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/**
* @copyright
* ====================================================================
* 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.
* ====================================================================
* @endcopyright
*/
#ifndef SVNXX_PRIVATE_INIT_HPP
#define SVNXX_PRIVATE_INIT_HPP
#include <memory>
#include <mutex>
#include <stdexcept>
#include <apr_pools.h>
#include "svnxx/init.hpp"
#include "svnxx/detail/noncopyable.hpp"
namespace apache {
namespace subversion {
namespace svnxx {
namespace detail {
class global_state : noncopyable
{
public:
using ptr = std::shared_ptr<global_state>;
using weak_ptr = std::weak_ptr<global_state>;
~global_state();
static ptr create();
static ptr get()
{
auto state = self.lock();
if (!state)
{
throw std::logic_error(
"The SVN++ library is not initialized."
" Did you forget to create an instance of "
" the apache::subversion::svnxx::init class?");
}
return state;
}
apr_pool_t* get_root_pool() const noexcept
{
return root_pool;
}
private:
// Thou shalt not create global_states other than through the factory.
global_state();
apr_pool_t* root_pool{nullptr};
static std::mutex guard;
static weak_ptr self;
};
} // namespace detail
} // namespace svnxx
} // namespace subversion
} // namespace apache
#endif // SVNXX_PRIVATE_INIT_HPP
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