-# The MIT License (MIT)
+# SPDX-License-Identifier: MIT
#
# Copyright (c) 2017 Philippe Proulx <pproulx@efficios.com>
# Copyright (c) 2018 Francis Deslauriers <francis.deslauriers@efficios.com>
# Copyright (c) 2019 Simon Marchi <simon.marchi@efficios.com>
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-__all__ = ['_TraceClass']
-
-import bt2
from bt2 import native_bt, utils, object
-import bt2.stream_class
+from bt2 import stream_class as bt2_stream_class
+from bt2 import field_class as bt2_field_class
+from bt2 import integer_range_set as bt2_integer_range_set
+from bt2 import trace as bt2_trace
+from bt2 import value as bt2_value
import collections.abc
import functools
+import bt2
-class _StreamClassIterator(collections.abc.Iterator):
- def __init__(self, trace_class):
- self._trace_class = trace_class
- self._at = 0
-
- def __next__(self):
- if self._at == len(self._trace_class):
- raise StopIteration
-
- borrow_stream_class_fn = native_bt.trace_class_borrow_stream_class_by_index_const
- sc_ptr = borrow_stream_class_fn(self._trace_class._ptr, self._at)
- assert sc_ptr
- id = native_bt.stream_class_get_id(sc_ptr)
- assert id >= 0
- self._at += 1
- return id
-
-
-def _trace_class_destruction_listener_from_native(user_listener, trace_class_ptr):
- trace_class = bt2.trace_class._TraceClass._create_from_ptr_and_get_ref(trace_class_ptr)
+def _trace_class_destruction_listener_from_native(
+ user_listener, handle, trace_class_ptr
+):
+ trace_class = _TraceClass._create_from_ptr_and_get_ref(trace_class_ptr)
user_listener(trace_class)
+ handle._invalidate()
-class _TraceClass(object._SharedObject, collections.abc.Mapping):
+class _TraceClassConst(object._SharedObject, collections.abc.Mapping):
_get_ref = staticmethod(native_bt.trace_class_get_ref)
_put_ref = staticmethod(native_bt.trace_class_put_ref)
+ _borrow_stream_class_ptr_by_index = staticmethod(
+ native_bt.trace_class_borrow_stream_class_by_index_const
+ )
+ _borrow_stream_class_ptr_by_id = staticmethod(
+ native_bt.trace_class_borrow_stream_class_by_id_const
+ )
+ _borrow_user_attributes_ptr = staticmethod(
+ native_bt.trace_class_borrow_user_attributes_const
+ )
+ _stream_class_pycls = bt2_stream_class._StreamClassConst
+ _create_value_from_ptr_and_get_ref = staticmethod(
+ bt2_value._create_from_const_ptr_and_get_ref
+ )
- # Instantiate a trace of this class.
-
- def __call__(self, name=None, uuid=None, env=None):
- trace_ptr = native_bt.trace_create(self._ptr)
-
- if trace_ptr is None:
- raise bt2.CreationError('cannot create trace class object')
-
- trace = bt2.trace._Trace._create_from_ptr(trace_ptr)
-
- if name is not None:
- trace._name = name
-
- if uuid is not None:
- trace._uuid = uuid
-
- if env is not None:
- for key, value in env.items():
- trace.env[key] = value
-
- return trace
+ @property
+ def user_attributes(self):
+ ptr = self._borrow_user_attributes_ptr(self._ptr)
+ assert ptr is not None
+ return self._create_value_from_ptr_and_get_ref(ptr)
