Re: [Threads-devel] Mutexes

From: Matt Hurd (matt.hurd_at_[hidden])
Date: 2006-03-01 12:11:31

> > Any thoughts on this?
>
> Well, OS Mutexes might be recursive on Windows, but Critical Sections
> aren't. 

Huh?  I haven't programmed on windows for a bit but I'm pretty sure they are:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/critical_section_objects.asp

<quote>
When a thread owns a critical section, it can make additional calls to 
EnterCriticalSection or TryEnterCriticalSection without blocking its 
execution. This prevents a thread from deadlocking itself while waiting for a 
critical section that it already owns. To release its ownership, the thread 
must call LeaveCriticalSection one time for each time that it entered the 
critical section. There is no guarantee about the order in which waiting 
threads will acquire ownership of the critical section.
</quote>

matt.