In <11451440F335D21197F200104BAFD3A7B70BBE@EXCH2>, Robert Everland
([EMAIL PROTECTED]) in a fit of unbridled passion, wrote:
> Ok I have the CFX_Excel and it works fine for me, the thing I want
> to know is what does putting cflock around the tag actually do. I was
> testing it a second ago with 2 people to see if we would get an error if we
> click it at the same time( was hoping we didn't) and we didn't. So does
> cflock que it up for the next person, or what does it do exactly?
As per the documentation: (RTFM, dude)
The CFLOCK tag provides two types of locks to ensure the integrity of
shared data:
exclusive lock
read-only lock
An exclusive lock single-threads access to the CFML constructs in its
body. Single-threaded access implies that the body of the tag can be
executed by at most one request at a time. A request executing inside a
CFLOCK tag has an "exclusive lock" on the tag. No other requests are
allowed to start executing inside the tag while a request has an
exclusive lock. ColdFusion issues exclusive locks on a first-come,
first-served basis.
A read-only lock allows multiple requests to access the CFML constructs
inside its body concurrently. Therefore, read-only locks should only be
used when the shared data will only be read and not modified. If another
request already has an exclusive lock on the shared data, the request
will wait for the exclusive lock to be released before it can obtain it.
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