# Number of stream classes in this trace class.
def __getitem__(self, key):
utils._check_uint64(key)
- sc_ptr = native_bt.trace_class_borrow_stream_class_by_id_const(self._ptr, key)
+ sc_ptr = self._borrow_stream_class_ptr_by_id(self._ptr, key)
if sc_ptr is None:
raise KeyError(key)
- return bt2.stream_class._StreamClass._create_from_ptr_and_get_ref(sc_ptr)
+ return self._stream_class_pycls._create_from_ptr_and_get_ref(sc_ptr)
def __iter__(self):
for idx in range(len(self)):
- sc_ptr = native_bt.trace_class_borrow_stream_class_by_index_const(self._ptr, idx)
+ sc_ptr = self._borrow_stream_class_ptr_by_index(self._ptr, idx)
assert sc_ptr is not None
id = native_bt.stream_class_get_id(sc_ptr)
yield id
- def create_stream_class(self, id=None,
- name=None,
- packet_context_field_class=None,
- event_common_context_field_class=None,
- default_clock_class=None,
- assigns_automatic_event_class_id=True,
- assigns_automatic_stream_id=True,
- supports_packets=False,
- packets_have_beginning_default_clock_snapshot=False,
- packets_have_end_default_clock_snapshot=False,
- supports_discarded_events=False,
- discarded_events_have_default_clock_snapshots=False,
- supports_discarded_packets=False,
- discarded_packets_have_default_clock_snapshots=False):
+ @property
+ def assigns_automatic_stream_class_id(self):
+ return native_bt.trace_class_assigns_automatic_stream_class_id(self._ptr)
+
+ # Add a listener to be called when the trace class is destroyed.
+
+ def add_destruction_listener(self, listener):
+
+ if not callable(listener):
+ raise TypeError("'listener' parameter is not callable")
+
+ handle = utils._ListenerHandle(self.addr)
+
+ listener_from_native = functools.partial(
+ _trace_class_destruction_listener_from_native, listener, handle
+ )
+
+ fn = native_bt.bt2_trace_class_add_destruction_listener
+ status, listener_id = fn(self._ptr, listener_from_native)
+ utils._handle_func_status(
+ status, 'cannot add destruction listener to trace class object'
+ )
+
+ handle._set_listener_id(listener_id)
+
+ return handle
+
+ def remove_destruction_listener(self, listener_handle):
+ utils._check_type(listener_handle, utils._ListenerHandle)
+
+ if listener_handle._addr != self.addr:
+ raise ValueError(
+ 'This trace class destruction listener does not match the trace class object.'
+ )
+
+ if listener_handle._listener_id is None:
+ raise ValueError(
+ 'This trace class destruction listener was already removed.'
+ )
+
+ status = native_bt.trace_class_remove_destruction_listener(
+ self._ptr, listener_handle._listener_id
+ )
+ utils._handle_func_status(status)
+ listener_handle._invalidate()
+
+
+class _TraceClass(_TraceClassConst):
+ _borrow_stream_class_ptr_by_index = staticmethod(
+ native_bt.trace_class_borrow_stream_class_by_index
+ )
+ _borrow_stream_class_ptr_by_id = staticmethod(
+ native_bt.trace_class_borrow_stream_class_by_id
+ )
+ _borrow_user_attributes_ptr = staticmethod(
+ native_bt.trace_class_borrow_user_attributes
+ )
+ _stream_class_pycls = bt2_stream_class._StreamClass
+ _create_value_from_ptr_and_get_ref = staticmethod(
+ bt2_value._create_from_ptr_and_get_ref
+ )
+
+ # Instantiate a trace of this class.
+
+ def __call__(self, name=None, user_attributes=None, uuid=None, environment=None):
+ trace_ptr = native_bt.trace_create(self._ptr)
+
+ if trace_ptr is None:
+ raise bt2._MemoryError('cannot create trace class object')
+
+ trace = bt2_trace._Trace._create_from_ptr(trace_ptr)
+
+ if name is not None:
+ trace._name = name
+
+ if user_attributes is not None:
+ trace._user_attributes = user_attributes
+
+ if uuid is not None:
+ trace._uuid = uuid
+
+ if environment is not None:
+ for key, value in environment.items():
+ trace.environment[key] = value
+
+ return trace
+
+ def create_stream_class(
+ self,
+ id=None,
+ name=None,
+ user_attributes=None,
+ packet_context_field_class=None,
+ event_common_context_field_class=None,
+ default_clock_class=None,
+ assigns_automatic_event_class_id=True,
+ assigns_automatic_stream_id=True,
+ supports_packets=False,
+ packets_have_beginning_default_clock_snapshot=False,
+ packets_have_end_default_clock_snapshot=False,
+ supports_discarded_events=False,
+ discarded_events_have_default_clock_snapshots=False,
+ supports_discarded_packets=False,
+ discarded_packets_have_default_clock_snapshots=False,
+ ):
+ # Validate parameters before we create the object.
