from bt2 import native_bt, object, utils
import collections.abc
import bt2.field
-import abc
+import bt2.field_path
import bt2
return _FIELD_CLASS_TYPE_TO_OBJ[typeid]._create_from_ptr_and_get_ref(ptr)
-class _FieldClass(object._SharedObject, metaclass=abc.ABCMeta):
- _get_ref = staticmethod(native_bt.field_class_get_ref)
- _put_ref = staticmethod(native_bt.field_class_put_ref)
-
- def __init__(self, ptr):
- super().__init__(ptr)
-
- def __eq__(self, other):
- if not isinstance(other, self.__class__):
- # not comparing apples to apples
- return False
+class IntegerDisplayBase:
+ BINARY = native_bt.FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_BINARY
+ OCTAL = native_bt.FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_OCTAL
+ DECIMAL = native_bt.FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL
+ HEXADECIMAL = native_bt.FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL
- if self.addr == other.addr:
- return True
- ret = native_bt.field_class_compare(self._ptr, other._ptr)
- utils._handle_ret(ret, "cannot compare field classes")
- return ret == 0
+class _FieldClass(object._SharedObject):
+ _get_ref = staticmethod(native_bt.field_class_get_ref)
+ _put_ref = staticmethod(native_bt.field_class_put_ref)
def _check_create_status(self, ptr):
if ptr is None:
raise bt2.CreationError('cannot create {} field class object'.format(self._NAME.lower()))
- def __copy__(self):
- ptr = native_bt.field_class_copy(self._ptr)
- utils._handle_ptr(ptr, 'cannot copy {} field class object'.format(self._NAME.lower()))
- return _create_from_ptr(ptr)
-
- def __deepcopy__(self, memo):
- cpy = self.__copy__()
- memo[id(self)] = cpy
- return cpy
-
- def __call__(self, value=None):
- field_ptr = native_bt.field_create(self._ptr)
-
- if field_ptr is None:
- raise bt2.CreationError('cannot create {} field object'.format(self._NAME.lower()))
-
- field = bt2.field._create_from_ptr(field_ptr)
-
- if value is not None:
- if not isinstance(field, (bt2.field._IntegerField, bt2.field._FloatingPointNumberField, bt2.field._StringField)):
- raise bt2.Error('cannot assign an initial value to a {} field object'.format(field._NAME))
-
- field.value = value
-
- return field
-
-
-class _AlignmentProp:
- @property
- def alignment(self):
- alignment = native_bt.field_class_get_alignment(self._ptr)
- assert(alignment >= 0)
- return alignment
-
- @alignment.setter
- def alignment(self, alignment):
- utils._check_alignment(alignment)
- ret = native_bt.field_class_set_alignment(self._ptr, alignment)
- utils._handle_ret(ret, "cannot set field class object's alignment")
-
-
-class _ByteOrderProp:
- @property
- def byte_order(self):
- bo = native_bt.field_class_get_byte_order(self._ptr)
- assert(bo >= 0)
- return bo
-
- @byte_order.setter
- def byte_order(self, byte_order):
- utils._check_int(byte_order)
- ret = native_bt.field_class_set_byte_order(self._ptr, byte_order)
- utils._handle_ret(ret, "cannot set field class object's byte order")
-
class _IntegerFieldClass(_FieldClass):
-
- def __init__(self, size, alignment=None, byte_order=None, is_signed=None,
- base=None, encoding=None, mapped_clock_class=None):
- utils._check_uint64(size)
-
- if size == 0:
- raise ValueError('size is 0 bits')
-
- ptr = native_bt.field_class_integer_create(size)
- self._check_create_status(ptr)
- super().__init__(ptr)
-
- if alignment is not None:
- self.alignment = alignment
-
- if byte_order is not None:
- self.byte_order = byte_order
-
- if is_signed is not None:
- self.is_signed = is_signed
-
- if base is not None:
- self.base = base
-
- if encoding is not None:
- self.encoding = encoding
-
- if mapped_clock_class is not None:
