[phobos] Showstopper bug: Hello world fails on OSX!

[Jacob Carlborg]

On 10 nov 2010, at 21:44, Andrei Alexandrescu wrote:

> On 11/10/10 12:21 PM, Jacob Carlborg wrote:
>> 
>> On 10 nov 2010, at 18:55, Sean Kelly wrote:
>> 
>>> On Nov 10, 2010, at 4:23 AM, Michel Fortin wrote:
>>> 
>>>> Le 2010-11-10 à 4:55, Jacob Carlborg a écrit :
>>>> 
>>>>> I've been thinking about this and I'm trying to think of everything to get this right the first time so I have a couple of questions:
>>>>> 
>>>>> * I though it might be a good idea to add support for running module constructors for dynamically loaded libraries (i.e. libraries loaded with dlopen). Then I was think I need to add the new module infos to the array of existing ones and when/if the library is unloaded remove the module infos added by the library. Now for the question: is an array still a good data structure for this or should we use an associative array or something else?
>>>> 
>>>> The Objective-C runtime uses a linked list. I think the expectation is that you won't have thousands of libraries open and that you won't unload them often. But going with an AA doesn't look like a bad idea to me.
>>> 
>>> The compiler runtime (src/rt/memory.d) uses a linked list for static data segments... or it used to.  I think it now may simply call gc.addRange.  Either way, I think a linked list is a good approach.
>> 
>> Ok,  I guess a we'll use a linked list.
> 
> I suggest we go with a hash. It costs next to nothing and has no future scalability money. I bet money at least a few companies (Facebook included) would run into severe scalability issues if linear search is to be used.
> 
> Andrei
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I would prefer to use a hash as well but I don't know if the runtime is sufficiently initialized when this operation would be called. I guess Sean or Walter have to answer/decide this.

-- 
/Jacob Carlborg