+ bt2_stream_class._StreamClass._validate_create_params(
+ name,
+ user_attributes,
+ packet_context_field_class,
+ event_common_context_field_class,
+ default_clock_class,
+ assigns_automatic_event_class_id,
+ assigns_automatic_stream_id,
+ supports_packets,
+ packets_have_beginning_default_clock_snapshot,
+ packets_have_end_default_clock_snapshot,
+ supports_discarded_events,
+ discarded_events_have_default_clock_snapshots,
+ supports_discarded_packets,
+ discarded_packets_have_default_clock_snapshots,
+ )
if self.assigns_automatic_stream_class_id:
if id is not None:
- raise ValueError('id provided, but trace class assigns automatic stream class ids')
+ raise ValueError(
+ 'id provided, but trace class assigns automatic stream class ids'
+ )
sc_ptr = native_bt.stream_class_create(self._ptr)
else:
if id is None:
- raise ValueError('id not provided, but trace class does not assign automatic stream class ids')
+ raise ValueError(
+ 'id not provided, but trace class does not assign automatic stream class ids'
+ )
utils._check_uint64(id)
sc_ptr = native_bt.stream_class_create_with_id(self._ptr, id)
- sc = bt2.stream_class._StreamClass._create_from_ptr(sc_ptr)
+ sc = bt2_stream_class._StreamClass._create_from_ptr(sc_ptr)
if name is not None:
sc._name = name
+ if user_attributes is not None:
+ sc._user_attributes = user_attributes
+
if event_common_context_field_class is not None:
sc._event_common_context_field_class = event_common_context_field_class
# `packets_have_beginning_default_clock_snapshot` or
# `packets_have_end_default_clock_snapshot` is true, then this
# stream class needs a default clock class already.
- sc._set_supports_packets(supports_packets,
- packets_have_beginning_default_clock_snapshot,
- packets_have_end_default_clock_snapshot)
+ sc._set_supports_packets(
+ supports_packets,
+ packets_have_beginning_default_clock_snapshot,
+ packets_have_end_default_clock_snapshot,
+ )
# call after sc._set_supports_packets() because, if
# `packet_context_field_class` is not `None`, then this stream
sc._assigns_automatic_event_class_id = assigns_automatic_event_class_id
sc._assigns_automatic_stream_id = assigns_automatic_stream_id
- sc._set_supports_discarded_events(supports_discarded_events,
- discarded_events_have_default_clock_snapshots)
- sc._set_supports_discarded_packets(supports_discarded_packets,
- discarded_packets_have_default_clock_snapshots)
+ sc._set_supports_discarded_events(
+ supports_discarded_events, discarded_events_have_default_clock_snapshots
+ )
+ sc._set_supports_discarded_packets(
+ supports_discarded_packets, discarded_packets_have_default_clock_snapshots
+ )
return sc
- @property
- def assigns_automatic_stream_class_id(self):
- return native_bt.trace_class_assigns_automatic_stream_class_id(self._ptr)
+ def _user_attributes(self, user_attributes):
+ value = bt2_value.create_value(user_attributes)
+ utils._check_type(value, bt2_value.MapValue)
+ native_bt.trace_class_set_user_attributes(self._ptr, value._ptr)
+
+ _user_attributes = property(fset=_user_attributes)
def _assigns_automatic_stream_class_id(self, auto_id):
utils._check_bool(auto_id)
- return native_bt.trace_class_set_assigns_automatic_stream_class_id(self._ptr, auto_id)
+ return native_bt.trace_class_set_assigns_automatic_stream_class_id(
+ self._ptr, auto_id
+ )
- _assigns_automatic_stream_class_id = property(fset=_assigns_automatic_stream_class_id)
+ _assigns_automatic_stream_class_id = property(
+ fset=_assigns_automatic_stream_class_id
+ )
