[Quickfix-developers] FIX message replay by a quickfix acceptor

[Andrew F. <af...@ra...>]

Hello all, been looking through the online docs and list archives but 
haven't found anything yet so here goes -

In the system i've inherited (environment is C++ on 64bit Linux), there 
is an "Order Matcher" (OM) which sometimes routes orders out to the 
outside world via a Quickfix Initiator (QI).  OM and QI communicate via 
messaging, ie. NOT via Quickfix.

Here's my task:  when OM recovers from a crash, it must query QI for all 
events which occurred since it crashed at XX:XX time.

Broadly, the options i've considered are A) QA itself responds to OM's 
query, or B) a separate process responds to OM's query.


1.  If OM were a quickfix Initiator and QI were a quickfix Acceptor, i 
realize this would be a regular recovery reconnect.  Given that QI acts 
as a sort of "Acceptor", as an Initiator object does it have access to 
the same replay functionality?

2.  Further to option B), given that QI continuously writes to its FIX 
logs, would there be any problem with a secondary process reading the 
file?  Basically i'm asking what type of file locking is the quickfix 
Initiator using?


Any help greatly appreciated.


thank you,

Andrew Freese
af...@ra...