Operating Systems Concepts' Projects

Operating Systems Programming Projects for my Bachelor course, based on projects from the "Operating Systems Concepts" 9th edition book. Language used: Albanian. Finished and handed in 2022.

Description of each Problem:

In the folder linked-lists is the project of Chapter 2 (Operating Systems Structures) that reads as follows:

• In the module entry point, create a linked list containing five struct birthday elements. Traverse the linked list and output its contents to the kernel log buffer. Invoke the dmesg command to ensure the list is properly constructed once the kernel module has been loaded.
• In the module exit point, delete the elements from the linked list and return the free memory back to the kernel. Again, invoke the dmesg command to check that the list has been removed once the kernel module has been unloaded.

In the folder producer-consumer is the project of Chapter 5 (Process Synchronisation) that reads as follows:

• You will design a programming solution to the bounded-buffer problem using the producer and consumer processes.
• The solution presented uses 3 semaphores: empty and full, which count the number of empty and full slots in the buffer, and mutex, which is a binary (or mutualexclusion) semaphore that protects the actual insertion or removal of items in the buffer.
• For this project, you will use standard counting semaphores for empty and full and a mutex lock, rather than a binary semaphore, to represent mutex.
• The producer and consumer — running as separate threads — will move items to and from a buffer that is synchronized with the empty, full, and mutex structures.

In the folder banker is the project of Chapter 7 (Deadlocks) that reads as follows:

• You will write a multithreaded program that implements the banker’s algorithm.
• Several customers request and release resources from the bank. The banker will grant a request only if it leaves the system in a safe state.
• A request that leaves the system in an unsafe state will be denied.

In the folder shell-history is the project of Chapter 3 (Processes) that reads as follows:

• This project consists of designing a C program to serve as a shell interface that accepts user commands and then executes each command in a separate process.
• This project is organized into two parts: (1) creating the child process and executing the command in the child, and (2) modifying the shell to allow a history feature.