/usr/bin/speedometer is in speedometer 2.8-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# speedometer.py
# Copyright (C) 2001-2011 Ian Ward
#
# This module is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This module is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
__version__ = "2.8"
import time
import sys
import os
import string
import math
import re
__usage__ = """Usage: speedometer [options] tap [[-c] tap]...
Monitor network traffic or speed/progress of a file transfer. At least one
tap must be entered. -c starts a new column, otherwise taps are piled
vertically.
Taps:
-f filename [size] display download speed [with progress bar]
-r network-interface display bytes received on network-interface
-t network-interface display bytes transmitted on network-interface
-c start a new column for following tap arguments
Options:
-b use old blocky display instead of smoothed
display even when UTF-8 encoding is detected
(use this if you see strange characters)
-i interval-in-seconds eg. "5" or "0.25" default: "1"
-k (1|16|88|256) set the number of colors this terminal
supports (default 16)
-l use linear charts instead of logarithmic
you will VERY LIKELY want to set -m as well
-m chart-maximum set the maximum bytes/second displayed on
the chart (default 2^32)
-n chart-minimum set the minimum bytes/second displayed on
the chart (default 32)
-p use original plain-text display (one tap only)
-s use bits/s instead of bytes/s
-x exit when files reach their expected size
-z report zero size on files that don't exist
instead of waiting for them to be created
Note: -rx and -tx are accepted as aliases for -r and -t for compatibility
with earlier releases of speedometer. -f may be also omitted for similar
reasons.
"""
__urwid_info__ = """
Speedometer requires Urwid 0.9.9.1 or later when not using plain-text display.
Urwid may be downloaded from: http://excess.org/urwid/
Urwid may be installed system-wide or in the same directory as speedometer.
"""
INITIAL_DELAY = 0.5 # seconds
INTERVAL_DELAY = 1.0 # seconds
VALID_NUM_COLORS = (1, 16, 88, 256)
# FIXME: these globals are becoming a pain
# time for more encapsulation, maybe even per-chart settings?
logarithmic_scale = True
units_per_second = 'bytes'
chart_minimum = 2**5
chart_maximum = 2**32
graph_scale = None
def update_scale():
"""
parse_args has set chart min/max, units_per_second and logarithmic_scale
use those settings to generate a scale of values for the LHS of the graph
"""
global graph_scale
if logarithmic_scale:
# be lazy and just use the same scale we always have
predefined = {
'bytes': [
(2**10, ' 1KiB\n /s'),
(2**15, '32KiB\n /s'),
(2**20, ' 1MiB\n /s'),
(2**25, '32MiB\n /s'),
(2**30, ' 1GiB\n /s'),
], 'bits': [
(2**7, ' 1Kib\n /s'),
(2**12, '32Kib\n /s'),
(2**17, ' 1Mib\n /s'),
(2**22, '32Mib\n /s'),
(2**27, ' 1Gib\n /s'),
]}
graph_scale = [(s, label) for s, label in
predefined[units_per_second] if chart_minimum < s < chart_maximum]
return
# linear, we need to generate one
granularity = math.log(graph_range(), 2)
granularity -= 2 # magic number, creates at least 4 lines on the scale
granularity = 2**int(granularity) # only want proper powers of two
n, r = divmod(chart_minimum, granularity)
n = n * granularity + (granularity if r else 0)
graph_scale = []
while n < chart_maximum:
graph_scale.append((n, readable_speed(n)))
n += granularity
def graph_min():
return math.log(chart_minimum,2) if logarithmic_scale else chart_minimum
def graph_max():
return math.log(chart_maximum,2) if logarithmic_scale else chart_maximum
