Hello Ann, Several scenario's are possible. Depending on what you exacly have to do it is maybe interesting to make a separate class that manages the connections. But the principle is always the same.
- you mention you need timeout, So you derive a component from THttpCli and give it a timer. - you create 50 of those components, give all of them the same event handlers, and assign the first 50 the URL from the list. - when timer expires you call abort and in OnRequestDone you add URL back to the bottom of the list. - in OnRequestDone you post a message to a custom message handler with sender in the WParam, and in custom message handler you start new connection with the component in the parameter. I'm not sure if the message posting is nececary. Possible you can handle next GET request in OnRequestDone itself. Someone know ? --- Rgds, Wilfried http://www.mestdagh.biz Sunday, April 17, 2005, 14:19, Ann wrote: > :-( I cant handle it ;-(((( I dont really understand the HTTPAsy example > ;-( Could anybody help me? For example i got a an edit, where im deciding > how may "threads" (simaltaneous async http components) are going to be > used... for example ... 50..., got some memo... every line of memo is some > http address... and other memo as output... now i woulike it to check every > server at memo (like it had 50 threads) and put the output to output memo... > but if the connection times out, it add the server again to check to the end > of the list ... > Could anybody help me please... Im really new in delphi and i really need > it... > Desperaited Ann... > ----- Original Message ----- > From: "Francois Piette" <[EMAIL PROTECTED]> > To: "ICS support mailing" <twsocket@elists.org> > Sent: Thursday, April 14, 2005 9:58 AM > Subject: Re: [twsocket] Multithreaded http... >> > because there are alot of records to check, i wanted it to be > threaded... >> >> Well, this is defenitely not a case where multithreading is needed because > ICS HTTP component is >> asynchronous. HTTP component doesn't block ! It automatically handle your > requests in the background >> using events. If you need to handle 100 simultaneous requests, then simply > use 100 HTTP components >> and async methods (GetAsync and the likes) and events (OnRequestDone and > the likes). >> >> btw: Not all Windows versions are able to handle 100 simultaneous > connections ! This is not a >> limitation of ICS, it is a built-in limitation in some Windows versions. > You need a "Windows Server" >> edition to be able to handle hundreds of simultaneous connections. >> >> -- >> [EMAIL PROTECTED] >> http://www.overbyte.be >> >> >> ----- Original Message ----- >> From: "Flash Thunder" <[EMAIL PROTECTED]> >> To: "ICS support mailing" <twsocket@elists.org> >> Sent: Wednesday, April 13, 2005 11:09 PM >> Subject: Re: [twsocket] Multithreaded http... >> >> >> > >> > ----- Original Message ----- >> > From: "Francois PIETTE" <[EMAIL PROTECTED]> >> > To: "ICS support mailing" <twsocket@elists.org> >> > Sent: Wednesday, April 13, 2005 10:13 PM >> > Subject: Re: [twsocket] Multithreaded http... >> > >> > >> > > > I'm kinda new in Delphi but i really really need to write some >> > > > application... My application would have some TStringList where it > would >> > > > contain urls... then i wouldlike to process this list in some > threads... >> > > for >> > > > example 100 threads... the thread would get the content of url, run > some >> > > > procedure/s and give the results/s to some other TStringList... >> > > >> > > Well, you don't need multithreading with ICS. ICS is asynchronous and > non >> > > blocking. Except is very special situations, using multithreading will >> > > actually _reduce_ performance, even on a multiprocessor computer. If > you >> > > tell us what you really want to do, we can tell you if multithreading > is >> > > needed or not. >> > >> > I need to constantly gather data form a server about diffrent items ... > that >> > generally what i need... alot of items... the site isnt too user > friendly so >> > i got to copy/cut some things and put them into for example listview... > and >> > when it changes, the data in listview is being updated... for example: >> > >> > http://server.com/showiteminfo.php?itemid=12342352 >> > >> > this gives me some html with some table in whitch there is some > information >> > about product ... for example: >> > name: canon 3200f >> > resolution: 2048dpi >> > price: 333$ >> > >> > and i need to check alot of items continously so i would be the first > one >> > that knows that the price has changed or something... >> > because there are alot of records to check, i wanted it to be > threaded... >> > >> > thank your for your help... >> > Ann >> > >> > >> > >> > -- >> > To unsubscribe or change your settings for TWSocket mailing list >> > please goto http://www.elists.org/mailman/listinfo/twsocket >> > Visit our website at http://www.overbyte.be >> > >> >> >> -- >> To unsubscribe or change your settings for TWSocket mailing list >> please goto http://www.elists.org/mailman/listinfo/twsocket >> Visit our website at http://www.overbyte.be >> >> -- To unsubscribe or change your settings for TWSocket mailing list please goto http://www.elists.org/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
