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43c28d50 JG |
1 | #!/usr/bin/env python3 |
2 | # | |
3 | # Copyright (C) - 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
4 | # | |
5 | # This program is free software; you can redistribute it and/or modify it | |
6 | # under the terms of the GNU General Public License, version 2 only, as | |
7 | # published by the Free Software Foundation. | |
8 | # | |
9 | # This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | # more details. | |
13 | # | |
14 | # You should have received a copy of the GNU General Public License along with | |
15 | # this program; if not, write to the Free Software Foundation, Inc., 51 | |
16 | # Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
17 | ||
18 | import uuid | |
19 | import os | |
20 | import subprocess | |
21 | import re | |
22 | import shutil | |
23 | import sys | |
24 | ||
25 | test_path = os.path.dirname(os.path.abspath(__file__)) + "/" | |
26 | test_utils_path = test_path | |
27 | for i in range(4): | |
28 | test_utils_path = os.path.dirname(test_utils_path) | |
29 | test_utils_path = test_utils_path + "/utils" | |
30 | sys.path.append(test_utils_path) | |
31 | from test_utils import * | |
32 | ||
33 | ||
34 | NR_TESTS = 6 | |
35 | current_test = 1 | |
36 | print("1..{0}".format(NR_TESTS)) | |
37 | ||
38 | # Check if a sessiond is running... bail out if none found. | |
39 | if session_daemon_alive() == 0: | |
40 | 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.") | |
41 | ||
42 | session_info = create_session() | |
43 | enable_ust_tracepoint_event(session_info, "*") | |
44 | start_session(session_info) | |
45 | ||
e47784ba JG |
46 | |
47 | parent_pid = None | |
48 | daemon_pid = None | |
43c28d50 | 49 | daemon_process = subprocess.Popen(test_path + "daemon", stdout=subprocess.PIPE) |
e47784ba JG |
50 | for line in daemon_process.stdout: |
51 | name, pid = line.decode('utf-8').split() | |
52 | if name == "child_pid": | |
53 | daemon_pid = int(pid) | |
54 | if name == "parent_pid": | |
55 | parent_pid = int(pid) | |
56 | ||
b6e2447a | 57 | daemon_process_return_code = daemon_process.wait() |
43c28d50 | 58 | |
e47784ba JG |
59 | if parent_pid is None or daemon_pid is None: |
60 | bail("Unexpected output received from daemon test executable." + str(daemon_process_output)) | |
43c28d50 JG |
61 | |
62 | print_test_result(daemon_process_return_code == 0, current_test, "Successful call to daemon() and normal exit") | |
63 | current_test += 1 | |
64 | ||
65 | if daemon_process_return_code != 0: | |
e47784ba | 66 | bail("Could not trigger tracepoints successfully. Abandoning test.") |
43c28d50 JG |
67 | |
68 | stop_session(session_info) | |
69 | ||
43c28d50 JG |
70 | try: |
71 | babeltrace_process = subprocess.Popen(["babeltrace", session_info.trace_path], stdout=subprocess.PIPE) | |
72 | except FileNotFoundError: | |
73 | bail("Could not open babeltrace. Please make sure it is installed.") | |
74 | ||
75 | before_daemon_event_found = False | |
76 | before_daemon_event_pid = -1 | |
77 | after_daemon_event_found = False | |
78 | after_daemon_event_pid = -1 | |
79 | ||
80 | for event_line in babeltrace_process.stdout: | |
81 | event_line = event_line.decode('utf-8').replace("\n", "") | |
82 | ||
83 | if re.search(r"before_daemon", event_line) is not None: | |
84 | if before_daemon_event_found: | |
85 | bail("Multiple instances of the before_daemon event found. Please make sure only one instance of this test is runnning.") | |
86 | before_daemon_event_found = True | |
87 | match = re.search(r"(?<=pid = )\d+", event_line) | |
88 | ||
89 | if match is not None: | |
e47784ba | 90 | before_daemon_event_pid = int(match.group(0)) |
43c28d50 JG |
91 | |
92 | if re.search(r"after_daemon", event_line) is not None: | |
93 | if after_daemon_event_found: | |
94 | bail("Multiple instances of the after_daemon event found. Please make sure only one instance of this test is runnning.") | |
95 | after_daemon_event_found = True | |
96 | match = re.search(r"(?<=pid = )\d+", event_line) | |
97 | ||
98 | if match is not None: | |
e47784ba | 99 | after_daemon_event_pid = int(match.group(0)) |
43c28d50 JG |
100 | babeltrace_process.wait() |
101 | ||
102 | print_test_result(babeltrace_process.returncode == 0, current_test, "Resulting trace is readable") | |
103 | current_test += 1 | |
104 | ||
105 | if babeltrace_process.returncode != 0: | |
106 | bail("Unreadable trace; can't proceed with analysis.") | |
107 | ||
108 | print_test_result(before_daemon_event_found, current_test, "before_daemon event found in resulting trace") | |
109 | current_test += 1 | |
110 | print_test_result(before_daemon_event_pid == parent_pid, current_test, "Parent pid reported in trace is correct") | |
111 | current_test += 1 | |
112 | print_test_result(before_daemon_event_found, current_test, "after_daemon event found in resulting trace") | |
113 | current_test += 1 | |
114 | print_test_result(after_daemon_event_pid == daemon_pid, current_test, "Daemon pid reported in trace is correct") | |
115 | current_test += 1 | |
116 | ||
117 | shutil.rmtree(session_info.tmp_directory) |