#!/usr/bin/env python3
#
-# Copyright (C) - 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+# Copyright (C) 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of the GNU General Public License, version 2 only, as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-# more details.
-#
-# You should have received a copy of the GNU General Public License along with
-# this program; if not, write to the Free Software Foundation, Inc., 51
-# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+# SPDX-License-Identifier: GPL-2.0-only
import uuid
import os
# Check if a sessiond is running... bail out if none found.
if session_daemon_alive() == 0:
- bail("No sessiond running. Please make sure you are running this test with the \"run\" shell script and verify that the lttng tools are properly installed.")
+ bail(
+ 'No sessiond running. Please make sure you are running this test with the "run" shell script and verify that the lttng tools are properly installed.'
+ )
session_info = create_session()
enable_ust_tracepoint_event(session_info, "*")
start_session(session_info)
+
+parent_pid = None
+daemon_pid = None
daemon_process = subprocess.Popen(test_path + "daemon", stdout=subprocess.PIPE)
-daemon_process_return_code = daemon_process.wait()
+for line in daemon_process.stdout:
+ name, pid = line.decode("utf-8").split()
+ if name == "child_pid":
+ daemon_pid = int(pid)
+ if name == "parent_pid":
+ parent_pid = int(pid)
-daemon_process_output = daemon_process.communicate()[0]
-daemon_process_output = daemon_process_output.decode('utf-8').splitlines()
+daemon_process_return_code = daemon_process.wait()
-print_test_result(daemon_process_return_code == 0, current_test, "Successful call to daemon() and normal exit")
+if parent_pid is None or daemon_pid is None:
+ bail(
+ "Unexpected output received from daemon test executable."
+ + str(daemon_process_output)
+ )
+
+print_test_result(
+ daemon_process_return_code == 0,
+ current_test,
+ "Successful call to daemon() and normal exit",
+)
current_test += 1
if daemon_process_return_code != 0:
- bail("Could not trigger tracepoints successfully. Abondoning test.")
+ bail("Could not trigger tracepoints successfully. Abandoning test.")
stop_session(session_info)
-if len(daemon_process_output) != 2:
- bail("Unexpected output received from daemon test executable." + str(daemon_process_output))
-
-parent_pid = re.search(r"\d+", daemon_process_output[0]).group(0)
-daemon_pid = re.search(r"\d+", daemon_process_output[1]).group(0)
-
try:
- babeltrace_process = subprocess.Popen(["babeltrace", session_info.trace_path], stdout=subprocess.PIPE)
+ babeltrace_process = subprocess.Popen(
+ [BABELTRACE_BIN, session_info.trace_path], stdout=subprocess.PIPE
+ )
except FileNotFoundError:
- bail("Could not open babeltrace. Please make sure it is installed.")
+ bail("Could not open {}. Please make sure it is installed.".format(BABELTRACE_BIN))
before_daemon_event_found = False
before_daemon_event_pid = -1
after_daemon_event_pid = -1
for event_line in babeltrace_process.stdout:
- event_line = event_line.decode('utf-8').replace("\n", "")
+ event_line = event_line.decode("utf-8").replace("\n", "")
if re.search(r"before_daemon", event_line) is not None:
if before_daemon_event_found:
- bail("Multiple instances of the before_daemon event found. Please make sure only one instance of this test is runnning.")
+ bail(
+ "Multiple instances of the before_daemon event found. Please make sure only one instance of this test is runnning."
+ )
before_daemon_event_found = True
match = re.search(r"(?<=pid = )\d+", event_line)
if match is not None:
- before_daemon_event_pid = match.group(0)
+ before_daemon_event_pid = int(match.group(0))
if re.search(r"after_daemon", event_line) is not None:
if after_daemon_event_found:
- bail("Multiple instances of the after_daemon event found. Please make sure only one instance of this test is runnning.")
+ bail(
+ "Multiple instances of the after_daemon event found. Please make sure only one instance of this test is runnning."
+ )
after_daemon_event_found = True
match = re.search(r"(?<=pid = )\d+", event_line)
if match is not None:
- after_daemon_event_pid = match.group(0)
+ after_daemon_event_pid = int(match.group(0))
babeltrace_process.wait()
-print_test_result(babeltrace_process.returncode == 0, current_test, "Resulting trace is readable")
+print_test_result(
+ babeltrace_process.returncode == 0, current_test, "Resulting trace is readable"
+)
current_test += 1
if babeltrace_process.returncode != 0:
bail("Unreadable trace; can't proceed with analysis.")
-print_test_result(before_daemon_event_found, current_test, "before_daemon event found in resulting trace")
+print_test_result(
+ before_daemon_event_found,
+ current_test,
+ "before_daemon event found in resulting trace",
+)
current_test += 1
-print_test_result(before_daemon_event_pid == parent_pid, current_test, "Parent pid reported in trace is correct")
+print_test_result(
+ before_daemon_event_pid == parent_pid,
+ current_test,
+ "Parent pid reported in trace is correct",
+)
current_test += 1
-print_test_result(before_daemon_event_found, current_test, "after_daemon event found in resulting trace")
+print_test_result(
+ before_daemon_event_found,
+ current_test,
+ "after_daemon event found in resulting trace",
+)
current_test += 1
-print_test_result(after_daemon_event_pid == daemon_pid, current_test, "Daemon pid reported in trace is correct")
+print_test_result(
+ after_daemon_event_pid == daemon_pid,
+ current_test,
+ "Daemon pid reported in trace is correct",
+)
current_test += 1
shutil.rmtree(session_info.tmp_directory)
projects / lttng-tools.git / blobdiff