session_core.hpp

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// SPDX-License-Identifier: LGPL-2.1-or-later
#pragma once
 
#include <sshpp/config.hpp>
 
#include <sshpp/detail/native_fwd.hpp>
 
#include <atomic>
#include <memory>
#include <mutex>
 
namespace sshpp::detail {
 
class SessionCore {
public:
    explicit SessionCore(native_session raw) noexcept : raw_(raw) {}
    ~SessionCore();
 
    SessionCore(const SessionCore&)            = delete;
    SessionCore& operator=(const SessionCore&) = delete;
 
    native_session raw() const noexcept { return raw_; }
    std::recursive_mutex& mutex() noexcept { return mutex_; }
 
    bool valid() const noexcept { return raw_ != nullptr; }
 
    void replace(native_session raw) noexcept;
 
    void request_cancel() noexcept { cancel_requested_.store(true, std::memory_order_relaxed); }
    void clear_cancel() noexcept { cancel_requested_.store(false, std::memory_order_relaxed); }
    bool cancel_requested() const noexcept { return cancel_requested_.load(std::memory_order_relaxed); }
 
private:
    native_session       raw_;
    std::recursive_mutex mutex_;
    std::atomic<bool>    cancel_requested_{false};
};
 
using SessionCorePtr = std::shared_ptr<SessionCore>;
 
} // namespace sshpp::detail
 
#if SSHPP_HEADER_ONLY
#include <sshpp/detail/session_core.ipp>
#endif