gandharvjain / operating_system_lab

Lab experiments in O.S. course

Operating System programs in C

Exp-01_Process_Tree

• process_tree.c: Create process tree, delete parent nodes and find parent of orphaned process.
• time_shm.c: Determines the amount of time necessary to run a command from the command line using shared memory objects.
• time_pipe.c: Determines the amount of time necessary to run a command from the command line using pipes.
• pid_manager.c: Implement pid manager using bitmap.

Exp-02_Custom_Shell

• myShell.c: Custom shell on linux.

Exp-03_Custom_System_Call

• userspace.c: Test custom system call added to Linux kernel.

Exp-04_Collatz_Conjecture

• collatz.c: Create child process which applies the collatz conjecture algorithm on a positive integer.
• collatz_thread.c: Create child thread which applies the collatz conjecture algorithm on a positive integer.

Exp-05_Fibonacci

• fibonacci.c: Create child thread which calculates first n terms of the fibonacci sequence.

Exp-06_Matrix_Multiplication

• matrix_mul.c: Multiply two matrices using multithreading (POSIX pthreads).

Exp-07_CPU_Scheduling

• sched.c: Simulate CPU scheduling algorithms (FCFS, SJF and SRTF)

Exp-08_Synchronization_Problems

• prdcr_cnsmr.c: Producer-Consumer synchronization problem
• din_phil.c: Dining-Philosophers problem

Exp-09_Bankers_Algorithm

• banker.c: Banker's Algorithm

Exp-10_Contiguous_Memory_Allocation

• cont_mem_alloc.c: Contiguous Memory Allocation for First, Best and Worst fit algorithms