Nmap Development: Re: [NSE] specify source port

[Brandon Enright <bmenrigh () ucsd edu>]

On Wed, 30 May 2007 13:40:18 -0700 plus or minus some time doug () hcsw org
wrote:

<snip> 
> This creates a few technical problems however, the biggest of which is
> that you will only be able to run one of these scripts at a time (not
> in parallel) because the source port will be in use. Also, what does the
> script do if some other application is using that port?
>
> Best,
>
> Doug
Excuse my ignorance but does Lua/NSE offer any sort of atomic test-and-set
or semaphores/mutexes?  I know NSE was designed to be as parallel as
possible but there are bound to be shared-resource usage scenarios (like
this one) where IPC or locking/critical sections would be very useful.

Reading http://lua-users.org/wiki/ThreadsTutorial has left me slightly
confused as to what options are available inside of Lua, not what the
interpreter itself uses.

Brandon

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