- self.mapped_clock_class = mapped_clock_class
-
@property
- def size(self):
- size = native_bt.field_class_integer_get_size(self._ptr)
+ def field_value_range(self):
+ size = native_bt.field_class_integer_get_field_value_range(self._ptr)
assert(size >= 1)
return size
- @property
- def is_signed(self):
- is_signed = native_bt.field_class_integer_is_signed(self._ptr)
- assert(is_signed >= 0)
- return is_signed > 0
+ def _field_value_range(self, size):
+ if size < 1 or size > 64:
+ raise ValueError("Value is outside valid range [1, 64] ({})".format(size))
+ native_bt.field_class_integer_set_field_value_range(self._ptr, size)
- @is_signed.setter
- def is_signed(self, is_signed):
- utils._check_bool(is_signed)
- ret = native_bt.field_class_integer_set_is_signed(self._ptr, int(is_signed))
- utils._handle_ret(ret, "cannot set integer field class object's signedness")
+ _field_value_range = property(fset=_field_value_range)
@property
- def base(self):
- base = native_bt.field_class_integer_get_base(self._ptr)
+ def preferred_display_base(self):
+ base = native_bt.field_class_integer_get_preferred_display_base(
+ self._ptr)
assert(base >= 0)
return base
- @base.setter
- def base(self, base):
- utils._check_int(base)
- ret = native_bt.field_class_integer_set_base(self._ptr, base)
- utils._handle_ret(ret, "cannot set integer field class object's base")
+ def _preferred_display_base(self, base):
+ utils._check_uint64(base)
- @property
- def encoding(self):
- encoding = native_bt.field_class_integer_get_encoding(self._ptr)
- assert(encoding >= 0)
- return encoding
+ if base not in (IntegerDisplayBase.BINARY,
+ IntegerDisplayBase.OCTAL,
+ IntegerDisplayBase.DECIMAL,
+ IntegerDisplayBase.HEXADECIMAL):
+ raise ValueError("Display base is not a valid IntegerDisplayBase value")
- @encoding.setter
- def encoding(self, encoding):
- utils._check_int(encoding)
- ret = native_bt.field_class_integer_set_encoding(self._ptr, encoding)
- utils._handle_ret(ret, "cannot set integer field class object's encoding")
+ native_bt.field_class_integer_set_preferred_display_base(
+ self._ptr, base)
- @property
- def mapped_clock_class(self):
- ptr = native_bt.field_class_integer_get_mapped_clock_class(self._ptr)
-
- if ptr is None:
- return
-
- return bt2.ClockClass._create_from_ptr(ptr)
-
- @mapped_clock_class.setter
- def mapped_clock_class(self, clock_class):
- utils._check_type(clock_class, bt2.ClockClass)
- ret = native_bt.field_class_integer_set_mapped_clock_class(self._ptr, clock_class._ptr)
- utils._handle_ret(ret, "cannot set integer field class object's mapped clock class")
+ _preferred_display_base = property(fset=_preferred_display_base)
class _UnsignedIntegerFieldClass(_IntegerFieldClass):
- pass
+ _NAME = 'Unsigned integer'
class _SignedIntegerFieldClass(_IntegerFieldClass):
- pass
-
-
-class UnsignedIntegerFieldClass(_UnsignedIntegerFieldClass):
- _NAME = 'UnsignedInteger'
-
+ _NAME = 'Signed integer'
-class SignedIntegerFieldClass(_SignedIntegerFieldClass):
- _NAME = 'SignedInteger'
-
-class RealFieldClass(_FieldClass):
+class _RealFieldClass(_FieldClass):
_NAME = 'Real'
- def __init__(self, alignment=None, byte_order=None, exponent_size=None,
- mantissa_size=None):
- ptr = native_bt.field_class_floating_point_create()
- self._check_create_status(ptr)
- super().__init__(ptr)
-
- if alignment is not None:
- self.alignment = alignment
-
- if byte_order is not None:
- self.byte_order = byte_order
-
- if exponent_size is not None:
- self.exponent_size = exponent_size
-
- if mantissa_size is not None:
- self.mantissa_size = mantissa_size
-
@property
- def exponent_size(self):
