Move tracetools_read.utils to *.__init__
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2 changed files with 87 additions and 100 deletions
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@ -11,3 +11,90 @@
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Module with functions for reading traces."""
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from typing import Any
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from typing import Dict
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from typing import Iterable
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from typing import List
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import babeltrace
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DictEvent = Dict[str, Any]
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def _get_trace_ctf_events(trace_directory: str) -> Iterable[babeltrace.babeltrace.Event]:
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"""
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Get the events of a trace.
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:param trace_directory: the path to the main/top trace directory
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:return: events iterable
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"""
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tc = babeltrace.TraceCollection()
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tc.add_traces_recursive(trace_directory, 'ctf')
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return tc.events
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def get_trace_events(trace_directory: str) -> List[DictEvent]:
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"""
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Get the events of a trace.
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:param trace_directory: the path to the main/top trace directory
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:return: events
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"""
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return [event_to_dict(event) for event in _get_trace_ctf_events(trace_directory)]
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# List of ignored CTF fields
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_IGNORED_FIELDS = [
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'content_size',
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'events_discarded',
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'id',
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'packet_size',
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'packet_seq_num',
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'stream_id',
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'stream_instance_id',
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'timestamp_end',
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'timestamp_begin',
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'magic',
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'uuid',
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'v',
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]
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_DISCARD = 'events_discarded'
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def event_to_dict(event: babeltrace.babeltrace.Event) -> DictEvent:
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"""
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Convert name, timestamp, and all other keys except those in IGNORED_FIELDS into a dictionary.
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:param event: the event to convert
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:return: the event as a dictionary
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"""
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d = {'_name': event.name, '_timestamp': event.timestamp}
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if hasattr(event, _DISCARD) and event[_DISCARD] > 0:
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print(event[_DISCARD])
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for key in [key for key in event.keys() if key not in _IGNORED_FIELDS]:
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d[key] = event[key]
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return d
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def get_field(event: DictEvent, field_name: str, default=None, raise_if_not_found=True) -> Any:
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field_value = event.get(field_name, default)
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# If enabled, raise exception as soon as possible to avoid headaches
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if raise_if_not_found and field_value is None:
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raise AttributeError(f"event field '{field_name}' not found for event: {event}")
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return field_value
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def get_event_name(event: DictEvent) -> str:
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return event['_name']
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def get_event_timestamp(event: DictEvent) -> int:
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return event['_timestamp']
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def get_procname(event: DictEvent) -> str:
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return event['procname']
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@ -1,100 +0,0 @@
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# Copyright 2019 Robert Bosch GmbH
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Module with functions for reading traces."""
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from typing import Any
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from typing import Dict
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from typing import Iterable
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from typing import List
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import babeltrace
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DictEvent = Dict[str, Any]
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def _get_trace_ctf_events(trace_directory: str) -> Iterable[babeltrace.babeltrace.Event]:
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"""
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Get the events of a trace.
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:param trace_directory: the path to the main/top trace directory
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:return: events iterable
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"""
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tc = babeltrace.TraceCollection()
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tc.add_traces_recursive(trace_directory, 'ctf')
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return tc.events
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def get_trace_events(trace_directory: str) -> List[DictEvent]:
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"""
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Get the events of a trace.
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:param trace_directory: the path to the main/top trace directory
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:return: events
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"""
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return [event_to_dict(event) for event in _get_trace_ctf_events(trace_directory)]
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# List of ignored CTF fields
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_IGNORED_FIELDS = [
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'content_size',
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'events_discarded',
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'id',
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'packet_size',
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'packet_seq_num',
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'stream_id',
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'stream_instance_id',
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'timestamp_end',
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'timestamp_begin',
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'magic',
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'uuid',
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'v',
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]
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_DISCARD = 'events_discarded'
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def event_to_dict(event: babeltrace.babeltrace.Event) -> DictEvent:
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"""
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Convert name, timestamp, and all other keys except those in IGNORED_FIELDS into a dictionary.
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:param event: the event to convert
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:return: the event as a dictionary
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"""
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d = {'_name': event.name, '_timestamp': event.timestamp}
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if hasattr(event, _DISCARD) and event[_DISCARD] > 0:
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print(event[_DISCARD])
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for key in [key for key in event.keys() if key not in _IGNORED_FIELDS]:
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d[key] = event[key]
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return d
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def get_field(event: DictEvent, field_name: str, default=None, raise_if_not_found=True) -> Any:
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field_value = event.get(field_name, default)
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# If enabled, raise exception as soon as possible to avoid headaches
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if raise_if_not_found and field_value is None:
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raise AttributeError(f"event field '{field_name}' not found for event: {event}")
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return field_value
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def get_event_name(event: DictEvent) -> str:
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return event['_name']
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def get_event_timestamp(event: DictEvent) -> int:
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return event['_timestamp']
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def get_procname(event: DictEvent) -> str:
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return event['procname']
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