# Field class creation methods.
- def _check_create_status(self, ptr, type_name):
+ def _check_field_class_create_status(self, ptr, type_name):
if ptr is None:
- raise bt2.CreationError(
- 'cannot create {} field class'.format(type_name))
+ raise bt2._MemoryError('cannot create {} field class'.format(type_name))
+
+ @staticmethod
+ def _set_field_class_user_attrs(fc, user_attributes):
+ if user_attributes is not None:
+ fc._user_attributes = user_attributes
- def _create_integer_field_class(self, create_func, py_cls, type_name, field_value_range, preferred_display_base):
+ def create_bool_field_class(self, user_attributes=None):
+ field_class_ptr = native_bt.field_class_bool_create(self._ptr)
+ self._check_field_class_create_status(field_class_ptr, 'boolean')
+ fc = bt2_field_class._BoolFieldClass._create_from_ptr(field_class_ptr)
+ self._set_field_class_user_attrs(fc, user_attributes)
+ return fc
+
+ def create_bit_array_field_class(self, length, user_attributes=None):
+ utils._check_uint64(length)
+
+ if length < 1 or length > 64:
+ raise ValueError(
+ 'invalid length {}: expecting a value in the [1, 64] range'.format(
+ length
+ )
+ )
+
+ field_class_ptr = native_bt.field_class_bit_array_create(self._ptr, length)
+ self._check_field_class_create_status(field_class_ptr, 'bit array')
+ fc = bt2_field_class._BitArrayFieldClass._create_from_ptr(field_class_ptr)
+ self._set_field_class_user_attrs(fc, user_attributes)
+ return fc
+
+ def _create_integer_field_class(
+ self,
+ create_func,
+ py_cls,
+ type_name,
+ field_value_range,
+ preferred_display_base,
+ user_attributes,
+ ):
field_class_ptr = create_func(self._ptr)
- self._check_create_status(field_class_ptr, type_name)
+ self._check_field_class_create_status(field_class_ptr, type_name)
field_class = py_cls._create_from_ptr(field_class_ptr)
if preferred_display_base is not None:
field_class._preferred_display_base = preferred_display_base
+ self._set_field_class_user_attrs(field_class, user_attributes)
return field_class
- def create_signed_integer_field_class(self, field_value_range=None, preferred_display_base=None):
- return self._create_integer_field_class(native_bt.field_class_signed_integer_create,
- bt2.field_class._SignedIntegerFieldClass,
- 'signed integer', field_value_range, preferred_display_base)
-
- def create_unsigned_integer_field_class(self, field_value_range=None, preferred_display_base=None):
- return self._create_integer_field_class(native_bt.field_class_unsigned_integer_create,
- bt2.field_class._UnsignedIntegerFieldClass,
- 'unsigned integer', field_value_range, preferred_display_base)
-
- def create_signed_enumeration_field_class(self, field_value_range=None, preferred_display_base=None):
- return self._create_integer_field_class(native_bt.field_class_signed_enumeration_create,
- bt2.field_class._SignedEnumerationFieldClass,
- 'signed enumeration', field_value_range, preferred_display_base)
+ def create_signed_integer_field_class(
+ self, field_value_range=None, preferred_display_base=None, user_attributes=None
+ ):
+ return self._create_integer_field_class(
+ native_bt.field_class_integer_signed_create,
+ bt2_field_class._SignedIntegerFieldClass,
+ 'signed integer',
+ field_value_range,
+ preferred_display_base,
+ user_attributes,
+ )
+
+ def create_unsigned_integer_field_class(
+ self, field_value_range=None, preferred_display_base=None, user_attributes=None
+ ):
+ return self._create_integer_field_class(
+ native_bt.field_class_integer_unsigned_create,
+ bt2_field_class._UnsignedIntegerFieldClass,
+ 'unsigned integer',
+ field_value_range,
+ preferred_display_base,
+ user_attributes,
+ )
+
+ def create_signed_enumeration_field_class(
+ self, field_value_range=None, preferred_display_base=None, user_attributes=None
+ ):
+ return self._create_integer_field_class(
+ native_bt.field_class_enumeration_signed_create,
+ bt2_field_class._SignedEnumerationFieldClass,
+ 'signed enumeration',
+ field_value_range,
+ preferred_display_base,
+ user_attributes,
+ )
+
+ def create_unsigned_enumeration_field_class(
