[Freeswitch-users] FS Crash when Lua's doing an http hit

[Alex Lake]

That's interesting to know!
Doubt that it's a syntax error, as that would happen all the time.
However, there could be an issue on what happens if the CURL times out 
and throws an exception.
Alex
> Alex,
>
> Does there happen to be a syntax error in the lua callback? There was a
> crash fixed recently(last few months) that dealt with lua not being able
> to properly handle an error in a function callback.
>
> William King
> Senior Engineer
> Quentus Technologies, INC
> 1037 NE 65th St Suite 273
> Seattle, WA 98115
> Main:   (877) 211-9337
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> william.king at quentustech.com
>
> On 05/14/2014 09:17 AM, Alex Lake wrote:
>> Got a script that uses Lua to hit a webserver while in the middle of a
>> call to get instructions on what to do next.
>>
>> It usually works very well.
>>
>> However, it seems that sometimes (possibly a slow response?) this can
>> cause freeswitch to fall over.
>> Any suggestions on ways to deal with this?
>>
>> This is FreeSWITCH Version 1.2.15+git~20131210T171529Z~fa43a37a82~64bit
>> (git fa43a37 2013-12-10 17:15:29Z 64bit)
>>
>> Thinks: From that version, I'm wondering if an update to latest stable
>> release might be in order!
>>
>> But I'll post this anyway...
>>
>> I'm using luacurl with the following bit of Lua:
>>
>>       c = curl.new()
>>       text = {}
>>       c:setopt(curl.OPT_URL,cc_url)
>>       c:setopt(curl.OPT_USERAGENT, "luacurl-agent/1.0")
>>       c:setopt(curl.OPT_HTTPGET, true)
>>       c:setopt(curl.OPT_CONNECTTIMEOUT, 1)
>>       c:setopt(curl.OPT_TIMEOUT, 1)
>>       c:setopt(curl.OPT_ENCODING, "utf8")
>>       c:setopt(curl.OPT_WRITEFUNCTION, WriteMemoryCallback)
>>       c:perform()
>>       c:close()
>>       Rsp = table.concat(text,'')
>>
>>
>> with....
>>
>> function WriteMemoryCallback(userparam,s)
>>       if s then
>>               text[#text+1] = s
>>               return string.len(s)
>>       else
>>               return 0
>>       end
>> end
>>
>> So any suggestions on further diagnostics that I should post (is there a
>> stacktrace or anything similar available?)
>>
>> Or just observations on whether getting Lua to do such tricks is
>> inadvisable and there is a better way!
>>
>> _________________________________________________________________________
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>>
>> 
>> 
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>
> 
> 
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