'Socket options' diaporamas de présentation

TCP/IP Part II

TCP/IP Part II. Based on Notes by D. Hollinger Based on UNIX Network Programming, Stevens, Chapters 7,11,21,22,27 Also Java Network Programming and Distributed Computing, Chapter 6 Also Online Java Tutorial, Sun. Topics. Issues in Client/Server Programming Advanced TCP/IP Options

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Socket Options

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Lecture 19 Advanced Sockets Programming

Lecture 19 Advanced Sockets Programming. CPE 401 / 601 Computer Network Systems. slides are modified from Dave Hollinger. Advanced Sockets Programming. Socket Options Posix name/address conversion Out-of-Band Data Signal Driven I/O Deamons inetd

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Advanced Sockets Programming

Advanced Sockets Programming. Ref: Chapter 7,11,21,22. ? Socket Options ? Posix name/address conversion ? Out-of-Band Data ? Signal Driven I/O. It's important to know about some of these topics, although it might not be apparent how and when to use them.

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Lecture 11 Java Socket Programming

Lecture 11 Java Socket Programming. CPE 401 / 601 Computer Network Systems. slides are modified from Dave Hollinger and Joonbok Lee. Java Sockets Programming. The package java.net provides support for sockets programming (and more).

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The Application Layer

The Application Layer. Application Services (Telnet, FTP, e-mail, WWW). Reliable Stream Transport (TCP). Unreliable Transport Service (UDP). Connectionless Packet Delivery Service (IP). The Client-Server Model. Commonly used model for application interaction over a TCP/IP internet

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I/O Models

I/O Models. Satish Krishnan. I/O Models. Blocking I/O Non-blocking I/O I/O Multiplexing Signal driven I/O Asynchronous I/O. application. kernel. no datagram ready. recvfrom. wait for data. process blocks in a call to recvfrom. datagram ready. copy datagram.

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I/O Models

I/O Models. Satish Krishnan. I/O Models. Blocking I/O Non-blocking I/O I/O Multiplexing Signal driven I/O Asynchronous I/O. application. kernel. no datagram ready. recvfrom. wait for data. process blocks in a call to recvfrom. datagram ready. copy datagram.

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Non-blocking I/O

Non-blocking I/O. Computing Network Programming. Outline. Socket operations that cause blocking and how there operations behave for non-blocking sockets non-blocking read and write non-blocking connect daytime client web client non-blocking accept. Motivation.

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Socket Options

Socket Options. Ch.7: Socket Options. getsockopt and setsockopt functions Check options and obtain default values Generic socket options IPv4 socket options IPv6 socket options TCP socket options fcntl function Summary. getsockopt and setsockopt Functions. #include <sys/socket.h>

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Sockets

Sockets. Socket = abstraction of the port concept: Application programs request that the operating system create a socket when one is needed O.S. returns a small integer ( socket descriptor ) that the program uses to reference the socket

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Operating Systems

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More on Socket API

More on Socket API. How to Place Timeouts on Sockets (1). Using SIGALRM signal. Connection timeout ??? ??. Response timeout. lib/connect_timeo.c. advio/dgclitimeo3.c. alarm() ? ? ?? setitimer() ? micro sec ?? ?? ?? ( ??? msec ??? ?? ). How to Place Timeouts on Sockets (2).

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Multicasting

Multicasting. Jari Kellokoski 13.5.2005. Introduction. When a unicast address identifies a sigle IP interface Then a broadcast address identifies all IP interfaces This leaves multicast a set of IP interfaces

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QLT M10 Wuxi variants & Options

QLT M10 Wuxi variants & Options. Portable Energy Division March, 2014. QLT M10 Basic Specification. Wuxi Light Tower. Engine: Kubota D1105-E2BG Dedicated alternator for Light Tower 4 x Metal Halide Lamps (4 x 1000W) Manual Mast: >9 meters high

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Advanced UNIX programming

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Socket options: a summary

Socket options: a summary Tcp options, ip options and general socket options can be examined and sometimes modified. getsockopt, setsockopt routines Some examples: Socket (TCP/UDP) send/receive buffer size Socket (TCP/UDP) send/receive low/high watermark UDP broadcasting

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