[Ns-developers] Comment on ns Simulator::Schedule (re-post to ns-developers)

[Tom Henderson]

George Riley wrote:

> 
> I can't understand why the time passed to schedule is absolute time as
> opposed to relative time.  The expected use case is that the time 
> calculated
> is relative to current time (transmission time, speed of light delay, 
> time out values
> in TCP, etc).  The only absolute time use case is if we want an 
> application to
> start at some particular time, or the simulation to finish at some 
> time.  I think
> we need to optimize for the expected case, and say:
> 
> Schedule(rxTime, .....) // Schedule packet rx event
> 
> and
> 
> Schedule(myAppStartTime - Now())
> 
> when the abs time is needed.
> 

George and Mathieu,
I am fine with switching this to relative time, since it is relative in 
ns-2 and might make for a more readable port of code, and since relative 
event timing is probably more frequent than absolute.

This was suggested also by tommaso originally in this thread; forgive me 
for losing track if there was a reason cited to move to absolute.

Tom