gpolitis

% original author Thomas Wong https://twitter.com/thomasgwong/status/1067202788487245824?lang=en
\lstdefinelanguage{OpenQASM}{
  morekeywords={qreg,creg,include,gate,opqaue,U,CX,measure,reset,if,barrier,u3,u2,u1,cx,id,x,y,z,h,s,sdg,t,tdg,rx,ry,rz,cz,cy,ch,ccx,crz,cu1,cu3},
  sensitive=true,
  morecomment=[l]{//},
  morestring=[b]"
}

gpolitis

How to access Redshift?

Amazon Redshift is a data warehouse product based on PostgreSQL. You can access the rtcstats databases HERE. We have a prod and a pilot database, use accordingly. Use username "admin" and "temporary credentials" to authenticate.

How to query/find all the sessions/endpoints in a call?

In this context a session equals an endpoint. The column name is statssessionid. If you know the meeting unique id and you want to find all the endpoints/sessions in that call this SQL query will do:

SELECT statssessionid FROM "rtcstats"."public"."rtcstats"

gpolitis

#!/usr/bin/env zsh

# Initialize VPN
sudo vpnns up
sudo vpnns start_vpn

# Popcorn time!
sudo ip netns exec frootvpn sudo -u $USER popcorntime

# Cleanup

gpolitis

#!/usr/bin/env python3

import numpy as np

# A: the array with the possible last-n values
# B: the array with the calls (where each element X represents a X-peeps call)
# returns a matrix where each row "i" is a vector of how many LD streams a
# participant in  call "j" would receive.
def product(A, B):
    res = np.empty([len(A), len(B)])

gpolitis

#!/bin/sh -x

errexit() {
  echo "$1"
  exit 1
}

usage() {
  echo "Usage: $0 wrap -c file command"
  echo "       $0 reset -c file command"

gpolitis

#!/bin/sh
# Copyright (c) 2020 Georgios Politis
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.

XHYVE_HOME=${XHYVE_HOME:-"$HOME/Virtual Machines"}

oups () {
  echo "$1" 1>&2
  exit 1

gpolitis

import csv
import sys

START = 0
STOP = 1
STEP = 1

# adjust the constants and then use like this:
# cat CSV_FILE | python csvio.py | less -S

gpolitis

1. quit Chrome (Cmd+Q)
2. start it like this from the cmd line script ~/Desktop/debug.log /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --enable-logging=stderr --vmodule=*/webrtc/*=3
3. screen-share something, for example your most embarassing tab

P.S. if you use zsh you need to put quotes around the chrome parameters

gpolitis

#!/bin/sh

# based on https://gist.github.com/Shourai/1088f78b5e3696190a8ce6a6045c477b

if [ $# -lt 2 ]; then
    echo "Usage: $0 interface up|down" 1>&2
    exit 1;
fi

DEV=$1

gpolitis

<code_scheme name="Jitsi">
  <option name="USE_SINGLE_CLASS_IMPORTS" value="false" />
  <option name="RIGHT_MARGIN" value="80" />
  <option name="JD_ALIGN_PARAM_COMMENTS" value="false" />
  <XML>
    <option name="XML_LEGACY_SETTINGS_IMPORTED" value="true" />
  </XML>
  <codeStyleSettings language="JAVA">
    <option name="BRACE_STYLE" value="2" />
    <option name="CLASS_BRACE_STYLE" value="2" />