_uuid = property(fset=_uuid)
+ # Instantiate a trace of this class.
+
+ def __call__(self, name=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
+
+ return trace
+
# Number of stream classes in this trace class.
def __len__(self):
def env(self):
return _TraceClassEnv(self)
- def create_stream_class(self, id=None):
+ 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,
+ packets_have_default_beginning_clock_snapshot=False,
+ packets_have_default_end_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):
if self.assigns_automatic_stream_class_id:
if id is not None:
- raise bt2.CreationError('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 bt2.CreationError('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)
- return bt2.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 packet_context_field_class is not None:
+ sc._packet_context_field_class = packet_context_field_class
+
+ if event_common_context_field_class is not None:
+ sc._event_common_context_field_class = event_common_context_field_class
+
+ if default_clock_class is not None:
+ sc._default_clock_class = default_clock_class
+
+ sc._assigns_automatic_event_class_id = assigns_automatic_event_class_id
+ sc._assigns_automatic_stream_id = assigns_automatic_stream_id
+ sc._packets_have_default_beginning_clock_snapshot = packets_have_default_beginning_clock_snapshot
+ sc._packets_have_default_end_clock_snapshot = packets_have_default_end_clock_snapshot
+ 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):
_assigns_automatic_stream_class_id = property(fset=_assigns_automatic_stream_class_id)
+ # Field class creation methods.
+
+ def _check_create_status(self, ptr, type_name):
+ if ptr is None:
+ raise bt2.CreationError(
+ 'cannot create {} field class'.format(type_name))
+
+ def _create_integer_field_class(self, create_func, py_cls, type_name, field_value_range, preferred_display_base):
+ field_class_ptr = create_func(self._ptr)
+ self._check_create_status(field_class_ptr, type_name)
+
+ field_class = py_cls._create_from_ptr(field_class_ptr)
+
+ if field_value_range is not None:
+ field_class._field_value_range = field_value_range
+
+ if preferred_display_base is not None:
+ field_class._preferred_display_base = preferred_display_base
+
+ 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_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)
+
+ 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')
+
+ field_class = bt2.field_class._RealFieldClass._create_from_ptr(field_class_ptr)
+
+ field_class._is_single_precision = is_single_precision
+
+ return field_class
+
+ def create_structure_field_class(self):
+ 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)
+
+ def create_string_field_class(self):
+ 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)
+
+ def create_static_array_field_class(self, elem_fc, length):
+ 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)
+
+ if length_fc is not None:
+ obj._length_field_class = length_fc
+
+ return obj
+
+ 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)
+
+ 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):
projects / babeltrace.git / blobdiff