stack_stop != NULL)
  46 #define PyGreenlet_ACTIVE(op) (((PyGreenlet*)(op))->stack_start != NULL)
  47 #define PyGreenlet_GET_PARENT(op) (((PyGreenlet*)(op))->parent)
  48
  49 /* C API functions */
  50
  51 /* Total number of symbols that are exported */
  52 #define PyGreenlet_API_pointers 8
  53
  54 #define PyGreenlet_Type_NUM 0
  55 #define PyExc_GreenletError_NUM 1
  56 #define PyExc_GreenletExit_NUM 2
  57
  58 #define PyGreenlet_New_NUM 3
  59 #define PyGreenlet_GetCurrent_NUM 4
  60 #define PyGreenlet_Throw_NUM 5
  61 #define PyGreenlet_Switch_NUM 6
  62 #define PyGreenlet_SetParent_NUM 7
  63
  64 #ifndef GREENLET_MODULE
  65 /* This section is used by modules that uses the greenlet C API */
  66 static void** _PyGreenlet_API = NULL;
  67
  68 #    define PyGreenlet_Type \
  69         (*(PyTypeObject*)_PyGreenlet_API[PyGreenlet_Type_NUM])
  70
  71 #    define PyExc_GreenletError \
  72         ((PyObject*)_PyGreenlet_API[PyExc_GreenletError_NUM])
  73
  74 #    define PyExc_GreenletExit \
  75         ((PyObject*)_PyGreenlet_API[PyExc_GreenletExit_NUM])
  76
  77 /*
  78  * PyGreenlet_New(PyObject *args)
  79  *
  80  * greenlet.greenlet(run, parent=None)
  81  */
  82 #    define PyGreenlet_New                                        \
  83         (*(PyGreenlet * (*)(PyObject * run, PyGreenlet * parent)) \
  84              _PyGreenlet_API[PyGreenlet_New_NUM])
  85
  86 /*
  87  * PyGreenlet_GetCurrent(void)
  88  *
  89  * greenlet.getcurrent()
  90  */
  91 #    define PyGreenlet_GetCurrent \
  92         (*(PyGreenlet * (*)(void)) _PyGreenlet_API[PyGreenlet_GetCurrent_NUM])
  93
  94 /*
  95  * PyGreenlet_Throw(
  96  *         PyGreenlet *greenlet,
  97  *         PyObject *typ,
  98  *         PyObject *val,
  99  *         PyObject *tb)
 100  *
 101  * g.throw(...)
 102  */
 103 #    define PyGreenlet_Throw                 \
 104         (*(PyObject * (*)(PyGreenlet * self, \
 105                           PyObject * typ,    \
 106                           PyObject * val,    \
 107                           PyObject * tb))    \
 108              _PyGreenlet_API[PyGreenlet_Throw_NUM])
 109
 110 /*
 111  * PyGreenlet_Switch(PyGreenlet *greenlet, PyObject *args)
 112  *
 113  * g.switch(*args, **kwargs)
 114  */
 115 #    define PyGreenlet_Switch                                              \
 116         (*(PyObject *                                                      \
 117            (*)(PyGreenlet * greenlet, PyObject * args, PyObject * kwargs)) \
 118              _PyGreenlet_API[PyGreenlet_Switch_NUM])
 119
 120 /*
 121  * PyGreenlet_SetParent(PyObject *greenlet, PyObject *new_parent)
 122  *
 123  * g.parent = new_parent
 124  */
 125 #    define PyGreenlet_SetParent                                 \
 126         (*(int (*)(PyGreenlet * greenlet, PyGreenlet * nparent)) \
 127              _PyGreenlet_API[PyGreenlet_SetParent_NUM])
 128
 129 /* Macro that imports greenlet and initializes C API */
 130 /* NOTE: This has actually moved to ``greenlet._greenlet._C_API``, but we
 131    keep the older definition to be sure older code that might have a copy of
 132    the header still works. */
 133 #    define PyGreenlet_Import()                                               \
 134         {                                                                     \
 135             _PyGreenlet_API = (void**)PyCapsule_Import("greenlet._C_API", 0); \
 136         }
 137
 138 #endif /* GREENLET_MODULE */
 139
 140 #ifdef __cplusplus
 141 }
 142 #endif
 143 #endif /* !Py_GREENLETOBJECT_H */