On Fri, 16 Oct 1998, Paul Mansfield wrote:
> what'd be really neat is if Exim became multi-threaded, stop all that forking
> off daemons and thus become much more efficient. however, this would also
> reduce robustness to some extent?
There's only one daemon. Forking from the daemon is to create a new
process for each incoming IP connection. Forking in many other
circumstances happens for security reasons. Running a lot of different
threads in the same address space is clearly less secure.
However, ignoring the security issue, if you wanted to revamp Exim to
use threads it would be a very large task. Almost better to rewrite from
scratch, I would have thought. The current code makes too many
assumptions about the data structure.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
--
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