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Date: Wed, 24 Oct 2012 11:55:53 -0700 (PDT)
From: Bradley Meck <bradley.m...@gmail.com>
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Subject: Re: [nodejs] Weak references. Does node-weak and other simliar
 libraries, add significant overhead?
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Take it to a different topic if it becomes unrelated also.

On Wednesday, October 24, 2012 1:15:49 PM UTC-5, Marco Rogers wrote:
>
> Can you elaborate on "domains just feel wrong". I'm interested in how the 
> domains api comes across. I've expressed my concerns with it in the past.
>
> :Marco
>
> On Wednesday, October 24, 2012 7:28:06 AM UTC-7, Fredrik O wrote:
>>
>> Thank you Rick, it was good to know.
>>
>> Just for curiosity, what do you people thought, to emulate RAII within 
>> JavaScript for those object which need some clean up? Am I doing it 
>> completely wrong? I mean, an exception can easily get thrown in JavaScript 
>> and try..catch cannot catch error within callbacks. And domains just feel 
>> wrong. For those who does not know what RAII is, it is an automatic way to 
>> invoke a destructor when the object get out of reach, by normal control 
>> flow or an exception get thrown. See wikipedia: 
>> http://en.wikipedia.org/wiki/Resource_Acquisition_Is_Initialization
>>
>> And Nathan (or if there is someone else which can do a serious guess), 
>> because you have not answered I assume it will be fine to use your library 
>> heavily. With heavily do I mean having around 10 000 concurrent weak 
>> objects alive. If you believe it would not be case, please let me know.
>>
>> Thanks in advance.
>>
>> Den tisdagen den 23:e oktober 2012 kl. 01:20:19 UTC+2 skrev Rick Waldron:
>>>
>>>
>>> On Monday, October 22, 2012 at 5:22 PM, Fredrik O wrote:
>>>
>>>
>>>
>>> PS. How would weak maps be used to call a custom function on garbage 
>>> collection?
>>>
>>>
>>> I think you've misunderstood, WeakMaps don't facilitate this
>>>
>>> Rick
>>>  
>>>
>>>  
>>>
>>>
>>> What are your thoughts?
>>>
>>> Thanks in advance!
>>>
>>>  -- 
>>> Job Board: http://jobs.nodejs.org/
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>>>  
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Take it to a different topic if it becomes unrelated also.<br><br>On Wednes=
day, October 24, 2012 1:15:49 PM UTC-5, Marco Rogers wrote:<blockquote clas=
s=3D"gmail_quote" style=3D"margin: 0;margin-left: 0.8ex;border-left: 1px #c=
cc solid;padding-left: 1ex;">Can you elaborate on "domains just feel wrong"=
. I'm interested in how the domains api comes across. I've expressed my con=
cerns with it in the past.<div><br></div><div>:Marco<br><br>On Wednesday, O=
ctober 24, 2012 7:28:06 AM UTC-7, Fredrik O wrote:<blockquote class=3D"gmai=
l_quote" style=3D"margin:0;margin-left:0.8ex;border-left:1px #ccc solid;pad=
ding-left:1ex">Thank you Rick, it was good to know.<br><br>Just for curiosi=
ty, what do you people thought, to emulate RAII within JavaScript for those=
 object which need some clean up? Am I doing it completely wrong? I mean, a=
n exception can easily get thrown in JavaScript and try..catch cannot catch=
 error within callbacks. And domains just feel wrong. For those who does no=
t know what RAII is, it is an automatic way to invoke a destructor when the=
 object get out of reach, by normal control flow or an exception get thrown=
. See wikipedia: <a href=3D"http://en.wikipedia.org/wiki/Resource_Acquisiti=
on_Is_Initialization" target=3D"_blank">http://en.wikipedia.org/wiki/<wbr>R=
esource_Acquisition_Is_<wbr>Initialization</a><br><br>And Nathan (or if the=
re is someone else which can do a serious guess), because you have not answ=
ered I assume it will be fine to use your library heavily. With heavily do =
I mean having around 10 000 concurrent weak objects alive. If you believe i=
t would not be case, please let me know.<br><br>Thanks in advance.<br><br>D=
en tisdagen den 23:e oktober 2012 kl. 01:20:19 UTC+2 skrev Rick Waldron:<bl=
ockquote class=3D"gmail_quote" style=3D"margin:0;margin-left:0.8ex;border-l=
eft:1px #ccc solid;padding-left:1ex">
    <div><br></div>
    =20
    <p style=3D"color:#a0a0a8">On Monday, October 22, 2012 at 5:22 PM, Fred=
rik O wrote:</p>
    <blockquote type=3D"cite" style=3D"border-left-style:solid;border-width=
:1px;margin-left:0px;padding-left:10px">
        <div><div><br><br>PS. How would weak maps be used to call a custom =
function on garbage collection?</div></div></blockquote><div><br></div><div=
>I think you've misunderstood, WeakMaps don't facilitate this</div><div><br=
></div><div>Rick</div><div>&nbsp;</div><blockquote type=3D"cite" style=3D"b=
order-left-style:solid;border-width:1px;margin-left:0px;padding-left:10px">=
<div><div><span style=3D"font-size:16.5px">&nbsp;</span></div></div></block=
quote><blockquote type=3D"cite" style=3D"border-left-style:solid;border-wid=
th:1px;margin-left:0px;padding-left:10px"><div><div><br>What are your thoug=
hts?<br><br>Thanks in advance!<br><br>

<p></p>

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</div></div>
        =20
        =20
        =20
        =20
    </blockquote>
    =20
    <div>
        <br>
    </div>
</blockquote></blockquote></div></blockquote>
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