Python ctypes._Pointer() Examples
The following are 15
code examples of ctypes._Pointer().
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Example #1
| Source File: ctypeslib.py From recruit with Apache License 2.0 | 6 votes |
|
def as_array(obj, shape=None):
"""
Create a numpy array from a ctypes array or POINTER.
The numpy array shares the memory with the ctypes object.
The shape parameter must be given if converting from a ctypes POINTER.
The shape parameter is ignored if converting from a ctypes array
"""
if isinstance(obj, ctypes._Pointer):
# convert pointers to an array of the desired shape
if shape is None:
raise TypeError(
'as_array() requires a shape argument when called on a '
'pointer')
p_arr_type = ctypes.POINTER(_ctype_ndarray(obj._type_, shape))
obj = ctypes.cast(obj, p_arr_type).contents
return array(obj, copy=False)
Example #2
| Source File: ctypeslib.py From lambda-packs with MIT License | 6 votes |
|
def as_array(obj, shape=None):
"""
Create a numpy array from a ctypes array or POINTER.
The numpy array shares the memory with the ctypes object.
The shape parameter must be given if converting from a ctypes POINTER.
The shape parameter is ignored if converting from a ctypes array
"""
if isinstance(obj, ctypes._Pointer):
# convert pointers to an array of the desired shape
if shape is None:
raise TypeError(
'as_array() requires a shape argument when called on a '
'pointer')
p_arr_type = ctypes.POINTER(_ctype_ndarray(obj._type_, shape))
obj = ctypes.cast(obj, p_arr_type).contents
return array(obj, copy=False)
Example #3
| Source File: ctypeslib.py From Mastering-Elasticsearch-7.0 with MIT License | 6 votes |
|
def as_array(obj, shape=None):
"""
Create a numpy array from a ctypes array or POINTER.
The numpy array shares the memory with the ctypes object.
The shape parameter must be given if converting from a ctypes POINTER.
The shape parameter is ignored if converting from a ctypes array
"""
if isinstance(obj, ctypes._Pointer):
# convert pointers to an array of the desired shape
if shape is None:
raise TypeError(
'as_array() requires a shape argument when called on a '
'pointer')
p_arr_type = ctypes.POINTER(_ctype_ndarray(obj._type_, shape))
obj = ctypes.cast(obj, p_arr_type).contents
return array(obj, copy=False)
Example #4
| Source File: ctypeslib.py From GraphicDesignPatternByPython with MIT License | 6 votes |
|
def as_array(obj, shape=None):
"""
Create a numpy array from a ctypes array or POINTER.
The numpy array shares the memory with the ctypes object.
The shape parameter must be given if converting from a ctypes POINTER.
The shape parameter is ignored if converting from a ctypes array
"""
if isinstance(obj, ctypes._Pointer):
# convert pointers to an array of the desired shape
if shape is None:
raise TypeError(
'as_array() requires a shape argument when called on a '
'pointer')
p_arr_type = ctypes.POINTER(_ctype_ndarray(obj._type_, shape))
obj = ctypes.cast(obj, p_arr_type).contents
return array(obj, copy=False)
Example #5
| Source File: ctypeslib.py From predictive-maintenance-using-machine-learning with Apache License 2.0 | 6 votes |
|
def as_array(obj, shape=None):
"""
Create a numpy array from a ctypes array or POINTER.
The numpy array shares the memory with the ctypes object.
The shape parameter must be given if converting from a ctypes POINTER.
The shape parameter is ignored if converting from a ctypes array
"""
if isinstance(obj, ctypes._Pointer):
# convert pointers to an array of the desired shape
if shape is None:
raise TypeError(
'as_array() requires a shape argument when called on a '
'pointer')
p_arr_type = ctypes.POINTER(_ctype_ndarray(obj._type_, shape))
obj = ctypes.cast(obj, p_arr_type).contents
return array(obj, copy=False)
Example #6
| Source File: ctypeslib.py From pySINDy with MIT License | 6 votes |
|
def as_array(obj, shape=None):
"""
Create a numpy array from a ctypes array or POINTER.
