X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bindings%2Fpython%2Fbt2%2Fbt2%2Ftrace_class.py;h=a28a20ea91c0e1a34061c081869a27d9e0bd7794;hb=2e90378a2b94006e2743b06e7fe7a1f0e691a56e;hp=4ee7702fba5d236a4f1d226a67c8f9dd78a2d01f;hpb=8c2367b884576ed438bc2e06cfc9205b2436838d;p=babeltrace.git diff --git a/bindings/python/bt2/bt2/trace_class.py b/bindings/python/bt2/bt2/trace_class.py index 4ee7702f..a28a20ea 100644 --- a/bindings/python/bt2/bt2/trace_class.py +++ b/bindings/python/bt2/bt2/trace_class.py @@ -165,24 +165,53 @@ class TraceClass(object._SharedObject, collections.abc.Mapping): return _TraceClassEnv(self) def create_stream_class(self, id=None, - assigns_automatic_stream_id=True): + 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) sc = bt2.stream_class.StreamClass._create_from_ptr(sc_ptr) - sc._assigns_automatic_stream_id = assigns_automatic_stream_id + 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 @@ -195,6 +224,98 @@ class TraceClass(object._SharedObject, collections.abc.Mapping): _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):