James Bensley jwbensley

jwbensley / ex-members.py

Created October 14, 2022 14:03

Depth first search of a tree with a per-branch "exclude" list

jwbensley / memcpy_aligned.c

Created June 26, 2020 08:58

memcpy() using cache and page aligned values

	#include <inttypes.h> // uint*_t
	#include <stdio.h> // perror(), printf()
	#include <stdlib.h> // memcpy, posix_memalign()
	#include <string.h> // malloc()
	#include <time.h> // clock_t, CLOCKS_PER_SEC
	#include <unistd.h> // getpagesize()

	static inline void memcpy_aligned(void to, const void from, size_t len) {
	if (len <= 64) {
	memcpy(to, from, 64);

jwbensley / af_packet_systap

Created November 5, 2019 11:31

	// Not all functions are referenced below are called, that is intentional to verify that they are not being called.


	// Provide timestamps:

	function print_ts() {
	ts = gettimeofday_us();
	printf("[%10d.%06d] ", ts/1000000, ts%1000000);
	}

jwbensley / netfilter_unload_modules.sh

Created April 13, 2017 07:16

	#!/bin/bash
	#
	# Kills all iptables rules and unloads all iptables/netfilter related
	# kernel modules.
	#
	# From: https://github.com/netoptimizer/network-testing/blob/master/bin/netfilter_unload_modules.sh
	# Author: Jesper Dangaard Brouer <[email protected]>

	# Trick so, program can be run as normal user, will just use "sudo"
	if [ "$EUID" -ne 0 ]; then

jwbensley / grpc_cfg.py

Last active November 15, 2016 09:46

Example gRPC client for IOS-XR which loads a json plain text file and sends it over gRPC, using certificate authentication.

	# Code from https://github.com/cisco-grpc-connection-libs/ios-xr-grpc-python/blob/master/examples/grpc_cfg.py

	from grpc.framework.interfaces.face.face import AbortionError
	import json
	from time import sleep
	import sys
	sys.path.insert(0, '../')
	from lib.cisco_grpc_client import CiscoGRPCClient