Generated by Cython 3.1.0
Yellow lines hint at Python interaction.
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" to see the C code that Cython generated for it.
Raw output: _ident.c
+01: # -*- coding: utf-8 -*-
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02: # Copyright 2018 gevent contributors. See LICENSE for details.
03: # cython: auto_pickle=False,embedsignature=True,always_allow_keywords=False
04:
05: from __future__ import absolute_import
06: from __future__ import division
07: from __future__ import print_function
08:
09:
+10: from weakref import WeakKeyDictionary
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+11: from weakref import ref
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12:
+13: from heapq import heappop
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+14: from heapq import heappush
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15:
+16: __all__ = [
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17: 'IdentRegistry',
18: ]
19:
20: class ValuedWeakRef(ref):
21: """
22: A weak ref with an associated value.
23: """
24:
+25: __slots__ = ('value',)
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26:
27:
+28: class IdentRegistry(object):
struct __pyx_vtabstruct_6gevent_15_gevent_c_ident_IdentRegistry { PyObject *(*get_ident)(struct __pyx_obj_6gevent_15_gevent_c_ident_IdentRegistry *, PyObject *, int __pyx_skip_dispatch); PyObject *(*_return_ident)(struct __pyx_obj_6gevent_15_gevent_c_ident_IdentRegistry *, struct __pyx_obj_6gevent_15_gevent_c_ident_ValuedWeakRef *, int __pyx_skip_dispatch); }; static struct __pyx_vtabstruct_6gevent_15_gevent_c_ident_IdentRegistry *__pyx_vtabptr_6gevent_15_gevent_c_ident_IdentRegistry;
29: """
30: Maintains a unique mapping of (small) non-negative integer identifiers
31: to objects that can be weakly referenced.
32:
33: It is guaranteed that no two objects will have the the same
34: identifier at the same time, as long as those objects are
35: also uniquely hashable.
36: """
37:
+38: def __init__(self):
/* Python wrapper */ static int __pyx_pw_6gevent_15_gevent_c_ident_13IdentRegistry_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/ static int __pyx_pw_6gevent_15_gevent_c_ident_13IdentRegistry_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) { CYTHON_UNUSED Py_ssize_t __pyx_nargs; CYTHON_UNUSED PyObject *const *__pyx_kwvalues; int __pyx_r; __Pyx_RefNannyDeclarations __Pyx_RefNannySetupContext("__init__ (wrapper)", 0); #if CYTHON_ASSUME_SAFE_SIZE __pyx_nargs = PyTuple_GET_SIZE(__pyx_args); #else __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return -1; #endif __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs); if (unlikely(__pyx_nargs > 0)) { __Pyx_RaiseArgtupleInvalid("__init__", 1, 0, 0, __pyx_nargs); return -1; } const Py_ssize_t __pyx_kwds_len = unlikely(__pyx_kwds) ? __Pyx_NumKwargs_VARARGS(__pyx_kwds) : 0; if (unlikely(__pyx_kwds_len < 0)) return -1; if (unlikely(__pyx_kwds_len > 0)) {__Pyx_RejectKeywords("__init__", __pyx_kwds); return -1;} __pyx_r = __pyx_pf_6gevent_15_gevent_c_ident_13IdentRegistry___init__(((struct __pyx_obj_6gevent_15_gevent_c_ident_IdentRegistry *)__pyx_v_self)); /* function exit code */ __Pyx_RefNannyFinishContext(); return __pyx_r; } static int __pyx_pf_6gevent_15_gevent_c_ident_13IdentRegistry___init__(struct __pyx_obj_6gevent_15_gevent_c_ident_IdentRegistry *__pyx_v_self) { int __pyx_r; /* … */ /* function exit code */ __pyx_r = 0; goto __pyx_L0; __pyx_L1_error:; __Pyx_XDECREF(__pyx_t_1); __Pyx_XDECREF(__pyx_t_2); __Pyx_XDECREF(__pyx_t_3); __Pyx_AddTraceback("gevent._gevent_c_ident.IdentRegistry.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename); __pyx_r = -1; __pyx_L0:; __Pyx_RefNannyFinishContext(); return __pyx_r; }
39: # {obj -> (ident, wref(obj))}
+40: self._registry = WeakKeyDictionary()
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41:
