linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* clone() + glibc thread safe?
@ 2006-01-12  1:40 Russell Leighton
  2006-01-12  7:28 ` Arjan van de Ven
  0 siblings, 1 reply; 2+ messages in thread
From: Russell Leighton @ 2006-01-12  1:40 UTC (permalink / raw)
  To: linux-kernel, libc-alpha


Can you safely use glibc functions in a thread safe way (e.g., malloc() 
and friends) from threads generated by:

     clone(f, stack, CLONE_FS|CLONE_FILES|CLONE_VM, t)

Thx


Russ



^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: clone() + glibc thread safe?
  2006-01-12  1:40 clone() + glibc thread safe? Russell Leighton
@ 2006-01-12  7:28 ` Arjan van de Ven
  0 siblings, 0 replies; 2+ messages in thread
From: Arjan van de Ven @ 2006-01-12  7:28 UTC (permalink / raw)
  To: Russell Leighton; +Cc: linux-kernel, libc-alpha

On Wed, 2006-01-11 at 20:40 -0500, Russell Leighton wrote:
> Can you safely use glibc functions in a thread safe way (e.g., malloc() 
> and friends) from threads generated by:
> 
>      clone(f, stack, CLONE_FS|CLONE_FILES|CLONE_VM, t)

no

unless you tell glibc you're using threads (by using the glibc threading
primitives) glibc doesn't provide such thread safety.
(glibc at runtime knows you have threads and switches to thread-safe
operations)


^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2006-01-12  7:28 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2006-01-12  1:40 clone() + glibc thread safe? Russell Leighton
2006-01-12  7:28 ` Arjan van de Ven

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).