Advanced Red Hat Linux Systems Programming - RH250
This course introduces the participants to system level programming in the C language in a RHEL 6 environment. The course focuses on RHEL 6 system calls and library functions, how to use them, and their underlying mechanisms. The course deals with many facets of the RHEL6 operating system, including: introduction to RHEL6 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 6 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 6 system.
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
- spinlocks and barriers
- signals (generation and handling)
- System information
- uname
- hostname
- load averages
Interprocess Data Communication Facilities
- Overview of RHEL 6 IPC Facilities
- Memory Mapped files
- Pipes and Named Pipes
- Messages Queues
- Creating and Using Shared Memory structures
- Advanced Red Hat Linux Systems Programming
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