4c8199c692a9982422cc8a28141f5247e4c7e82f
[babeltrace.git] / bindings / python / examples / sequence_test.py
1 #!/usr/bin/env python3
2 # sequence_test.py
3 #
4 # Babeltrace example script based on the Babeltrace API test script
5 #
6 # Copyright 2013 Xiaona Han
7 # Copyright 2012 EfficiOS Inc.
8 #
9 # Author: Danny Serres <danny.serres@efficios.com>
10 # Author: Xiaona Han <xiaonahappy13@163.com>
11 #
12 # Permission is hereby granted, free of charge, to any person obtaining a copy
13 # of this software and associated documentation files (the "Software"), to deal
14 # in the Software without restriction, including without limitation the rights
15 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
16 # copies of the Software, and to permit persons to whom the Software is
17 # furnished to do so, subject to the following conditions:
18 #
19 # The above copyright notice and this permission notice shall be included in
20 # all copies or substantial portions of the Software.
21
22 # This example uses the babeltrace python module
23 # to partially test the sequence API
24
25 import sys
26 from babeltrace import *
27
28 # Check for path arg:
29 if len(sys.argv) < 2:
30 raise TypeError("Usage: sequence_test.py path/to/file")
31
32 # Create context and add trace:
33 ctx = Context()
34 trace_handle = ctx.add_trace(sys.argv[1], "ctf")
35 if trace_handle is None:
36 raise IOError("Error adding trace")
37
38 # Listing events
39 lst = CTFReader.get_event_decl_list(trace_handle, ctx)
40 print("--- Event list ---")
41 for item in lst:
42 print("event : {}".format(item.get_name()))
43 print("--- Done ---")
44
45 # Iter trace
46 bp = IterPos(SEEK_BEGIN)
47 ctf_it = CTFReader.Iterator(ctx,bp)
48 event = ctf_it.read_event()
49
50 while(event is not None):
51 print("TS: {}, {} : {}".format(event.get_timestamp(),
52 event.get_cycles(), event.get_name()))
53 field = event.get_field("seq_int_field")
54 if field is not None:
55 print("int sequence values: {}". format(field[0].get_value()))
56 field = event.get_field("seq_long_field")
57 if field is not None:
58 print("long sequence values: {}". format(field[0].get_value()))
59
60 ret = ctf_it.next()
61 if ret < 0:
62 break
63 else:
64 event = ctf_it.read_event()
65
66 del ctf_it
This page took 0.029961 seconds and 3 git commands to generate.