Advanced Red Hat Linux Systems Programming

Training Provided by Wintrac Inc. This course introduces the participants to system level programming in the C language in an RHEL environment. The course focuses on RHEL system calls and library functions, how to use them, and their underlying mechanisms. The course deals with many facets of the RHEL operating system, including: introduction to RHEL kernel structure, I/ O, Signals, Signal handlers, Timers, Processes, Multi-Tasking, Inter-Process Communication (IPC) Pipes, Shared memory, Message Queues, Semaphores, Networking, Sockets, using TCP/ IP and UDP/ IP. Throughout the course the information presented is related to the participant through: the execution of common RHEL user/ administrator commands, and writing, compiling, and executing example C language programs which demonstrate the use of system routines and accessing system data structures on a live RHEL system. You can get a complete list of other linux classes at http://www.wintrac.com/courses/courseslinux1.asp

Advanced Red Hat Linux Systems Programming System Programming Environment of the RHEL Operating System

• Environment of a C language program
• System level programming requirements:
  • C compiler issues
  • Header files and libraries
  • Special data types used
  • Useful functions
  • Error handling (basic)
• Documentation
• Security Issues

File Systems

• Types of file I/ O
• File I/ O structures
• File I/ O access types
• Dealing with STDIN, STDOUT, STDERR
• Creating and using temporary files
• Directory file access and manipulation
• Permissions

Process Creation and Control

• Attributes (username, UID, PID, Groups)
• Creation methods
• Multi-tasking
• Shells
• Synchronization
• An introduction to threads

Synchronization and System Information

• Time issues:
  • how time is maintained
  • timers
• General synchronization
  • semaphores
  • mutexes
  • signals (generation and handling)
• System information:
  • uname
  • hostname
  • load averages

Interprocess Data Communication Facilities

• Overview of RHEL IPC Facilities
• Memory Mapped files
• Pipes and Named Pipes
• Messages Queues
• Creating and Using Shared Memory structures

Sharing Code Between Processes

• Building shared object (libraries)
• Static Linking
• Dynamic Linking

Networking

• Concepts and basic requirements
• Socket creation and usage
• TCP/ IP level connections
• UDP/ IP level connections