+ self, field_value_range=None, preferred_display_base=None, user_attributes=None
+ ):
+ return self._create_integer_field_class(
+ native_bt.field_class_enumeration_unsigned_create,
+ bt2_field_class._UnsignedEnumerationFieldClass,
+ 'unsigned enumeration',
+ field_value_range,
+ preferred_display_base,
+ user_attributes,
+ )
+
+ def create_single_precision_real_field_class(self, user_attributes=None):
+ field_class_ptr = native_bt.field_class_real_single_precision_create(self._ptr)
+ self._check_field_class_create_status(field_class_ptr, 'single-precision real')
+
+ field_class = bt2_field_class._SinglePrecisionRealFieldClass._create_from_ptr(
+ field_class_ptr
+ )
+
+ self._set_field_class_user_attrs(field_class, user_attributes)
- def create_unsigned_enumeration_field_class(self, field_value_range=None, preferred_display_base=None):
- return self._create_integer_field_class(native_bt.field_class_unsigned_enumeration_create,
- bt2.field_class._UnsignedEnumerationFieldClass,
- 'unsigned enumeration', field_value_range, preferred_display_base)
+ return field_class
- def create_real_field_class(self, is_single_precision=False):
- field_class_ptr = native_bt.field_class_real_create(self._ptr)
- self._check_create_status(field_class_ptr, 'real')
+ def create_double_precision_real_field_class(self, user_attributes=None):
+ field_class_ptr = native_bt.field_class_real_double_precision_create(self._ptr)
+ self._check_field_class_create_status(field_class_ptr, 'double-precision real')
- field_class = bt2.field_class._RealFieldClass._create_from_ptr(field_class_ptr)
+ field_class = bt2_field_class._DoublePrecisionRealFieldClass._create_from_ptr(
+ field_class_ptr
+ )
- field_class._is_single_precision = is_single_precision
+ self._set_field_class_user_attrs(field_class, user_attributes)
return field_class
- def create_structure_field_class(self):
+ def create_structure_field_class(self, user_attributes=None):
field_class_ptr = native_bt.field_class_structure_create(self._ptr)
- self._check_create_status(field_class_ptr, 'structure')
-
- return bt2.field_class._StructureFieldClass._create_from_ptr(field_class_ptr)
+ self._check_field_class_create_status(field_class_ptr, 'structure')
+ fc = bt2_field_class._StructureFieldClass._create_from_ptr(field_class_ptr)
+ self._set_field_class_user_attrs(fc, user_attributes)
+ return fc
- def create_string_field_class(self):
+ def create_string_field_class(self, user_attributes=None):
field_class_ptr = native_bt.field_class_string_create(self._ptr)
- self._check_create_status(field_class_ptr, 'string')
-
- return bt2.field_class._StringFieldClass._create_from_ptr(field_class_ptr)
+ self._check_field_class_create_status(field_class_ptr, 'string')
+ fc = bt2_field_class._StringFieldClass._create_from_ptr(field_class_ptr)
+ self._set_field_class_user_attrs(fc, user_attributes)
+ return fc
- def create_static_array_field_class(self, elem_fc, length):
- utils._check_type(elem_fc, bt2.field_class._FieldClass)
+ def create_static_array_field_class(self, elem_fc, length, user_attributes=None):
+ utils._check_type(elem_fc, bt2_field_class._FieldClass)
utils._check_uint64(length)
- ptr = native_bt.field_class_static_array_create(self._ptr, elem_fc._ptr, length)
- self._check_create_status(ptr, 'static array')
-
- return bt2.field_class._StaticArrayFieldClass._create_from_ptr_and_get_ref(ptr)
-
- def create_dynamic_array_field_class(self, elem_fc, length_fc=None):
- utils._check_type(elem_fc, bt2.field_class._FieldClass)
- ptr = native_bt.field_class_dynamic_array_create(self._ptr, elem_fc._ptr)
- self._check_create_status(ptr, 'dynamic array')
- obj = bt2.field_class._DynamicArrayFieldClass._create_from_ptr(ptr)
+ ptr = native_bt.field_class_array_static_create(self._ptr, elem_fc._ptr, length)
+ self._check_field_class_create_status(ptr, 'static array')
+ fc = bt2_field_class._StaticArrayFieldClass._create_from_ptr_and_get_ref(ptr)
+ self._set_field_class_user_attrs(fc, user_attributes)
+ return fc
+
+ def create_dynamic_array_field_class(
+ self, elem_fc, length_fc=None, user_attributes=None
+ ):
