System-Monitor

Operating Systems | Sistemas Operativos

Grade: 19/20 ⭐

This project was developed during the second semester of the 2nd year of the Software Engineering degree @ University of Minho.

The project consisted of developing a system monitor, similar to the htop command, using the C programming language and specially only system calls.

The project architecture is based on a server-client model, where the server is responsible for collecting the information and the client for running a program and displaying the result.

Examples of commands that can be used by a client:

• execute -u "ls", which executes the command ls and displays the result;
• execute -p "ls -la | grep x | wc -l", which executes a pipeline of commands and displays the result;
• status, which displays all the current programs being executed by all the connected clients;
• stats-time <PID-x> <PID-y>, which displays the CPU time used by the programs with the PIDs x and y;
• stats-uniq <PID-x> <PID-y>, which displays the number of unique commands executed by the programs with the PIDs x and y;
• stats-command <PID-x> <PID-y> <command>, which displays the number of times the command was executed by the programs with the PIDs x and y;

Installing and running the project

Clone the repository

$ git clone git@github.com:ruilopesm/System-Monitor-SO.git

Compiling

$ cd System-Monitor-SO
$ make

Note: You can also use make client or make server to compile only the client or the server, respectively.

Running the server

$ ./bin/monitor

Spawning a client

$ ./bin/tracer execute -u "ls"

Developed by:

• Rui Lopes
• Daniel Pereira
• Pedro Sousa