int foo_set(CSOUND*csound, FOO *p)
{
  p->flag = 0;
  ...
  return OK;
}

int foo_perf(CSOUND*csound, FOO *p)
{
    if (p->flag == 0) {
       ...unload or whatever...
       p->flag = 1;
    }
    .....
    return OK;
;

==John ffitch

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