[prssr-devel-ml] Re: Updating feeds

  • From: yololo@xxxxxxxxxxxxxxx
  • To: prssr-devel-ml@xxxxxxxxxxxxx
  • Date: Wed, 23 Nov 2005 07:17:33 +0100

Hi all,

Well, to me , it depends on when you want to release the 1.1.5 final version...
Very soon : Use the standard tool, and keep your work for a future 
implementation (but i've got some feeds, and i have to refresh 2 times to have 
the entire feeds)
Not in a hurry : Then, we got homework ! Another cycle of beta testing... We 
are here to help !

Best regards

----Message d'origine----
>Date: Wed, 23 Nov 2005 01:45:02 +0100
>De: David Andrs <pda@xxxxxxxxxxxxx>
>A: prssr-devel-ml@xxxxxxxxxxxxx
>Sujet: [prssr-devel-ml] Updating feeds
>Hi to all beta testers!
>Last two weeks I was dealing with updating feeds. There are two major problems:
>a) updating is slow
>b) updating is not reliabe
>For testing I have used Hal's OPML file (over 60 feeds) - very good
>for testing. The current implementation of download/update is done via
>WinInet API. It is very easy to use, but very slow.
>So I tried to replace this API with my own. I succeeded. The result is:
>- 4x times quicker update
>- pRSSreader is about 3KB larger
>But there are some problems. If I used Hal's test file, about 10 feeds
>was updated sucessfully, the rest was not. Not good. So I tried to
>figure out where is the problem.
>I tried similar implemetation with WinInet then with MFC wrapper of
>WinInet. The former one had similar result as my own implemetation,
>the latter one was a bit more successful. Every updates were run with
>cradled PDA and connection via ActiveSync on desktop PC.
>On monday I tried my own implementation on WiFi connection and it runs
>perfectly - fast and reliable. I have made test with Egress, if it is
>able to update Hal's OPML file and the result was pretty same as with
>pRSSreader. Thus, there must be some error in ActiveSync which
>disallows a lot of subsequent connections, because if I updated site
>by site manually (not via Update All), the reliability grows up
>(nearly 100%).
>Now, I have to make decision which implementation should I use and I
>would like to know your opinions. Here are pros (+) and cons (-):
>+ quite reliable with ActiveSync
>+ smaller pRSSreader's binary
>+ debugged
>- slow
>- hard to extent in future (SSL, digest authentication), but probably possible
>My implementation:
>+ fast
>+ easy to extent
>+ quite reliable with ActiveSync
>+ full control on what is happening
>- bigger pRSSreader's binary
>- not full implementation of HTTP - will need lot of tests to work
>properly (will need your help)
>pRSSreader development mailing list

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