Re: [HACKERS] Threads - Mailing list pgsql-hackers

From Duane Currie
Subject Re: [HACKERS] Threads
Date
Msg-id 199908031333.KAA08666@sandman.acadiau.ca
Whole thread Raw
In response to Re: [HACKERS] Threads  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
> "Ross J. Reedstrom" <reedstrm@wallace.ece.rice.edu> writes:
> > Hmm, what about threads in the frontend? Anyone know if libpq is thread
> > safe, and if not, how hard it might be to make it so?
> 
> It is not; the main reason why not is a brain-dead part of the API that
> exposes modifiable global variables.  Check the mail list archives
> (probably psql-interfaces, but maybe -hackers) for previous discussions
> with details.  Earlier this year I think, or maybe late 98.

hmmm...  usually this is repairable by creating wrapper functions which 
index the variables by thread id, and enforcing the use of the functions...
(maybe something for a wish list...) 

Duane


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