Pthread.... stuffs ... onwer of mutex

rajsun · 07-26-2005, 01:29 AM

Hi all,
I m using pthread library in Linux platform using C. Is there any way to finout who is current the onwer of the mutex? If the mutex is locked by some thread.

Like : Let we have "threadA", "threadB" and "threadC". threadA locked the mutex. Now is it possible to find out the from threadC that the mutex has been locked by threadA?

Plz help me .........

Thanking U all,
With Regard
Rajesh.

vladmihaisima · 07-26-2005, 07:40 AM

One possible way:

Code:

lock(mutex);

lock(mutex_owner);
mutex_owner_string=current_thread;
unlock(mutex_owner);

... work

lock(mutex_owner);
mutex_owner_string=NULL;
unlock(mutex_owner);

unlock(mutext);

For query:

Code:

lock(mutex_owner);
if(mutex_owner_string!=NULL) {
   ... some work
}
unlock(mutex_owner);