asiocontext.hpp

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//    OpenVPN -- An application to securely tunnel IP networks
//               over a single port, with support for SSL/TLS-based
//               session authentication and key exchange,
//               packet encryption, packet authentication, and
//               packet compression.
//
//    Copyright (C) 2012- OpenVPN Inc.
//
//    SPDX-License-Identifier: MPL-2.0 OR AGPL-3.0-only WITH openvpn3-openssl-exception
//
 
#ifndef OPENVPN_ASIO_ASIOCONTEXT_H
#define OPENVPN_ASIO_ASIOCONTEXT_H
 
#include <vector>
#include <memory>
#include <mutex>
 
#include <openvpn/io/io.hpp>
 
namespace openvpn {
class AsioContextStore
{
  public:
    openvpn_io::io_context &new_context(int concurrency_hint)
    {
        openvpn_io::io_context *ioc = new openvpn_io::io_context(concurrency_hint);
        {
            std::lock_guard lock(mutex);
            contexts.emplace_back(ioc);
        }
        return *ioc;
    }
 
    void stop()
    {
        std::lock_guard lock(mutex);
 
        for (auto &context : contexts)
            context->stop();
    }
 
  private:
    std::mutex mutex;
    std::vector<std::unique_ptr<openvpn_io::io_context>> contexts;
};
} // namespace openvpn
 
#endif