MC9292 UNIX INTERNALS Syllabus for 5th Sem MCA - Fifth semester - Regulation 2009 - Anna University

MC9292 UNIX INTERNALS Syllabus for 5th Sem MCA - Fifth semester - Regulation 2009 - Anna University

MC9292                                      UNIX INTERNALS                                               LT P C
3 0 0 3

UNIT I             OVERVIEW                                                                                               8
General Overview of the System : History – System structure User perspective Operating system services Assumptions about hardware. Introduction to the Kernel : Architecture of the UNIX operating system Introduction to system concepts. The Buffer Cache: Buffer headers Structure of the buffer pool Scenarios for retrieval of a buffer
Reading and writing disk blocks Advantages and disadvantages of the buffer cache.

UNIT II            FILE SUBSYSTEM                                                                                   8
Internal representation of files: Inodes Structure of a regular file Directories Conversion of a path name to an Inode Super block Inode assignment to a new file Allocation of disk blocks.

UNIT III           SYSTEM CALLS FOR THE FILE SYSTEM                                           10
Open Read Write File and record locking Adjusting the position of file I/O Lseek Close File creation Creation of special files Changing directory, root, owner, mode stat and fstat  Pipes – Dup Mounting and unmounting file systems link unlink.

UNIT IV          PROCESSES                                                                                          10
Process states and transitions Layout of system memory The context of a process Saving the context of a process Manipulation of the process address space - Sleep. Process Control : Process creation Signals – Process termination Awaiting process termination – Invoking other programs user id of a process Changing the size of a process - Shell System boot and the INIT process– Process Scheduling.

UNIT V           MEMORY  MANAGEMENT  AND I/O                                                       9
Memory Management Policies : Swapping Demand paging. The I/O Subsystem : Driver Interface Disk Driver –   Terminal Drivers– Streams –   Inter process communication.

1.  Maurice J. Bach, The Design of the Unix Operating System”, First Edition, Pearson
Education, 1999.

1.  B. Goodheart, J. Cox, The Magic Garden Explained, Prentice Hall of India, 1986.
2.  S. J. Leffler, M. K. Mckusick, M. J. .Karels and J. S. Quarterman., The Design and
Implementation of the 4.3 BSD Unix Operating System”, Addison Wesley, 1998.

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