The numpy array shares the memory with the ctypes object.
The shape parameter must be given if converting from a ctypes POINTER.
The shape parameter is ignored if converting from a ctypes array
"""
if isinstance(obj, ctypes._Pointer):
# convert pointers to an array of the desired shape
if shape is None:
raise TypeError(
'as_array() requires a shape argument when called on a '
'pointer')
p_arr_type = ctypes.POINTER(_ctype_ndarray(obj._type_, shape))
obj = ctypes.cast(obj, p_arr_type).contents
return array(obj, copy=False)
Example #7
| Source File: ctypeslib.py From coffeegrindsize with MIT License | 6 votes |
|
def as_array(obj, shape=None):
"""
Create a numpy array from a ctypes array or POINTER.
The numpy array shares the memory with the ctypes object.
The shape parameter must be given if converting from a ctypes POINTER.
The shape parameter is ignored if converting from a ctypes array
"""
if isinstance(obj, ctypes._Pointer):
# convert pointers to an array of the desired shape
if shape is None:
raise TypeError(
'as_array() requires a shape argument when called on a '
'pointer')
p_arr_type = ctypes.POINTER(_ctype_ndarray(obj._type_, shape))
obj = ctypes.cast(obj, p_arr_type).contents
return array(obj, copy=False)
Example #8
| Source File: ctypeslib.py From Carnets with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
def as_array(obj, shape=None):
"""
Create a numpy array from a ctypes array or POINTER.
The numpy array shares the memory with the ctypes object.
The shape parameter must be given if converting from a ctypes POINTER.
The shape parameter is ignored if converting from a ctypes array
"""
if isinstance(obj, ctypes._Pointer):
# convert pointers to an array of the desired shape
if shape is None:
raise TypeError(
'as_array() requires a shape argument when called on a '
'pointer')
p_arr_type = ctypes.POINTER(_ctype_ndarray(obj._type_, shape))
obj = ctypes.cast(obj, p_arr_type).contents
return array(obj, copy=False)
Example #9
| Source File: ctypeslib.py From Serverless-Deep-Learning-with-TensorFlow-and-AWS-Lambda with MIT License | 6 votes |
|
def as_array(obj, shape=None):
"""
Create a numpy array from a ctypes array or POINTER.
The numpy array shares the memory with the ctypes object.
The shape parameter must be given if converting from a ctypes POINTER.
The shape parameter is ignored if converting from a ctypes array
"""
if isinstance(obj, ctypes._Pointer):
# convert pointers to an array of the desired shape
if shape is None:
raise TypeError(
'as_array() requires a shape argument when called on a '
'pointer')
p_arr_type = ctypes.POINTER(_ctype_ndarray(obj._type_, shape))
obj = ctypes.cast(obj, p_arr_type).contents
return array(obj, copy=False)
Example #10
| Source File: ctypeslib.py From twitter-stock-recommendation with MIT License | 6 votes |
|
def as_array(obj, shape=None):
"""
Create a numpy array from a ctypes array or POINTER.
The numpy array shares the memory with the ctypes object.
The shape parameter must be given if converting from a ctypes POINTER.
