The csound.h file seems to suggest that the sequence
    csound = csoundCreate(NULL);
    if (!csoundCompile(csound, nxt-1, argv))
      csoundPerform(csound);
    csoundDestroy(csound);
should be used to call from a C/C++ program.  However while this does
run for me it crashes on exit.  If I omit the csoundDestroy(csound)
call it does not crash but I cannot call again.  What have I failed to
understand? 
==John ffitch


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I'd say if you run the csoundPerform(), it'll go to the end of
the score, so in order to perform again, you would need to
do csoundRewind(). Not sure why csoundDestroy() is crashing
it. It does not crash other applications (such as cstclsh).

Victor

At 17:58 20/03/2006, you wrote:
>The csound.h file seems to suggest that the sequence
>     csound = csoundCreate(NULL);
>     if (!csoundCompile(csound, nxt-1, argv))
>       csoundPerform(csound);
>     csoundDestroy(csound);
>should be used to call from a C/C++ program.  However while this does
>run for me it crashes on exit.  If I omit the csoundDestroy(csound)
>call it does not crash but I cannot call again.  What have I failed to
>understand?
>==John ffitch
>
>
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Victor Lazzarini
Music Technology Laboratory
Music Department
National University of Ireland, Maynooth 



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But there is no csoundRewind() defined.  There is a csoundCleanup but its 
r\^ole is unclear.  Surely if I dp not intent rerunning teh score then 
there is no need for a rewind anyway.

Getting more confused by teh minute.

==John ff

On Mon, 20 Mar 2006, Victor Lazzarini wrote:

> I'd say if you run the csoundPerform(), it'll go to the end of
> the score, so in order to perform again, you would need to
> do csoundRewind(). Not sure why csoundDestroy() is crashing
> it. It does not crash other applications (such as cstclsh).
> 
> Victor


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I assume that you are calling csoundInitialize() ?

The following does work for me:

    csoundInitialize(&argc, (char***)&argv, CSOUNDINIT_NO_SIGNAL_HANDLER);
    csound = csoundCreate(NULL);
    main_st = csoundPreCompile(csound);

    // Set Csound callbacks here

    //  One complete performance cycle
    main_st = csoundCompile(csound, argc, argv);
    if (!main_st) {
      while (csoundPerformKsmps(csound) == 0);
    }
    csoundDestroy(csound);


Calling csoundPerform() without the while loop should not be any different I
would think.

Anthony Kozar
anthonykozar AT sbcglobal DOT net




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