*>From:* mta`chrono <chrono@mta-international.net>
>*Sent:* Sunday, June 3, 2012 14:38:31
>*To:* digitalmars-d@puremagic.com
>*Subject:* Re: synchronized (this[.classinfo]) in druntime and phobos
>
>
>Am 30.05.2012 11:11, schrieb deadalnix:
>>
>> D already have much better tools that the one java provide (std.concurency, std.parallelism, TLS by default, transitive type qualifiers, . . .) that most these thing taken from java don't make any sense now.
>>
>> For instance, what is the point of being able to lock on any object when most of them are thread local ??
>
> Right! Locking on non-TLS objects doesn't make sense. Perhaps only shared objects should be synchronizeable and thus contain a monitor / pointer to a monitor.
auto thingy = new Thing();
auto sthingy = cast(shared)thingy;

As long as we support casting to/from shared, you can’t eliminate the monitor pointer in any object.


Sent from my *Windows 8 PC* <http://windows.microsoft.com/consumer-preview>

On 04-06-2012 00:00, Andrew Wiley wrote:
> *>From:* mta`chrono <chrono@mta-international.net
> <mailto:chrono@mta-international.net>>
>  >*Sent:* Sunday, June 3, 2012 14:38:31
>  >*To:* digitalmars-d@puremagic.com <mailto:digitalmars-d@puremagic.com>
>  >*Subject:* Re: synchronized (this[.classinfo]) in druntime and phobos
>  >
>  >
>  >Am 30.05.2012 11:11, schrieb deadalnix:
>  >>
>  >> D already have much better tools that the one java provide
>  >> (std.concurency, std.parallelism, TLS by default, transitive type
>  >> qualifiers, . . .) that most these thing taken from java don't make any
>  >> sense now.
>  >>
>  >> For instance, what is the point of being able to lock on any object when
>  >> most of them are thread local ??
>  >
>  > Right! Locking on non-TLS objects doesn't make sense. Perhaps only
>  > shared objects should be synchronizeable and thus contain a monitor /
>  > pointer to a monitor.
> auto thingy = new Thing();
> auto sthingy = cast(shared)thingy;
> As long as we support casting to/from shared, you can’t eliminate the
> monitor pointer in any object.
> Sent from my _Windows 8 PC_ <http://windows.microsoft.com/consumer-preview>

(And let me just add: As long as shared is as impractical as it is, we shouldn't remove that ability.)

-- 
Alex Rønne Petersen
alex@lycus.org
http://lycus.org