- exp_size = native_bt.field_class_floating_point_get_exponent_digits(self._ptr)
- assert(exp_size >= 0)
- return exp_size
+ def is_single_precision(self):
+ return native_bt.field_class_real_is_single_precision(self._ptr)
- @exponent_size.setter
- def exponent_size(self, exponent_size):
- utils._check_uint64(exponent_size)
- ret = native_bt.field_class_floating_point_set_exponent_digits(self._ptr, exponent_size)
- utils._handle_ret(ret, "cannot set floating point number field class object's exponent size")
-
- @property
- def mantissa_size(self):
- mant_size = native_bt.field_class_floating_point_get_mantissa_digits(self._ptr)
- assert(mant_size >= 0)
- return mant_size
+ def _is_single_precision(self, is_single_precision):
+ utils._check_bool(is_single_precision)
+ native_bt.field_class_real_set_is_single_precision(
+ self._ptr, is_single_precision)
- @mantissa_size.setter
- def mantissa_size(self, mantissa_size):
- utils._check_uint64(mantissa_size)
- ret = native_bt.field_class_floating_point_set_mantissa_digits(self._ptr, mantissa_size)
- utils._handle_ret(ret, "cannot set floating point number field class object's mantissa size")
+ _is_single_precision = property(fset=_is_single_precision)
-class _EnumerationFieldClassMapping:
- def __init__(self, name, lower, upper):
- self._name = name
+class _EnumerationFieldClassMappingRange:
+ def __init__(self, lower, upper):
self._lower = lower
self._upper = upper
- @property
- def name(self):
- return self._name
-
@property
def lower(self):
return self._lower
return self._upper
def __eq__(self, other):
- if type(other) is not self.__class__:
- return False
-
- return (self.name, self.lower, self.upper) == (other.name, other.lower, other.upper)
-
-
-class _EnumerationFieldClassMappingIterator(object._SharedObject,
- collections.abc.Iterator):
- def __init__(self, iter_ptr, is_signed):
- super().__init__(iter_ptr)
- self._is_signed = is_signed
- self._done = (iter_ptr is None)
-
- def __next__(self):
- if self._done:
- raise StopIteration
-
- ret = native_bt.field_class_enumeration_mapping_iterator_next(self._ptr)
- if ret < 0:
- self._done = True
- raise StopIteration
-
- if self._is_signed:
- ret, name, lower, upper = native_bt.field_class_enumeration_mapping_iterator_get_signed(self._ptr)
- else:
- ret, name, lower, upper = native_bt.field_class_enumeration_mapping_iterator_get_unsigned(self._ptr)
-
- assert(ret == 0)
- mapping = _EnumerationFieldClassMapping(name, lower, upper)
-
- return mapping
-
-
-class EnumerationFieldClass(_IntegerFieldClass, collections.abc.Sequence):
- _NAME = 'Enumeration'
-
- def __init__(self, int_field_class=None, size=None, alignment=None,
- byte_order=None, is_signed=None, base=None, encoding=None,
- mapped_clock_class=None):
- if int_field_class is None:
- int_field_class = IntegerFieldClass(size=size, alignment=alignment,
- byte_order=byte_order,
- is_signed=is_signed, base=base,
- encoding=encoding,
- mapped_clock_class=mapped_clock_class)
-
- utils._check_type(int_field_class, IntegerFieldClass)
- ptr = native_bt.field_class_enumeration_create(int_field_class._ptr)
- self._check_create_status(ptr)
- _FieldClass.__init__(self, ptr)
-
- @property
- def integer_field_class(self):
- ptr = native_bt.field_class_enumeration_get_container_type(self._ptr)
- assert(ptr)
- return _create_from_ptr(ptr)
-
- @property
- def size(self):
- return self.integer_field_class.size
+ return self.lower == other.lower and self.upper == other.upper
- @property
- def alignment(self):
- return self.integer_field_class.alignment
- @alignment.setter
- def alignment(self, alignment):
- self.integer_field_class.alignment = alignment
