TAILIEUCHUNG - Lecture Operating system concepts - Lecture 19

In this chapter, we look at the history and development of Linux, and cover the user and programmer interfaces that Linux presents interfaces that owe a great deal to the UNIX tradition. We also discuss the internal methods by which Linux implements these interfaces. However, since Linux has been designed to run as many standard UNIX applications as possible, it has much in common with existing UNIX implementations. We do not duplicate the basic description of UNIX given in the previous chapter. | CSC 322 Operating Systems Concepts Lecture - 21: by Ahmed Mumtaz Mustehsan Special Thanks To: Tanenbaum, Modern Operating Systems 3 e, (c) 2008 Prentice-Hall, Inc. (Chapter-4) Silberschatz, Galvin and Gagne 2002, Operating System Concepts, Ahmed Mumtaz Mustehsan, CIIT, Islamabad 1 Chapter 4 File System File system Implementation (Contd) File System Management Lecture-21 Ahmed Mumtaz Mustehsan, CIIT, Islamabad 2 Implementing Directories How do we deal with variable length names? Problem is that names have become very long Two approaches Fixed header followed by variable length names Heap-pointer points to names Lecture-20 Ahmed Mumtaz Mustehsan, CIIT, Islamabad 3 Two ways of handling long file names in a directory. In-line. In a heap. Implementing Directories Lecture-20 Ahmed Mumtaz Mustehsan, CIIT, Islamabad 4 File system containing a shared file. File systems is a Directed Acyclic Graph/tree (DAG) Shared Files Lecture-20 Ahmed Mumtaz Mustehsan, CIIT, Islamabad 5 Shared files If B or

• Hệ điều hành
• Operating system
• Operating system concept
• Memory management
• File systems
• Operating systems design
• Operating system structure
• Operating system concepts
• Lecture Operating system concepts
• Operating system services
• Operating system structures
• Operating system design
• Hệ điều hành
• Computer system organization
• Operating System Debugging
• Operating System Generation
• Types of System Calls
• Lecture Operating system principles
• Computer system
• Modern operating systems
• Evolution of operating systems
• Computer system structures
• File system interface
• File system implementation
• Computer system architecture
• The Linux system