Timer

bonzi · 01-17-2010, 08:37 PM

I'm implementing a TCP protocol. TCP implementation requires to send packets continuously and if the receiver doesnt respond after a particular interval of time it should resend the packet again. I need some method to implement a timer expiry function. How can I implement it?? Should i implement threads (If yes can you please give a sample)? or is there any better method?

Btw I'm implementing it in a Unix system

chrism01 · 01-17-2010, 10:55 PM

The relevant book is http://www.amazon.com/TCP-IP-Illustr.../dp/0201633469 (a classic) and you can get all the code examples from http://www.kohala.com/start/tcpipiv1.html (free)

bonzi · 01-20-2010, 11:55 AM

Thank you very much for the reply. That book was really helpful

bigearsbilly · 01-20-2010, 02:43 PM

you can use alarm(3)

or a better timer is
the posix real time timer_create(2) with which you can
implement a threaded callback for
with fine grained accuracy.