view power.cpp @ 435:53c487885b2c api-inversion

begin pushing an adb_query_spec_t * all the way through query.

Almost all of the query specification data is in there now; missing are
the key list refinement and the query datum.

Mostly eliminate uses of the audioDB::sequenceLength member variable
throughout query.cpp.  It's still used in functions in index.cpp,
though, so make sure that a correct value is installed before calling
audioDB::index_query_loop()

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

int audiodb_power(adb_t *adb) {
  if(!(adb->flags & O_RDWR)) {
    return 1;
  }
  if(adb->header->length > 0) {
    return 1;
  }

  adb->header->flags |= O2_FLAG_POWER;
  return audiodb_sync_header(adb);
}