mirror of
https://github.com/transmission/transmission
synced 2025-01-03 13:35:36 +00:00
71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
// This file Copyright © 2007-2022 Mnemosyne LLC.
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// It may be used under GPLv2 (SPDX: GPL-2.0-only), GPLv3 (SPDX: GPL-3.0-only),
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// or any future license endorsed by Mnemosyne LLC.
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// License text can be found in the licenses/ folder.
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#pragma once
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#ifndef __TRANSMISSION__
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#error only libtransmission should #include this header.
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#endif
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#include <ctime> // time_t
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#include <cstdint>
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#include "transmission.h" // tr_port_forwarding
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#include "natpmp.h"
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#include "net.h" // tr_port
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class tr_natpmp
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{
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public:
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tr_natpmp()
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{
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natpmp_.s = TR_BAD_SOCKET; /* socket */
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}
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~tr_natpmp()
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{
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closenatpmp(&natpmp_);
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}
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[[nodiscard]] constexpr auto renewTime() const noexcept
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{
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return renew_time_;
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}
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tr_port_forwarding pulse(tr_port port, bool is_enabled, tr_port* public_port, tr_port* real_private_port);
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private:
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enum tr_natpmp_state
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{
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TR_NATPMP_IDLE,
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TR_NATPMP_ERR,
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TR_NATPMP_DISCOVER,
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TR_NATPMP_RECV_PUB,
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TR_NATPMP_SEND_MAP,
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TR_NATPMP_RECV_MAP,
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TR_NATPMP_SEND_UNMAP,
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TR_NATPMP_RECV_UNMAP
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};
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static constexpr auto LifetimeSecs = uint32_t{ 3600 };
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static constexpr auto CommandWaitSecs = time_t{ 8 };
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[[nodiscard]] bool canSendCommand() const;
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void setCommandTime();
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natpmp_t natpmp_ = {};
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tr_port public_port_ = {};
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tr_port private_port_ = {};
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time_t renew_time_ = 0;
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time_t command_time_ = 0;
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tr_natpmp_state state_ = TR_NATPMP_DISCOVER;
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bool has_discovered_ = false;
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bool is_mapped_ = false;
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};
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