So Im writing a custom module to implement some of our business logic,
there are a few steps that im building into the module,  for example

conform_callerid
conform_destination 

what I want to achive should be fairly simple, but let me explain and im sure someone will tell me where to look.

when I call conform_callerid, I want to store a few bits of info so Initially I store them in a global variable ( yup lazy & dangerous I guess )

then I write the pv "get" function, to return the value from the global.

this was only done as a quick proof of concept.
but being global, im sure the variable will be overwritten by other message etc etc..

so I effectively want to store some custom fields against the message.
I didnt see this on the msg structure, but maybe I missed something

or is there a better way to achieve this ??

basically I want to be able to call conform_callerid 
then when I call conform_destination I want to look at some fields from the conform_callerid process  ( within the context of the message we are processing )

any pointers would be appreciated.

-- 
Sincerely

Jay