annotate close.cpp @ 693:b1723ae7675e

begin work on sampling API

This is motivated by the need to be able to sample with arbitrary feature data
(e.g. from a feature file) against a database, for the JNMR "collections" paper
revisions or possible ISMIR paper revisions.  That bit doesn't work yet, but
the C-ified version of the current functionality (sample db x db and
sample key x db) works to the level of anecdotal tests.

The general approach is to mirror the _query_spec() API, where a whole heap
of knobs and twiddles are available to the user.  Unlike in the _query_spec()
API, not quite all of the knobs make sense (and even fewer are actually
implemented), but the basic idea is the same.

I pity the poor chump who will have to document all this.

extern "C" {
#include "audioDB_API.h"
}
#include "audioDB-internals.h"

void audiodb_close(adb_t *adb) {
  free(adb->path);
  free(adb->header);
  delete adb->keys;
  delete adb->keymap;
  delete adb->track_lengths;
  delete adb->track_offsets;
  gsl_rng_free(adb->rng);
  if(adb->cached_lsh) {
    delete adb->cached_lsh;
  }
  divest_lock(adb->fd);
  close(adb->fd);
  free(adb);
}