Course Details/Schedule

Day 1

• UNIX Standards
• Brief History of UNIX
• ATT and Berkeley UNIX Systems
• Major Vendors
• What is a Standard?
• What is POSIX?
• Other Industry Specs and Standards
• Library vs. System-Level Functions
• Files and Directories
• Basic File Types
• File Descriptors
• The open() and creat() Functions
• Keeping Track of Open Files
• File Table Entries
• The v-node Structure
• The fcntl Function
• The fcntl() Function - with F_DUPFD Command
• File Attributes
• The access() Function
• link(), unlink(), remove(), and rename() Functions
• Functions to Create, Remove, and Read Directories
• System I/O
• Standard I/O vs System I/O
• System I/O Calls
• File and Record Locking

Day 2

• Processes
• What is a Process?
• Process Creation and Termination
• Process Memory Layout
• Dynamic Memory Allocation
• Accessing Environment Variables
• Real and Effective User IDs
• Process Management
• The Difference Between Programs and Processes
• The fork() System Function
• Parent and Child
• The exec System Function
• Current Image and New Image
• The wait() and waitpid() Function
• Interpreter files and exec
• Interprocess Communication: Pipes
• Interprocess Communication
• Pipes
• FIFOs
• Signals
• Types of Signals
• Signal Action
• Blocking Signals from Delivery
• The sigaction() Function
• Signal Sets and Operations

Day 3

• Sending a Signal to Another Process
• Blocking Signals with sigprocmask()
• Scheduling and Waiting for Signals
• Restarting System Calls (SVR4)
• Signals and Reentrancy
• Pthreads
• Processes and Threads
• Creating Threads
• Multitasking
• Overview of Thread Architectures
• Processes Versus Threads
• The Pthreads API
• Thread Termination
• Joining Threads
• Detaching Threads
• Passing Arguments to Threads
• Pthreads Synchronization
• The Sharing Problem
• Mutexes
• Creating and Initializing Mutexes
• Using Mutexes
• Additional Synchronization Requirement
• Using Condition Variables
• Client/Server Programming
• Designing Applications for a Distributed Environment

Day 4

• Clients and Servers
• Ports and Services
• Connectionless vs. Connection-Oriented Servers
• Stateless vs. Stateful Servers
• Concurrency Issues
• The Berkeley Sockets API
• Berkeley Sockets
• Data Structures of the Sockets API
• Socket System Calls
• Socket Utility Functions
• TCP Client Design
• Algorithms Instead of Details
• Client Architecture
• Generic Client/Server Model - TCP
• The TCP Client Algorithm
• TCP Server Design
• Concepts
• Iterative Servers
• Concurrent Servers
• Performance Consideration
• An Iterative Server Design
• A Concurrent Server Design
• System V Interprocess Communication
• System V IPC
• Elements Common to msg, shm, and sem Facilities

Day 5

• The Three System V IPC Facilities
• IPC via Message Queues
• IPC via Shared Memory
• Coordinating the Use of Shared Memory Segments
• Semaphore Sets - emget()
• Semaphore Sets - semctl()
• Semaphore Sets - the semop() calls
• Shared Memory Coordination Using Semaphores
• Commands for IPC Facility Handling - ipcs and ipcrm
• Date and Time Functions
• Time Representations
• Decoding Calendar Time
• Shorthand Functions - asctime(), ctime()
• Formatting Date and Time Strings
• Process Times
• The Difference Between clock() and times()
• Berkeley High Resolution Timers
• Standard I/O
• Standard I/O Calls to manipulate streams
• Standard I/O Calls which perform character I/O
• Standard I/O Calls which perform string I/O
• Standard I/O Calls Which Perform Formatted I/O
• Standard I/O Calls Which Perform Binary I/O