functions.sh

#!/bin/bash
#set -x

# Prints the date difference of "start" and "end" date in milliseconds
function datediff {
   startsec=$(date -d "$1" +%s)
   while [[ $startsec = 0* ]]; do startsec=${startsec#0}; done

   endsec=$(date -d "$2" +%s)
   while [[ $endsec = 0* ]]; do endsec=${endsec#0}; done

   secdiff=$(($endsec - $startsec))

   startnano=$(date -d "$1" +%N)
   while [[ $startnano = 0* ]]; do startnano=${startnano#0}; done

   endnano=$(date -d "$2" +%N)
   while [[ $endnano = 0* ]]; do endnano=${endnano#0}; done
   nanosecdiff=$(($endnano - $startnano))

   echo $(((secdiff * 1000) + (nanosecdiff / 1000000)))
}

function mass_quote_ack_latency {
        grep "MassQuote" | tr '\1' '-' | awk 'match($0, "117=([0-9]*.[0-9]*)",ary) {printf("%s %s %s %s\n",$1,$2,ary[1],$6)}' | sort -nk4 | awk '!(NR%2){printf("%s %s %s %s\n",p,$1,$2,$3)}{p=$1" "$2}' | while read d1 t1 d2 t2 rate; do dt1="$d1 $t1"; dt2="$d2 $t2"; diff=$(datediff "$dt1" "$dt2"); printf "%s ms = (%s - %s) %s\n" "$diff" "$dt1" "$dt2" "$rate"; done
}