def graph_range(): return graph_max() - graph_min()
def graph_lines_captions():
s = graph_scale
if logarithmic_scale:
s = [(math.log(x, 2), cap) for x, cap in s]
# XXX: quick hack to make this work like it used to
delta = graph_min()
s = [(x - delta, cap) for x, cap in s]
return list(reversed(s))
def graph_lines(): return [x[0] for x in graph_lines_captions()]
URWID_IMPORTED = False
URWID_UTF8 = False
try:
import urwid
if urwid.VERSION >= (0, 9, 9, 1):
URWID_IMPORTED = True
URWID_UTF8 = urwid.get_encoding_mode() == "utf8"
except (ImportError, AttributeError):
pass
class Speedometer:
def __init__(self,maxlog=5):
"""speedometer(maxlog=5)
maxlog is the number of readings that will be stored"""
self.log = []
self.start = None
self.maxlog = maxlog
def get_log(self):
return self.log
def update(self, bytes):
"""update(bytes) => None
add a byte reading to the log"""
t = time.time()
reading = (t,bytes)
if not self.start: self.start = reading
self.log.append(reading)
self.log = self.log[ - (self.maxlog+1):]
def delta(self, readings=0, skip=0):
"""delta(readings=0) -> time passed, byte increase
if readings is 0, time since start is given
don't include the last 'skip' readings
None is returned if not enough data available"""
assert readings >= 0
assert readings <= self.maxlog, "Log is not long enough to satisfy request"
assert skip >= 0
if skip > 0: assert readings > 0, "Can't skip when reading all"
if skip > len(self.log)-1: return # not enough data
current = self.log[-1 -skip]
target = None
if readings == 0: target = self.start
elif len(self.log) > readings+skip:
target = self.log[-(readings+skip+1)]
if not target: return # not enough data
if target == current: return
byte_increase = current[1]-target[1]
time_passed = current[0]-target[0]
return time_passed, byte_increase
def speed(self, *l, **d):
d = self.delta(*l, **d)
if d:
return delta_to_speed(d)
class EndOfData(Exception):
pass
class MultiGraphDisplay:
def __init__(self, cols, urwid_ui, exit_on_complete):
smoothed = urwid_ui == "smoothed"
self.displays = []
l = []
for c in cols:
a = []
for tap in c:
if tap.ftype == 'file_exp':
d = GraphDisplayProgress(tap, smoothed)
else:
d = GraphDisplay(tap, smoothed)
a.append(d)
self.displays.append(d)
l.append(a)
graphs = urwid.Columns([urwid.Pile(a) for a in l], 1)
graphs = urwid.AttrWrap(graphs, 'background')
title = urwid.Text("Speedometer "+__version__)
title = urwid.AttrWrap(urwid.Filler(title), 'title')
self.top = urwid.Overlay(title, graphs,
('fixed left', 5), 16, ('fixed top', 0), 1)
self.urwid_ui = urwid_ui
self.exit_on_complete = exit_on_complete
palette = [
# name, 16-color fg, bg, mono fg, 88/256-color fg, bg
# main bar graph
('background', 'dark gray', '', '', '#008', '#ddb',),
('bar:top', 'dark cyan', '', '', '#488', '#ddb'),
('bar', '', 'dark cyan','standout', '#008', '#488'),
('bar:num', '', '', '', '#066', '#ddb'),
# latest "curved" + average bar graph at right side
('ca:background', '', '', '', 'g66', '#ddb'),
('ca:c:top', 'dark blue', '', '', '#66d', '#ddb'),
('ca:c', '', 'dark blue','standout', 'g66', '#66d'),
('ca:c:num', 'light blue','', '', '#66d', '#ddb'),
('ca:a:top', 'light gray','', '', '#6b6', '#ddb'),
('ca:a', '', 'light gray','standout','g66', '#6b6'),
('ca:a:num', 'light gray','', 'bold', '#6b6', '#ddb'),
# text headings and numeric values displayed
('title', '', '', 'underline,bold', '#000', '#ddb'),
('reading', '', '', '', '#886', '#ddb'),
# progress bar
('pr:n', '', 'dark blue','', 'g11', '#bb6'),
('pr:c', '', 'dark green','standout','g11', '#fd0'),
('pr:cn', 'dark green','dark blue','', '#fd0', '#bb6'),
]