42: # A heap of numbers that have been used and returned
+43: self._available_idents = []
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44:
+45: def get_ident(self, obj):
static PyObject *__pyx_pw_6gevent_15_gevent_c_ident_13IdentRegistry_3get_ident(PyObject *__pyx_v_self, PyObject *__pyx_v_obj); /*proto*/ static PyObject *__pyx_f_6gevent_15_gevent_c_ident_13IdentRegistry_get_ident(struct __pyx_obj_6gevent_15_gevent_c_ident_IdentRegistry *__pyx_v_self, PyObject *__pyx_v_obj, CYTHON_UNUSED int __pyx_skip_dispatch) { PyObject *__pyx_v_ident = NULL; struct __pyx_obj_6gevent_15_gevent_c_ident_ValuedWeakRef *__pyx_v_vref = NULL; PyObject *__pyx_r = NULL; /* … */ /* function exit code */ __pyx_L1_error:; __Pyx_XDECREF(__pyx_t_4); __Pyx_XDECREF(__pyx_t_5); __Pyx_XDECREF(__pyx_t_8); __Pyx_XDECREF(__pyx_t_11); __Pyx_AddTraceback("gevent._gevent_c_ident.IdentRegistry.get_ident", __pyx_clineno, __pyx_lineno, __pyx_filename); __pyx_r = 0; __pyx_L0:; __Pyx_XDECREF(__pyx_v_ident); __Pyx_XDECREF((PyObject *)__pyx_v_vref); __Pyx_XGIVEREF(__pyx_r); __Pyx_RefNannyFinishContext(); return __pyx_r; } /* Python wrapper */ static PyObject *__pyx_pw_6gevent_15_gevent_c_ident_13IdentRegistry_3get_ident(PyObject *__pyx_v_self, PyObject *__pyx_v_obj); /*proto*/ PyDoc_STRVAR(__pyx_doc_6gevent_15_gevent_c_ident_13IdentRegistry_2get_ident, "IdentRegistry.get_ident(self, obj)\nRetrieve the identifier for *obj*, creating one\nif necessary."); static PyMethodDef __pyx_mdef_6gevent_15_gevent_c_ident_13IdentRegistry_3get_ident = {"get_ident", (PyCFunction)__pyx_pw_6gevent_15_gevent_c_ident_13IdentRegistry_3get_ident, METH_O, __pyx_doc_6gevent_15_gevent_c_ident_13IdentRegistry_2get_ident}; static PyObject *__pyx_pw_6gevent_15_gevent_c_ident_13IdentRegistry_3get_ident(PyObject *__pyx_v_self, PyObject *__pyx_v_obj) { CYTHON_UNUSED PyObject *const *__pyx_kwvalues; PyObject *__pyx_r = 0; __Pyx_RefNannyDeclarations __Pyx_RefNannySetupContext("get_ident (wrapper)", 0); __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs); __pyx_r = __pyx_pf_6gevent_15_gevent_c_ident_13IdentRegistry_2get_ident(((struct __pyx_obj_6gevent_15_gevent_c_ident_IdentRegistry *)__pyx_v_self), ((PyObject *)__pyx_v_obj)); /* function exit code */ __Pyx_RefNannyFinishContext(); return __pyx_r; } static PyObject *__pyx_pf_6gevent_15_gevent_c_ident_13IdentRegistry_2get_ident(struct __pyx_obj_6gevent_15_gevent_c_ident_IdentRegistry *__pyx_v_self, PyObject *__pyx_v_obj) { PyObject *__pyx_r = NULL; __Pyx_XDECREF(__pyx_r); __pyx_t_1 = __pyx_f_6gevent_15_gevent_c_ident_13IdentRegistry_get_ident(__pyx_v_self, __pyx_v_obj, 1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 45, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_1); __pyx_r = __pyx_t_1; __pyx_t_1 = 0; goto __pyx_L0; /* function exit code */ __pyx_L1_error:; __Pyx_XDECREF(__pyx_t_1); __Pyx_AddTraceback("gevent._gevent_c_ident.IdentRegistry.get_ident", __pyx_clineno, __pyx_lineno, __pyx_filename); __pyx_r = NULL; __pyx_L0:; __Pyx_XGIVEREF(__pyx_r); __Pyx_RefNannyFinishContext(); return __pyx_r; } /* … */ __pyx_t_2 = __Pyx_CyFunction_New(&__pyx_mdef_6gevent_15_gevent_c_ident_13IdentRegistry_3get_ident, __Pyx_CYFUNCTION_CCLASS, __pyx_mstate_global->__pyx_n_u_IdentRegistry_get_ident, NULL, __pyx_mstate_global->__pyx_n_u_gevent__gevent_c_ident, __pyx_mstate_global->__pyx_d, ((PyObject *)__pyx_mstate_global->__pyx_codeobj_tab[0])); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 45, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_2); if (__Pyx_SetItemOnTypeDict(__pyx_mstate_global->__pyx_ptype_6gevent_15_gevent_c_ident_IdentRegistry, __pyx_mstate_global->__pyx_n_u_get_ident, __pyx_t_2) < 0) __PYX_ERR(0, 45, __pyx_L1_error) __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
46: """
47: Retrieve the identifier for *obj*, creating one
48: if necessary.
