[Lazarus] Multi-threading support in IDE

[Martin]

Mattias Gärtner wrote:
> Zitat von Vincent Snijders <vsnijders at vodafonevast.nl>:
>>>> I like Florian's idea too. As for your statement above, how often 
>>>> does this really happen? In the last 4-5 years that I have been 
>>>> using FPC, the compiler has not once "crashed" on me. Yes it might 
>>>> report that there is a compiler error in my project, but I do not 
>>>> consider that a crash.
>>>
>>> The compiler is started on every compile which is the cleanest start 
>>> you can get. A threaded compiler must have a restart, which is less 
>>> clean. There will be more crashes and bugs.
>>> What happens if the restart fails?
>>
>> For the debugger, we have reset debugger.
>> For the compiler, we would add a reset compiler option.
>
> I meant, when the compiler is in another thread and the restart fails, 
> what should happen? You can only restart the IDE.

Just out of curiosity, what are we trying to solve?

How much benefit would a build in or preloaded fpc inside Lazarus be? 
Most Operating System cache disk access. So once you used, it is in 
memory, never mind if that memory belongs to lazarus, or the OS.

Of course another thread would solve issues with unresponsiveness. But 
that could be done by having another thread, that runs the external 
process. Or if the AsyncProcess worked, it could be done, by using this 
+ moving to an event-driven model.

Or am I missing some crucial point?

Martin