The one issue I know of with HttpWebRequest is that ~everything related to it
_must_ be disposed of in an orderly fashion, as having multiple requests "in
flight" at once tends to make things break. See also the epic comment at:
https://bugzilla.novell.com/show_bug.cgi?id=648862#c9
For reference, not disposing of the HttpWebResponse instance causes things to
break weirdly even in a console mono app; this is in no way limited to Mono for
Android.
Now, you may be doing everything right; I have no idea. This is just an FYI. :-)
- Jon
On Sep 30, 2011, at 10:11 AM, Andrew Sinclair wrote:
> OK, thanks for the clarification.
>
> That freeze happens during a session of HttpWebRequests. The "stacktrace:"
> message shown sometimes indicates that the crash is within WebAsyncResult.AB
> but more usually it's within the processing (eg. decompression) of the
> response. So I wondered whether a stream-related glitch might be causing it,
> but clearly it's not.
>
> NB. Prior to 1.2.0 I did see general long pauses throughout the app, these
> have now gone. The issue recorded in this new bug (1.2.0 and 1.9.0) is not a
> pause - the app just stops and doesn't continue (and doesn't die either.)
> The only "smoking gun" is the mysterious "stacktrace:" message which is
> being generated for some reason (by Mono?) but which doesn't result in an
> application exception or termination.
>
> Andy
>
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Jonathan Pryor
> Sent: 30 September 2011 14:55
> To: Discussions related to Mono for Android
> Subject: Re: [mono-android] Trouble with Android.Graphics
>
> On Sep 30, 2011, at 4:58 AM, Andrew Sinclair wrote:
>> Given that this is a general stream-related issue, could it be causing the
>> random issues I've seen around HttpWebRequests?
>> (http://bugzilla.xamarin.com/show_bug.cgi?id=1031)
>
> It's not stream-related, it's wrapped-java-stream related. HttpWebRequest
> doesn't involve Java streams at all, just mono's normal Stream-atop-libc
> support, and thus should act normally.
>
> I'm not sure what bug 1031 has to do with HttpWebRequest, though; I don't
> see HttpWebRequest mentioned, and it's about long GC pauses...
>
> - Jon
>
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