+ utils._check_type(elem_fc, bt2_field_class._FieldClass)
+ length_fc_ptr = None
if length_fc is not None:
- obj._length_field_class = length_fc
+ utils._check_type(length_fc, bt2_field_class._UnsignedIntegerFieldClass)
+ length_fc_ptr = length_fc._ptr
+
+ ptr = native_bt.field_class_array_dynamic_create(
+ self._ptr, elem_fc._ptr, length_fc_ptr
+ )
+ self._check_field_class_create_status(ptr, 'dynamic array')
+ fc = bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr)
+ self._set_field_class_user_attrs(fc, user_attributes)
+ return fc
+
+ def create_option_without_selector_field_class(
+ self, content_fc, user_attributes=None
+ ):
+ utils._check_type(content_fc, bt2_field_class._FieldClass)
+ ptr = native_bt.field_class_option_without_selector_create(
+ self._ptr, content_fc._ptr
+ )
+ self._check_field_class_create_status(ptr, 'option')
+ fc = bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr)
+ self._set_field_class_user_attrs(fc, user_attributes)
+ return fc
+
+ def create_option_with_bool_selector_field_class(
+ self, content_fc, selector_fc, selector_is_reversed=False, user_attributes=None
+ ):
+ utils._check_type(content_fc, bt2_field_class._FieldClass)
+ utils._check_bool(selector_is_reversed)
+ utils._check_type(selector_fc, bt2_field_class._BoolFieldClass)
+ ptr = native_bt.field_class_option_with_selector_field_bool_create(
+ self._ptr, content_fc._ptr, selector_fc._ptr
+ )
+ self._check_field_class_create_status(ptr, 'option')
+ fc = bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr)
+ self._set_field_class_user_attrs(fc, user_attributes)
+ fc._selector_is_reversed = selector_is_reversed
+ return fc
+
+ def create_option_with_integer_selector_field_class(
+ self, content_fc, selector_fc, ranges, user_attributes=None
+ ):
+ utils._check_type(content_fc, bt2_field_class._FieldClass)
+ utils._check_type(selector_fc, bt2_field_class._IntegerFieldClass)
+
+ if len(ranges) == 0:
+ raise ValueError('integer range set is empty')
+
+ if isinstance(selector_fc, bt2_field_class._UnsignedIntegerFieldClass):
+ utils._check_type(ranges, bt2_integer_range_set.UnsignedIntegerRangeSet)
+ ptr = native_bt.field_class_option_with_selector_field_integer_unsigned_create(
+ self._ptr, content_fc._ptr, selector_fc._ptr, ranges._ptr
+ )
+ else:
+ utils._check_type(ranges, bt2_integer_range_set.SignedIntegerRangeSet)
+ ptr = native_bt.field_class_option_with_selector_field_integer_signed_create(
+ self._ptr, content_fc._ptr, selector_fc._ptr, ranges._ptr
+ )
- return obj
+ self._check_field_class_create_status(ptr, 'option')
+ fc = bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr)
+ self._set_field_class_user_attrs(fc, user_attributes)
+ return fc
- def create_variant_field_class(self, selector_fc=None):
- ptr = native_bt.field_class_variant_create(self._ptr)
- self._check_create_status(ptr, 'variant')
- obj = bt2.field_class._VariantFieldClass._create_from_ptr(ptr)
+ def create_variant_field_class(self, selector_fc=None, user_attributes=None):
+ selector_fc_ptr = None
if selector_fc is not None:
- obj._selector_field_class = selector_fc
-
- return obj
-
- # Add a listener to be called when the trace class is destroyed.
-
- def add_destruction_listener(self, listener):
-
- if not callable(listener):
- raise TypeError("'listener' parameter is not callable")
-
- fn = native_bt.bt2_trace_class_add_destruction_listener
- listener_from_native = functools.partial(_trace_class_destruction_listener_from_native,
- listener)
-
- listener_id = fn(self._ptr, listener_from_native)
- if listener_id is None:
- utils._raise_bt2_error('cannot add destruction listener to trace class object')
-
- return bt2._ListenerHandle(listener_id, self)
+ utils._check_type(selector_fc, bt2_field_class._IntegerFieldClass)
+ selector_fc_ptr = selector_fc._ptr
+
+ ptr = native_bt.field_class_variant_create(self._ptr, selector_fc_ptr)
+ self._check_field_class_create_status(ptr, 'variant')
+ fc = bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr)
+ self._set_field_class_user_attrs(fc, user_attributes)
+ return fc
projects / babeltrace.git / blobdiff