-# The MIT License (MIT)
+# SPDX-License-Identifier: MIT
#
# Copyright (c) 2017 Philippe Proulx <pproulx@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.
from bt2 import native_bt, object, utils
from bt2 import message_iterator as bt2_message_iterator
from bt2 import trace_class as bt2_trace_class
from bt2 import clock_class as bt2_clock_class
from bt2 import query_executor as bt2_query_executor
-import traceback
from bt2 import port as bt2_port
import sys
import bt2
-import os
# This class wraps a component class pointer. This component class could
# pointer to a 'bt_component_class *'.
-class _ComponentClass(object._SharedObject):
+class _ComponentClassConst(object._SharedObject):
@property
def name(self):
ptr = self._bt_as_component_class_ptr(self._ptr)
return self._bt_as_component_class_ptr(self._ptr)
def __eq__(self, other):
- if not isinstance(other, _ComponentClass):
+ if not isinstance(other, _ComponentClassConst):
try:
if not issubclass(other, _UserComponent):
return False
return self.addr == other.addr
-class _SourceComponentClass(_ComponentClass):
+class _SourceComponentClassConst(_ComponentClassConst):
_get_ref = staticmethod(native_bt.component_class_source_get_ref)
_put_ref = staticmethod(native_bt.component_class_source_put_ref)
_bt_as_component_class_ptr = staticmethod(
)
-class _FilterComponentClass(_ComponentClass):
+class _FilterComponentClassConst(_ComponentClassConst):
_get_ref = staticmethod(native_bt.component_class_filter_get_ref)
_put_ref = staticmethod(native_bt.component_class_filter_put_ref)
_bt_as_component_class_ptr = staticmethod(
)
-class _SinkComponentClass(_ComponentClass):
+class _SinkComponentClassConst(_ComponentClassConst):
_get_ref = staticmethod(native_bt.component_class_sink_get_ref)
_put_ref = staticmethod(native_bt.component_class_sink_put_ref)
_bt_as_component_class_ptr = staticmethod(
# component pointer (e.g. 'bt_component_sink *') as a 'bt_component *'.
-class _Component:
+class _ComponentConst:
@property
def name(self):
ptr = self._bt_as_component_ptr(self._ptr)
def cls(self):
cc_ptr = self._bt_borrow_component_class_ptr(self._ptr)
assert cc_ptr is not None
- return _create_component_class_from_ptr_and_get_ref(
+ return _create_component_class_from_const_ptr_and_get_ref(
cc_ptr, self._bt_comp_cls_type
)
return self.addr == other.addr
-class _SourceComponent(_Component):
+class _SourceComponentConst(_ComponentConst):
_bt_borrow_component_class_ptr = staticmethod(
native_bt.component_source_borrow_class_const
)
_bt_as_component_ptr = staticmethod(native_bt.component_source_as_component_const)
-class _FilterComponent(_Component):
+class _FilterComponentConst(_ComponentConst):
_bt_borrow_component_class_ptr = staticmethod(
native_bt.component_filter_borrow_class_const
)
_bt_as_component_ptr = staticmethod(native_bt.component_filter_as_component_const)
-class _SinkComponent(_Component):
+class _SinkComponentConst(_ComponentConst):
_bt_borrow_component_class_ptr = staticmethod(
native_bt.component_sink_borrow_class_const
)
_bt_as_component_ptr = staticmethod(native_bt.component_sink_as_component_const)
-# This is analogous to _SourceComponentClass, but for source
+# This is analogous to _SourceComponentClassConst, but for source
# component objects.
-class _GenericSourceComponent(object._SharedObject, _SourceComponent):
+class _GenericSourceComponentConst(object._SharedObject, _SourceComponentConst):
_get_ref = staticmethod(native_bt.component_source_get_ref)
_put_ref = staticmethod(native_bt.component_source_put_ref)
native_bt.component_source_borrow_output_port_by_name_const,
native_bt.component_source_borrow_output_port_by_index_const,
native_bt.component_source_get_output_port_count,
- bt2_port._OutputPort,
+ bt2_port._OutputPortConst,
)
