263 lines
10 KiB
C++
263 lines
10 KiB
C++
/*************************************************************************/
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/* enet_packet_peer.cpp */
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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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#include "enet_packet_peer.h"
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void ENetPacketPeer::peer_disconnect(int p_data) {
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ERR_FAIL_COND(!peer);
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enet_peer_disconnect(peer, p_data);
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}
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void ENetPacketPeer::peer_disconnect_later(int p_data) {
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ERR_FAIL_COND(!peer);
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enet_peer_disconnect_later(peer, p_data);
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}
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void ENetPacketPeer::peer_disconnect_now(int p_data) {
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ERR_FAIL_COND(!peer);
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enet_peer_disconnect_now(peer, p_data);
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_on_disconnect();
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}
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void ENetPacketPeer::ping() {
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ERR_FAIL_COND(!peer);
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enet_peer_ping(peer);
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}
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void ENetPacketPeer::ping_interval(int p_interval) {
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ERR_FAIL_COND(!peer);
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enet_peer_ping_interval(peer, p_interval);
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}
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int ENetPacketPeer::send(uint8_t p_channel, ENetPacket *p_packet) {
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ERR_FAIL_COND_V(peer == nullptr, -1);
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ERR_FAIL_COND_V(p_packet == nullptr, -1);
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ERR_FAIL_COND_V_MSG(p_channel >= peer->channelCount, -1, vformat("Unable to send packet on channel %d, max channels: %d", p_channel, (int)peer->channelCount));
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return enet_peer_send(peer, p_channel, p_packet);
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}
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void ENetPacketPeer::reset() {
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ERR_FAIL_COND_MSG(peer == nullptr, "Peer not connected");
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enet_peer_reset(peer);
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_on_disconnect();
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}
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void ENetPacketPeer::throttle_configure(int p_interval, int p_acceleration, int p_deceleration) {
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ERR_FAIL_COND_MSG(peer == nullptr, "Peer not connected");
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enet_peer_throttle_configure(peer, p_interval, p_acceleration, p_deceleration);
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}
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void ENetPacketPeer::set_timeout(int p_timeout, int p_timeout_min, int p_timeout_max) {
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ERR_FAIL_COND_MSG(peer == nullptr, "Peer not connected");
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ERR_FAIL_COND_MSG(p_timeout > p_timeout_min || p_timeout_min > p_timeout_max, "Timeout limit must be less than minimum timeout, which itself must be less then maximum timeout");
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enet_peer_timeout(peer, p_timeout, p_timeout_min, p_timeout_max);
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}
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int ENetPacketPeer::get_max_packet_size() const {
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return 1 << 24;
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}
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int ENetPacketPeer::get_available_packet_count() const {
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return packet_queue.size();
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}
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Error ENetPacketPeer::get_packet(const uint8_t **r_buffer, int &r_buffer_size) {
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ERR_FAIL_COND_V(!peer, ERR_UNCONFIGURED);
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ERR_FAIL_COND_V(!packet_queue.size(), ERR_UNAVAILABLE);
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if (last_packet) {
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enet_packet_destroy(last_packet);
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last_packet = nullptr;
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}
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last_packet = packet_queue.front()->get();
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packet_queue.pop_front();
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*r_buffer = (const uint8_t *)(last_packet->data);
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r_buffer_size = last_packet->dataLength;
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return OK;
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}
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Error ENetPacketPeer::put_packet(const uint8_t *p_buffer, int p_buffer_size) {
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ERR_FAIL_COND_V(!peer, ERR_UNCONFIGURED);
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ENetPacket *packet = enet_packet_create(p_buffer, p_buffer_size, ENET_PACKET_FLAG_RELIABLE);
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return send(0, packet) < 0 ? FAILED : OK;
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}