+class _EnumerationFieldClassMapping(collections.abc.Set):
+ def __init__(self, mapping_ptr):
+ self._mapping_ptr = mapping_ptr
@property
- def byte_order(self):
- return self.integer_field_class.byte_order
-
- @byte_order.setter
- def byte_order(self, byte_order):
- self.integer_field_class.byte_order = byte_order
+ def label(self):
+ mapping_ptr = self._as_enumeration_field_class_mapping_ptr(self._mapping_ptr)
+ label = native_bt.field_class_enumeration_mapping_get_label(mapping_ptr)
+ assert label is not None
+ return label
- @property
- def is_signed(self):
- return self.integer_field_class.is_signed
+ def __len__(self):
+ mapping_ptr = self._as_enumeration_field_class_mapping_ptr(self._mapping_ptr)
+ return native_bt.field_class_enumeration_mapping_get_range_count(mapping_ptr)
- @is_signed.setter
- def is_signed(self, is_signed):
- self.integer_field_class.is_signed = is_signed
+ def __contains__(self, other_range):
+ for curr_range in self:
+ if curr_range == other_range:
+ return True
+ return False
- @property
- def base(self):
- return self.integer_field_class.base
+ def __iter__(self):
+ for idx in range(len(self)):
+ lower, upper = self._get_range_by_index(self._mapping_ptr, idx)
+ yield _EnumerationFieldClassMappingRange(lower, upper)
- @base.setter
- def base(self, base):
- self.integer_field_class.base = base
- @property
- def encoding(self):
- return self.integer_field_class.encoding
+class _UnsignedEnumerationFieldClassMapping(_EnumerationFieldClassMapping):
+ _as_enumeration_field_class_mapping_ptr = staticmethod(native_bt.field_class_unsigned_enumeration_mapping_as_mapping_const)
+ _get_range_by_index = staticmethod(native_bt.field_class_unsigned_enumeration_mapping_get_range_by_index)
- @encoding.setter
- def encoding(self, encoding):
- self.integer_field_class.encoding = encoding
- @property
- def mapped_clock_class(self):
- return self.integer_field_class.mapped_clock_class
+class _SignedEnumerationFieldClassMapping(_EnumerationFieldClassMapping):
+ _as_enumeration_field_class_mapping_ptr = staticmethod(native_bt.field_class_signed_enumeration_mapping_as_mapping_const)
+ _get_range_by_index = staticmethod(native_bt.field_class_signed_enumeration_mapping_get_range_by_index)
- @mapped_clock_class.setter
- def mapped_clock_class(self, mapped_clock_class):
- self.integer_field_class.mapped_clock_class = mapped_clock_class
+class _EnumerationFieldClass(_IntegerFieldClass, collections.abc.Mapping):
def __len__(self):
count = native_bt.field_class_enumeration_get_mapping_count(self._ptr)
assert(count >= 0)
return count
- def __getitem__(self, index):
- utils._check_uint64(index)
+ def map_range(self, label, lower, upper=None):
+ utils._check_str(label)
- if index >= len(self):
- raise IndexError
+ if upper is None:
+ upper = lower
- if self.is_signed:
- get_fn = native_bt.field_class_enumeration_get_mapping_signed
- else:
- get_fn = native_bt.field_class_enumeration_get_mapping_unsigned
+ ret = self._map_range(self._ptr, label, lower, upper)
+ utils._handle_ret(ret, "cannot add mapping to enumeration field class object")
- ret, name, lower, upper = get_fn(self._ptr, index)
- assert(ret == 0)
- return _EnumerationFieldClassMapping(name, lower, upper)
+ def labels_by_value(self, value):
+ ret, labels = self._get_mapping_labels_by_value(self._ptr, value)
+ utils._handle_ret(ret, "cannot get mapping labels")
+ return labels
- def _get_mapping_iter(self, iter_ptr):
- return _EnumerationFieldClassMappingIterator(iter_ptr, self.is_signed)
+ def __iter__(self):
+ for idx in range(len(self)):
+ mapping = self._get_mapping_by_index(self._ptr, idx)
+ yield mapping.label
- def mappings_by_name(self, name):
