[Disksim-users] ioreq_event's opid field

[Shahrukh Rohinton Tarapore]

Can someone explain the use of opid in the ioreq_event structure?  
Almost all of the source code sets it to zero and the documentation says 
to set it to zero when dealing with iotraces.  My intention would be to 
use it as a unique identifier for requests. I want to make sure 
assigning this variable arbitrary values won't kill the simulator.

-- shahrukh