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IPAddress ENetPacketPeer::get_remote_address() const {
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ERR_FAIL_COND_V(!peer, IPAddress());
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IPAddress out;
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#ifdef GODOT_ENET
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out.set_ipv6((uint8_t *)&(peer->address.host));
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#else
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out.set_ipv4((uint8_t *)&(peer->address.host));
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#endif
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return out;
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}
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int ENetPacketPeer::get_remote_port() const {
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ERR_FAIL_COND_V(!peer, 0);
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return peer->address.port;
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}
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bool ENetPacketPeer::is_active() const {
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return peer != nullptr;
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}
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double ENetPacketPeer::get_statistic(PeerStatistic p_stat) {
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ERR_FAIL_COND_V(!peer, 0);
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switch (p_stat) {
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case PEER_PACKET_LOSS:
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return peer->packetLoss;
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case PEER_PACKET_LOSS_VARIANCE:
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return peer->packetLossVariance;
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case PEER_PACKET_LOSS_EPOCH:
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return peer->packetLossEpoch;
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case PEER_ROUND_TRIP_TIME:
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return peer->roundTripTime;
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case PEER_ROUND_TRIP_TIME_VARIANCE:
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return peer->roundTripTimeVariance;
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case PEER_LAST_ROUND_TRIP_TIME:
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return peer->lastRoundTripTime;
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case PEER_LAST_ROUND_TRIP_TIME_VARIANCE:
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return peer->lastRoundTripTimeVariance;
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case PEER_PACKET_THROTTLE:
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return peer->packetThrottle;
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case PEER_PACKET_THROTTLE_LIMIT:
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return peer->packetThrottleLimit;
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case PEER_PACKET_THROTTLE_COUNTER:
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return peer->packetThrottleCounter;
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case PEER_PACKET_THROTTLE_EPOCH:
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return peer->packetThrottleEpoch;
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case PEER_PACKET_THROTTLE_ACCELERATION:
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return peer->packetThrottleAcceleration;
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case PEER_PACKET_THROTTLE_DECELERATION:
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return peer->packetThrottleDeceleration;
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case PEER_PACKET_THROTTLE_INTERVAL:
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return peer->packetThrottleInterval;
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}
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ERR_FAIL_V(0);
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}
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ENetPacketPeer::PeerState ENetPacketPeer::get_state() const {
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if (!is_active()) {
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return STATE_DISCONNECTED;
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}
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return (PeerState)peer->state;
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}
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int ENetPacketPeer::get_channels() const {
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ERR_FAIL_COND_V_MSG(!peer, 0, "The ENetConnection instance isn't currently active.");
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return peer->channelCount;
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}
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void ENetPacketPeer::_on_disconnect() {
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if (peer) {
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peer->data = nullptr;
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}
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peer = nullptr;
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}
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void ENetPacketPeer::_queue_packet(ENetPacket *p_packet) {
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ERR_FAIL_COND(!peer);
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packet_queue.push_back(p_packet);
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}
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Error ENetPacketPeer::_send(int p_channel, PackedByteArray p_packet, int p_flags) {
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ERR_FAIL_COND_V_MSG(peer == nullptr, ERR_UNCONFIGURED, "Peer not connected");
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ERR_FAIL_COND_V_MSG(p_channel < 0 || p_channel > (int)peer->channelCount, ERR_INVALID_PARAMETER, "Invalid channel");
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ERR_FAIL_COND_V_MSG(p_flags & ~FLAG_ALLOWED, ERR_INVALID_PARAMETER, "Invalid flags");
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ENetPacket *packet = enet_packet_create(p_packet.ptr(), p_packet.size(), p_flags);
