I think it's important to double lock the instantiation of application scoped CFCs.

Here, without a lock, i suppose you could get some errors out of this with requests passing through before the CFC was fully initialized if a function in this Utility lib was needed immediately, or without a double lock, you could wind up creating several instances of this CFC in memory before one finally kept the pointer and getting a few errors as above

When a server is recycled, you can have waiting requests that come thru in a surge at application startup, even on a low traffic site.

? or am i missing something ?


Alpino, Justin wrote:
 
Hi J,

I don't think it's necessary to lock when copying your object from
application to request, or even on instantiation unless it will prevent
against a race condition. Shared scopes in MX are synchronized and will
have 'locks' implicitly performed on them when their state is changed
(added to, updated or items removed). If you are unsure, lock to be
safe.

Thanks,

Justin


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