rozgo

void BFD2(inout ParticleSimulationDataP1 Particle, float3 Accel)
{
	float3 x = Particle.Position;
	float3 v = Particle.Velocity;

	float3 x1 = Particle.PositionPrev;
	float3 v1 = Particle.VelocityPrev;

	Particle.Position = (4.0/3.0) * x - (1.0/3.0) * x1 + 1.0 * ((8.0/9.0) * v - (2.0/9.0) * v1 + (4.0/9.0) * Accel * TimeStep2);
	Particle.PositionPrev = x;

rozgo

// Suppose you have a variable named `future` which implements the `Future` trait.
let future: impl Future = ...;

// This gist demonstrates how to run the future until completion using the `stdweb` crate.


// The various imports.

extern crate futures;
extern crate stdweb;

rozgo

FWIW: I'm not the author of the content presented here (which is an outline from Edmond Lau's book). I've just copy-pasted it from somewhere over the Internet, but I cannot remember what exactly the original source is. I was also not able to find the author's name, so I cannot give him/her the proper credits.

---

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

rozgo

Most GStreamer examples found online are either for Linux or for gstreamer 0.10.

This particular release note seems to have covered important changes, such as:

• ffmpegcolorspace => videoconvert
• ffmpeg => libav

Applying -v will print out useful information. And most importantly the negotiation results.

rozgo

==========================================          ==========================================
             TMUX COMMAND                                        WINDOW (TAB)
==========================================          ==========================================

List    tmux ls                                     List         ^b w
New          -s <session>                           Create       ^b c
Attach       att -t <session>                       Rename       ^b , <name>
Rename       rename-session -t <old> <new>          Last         ^b l               (lower-L)
Kill         kill-session -t <session>              Close        ^b &

rozgo

// [snippet: Async socket server using F# async computations.]
open System
open System.IO
open System.Net
open System.Net.Sockets
open System.Threading

type Socket with
  member socket.AsyncAccept() = Async.FromBeginEnd(socket.BeginAccept, socket.EndAccept)

rozgo

// Creating new threads
open System
open System.Threading

//What will execute on each thread
let threadBody() = 
    for i in 1..5 do
        //Wait 1/10 of a second
        Thread.Sleep(100)
        printfn "[Thread %d] %d ..."

rozgo

#include <SDKDDKVer.h>
#include <Windows.h>

#pragma warning(disable:4819)
#pragma warning(disable:4996)

// for OpenCV2
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/objdetect/objdetect.hpp"
#include "opencv2/gpu/gpu.hpp"

rozgo

THE PROBLEM:

Standard practices say no non-root process gets to talk to the Internet on a port less than 1024.  How, then, could I get Node talking on port 80 on EC2?  (I wanted it to go as fast as possible and use the smallest possible share of my teeny tiny little micro-instance's resources, so proxying through nginx or Apache seemed suboptimal.)  


THE TEMPTINGLY EASY BUT TOTALLY WRONG SOLUTION:

Alter the port the script talks to from 8000 to 80:

}).listen(80);