A4Cspex

@autor Eder Leandro Carbonero Baquero

CSP Communicationg sequential processes

This is a room that allow to implemented the library CSP, we can add user, delete they and write message in the room, all information in keeping in memory.

How to compile and start to use in console

Execute the next command then follow the steps in the Explanation used

iex -S mix

Explanation used

# Start Chat is mandatory execute this method before all
Chat.start()

# Define some user
user = "MyFirstUser"

# Add user to chat or register it
Chat.add_user(user)

# Writte some message on the Room Chat
# Send the user and message
Chat.write_message(user. "This is my first message")

# Delete user
Chat.user_delete(user)

# If you want to look the chat information you can execute, this return a struct of the room with the last information registered 
RoomManager.get_room()

Example use console output

iex(1)> Chat.start
Processing Channel.get/1 method waiting message
{:ok, #PID<0.199.0>, :single_channel}

iex(2)> user = "MyFirstUser"
"MyFirstUser"

iex(3)> Chat.add_user user
:ok

iex(4)> RoomManager.get_room
%Room{name: "Room01", participans: ["MyFirstUser"], message: []}

iex(5)> Chat.write_message user, "My first message"
INFO: The participan is connect and is append a message
:ok

iex(6)> RoomManager.get_room
%Room{
  name: "Room01",
  participans: ["MyFirstUser"],
  message: ["Name participan: MyFirstUser -:- TimeStamp: 1712370371495 -:- Message: My first message"]
}

iex(7)> Chat.add_user user
INFO: The participan is already connected: MyFirstUser
:ok

iex(8)> RoomManager.get_room
%Room{
  name: "Room01",
  participans: ["MyFirstUser"],
  message: ["Name participan: MyFirstUser -:- TimeStamp: 1712370371495 -:- Message: My first message"]
}

iex(9)> Chat.user_delete user
:ok

iex(10)> RoomManager.get_room
%Room{
  name: "Room01",
  participans: [],
  message: ["Name participan: MyFirstUser -:- TimeStamp: 1712370371495 -:- Message: My first message"]
}

iex(11)> Chat.write_message user, "The user is not connected"
ERROR: The participan <MyFirstUser> should be connected to the room before to post
:ok

Installation

** TODO is pending to public this project is not available yet**

If available in Hex, the package can be installed by adding a4_cspex to your list of dependencies in mix.exs:

def deps do
  [
    {:a4_cspex, "~> 0.1.0"}
  ]
end