> I am working on a download manager, and using the HTTPMultipartdownloader component. > For now I have 5 different HTTPMultipartdownloader components on my form, but I think > I should be able to do it with only 1. like HTTPMultipartdownloader[xx] ?
It depends on the requirements for your application. A few questions: 1) Do you want to download several files simultaneously or sequentially ? 2) To download one single file, do you want to download it normally or use the several simultaneous connection to download several parts of the same file at the same time ? Question 1 will tell you if you need one (sequential download) or many (parallel download) components. Question 2 will tell you is you need the THttpCli component (normal download) or the MultipartHTTP component (sevral parts of the same file simultaneously. Actually the multipart component is using several THttpCli component to download several parts of the same file at the same time using the HTTP "range" option. This is useful when you have a host server with a simple bandwidth limitation. Using the multipart component, you'll go much faster. If the host server has an intelligent bandwidth limiter, this won't change anything and if it has no bandwidth limiter, you'll actually slow down the download. Also don't forget that if you download 10 files simultaneously, each one with 10 simultaneous parts, you'll end up with ONE HUNDRED simultaneous connections. Thinks about the required power on your client computer and network infrastructure. By the way, when using appropriate hardware and OS, ICS is able to handle several THOUSANDS simultaneous connections. This won't work with all configurations because of OS or hardware limitation. -- francois.pie...@overbyte.be The author of the freeware multi-tier middleware MidWare The author of the freeware Internet Component Suite (ICS) http://www.overbyte.be -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
