static ERL_NIF_TERM macros(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
const ERL_NIF_TERM* a;
ERL_NIF_TERM lists, tuples;
int arity;
if (!enif_get_tuple(env, argv[0], &arity, &a) || arity != 9) {
return enif_make_badarg(env);
}
lists = enif_make_list(env,9,
enif_make_list1(env,a[0]),
enif_make_list2(env,a[0],a[1]),
enif_make_list3(env,a[0],a[1],a[2]),
enif_make_list4(env,a[0],a[1],a[2],a[3]),
enif_make_list5(env,a[0],a[1],a[2],a[3],a[4]),
enif_make_list6(env,a[0],a[1],a[2],a[3],a[4],a[5]),
enif_make_list7(env,a[0],a[1],a[2],a[3],a[4],a[5],a[6]),
enif_make_list8(env,a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]),
enif_make_list9(env,a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]));
tuples = enif_make_list(env,9,
enif_make_tuple1(env,a[0]),
enif_make_tuple2(env,a[0],a[1]),
enif_make_tuple3(env,a[0],a[1],a[2]),
enif_make_tuple4(env,a[0],a[1],a[2],a[3]),
enif_make_tuple5(env,a[0],a[1],a[2],a[3],a[4]),
enif_make_tuple6(env,a[0],a[1],a[2],a[3],a[4],a[5]),
enif_make_tuple7(env,a[0],a[1],a[2],a[3],a[4],a[5],a[6]),
enif_make_tuple8(env,a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7]),
enif_make_tuple9(env,a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8]));
return enif_make_tuple2(env,lists,tuples);
}
ERL_NIF_TERM histogram_stats(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
histogram_handle* handle;
if (enif_get_resource(env,argv[0],histogram_RESOURCE,(void**)&handle))
{
pthread_mutex_lock(&(handle->m));
std::vector<double> percentiles;
percentiles.push_back(0.500);
percentiles.push_back(0.950);
percentiles.push_back(0.990);
std::vector<double> scores(handle->p->percentiles(percentiles));
ERL_NIF_TERM result =
enif_make_list8(env,
STAT_TUPLE(ATOM_MIN, handle->p->min()),
STAT_TUPLE(ATOM_MAX, handle->p->max()),
STAT_TUPLE(ATOM_MEAN, handle->p->mean()),
STAT_TUPLE(ATOM_COUNT, handle->p->count()),
STAT_TUPLE(ATOM_STDDEV, handle->p->stddev()),
STAT_TUPLE(ATOM_P50, scores[0]),
STAT_TUPLE(ATOM_P95, scores[1]),
STAT_TUPLE(ATOM_P99, scores[2]));
pthread_mutex_unlock(&(handle->m));
return result;
}
else
return enif_make_badarg(env);
}
/**
* Erlang Wrapper for binary geonum_neighbor
*/
ERL_NIF_TERM
erl_geonum_all_neighbors(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{
long long neighbors[8];
long long geonum;
if(!enif_get_int64(env, argv[0], &geonum)) {
return enif_make_badarg(env);
}
geonum_all_neighbors(geonum, neighbors);
return make_ok(env, enif_make_list8(env,
enif_make_int64(env, neighbors[0]),
enif_make_int64(env, neighbors[1]),
enif_make_int64(env, neighbors[2]),
enif_make_int64(env, neighbors[3]),
enif_make_int64(env, neighbors[4]),
enif_make_int64(env, neighbors[5]),
enif_make_int64(env, neighbors[6]),
enif_make_int64(env, neighbors[7])
));
}