Move tracetools_read.utils to *.__init__

This commit is contained in:
Christophe Bedard 2019-08-03 10:07:42 +02:00
parent f2bfd5cf1e
commit da605b42e3
2 changed files with 87 additions and 100 deletions

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@ -11,3 +11,90 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Module with functions for reading traces."""
from typing import Any
from typing import Dict
from typing import Iterable
from typing import List
import babeltrace
DictEvent = Dict[str, Any]
def _get_trace_ctf_events(trace_directory: str) -> Iterable[babeltrace.babeltrace.Event]:
"""
Get the events of a trace.
:param trace_directory: the path to the main/top trace directory
:return: events iterable
"""
tc = babeltrace.TraceCollection()
tc.add_traces_recursive(trace_directory, 'ctf')
return tc.events
def get_trace_events(trace_directory: str) -> List[DictEvent]:
"""
Get the events of a trace.
:param trace_directory: the path to the main/top trace directory
:return: events
"""
return [event_to_dict(event) for event in _get_trace_ctf_events(trace_directory)]
# List of ignored CTF fields
_IGNORED_FIELDS = [
'content_size',
'events_discarded',
'id',
'packet_size',
'packet_seq_num',
'stream_id',
'stream_instance_id',
'timestamp_end',
'timestamp_begin',
'magic',
'uuid',
'v',
]
_DISCARD = 'events_discarded'
def event_to_dict(event: babeltrace.babeltrace.Event) -> DictEvent:
"""
Convert name, timestamp, and all other keys except those in IGNORED_FIELDS into a dictionary.
:param event: the event to convert
:return: the event as a dictionary
"""
d = {'_name': event.name, '_timestamp': event.timestamp}
if hasattr(event, _DISCARD) and event[_DISCARD] > 0:
print(event[_DISCARD])
for key in [key for key in event.keys() if key not in _IGNORED_FIELDS]:
d[key] = event[key]
return d
def get_field(event: DictEvent, field_name: str, default=None, raise_if_not_found=True) -> Any:
field_value = event.get(field_name, default)
# If enabled, raise exception as soon as possible to avoid headaches
if raise_if_not_found and field_value is None:
raise AttributeError(f"event field '{field_name}' not found for event: {event}")
return field_value
def get_event_name(event: DictEvent) -> str:
return event['_name']
def get_event_timestamp(event: DictEvent) -> int:
return event['_timestamp']
def get_procname(event: DictEvent) -> str:
return event['procname']

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