libminifi/test/libtest/integration/CivetLibrary.h

/**
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */
#pragma once

#include <atomic>
#include "civetweb.h"

class CivetLibrary {
 public:
  CivetLibrary() {
    if (getCounter()++ == 0) {
      mg_init_library(0);
    }
  }
  ~CivetLibrary() {
    if (--getCounter() == 0) {
      mg_exit_library();
    }
  }
 private:
  static std::atomic<int>& getCounter() {
    static std::atomic<int> counter{0};
    return counter;
  }
};