| 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 | |
| 46 | |
| 47 | parent_pid = None |
| 48 | daemon_pid = None |
| 49 | daemon_process = subprocess.Popen(test_path + "daemon", stdout=subprocess.PIPE) |
| 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 | |
| 57 | daemon_process_return_code = daemon_process.wait() |
| 58 | |
| 59 | if parent_pid is None or daemon_pid is None: |
| 60 | bail("Unexpected output received from daemon test executable." + str(daemon_process_output)) |
| 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: |
| 66 | bail("Could not trigger tracepoints successfully. Abandoning test.") |
| 67 | |
| 68 | stop_session(session_info) |
| 69 | |
| 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: |
| 90 | before_daemon_event_pid = int(match.group(0)) |
| 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: |
| 99 | after_daemon_event_pid = int(match.group(0)) |
| 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) |