X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Fbindings%2Fpython%2Fbt2%2Fbt2%2Ftrace_class.py;h=f66f385527934d5348e8e83ed9aa3730396db293;hb=f5567ea88d172767b34373bc6e402da8bfd85ef8;hp=1ec2a5055e120f9fafac87029667a8038615f245;hpb=5783664e46332216fd38a7b287258a7c9543af57;p=babeltrace.git diff --git a/src/bindings/python/bt2/bt2/trace_class.py b/src/bindings/python/bt2/bt2/trace_class.py index 1ec2a505..f66f3855 100644 --- a/src/bindings/python/bt2/bt2/trace_class.py +++ b/src/bindings/python/bt2/bt2/trace_class.py @@ -1,75 +1,50 @@ -# The MIT License (MIT) +# SPDX-License-Identifier: MIT # # Copyright (c) 2017 Philippe Proulx # Copyright (c) 2018 Francis Deslauriers # Copyright (c) 2019 Simon Marchi -# -# 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 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 trace_class as bt2_trace_class from bt2 import value as bt2_value import collections.abc import functools +import bt2 -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, user_attributes=None, uuid=None, env=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 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. @@ -83,17 +58,15 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): 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) @@ -101,6 +74,93 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): yield id + @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, @@ -119,18 +179,35 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): 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' + "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' + "id not provided, but trace class does not assign automatic stream class ids" ) utils._check_uint64(id) @@ -176,12 +253,6 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): ) return sc - @property - def user_attributes(self): - ptr = native_bt.trace_class_borrow_user_attributes(self._ptr) - assert ptr is not None - return bt2_value._create_from_ptr_and_get_ref(ptr) - def _user_attributes(self, user_attributes): value = bt2_value.create_value(user_attributes) utils._check_type(value, bt2_value.MapValue) @@ -189,10 +260,6 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): _user_attributes = property(fset=_user_attributes) - @property - def assigns_automatic_stream_class_id(self): - return native_bt.trace_class_assigns_automatic_stream_class_id(self._ptr) - 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( @@ -207,7 +274,7 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): def _check_field_class_create_status(self, ptr, type_name): if ptr is None: - raise bt2._MemoryError('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): @@ -216,7 +283,7 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): 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') + 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 @@ -226,13 +293,13 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): if length < 1 or length > 64: raise ValueError( - 'invalid length {}: expecting a value in the [1, 64] range'.format( + "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') + 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 @@ -266,7 +333,7 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): return self._create_integer_field_class( native_bt.field_class_integer_signed_create, bt2_field_class._SignedIntegerFieldClass, - 'signed integer', + "signed integer", field_value_range, preferred_display_base, user_attributes, @@ -278,7 +345,7 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): return self._create_integer_field_class( native_bt.field_class_integer_unsigned_create, bt2_field_class._UnsignedIntegerFieldClass, - 'unsigned integer', + "unsigned integer", field_value_range, preferred_display_base, user_attributes, @@ -290,7 +357,7 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): return self._create_integer_field_class( native_bt.field_class_enumeration_signed_create, bt2_field_class._SignedEnumerationFieldClass, - 'signed enumeration', + "signed enumeration", field_value_range, preferred_display_base, user_attributes, @@ -302,33 +369,46 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): return self._create_integer_field_class( native_bt.field_class_enumeration_unsigned_create, bt2_field_class._UnsignedEnumerationFieldClass, - 'unsigned enumeration', + "unsigned enumeration", field_value_range, preferred_display_base, user_attributes, ) - def create_real_field_class(self, is_single_precision=False, user_attributes=None): - field_class_ptr = native_bt.field_class_real_create(self._ptr) - self._check_field_class_create_status(field_class_ptr, 'real') + 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) + + return field_class + + 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, user_attributes=None): field_class_ptr = native_bt.field_class_structure_create(self._ptr) - self._check_field_class_create_status(field_class_ptr, 'structure') + 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, user_attributes=None): field_class_ptr = native_bt.field_class_string_create(self._ptr) - self._check_field_class_create_status(field_class_ptr, 'string') + 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 @@ -337,8 +417,8 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): utils._check_type(elem_fc, bt2_field_class._FieldClass) utils._check_uint64(length) 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._check_field_class_create_status(ptr, "static array") + fc = bt2_field_class._StaticArrayFieldClass._create_from_ptr(ptr) self._set_field_class_user_attrs(fc, user_attributes) return fc @@ -355,27 +435,62 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): 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._DynamicArrayFieldClass._create_from_ptr(ptr) + self._check_field_class_create_status(ptr, "dynamic array") + fc = bt2_field_class._obj_type_from_field_class_ptr(ptr)._create_from_ptr(ptr) self._set_field_class_user_attrs(fc, user_attributes) return fc - def create_option_field_class( - self, content_fc, selector_fc=None, user_attributes=None + 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._obj_type_from_field_class_ptr(ptr)._create_from_ptr(ptr) + self._set_field_class_user_attrs(fc, user_attributes) + return fc - selector_fc_ptr = None + 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._obj_type_from_field_class_ptr(ptr)._create_from_ptr(ptr) + self._set_field_class_user_attrs(fc, user_attributes) + fc._selector_is_reversed = selector_is_reversed + return fc - if selector_fc is not None: - utils._check_type(selector_fc, bt2_field_class._BoolFieldClass) - selector_fc_ptr = selector_fc._ptr + 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) - ptr = native_bt.field_class_option_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) + 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 + ) + ) + + self._check_field_class_create_status(ptr, "option") + fc = bt2_field_class._obj_type_from_field_class_ptr(ptr)._create_from_ptr(ptr) self._set_field_class_user_attrs(fc, user_attributes) return fc @@ -387,26 +502,7 @@ class _TraceClass(object._SharedObject, collections.abc.Mapping): 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._check_field_class_create_status(ptr, "variant") + fc = bt2_field_class._obj_type_from_field_class_ptr(ptr)._create_from_ptr(ptr) self._set_field_class_user_attrs(fc, user_attributes) return fc - - # 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 - ) - - status, listener_id = fn(self._ptr, listener_from_native) - utils._handle_func_status( - status, 'cannot add destruction listener to trace class object' - ) - - return utils._ListenerHandle(listener_id, self)