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//This program is demo for using pthreads with libev.
//Try using Timeout values as large as 1.0 and as small as 0.000001
//and notice the difference in the output

//(c) 2009 debuguo
//(c) 2013 enthusiasticgeek for stack overflow
//Free to distribute and improve the code. Leave credits intact

#include <ev.h>
#include <stdio.h> // for puts

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package main

import (
	"encoding/json"
	"fmt"
	"log"

	"github.com/graphql-go/graphql"
)

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OUTDATED

Futures 0.3 and Async/Await

This document will try to give a short tutorial of how to use the new style futures (0.3), how to use Async/Await, and how to use the compatibility layer to interoperate with old futures (0.1) and tokio.

Terminology

When dealing with futures in this new world there are a lot of different parts and it can be difficult to keep things straight at times. As such here is a quick run down of the different parts and what they are.

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Effective Modern CMake

Getting Started

For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.

After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft

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/* Trick to allow multiple inheritance of objects
 * inheriting shared_from_this.
 * cf. http://stackoverflow.com/a/12793989/587407
 */

/* First a common base class
 * of course, one should always virtually inherit from it.
 */
class MultipleInheritableEnableSharedFromThis: public std::enable_shared_from_this<MultipleInheritableEnableSharedFromThis>
{

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CentOS 7 Kickstart File - HOWTO Build ISO

There is so much documentation online from RedHat and CentOS about this topic - it's sad that I am writing this. But the real state of documentation on this topic (CentOS 7 + KS + ISO = Bootable DVD) is almost non-existent.

I found this: http://smorgasbork.com/component/content/article/35-linux/151-building-a-custom-centos-7-kickstart-disc-part-1

Which I greatly appreciate and +1, but the documentation is half-baked and there are numerous errors.

Finally... FINALLY! After four days of banging my head, I got this to work. Hopefully someone else will be able to do this in a few hours, instead of blowing their weekend like me. :(

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#include <sstream>

std::ifstream t("file.txt");
std::stringstream buffer;
buffer << t.rdbuf();

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secure_t * ecies_encrypt(char *key, unsigned char *data, size_t length) {

void *body;
HMAC_CTX hmac;
int body_length;
secure_t *cryptex;
EVP_CIPHER_CTX cipher;
unsigned int mac_length;
EC_KEY *user, *ephemeral;
size_t envelope_length, block_length, key_length;

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

/* since pipes are unidirectional, we need two pipes.
   one for data to flow from parent's stdout to child's
   stdin and the other for child's stdout to flow to
   parent's stdin */

#define NUM_PIPES          2

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#include <unistd.h>

int main(){
  return static_cast<int>(sysconf(_SC_NPROCESSORS_ONLN));
}