Added Python interpreter version directives and reorganized example scripts

[babeltrace.git] / bindings / python / examples / histogram.py

diff --git a/bindings/python/examples/histogram.py b/bindings/python/examples/histogram.py
deleted file mode 100644 (file)
index 44616a6..0000000
--- a/bindings/python/examples/histogram.py
+++ /dev/null
@@ -1,139 +0,0 @@
-# histogram.py
-# 
-# Babeltrace histogram 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 script checks the number of events in the trace
-# and outputs a table and a .svg histogram for the specified
-# range (microseconds) or the total trace if no range specified.
-# The graph is generated using the cairoplot module.
-
-import sys
-from babeltrace import *
-from output_format_modules import cairoplot
-from output_format_modules.pprint_table import pprint_table as pprint
-
-# ------------------------------------------------
-#              Output settings
-
-# number of intervals:
-nbDiv = 25     # Should not be over 150
-               # for usable graph output
-
-# table output stream (file-like object):
-out = sys.stdout
-# -------------------------------------------------
-
-if len(sys.argv) < 2 or len(sys.argv) > 4:
-       raise TypeError("Usage: python histogram.py [ start_time [end_time] ] path/to/trace")
-
-ctx = Context()
-ret = ctx.add_trace(sys.argv[len(sys.argv)-1], "ctf")
-if ret is None:
-       raise IOError("Error adding trace")
-
-# Check when to start/stop graphing
-sinceBegin = True
-beginTime = 0.0
-if len(sys.argv) > 2:
-       sinceBegin = False
-       beginTime = float(sys.argv[1])
-untilEnd = True
-if len(sys.argv) == 4:
-       untilEnd = False
-
-# Setting iterator
-bp = IterPos(SEEK_BEGIN)
-ctf_it = ctf.Iterator(ctx, bp)
-
-# Reading events
-event = ctf_it.read_event()
-start_time = event.get_timestamp()
-time = 0
-count = {}
-
-while(event is not None):
-       # Microsec.
-       time = (event.get_timestamp() - start_time)/1000.0
-
-       # Check if in range
-       if not sinceBegin:
-               if time < beginTime:
-                       # Next Event
-                       ret = ctf_it.next()
-                       if ret < 0:
-                               break
-                       event = ctf_it.read_event()
-                       continue
-       if not untilEnd:
-               if time > float(sys.argv[2]):
-                       break
-
-       # Counting events per timestamp:
-       if time in count:
-               count[time] += 1
-       else:
-               count[time] = 1
-
-       # Next Event
-       ret = ctf_it.next()
-       if ret < 0:
-               break
-       event = ctf_it.read_event()
-
-del ctf_it
-
-# Setting data for output
-interval = (time - beginTime)/nbDiv
-div_begin_time = beginTime
-div_end_time = beginTime + interval
-data = {}
-
-# Prefix for string sorting, considering
-# there should not be over 150 intervals.
-# This would work up to 9999 intervals.
-# If needed, add zeros.
-prefix = 0.0001
-
-while div_end_time <= time:
-       key = str(prefix) + '[' + str(div_begin_time) + ';' + str(div_end_time) + '['
-       for tmp in count:
-               if tmp >= div_begin_time and tmp < div_end_time:
-                       if key in data:
-                               data[key] += count[tmp]
-                       else:
-                               data[key] = count[tmp]
-       if not key in data:
-               data[key] = 0
-       div_begin_time = div_end_time
-       div_end_time += interval
-       # Prefix increment
-       prefix += 0.001
-
-table = []
-x_labels = []
-for key in sorted(data):
-       table.append([key[key.find('['):], data[key]])
-       x_labels.append(key[key.find('['):])
-
-# Table output
-table.insert(0, ["INTERVAL (us)", "COUNT"])
-pprint(table, 1, out)
-
-# Graph output
-cairoplot.vertical_bar_plot ( 'histogram.svg', data, 50 + 150*nbDiv, 50*nbDiv,
-       border = 20, display_values = True, grid = True,
-       x_labels = x_labels, rounded_corners = True )