Add 'tracetools_trace/' from commit '29b1c6d50b'

git-subtree-dir: tracetools_trace
git-subtree-mainline: 4d434fa182
git-subtree-split: 29b1c6d50b

tracetools_trace/tracetools_trace/trace.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python3
+# Entrypoint/script to setup and start an LTTng tracing session
+
+import os
+
+from tracetools_trace.tools import args
+from tracetools_trace.tools import lttng
+from tracetools_trace.tools import names
+
+
+def main():
+    params = args.parse_args()
+
+    session_name = params.session_name
+    base_path = params.path
+    full_path = os.path.join(base_path, session_name)
+    ros_events = params.events_ust
+    kernel_events = params.events_kernel
+
+    ust_enabled = len(ros_events) > 0
+    kernel_enabled = len(kernel_events) > 0
+    if ust_enabled:
+        print(f'UST tracing enabled ({len(ros_events)} events)')
+        if params.list:
+            print(f'\tevents: {ros_events}')
+    else:
+        print('UST tracing disabled')
+    if kernel_enabled:
+        print(f'kernel tracing enabled ({len(kernel_events)} events)')
+        if params.list:
+            print(f'\tevents: {kernel_events}')
+    else:
+        print('kernel tracing disabled')
+
+    print(f'writting tracing session to: {full_path}')
+    input('press enter to start...')
+    lttng.lttng_init(session_name, full_path, ros_events=ros_events, kernel_events=kernel_events)
+    input('press enter to stop...')
+
+    print('stopping & destroying tracing session')
+    lttng.lttng_fini(session_name)