[SR-Users] Thread safety of shared variables

[Ovidiu Sas]

s/You can process/You can't process

Typo :)

-ovidiu

On Wed, Nov 19, 2014 at 11:35 AM, Ovidiu Sas <osas at voipembedded.com> wrote:
> It shouldn't ... Based on how many workers and cores you have, the
> probability of having collisions should be pretty low.  You can
> process more then the minimum of workers/cores available on your
> server.
>
> Regards,
> Ovidiu Sas
>
> On Wed, Nov 19, 2014 at 11:21 AM, Alex Balashov
> <abalashov at evaristesys.com> wrote:
>> Thanks, it was actually increment I was interested in.
>>
>> Can one get around it with an intermediate variable?
>>
>> $var(y) = $shv(x);
>> $shv(x) = $var(y) + 1;
>>
>> I would just use a lock(), but I'm afraid that it will serialise message
>> processing too much at high volume, due to the blocking.
>>
>>
>> On 19 November 2014 01:23:14 GMT-05:00, Daniel-Constantin Mierla
>> <miconda at gmail.com> wrote:
>>>
>>> For what kind of operation?
>>>
>>> Reading or setting the value are safe, but updating it with its own
>>> value used in an expression is not.
>>>
>>> Safe:
>>>
>>> xlog("value is $sht(x)\n");
>>> $sht(x) = 1;
>>>
>>> Race:
>>>
>>> $sht(x) = $sht(x) + 1;
>>>
>>> Cheers,
>>> Daniel
>>>
>>> On 19/11/14 00:27, Alex Balashov wrote:
>>>>
>>>>  Does setting $shv()s in script require lock()ing, or is it inherently
>>>>  thread-safe?
>>>>
>>>>  Thanks!
>>>
>>>
>>
>> --
>> Sent from my Nexus 10, with all the figments of autocorrect that might
>> imply.
>>
>> Alex Balashov - Principal
>> Evariste Systems LLC
>> 235 E Ponce de Leon Ave
>> Suite 106
>> Decatur, GA 30030
>> United States
>> Tel: +1-678-954-0670
>> Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
>>
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>
>
>
> --
> VoIP Embedded, Inc.
> http://www.voipembedded.com



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