urgent iOS internet issue (url request timeout setting?)

[Terry Judd]

Thanks Charles - yep that sounds exactly the problem. I guess I should have searched the bug database - it might have saved me some unnecessary panic. Anyway, tsNetReuseConnection false seems to work just fine for now. When I have some more time I'll delve into the tsNet commands a bit more and switch to using some of the asynchronous functions.

Regards,

Terry...

Sent from my iPad

> On 1 Jun 2017, at 7:48 pm, Charles Warwick via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Hi Terry,
> 
> I think this is the same issue as has been reported here that I am looking into:
> 
> http://quality.livecode.com/show_bug.cgi?id=19656
> 
> At this point in time, issuing "tsNetLibUrlReuseConnection false" is the best solution, as this will stop tsNet from trying to re-use an existing open connection to a server.
> 
> If you are using tsNet functions directly, the equivalent option can be set by using tSettings["no_reuse"] to true and passing that to the function.  For example:
> 
> local tHeaders, tRecvHeaders, tResult, tBytes, tSettings
> put true into tSettings["no_reuse"]
> put tsNetGetSync("http://www.livecode.com", tHeaders, tRecvHeaders, tResult, tBytes, tSettings) into tData
> 
> Best Regards,
> 
> Charles
> 
> 
> 
>> On 1/06/2017 1:24 PM, Terry Judd via use-livecode wrote:
>> OK, I think I have a workaround although I’m not sure whether it is a good solution or not.
>> 
>> If I include the line...
>> 
>> tsNetLibUrlReuseConnection false
>> 
>> ...in my preopenstack handler then the delay/hang seems to disappear – i.e. I get an almost immediate response if the url isn’t available. I’m not at all sure what this achieves but it seems that a new connection that can’t connect doesn’t experience the same problem as an existing connection that was previously successful.
>> 
>> Anyway, panic averted for now but any insights into the best way to deal with this stuff would be appreciated.
>> 
>> Terry...
>> 
>> 
>> 
>> On 1/06/2017 11:44 am, "use-livecode on behalf of Terry Judd via use-livecode" <use-livecode-bounces at lists.runrev.com on behalf of use-livecode at lists.runrev.com> wrote:
>> 
>>     OK – I have a bit of a serious issue on iOS where if I lose wifi connectivity the first attempt to get data from a url causes problems.
>>          I’m attempting to upload a file to Dropbox (that stuff all works fine) and I do an initial test to see whether the device is online (by trying to access a url). If it is I proceed with the upload, if not I just save a local copy of the file. Anyway, the first time I do the test the request seems to take forever (minutes?) – which I don’t have (I need the request to be completed within a few seconds). The second time around is ok though.
>>          Any ideas on how I prevent this initial ‘hang’. Is it possible to set a shorter timeout or something?
>>          Terry...
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