def main(self, num_colors):
self.loop = urwid.MainLoop(self.top, palette=self.palette,
unhandled_input=self.unhandled_input)
self.loop.screen.set_terminal_properties(colors=num_colors)
try:
pending = self.update_readings()
if self.exit_on_complete and pending == 0: return
except EndOfData:
return
time.sleep(INITIAL_DELAY)
self.update_callback()
self.loop.run()
def unhandled_input(self, key):
"Exit on Q or ESC"
if key in ('q', 'Q', 'esc'):
raise urwid.ExitMainLoop()
def update_callback(self, *args):
next_call_in = INTERVAL_DELAY
if isinstance(time, SimulatedTime):
next_call_in = 0
time.sleep(INTERVAL_DELAY) # update simulated time
self.loop.set_alarm_in(next_call_in, self.update_callback)
try:
pending = self.update_readings()
if self.exit_on_complete and pending == 0: return
except EndOfData:
self.end_of_data()
raise urwid.ExitMainLoop()
def update_readings(self):
pending = 0
for d in self.displays:
if d.update_readings(): pending += 1
return pending
def end_of_data(self):
# pause for taking screenshot of simulated data
if isinstance(time, SimulatedTime):
while not self.loop.screen.get_input():
pass
class GraphDisplay:
def __init__(self,tap, smoothed):
if smoothed:
self.speed_graph = SpeedGraph(
['background','bar'],
['background','bar'],
{(1,0):'bar:top'})
self.cagraph = urwid.BarGraph(
['ca:background', 'ca:c', 'ca:a'],
['ca:background', 'ca:c', 'ca:a'],
{(1,0):'ca:c:top', (2,0):'ca:a:top', })
else:
self.speed_graph = SpeedGraph([
('background', ' '), ('bar', ' ')],
['background', 'bar'])
self.cagraph = urwid.BarGraph([
('ca:background', ' '),
('ca:c',' '),
('ca:a',' '),]
)
self.last_reading = urwid.Text("",align="right")
scale = urwid.GraphVScale(graph_lines_captions(), graph_range())
footer = self.last_reading
graph_cols = urwid.Columns([('fixed', 5, scale),
self.speed_graph, ('fixed', 4, self.cagraph)],
dividechars = 1)
self.top = urwid.Frame(graph_cols, footer=footer)
self.spd = Speedometer(6)
self.feed = tap.feed
self.description = tap.description()
def selectable(self):
return False
def render(self, size, focus=False):
return self.top.render(size,focus)
def update_readings(self):
f = self.feed()
if f is None: raise EndOfData
self.spd.update(f)
s = self.spd.speed(1) # last sample
c = curve(self.spd) # "curved" reading
a = self.spd.speed() # running average
self.speed_graph.append_log(s)
self.last_reading.set_text([
('title', [self.description, " "]),
('bar:num', [readable_speed(s), " "]),
('ca:c:num',[readable_speed(c), " "]),
('ca:a:num',readable_speed(a)) ])
self.cagraph.set_data([
[speed_scale(c),0],
[0,speed_scale(a)],
], graph_range())
class GraphDisplayProgress(GraphDisplay):
def __init__(self, tap, smoothed):
GraphDisplay.__init__(self, tap, smoothed)
self.spd = FileProgress(6, tap.expected_size)
if smoothed:
self.pb = urwid.ProgressBar('pr:n','pr:c',0,
tap.expected_size, 'pr:cn')
else:
self.pb = urwid.ProgressBar('pr:n','pr:c',0,
tap.expected_size)
self.est = urwid.Text("")
pbest = urwid.Columns([self.pb,('fixed',10,self.est)], 1)
newfoot = urwid.Pile([self.top.footer, pbest])
self.top.footer = newfoot
def update_readings(self):
GraphDisplay.update_readings(self)
current, expected = self.spd.progress()
self.pb.set_completion(current)
e = self.spd.completion_estimate()
if e is not None:
self.est.set_text(readable_time(e,10))
return current < expected
class SpeedGraph:
def __init__(self, attlist, hatt=None, satt=None):
if satt is None:
self.graph = urwid.BarGraph(attlist, hatt)
else:
self.graph = urwid.BarGraph(attlist, hatt, satt)
# override BarGraph's get_data
self.graph.get_data = self.get_data
