OperatingSystems

Solutions to tasks from Operating Systems classes at AGH UST. Tasks refers to Unix OS.

cw01 - Memory management, libraries, time measurement

• Allocation of an array with pointers to memory blocks containing an array of pointers (make a library)
• A program that uses the library (made before)
• Tests and measurements (of different types of libraries)

cw02 - IO functions, File system

• Comparison of performance between system and library I/O functions
• Operations on directory structure

cw03 - Creation of processes. Process environment, process control

• Process Tree
• Parallel matrix multiplication
• Process resources

cw04 - Signals

• Signal handling
• Effect of the fork and exec instructions on signal handling settings
• Transferring signals between programs

cw05 - Named and unnamed pipes

• Pipelining command processing
• Producer and consumer problem with the use of pipes

cw06 - IPC - Message queues

• Simple chat
  • System V
  • POSIX

cw07 - IPC - Shared memory, semaphores

• Mail order shop using semaphores and shared memory
  • System V
  • POSIX

cw08 - Threads

• Image color histogram

cw09 - Threads - synchronization methods

• The problem of the sleeping barber

cw10 - Sockets

Tic-tac-toe in client/server architecture

• Client - server communication using the streaming protocol (TCP)
• Client - server communication using the datagram protocol (UDP)