Mat Utter matutter

Cybersecurity and other stuffs engineer.

matutter / gist:9956647

Created April 3, 2014 15:32

nested for loops and running average

matutter / file_event_iNotify.h

Created March 12, 2014 20:28

Detecting file modifications the efficient way using the inotify library

	#include <sys/inotify.h> //filesystem events
	class tinyListener {
	public:
	string name, list_name;
	void addListener(string s) {
	list_name = s;
	}
	bool good() {
	return (list_name == name);
	}

matutter / thread_race.cpp

Created March 12, 2014 02:55

An example demonstrating c++ threads and how mutex's work to ensure critical operation order.

	// the compile args -- gcc version 4.6.3 //
	// g++ this.cpp -Wall -fexceptions -std=c++0x -g -lpthread //
	//////////////////////////////////////////////////////////////
	#include <iostream>
	#include <thread>
	#include <mutex>

	using namespace std;

	mutex mx;

matutter / file_change_event.h

Created February 28, 2014 05:25

The basics of detecting a file change event without excess libraries. Very inefficient.

matutter / basic_parent_child_wait.c

Last active August 29, 2015 13:56

using wait() to prevent children from zombiefying

	/* Using 'wait();' and an '__EXIT_STATUS' makes sure we don't have zombies or a race condition */
	#include <stdio.h>
	#include <sys/types.h>
	#include <sys/wait.h>
	#include <signal.h>
	void child(int*);
	int parent(int);
	int main(void)
	{
	pid_t pid=1;

matutter / basic_parent_child_fork.c

Last active August 29, 2015 13:56

a basic example of parent/child that creates zombies and a race condition