Обсуждение: Is this valid?

I am not sure if this is the right mailing list I talk to. Please let me
know if I had violated any unwritten rules. :)

I have a global variable PGconn* m_pgconn that is the connection handle
for connecting to the postgresql database. Can I access/use the handle
from multiple threads? Say I have a thread that does some insertion
through this handle/database connection(m_pgconn) and also another
thread that do some insertion *on the same table* through this
handle(m_pgconn), will that break?

Thanks

-- 
Wei Weng
Network Software Engineer
KenCast Inc.

No, what you want to do is not thread safe.

Only 1 thread should access a Pgconn object.

See:
http://www2.ca.postgresql.org/users-lounge/docs/7.0/postgres/libpq-threading
.htm


Rick Gregory

-----Original Message-----
From: pgsql-interfaces-owner@postgresql.org
[mailto:pgsql-interfaces-owner@postgresql.org]On Behalf Of Wei Weng
Sent: Monday, August 12, 2002 7:26 PM
To: pgsql-interfaces@postgresql.org
Subject: [INTERFACES] Is this valid?

I am not sure if this is the right mailing list I talk to. Please let me
know if I had violated any unwritten rules. :)

I have a global variable PGconn* m_pgconn that is the connection handle
for connecting to the postgresql database. Can I access/use the handle
from multiple threads? Say I have a thread that does some insertion
through this handle/database connection(m_pgconn) and also another
thread that do some insertion *on the same table* through this
handle(m_pgconn), will that break?

Thanks

--
Wei Weng
Network Software Engineer
KenCast Inc.



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