Re: [eclipse-clp-users] Events

From: Kish Shen <kisshen_at_...5...>
Date: Fri, 27 Jan 2012 03:04:37 +0000
Hi Bogdan,

First, let me repeat what I have said in my answers to some of your 
previous posts about using C and ECLiPSe: ECLiPSe is *not* a C solver 
library  -- this still seem to be what you are trying to do, as (if I 
understood you correctly), you are trying to call bb_min from C, and 
this is almost certainly not the right level at which the C interface 
should be used (i.e. the bb_min should be called by your ECLiPSe code, 
so you write most of your code in ECLiPSe, and only call the top-level 
goal from C).

As for your question, I am not sure I understand you: you call an 
ECLiPSe goal from C by posting it, and then calling ec_resume() to pass 
control to ECLiPSe, which then execute the goal(s) you posted, and when 
it has finished (returned a solution, or otherwise terminated (failed or 
aborted)), control is returned to C, i.e. you return from the call to 
ec_resume(), so you have no need to have any signal from ECLiPSe to C to 
tell you that the goal have finished -- there is only a single thread of 
execution, and control is passed between ECLiPSe and C. Have I 
misunderstood what you wanted?

Note that the C and C++ interfaces are essentially the same in ECLiPSe 
-- the C++ interface is essnetially just a C++ wrapper layer around the 
C interface, so you can read the chapters on the C++ interface in the 
Embedding and Interfacing manual to understand the C interface as well.



On 26/01/2012 13:36, Bogdan Tanasa wrote:
> Hi,
> I am interested if there is a way to signal events to a C application when a
> goal posted in eclipse has finished.
> For example inside bb_min a search method is called. Every time when the
> search produces a valid solution I would to notify the C application and do
> some processing.
> Thanks,
> Bogdan.
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Received on Fri Jan 27 2012 - 03:04:47 CET

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