[ace-users] ACE_Thread_Mutex + priority inheritance

[Douglas C. Schmidt]

Hi Abdul,

>I sent this about 2 hours ago but it didn't make it to the list. Sending
>again.

It showed up last night and I replied.  Here's my reply again.

Thakns,

Doug

----------------------------------------

Hi Abdul, 


   Thanks for using the PRF. 



> ACE_VERSION: 5.5.9 

> The constructor of ACE_Thread_Mutex is as follows: 


> ACE_Thread_Mutex (const ACE_TCHAR *name=0, ACE_mutexattr_t 
> *attributes=0) 


> Notice that there is an optional argument called attributes. What
  I'm 
> trying to find out if there is a portable way under real-time
  operating 
> systems to have ACE_Thread_Mutex employ a priority inheritance
  protocol 
> to avoid the potential for priority inversion. 


> Is such a thing possible in ACE? 



I don't think this is possible with ACE (yet), but it should probably
be 
added, e.g., by creating a new ACE_Priority_Inheritance_Thread_Mutex 
class that uses ACE_Thread_Mutex and sets this attributes parameter 
portably! 

Thanks, 


        Doug 
-- 
Dr. Douglas C. Schmidt                       Professor and Associate Chair
Electrical Engineering and Computer Science  TEL: (615) 343-8197
Vanderbilt University                        WEB: www.dre.vanderbilt.edu/~schmidt
Nashville, TN 37203                          NET: d.schmidt at vanderbilt.edu