X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Fbindings%2Fpython%2Fbt2%2Fbt2%2Ftrace_class.py;h=3ae3addefbcb3126ee21d4baed643632d791e0f7;hb=cec0261d56a42e810f56b39fcefbe33987c8aab8;hp=9c8258429c55e2066c3ee5aa1a1fe918ee8f5228;hpb=26fc5aedf48df3f1654fe4d0b6ada1a10cd804f2;p=babeltrace.git diff --git a/src/bindings/python/bt2/bt2/trace_class.py b/src/bindings/python/bt2/bt2/trace_class.py index 9c825842..3ae3adde 100644 --- a/src/bindings/python/bt2/bt2/trace_class.py +++ b/src/bindings/python/bt2/bt2/trace_class.py @@ -26,31 +26,18 @@ __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 trace as bt2_trace +from bt2 import trace_class as bt2_trace_class import collections.abc import functools -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) + trace_class = bt2_trace_class._TraceClass._create_from_ptr_and_get_ref( + trace_class_ptr + ) user_listener(trace_class) @@ -64,9 +51,9 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): trace_ptr = native_bt.trace_create(self._ptr) if trace_ptr is None: - raise bt2.CreationError('cannot create trace class object') + raise bt2._MemoryError('cannot create trace class object') - trace = bt2.trace._Trace._create_from_ptr(trace_ptr) + trace = bt2_trace._Trace._create_from_ptr(trace_ptr) if name is not None: trace._name = name @@ -96,11 +83,13 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): if sc_ptr is None: raise KeyError(key) - return bt2.stream_class._StreamClass._create_from_ptr_and_get_ref(sc_ptr) + return bt2_stream_class._StreamClass._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 = native_bt.trace_class_borrow_stream_class_by_index_const( + self._ptr, idx + ) assert sc_ptr is not None id = native_bt.stream_class_get_id(sc_ptr) @@ -108,34 +97,41 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): 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): + 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, + ): 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 @@ -150,9 +146,11 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): # `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 @@ -162,10 +160,12 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): 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 @@ -174,20 +174,31 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): 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)) - def _create_integer_field_class(self, create_func, py_cls, type_name, field_value_range, preferred_display_base): + def create_bool_field_class(self): + field_class_ptr = native_bt.field_class_bool_create(self._ptr) + self._check_field_class_create_status(field_class_ptr, 'boolean') + + return bt2_field_class._BoolFieldClass._create_from_ptr(field_class_ptr) + + 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) + self._check_field_class_create_status(field_class_ptr, type_name) field_class = py_cls._create_from_ptr(field_class_ptr) @@ -199,31 +210,55 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): 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_signed_integer_field_class( + self, field_value_range=None, preferred_display_base=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, + ) + + 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_integer_unsigned_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_enumeration_signed_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_enumeration_unsigned_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') + self._check_field_class_create_status(field_class_ptr, 'real') - field_class = bt2.field_class._RealFieldClass._create_from_ptr(field_class_ptr) + field_class = bt2_field_class._RealFieldClass._create_from_ptr(field_class_ptr) field_class._is_single_precision = is_single_precision @@ -231,44 +266,63 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): 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') + self._check_field_class_create_status(field_class_ptr, 'structure') - return bt2.field_class._StructureFieldClass._create_from_ptr(field_class_ptr) + 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') + self._check_field_class_create_status(field_class_ptr, 'string') - return bt2.field_class._StringFieldClass._create_from_ptr(field_class_ptr) + 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_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') + ptr = native_bt.field_class_array_static_create(self._ptr, elem_fc._ptr, length) + self._check_field_class_create_status(ptr, 'static array') - return bt2.field_class._StaticArrayFieldClass._create_from_ptr_and_get_ref(ptr) + 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) + 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') + return bt2_field_class._DynamicArrayFieldClass._create_from_ptr(ptr) + + def create_option_field_class(self, content_fc, selector_fc=None): + utils._check_type(content_fc, bt2_field_class._FieldClass) + + selector_fc_ptr = None + + if selector_fc is not None: + utils._check_type(selector_fc, bt2_field_class._BoolFieldClass) + selector_fc_ptr = selector_fc._ptr - return obj + ptr = native_bt.field_class_option_create( + self._ptr, content_fc._ptr, selector_fc_ptr + ) + self._check_field_class_create_status(ptr, 'option') + return bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr) 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) + selector_fc_ptr = None if selector_fc is not None: - obj._selector_field_class = selector_fc + utils._check_type(selector_fc, bt2_field_class._IntegerFieldClass) + selector_fc_ptr = selector_fc._ptr - return obj + ptr = native_bt.field_class_variant_create(self._ptr, selector_fc_ptr) + self._check_field_class_create_status(ptr, 'variant') + return bt2_field_class._create_field_class_from_ptr_and_get_ref(ptr) # Add a listener to be called when the trace class is destroyed. @@ -278,11 +332,13 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): 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_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') + status, listener_id = fn(self._ptr, listener_from_native) + utils._handle_func_status( + status, 'cannot add destruction listener to trace class object' + ) - return bt2._ListenerHandle(listener_id, self) + return utils._ListenerHandle(listener_id, self)