comparison audioDB-internals.h @ 468:4dbd7917bf9e api-inversion

YAY!

audioDB::index_query_loop is now disentangled.  Hardwired lsh_in_core to
true, and invented a new QID flag for !lsh_exact.  All tests continue to
pass.

The plans now:
- extract the audiodb_query_spec() function from inside audioDB::query,
  and move audioDB::query (and the timestamps function) to audioDB.cpp;
- write libtests/0036 and libtests/0037 in terms of audiodb_query_spec();
- rewrite all the other libtests in terms of audiodb_query_spec();
- delete audiodb_query() [ and maybe rename audiodb_query_spec(), I
  dunno];
- implement example bindings (probably to Lisp, because that's what I
  know best);
- see if anyone other than me can work out how the API works.  If not,
  provide documentation;
- revise API in the light of user feedback.

  * parallel using the same adb handle.  (b) is in practice a little
  * bit academic because at the moment we're seeking all over the disk
  * using adb->fd, but changing to use pread() might win us
  * threadsafety eventually.
  */
-// FIXME moved to audioDB.h for now
-
+typedef struct adb_qstate_internal {
+  Accumulator *accumulator;
+  std::set<std::string> *allowed_keys;
+  std::priority_queue<PointPair> *exact_evaluation_queue;
+  LSH *lsh;
+} adb_qstate_internal_t;
+
+/* the transparent version of the opaque (forward-declared) adb_t. */
 struct adb {
   char *path;
   int fd;
   int flags;
   adb_header_t *header;

 int audiodb_query_spec_qpointers(adb_t *, adb_query_spec_t *, double **, double **, adb_qpointers_internal_t *);
 int audiodb_query_queue_loop(adb_t *, adb_query_spec_t *, adb_qstate_internal_t *, double *, adb_qpointers_internal_t *);
 int audiodb_query_loop(adb_t *, adb_query_spec_t *, adb_qstate_internal_t *);
 char *audiodb_index_get_name(const char *, double, uint32_t);
 bool audiodb_index_exists(const char *, double, uint32_t);
+int audiodb_index_query_loop(adb_t *, adb_query_spec_t *, adb_qstate_internal_t *);