gatopeich

pkg upgrade
# Install runtime deps
pkg install python libzmq libcrypt

# Add build deps
pkg install python-dev libzmq-dev libcrypt-dev clang  
pip3 install -U pip
pip3 install pyzmq --install-option="--zmq=/usr/lib"
pip3 install jupyter

gatopeich

# gatopeich's minimal Javascript interpreter prototype

# Coding this as a prototype for a specific-purpose lightweight Javascript
# engine in C/C++.

# DONE: Tokenizer (except quote parsing)
# DONE: Expression extraction
# DONE: Pretty printer
# next: Interpreter...

gatopeich

#!/usr/bin/env python

# Display status of several Jenkins jobs in system tray
# Tooltip shows the list of builds and status
# SVG-based art represents the jobs status (random circles whose color reflects build status, green for OK etc.)
# On click, point default browser to ON_CLICK_URL

JOBS_URL = 'http://jenkins/job/'
ON_CLICK_URL = 'http://jenkins/user/myself/my-views/view/My%20Dashboard/'
WGET_AUTH = '--auth-no-challenge --user=XXX --password=YYY'

gatopeich

$ ps -eo pid,policy,rtprio,pri,nice,cmd
  PID POL RTPRIO PRI  NI CMD
    1 TS       -  19   0 /usr/lib/systemd/systemd --switched-root --system --deserialize 23
    2 TS       -  19   0 [kthreadd]
    3 TS       -  19   0 [ksoftirqd/0]
    5 TS       -  39 -20 [kworker/0:0H]
    6 TS       -  19   0 [kworker/u16:0]
    7 FF      99 139   - [migration/0]
    8 TS       -  19   0 [rcu_bh]
    9 TS       -  19   0 [rcu_sched]

gatopeich

$ ~/genymotion/tools/adb devices -l
List of devices attached
192.168.57.101:5555    device product:vbox86p model:Google_Nexus_7___4_4_4___API_19___800x1280 device:vbox86p

$ ~/genymotion/tools/adb shell ls /data/app/com.mojang.minecraft*
/data/app/com.mojang.minecraftpe-1.apk

$ ~/genymotion/tools/adb pull /data/app/com.mojang.minecraftpe-1.apk
/data/app/com.mojang.minecraftpe-1.apk: 1 file pulled. 50.6 MB/s (79278178 bytes in 1.494s)

gatopeich

from dataclasses import dataclass, fields as datafields
from ujson import dumps, loads
# Note: ujson seamlessly serializes dataclasses, unlike stdlib's json

@dataclass
class Point:
    x: float
    y: float

# Shallow dataclass can be rebuilt from dict/json:

gatopeich

#!/bin/bash

# Generic Linux service script, systemd and LSB compatible but also working on older systems

# To install:
# 1. Place under /etc/init.d/ with the name of the service
# 2. sudo chmod +x /etc/init.d/my_service
# 3. sudo systemctl enable my_service || sudo chkconfig --add my_service
# 4. sudo service my_service start

gatopeich

# /etc/systemd/system/minecraft@.service by gatopeich

#########
# HowTo #
#########
#
# - Copy this file to /etc/systemd/system/minecraft@.service
#
# - adduser --system --shell /bin/bash --home /opt/mcpe --group minecraft
#

gatopeich

// Using TPACKET_V3 to measure interface capacity. Proof of concept by gatopeich
// Based on the folloging information sources:
// [1] Kernel documentation: https://www.kernel.org/doc/Documentation/networking/packet_mmap.txt
// [2] Kernel "selftest" tools: https://github.com/torvalds/linux/blob/master/tools/testing/selftests/net/psock_tpacket.c
// [3] Answer to "Sending data with PACKET_MMAP..." in https://stackoverflow.com/a/43427533/501336
// [4] packet.7 man page http://man7.org/linux/man-pages/man7/packet.7.html
// [5] Kernel sources https://github.com/torvalds/linux/blob/master/net/packet/af_packet.c

#include <linux/if_packet.h>
#include <linux/if_ether.h>

gatopeich

// In-place JSON parsing concept by gatopeich 2020
// Taking advantage of C++17 features like std::string_view
// No rights reserved, use at your own risk!

#include <cstdlib>
#include <iostream>
#include <stdexcept>
#include <string_view>

namespace inplacejson