/Server-Client-Using-Socket

Server and Client for both sequential and parallel downloads. Using Socket Programming (TCP/IP)

Primary LanguageC++

CS-550 Programming Assignment 1

Ankur Saikia (A20445640)

Dependencies

  • gcc 9+
  • gnome-terminal (default for ubuntu)

How to run?

  • VARIABLES.h contains MAX_CLIENTS which is set to 1024 by default but can be set to limited amounts like 64 if we want limited clients
  • In the /Code folder run the below comand to clean up existing compiled files
    make clean
  • Now to compile the code run the below commmand
    make all
  • Provide execute permission to the test.sh script by running the below command
    chmod +x test.sh
  • Run the script using the below command
    ./test.sh
  • The script would ask for user inputs to the below questions
    • Generate large (500 mb) file?
    • How many clients?
    • Which port?
    • Automated? This will make the client not ask for files to download and will download all files.
  • The files would be downloaded to folder with name like ClientFolder_{clientNumber}
  • To delete the folders and their respective files after testing run the folderRemove.sh script with the number of folders as input.
    chmod +x folderDelete.sh
    ./folderDelete.sh 8     // Here 8 is the number of client folders to delete

For more customization

  • For better granularity, we can manually start and run the server and individual clients using MAKE
  • Run the below command to start the server using own port number
    make run-server PORT={ portNumber }
  • In another terminal start a client using the below command
    make run-client PORT={ portNumber } FOLDER_INDEX={ folderIndex } AUTO={ automated }
  • The options for run-client are as under
    • The PORT has to be same as that to the server
    • The FOLDER_INDEX value would set the directory to save the new files. e.g. FOLDER_INDEX=1 would save the files in /ClientFolder_1/ folder
    • The AUTO tag is for automated downloads of all files. Seting this to 0 would make the program ask for which files to download and whether to download them parallely or serially.
    • AUTO tag has three options [0: No, 1: Sequential, 2: Parallel]

Scaling from 8 clients to 64 clients

  • To run the scaling script we need to give execute peermission to two bash scripts
    chmod +x folderRemove.sh
    chmod +x stepTest.sh
  • After execute permissions we need to run the script
    ./stepTest.sh
  • This script asks for a single user input which is whether to download files in sequence or in parallel
  • Once this is done, it would automatically spin up the server and clients in bursts
  • The output times get stored inside /Times and the number of files with Md5 errors get stored inside /Errors
  • Additionally the server output gets stored in serverOutput.txt