--- /dev/null
+#!/usr/bin/env python3
+#
+# The MIT License (MIT)
+#
+# Copyright (C) 2016 - Jérémie Galarneau <jeremie.galarneau@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.
+
+import bt_python_helper
+import tempfile
+import babeltrace.writer as btw
+import babeltrace.reader as btr
+import uuid
+import shutil
+
+
+class Entry(object):
+ def __init__(self, stream_id, timestamp=None, end_of_packet=False):
+ self.stream_id = stream_id
+ self.timestamp = timestamp
+ self.end_of_packet = end_of_packet
+
+
+class Packet(object):
+ def __init__(self, timestamps):
+ self.timestamps = timestamps
+
+clock_uuid = uuid.uuid4()
+
+# stream_descriptions is a list of lists of Packets.
+# Each stream description list is mapped to a single stream instance.
+def create_trace(path, clock_uuid, stream_descriptions):
+ trace = btw.Writer(path)
+ clock = btw.Clock('test_clock')
+ clock.uuid = clock_uuid
+ trace.add_clock(clock)
+
+ integer_field_type = btw.IntegerFieldDeclaration(32)
+
+ event_class = btw.EventClass('simple_event')
+ event_class.add_field(integer_field_type, 'int_field')
+
+ stream_class = btw.StreamClass('test_stream')
+ stream_class.add_event_class(event_class)
+ stream_class.clock = clock
+
+ streams = []
+ stream_entries = []
+ for stream_id, stream_packets in enumerate(stream_descriptions):
+ stream = trace.create_stream(stream_class)
+ streams.append(stream)
+
+ for packet in stream_packets:
+ for timestamp in packet.timestamps:
+ stream_entries.append(Entry(stream_id, timestamp))
+ # Mark the last inserted entry as the end of packet
+ stream_entries[len(stream_entries) - 1].end_of_packet = True
+
+ # Sort stream entries which will provide us with a time-ordered list of
+ # events to insert in the streams.
+ for entry in sorted(stream_entries, key=lambda entry: entry.timestamp):
+ clock.time = entry.timestamp
+ event = btw.Event(event_class)
+ event.payload('int_field').value = entry.stream_id
+ streams[entry.stream_id].append_event(event)
+ if entry.end_of_packet is True:
+ streams[entry.stream_id].flush()
+
+
+def check_trace_expected_timestamps(trace_paths, expected_timestamps):
+ traces = btr.TraceCollection(intersect_mode=True)
+ for trace_path in trace_paths:
+ trace_handle = traces.add_trace(trace_path, 'ctf')
+ if trace_handle is None:
+ print('Failed to open trace at {}'.format(trace_path))
+ return False
+ for event in traces.events:
+ expected_timestamp = expected_timestamps.pop(0)
+ if event.timestamp != expected_timestamp:
+ print('# Unexpected timestamp ({}), expected {}'.format(
+ event.timestamp, expected_timestamp))
+ return False
+ return True
+
+
+def print_test_result(test_number, result, description):
+ result_string = 'ok' if result else 'not ok'
+ result_string += ' {} - {}'.format(test_number, description)
+ print(result_string)
+
+TEST_COUNT = 3
+# TAP plan
+print('1..{}'.format(TEST_COUNT))
+
+trace_path_early = tempfile.mkdtemp()
+
+# The stream intersection of this trace is event timestamps 11, 12 and 13,
+# accounting for 9 events in stream-intersection mode
+print('# Creating early trace at {}'.format(trace_path_early))
+create_trace(trace_path_early, clock_uuid, [
+ [Packet(range(1, 7)), Packet(range(11, 18))],
+ [Packet(range(8, 15)), Packet(range(22, 24)), Packet(range(30, 60))],
+ [Packet(range(11, 14))]
+ ])
+
+trace_path_late = tempfile.mkdtemp()
+print('# Creating late trace at {}'.format(trace_path_late))
+# The stream intersection of this trace is event timestamps 100, 101, 102, 103
+# and 104 accounting for 15 events in stream-intersection mode
+create_trace(trace_path_late, clock_uuid, [
+ [Packet(range(100, 105)), Packet(range(109, 120))],
+ [Packet(range(88, 95)), Packet(range(96, 110)), Packet(range(112, 140))],
+ [Packet(range(99, 105))]
+ ])
+
+expected_timestamps_early = []
+for ts in range(11, 14):
+ for stream in range(3):
+ expected_timestamps_early.append(ts)
+
+expected_timestamps_late = []
+for ts in range(100, 105):
+ for stream in range(3):
+ expected_timestamps_late.append(ts)
+
+expected_timestamps_union = (expected_timestamps_early +
+ expected_timestamps_late)
+
+# Validate that the stream-intersection mode on a single trace returns only
+# the events that are in overlapping packets across all of the trace's streams.
+result = check_trace_expected_timestamps([trace_path_early],
+ expected_timestamps_early)
+print_test_result(1, result, 'Validating expected event timestamps of "early" trace')
+
+result = check_trace_expected_timestamps([trace_path_late],
+ expected_timestamps_late)
+print_test_result(2, result, 'Validating expected event timestamps of "late" trace')
+
+result = check_trace_expected_timestamps([trace_path_early, trace_path_late],
+ expected_timestamps_union)
+print_test_result(3, result, 'Validating expected event timestamps of the union of "early" and "late" traces')
+
+shutil.rmtree(trace_path_early)
+shutil.rmtree(trace_path_late)
projects / babeltrace.git / blobdiff