[Spread-users] Spread and fork ()

Yair Amir yairamir at cnds.jhu.edu
Wed Nov 24 08:29:53 EST 2004


It seems to me that the following code MAY work and the parent will not 
lose messages. I checked this briefly and I don't see a reason for it 
not to work. You will need to make SP_kill (which is an internal Spread 
library call) declared in the sp_funcs.h

Comments ?

parent_spread_handle = spread.connect(...)



if child
	child_spread_handle = spread.connect(...)
	child_spread_handle = spread.join(...)

	rest of child code

otherwise // parent
	carry on your merry way


	:) Yair.

J C Lawrence wrote:
> On Tue, 23 Nov 2004 18:26:26 -0500
> George Schlossnagle <george at omniti.com> wrote:
>>That should be safe.  What's unsupported is:
>>spread_handle = spread.connect(...)
>># carry on our merry way
> Right then.  That just leaves a potential race condition for me to
> resolve in terms of messages sent during the window between the
> disconnect and the (re-)connect on the other side of the fork().
> Hurm.
> --
> J C Lawrence
> ---------(*)                Satan, oscillate my metallic sonatas.
> claw at kanga.nu               He lived as a devil, eh?
> http://www.kanga.nu/~claw/  Evil is a name of a foeman, as I live.
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