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Re: lib/52386: pthread(3) doesn't respect PTHREAD_DESTRUCTOR_ITERATIONS
On Sun, Jul 09, 2017 at 11:30:13PM +0200, Kamil Rytarowski wrote:
> On 09.07.2017 22:20, Christos Zoulas wrote:
> > On Jul 9, 5:20pm, joerg%bec.de@localhost (Joerg Sonnenberger) wrote:
> > -- Subject: Re: lib/52386: pthread(3) doesn't respect PTHREAD_DESTRUCTOR_ITER
> > | On Sun, Jul 09, 2017 at 03:30:00PM +0000, n54%gmx.com@localhost wrote:
> > | > PTHREAD_DESTRUCTOR_ITERATIONS is not respected as the maximum number of destructor iterations.
> > |
> > | The test case is incorrect. PTHREAD_DESTRUCTOR_ITERATIONS specifies a
> > | lower limit on the number of iterations performed. It is explicitly not
> > | a hard limit. To quote POSIX:
> > |
> > | Calling pthread_setspecific() from a thread-specific data destructor
> > | routine may result either in lost storage (after at least
> > | PTHREAD_DESTRUCTOR_ITERATIONS attempts at destruction) or in an infinite
> > | loop.
> > I agree, but making the code using the iteration constant we advertise
> > is simple enough.
> > christos
> Before digging into POSIX, the attached test passes on FreeBSD, OpenBSD,
> Linux, Android, Darwin. Only NetBSD is distinct.
That doesn't make the test case correct though.
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