Re: any fairness in NTPL pthread mutexes?
From: Lee Revell
Date: Mon Oct 31 2005 - 13:07:34 EST
On Mon, 2005-10-31 at 11:57 -0600, Christopher Friesen wrote:
> I'm using NPTL.
> If I have a pthread mutex currently owned by a task, and two other tasks
> try to lock it, when the mutex is unlocked, are there any rules about
> the order in which the waiting tasks get the mutex (ie priority, FIFO,
I believe it's currently FIFO in violation of POSIX which specifies
priority based wakeup. AIUI one of the main goals of the realtime &
robust mutexes work is to fix this.
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