gylns / multicast_example.py

Last active October 22, 2018 01:11 — forked from aaroncohen/multicast_example.py

	# Written by Aaron Cohen -- 1/14/2013
	# Brought to you by BitTorrent, Inc.
	# "We're not just two guys in a basement in Sweden." TM
	#
	# This work is licensed under a Creative Commons Attribution 3.0 Unported License.
	# See: http://creativecommons.org/licenses/by/3.0/

	import sys
	import re
	import socket

gylns / client.py

Created July 28, 2018 23:19 — forked from EyalAr/client.py

Demo code for my post about python's blocking stream reading functions.

	from subprocess import Popen, PIPE
	from time import sleep

	# run the shell as a subprocess:
	p = Popen(['python', 'shell.py'],
	stdin = PIPE, stdout = PIPE, stderr = PIPE, shell = False)
	# issue command:
	p.stdin.write('command\n')
	# let the shell output the result:
	sleep(0.1)

gylns / detect_mser.cpp

Created July 5, 2017 14:57

	#include "mser.hpp"
	#include <opencv2/imgcodecs.hpp>
	#include <opencv2/highgui.hpp>
	#include <vector>
	#include <iostream>

	using namespace std;
	using namespace cv;

	vector<Point> selectPoints(const String &video_name, const Mat &frame)

gylns / quanergy_net_install.sh

Created February 6, 2017 10:52

	#!/bin/bash
	sudo apt-get install isc-dhcp-server -y
	set interfaces
	set addresses
	set ip
	# Find network interfaces
	function find_interfaces()
	{
	local ip_result=$(ip link \| awk '{print $2}')
	ip_result=($ip_result)

gylns / mutex.cpp

Created August 19, 2016 01:17

	// from http://stackoverflow.com/questions/800383/what-is-the-difference-between-mutex-and-critical-section
	// a performance testing between mutex and CRITICAL_SECTION on windows
	HANDLE mutex = CreateMutex(NULL, FALSE, NULL);
	CRITICAL_SECTION critSec;
	InitializeCriticalSection(&critSec);

	LARGE_INTEGER freq;
	QueryPerformanceFrequency(&freq);
	LARGE_INTEGER start, end;

gylns / grub.md

Last active October 17, 2016 08:18

livecd

probe -u root
set timeout=10
set default=0

menuentry "Run Ubuntu Live ISO" {
 set isofile=/ISO/ubuntu-16.04-desktop-amd64.iso
 loopback loop ${isofile}

gylns / fastAtan2.cpp

Created July 13, 2016 14:43

	// from mathfuncs_core.cpp of opencv
	void fastAtan2(const float Y, const float X, float *angle, int len, bool angleInDegrees )
	{
	int i = 0;
	float scale = angleInDegrees ? 1 : (float)(CV_PI/180);

	for( ; i < len; i++ )
	{
	float x = X[i], y = Y[i];
	float ax = std::abs(x), ay = std::abs(y);

gylns / ac_WileyEbooks.json

Created July 13, 2016 04:30

	{
	"type": "resolver",
	"ns": "nonymous",
	"author": "gyl",
	"prefix": "batch downloader for wiley ebooks",
	"match": "^http://onlinelibrary\\.wiley\\.com/.*/pdf$",
	"static": true,
	"finder": "src=\"([^\"]\\.pdf[^\"])\"",
	"builder": "{1}"
	}

gylns / ac_InternationalPress.json

Created July 12, 2016 14:14

	{
	"type": "resolver",
	"ns": "nonymous",
	"author": "gyl",
	"prefix": "batch downloader for International Press",
	"match": "^http://intlpress\\.com/.*/body\\.html",
	"static": true,
	"finder": "href=\"(.+pdf)\"",
	"builder": "{1}"
	}

gylns / sorting_points.cpp

Created June 24, 2016 11:15

	//sorting points by clockwise using cross product
	//see <http://stackoverflow.com/questions/6989100/sort-points-in-clockwise-order>
	bool less(point a, point b)
	{
	if (a.x - center.x >= 0 && b.x - center.x < 0)
	return true;
	if (a.x - center.x < 0 && b.x - center.x >= 0)
	return false;
	if (a.x - center.x == 0 && b.x - center.x == 0) {
	if (a.y - center.y >= 0 \|\| b.y - center.y >= 0)