self.smoothed = satt is not None
self.log = []
self.bar = []
def get_data(self, (maxcol,maxrow)):
bar = self.bar[-maxcol:]
if len(bar) < maxcol:
bar = [[0]]*(maxcol-len(bar)) + bar
return bar, graph_range(), graph_lines()
def selectable(self):
return False
def render(self, (maxcol, maxrow), focus=False):
left = max(0, len(self.log)-maxcol)
pad = maxcol-(len(self.log)-left)
topl = self.local_maximums(pad, left)
yvals = [ max(self.bar[i]) for i in topl ]
yvals = urwid.scale_bar_values(yvals, graph_range(), maxrow)
graphtop = self.graph
for i,y in zip(topl, yvals):
s = self.log[ i ]
txt = urwid.Text(readable_speed(s))
label = urwid.AttrWrap(urwid.Filler(txt), 'reading')
graphtop = urwid.Overlay(label, graphtop,
('fixed left', pad+i-4-left), 10,
('fixed top', max(0,y-2)), 1)
return graphtop.render((maxcol, maxrow), focus)
def local_maximums(self, pad, left):
"""
Generate a list of indexes for the local maximums in self.log
"""
ldist, rdist = 4,5
l = self.log
if len(l) <= ldist+rdist:
return []
dist = ldist+rdist
highs = []
for i in range(left+max(0, ldist-pad),len(l)-rdist+1):
li = l[i]
if li == 0: continue
if i and l[i-1]>=li: continue
if l[i+1]>li: continue
highs.append((li, -i))
highs.sort()
highs.reverse()
tag = [False]*len(l)
out = []
for li, i in highs:
i=-i
if tag[i]: continue
for k in range(max(0,i-dist), min(len(l),i+dist)):
tag[k]=True
out.append(i)
return out
def append_log(self, s):
x = speed_scale(s)
o = [x]
self.bar = self.bar[-300:] + [o]
self.log = self.log[-300:] + [s]
def speed_scale(s):
if s <= 0: return 0
if logarithmic_scale:
s = math.log(s, 2)
s = min(graph_range(), max(0, s-graph_min()))
return s
def delta_to_speed(delta):
"""delta_to_speed(delta) -> speed in bytes per second"""
time_passed, byte_increase = delta
if time_passed <= 0: return 0
if long(time_passed*1000) == 0: return 0
return long(byte_increase*1000)/long(time_passed*1000)
def readable_speed(speed):
"""
readable_speed(speed) -> string
speed is in bytes per second
returns a readable version of the speed given
"""
if speed == None or speed < 0: speed = 0
units = "B/s ", "KiB/s", "MiB/s", "GiB/s", "TiB/s"
step = 1L
for u in units:
if step > 1:
s = "%4.2f " %(float(speed)/step)
if len(s) <= 5: return s + u
s = "%4.1f " %(float(speed)/step)
if len(s) <= 5: return s + u
if speed/step < 1024:
return "%4d " %(speed/step) + u
step = step * 1024L
return "%4d " % (speed/(step/1024)) + units[-1]
def readable_speed_bits(speed):
"""
bits/s version of readable_speed()
"""
if speed == None or speed < 0: speed = 0
speed = speed * 8
units = "b/s ", "Kib/s", "Mib/s", "Gib/s", "Tib/s"
step = 1L
for u in units:
if step > 1:
s = "%4.2f " %(float(speed)/step)
if len(s) <= 5: return s + u
s = "%4.1f " %(float(speed)/step)
if len(s) <= 5: return s + u
if speed/step < 1024:
return "%4d " %(speed/step) + u
step = step * 1024L
return "%4d " % (speed/(step/1024)) + units[-1]
def graphic_speed(speed):
"""graphic_speed(speed) -> string
speed is bytes per second
returns a graphic representing given speed"""
if speed == None: speed = 0
speed_val = [0]+[int(2**(x*5.0/3)) for x in range(20)]
speed_gfx = [
r"\ ",
r".\ ",
r"..\ ",
r"...\ ",
r"...:\ ",
r"...::\ ",
r"...:::\ ",
r"...:::+| ",
r"...:::++| ",
r"...:::+++| ",
r"...:::+++#| ",
r"...:::+++##| ",
r"...:::+++###| ",
r"...:::+++###%| ",
r"...:::+++###%%/ ",
r"...:::+++###%%%/ ",
r"...:::+++###%%%// ",
r"...:::+++###%%%/// ",
r"...:::+++###%%%//// ",
r"...:::+++###%%%///// ",
r"...:::+++###%%%//////",
]
for i in range(len(speed_val)-1):
low, high = speed_val[i], speed_val[i+1]
if speed > high: continue