- utils._check_str(name)
- iter_ptr = native_bt.field_class_enumeration_find_mappings_by_name(self._ptr, name)
- print('iter_ptr', iter_ptr)
- return self._get_mapping_iter(iter_ptr)
+ def __getitem__(self, key):
+ utils._check_str(key)
+ for idx in range(len(self)):
+ mapping = self._get_mapping_by_index(self._ptr, idx)
+ if mapping.label == key:
+ return mapping
- def mappings_by_value(self, value):
- if self.is_signed:
- utils._check_int64(value)
- iter_ptr = native_bt.field_class_enumeration_find_mappings_by_signed_value(self._ptr, value)
- else:
- utils._check_uint64(value)
- iter_ptr = native_bt.field_class_enumeration_find_mappings_by_unsigned_value(self._ptr, value)
+ raise KeyError(key)
- return self._get_mapping_iter(iter_ptr)
+ def __iadd__(self, mappings):
+ for mapping in mappings.values():
+ for range in mapping:
+ self.map_range(mapping.label, range.lower, range.upper)
- def add_mapping(self, name, lower, upper=None):
- utils._check_str(name)
+ return self
- if upper is None:
- upper = lower
- if self.is_signed:
- add_fn = native_bt.field_class_enumeration_add_mapping_signed
- utils._check_int64(lower)
- utils._check_int64(upper)
- else:
- add_fn = native_bt.field_class_enumeration_add_mapping_unsigned
- utils._check_uint64(lower)
- utils._check_uint64(upper)
+class _UnsignedEnumerationFieldClass(_EnumerationFieldClass, _UnsignedIntegerFieldClass):
+ _NAME = 'Unsigned enumeration'
- ret = add_fn(self._ptr, name, lower, upper)
- utils._handle_ret(ret, "cannot add mapping to enumeration field class object")
+ @staticmethod
+ def _get_mapping_by_index(enum_ptr, index):
+ mapping_ptr = native_bt.field_class_unsigned_enumeration_borrow_mapping_by_index_const(enum_ptr, index)
+ assert mapping_ptr is not None
+ return _UnsignedEnumerationFieldClassMapping(mapping_ptr)
- def __iadd__(self, mappings):
- for mapping in mappings:
- self.add_mapping(mapping.name, mapping.lower, mapping.upper)
+ @staticmethod
+ def _map_range(enum_ptr, label, lower, upper):
+ utils._check_uint64(lower)
+ utils._check_uint64(upper)
+ return native_bt.field_class_unsigned_enumeration_map_range(enum_ptr, label, lower, upper)
- return self
+ @staticmethod
+ def _get_mapping_labels_by_value(enum_ptr, value):
+ utils._check_uint64(value)
+ return native_bt.field_class_unsigned_enumeration_get_mapping_labels_by_value(enum_ptr, value)
-class StringFieldClass(_FieldClass):
- _NAME = 'String'
+class _SignedEnumerationFieldClass(_EnumerationFieldClass, _SignedIntegerFieldClass):
+ _NAME = 'Signed enumeration'
- def __init__(self, encoding=None):
- ptr = native_bt.field_class_string_create()
- self._check_create_status(ptr)
- super().__init__(ptr)
+ @staticmethod
+ def _get_mapping_by_index(enum_ptr, index):
+ mapping_ptr = native_bt.field_class_signed_enumeration_borrow_mapping_by_index_const(enum_ptr, index)
+ assert mapping_ptr is not None
+ return _SignedEnumerationFieldClassMapping(mapping_ptr)
- if encoding is not None:
- self.encoding = encoding
+ @staticmethod
+ def _map_range(enum_ptr, label, lower, upper):
+ utils._check_int64(lower)
+ utils._check_int64(upper)
+ return native_bt.field_class_signed_enumeration_map_range(enum_ptr, label, lower, upper)
- @property
- def encoding(self):
- encoding = native_bt.field_class_string_get_encoding(self._ptr)
- assert(encoding >= 0)
- return encoding
+ @staticmethod
+ def _get_mapping_labels_by_value(enum_ptr, value):
+ utils._check_int64(value)
+ return native_bt.field_class_signed_enumeration_get_mapping_labels_by_value(enum_ptr, value)
- @encoding.setter
- def encoding(self, encoding):
- utils._check_int(encoding)
- ret = native_bt.field_class_string_set_encoding(self._ptr, encoding)
