jroyalty’s gists

jroyalty / one_pass_wrs.py

Last active August 16, 2019 20:18

One-pass weighted random sample (without replacement). Based on *Weighted Random Sampling* (2005; Efraimidis, Spirakis) [https://utopia.duth.gr/~pefraimi/research/data/2007EncOfAlg.pdf]. Longer treatment here: https://krlmlr.github.io/wrswoR/articles/internal/wrswoR.html

jroyalty / CMakeLists.txt

Created May 5, 2017 04:23

Little CMake config for LMDB

	# vim: set ai ts=4 expandtab:
	# ::=========================================================================::

	cmake_minimum_required(VERSION 3.5 FATAL_ERROR)

	# The following must be set BEFORE doing project() or enable_language().
	if (NOT CMAKE_BUILD_TYPE)
	message(STATUS "No build type defined; defaulting to 'Debug'")
	set(CMAKE_BUILD_TYPE "Debug" CACHE STRING
	"The type of build. Possible values are: Debug, Release, RelWithDebInfo and MinSizeRel.")

jroyalty / nfqlistener.py

Created December 28, 2016 20:14

Twisted listener for NFQ

	import logging
	import socket

	from twisted.internet import abstract, address, interfaces, defer
	from zope.interface import implementer
	try:
	import netfilterqueue
	except:
	netfilterqueue = None

jroyalty / frugal.py

Created June 2, 2016 20:26

Python implemention of frugal streaming algorithms for estimating quantiles. See: http://arxiv.org/abs/1407.1121

	class frugal1_estimator(object):
	def __init__(self, qtile):
	self.qtile_target = qtile
	self.m = 0.0

	def add(self, new_data):
	r = random.random()
	if new_data > self.m and r > (1.0 - self.qtile_target):
	self.m += 1
	elif new_data < self.m and r > self.qtile_target:

jroyalty / CMakeLists.txt

Last active April 28, 2023 03:52

Work in progress CMake file for Redis simply for use in CLion

	# vim: set ai expandtab:

	cmake_minimum_required(VERSION 3.2 FATAL_ERROR)

	# The following must be set BEFORE doing project() or eanble_language().
	# ::-------------------------------------------------------------------------::
	if (NOT CMAKE_BUILD_TYPE)
	message(STATUS "No build type defined; defaulting to 'Debug'")
	set(CMAKE_BUILD_TYPE "Debug" CACHE STRING
	"The type of build. Possible values are: Debug, Release, RelWithDebInfo and MinSizeRel.")

jroyalty / test.c

Created January 19, 2016 20:36

Netmask for IPv4 source

	#include <stdio.h>
	#include <stdlib.h>
	#include <maxminddb.h>

	int main(int argc, const char * argv[]) {
	MMDB_s mmdb = (MMDB_s )malloc(sizeof(MMDB_s));
	MMDB_open("/tmp/GeoIP2-City_20160105/GeoIP2-City.mmdb",
	MMDB_MODE_MMAP, mmdb);

	int gai_error = 0;

jroyalty / gist:339ae6eb4651b55d8fa0

Last active August 29, 2015 14:20

JLRTestApp

UP

jroyalty / Rule.java

Created January 19, 2015 04:07

OpenTSDB KV match rule

	public class Rule {
	static enum MatchAction {
	OUTPUT, OUTPUT_WITH_TAGS, IGNORE;
	};

	static enum OutputFormat {
	KV, KV_DELIM, KV_JSON, LIST, LIST_DELIM, LIST_JSON, HASH;
	};

	private String metricMatch;

jroyalty / init.js

Last active August 29, 2015 14:07

A Javascript-based query library for time series data. This is particular to OpenTSDB-style data at the moment.

	/*
	* Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*

jroyalty / crack.sh

Created July 19, 2014 21:43

Open an OS X PKG file

	## If the package won't let you "Show Package Content" on right-click then...
	pkgutil --expand Foo.pkg some/path

	## This will probably yield one more more child .pkg files. Inside them
	## look for the Payload file. Then...
	mv Payload Payload.gz
	gunzip Payload.gz

	## Which results in Payload uncompressed. Use 'cpio' to extract files...
	cpio -iv < Payload

James Royalty jroyalty