3 # Copyright (C) 2013 Jérémie Galarneau <jeremie.galarneau@efficios.com>
5 # SPDX-License-Identifier: GPL-2.0-only
16 # Import lttng bindings generated in the current tree
17 lttng_bindings_path
= os
.path
.dirname(os
.path
.abspath(__file__
)) + "/"
19 lttng_bindings_path
= os
.path
.dirname(lttng_bindings_path
)
20 lttng_bindings_path
= lttng_bindings_path
+ "/extras/bindings/swig/python"
21 lttng_bindings_libs_path
= lttng_bindings_path
+ "/.libs"
22 sys
.path
.append(lttng_bindings_path
)
23 sys
.path
.append(lttng_bindings_libs_path
)
27 if os
.getenv("TAP_AUTOTIME", "1") == "" or os
.getenv("TAP_AUTOTIME", "1") == "0":
29 _last_time
= time
.monotonic_ns()
31 BABELTRACE_BIN
="babeltrace2"
34 def __init__(self
, handle
, session_name
, tmp_directory
, channel_name
):
36 self
.name
= session_name
37 self
.tmp_directory
= tmp_directory
38 self
.trace_path
= tmp_directory
+ "/" + session_name
39 self
.channel_name
= channel_name
41 def bail(diag
, session_info
= None):
45 if session_info
is not None:
46 stop_session(session_info
, True)
48 if os
.path
.exists(session_info
.tmp_directory
):
49 shutil
.rmtree(session_info
.tmp_directory
)
52 def print_automatic_test_timing():
57 duration_ns
= time
.monotonic_ns() - _last_time
58 print(" ---\n duration_ms: {:02f}\n ...".format(duration_ns
/ 1_000_000))
59 _last_time
= time
.monotonic_ns()
61 def print_test_result(result
, number
, description
):
66 result_string
= "not ok"
68 result_string
+= " {0} - {1}".format(number
, description
)
70 print_automatic_test_timing()
72 def skip_test(number
, description
):
73 print('ok {} # skip {}'.format(number
, description
))
74 print_automatic_test_timing()
76 def enable_ust_tracepoint_event(session_info
, event_name
):
78 event
.name
= event_name
79 event
.type = EVENT_TRACEPOINT
80 event
.loglevel
= EVENT_LOGLEVEL_ALL
81 res
= enable_event(session_info
.handle
, event
, session_info
.channel_name
)
83 bail("Failed to enable userspace event " + event_name
, session_info
)
89 session_name
= str(uuid
.uuid1())
90 tmp_directory
= tempfile
.mkdtemp()
91 trace_path
= tmp_directory
+ "/" + session_name
93 res
= create(session_name
, trace_path
)
95 bail("Failed to create recording session.")
98 channel
.name
= "channel0"
99 channel_set_default_attr(dom
, channel
.attr
)
101 han
= Handle(session_name
, dom
)
102 res
= enable_channel(han
, channel
)
104 session_info
= SessionInfo(han
, session_name
, tmp_directory
, channel
.name
)
106 bail("Failed to enable channel " + channel
.name
, session_info
)
109 def start_session(session_info
):
110 start(session_info
.name
)
112 def stop_session(session_info
, bailing
= False):
113 # Workaround lttng-ctl outputing directly to stdout by spawning a subprocess.
114 lttng_binary_path
= os
.path
.dirname(os
.path
.abspath(__file__
)) + "/"
116 lttng_binary_path
= os
.path
.dirname(lttng_binary_path
)
117 lttng_binary_path
= lttng_binary_path
+ "/src/bin/lttng/lttng"
119 retcode
= subprocess
.call([lttng_binary_path
, "stop", session_info
.name
], stdout
=subprocess
.PIPE
, stderr
=subprocess
.PIPE
)
120 if retcode
!= 0 and not bailing
:
121 bail("Unable to stop session " + session_info
.name
, session_info
)
122 destroy(session_info
.name
)
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