Computer Science 322 Operating Systems Mount Holyoke College Spring 2008

Agenda

• Announcements
  • Lab 3 in progress
• Happy Leap Year Day
• Lecture asignment recap
• Exam Review
• Semaphores
  • abstract synchronization primitive
  • wait/signal semantics
  • using to solve the critical section problem
  • implementation idea
  • POSIX semaphores
  • pthreads mutexes
  • using as a general synchronization tool

Lecture Assignment

No new lecture assignment for Monday.