The shape parameter is ignored if converting from a ctypes array
"""
if isinstance(obj, ctypes._Pointer):
# convert pointers to an array of the desired shape
if shape is None:
raise TypeError(
'as_array() requires a shape argument when called on a '
'pointer')
p_arr_type = ctypes.POINTER(_ctype_ndarray(obj._type_, shape))
obj = ctypes.cast(obj, p_arr_type).contents
return array(obj, copy=False)
Example #11
| Source File: breakpoint.py From PyDev.Debugger with Eclipse Public License 1.0 | 5 votes |
|
def _cast_signature_pointers_to_void(self, signature):
c_void_p = ctypes.c_void_p
c_char_p = ctypes.c_char_p
c_wchar_p = ctypes.c_wchar_p
_Pointer = ctypes._Pointer
cast = ctypes.cast
for i in compat.xrange(len(signature)):
t = signature[i]
if t is not c_void_p and (issubclass(t, _Pointer) \
or t in [c_char_p, c_wchar_p]):
signature[i] = cast(t, c_void_p)
Example #12
| Source File: breakpoint.py From OpenXMolar with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
def _cast_signature_pointers_to_void(self, signature):
c_void_p = ctypes.c_void_p
c_char_p = ctypes.c_char_p
c_wchar_p = ctypes.c_wchar_p
_Pointer = ctypes._Pointer
cast = ctypes.cast
for i in xrange(len(signature)):
t = signature[i]
if t is not c_void_p and (issubclass(t, _Pointer) \
or t in [c_char_p, c_wchar_p]):
signature[i] = cast(t, c_void_p)
Example #13
| Source File: utils.py From devito with MIT License | 5 votes |
|
def ctypes_to_cstr(ctype, toarray=None):
"""Translate ctypes types into C strings."""
if issubclass(ctype, ctypes.Structure):
return 'struct %s' % ctype.__name__
elif issubclass(ctype, ctypes.Union):
return 'union %s' % ctype.__name__
elif issubclass(ctype, ctypes._Pointer):
if toarray:
return ctypes_to_cstr(ctype._type_, '(* %s)' % toarray)
else:
return '%s *' % ctypes_to_cstr(ctype._type_)
elif issubclass(ctype, ctypes.Array):
return '%s[%d]' % (ctypes_to_cstr(ctype._type_, toarray), ctype._length_)
elif ctype.__name__.startswith('c_'):
# A primitive datatype
# FIXME: Is there a better way of extracting the C typename ?
# Here, we're following the ctypes convention that each basic type has
# either the format c_X_p or c_X, where X is the C typename, for instance
# `int` or `float`.
if ctype.__name__.endswith('_p'):
return '%s *' % ctype.__name__[2:-2]
elif toarray:
return '%s %s' % (ctype.__name__[2:], toarray)
else:
return ctype.__name__[2:]
else:
# A custom datatype (e.g., a typedef-ed pointer to struct)
return ctype.__name__
Example #14
| Source File: breakpoint.py From filmkodi with Apache License 2.0 | 5 votes |
|
def _cast_signature_pointers_to_void(self, signature):
c_void_p = ctypes.c_void_p
c_char_p = ctypes.c_char_p
c_wchar_p = ctypes.c_wchar_p
_Pointer = ctypes._Pointer
cast = ctypes.cast
for i in compat.xrange(len(signature)):
t = signature[i]
if t is not c_void_p and (issubclass(t, _Pointer) \
or t in [c_char_p, c_wchar_p]):
signature[i] = cast(t, c_void_p)
Example #15
| Source File: enumerate_windef.py From windbgtool with MIT License | 5 votes |
|
def enumerate_winstructs(self):
for obj in vars(windows.generated_def.winstructs):
instance = eval("windows.generated_def.winstructs." + obj)
if hasattr(instance, '__bases__'):
if instance.__bases__[0] is Structure or instance.__bases__[0] is Union or hasattr(instance, '_fields_'):
self.structures[obj] = {}
self.structures[obj]['type'] = instance.__bases__[0].__name__
self.structures[obj]['fields'] = self.get_fields(instance)
elif instance.__bases__[0] is windows.generated_def.winstructs.EnumType:
self.enums[obj] = {}
enum_values = []
for value in instance.values:
enum_values.append({'name': value.name, 'real': value.real})
self.enums[obj]['values'] = enum_values
elif instance.__bases__[0] is _Pointer:
self.pointers[obj] = {}
self.pointers[obj]['type_name'] = instance._type_.__name__
elif instance.__bases__[0] is _SimpleCData:
continue
elif instance.__bases__[0] is CDLL:
continue
elif instance.__bases__[0] is object:
continue
elif instance.__bases__[0] is dict:
continue
elif instance.__bases__[0] is c_ulong:
continue
elif instance.__bases__[0] is Exception:
continue
else:
if self.debug_level > 0:
self.dump_object(obj, instance)
