Experimental Physics and
Industrial Control System

Michael Davidsaver <[email protected]> · Mon, 28 Jul 2014 15:31:33 -0400

On 07/25/2014 07:01 PM, Andrew Johnson wrote:
...
> Is this change actually correct? ... No, it's not, it gives me one
> lock-set per record even when there are DB links connecting all my
> records together. This is from a test database with lots of DB links
> in it:

I've added test code to detect this problem if it comes up again.  It
has a test database with 6 records in 3 locksets.  It then checks that
pairs of records are, or are not, in the same lockset.

Before Andrew's fix it fails like:

> ok  1 - dbLockGetLockId("reca")!=dbLockGetLockId("recb")
> ok  2 - dbLockGetLockId("reca")!=dbLockGetLockId("recc")
> ok  3 - dbLockGetLockId("reca")!=dbLockGetLockId("recd")
> ok  4 - dbLockGetLockId("reca")!=dbLockGetLockId("rece")
> ok  5 - dbLockGetLockId("reca")!=dbLockGetLockId("recf")
> not ok  6 - dbLockGetLockId("recb")==dbLockGetLockId("recc")
> ok  7 - dbLockGetLockId("recb")!=dbLockGetLockId("recd")
> ok  8 - dbLockGetLockId("recb")!=dbLockGetLockId("rece")
> ok  9 - dbLockGetLockId("recb")!=dbLockGetLockId("recf")
> ok 10 - dbLockGetLockId("recc")!=dbLockGetLockId("recd")
> ok 11 - dbLockGetLockId("recc")!=dbLockGetLockId("rece")
> ok 12 - dbLockGetLockId("recc")!=dbLockGetLockId("recf")
> not ok 13 - dbLockGetLockId("recd")==dbLockGetLockId("rece")
> not ok 14 - dbLockGetLockId("recd")==dbLockGetLockId("recf")
> not ok 15 - dbLockGetLockId("rece")==dbLockGetLockId("recf")

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System