// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "base.pybind.h"

#include "../probability_util.h"

static bool shared_rng_initialized;
static std::mt19937_64 shared_rng;

std::mt19937_64 &PYBIND_SHARED_RNG() {
    if (!shared_rng_initialized) {
        shared_rng = externally_seeded_rng();
        shared_rng_initialized = true;
    }
    return shared_rng;
}
