[fpc-devel] custom ThreadManager and MemoryMutexManager for hard realtime

[Jonas Maebe]

On 05 Jan 2010, at 16:39, Stefan Kisdaroczi wrote:

> Looking at rtl/inc/heap.inc from 2.4.0 it seems that the locking is  
> now done using "CriticalSections",
> is that true ?

Yes.

> To adapt my ThreadManager for 2.4.0 I think I have to:
> - remove the SetMemoryMutexManager() call
> - implement the *CriticalSection() calls in my XenoThreadManager
>
> Has someone any hints, comments or concerns about the approach ?

It sounds perfectly fine to me. You should also experience much better  
performance with the new heap manager, as the critical section is  
seldom used in normal operation. If you want a program in which this  
scenario is stress tested, you can use http://svn.freepascal.org/svn/fpc/trunk/tests/test/theapthread.pp


Jonas