Subj : Re: recursive mutexes
To   : comp.programming.threads
From : Peter Dimov
Date : Sun May 15 2005 06:22 pm

Uenal Mutlu wrote:
> "David Schwartz" wrote
>>     Yes, it can and must know that it already has the lock. A
>> function that operates on X should be defined as being called with X
>> locked, or with X unlocked. It could even take a boolean that
>> indicates whether the caller has locked the object or not, though
>> this is rarely the right thing to do.
>
> You are unnecessarily complicating things and make the program
> slower by doing these testings.

No, he's in fact making the program faster.

.