if speed - low < high - speed:
return speed_gfx[i]
else:
return speed_gfx[i+1]
return speed_gfx[-1]
def file_size_feed(filename):
"""file_size_feed(filename) -> function that returns given file's size"""
def sizefn(filename=filename,os=os):
try:
return os.stat(filename)[6]
except:
return 0
return sizefn
def network_feed(device,rxtx):
"""network_feed(device,rxtx) -> function that returns given device stream speed
rxtx is "RX" or "TX"
"""
assert rxtx in ["RX","TX"]
r = re.compile(r"^\s*" + re.escape(device) + r":(.*)$", re.MULTILINE)
def networkfn(devre=r,rxtx=rxtx):
f = open('/proc/net/dev')
dev_lines = f.read()
f.close()
match = devre.search(dev_lines)
if not match:
return None
parts = match.group(1).split()
if rxtx == 'RX':
return long(parts[0])
else:
return long(parts[8])
return networkfn
def simulated_feed(data):
total = 0
adjusted_data = [0]
for d in data:
d = int(d)
adjusted_data.append(d + total)
total += d
def simfn(data=adjusted_data):
if data:
return long(data.pop(0))
return None
return simfn
class SimulatedTime:
def __init__(self, start):
self.t = start
def sleep(self, length):
self.t += length
def time(self):
return self.t
class FileProgress:
"""FileProgress monitors a file's size vs time and expected size to
produce progress and estimated completion time readings"""
samples_for_estimate = 4
def __init__(self, maxlog, expected_size):
"""FileProgress(expected_size)
expected_size is the file's expected size in bytes"""
self.expected_size = expected_size
self.speedometer = Speedometer(maxlog)
self.current_size = None
self.speed = self.speedometer.speed
self.delta = self.speedometer.delta
def update(self, current_size):
"""update(current_size)
current_size is the current file size
update will record the current size and time"""
self.current_size = current_size
self.speedometer.update(self.current_size)
def progress(self):
"""progress() -> (current size, expected size)
current size will be None until update is called"""
return self.current_size, self.expected_size
def completion_estimate(self):
"""completion_estimate() -> estimated seconds remaining
will return None if not enough data is available"""
d = self.speedometer.delta(self.samples_for_estimate)
if not d: return None # not enough readings
(seconds,bytes) = d
if bytes <= 0: return None # currently stalled
remaining = self.expected_size - self.current_size
if remaining <= 0: return 0 # all done -- no time remaining
seconds_left = float(remaining)*seconds/bytes
return seconds_left
def average_speed(self):
"""average_speed() -> bytes per second since start
will return None if not enough data"""
return self.speedometer.speed()
def current_speed(self):
"""current_speed() -> latest bytes per second reading
will return None if not enough data"""
return self.speedometer.speed(1)
def graphic_progress(progress, columns):
"""graphic_progress(progress, columns) -> string
progress is a tuple of (value, max)
columns is length of string returned
returns a graphic representation of value vs. max"""
value, max = progress
f = float(value) / float(max)
if f > 1: f = 1
if f < 0: f = 0
filled = int(f*columns)
gfx = "#" * filled + "-" * (columns-filled)
return gfx
def time_as_units(seconds):
"""time_units(seconds) -> list of (count, suffix) tuples
returns a unit breakdown for the given number of seconds"""
if seconds==None: seconds=0
# (multiplicative factor, suffix)
units = (1,"s"), (60,"m"), (60,"h"), (24,"d"), (7,"w"), (52,"y")
scale = 1L
topunit = -1
# find the top unit to use
for mul, suf in units:
if seconds / (scale*mul) < 1: break
topunit = topunit+1
