Beej’s Guide to Network Programming Using Internet Sockets by Brian “Beej Jorgensen” Hall

By Brian “Beej Jorgensen” Hall

Show description

Read or Download Beej’s Guide to Network Programming Using Internet Sockets PDF

Best operating systems books

Windows PowerShell Pocket Reference (2nd Edition)

This moveable connection with home windows PowerShell three. zero summarizes the command shell and scripting language, and offers a concise connection with the numerous initiatives that make PowerShell so valuable. If you’re a hectic home windows administrator, and don’t have time to struggle through large books or seek on-line, this is often the perfect on-the-job instrument.

Premiere Pro 2 for Windows: Visual QuickPro Guide

 Need to take your Adobe foremost seasoned talents to the following point? study greatest professional 2  the quick, effective means! This visible QuickPro consultant makes use of illustrations and in-depth reasons. You’ll be a grasp in time! •    Takes a visible, task-based method of instructing superior seasoned, utilizing photographs to lead you thru the software program and exhibit you what to do.

Extra info for Beej’s Guide to Network Programming Using Internet Sockets

Example text

But it is possible, I insist, that you can, with the proper authority, send data to multiple hosts at the same time! With UDP (only UDP, not TCP) and standard IPv4, this is done through a mechanism called broadcasting. yet), broadcasting isn’t supported, and you have to resort to the often superior technique of multicasting. But enough of the starry-eyed future–we’re stuck in the 32-bit present. But wait! You can’t just run off and start broadcasting willy-nilly; You have to set the socket option SO_BROADCAST before you can send a broadcast packet out on the network.

You’re asking. The problem is that the messages can be of varying lengths. ” Beej’s Guide to Network Programming Using Internet Sockets 32 So you send() all this stuff to the clients as it comes in. Your outgoing data stream looks like this: t o m H i B e n j a m i n H e y g u y s w h a t i s u p ? And so on. How does the client know when one message starts and another stops? You could, if you wanted, make all messages the same length and just call the sendall() we implemented, above. But that wastes bandwidth!

If the time is exceeded and select() still hasn’t found any ready file descriptors, it’ll return so you can continue processing. The struct timeval has the follow fields: struct timeval { int tv_sec; int tv_usec; }; // seconds // microseconds Just set tv_sec to the number of seconds to wait, and set tv_usec to the number of microseconds to wait. Yes, that’s microseconds, not milliseconds. There are 1,000 microseconds in a millisecond, and 1,000 milliseconds in a second. Thus, there are 1,000,000 microseconds in a second.

Download PDF sample

Rated 4.51 of 5 – based on 33 votes