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

   1 /* vim:set noet ts=8 sw=8 : */
   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 #define GREENLET_VERSION "0.4.17"
  15
  16 #if PY_VERSION_HEX >= 0x030700A3
  17 #  define GREENLET_USE_EXC_INFO
  18 #endif
  19
  20 #ifndef GREENLET_USE_CONTEXT_VARS
  21 #ifdef Py_CONTEXT_H
  22 #define GREENLET_USE_CONTEXT_VARS 1
  23 #else
  24 #define GREENLET_USE_CONTEXT_VARS 0
  25 #endif
  26 #endif
  27
  28 typedef struct _greenlet {
  29         PyObject_HEAD
  30         char* stack_start;
  31         char* stack_stop;
  32         char* stack_copy;
  33         intptr_t stack_saved;
  34         struct _greenlet* stack_prev;
  35         struct _greenlet* parent;
  36         PyObject* run_info;
  37         struct _frame* top_frame;
  38         int recursion_depth;
  39         PyObject* weakreflist;
  40 #ifdef GREENLET_USE_EXC_INFO
  41         _PyErr_StackItem* exc_info;
  42         _PyErr_StackItem exc_state;
  43 #else
  44         PyObject* exc_type;
  45         PyObject* exc_value;
  46         PyObject* exc_traceback;
  47 #endif
  48         PyObject* dict;
  49 #if GREENLET_USE_CONTEXT_VARS
  50         PyObject* context;
  51 #endif
  52 } PyGreenlet;
  53
  54 #define PyGreenlet_Check(op)      PyObject_TypeCheck(op, &PyGreenlet_Type)
  55 #define PyGreenlet_MAIN(op)       (((PyGreenlet*)(op))->stack_stop == (char*) -1)
  56 #define PyGreenlet_STARTED(op)    (((PyGreenlet*)(op))->stack_stop != NULL)
  57 #define PyGreenlet_ACTIVE(op)     (((PyGreenlet*)(op))->stack_start != NULL)
  58 #define PyGreenlet_GET_PARENT(op) (((PyGreenlet*)(op))->parent)
  59
  60 #if (PY_MAJOR_VERSION == 2 && PY_MINOR_VERSION >= 7) || (PY_MAJOR_VERSION == 3 && PY_MINOR_VERSION >= 1) || PY_MAJOR_VERSION > 3
  61 #define GREENLET_USE_PYCAPSULE
  62 #endif
  63
  64 /* C API functions */
  65
  66 /* Total number of symbols that are exported */
  67 #define PyGreenlet_API_pointers  8
  68
  69 #define PyGreenlet_Type_NUM       0
  70 #define PyExc_GreenletError_NUM   1
  71 #define PyExc_GreenletExit_NUM    2
  72
  73 #define PyGreenlet_New_NUM        3
  74 #define PyGreenlet_GetCurrent_NUM 4
  75 #define PyGreenlet_Throw_NUM      5
  76 #define PyGreenlet_Switch_NUM     6
  77 #define PyGreenlet_SetParent_NUM  7
  78
  79 #ifndef GREENLET_MODULE
  80 /* This section is used by modules that uses the greenlet C API */
  81 static void **_PyGreenlet_API = NULL;
  82
  83 #define PyGreenlet_Type (*(PyTypeObject *) _PyGreenlet_API[PyGreenlet_Type_NUM])
  84
  85 #define PyExc_GreenletError \
  86         ((PyObject *) _PyGreenlet_API[PyExc_GreenletError_NUM])
  87
  88 #define PyExc_GreenletExit \
  89         ((PyObject *) _PyGreenlet_API[PyExc_GreenletExit_NUM])
  90
  91 /*
  92  * PyGreenlet_New(PyObject *args)
  93  *
  94  * greenlet.greenlet(run, parent=None)
  95  */
  96 #define PyGreenlet_New \
  97         (* (PyGreenlet * (*)(PyObject *run, PyGreenlet *parent)) \
  98          _PyGreenlet_API[PyGreenlet_New_NUM])
  99
 100 /*
 101  * PyGreenlet_GetCurrent(void)
 102  *
 103  * greenlet.getcurrent()
 104  */
 105 #define PyGreenlet_GetCurrent \
 106         (* (PyGreenlet * (*)(void)) _PyGreenlet_API[PyGreenlet_GetCurrent_NUM])
 107
 108 /*
 109  * PyGreenlet_Throw(
 110  *         PyGreenlet *greenlet,
 111  *         PyObject *typ,
 112  *         PyObject *val,
 113  *         PyObject *tb)
 114  *
 115  * g.throw(...)
 116  */
 117 #define PyGreenlet_Throw \
 118         (* (PyObject * (*) \
 119             (PyGreenlet *self, PyObject *typ, PyObject *val, PyObject *tb)) \
 120          _PyGreenlet_API[PyGreenlet_Throw_NUM])
 121
 122 /*
 123  * PyGreenlet_Switch(PyGreenlet *greenlet, PyObject *args)
 124  *
 125  * g.switch(*args, **kwargs)
 126  */
 127 #define PyGreenlet_Switch \
 128         (* (PyObject * (*)(PyGreenlet *greenlet, PyObject *args, PyObject *kwargs)) \
 129          _PyGreenlet_API[PyGreenlet_Switch_NUM])
 130
 131 /*
 132  * PyGreenlet_SetParent(PyObject *greenlet, PyObject *new_parent)
 133  *
 134  * g.parent = new_parent
 135  */
 136 #define PyGreenlet_SetParent \
 137         (* (int (*)(PyGreenlet *greenlet, PyGreenlet *nparent)) \
 138          _PyGreenlet_API[PyGreenlet_SetParent_NUM])
 139
 140 /* Macro that imports greenlet and initializes C API */
 141 #ifdef GREENLET_USE_PYCAPSULE
 142 #define PyGreenlet_Import() \
 143 { \
 144         _PyGreenlet_API = (void**)PyCapsule_Import("greenlet._C_API", 0); \
 145 }
 146 #else
 147 #define PyGreenlet_Import() \
 148 { \
 149         PyObject *module = PyImport_ImportModule("greenlet"); \
 150         if (module != NULL) { \
 151                 PyObject *c_api_object = PyObject_GetAttrString( \
 152                         module, "_C_API"); \
 153                 if (c_api_object != NULL && PyCObject_Check(c_api_object)) { \
 154                         _PyGreenlet_API = \
 155                                 (void **) PyCObject_AsVoidPtr(c_api_object); \
 156                         Py_DECREF(c_api_object); \
 157                 } \
 158                 Py_DECREF(module); \
 159         } \
 160 }
 161 #endif
 162
 163 #endif /* GREENLET_MODULE */
 164
 165 #ifdef __cplusplus
 166 }
 167 #endif
 168 #endif /* !Py_GREENLETOBJECT_H */