| 1 | #!/usr/bin/env python3 |
| 2 | # |
| 3 | # Copyright (C) 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 4 | # |
| 5 | # SPDX-License-Identifier: GPL-2.0-only |
| 6 | |
| 7 | import uuid |
| 8 | import os |
| 9 | import subprocess |
| 10 | import re |
| 11 | import shutil |
| 12 | import sys |
| 13 | |
| 14 | test_path = os.path.dirname(os.path.abspath(__file__)) + "/" |
| 15 | test_utils_path = test_path |
| 16 | for i in range(4): |
| 17 | test_utils_path = os.path.dirname(test_utils_path) |
| 18 | test_utils_path = test_utils_path + "/utils" |
| 19 | sys.path.append(test_utils_path) |
| 20 | from test_utils import * |
| 21 | |
| 22 | |
| 23 | NR_TESTS = 6 |
| 24 | current_test = 1 |
| 25 | print("1..{0}".format(NR_TESTS)) |
| 26 | |
| 27 | # Check if a sessiond is running... bail out if none found. |
| 28 | if session_daemon_alive() == 0: |
| 29 | 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.") |
| 30 | |
| 31 | session_info = create_session() |
| 32 | enable_ust_tracepoint_event(session_info, "*") |
| 33 | start_session(session_info) |
| 34 | |
| 35 | |
| 36 | parent_pid = None |
| 37 | daemon_pid = None |
| 38 | daemon_process = subprocess.Popen(test_path + "daemon", stdout=subprocess.PIPE) |
| 39 | for line in daemon_process.stdout: |
| 40 | name, pid = line.decode('utf-8').split() |
| 41 | if name == "child_pid": |
| 42 | daemon_pid = int(pid) |
| 43 | if name == "parent_pid": |
| 44 | parent_pid = int(pid) |
| 45 | |
| 46 | daemon_process_return_code = daemon_process.wait() |
| 47 | |
| 48 | if parent_pid is None or daemon_pid is None: |
| 49 | bail("Unexpected output received from daemon test executable." + str(daemon_process_output)) |
| 50 | |
| 51 | print_test_result(daemon_process_return_code == 0, current_test, "Successful call to daemon() and normal exit") |
| 52 | current_test += 1 |
| 53 | |
| 54 | if daemon_process_return_code != 0: |
| 55 | bail("Could not trigger tracepoints successfully. Abandoning test.") |
| 56 | |
| 57 | stop_session(session_info) |
| 58 | |
| 59 | try: |
| 60 | babeltrace_process = subprocess.Popen([BABELTRACE_BIN, session_info.trace_path], stdout=subprocess.PIPE) |
| 61 | except FileNotFoundError: |
| 62 | bail("Could not open {}. Please make sure it is installed.".format(BABELTRACE_BIN)) |
| 63 | |
| 64 | before_daemon_event_found = False |
| 65 | before_daemon_event_pid = -1 |
| 66 | after_daemon_event_found = False |
| 67 | after_daemon_event_pid = -1 |
| 68 | |
| 69 | for event_line in babeltrace_process.stdout: |
| 70 | event_line = event_line.decode('utf-8').replace("\n", "") |
| 71 | |
| 72 | if re.search(r"before_daemon", event_line) is not None: |
| 73 | if before_daemon_event_found: |
| 74 | bail("Multiple instances of the before_daemon event found. Please make sure only one instance of this test is runnning.") |
| 75 | before_daemon_event_found = True |
| 76 | match = re.search(r"(?<=pid = )\d+", event_line) |
| 77 | |
| 78 | if match is not None: |
| 79 | before_daemon_event_pid = int(match.group(0)) |
| 80 | |
| 81 | if re.search(r"after_daemon", event_line) is not None: |
| 82 | if after_daemon_event_found: |
| 83 | bail("Multiple instances of the after_daemon event found. Please make sure only one instance of this test is runnning.") |
| 84 | after_daemon_event_found = True |
| 85 | match = re.search(r"(?<=pid = )\d+", event_line) |
| 86 | |
| 87 | if match is not None: |
| 88 | after_daemon_event_pid = int(match.group(0)) |
| 89 | babeltrace_process.wait() |
| 90 | |
| 91 | print_test_result(babeltrace_process.returncode == 0, current_test, "Resulting trace is readable") |
| 92 | current_test += 1 |
| 93 | |
| 94 | if babeltrace_process.returncode != 0: |
| 95 | bail("Unreadable trace; can't proceed with analysis.") |
| 96 | |
| 97 | print_test_result(before_daemon_event_found, current_test, "before_daemon event found in resulting trace") |
| 98 | current_test += 1 |
| 99 | print_test_result(before_daemon_event_pid == parent_pid, current_test, "Parent pid reported in trace is correct") |
| 100 | current_test += 1 |
| 101 | print_test_result(before_daemon_event_found, current_test, "after_daemon event found in resulting trace") |
| 102 | current_test += 1 |
| 103 | print_test_result(after_daemon_event_pid == daemon_pid, current_test, "Daemon pid reported in trace is correct") |
| 104 | current_test += 1 |
| 105 | |
| 106 | shutil.rmtree(session_info.tmp_directory) |