scale = scale * mul
# build the list reading backwards from top unit
out = []
for i in range(topunit, -1, -1):
mul,suf = units[i]
value = int(seconds/scale)
seconds = seconds - value * scale
scale = scale / mul
out.append((value, suf))
return out
def readable_time(seconds, columns=None):
"""readable_time(seconds, columns=None) -> string
return the seconds as a readable string
if specified, columns is the maximum length of the returned string"""
out = ""
for value, suf in time_as_units(seconds):
new_out = out
if out: new_out = new_out + ' '
new_out = new_out + `value` + suf
if columns and len(new_out) > columns: break
out = new_out
return out
class ArgumentError(Exception):
pass
def console():
"""Console mode"""
try:
cols, urwid_ui, zero_files, exit_on_complete, num_colors = parse_args()
except ArgumentError:
sys.stderr.write(__usage__)
if not URWID_IMPORTED:
sys.stderr.write(__urwid_info__)
sys.stderr.write("""
Python Version: %d.%d
Urwid >= 0.9.9.1 detected: %s UTF-8 encoding detected: %s
""" % (sys.version_info[:2] + (["NO","yes"][URWID_IMPORTED],) +
(["NO","yes"][URWID_UTF8],)))
return
update_scale()
if zero_files:
for c in cols:
a = []
for tap in c:
if hasattr(tap, 'report_zero'):
tap.report_zero()
try:
# wait for every tap to be able to read
wait_all(cols)
except KeyboardInterrupt:
return
# plain-text mode
if not urwid_ui:
[[tap]] = cols
if tap.ftype == 'file_exp':
do_progress(tap.feed, tap.expected_size, exit_on_complete)
else:
do_simple(tap.feed)
return
do_display(cols, urwid_ui, exit_on_complete, num_colors)
def do_display(cols, urwid_ui, exit_on_complete, num_colors):
mg = MultiGraphDisplay(cols, urwid_ui, exit_on_complete)
mg.main(num_colors)
class FileTap:
def __init__(self, name):
self.ftype = 'file'
self.file_name = name
self.feed = file_size_feed(name)
self.wait = True
def set_expected_size(self, size):
self.expected_size = long(size)
self.ftype = 'file_exp'
def report_zero(self):
self.wait = False
def description(self):
return "FILE: "+ self.file_name
def wait_creation(self):
if not self.wait:
return
if not os.path.exists(self.file_name):
sys.stdout.write("Waiting for '%s' to be created...\n"
% self.file_name)
while not os.path.exists(self.file_name):
time.sleep(1)
class NetworkTap:
def __init__(self, rxtx, interface):
self.ftype = rxtx
self.interface = interface
self.feed = network_feed(interface, rxtx)
def description(self):
return self.ftype+": "+self.interface
def wait_creation(self):
if self.feed() is None:
sys.stdout.write("Waiting for network statistics from "
"interface '%s'...\n" % self.interface)
while self.feed() == None:
time.sleep(1)
def parse_args():
args = sys.argv[1:]
tap = None
if URWID_UTF8:
urwid_ui = 'smoothed'
elif URWID_IMPORTED:
urwid_ui = 'blocky'
else:
urwid_ui = False
zero_files = False
interval_set = False
exit_on_complete = False
num_colors = 16
colors_set = False
cols = []
taps = []
def push_tap(tap, taps):
if tap is None: return
taps.append(tap)
i = 0
while i < len(args):
op = args[i]
if op in ("-h","--help"):
raise ArgumentError
elif op in ("-i","-r","-rx","-t","-tx","-f","-k","-m","-n"):
# combine two part arguments with the following argument
try:
if op != "-f": # keep support for -f being optional
args[i+1] = op + args[i+1]
except IndexError:
raise ArgumentError
push_tap(tap, taps)
tap = None
elif op == "-S":
# undocumented simulation option
simargs = []
i += 1
while i < len(args) and args[i][:1] != "-":
simargs.append(args[i])
i += 1
simulate = tap
if not simulate:
simulate = taps[-1]
simulate.feed = simulated_feed(simargs)
global time
