Why dont dlang check NullPointer?

zhmt via Digitalmars-d digitalmars-d at puremagic.com
Thu Mar 26 22:34:59 PDT 2015


On Friday, 27 March 2015 at 04:13:01 UTC, deadalnix wrote:
> On Friday, 27 March 2015 at 03:59:30 UTC, zhmt wrote:
>>>
>>> The best way to do that is to separate the server modules 
>>> into independent processes. Then if one crashes, the others 
>>> keep running without fear of corruption.
>>>
>>> So instead of server modules, try doing mini servers that 
>>> communicate with the main server. This is how a lot of newer 
>>> programs are written because of the reliability and security 
>>> benefits it offers.
>>
>> But this will make the developement more difficult for me, or 
>> not acceptable.
>>
>> Is there any other ways?
>
> http://www.deadalnix.me/2012/03/24/get-an-exception-from-a-segfault-on-linux-x86-and-x86_64-using-some-black-magic/
>
> There is a hook in the runtime to enable this if you want.
>
> BUT, null pointer exception or not, Adam is right. Have your 
> stuff run in multiple process that you can restart. This is 
> more reliable, this is more secure, this is easier to update 
> without downtime, and so on... This is far superior solution 
> for server stuff.

multi-process means crashes are isolated by process, but isolated 
by thread may be more handy.

For example , this feature is suported by java c# lua, ie.

This can make dlang app developed by most developers more 
reliable.


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