[boost] [MPI?] which API should i use for this?

Subject: [boost] [MPI?] which API should i use for this?
From: David M. Cotter (me_at_[hidden])
Date: 2009-10-07 15:18:32

I have a need to send an "event" to the "main thread's event loop".

this may be done from a preemptive thread, a cooperative thread, a  
timer, or even the main thread itself.  i want it to be posted into  
the event stream and handled in the order that events get processed on  
the main thread.

would i use 'MPI'?  or 'interprocess'?  or is there a 'thread' way to  
do this?
if it's MPI, what would be the right call?

i'm coming from Mac land where i have traditionally used  
PostEventToQueue()