Hi,

My case is very similar to http://lists.mysql.com/plusplus/2779.

Basically, my programs core dumps anytime I call ping.

Some system info:
5.3-RELEASE FreeBSD 5.3-RELEASE
db: 4.1.10a-log
db client: mysql Ver 14.6 Distrib 4.1.5-gamma, for
portbld-freebsd5.3 (i386)

Any Idea why this could be happening?

Thanks,

Nash

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Nash Kabbara wrote:
Then I would suggest the same answer Sinisa gave: are you certain that
MySQL++ is built against the same MySQL C library as you're linking your
program against?

Are you by chance using a binary release of MySQL++?

Do the examples work?

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Hi Warren,

The answer is yes to all these questions, but I noticed that ping()
makes the program core dump when it is called on a Connection object
that hasn't been connected yet (real_connect not yet called, in my case).

I tested this using the mysql c api and the same thing happened
also. If I call mysql_ping on a MYSQL handle that hasn't been connected
to the db, then the program core dumps.

At least now I know this isn't caused by mysql++.

I would assume that this should return a non-zero response as
opposed to core dumping. Is my assumption correct? I can't seem to find
any reference to this online.


Thanks,

Nash

Warren Young wrote:

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On Mon, Jun 27, 2005 at 04:40:18PM -0500, Nash Kabbara wrote:
No. If a function requires a MYSQL handle, you must give it a valid one,
not something with random data. (which is what an uninitialized handle is)

- Chris


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Chris Frey wrote:
True, but I don't think there's any particular reason that a user would
know that, especially if MySQL++ ever does go database-independent.

Since fixing this doesn't change the ABI, I've added it to the Wishlist
for v2.1 or later.

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On Mon, Jun 27, 2005 at 10:34:38PM -0600, Warren Young wrote:
Ahhh... just read your Wishlist entry, and see it now. I was talking
about the C api, and couldn't understand why anyone would pass in a
random handle. :-)

- Chris


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