Project Requirements - https://web.cecs.pdx.edu/~markem/ALSP/project-description.pdf

• Serialize/deserialize data
• Start one chat per session
• Messages structure (ids of sender/receiver)
• server validates the uniqness of eache client id
• multi-threading (Alex)
• arguments validation server/client (Kamakshi)

Message:

• id sender/receiver
• buffer
• timestamp (sent time)
• destroy message if fails to be sent
• write all the message to a file (client mainain a file with all received messages of each session)

Client Structure:

Connected Clients: client1 client2 client3

client1@client3: Test message1 recvd msg from client3: Test message2 client1@client2: Test message3

client2 logged out

new client4 joined chat ~

Client attributes:

• unique client id
• get users
• client waits for the server response and prints for every message sent, "sent"

Server attributes:

• one sending message queue
• one receiving message queue
• algorithm sending the packets with msg (FIFO)
• sleep all the threads
• all the active users

Packeges (Ovi):

• size 1K
• file transfer
• packet number
• client id (sender/receiver)
• packege will have the receiver id (string:name)

Memory Management:

• everytime a client sends a message client allocates new memory
• memory is freed after the message is received by the client
• server queue the message in a new allocated memory, it stores in the queue and after the message is received by the receiver client, the memory will be destroied (freed)

Arguments: Client

• username
• ip (ipv4)
• port (long int)

Server

• port (long int)

Later:

• IO: write to console, write to log files