Jean-philippe Martel Kampouse

Building a Nix Package (The C&C++ Version)

Nix can be used to build any kind of package. But here I'm just going to focus on the simple C&C++ case.

Firstly we have to know that the final built packages will located inside /nix/store. Which is globally readable directory of all build inputs and build outputs of the Nix system. The emphasis is on readable, not writable, that is /nix/store is meant to be modified by the user or programs except for the Nix system utilities. This centralises the management of packages, and keeps our packages and package configuration consistent.

So what exactly are we trying to build. Our goal is to build a directory that will be located in /nix/store/*-package-version/, where * is the hash of the package. Preferably a version is also available, but some C&C++ packages don't have versions, so in that case, there's only /nix/store/*-package/.

What will be inside this directory? It follows the GNU Coding Standards descri

Wordpress & Docker

This file will setup Wordpress, MySQL & PHPMyAdmin with a single command. Add the code below to a file called "docker-compose.yaml" and run the command

$ docker-compose up -d

# To Tear Down
$ docker-compose down --volumes

	/** Pipeline between three processes.

	http://stackoverflow.com/q/20056084/

	See @chill's answer: http://stackoverflow.com/a/8092270
	*/
	#include <assert.h>
	#include <errno.h>
	#include <stdio.h>
	#include <stdlib.h>

	#include <stdio.h>
	#include <stdlib.h>
	#include <unistd.h>
	#include <strings.h>

	int main(int argc, char *argv[]) {
	int pipefd[2];
	pid_t cpid1;
	pid_t cpid2;

	void poller(int socketIn, std::string srcIP, int port){
	struct pollfd fds[2];
	// Initialize the fds to 0
	memset(fds, 0, sizeof(fds));

	// Wait in ms before poll times out. -1 for infinite
	int timeout = 15000;

	fds[0].fd = socketIn;

	#ifndef HAVE_STRLCAT
	/*
	* '_cups_strlcat()' - Safely concatenate two strings.
	*/

	size_t /* O - Length of string */
	strlcat(char dst, / O - Destination string */
	const char src, / I - Source string */
	size_t size) /* I - Size of destination string buffer */
	{

	;; 1) first goto https://console.developers.google.com/start/api?id=gmail
	;; -- to turn on gmail api for your account
	;; 2) then create a oauth consent with app name
	;; 3) then add oauth clientid and download to ./clientsecret.json
	;; 4) boot run
	;; -- when running first time a browser will open to accept authorizaton

	(set-env! :dependencies '[[com.google.apis/google-api-services-gmail "v1-rev34-1.21.0"]
	[com.google.api-client/google-api-client "1.20.0"]
	[com.google.oauth-client/google-oauth-client-jetty "1.20.0"]])

	(ns example.api.google
	(:require [cemerick.url :as url]
	[cheshire.core :as json]
	[clj-jwt.core :as jwt]
	[clj-jwt.key :as key]
	[clj-time.core :as time]
	[clj-http.client :as http]
	[clojure.string :as str])
	(:import java.io.StringReader))

	#include<stdio.h>
	#include<pthread.h>
	#include<stdlib.h>
	#include<unistd.h>

	#define MAX_MEALS 50
	#define MAX_WAIT_TIME 3000000
	#define NUMBER_OF_PHILOSOPHERS 7
	#define WORK_TIME 3

	/*
	** pipex.c - multipipes support
	*/

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

	/*
	* loop over commands by sharing