140 lines
5.4 KiB
C++
140 lines
5.4 KiB
C++
/*************************************************************************/
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/* enet_connection.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) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 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 ENET_CONNECTION_H
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#define ENET_CONNECTION_H
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#include "core/object/ref_counted.h"
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#include "core/crypto/crypto.h"
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#include "enet_packet_peer.h"
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#include <enet/enet.h>
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class ENetConnection : public RefCounted {
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GDCLASS(ENetConnection, RefCounted);
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public:
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enum CompressionMode {
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COMPRESS_NONE = 0,
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COMPRESS_RANGE_CODER,
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COMPRESS_FASTLZ,
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COMPRESS_ZLIB,
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COMPRESS_ZSTD,
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};
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enum HostStatistic {
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HOST_TOTAL_SENT_DATA,
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HOST_TOTAL_SENT_PACKETS,
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HOST_TOTAL_RECEIVED_DATA,
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HOST_TOTAL_RECEIVED_PACKETS,
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};
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enum EventType {
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EVENT_ERROR = -1,
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EVENT_NONE = 0,
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EVENT_CONNECT,
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EVENT_DISCONNECT,
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EVENT_RECEIVE,
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};
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struct Event {
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Ref<ENetPacketPeer> peer;
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enet_uint8 channel_id = 0;
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enet_uint32 data = 0;
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ENetPacket *packet = nullptr;
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};
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protected:
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static void _bind_methods();
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private:
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ENetHost *host = nullptr;
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List<Ref<ENetPacketPeer>> peers;
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EventType _parse_event(const ENetEvent &p_event, Event &r_event);
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Error _create(ENetAddress *p_address, int p_max_peers, int p_max_channels, int p_in_bandwidth, int p_out_bandwidth);
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Array _service(int p_timeout = 0);
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void _broadcast(int p_channel, PackedByteArray p_packet, int p_flags);
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Array _get_peers();
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class Compressor {
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private:
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CompressionMode mode = COMPRESS_NONE;
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Vector<uint8_t> src_mem;
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Vector<uint8_t> dst_mem;
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ENetCompressor enet_compressor;
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Compressor(CompressionMode mode);
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static size_t enet_compress(void *context, const ENetBuffer *inBuffers, size_t inBufferCount, size_t inLimit, enet_uint8 *outData, size_t outLimit);
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static size_t enet_decompress(void *context, const enet_uint8 *inData, size_t inLimit, enet_uint8 *outData, size_t outLimit);
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static void enet_compressor_destroy(void *context) {
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memdelete((Compressor *)context);
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}
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public:
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static void setup(ENetHost *p_host, CompressionMode p_mode);
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};
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public:
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void broadcast(enet_uint8 p_channel, ENetPacket *p_packet);
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Error create_host_bound(const IPAddress &p_bind_address = IPAddress("*"), int p_port = 0, int p_max_peers = 32, int p_max_channels = 0, int p_in_bandwidth = 0, int p_out_bandwidth = 0);
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Error create_host(int p_max_peers = 32, int p_max_channels = 0, int p_in_bandwidth = 0, int p_out_bandwidth = 0);
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void destroy();
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Ref<ENetPacketPeer> connect_to_host(const String &p_address, int p_port, int p_channels, int p_data = 0);
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EventType service(int p_timeout, Event &r_event);
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int check_events(EventType &r_type, Event &r_event);
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void flush();
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void bandwidth_limit(int p_in_bandwidth = 0, int p_out_bandwidth = 0);
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void channel_limit(int p_max_channels);
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void bandwidth_throttle();
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void compress(CompressionMode p_mode);
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double pop_statistic(HostStatistic p_stat);
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int get_max_channels() const;
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// Extras
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void get_peers(List<Ref<ENetPacketPeer>> &r_peers);
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int get_local_port() const;
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// Godot additions
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Error dtls_server_setup(Ref<CryptoKey> p_key, Ref<X509Certificate> p_cert);
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Error dtls_client_setup(Ref<X509Certificate> p_cert, const String &p_hostname, bool p_verify = true);
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void refuse_new_connections(bool p_refuse);
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ENetConnection() {}
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~ENetConnection();
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};
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VARIANT_ENUM_CAST(ENetConnection::CompressionMode);
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VARIANT_ENUM_CAST(ENetConnection::EventType);
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VARIANT_ENUM_CAST(ENetConnection::HostStatistic);
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#endif // ENET_CONNECTION_H
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