time = SimulatedTime(time.time())
continue
elif op == "-p":
# disable urwid ui
urwid_ui = False
elif op == "-b":
urwid_ui = 'blocky'
elif op == "-s":
global readable_speed
global units_per_second
readable_speed = readable_speed_bits
units_per_second = 'bits'
elif op == "-x":
exit_on_complete = True
elif op == "-z":
zero_files = True
elif op[:2] == "-k":
if colors_set: raise ArgumentError
try:
num_colors = int(op[2:])
assert num_colors in VALID_NUM_COLORS
except:
raise ArgumentError
colors_set = True
elif op[:2] == "-i":
if interval_set: raise ArgumentError
global INTERVAL_DELAY
global INITIAL_DELAY
try:
INTERVAL_DELAY = float(op[2:])
except:
raise ArgumentError
if INTERVAL_DELAY<INITIAL_DELAY:
INITIAL_DELAY=INTERVAL_DELAY
interval_set = True
elif op == "-l":
global logarithmic_scale
logarithmic_scale = False
elif op.startswith("-m"):
global chart_maximum
try:
chart_maximum = int(op[2:])
except:
raise ArgumentError
elif op.startswith("-n"):
global chart_minimum
try:
chart_minimum = int(op[2:])
except:
raise ArgumentError
elif op.startswith("-rx"):
push_tap(tap, taps)
tap = NetworkTap("RX", op[3:])
elif op.startswith("-r"):
push_tap(tap, taps)
tap = NetworkTap("RX", op[2:])
elif op.startswith("-tx"):
push_tap(tap, taps)
tap = NetworkTap("TX", op[3:])
elif op.startswith("-t"):
push_tap(tap, taps)
tap = NetworkTap("TX", op[2:])
elif op == "-c":
push_tap(tap, taps)
if not taps:
raise ArgumentError
cols.append(taps)
taps = []
tap = None
elif tap == None:
tap = FileTap(op)
elif tap and tap.ftype == 'file':
try:
tap.set_expected_size(op)
push_tap(tap, taps)
tap = None
except:
raise ArgumentError
else:
raise ArgumentError
i += 1
if urwid_ui and not URWID_IMPORTED:
raise ArgumentError
push_tap(tap, taps)
if not urwid_ui and (len(taps)>1 or cols):
raise ArgumentError
if not taps:
raise ArgumentError
cols.append(taps)
if chart_maximum <= chart_minimum:
raise ArgumentError
return cols, urwid_ui, zero_files, exit_on_complete, num_colors
def do_simple(feed):
try:
spd = Speedometer(6)
f = feed()
if f is None: return
spd.update(f)
time.sleep(INITIAL_DELAY)
while 1:
f = feed()
if f is None: return
spd.update(f)
s = spd.speed(1) # last sample
c = curve(spd) # "curved" reading
a = spd.speed() # running average
show(s,c,a)
time.sleep(INTERVAL_DELAY)
except KeyboardInterrupt:
pass
def curve(spd):
"""Try to smooth speed fluctuations"""
val = [6, 5, 4, 3, 2, 1] # speed sampling relative weights
wtot = 0 # total weighting
ws = 0.0 # weighted speed
for i in range(len(val)):
d = spd.delta(1,i)
if d==None:
break # ran out of data
t, b = d
v = val[i]
wtot += v
ws += float(b)*v/t
return delta_to_speed((wtot, ws))
def show(s, c, a, out = sys.stdout.write):
out(readable_speed(s))
out(" c:" + readable_speed(c))
out(" A:" + readable_speed(a))
out(" (" + graphic_speed(s)+")")
out('\n')
def do_progress(feed, size, exit_on_complete):
try:
fp = FileProgress(4, long(size))
out = sys.stdout.write
f = feed()
if f is None: return
fp.update(f)
time.sleep(INITIAL_DELAY)
while 1:
f = feed()
if f is None: return
fp.update(f)
out('('+graphic_speed(fp.current_speed())+')')
out(readable_speed(fp.current_speed()))
out(' ['+graphic_progress(fp.progress(), 36)+']')
out(' '+readable_time(fp.completion_estimate()))
out('\n')
current, expected = fp.progress()
if exit_on_complete and current >= expected: break
time.sleep(INTERVAL_DELAY)
except KeyboardInterrupt:
pass
def wait_all(cols):
for c in cols:
for tap in c:
tap.wait_creation()
if __name__ == "__main__":
try:
console()
except KeyboardInterrupt, err:
pass
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