PPT-Socket Programming Client/Server

Network Socket A network socket is an endpoint of an interprocess communication across a computer network Today most communication between computers is based on the Internet Protocol. Basics. Socket is an interface between application and network. Application creates a socket. Socket type dictates the style of communication. Once socket is configured, applications. Pass data to the socket for network transmission. Ross Shaull. cs146a. 2011-09-21. What we imagine. Network. request…. response…. 1. 2. 3. The packets that comprise your request are orderly and all arrive. In reality…. Network. 1. 2. 3. 3. Maybe a packet gets deleted and needs to be resent. University . of Calgary – CPSC 441. Parts . of these slides are courtesy . of Erich Nahum (IBM . Research). Introduction to HTTP. HTTP: . HyperText. Transfer Protocol. Communication protocol between clients and servers. With . TCP and UDP. Christoffer. . Brodd-Reijer. Zaruhi. . Aslanyan. Socket. High level connection between two hosts. Identified by port+IP. Transport layer (UDP, TCP, etc) or raw IP. Socket. Similar to operating on a file:. CPSC 441 TUTORIAL. TA: Fang Wang. What is a socket?. Socket is an interface between application and network (the lower levels of the protocol stack). The application creates a socket. The socket . type. University . of Calgary – CPSC 441. What is a Socket?. A socket . is an interface between . the application . and . the network . (the lower levels of the protocol stack). The application creates a socket. Yuvraj. . Sahni. March 8, 2017. 2. Requirement. Experience in Python Programming. Python for Programmers. https://wiki.python.org/moin/BeginnersGuide/Programmers. Learn Python Online. https://. www.codecademy.com/learn/python. Hakim . Weatherspoon. Assistant Professor, . Dept. of Computer Science. CS 5413: High Performance Systems and Networking. September 3, 2014. Slides used and adapted . judiciously from Computer Networking, A Top-Down Approach. Igor Ganichev. Originally prepared by DK Moon. Socket API?. Q. What would you expect when learning a new Unix command (. e.g., . ls. ) ? . Source code. Program options. Application Programming Interface (API). Yuvraj. . Sahni. March 8, 2017. 2. Requirement. Experience in Python Programming. Python for Programmers. https://wiki.python.org/moin/BeginnersGuide/Programmers. Learn Python Online. https://. www.codecademy.com/learn/python. External Communication. File I/O. Persistence of File Storage. RAM comes and goes. Programs crash. Systems reboot. Files last . (well … . comparatively speaking…). Programs save data to files to. Socket API. API (Application Programming Interface). Provides a standard set of functions that can be called by applications. Berkeley UNIX Sockets API. Abstraction for applications to send & receive data. 21. st. Lecture, Nov. . 7, 2013. Instructors:. . Randy Bryant, Dave . O’Hallaron, . and . Greg . Kesden. A Programmer’s View of the Internet. Hosts are mapped to a set of 32-bit . IP addresses. Client-server programming model. Sockets interface. Writing clients and servers. CS 105. “Tour of the Black Holes of Computing”. Computer Networks. A network is a hierarchical system of boxes and “wires” organized by geographical proximity.