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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;
}
/**
* This is to be used only as a last resort. The proper way to end an
* io_context-driven thread is to simply stop scheduling work on the reactor
* and exit gracefully. DO NOT USE THIS IF THERE'S AN ALTERNATIVE!
*/
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
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