-# This is analogous to _FilterComponentClass, but for filter
+# This is analogous to _FilterComponentClassConst, but for filter
# component objects.
-class _GenericFilterComponent(object._SharedObject, _FilterComponent):
+class _GenericFilterComponentConst(object._SharedObject, _FilterComponentConst):
_get_ref = staticmethod(native_bt.component_filter_get_ref)
_put_ref = staticmethod(native_bt.component_filter_put_ref)
native_bt.component_filter_borrow_output_port_by_name_const,
native_bt.component_filter_borrow_output_port_by_index_const,
native_bt.component_filter_get_output_port_count,
- bt2_port._OutputPort,
+ bt2_port._OutputPortConst,
)
@property
native_bt.component_filter_borrow_input_port_by_name_const,
native_bt.component_filter_borrow_input_port_by_index_const,
native_bt.component_filter_get_input_port_count,
- bt2_port._InputPort,
+ bt2_port._InputPortConst,
)
-# This is analogous to _SinkComponentClass, but for sink
+# This is analogous to _SinkComponentClassConst, but for sink
# component objects.
-class _GenericSinkComponent(object._SharedObject, _SinkComponent):
+class _GenericSinkComponentConst(object._SharedObject, _SinkComponentConst):
_get_ref = staticmethod(native_bt.component_sink_get_ref)
_put_ref = staticmethod(native_bt.component_sink_put_ref)
native_bt.component_sink_borrow_input_port_by_name_const,
native_bt.component_sink_borrow_input_port_by_index_const,
native_bt.component_sink_get_input_port_count,
- bt2_port._InputPort,
+ bt2_port._InputPortConst,
)
_COMP_CLS_TYPE_TO_GENERIC_COMP_PYCLS = {
- native_bt.COMPONENT_CLASS_TYPE_SOURCE: _GenericSourceComponent,
- native_bt.COMPONENT_CLASS_TYPE_FILTER: _GenericFilterComponent,
- native_bt.COMPONENT_CLASS_TYPE_SINK: _GenericSinkComponent,
+ native_bt.COMPONENT_CLASS_TYPE_SOURCE: _GenericSourceComponentConst,
+ native_bt.COMPONENT_CLASS_TYPE_FILTER: _GenericFilterComponentConst,
+ native_bt.COMPONENT_CLASS_TYPE_SINK: _GenericSinkComponentConst,
}
_COMP_CLS_TYPE_TO_GENERIC_COMP_CLS_PYCLS = {
- native_bt.COMPONENT_CLASS_TYPE_SOURCE: _SourceComponentClass,
- native_bt.COMPONENT_CLASS_TYPE_FILTER: _FilterComponentClass,
- native_bt.COMPONENT_CLASS_TYPE_SINK: _SinkComponentClass,
+ native_bt.COMPONENT_CLASS_TYPE_SOURCE: _SourceComponentClassConst,
+ native_bt.COMPONENT_CLASS_TYPE_FILTER: _FilterComponentClassConst,
+ native_bt.COMPONENT_CLASS_TYPE_SINK: _SinkComponentClassConst,
}
-# Create a component Python object of type _GenericSourceComponent,
-# _GenericFilterComponent or _GenericSinkComponent, depending on
+# Create a component Python object of type _GenericSourceComponentConst,
+# _GenericFilterComponentConst or _GenericSinkComponentConst, depending on
# comp_cls_type.
#
# Steals the reference to ptr from the caller.
-def _create_component_from_ptr(ptr, comp_cls_type):
+def _create_component_from_const_ptr(ptr, comp_cls_type):
return _COMP_CLS_TYPE_TO_GENERIC_COMP_PYCLS[comp_cls_type]._create_from_ptr(ptr)
# reference from the caller.
-def _create_component_from_ptr_and_get_ref(ptr, comp_cls_type):
+def _create_component_from_const_ptr_and_get_ref(ptr, comp_cls_type):
return _COMP_CLS_TYPE_TO_GENERIC_COMP_PYCLS[
comp_cls_type
]._create_from_ptr_and_get_ref(ptr)
# Create a component class Python object of type
-# _SourceComponentClass, _FilterComponentClass or
-# _SinkComponentClass, depending on comp_cls_type.
+# _SourceComponentClassConst, _FilterComponentClassConst or
+# _SinkComponentClassConst, depending on comp_cls_type.
#
# Acquires a new reference to ptr.
-def _create_component_class_from_ptr_and_get_ref(ptr, comp_cls_type):
+def _create_component_class_from_const_ptr_and_get_ref(ptr, comp_cls_type):
return _COMP_CLS_TYPE_TO_GENERIC_COMP_CLS_PYCLS[
comp_cls_type
]._create_from_ptr_and_get_ref(ptr)
# creates a native BT component class of the corresponding type and
# associates it with this user-defined class. The metaclass also defines
# class methods like the `name` and `description` properties to match
-# the _ComponentClass interface.
+# the _ComponentClassConst interface.
