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Old 07-26-2005, 01:29 AM   #1
rajsun
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Registered: Mar 2005
Posts: 61

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


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.
 
Old 07-26-2005, 07:40 AM   #2
vladmihaisima
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Registered: Oct 2002
Location: Delft, Netherlands
Distribution: Gentoo
Posts: 196

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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);
 
  


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