Re: [HACKERS] Proposal for async support in libpq

Maarten Boekhold <maartenb@dutepp0.et.tudelft.nl>

From: Maarten Boekhold <maartenb@dutepp0.et.tudelft.nl>
To: Bruce Momjian <maillist@candle.pha.pa.us>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, hackers@postgreSQL.org
Date: 1998-04-18T10:10:47Z
Lists: pgsql-hackers
> In backend/libpq/pqcomm.c, I see pg_sendoob() which sends out-of-band
> data FROM the backend TO the client, but it is not called from anywhere.
> 
> This could be a method of signaling that a notification was pending, and
> sending out-of-band data FROm the client TO the backend could be used
> for cancelling a query.
> 
> out-of-band data causes a convenient signal to the process on the other
> end, which can easily be used to handle these cases.

Wasn't the problem with OOB data that java doesn't support this? I 
remember that OOB data has come up before on this list a long time ago, 
and that at that time some java bloke (peter?) started to complain :)

Maarten

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| TU Delft, The Netherlands, Faculty of Information Technology and Systems  |
|                   Department of Electrical Engineering                    |
|           Computer Architecture and Digital Technique section             |
|                          M.Boekhold@et.tudelft.nl                         |
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