SO-TP1

A pair of programs which display the use of Inter Process Communication (IPC)

1. md5 - which distributes the load of calculating md5 hashes into multiple processes
2. view - which through shared memory allows for the viewing of md5's output

Table of Contents

• Requirements
• Build
• Usage
• Static-code-analysis

Requirements

This project requires the following to be built & run

• Docker
• Agodio-Image or ImNotGone-Image (based on agodio's image)

Agodio's image requires adittional steps to for example update pvs-studio (linked below)

Additional information on how to install docker & agodio's image here, to use ImNotGone's image just replace agodio/itba-so:1.0 with imnotgone/itba-so everywhere you see it

To start the container and execute code inside it, run the following command:

docker run -v "${PWD}:/root" --privileged --rm -ti $SO_IMAGE

This will let you run commands on your image of choice nedded for this project to be built & run.

Where the /root folder will attach to your current directory & $SO_IMAGE is your image of choice (agodio/itba-so:1.0 or imnotgone/itba-so).

(make sure to be in /root when trying to build using make)

Build

To create both ./md5 and ./view the following command should be executed inside the containers

make all

Usage

./md5 file1 file2 file3 ... | ./view

or

Terminal 1 (md5 will print info for the view process to connect)

./md5 file1 file2 file3 ...

Terminal 2 (this info should be passed as arguments, or stdin inputs)

• ./view <INFO1> <INFO2> ...
  

• ./view
  <INFO1><ENTER>
  <INFO2><ENTER>
  ...
  

(with less than 2 seconds of time between executions in term1 & term2)

To test the two terminal execution you may start up a container using the command show above, and then run this command to enter the same container in another terminal session:

docker exec -it $(docker ps -q) bash

The terminal session will be opened on your most recent running docker container

Static-code-analysis

To run the static code analysis tools use the following commands

pvs-studio (requires and update when using agodio's image, steps here)

make pvs

cpp-check

make cpp-check