Some thoughts on the external recovery lock helper

Ira Cooper ira at
Fri Jun 17 15:10:10 UTC 2016

On Fri, Jun 17, 2016 at 10:56 AM, Richard Sharpe <
realrichardsharpe at> wrote:

> OK, so this part is the harder part. If the parent crashes then the
> helper needs to exit. It is not impossible, but a design where the
> helper is called as a (shared) library function gets this for free. We
> have lots of experience with this sort of thing in Samba.
> However, it is not impossible.
Shouldn't we be able to detect that the pipe/socket that we are writing to
has closed?


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