- utils._handle_ret(ret, "cannot set string field class object's encoding")
+
+class _StringFieldClass(_FieldClass):
+ _NAME = 'String'
class _FieldContainer(collections.abc.Mapping):
def __len__(self):
- count = self._count()
- assert(count >= 0)
+ count = self._get_element_count(self._ptr)
+ assert count >= 0
return count
def __getitem__(self, key):
if not isinstance(key, str):
- raise TypeError("'{}' is not a 'str' object".format(key.__class__.__name__))
+ raise TypeError("key should be a 'str' object, got {}".format(key.__class__.__name__))
- ptr = self._get_field_by_name(key)
+ ptr = self._borrow_field_class_ptr_by_name(key)
if ptr is None:
raise KeyError(key)
- return _create_from_ptr(ptr)
+ return _create_field_class_from_ptr_and_get_ref(ptr)
+
+ def _borrow_field_class_ptr_by_name(self, key):
+ element_ptr = self._borrow_element_by_name(self._ptr, key)
+ if element_ptr is None:
+ return
+
+ return self._element_borrow_field_class(element_ptr)
def __iter__(self):
- return self._ITER_CLS(self)
+ for idx in range(len(self)):
+ element_ptr = self._borrow_element_by_index(self._ptr, idx)
+ assert element_ptr is not None
- def append_field(self, name, field_class):
+ yield self._element_get_name(element_ptr)
+
+ def _append_element_common(self, name, field_class):
utils._check_str(name)
utils._check_type(field_class, _FieldClass)
- ret = self._add_field(name, field_class._ptr)
+ ret = self._append_element(self._ptr, name, field_class._ptr)
utils._handle_ret(ret, "cannot add field to {} field class object".format(self._NAME.lower()))
def __iadd__(self, fields):
for name, field_class in fields.items():
- self.append_field(name, field_class)
+ self._append_element_common(name, field_class)
return self
- def at_index(self, index):
+ def _at_index(self, index):
utils._check_uint64(index)
- return self._at(index)
-
-class _StructureFieldClassFieldIterator(collections.abc.Iterator):
- def __init__(self, struct_field_class):
- self._struct_field_class = struct_field_class
- self._at = 0
-
- def __next__(self):
- if self._at == len(self._struct_field_class):
- raise StopIteration
-
- get_fc_by_index = native_bt.field_class_structure_get_field_by_index
- ret, name, field_class_ptr = get_fc_by_index(self._struct_field_class._ptr,
- self._at)
- assert(ret == 0)
- native_bt.put(field_class_ptr)
- self._at += 1
- return name
-
-
-class _StructureFieldClass(_FieldClass, _FieldContainer, _AlignmentProp):
- _NAME = 'Structure'
- _ITER_CLS = _StructureFieldClassFieldIterator
-
- def __init__(self, min_alignment=None):
- ptr = native_bt.field_class_structure_create()
- self._check_create_status(ptr)
- super().__init__(ptr)
-
- if min_alignment is not None:
- self.min_alignment = min_alignment
-
- def _count(self):
- return native_bt.field_class_structure_get_field_count(self._ptr)
-
- def _get_field_by_name(self, key):
- return native_bt.field_class_structure_get_field_class_by_name(self._ptr, key)
-
- def _add_field(self, name, ptr):
- return native_bt.field_class_structure_append_member(self._ptr, name, ptr)
-
- def _at(self, index):
if index < 0 or index >= len(self):
raise IndexError
- ret, name, field_class_ptr = native_bt.field_class_structure_get_field_by_index(self._ptr, index)
- assert(ret == 0)
- return _create_from_ptr(field_class_ptr)
+ element_ptr = self._borrow_element_by_index(self._ptr, index)
+ assert element_ptr is not None
+ field_class_ptr = self._element_borrow_field_class(element_ptr)
-_StructureFieldClass.min_alignment = property(fset=_StructureFieldClass.alignment.fset)
-_StructureFieldClass.alignment = property(fget=_StructureFieldClass.alignment.fget)
