Module RateLimiter

Limit the upload rate.

All the constants below are only for the automatic upload rate adjustment.

Classes

RateLimiter
Limit the upload rate.

Variables

logging.Logger logger = logging.getLogger('DebTorrent.RateLimiter')
the logger to send all log messages to for this module

float MAX_RATE_PERIOD = 20.0
maximum amount of time to guess the current rate estimate represents

float MAX_RATE = 100000000000.0
the (very large) limit to use to not limit the upload rate

float PING_BOUNDARY = 1.2
maximum ping time to consider still working

int PING_SAMPLES = 7
minimum number of pings to require

int PING_DISCARDS = 1
number of initial pings to discard

int PING_THRESHHOLD = 5
number of pings that exceed PING_BOUNDARY before the connection is assumed to be flooded

int PING_DELAY = 5
not used

int PING_DELAY_NEXT = 2
not used

float ADJUST_UP = 1.05
fraction to adjust up the upload rate by

float ADJUST_DOWN = 0.95
fraction to adjust down the upload rate by

int UP_DELAY_FIRST = 5
number of cycles after an adjust down before adjusting up the upload rate

int UP_DELAY_NEXT = 2
number of cycles after an adjust up before adjusting up the upload rate again

int SLOTS_STARTING = 6
the starting number of upload slots to use

float SLOTS_FACTOR = 0.00166
factor to use in calculating the number of upload slots

Imports: logging, binascii.b2a_hex, clock.clock, CurrentRateMeasure.Measure, cStringIO.StringIO, math.sqrt