wftimefilter is a TRACEBUF filtering module designed to sanitize incoming waveform packets that might be out of order or duplicated or overlapping. Below is a copy of the .d file with detailed notes on each parameter
# wftimefilter configuration file
# Basic Earthworm setup:
#-----------------------
MyModuleId MOD_WFTIMEFILTER # module id for this instance of wftimefilter
InRing RAW_RING # shared memory ring for input
OutRing WAVE_RING # shared memory ring for output
HeartbeatInt 30 # seconds between heartbeats to statmgr
LogFile 1 # 0 log to stderr/stdout only
# 1 log to stderr/stdout and to disk file
# 2 log to disk file only
# List the message logos to grab from InRing, WILDCARDs permitted.
# Multiple "GetLogo" commands are allowed, with no hardcoded limit.
# The four valid message types are:
# TYPE_TRACEBUF, TYPE_TRACEBUF2, TYPE_TRACE_COMP_UA, TYPE_TRACE2_COMP_UA
# Installation Module Message Types
#-----------------------------------------------------------------
GetLogo INST_WILDCARD MOD_WILDCARD TYPE_TRACEBUF2
# Waveform Filtering Parameters
#------------------------------
MaxMessageSize 4096 # length (bytes) of largest msg to be processed
UseOriginalInstId 1 # 0 apply wftimefilter's installationid to
# any messages that pass the test.
# non-zero means apply the original instid.
UseOriginalModId 0 # 0 apply wftimefilter's moduleid to
# any messages that pass the test
# non-zero means apply the original instid.
LogGap 0.0 # Minumum gap duration (seconds) for which we'll make
# a log entry.
TimeJumpTolerance 600 # (in seconds) This term is used to catch packets with
# dubious timestamps. If a time gap is detected in an
# incoming data stream, the new packet's timestamp is
# compared to the system clock. If it is later than
# the current system time by more than TimeJumpTolerance
# seconds, wftimefilter assumes the packet timestamp is
# bogus (it's in the future) and ignores the entire packet.
# NOTE: if you use this feature with small tolerances,
# the system clock must be kept on network time!!!
#
# Set to -1 if you never want to compare packet times
# to the system clock.
# Valid values are -1 or any number >= 0.0
#AllowChangesInSampleRate 1
# Set to 0 to disallow packets with a different sample-rate
# than the rate already observed for that channel.
#################################################################################
## LOGGING And STATUS Commands
#################################################################################
#LimitLoggingOfBadChannels 0
# Set to 1 to
# suppress log messages from channels that
# exceed the MaxPackets daily log thresholds.
# This way, one (or more) bad channel(s) will not generate a
# huge logfile.
#MaxPacketsToLogPerChannelPerDay 3
# If LimitLoggingOfBadChannels is enabled, then
# this is this number is the MAXIMUM number of
# filtered packets that will be logged per channel per day.
#MaxPacketsToLogPerWarningPerDay 3
# If LimitLoggingOfBadChannels is enabled, then
# this is this number is the MAXIMUM number of
# packet warnings that will be logged per channel per day.
# Currently, warnings issued for gaps between packets, and
# possibly changes in sample rate depending on the value
# of AllowChangesInSampleRate.
#LogDailySummary 0
# Set to 1 to log a daily summary of the packets processed
# and number of errors and warning generated per channel.
#IssueDailyStatusWithSummaryOfBadPackets 0
# Set to 1 to have program issue a STATUS ERROR message each day
# if bad packets are processed that day.
#LogOnlyChannelsWithProblems 0
# If LogDailySummary is set to 1, then set this param
# to 1 to cause only channels with problems to be logged
# in the daily summary.