3 # Copyright (C) 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
5 # SPDX-License-Identifier: GPL-2.0-only
15 # Import lttng bindings generated in the current tree
16 lttng_bindings_path
= os
.path
.dirname(os
.path
.abspath(__file__
)) + "/"
18 lttng_bindings_path
= os
.path
.dirname(lttng_bindings_path
)
19 lttng_bindings_path
= lttng_bindings_path
+ "/extras/bindings/swig/python"
20 lttng_bindings_libs_path
= lttng_bindings_path
+ "/.libs"
21 sys
.path
.append(lttng_bindings_path
)
22 sys
.path
.append(lttng_bindings_libs_path
)
25 BABELTRACE_BIN
="babeltrace2"
28 def __init__(self
, handle
, session_name
, tmp_directory
, channel_name
):
30 self
.name
= session_name
31 self
.tmp_directory
= tmp_directory
32 self
.trace_path
= tmp_directory
+ "/" + session_name
33 self
.channel_name
= channel_name
35 def bail(diag
, session_info
= None):
39 if session_info
is not None:
40 stop_session(session_info
, True)
42 if os
.path
.exists(session_info
.tmp_directory
):
43 shutil
.rmtree(session_info
.tmp_directory
)
46 def print_test_result(result
, number
, description
):
51 result_string
= "not ok"
53 result_string
+= " {0} - {1}".format(number
, description
)
56 def skip_test(number
, description
):
57 print('ok {} # skip {}'.format(number
, description
))
59 def enable_ust_tracepoint_event(session_info
, event_name
):
61 event
.name
= event_name
62 event
.type = EVENT_TRACEPOINT
63 event
.loglevel
= EVENT_LOGLEVEL_ALL
64 res
= enable_event(session_info
.handle
, event
, session_info
.channel_name
)
66 bail("Failed to enable userspace event " + event_name
, session_info
)
72 session_name
= str(uuid
.uuid1())
73 tmp_directory
= tempfile
.mkdtemp()
74 trace_path
= tmp_directory
+ "/" + session_name
75 trace_format_desc
= lttng_trace_format_ctf_1_descriptor_create()
77 session_descriptor
= lttng_session_descriptor_local_create(session_name
, trace_path
)
79 lttng_session_descriptor_set_trace_format_descriptor(session_descriptor
, trace_format_desc
)
81 res
= lttng_create_session_ext(session_descriptor
)
83 bail("Failed to create recording session.")
86 channel
.name
= "channel0"
87 channel_set_default_attr(dom
, channel
.attr
)
89 han
= Handle(session_name
, dom
)
90 res
= enable_channel(han
, channel
)
92 session_info
= SessionInfo(han
, session_name
, tmp_directory
, channel
.name
)
94 bail("Failed to enable channel " + channel
.name
, session_info
)
97 def start_session(session_info
):
98 start(session_info
.name
)
100 def stop_session(session_info
, bailing
= False):
101 # Workaround lttng-ctl outputing directly to stdout by spawning a subprocess.
102 lttng_binary_path
= os
.path
.dirname(os
.path
.abspath(__file__
)) + "/"
104 lttng_binary_path
= os
.path
.dirname(lttng_binary_path
)
105 lttng_binary_path
= lttng_binary_path
+ "/src/bin/lttng/lttng"
107 retcode
= subprocess
.call([lttng_binary_path
, "stop", session_info
.name
], stdout
=subprocess
.PIPE
, stderr
=subprocess
.PIPE
)
108 if retcode
!= 0 and not bailing
:
109 bail("Unable to stop session " + session_info
.name
, session_info
)
110 destroy(session_info
.name
)
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