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Linux System Prog’g

Linux System Prog’g. Jim Fawcett CSE775 – Distributed Objects Spring 2012. References. Advanced Programming in the Unix Environment, Second Edition, Stevens and Rago, Addison-Wesley, 2005 http://www.advancedlinuxprogramming.com/alp-folder/alp-ch08-linux-system-calls.pdf. Topics.

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Linux System Prog’g

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  1. Linux System Prog’g Jim Fawcett CSE775 – Distributed Objects Spring 2012

  2. References • Advanced Programming in the Unix Environment, Second Edition, Stevens and Rago, Addison-Wesley, 2005 • http://www.advancedlinuxprogramming.com/alp-folder/alp-ch08-linux-system-calls.pdf

  3. Topics • Important header files • Errors • Linux API

  4. Important Linux Header Files dirent.h directory entries fcntl.h file control mqueue.h message queues pthread.h threads regex.h regular expressions termios.h terminal I/O unistd symbolic constants utime.h file times arpa/inet.h internet definitions netinet/in.h internet address family netinet/tcp.h TCP definitions strings.h string operations ulimit.h user limits

  5. Linux Sys Header Files sys/ipc.h IPC sys/msg.h message queues sys/mman.h memory management sys/sem.h semaphores sys/shm.h shared memory sys/socket.h sockets interface sys/stat.h file status sys/time.h time types sys/times.h process times sys/types.h primitive system types sys/wait.h process control

  6. Linux API Error Protocols • Integer returns: • Success returns 0 • Failure returns a small integer, often -1 • Pointer • Success returns pointer to content • Failure returns 0 (null) • Find symbolic error names with • man 3 errno, and scroll down a little

  7. Linux System Calls • System calls list • Annotated list of system calls • Quick Reference • Anatomy of a system call

  8. Fini

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