it.rocks

This is a simple hello world web server application. The beginning of a huge information technology system, I bet.

This procedure is for Debian / Ubuntu systems.

You will need g++ 10 for this. Let's learn modern C++ (C++20) !

sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt-get update
sudo apt install gcc-10 g++-10 gdb git

Source :
https://askubuntu.com/questions/1192955/how-to-install-g-10-on-ubuntu-18-04

You may need to change your default gcc / g++ version :

cd /usr/bin
sudo rm gcc
sudo rm g++
sudo ln -s gcc-10 gcc
sudo ln -s g++-10 g++
gcc --version
g++ --version

Both version 10 ? It's alright !

git clone https://github.com/itrocks/cpp itrocks-cpp
cd itrocks-cpp
mkdir dist
mkdir uWebSockets
git submodule init
git submodule update
cd uWebSockets
git submodule init
git submodule update
make

No error ? Your libraries are ready.

cd itrocks-cpp
make

No error ? Your executable should be into dist/main.

cd itrocks-cpp
dist/main

The webserver will run and wait for calls. What it says on console :

Thread 140135146346240 listening on port 3000
Thread 140135137953536 listening on port 3000

You will have one thread per logical cpu you've got into your computer :

cat /proc/cpuinfo

Launch your favorite web browser and :
http://localhost:3000

• The page will display "Hello world!".
• The running web server console will display "Incoming connection !" (maybe twice if your browser wants a favicon)

There will probably be more to come :).