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#!/usr/bin/env python3
#
# SPDX-FileCopyrightText: 2024 Kienan Stewart <kstewart@efficios.com>
# SPDX-License-Identifier: GPL-2.0-only
#
"""
Test for https://review.lttng.org/c/lttng-tools/+/11819
A live client shouldn't hang around after a session with no data has
been destroyed
"""
import pathlib
import socket
import subprocess
import sys
# Import in-tree test utils
test_utils_import_path = pathlib.Path(__file__).absolute().parents[3] / "utils"
sys.path.append(str(test_utils_import_path))
import lttngtest
import bt2
tap = lttngtest.TapGenerator(1)
def test_live_hang(tap, test_env):
client = lttngtest.LTTngClient(test_env, log=tap.diagnostic)
# lttng create --live
output = lttngtest.NetworkSessionOutputLocation(
"net://localhost:{}:{}/".format(
test_env.lttng_relayd_control_port, test_env.lttng_relayd_data_port
)
)
session = client.create_session(output=output, live=True)
# lttng enable-event --userspace --all
channel = session.add_channel(lttngtest.lttngctl.TracingDomain.User)
channel.add_recording_rule(lttngtest.lttngctl.UserTracepointEventRule())
session.start()
test_app = test_env.launch_wait_trace_test_application(100)
session.stop()
session.clear()
viewer = test_env.launch_live_viewer(session.name)
viewer.wait_until_connected()
session.destroy()
viewer.wait()
tap.test(
True,
"BT2 live viewer exited successfully",
)
with lttngtest.test_environment(
with_sessiond=True, log=tap.diagnostic, with_relayd=True
) as test_env:
test_live_hang(tap, test_env)
sys.exit(0 if tap.is_successful else 1)
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