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cfb007a4 JG |
1 | #!/usr/bin/env python3 |
2 | # | |
9d16b343 | 3 | # Copyright (C) 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
cfb007a4 | 4 | # |
9d16b343 | 5 | # SPDX-License-Identifier: GPL-2.0-only |
cfb007a4 | 6 | # |
cfb007a4 JG |
7 | |
8 | import uuid | |
9 | import os | |
10 | import subprocess | |
11 | import shutil | |
12 | import sys | |
2a69bf14 | 13 | import time |
cfb007a4 JG |
14 | import tempfile |
15 | ||
16 | # Import lttng bindings generated in the current tree | |
17 | lttng_bindings_path = os.path.dirname(os.path.abspath(__file__)) + "/" | |
18 | for i in range(3): | |
19 | lttng_bindings_path = os.path.dirname(lttng_bindings_path) | |
20 | lttng_bindings_path = lttng_bindings_path + "/extras/bindings/swig/python" | |
21 | lttng_bindings_libs_path = lttng_bindings_path + "/.libs" | |
22 | sys.path.append(lttng_bindings_path) | |
23 | sys.path.append(lttng_bindings_libs_path) | |
24 | from lttng import * | |
25 | ||
2a69bf14 | 26 | _time_tests = True |
f7169e41 | 27 | if os.getenv("TAP_AUTOTIME", "1") == "" or os.getenv("TAP_AUTOTIME", "1") == "0" or sys.version_info < (3,3,0): |
2a69bf14 | 28 | _time_tests = False |
f7169e41 KS |
29 | |
30 | def _get_time_ns(): | |
31 | assert sys.version_info > (3, 3, 0) | |
32 | # time.monotonic_ns is only available for python >= 3.8 | |
33 | return time.monotonic() * 1000000000 | |
34 | ||
35 | ||
36 | _last_time = _get_time_ns() | |
2a69bf14 | 37 | |
c125de8f | 38 | BABELTRACE_BIN="babeltrace2" |
cfb007a4 JG |
39 | |
40 | class SessionInfo: | |
41 | def __init__(self, handle, session_name, tmp_directory, channel_name): | |
42 | self.handle = handle | |
43 | self.name = session_name | |
44 | self.tmp_directory = tmp_directory | |
45 | self.trace_path = tmp_directory + "/" + session_name | |
46 | self.channel_name = channel_name | |
47 | ||
48 | def bail(diag, session_info = None): | |
49 | print("Bail out!") | |
50 | print("#", diag) | |
51 | ||
52 | if session_info is not None: | |
53 | stop_session(session_info, True) | |
54 | ||
7f2841b7 JG |
55 | if os.path.exists(session_info.tmp_directory): |
56 | shutil.rmtree(session_info.tmp_directory) | |
cfb007a4 JG |
57 | exit(-1) |
58 | ||
2a69bf14 KS |
59 | def print_automatic_test_timing(): |
60 | global _time_tests | |
61 | global _last_time | |
62 | if not _time_tests: | |
63 | return | |
f7169e41 KS |
64 | duration_ns = _get_time_ns() - _last_time |
65 | print(" ---\n duration_ms: {:02f}\n ...".format(duration_ns / 1000000)) | |
66 | _last_time = _get_time_ns() | |
2a69bf14 | 67 | |
cfb007a4 JG |
68 | def print_test_result(result, number, description): |
69 | result_string = None | |
70 | if result is True: | |
71 | result_string = "ok" | |
72 | else: | |
73 | result_string = "not ok" | |
74 | ||
75 | result_string += " {0} - {1}".format(number, description) | |
76 | print(result_string) | |
2a69bf14 | 77 | print_automatic_test_timing() |
cfb007a4 | 78 | |
bc1d8ca0 PP |
79 | def skip_test(number, description): |
80 | print('ok {} # skip {}'.format(number, description)) | |
2a69bf14 | 81 | print_automatic_test_timing() |
bc1d8ca0 | 82 | |
cfb007a4 JG |
83 | def enable_ust_tracepoint_event(session_info, event_name): |
84 | event = Event() | |
85 | event.name = event_name | |
86 | event.type = EVENT_TRACEPOINT | |
87 | event.loglevel = EVENT_LOGLEVEL_ALL | |
88 | res = enable_event(session_info.handle, event, session_info.channel_name) | |
89 | if res < 0: | |
90 | bail("Failed to enable userspace event " + event_name, session_info) | |
91 | ||
92 | def create_session(): | |
93 | dom = Domain() | |
94 | dom.type = DOMAIN_UST | |
95 | ||
96 | session_name = str(uuid.uuid1()) | |
97 | tmp_directory = tempfile.mkdtemp() | |
98 | trace_path = tmp_directory + "/" + session_name | |
99 | ||
100 | res = create(session_name, trace_path) | |
101 | if res < 0: | |
e9711845 | 102 | bail("Failed to create recording session.") |
cfb007a4 JG |
103 | |
104 | channel = Channel() | |
105 | channel.name = "channel0" | |
106 | channel_set_default_attr(dom, channel.attr) | |
107 | ||
108 | han = Handle(session_name, dom) | |
109 | res = enable_channel(han, channel) | |
110 | ||
111 | session_info = SessionInfo(han, session_name, tmp_directory, channel.name) | |
112 | if res < 0: | |
113 | bail("Failed to enable channel " + channel.name, session_info) | |
114 | return session_info | |
115 | ||
116 | def start_session(session_info): | |
117 | start(session_info.name) | |
118 | ||
119 | def stop_session(session_info, bailing = False): | |
120 | # Workaround lttng-ctl outputing directly to stdout by spawning a subprocess. | |
121 | lttng_binary_path = os.path.dirname(os.path.abspath(__file__)) + "/" | |
122 | for i in range(3): | |
123 | lttng_binary_path = os.path.dirname(lttng_binary_path) | |
124 | lttng_binary_path = lttng_binary_path + "/src/bin/lttng/lttng" | |
125 | ||
126 | retcode = subprocess.call([lttng_binary_path, "stop", session_info.name], stdout=subprocess.PIPE, stderr=subprocess.PIPE) | |
127 | if retcode != 0 and not bailing: | |
128 | bail("Unable to stop session " + session_info.name, session_info) | |
129 | destroy(session_info.name) |