July 2001
Intermediate to advanced
688 pages
16h 14m
English
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Network I/O
Writing to a remote object on the Internet is not very different from writing to a file on your local machine. You might want to do this if your program needs to store its data to a file on a machine on your network, or if you were creating a program which displayed information on a monitor connected to another computer on your network.
Network I/O is based on the use of streams created with sockets. Sockets are very useful for client/server applications, peer to peer (P2P), and when making remote procedure calls.
A socket is an object that represents an endpoint for communication between processes communicating across a network. Sockets can work with various protocols, including UDP and TCP/IP. In this section we will create a TCP/IP connection between a server and a client. TCP/IP is a connection-based protocol for network communication. Connection-based means that with TCP/IP, once a connection is made the two processes can talk with one another as if they were connected by a direct phone line.
Tip
Although TCP/IP is designed to talk across a network, you can simulate network communication by running the two processes on the same machine.
It is possible for more than one application on a given computer to be talking to various clients all at the same time (e.g., you might be running a web server and also an FTP server and also a program which provides calculation support). Therefore, each application must have a unique ID so that the client can indicate which application ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.