#
# The component class name which is used is either:
#
# create instance, not user-initialized yet
self = cls.__new__(cls)
+ # config object
+ config = cls._config_pycls()
+
# pointer to native self component object (weak/borrowed)
self._bt_ptr = comp_ptr
# call user's __init__() method
if params_ptr is not None:
- params = bt2_value._create_from_ptr_and_get_ref(params_ptr)
+ params = bt2_value._create_from_const_ptr_and_get_ref(params_ptr)
else:
params = None
- self.__init__(params, obj)
+ self.__init__(config, params, obj)
return self
def __call__(cls, *args, **kwargs):
)
)
+ if hasattr(iter_cls, '_user_can_seek_ns_from_origin') and not hasattr(
+ iter_cls, '_user_seek_ns_from_origin'
+ ):
+ raise bt2._IncompleteUserClass(
+ "cannot create component class '{}': message iterator class implements _user_can_seek_ns_from_origin but not _user_seek_ns_from_origin".format(
+ cls.__name__
+ )
+ )
+
+ if hasattr(iter_cls, '_user_can_seek_beginning') and not hasattr(
+ iter_cls, '_user_seek_beginning'
+ ):
+ raise bt2._IncompleteUserClass(
+ "cannot create component class '{}': message iterator class implements _user_can_seek_beginning but not _user_seek_beginning".format(
+ cls.__name__
+ )
+ )
+
cls._iter_cls = iter_cls
@property
def addr(cls):
return int(cls._bt_cc_ptr)
- def _bt_query_from_native(cls, priv_query_exec_ptr, obj, params_ptr):
- # this can raise, in which case the native call to
- # bt_component_class_query() returns NULL
+ def _bt_get_supported_mip_versions_from_native(cls, params_ptr, obj, log_level):
+ # this can raise, but the native side checks the exception
+ if params_ptr is not None:
+ params = bt2_value._create_from_const_ptr_and_get_ref(params_ptr)
+ else:
+ params = None
+
+ # this can raise, but the native side checks the exception
+ range_set = cls._user_get_supported_mip_versions(params, obj, log_level)
+
+ if type(range_set) is not bt2.UnsignedIntegerRangeSet:
+ # this can raise, but the native side checks the exception
+ range_set = bt2.UnsignedIntegerRangeSet(range_set)
+
+ # return new reference
+ range_set._get_ref(range_set._ptr)
+ return int(range_set._ptr)
+
+ def _user_get_supported_mip_versions(cls, params, obj, log_level):
+ return [0]
+
+ def _bt_query_from_native(
+ cls, priv_query_exec_ptr, object_name, params_ptr, method_obj
+ ):
+ # this can raise, but the native side checks the exception
if params_ptr is not None:
- params = bt2_value._create_from_ptr_and_get_ref(params_ptr)
+ params = bt2_value._create_from_const_ptr_and_get_ref(params_ptr)
else:
params = None
try:
# this can raise, but the native side checks the exception
- results = cls._user_query(priv_query_exec, obj, params)
+ results = cls._user_query(priv_query_exec, object_name, params, method_obj)
finally:
# the private query executor is a private view on the query
# executor; it's not a shared object (the library does not
bt2_value._Value._get_ref(results_ptr)
return int(results_ptr)
- def _user_query(cls, priv_query_executor, obj, params):
+ def _user_query(cls, priv_query_executor, object_name, params, method_obj):
raise bt2.UnknownObject
def _bt_component_class_ptr(self):
native_bt.bt2_unregister_cc_ptr_to_py_cls(cc_ptr)
+# Configuration objects for components.
+#
+# These are passed in __init__ to allow components to change some configuration
+# parameters during initialization and not after. As you can see, they are not
+# used at the moment, but are there in case we want to add such parameters.