49: """
50:
+51: try:
{ /*try:*/ { /* … */ } __pyx_L3_error:; __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0; __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0; /* … */ __pyx_L5_except_error:; __Pyx_XGIVEREF(__pyx_t_1); __Pyx_XGIVEREF(__pyx_t_2); __Pyx_XGIVEREF(__pyx_t_3); __Pyx_ExceptionReset(__pyx_t_1, __pyx_t_2, __pyx_t_3); goto __pyx_L1_error; __pyx_L7_try_return:; __Pyx_XGIVEREF(__pyx_t_1); __Pyx_XGIVEREF(__pyx_t_2); __Pyx_XGIVEREF(__pyx_t_3); __Pyx_ExceptionReset(__pyx_t_1, __pyx_t_2, __pyx_t_3); goto __pyx_L0; __pyx_L4_exception_handled:; __Pyx_XGIVEREF(__pyx_t_1); __Pyx_XGIVEREF(__pyx_t_2); __Pyx_XGIVEREF(__pyx_t_3); __Pyx_ExceptionReset(__pyx_t_1, __pyx_t_2, __pyx_t_3); }
+52: return self._registry[obj][0]
__Pyx_XDECREF(__pyx_r); __pyx_t_4 = __Pyx_PyObject_GetItem(__pyx_v_self->_registry, __pyx_v_obj); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 52, __pyx_L3_error) __Pyx_GOTREF(__pyx_t_4); __pyx_t_5 = __Pyx_GetItemInt(__pyx_t_4, 0, long, 1, __Pyx_PyLong_From_long, 0, 0, 1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 52, __pyx_L3_error) __Pyx_GOTREF(__pyx_t_5); __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0; __pyx_r = __pyx_t_5; __pyx_t_5 = 0; goto __pyx_L7_try_return;
+53: except KeyError:
__pyx_t_6 = __Pyx_PyErr_ExceptionMatches(__pyx_builtin_KeyError); if (__pyx_t_6) { __Pyx_ErrRestore(0,0,0); goto __pyx_L4_exception_handled; } goto __pyx_L5_except_error;
54: pass
55:
+56: if self._available_idents:
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57: # Take the smallest free number
+58: ident = heappop(self._available_idents)
__pyx_t_4 = NULL; __Pyx_INCREF(__pyx_v_6gevent_15_gevent_c_ident_heappop); __pyx_t_8 = __pyx_v_6gevent_15_gevent_c_ident_heappop; __pyx_t_9 = 1; #if CYTHON_UNPACK_METHODS if (unlikely(PyMethod_Check(__pyx_t_8))) { __pyx_t_4 = PyMethod_GET_SELF(__pyx_t_8); assert(__pyx_t_4); PyObject* __pyx__function = PyMethod_GET_FUNCTION(__pyx_t_8); __Pyx_INCREF(__pyx_t_4); __Pyx_INCREF(__pyx__function); __Pyx_DECREF_SET(__pyx_t_8, __pyx__function); __pyx_t_9 = 0; } #endif { PyObject *__pyx_callargs[2] = {__pyx_t_4, __pyx_v_self->_available_idents}; __pyx_t_5 = __Pyx_PyObject_FastCall(__pyx_t_8, __pyx_callargs+__pyx_t_9, (2-__pyx_t_9) | (__pyx_t_9*__Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET)); __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0; __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0; if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 58, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_5); } __pyx_v_ident = __pyx_t_5; __pyx_t_5 = 0;
59: else:
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/*else*/ { __pyx_t_5 = __pyx_v_self->_registry; __Pyx_INCREF(__pyx_t_5); __pyx_t_10 = PyObject_Length(__pyx_t_5); if (unlikely(__pyx_t_10 == ((Py_ssize_t)-1))) __PYX_ERR(0, 61, __pyx_L1_error) __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0; __pyx_t_5 = PyLong_FromSsize_t(__pyx_t_10); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 61, __pyx_L1_error) __Pyx_GOTREF(__pyx_t_5); __pyx_v_ident = __pyx_t_5; __pyx_t_5 = 0; } __pyx_L11:;
62:
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80:
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