Re: [ros-dev] KeRundownThread question

[Alex Ionescu]

Hartmut Birr wrote:

>  Alex Ionescu wrote:
>
>   
>
> >  How can a user-mode thread create a mutex?
> >     
> >  
> Simply with CreateMutex. 
>  
CreateMutex creates a Mutant....

>  I change the assert statement to:
>
> ASSERT(Mutant->Header.Size == sizeof(KMUTANT)/sizeof(ULONG));
>
> This does ros crash only for mutex objects and not for mutant objects.
>   
>  
That's what the assert should do as well. Mutants have APC Disable = 0. 
Mutexes have it =1. Usermode can only create mutant, so apcdisable will 
always be 0.

I don't understand how user-mode can create a mutex?

>  - Hartmut
>   
>  
Best regards,
Alex Ionescu