+++ /dev/null
-#!/usr/bin/env python3
-# babeltrace_and_lttng.py
-#
-# Babeltrace and LTTng example script
-#
-# Copyright 2012 EfficiOS Inc.
-#
-# Author: Danny Serres <danny.serres@efficios.com>
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-# SOFTWARE.
-
-
-# This script uses both lttng-tools and babeltrace
-# python modules. It creates a session, enables
-# events, starts tracing for 2 seconds, stops tracing,
-# destroys the session and outputs the trace in the
-# specified output file.
-#
-# WARNING: will destroy any existing trace having
-# the same name as ses_name
-
-
-# ------------------------------------------------------
-ses_name = "babeltrace-lttng-test"
-trace_path = "/lttng-traces/babeltrace-lttng-trace/"
-out_file = "babeltrace-lttng-trace-text-output.txt"
-# ------------------------------------------------------
-
-
-import time
-try:
- import babeltrace.reader
- import lttng
-except ImportError:
- raise ImportError( "both babeltrace and lttng-tools "
- "python modules must be installed")
-
-
-# Errors to raise if something goes wrong
-class LTTngError(Exception):
- pass
-
-
-class BabeltraceError(Exception):
- pass
-
-
-# LTTNG-TOOLS
-
-# Making sure session does not already exist
-lttng.destroy(ses_name)
-
-# Creating a new session and handle
-ret = lttng.create(ses_name, trace_path)
-if ret < 0:
- raise LTTngError(lttng.strerror(ret))
-
-domain = lttng.Domain()
-domain.type = lttng.DOMAIN_KERNEL
-
-han = None
-han = lttng.Handle(ses_name, domain)
-if han is None:
- raise LTTngError("Handle not created")
-
-
-# Enabling all events
-event = lttng.Event()
-event.type = lttng.EVENT_ALL
-event.loglevel_type = lttng.EVENT_LOGLEVEL_ALL
-ret = lttng.enable_event(han, event, None)
-if ret < 0:
- raise LTTngError(lttng.strerror(ret))
-
-# Start, wait, stop
-ret = lttng.start(ses_name)
-if ret < 0:
- raise LTTngError(lttng.strerror(ret))
-print("Tracing...")
-time.sleep(2)
-print("Stopped.")
-ret = lttng.stop(ses_name)
-if ret < 0:
- raise LTTngError(lttng.strerror(ret))
-
-
-# Destroying tracing session
-ret = lttng.destroy(ses_name)
-if ret < 0:
- raise LTTngError(lttng.strerror(ret))
-
-
-# BABELTRACE
-
-# Create TraceCollecion and add trace:
-traces = babeltrace.reader.TraceCollection()
-ret = traces.add_trace(trace_path + "/kernel", "ctf")
-if ret is None:
- raise BabeltraceError("Error adding trace")
-
-# Reading events from trace
-# and outputting timestamps and event names
-# in out_file
-print("Writing trace file...")
-output = open(out_file, "wt")
-
-for event in traces.events:
- output.write("TS: {}, {} : {}\n".format(
- event.timestamp, event.cycles, event.name))
-
-# Closing file
-output.close()
-
-print("Done.")
projects / babeltrace.git / blobdiff