+
+
+class _UserComponentConfiguration:
+ pass
+
+
+class _UserSourceComponentConfiguration(_UserComponentConfiguration):
+ pass
+
+
+class _UserFilterComponentConfiguration(_UserComponentConfiguration):
+ pass
+
+
+class _UserSinkComponentConfiguration(_UserComponentConfiguration):
+ pass
+
+
# Subclasses must provide these methods or property:
#
# - _bt_as_not_self_specific_component_ptr: static method, must return the passed
def cls(self):
comp_ptr = self._bt_as_not_self_specific_component_ptr(self._bt_ptr)
cc_ptr = self._bt_borrow_component_class_ptr(comp_ptr)
- return _create_component_class_from_ptr_and_get_ref(
+ return _create_component_class_from_const_ptr_and_get_ref(
cc_ptr, self._bt_comp_cls_type
)
def addr(self):
return int(self._bt_ptr)
- def __init__(self, params=None, obj=None):
+ @property
+ def _graph_mip_version(self):
+ ptr = self._bt_as_self_component_ptr(self._bt_ptr)
+ return native_bt.self_component_get_graph_mip_version(ptr)
+
+ def __init__(self, config, params, obj):
pass
def _user_finalize(self):
else:
other_port_type = native_bt.PORT_TYPE_OUTPUT
- other_port = bt2_port._create_from_ptr_and_get_ref(
+ other_port = bt2_port._create_from_const_ptr_and_get_ref(
other_port_ptr, other_port_type
)
self._user_port_connected(port, other_port)
- def _create_trace_class(self, assigns_automatic_stream_class_id=True):
+ def _create_trace_class(
+ self, user_attributes=None, assigns_automatic_stream_class_id=True
+ ):
ptr = self._bt_as_self_component_ptr(self._bt_ptr)
tc_ptr = native_bt.trace_class_create(ptr)
tc = bt2_trace_class._TraceClass._create_from_ptr(tc_ptr)
tc._assigns_automatic_stream_class_id = assigns_automatic_stream_class_id
+ if user_attributes is not None:
+ tc._user_attributes = user_attributes
+
return tc
def _create_clock_class(
self,
frequency=None,
name=None,
+ user_attributes=None,
description=None,
precision=None,
offset=None,
if name is not None:
cc._name = name
+ if user_attributes is not None:
+ cc._user_attributes = user_attributes
+
if description is not None:
cc._description = description
return cc
-class _UserSourceComponent(_UserComponent, _SourceComponent):
+class _UserSourceComponent(_UserComponent, _SourceComponentConst):
_bt_as_not_self_specific_component_ptr = staticmethod(
native_bt.self_component_source_as_component_source
)
_bt_as_self_component_ptr = staticmethod(
native_bt.self_component_source_as_self_component
)
+ _config_pycls = _UserSourceComponentConfiguration
@property
def _output_ports(self):
comp_status, 'cannot add output port to source component object'
)
assert self_port_ptr is not None
- return bt2_port._UserComponentOutputPort._create_from_ptr(self_port_ptr)
+ return bt2_port._UserComponentOutputPort._create_from_ptr_and_get_ref(
+ self_port_ptr
+ )
-class _UserFilterComponent(_UserComponent, _FilterComponent):
+class _UserFilterComponent(_UserComponent, _FilterComponentConst):
_bt_as_not_self_specific_component_ptr = staticmethod(
native_bt.self_component_filter_as_component_filter
)
_bt_as_self_component_ptr = staticmethod(
native_bt.self_component_filter_as_self_component
)
+ _config_pycls = _UserFilterComponentConfiguration
@property
def _output_ports(self):
comp_status, 'cannot add output port to filter component object'
)
assert self_port_ptr
- return bt2_port._UserComponentOutputPort._create_from_ptr(self_port_ptr)
+ return bt2_port._UserComponentOutputPort._create_from_ptr_and_get_ref(
+ self_port_ptr
+ )
def _add_input_port(self, name, user_data=None):
utils._check_str(name)
comp_status, 'cannot add input port to filter component object'
)
assert self_port_ptr
- return bt2_port._UserComponentInputPort._create_from_ptr(self_port_ptr)
+ return bt2_port._UserComponentInputPort._create_from_ptr_and_get_ref(
+ self_port_ptr
+ )
-class _UserSinkComponent(_UserComponent, _SinkComponent):
+class _UserSinkComponent(_UserComponent, _SinkComponentConst):
_bt_as_not_self_specific_component_ptr = staticmethod(
native_bt.self_component_sink_as_component_sink
)
_bt_as_self_component_ptr = staticmethod(
native_bt.self_component_sink_as_self_component
)
+ _config_pycls = _UserSinkComponentConfiguration
def _bt_graph_is_configured_from_native(self):
self._user_graph_is_configured()
comp_status, 'cannot add input port to sink component object'
)
assert self_port_ptr
- return bt2_port._UserComponentInputPort._create_from_ptr(self_port_ptr)
+ return bt2_port._UserComponentInputPort._create_from_ptr_and_get_ref(
+ self_port_ptr
+ )
- def _create_input_port_message_iterator(self, input_port):
+ def _create_message_iterator(self, input_port):
utils._check_type(input_port, bt2_port._UserComponentInputPort)
- msg_iter_ptr = native_bt.self_component_port_input_message_iterator_create_from_sink_component(
+ (
+ status,
+ msg_iter_ptr,
+ ) = native_bt.bt2_message_iterator_create_from_sink_component(
self._bt_ptr, input_port._ptr
)
-
- if msg_iter_ptr is None:
- raise bt2.CreationError('cannot create message iterator object')
+ utils._handle_func_status(status, 'cannot create message iterator object')
+ assert msg_iter_ptr is not None
return bt2_message_iterator._UserComponentInputPortMessageIterator(msg_iter_ptr)
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