+ return _create_field_class_from_ptr_and_get_ref(field_class_ptr)
-class _VariantFieldClassFieldIterator(collections.abc.Iterator):
- def __init__(self, variant_field_class):
- self._variant_field_class = variant_field_class
- self._at = 0
+class _StructureFieldClass(_FieldClass, _FieldContainer):
+ _NAME = 'Structure'
+ _borrow_element_by_index = staticmethod(native_bt.field_class_structure_borrow_member_by_index_const)
+ _borrow_element_by_name = staticmethod(native_bt.field_class_structure_borrow_member_by_name_const)
+ _element_get_name = staticmethod(native_bt.field_class_structure_member_get_name)
+ _element_borrow_field_class = staticmethod(native_bt.field_class_structure_member_borrow_field_class_const)
+ _get_element_count = staticmethod(native_bt.field_class_structure_get_member_count)
+ _append_element = staticmethod(native_bt.field_class_structure_append_member)
- def __next__(self):
- if self._at == len(self._variant_field_class):
- raise StopIteration
+ def append_member(self, name, field_class):
+ return self._append_element_common(name, field_class)
- ret, name, field_class_ptr = native_bt.field_class_variant_get_field_by_index(self._variant_field_class._ptr,
- self._at)
- assert(ret == 0)
- native_bt.put(field_class_ptr)
- self._at += 1
- return name
+ def member_at_index(self, index):
+ return self._at_index(index)
-class VariantFieldClass(_FieldClass, _FieldContainer, _AlignmentProp):
+class _VariantFieldClass(_FieldClass, _FieldContainer):
_NAME = 'Variant'
- _ITER_CLS = _VariantFieldClassFieldIterator
-
- def __init__(self, tag_name, tag_field_class=None):
- utils._check_str(tag_name)
+ _borrow_element_by_index = staticmethod(native_bt.field_class_variant_borrow_option_by_index_const)
+ _borrow_element_by_name = staticmethod(native_bt.field_class_variant_borrow_option_by_name_const)
+ _element_get_name = staticmethod(native_bt.field_class_variant_option_get_name)
+ _element_borrow_field_class = staticmethod(native_bt.field_class_variant_option_borrow_field_class_const)
+ _get_element_count = staticmethod(native_bt.field_class_variant_get_option_count)
+ _append_element = staticmethod(native_bt.field_class_variant_append_option)
- if tag_field_class is None:
- tag_fc_ptr = None
- else:
- utils._check_type(tag_field_class, EnumerationFieldClass)
- tag_fc_ptr = tag_field_class._ptr
+ def append_option(self, name, field_class):
+ return self._append_element_common(name, field_class)
- ptr = native_bt.field_class_variant_create(tag_fc_ptr,
- tag_name)
- self._check_create_status(ptr)
- super().__init__(ptr)
+ def option_at_index(self, index):
+ return self._at_index(index)
@property
- def tag_name(self):
- tag_name = native_bt.field_class_variant_get_tag_name(self._ptr)
- assert(tag_name is not None)
- return tag_name
-
- @tag_name.setter
- def tag_name(self, tag_name):
- utils._check_str(tag_name)
- ret = native_bt.field_class_variant_set_tag_name(self._ptr, tag_name)
- utils._handle_ret(ret, "cannot set variant field class object's tag name")
-
- @property
- def tag_field_class(self):
- fc_ptr = native_bt.field_class_variant_get_tag_type(self._ptr)
-
- if fc_ptr is None:
+ def selector_field_path(self):
+ ptr = native_bt.field_class_variant_borrow_selector_field_path_const(self._ptr)
+ if ptr is None:
return
- return _create_from_ptr(fc_ptr)
-
- def _count(self):
- return native_bt.field_class_variant_get_field_count(self._ptr)
-
- def _get_field_by_name(self, key):
- return native_bt.field_class_variant_get_field_class_by_name(self._ptr, key)
+ return bt2.field_path._FieldPath._create_from_ptr_and_get_ref(ptr)
- def _add_field(self, ptr, name):
