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include stdio.h include signal.h include fcntl.h
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Socket option Getsockopt ou setsockopt fcntl ioctl
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Interprocess Communication ... Using fcntl() system call. Locking file areas ... fl_end; } Struct file_lock *file_lock_table; Linux tracks down deadlocks and ...
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Socket options: a summary Tcp options, ip options and general socket options can be examined and sometimes modified. getsockopt, setsockopt fcntl
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The fcntl() subroutine performs controlling operations on the open file specified. ... platter. cylinder. read-write. head. arm. Disk Speed ...
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first developed by Ken Thompson (Bell Lab) on PDP-7 (16 bit machine) ... truncate. need more contol? fcntl(fd, cmd); dup fd. examine and set file parameters ...
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Nonblocking I/O. Nonblocking reads and writes. Buffers enabling overlapped nonblocking I/O ... Overlap processing with connection establishment. Check for ...
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Title: UNIX Files Author: Maria Hybinette Last modified by: David Lowenthal Created Date: 3/24/2003 5:16:08 PM Document presentation format: On-screen Show
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Unix Unix 1965 ARPA MIT ...
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Title: Network Programming Author: Dave Hollinger Last modified by: haribabu Created Date: 3/31/1996 9:02:14 PM Document presentation format: On-screen Show
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CSCE 515: Computer Network Programming - Select. Wenyuan Xu ... With nonblocking I/O, the process will chew up all available processor time! ...
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Title: Last modified by: Created Date: 9/7/1998 9:18:45 PM Document presentation format: (4:3) Company
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Input from standard input should be sent to a TCP socket. ... Use alarm and signal handler to interrupt slow system calls. Use multiple processes/threads. ...
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a generic TCP client (like telnet) ... With nonblocking I/O the process will chew up all available processor time!!! 8. Using alarms ...
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Sockets CS 3516 Computer Networks Length field makes it easier for OS to handle Outline Socket basics Socket details (TCP and UDP) Socket options Final notes ...
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Title: Chap 16. Abstract Data Types Author: R5me Last modified by: Bong-Soo Sohn Created Date: 11/7/2000 6:20:08 AM Document presentation format: ...
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Emergency Rescue workers, Military Personnel. Detection difficult pay attention to device performance. Mimicry Attack on Host Based IDS ...
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Title: Linux System Programming: Process Management Author: Jianjian Song Last modified by: song Created Date: 7/16/2003 1:27:40 PM Document presentation format
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When I/O on any one descriptor can result in blocking. Non ... SO_LINGER linger till all data is sent before returning from close() on a TCP connection. ...
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Chapter 13 Systems Programming Graham Glass and King Ables, UNIX for Programmers and Users, Third Edition, Pearson Prentice Hall, 2003. Original Notes by Raj Sunderraman
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Programming with UNIX File Systems (Chap 3, 4. in the book 'Advanced Programming ... opened for either write-only or read-write, truncate its length to 0. ...
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Title: IPC Subject: System Programming Author: MF Last modified by: moni Created Date: 9/18/2001 8:40:36 AM Document presentation format: On-screen Show
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KEY Lecture #12 GPIO Control Registers KEY KEY Driver key-driver.c ...
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Inter-process Communications in Linux: The Nooks & Crannies, by John Shapley ... If needed, additional text can be appended to the string returned by strerror. ...
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Title: FND Last modified by: Created Date: 3/24/2005 8:20:12 AM Document presentation format: (4:3)
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Operating System ... Reasons for Process Suspension ... operating system software within context of a user process ...
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ppencode for Perl lover TAKESAKO Yoshinori Welcome to Japan ! m(_ _)m Yet Another Perl Conference Where is this place?
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... out of band signaling. As we will see, used in AMPS, GSM, IS-54/136 ticket (purchase) baggage (check ... routing ticket (complain) baggage (claim ...
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port number and IP address. must be specified (unlike bind()) addrlen is length of structure ... Can change connect or unconnect by repeating connect() call ...
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CS4514-Help Session 2---- By Huahui Wu
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Operating Systems Lecture 11 UNIX Pipes Read Handout
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Title: FND Last modified by: Created Date: 3/24/2005 8:20:12 AM Document presentation format: (4:3)
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An end-point for a IP network connection. what the application layer 'plugs into' ... 'connect' a misnomer, here. Should be setpeername() Use send() instead of sendto ...
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Computer Networks. Sockets. Outline. Socket basics. Socket details. Socket Basics ... port number and IP address. port == 0, then host will pick ephemeral port ...
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2.4 Kommunikationsdienste des Betriebssystems Interproze kommunikation (inter-process communication, IPC) am Beispiel Unix Prozesse Kommunizierende
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TCP socket has a send buffer but UDP socket does not ... Amount of space that is available in the socket send buffer before select() returns 'writable' ...
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fork() //create a child process. exec() //executing a program ... sz = read(fd, c, 10); printf('We have opened in1, and called read(%d, c, 10).n', fd) ...
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Reutilizaci n de c digo hecho y probado. Acceso al Sistema Operativo ... math.h matem ticas sobre double. sin (x), cos (x), asin (x), acos (x), exp (x), log (x) ...
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Port num: Where application receives (number) ... ex: reno.wpi.edu,p21 bert.wpi.edu,p1500. ex: bill.microsoft.com,p21 linus.linux.org,p1499 ...
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Title: PowerPoint Presentation Author: Sarah Last modified by: Sarah Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show (4:3)
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Two processes connected by a pipe. One process writes to the pipe, the other reads from the pipe. ... Duplicates a file descriptor -- 'aliased' ...
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TP Syst me d Exploitation (Linux) Brahim ELBHIRI GSCM_LRIT, FSR Bienvenu Tous!!! Facult des Sciences de Rabat Partition /swap Fonctionner le syst me d une ...
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Title: PowerPoint Presentation Last modified by: Andy Wang Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show (4:3) Other titles
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Title: 1 Author: negi Last modified by: Created Date: 2/20/2004 9:28:34 AM Document presentation format: A4 (210x297 mm)
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Inter-Process Communication Mechanisms CSE331 Operating Systems Design Cooperating Processes Independent process cannot affect or be affected by the execution of ...
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Title: PowerPoint Presentation Last modified by: Patricio Mart nez Barco Created Date: 1/1/1601 12:00:00 AM Document presentation format: Presentaci n en pantalla
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Title: Advanced UNIX progamming Author: asriniva Last modified by: asriniva Created Date: 6/5/2002 8:34:37 PM Document presentation format: On-screen Show
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Interprocess communication
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Interprocess Communication. Resource Sharing. Kernel: Data structures, Buffers ... Doubly linked list file_lock_table is used. Struct file_lock ...
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Linux game programming. An introduction to the use of ... We achieved the illusion of 'smooth' and 'flicker-free' ... count; // decrement a counter } while ...
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Title: PowerPoint Presentation Last modified by: Kevin Closson Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show Other titles
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Inter-Process Communication : Message Passing Processes can communicate through shared areas of memory the Mutual Exclusion problem and Critical Sections
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Title: ppencode Last modified by: Created Date: 10/12/2003 9:42:26 AM Document presentation format: Company: ...
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Default action (see manual pages man signal) is the action executed if nothing else ... Processing the signal depends also on the state of the process and level ...
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Send email, which tells to change the password, to all users. Shell escape (1) ... sprintf(cmd,'/usr/bin/finger %s',argv[1]); system(cmd) ...
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