373d5ea103
It used to call `enet_host_service` until all events were consumed, but that also meant constantly polling the connection leading to potentially unbounded processing time. It now only service the connection once, and instead consumes all the retrieved events via `enet_host_check_events`.
138 lines
5.2 KiB
C++
138 lines
5.2 KiB
C++
/*************************************************************************/
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/* enet_multiplayer_peer.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef NETWORKED_MULTIPLAYER_ENET_H
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#define NETWORKED_MULTIPLAYER_ENET_H
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#include "core/crypto/crypto.h"
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#include "core/multiplayer/multiplayer_peer.h"
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#include "enet_connection.h"
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#include <enet/enet.h>
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class ENetMultiplayerPeer : public MultiplayerPeer {
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GDCLASS(ENetMultiplayerPeer, MultiplayerPeer);
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private:
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enum {
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SYSMSG_ADD_PEER,
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SYSMSG_REMOVE_PEER
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};
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enum {
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SYSCH_CONFIG = 0,
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SYSCH_RELIABLE = 1,
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SYSCH_UNRELIABLE = 2,
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SYSCH_MAX = 3
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};
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enum Mode {
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MODE_NONE,
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MODE_SERVER,
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MODE_CLIENT,
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MODE_MESH,
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};
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Mode active_mode = MODE_NONE;
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uint32_t unique_id = 0;
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int target_peer = 0;
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bool server_relay = true;
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ConnectionStatus connection_status = CONNECTION_DISCONNECTED;
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Map<int, Ref<ENetConnection>> hosts;
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Map<int, Ref<ENetPacketPeer>> peers;
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struct Packet {
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ENetPacket *packet = nullptr;
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int from = 0;
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int channel = 0;
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};
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List<Packet> incoming_packets;
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Packet current_packet;
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void _pop_current_packet();
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bool _parse_server_event(ENetConnection::EventType p_event_type, ENetConnection::Event &p_event);
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bool _parse_client_event(ENetConnection::EventType p_event_type, ENetConnection::Event &p_event);
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bool _parse_mesh_event(ENetConnection::EventType p_event_type, ENetConnection::Event &p_event, int p_peer_id);
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void _relay(int p_from, int p_to, enet_uint8 p_channel, ENetPacket *p_packet);
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void _notify_peers(int p_id, bool p_connected);
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void _destroy_unused(ENetPacket *p_packet);
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_FORCE_INLINE_ bool _is_active() const { return active_mode != MODE_NONE; }
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IPAddress bind_ip;
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protected:
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static void _bind_methods();
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public:
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virtual void set_target_peer(int p_peer) override;
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virtual int get_packet_peer() const override;
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virtual void poll() override;
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virtual bool is_server() const override;
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// Overriden so we can instrument the DTLSServer when needed.
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virtual void set_refuse_new_connections(bool p_enabled) override;
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virtual ConnectionStatus get_connection_status() const override;
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virtual int get_unique_id() const override;
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virtual int get_max_packet_size() const override;
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virtual int get_available_packet_count() const override;
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virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size) override;
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virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size) override;
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Error create_server(int p_port, int p_max_clients = 32, int p_max_channels = 0, int p_in_bandwidth = 0, int p_out_bandwidth = 0);
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Error create_client(const String &p_address, int p_port, int p_channel_count = 0, int p_in_bandwidth = 0, int p_out_bandwidth = 0, int p_local_port = 0);
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Error create_mesh(int p_id);
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Error add_mesh_peer(int p_id, Ref<ENetConnection> p_host);
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void close_connection(uint32_t wait_usec = 100);
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void disconnect_peer(int p_peer, bool now = false);
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void set_bind_ip(const IPAddress &p_ip);
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void set_server_relay_enabled(bool p_enabled);
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bool is_server_relay_enabled() const;
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Ref<ENetConnection> get_host() const;
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Ref<ENetPacketPeer> get_peer(int p_id) const;
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ENetMultiplayerPeer();
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~ENetMultiplayerPeer();
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};
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#endif // NETWORKED_MULTIPLAYER_ENET_H
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