Commit | Line | Data |
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300b4c33 | 1 | #!/usr/bin/env python2 |
24a3136a | 2 | # eventcount.py |
300b4c33 | 3 | # |
24a3136a | 4 | # Babeltrace event count example script |
300b4c33 | 5 | # |
24a3136a | 6 | # Copyright 2012 EfficiOS Inc. |
300b4c33 | 7 | # |
24a3136a | 8 | # Author: Danny Serres <danny.serres@efficios.com> |
300b4c33 | 9 | # |
24a3136a DS |
10 | # Permission is hereby granted, free of charge, to any person obtaining a copy |
11 | # of this software and associated documentation files (the "Software"), to deal | |
12 | # in the Software without restriction, including without limitation the rights | |
13 | # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 | # copies of the Software, and to permit persons to whom the Software is | |
15 | # furnished to do so, subject to the following conditions: | |
300b4c33 | 16 | # |
24a3136a DS |
17 | # The above copyright notice and this permission notice shall be included in |
18 | # all copies or substantial portions of the Software. | |
19 | ||
20 | # The script prints a count of specified events and | |
21 | # their related tid's in a given trace. | |
22 | # The trace needs TID context (lttng add-context -k -t tid) | |
23 | ||
24 | import sys | |
25 | from babeltrace import * | |
26 | from output_format_modules.pprint_table import pprint_table as pprint | |
27 | ||
28 | if len(sys.argv) < 3: | |
29 | raise TypeError("Usage: python eventcount.py event1 [event2 ...] path/to/trace") | |
30 | ||
31 | ctx = Context() | |
32 | ret = ctx.add_trace(sys.argv[len(sys.argv)-1], "ctf") | |
33 | if ret is None: | |
34 | raise IOError("Error adding trace") | |
35 | ||
36 | counts = {} | |
37 | ||
38 | # Setting iterator | |
39 | bp = IterPos(SEEK_BEGIN) | |
40 | ctf_it = ctf.Iterator(ctx, bp) | |
41 | ||
42 | # Reading events | |
43 | event = ctf_it.read_event() | |
44 | while(event is not None): | |
45 | for event_type in sys.argv[1:len(sys.argv)-1]: | |
46 | if event_type == event.get_name(): | |
47 | ||
48 | # Getting scope definition | |
49 | sco = event.get_top_level_scope(ctf.scope.STREAM_EVENT_CONTEXT) | |
50 | if sco is None: | |
51 | print("ERROR: Cannot get definition scope for {}".format( | |
52 | event.get_name())) | |
53 | continue | |
54 | ||
55 | # Getting TID | |
56 | tid_field = event.get_field(sco, "_tid") | |
57 | tid = tid_field.get_int64() | |
58 | ||
59 | if ctf.field_error(): | |
60 | print("ERROR: Missing TID info for {}".format( | |
61 | event.get_name())) | |
62 | continue | |
63 | ||
64 | tmp = (tid, event.get_name()) | |
65 | ||
66 | if tmp in counts: | |
67 | counts[tmp] += 1 | |
68 | else: | |
69 | counts[tmp] = 1 | |
70 | ||
71 | # Next event | |
72 | ret = ctf_it.next() | |
73 | if ret < 0: | |
74 | break | |
75 | event = ctf_it.read_event() | |
76 | ||
77 | del ctf_it | |
78 | ||
79 | # Appending data to table for output | |
80 | table = [] | |
81 | for item in counts: | |
82 | table.append([item[0], item[1], counts[item]]) | |
83 | table = sorted(table) | |
84 | table.insert(0,["TID", "EVENT", "COUNT"]) | |
85 | pprint(table, 2) |