Made by Julio Bangadebia and Quentin Anière

The server concurrently manages a list of VMS, on which clients can perform operations. Operations are induced by sockets. Operations are processed by a concurrent FIFO, First In, First Out, the first operation received will be the first operation processed.

The server logs are displayed in the console. We can see that two clients were connected and that both performed different operations. We can also see that client 1 has disconnected. We can also see that I launched the server on port 5000.

make server

gcc -o server server.c 

make client

``bash gcc -o client client.c

## Usage

### Server

#### With makefile

```bash
make launch-server

./server

make launch-client

./client

To choose the port (client and server) :

make launch-< server | client > port=< port >

./< server | client > < port >

• A - Add a VMS
• L x - y - List VMS with an ID between x and y
• E x - Eliminate a VMS with an identifier x
• X x y - Execute the binary code included in the file y on the VMS x

• The server is started (via the above commands) on a port
• It waits for a connection from a client
• Once the client is connected, the server starts a thread to manage the client operations
• The server waits for a command from the client
• The server executes the client command
• The server sends the result of the operation to the client
• The server waits for a new command from the client
• If the client disconnects, it notifies it in the console, closes the communication socket and kills the thread

Operations are processed by a concurrent FIFO:

• Any operation is added to the FIFO
• The client reads the first operation of the FIFO
• The server executes it and returns the result to the client who added it to the FIFO only

• Client is started (via the above commands) by specifying the server port and the server IP address
• The client connects to the server via the specified port and IP address
• It displays two windows:
  • A window to enter the commands
  • A window to display the results
  • A thread is started to read the results from the server, and display them in the results window
• As soon as the user selects an operation, the client sends the command to the server