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return send(p_channel, packet) == 0 ? OK : FAILED;
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}
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void ENetPacketPeer::_bind_methods() {
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ClassDB::bind_method(D_METHOD("peer_disconnect", "data"), &ENetPacketPeer::peer_disconnect, DEFVAL(0));
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ClassDB::bind_method(D_METHOD("peer_disconnect_later", "data"), &ENetPacketPeer::peer_disconnect_later, DEFVAL(0));
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ClassDB::bind_method(D_METHOD("peer_disconnect_now", "data"), &ENetPacketPeer::peer_disconnect_now, DEFVAL(0));
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ClassDB::bind_method(D_METHOD("ping"), &ENetPacketPeer::ping);
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ClassDB::bind_method(D_METHOD("ping_interval", "ping_interval"), &ENetPacketPeer::ping_interval);
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ClassDB::bind_method(D_METHOD("reset"), &ENetPacketPeer::reset);
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ClassDB::bind_method(D_METHOD("send", "channel", "packet", "flags"), &ENetPacketPeer::_send);
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ClassDB::bind_method(D_METHOD("throttle_configure", "interval", "acceleration", "deceleration"), &ENetPacketPeer::throttle_configure);
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ClassDB::bind_method(D_METHOD("set_timeout", "timeout", "timeout_min", "timeout_max"), &ENetPacketPeer::set_timeout);
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ClassDB::bind_method(D_METHOD("get_statistic", "statistic"), &ENetPacketPeer::get_statistic);
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ClassDB::bind_method(D_METHOD("get_state"), &ENetPacketPeer::get_state);
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ClassDB::bind_method(D_METHOD("get_channels"), &ENetPacketPeer::get_channels);
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ClassDB::bind_method(D_METHOD("is_active"), &ENetPacketPeer::is_active);
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BIND_ENUM_CONSTANT(STATE_DISCONNECTED);
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BIND_ENUM_CONSTANT(STATE_CONNECTING);
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BIND_ENUM_CONSTANT(STATE_ACKNOWLEDGING_CONNECT);
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BIND_ENUM_CONSTANT(STATE_CONNECTION_PENDING);
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BIND_ENUM_CONSTANT(STATE_CONNECTION_SUCCEEDED);
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BIND_ENUM_CONSTANT(STATE_CONNECTED);
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BIND_ENUM_CONSTANT(STATE_DISCONNECT_LATER);
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BIND_ENUM_CONSTANT(STATE_DISCONNECTING);
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BIND_ENUM_CONSTANT(STATE_ACKNOWLEDGING_DISCONNECT);
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BIND_ENUM_CONSTANT(STATE_ZOMBIE);
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BIND_ENUM_CONSTANT(PEER_PACKET_LOSS);
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BIND_ENUM_CONSTANT(PEER_PACKET_LOSS_VARIANCE);
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BIND_ENUM_CONSTANT(PEER_PACKET_LOSS_EPOCH);
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BIND_ENUM_CONSTANT(PEER_ROUND_TRIP_TIME);
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BIND_ENUM_CONSTANT(PEER_ROUND_TRIP_TIME_VARIANCE);
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BIND_ENUM_CONSTANT(PEER_LAST_ROUND_TRIP_TIME);
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BIND_ENUM_CONSTANT(PEER_LAST_ROUND_TRIP_TIME_VARIANCE);
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BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE);
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BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_LIMIT);
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BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_COUNTER);
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BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_EPOCH);
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BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_ACCELERATION);
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BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_DECELERATION);
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BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_INTERVAL);
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BIND_CONSTANT(PACKET_LOSS_SCALE);
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BIND_CONSTANT(PACKET_THROTTLE_SCALE);
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BIND_CONSTANT(FLAG_RELIABLE);
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BIND_CONSTANT(FLAG_UNSEQUENCED);
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BIND_CONSTANT(FLAG_UNRELIABLE_FRAGMENT);
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}
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ENetPacketPeer::ENetPacketPeer(ENetPeer *p_peer) {
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peer = p_peer;
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peer->data = this;
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}
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ENetPacketPeer::~ENetPacketPeer() {
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_on_disconnect();
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if (last_packet) {
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enet_packet_destroy(last_packet);
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last_packet = nullptr;
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}
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for (List<ENetPacket *>::Element *E = packet_queue.front(); E; E = E->next()) {
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enet_packet_destroy(E->get());
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}
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packet_queue.clear();
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}
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