- return native_bt.field_class_variant_add_field(self._ptr, ptr, name)
+ def _set_selector_field_class(self, selector_fc):
+ utils._check_type(selector_fc, bt2.field_class._EnumerationFieldClass)
+ ret = native_bt.field_class_variant_set_selector_field_class(self._ptr, selector_fc._ptr)
+ utils._handle_ret(ret, "cannot set variant selector field type")
- def _at(self, index):
- if index < 0 or index >= len(self):
- raise IndexError
+ _selector_field_class = property(fset=_set_selector_field_class)
- ret, name, field_class_ptr = native_bt.field_class_variant_get_field_by_index(self._ptr, index)
- assert(ret == 0)
- return _create_from_ptr(field_class_ptr)
+class _ArrayFieldClass(_FieldClass):
+ @property
+ def element_field_class(self):
+ elem_fc_ptr = native_bt.field_class_array_borrow_element_field_class_const(self._ptr)
+ return _create_field_class_from_ptr_and_get_ref(elem_fc_ptr)
-class ArrayFieldClass(_FieldClass):
- _NAME = 'Array'
-
- def __init__(self, element_field_class, length):
- utils._check_type(element_field_class, _FieldClass)
- utils._check_uint64(length)
- ptr = native_bt.field_class_array_create(element_field_class._ptr, length)
- self._check_create_status(ptr)
- super().__init__(ptr)
+class _StaticArrayFieldClass(_ArrayFieldClass):
@property
def length(self):
- length = native_bt.field_class_array_get_length(self._ptr)
- assert(length >= 0)
- return length
-
- @property
- def element_field_class(self):
- ptr = native_bt.field_class_array_get_element_type(self._ptr)
- assert(ptr)
- return _create_from_ptr(ptr)
+ return native_bt.field_class_static_array_get_length(self._ptr)
-class SequenceFieldClass(_FieldClass):
- _NAME = 'Sequence'
+class _DynamicArrayFieldClass(_ArrayFieldClass):
+ @property
+ def length_field_path(self):
+ ptr = native_bt.field_class_dynamic_array_borrow_length_field_path_const(self._ptr)
+ if ptr is None:
+ return
- def __init__(self, element_field_class, length_name):
- utils._check_type(element_field_class, _FieldClass)
- utils._check_str(length_name)
- ptr = native_bt.field_class_sequence_create(element_field_class._ptr,
- length_name)
- self._check_create_status(ptr)
- super().__init__(ptr)
+ return bt2.field_path._FieldPath._create_from_ptr_and_get_ref(ptr)
- @property
- def length_name(self):
- length_name = native_bt.field_class_sequence_get_length_field_name(self._ptr)
- assert(length_name is not None)
- return length_name
+ def _set_length_field_class(self, length_fc):
+ utils._check_type(length_fc, _UnsignedIntegerFieldClass)
+ ret = native_bt.field_class_dynamic_array_set_length_field_class(self._ptr, length_fc._ptr)
+ utils._handle_ret(ret, "cannot set dynamic array length field type")
- @property
- def element_field_class(self):
- ptr = native_bt.field_class_sequence_get_element_type(self._ptr)
- assert(ptr)
- return _create_from_ptr(ptr)
+ _length_field_class = property(fset=_set_length_field_class)
_FIELD_CLASS_TYPE_TO_OBJ = {
+ native_bt.FIELD_CLASS_TYPE_UNSIGNED_INTEGER: _UnsignedIntegerFieldClass,
+ native_bt.FIELD_CLASS_TYPE_SIGNED_INTEGER: _SignedIntegerFieldClass,
+ native_bt.FIELD_CLASS_TYPE_REAL: _RealFieldClass,
+ native_bt.FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION: _UnsignedEnumerationFieldClass,
+ native_bt.FIELD_CLASS_TYPE_SIGNED_ENUMERATION: _SignedEnumerationFieldClass,
+ native_bt.FIELD_CLASS_TYPE_STRING: _StringFieldClass,
native_bt.FIELD_CLASS_TYPE_STRUCTURE: _StructureFieldClass,
+ native_bt.FIELD_CLASS_TYPE_STATIC_ARRAY: _StaticArrayFieldClass,
+ native_bt.FIELD_CLASS_TYPE_DYNAMIC_ARRAY: _DynamicArrayFieldClass,
+ native_bt.FIELD_CLASS_TYPE_VARIANT: _VariantFieldClass,
}
projects / babeltrace.git / blobdiff