/**************************************************************************/ /* enet_packet_peer.cpp */ /**************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /**************************************************************************/ /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ /* "Software"), to deal in the Software without restriction, including */ /* without limitation the rights to use, copy, modify, merge, publish, */ /* distribute, sublicense, and/or sell copies of the Software, and to */ /* permit persons to whom the Software is furnished to do so, subject to */ /* the following conditions: */ /* */ /* The above copyright notice and this permission notice shall be */ /* included in all copies or substantial portions of the Software. */ /* */ /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ /**************************************************************************/ #include "enet_packet_peer.h" void ENetPacketPeer::peer_disconnect(int p_data) { ERR_FAIL_COND(!peer); enet_peer_disconnect(peer, p_data); } void ENetPacketPeer::peer_disconnect_later(int p_data) { ERR_FAIL_COND(!peer); enet_peer_disconnect_later(peer, p_data); } void ENetPacketPeer::peer_disconnect_now(int p_data) { ERR_FAIL_COND(!peer); enet_peer_disconnect_now(peer, p_data); _on_disconnect(); } void ENetPacketPeer::ping() { ERR_FAIL_COND(!peer); enet_peer_ping(peer); } void ENetPacketPeer::ping_interval(int p_interval) { ERR_FAIL_COND(!peer); enet_peer_ping_interval(peer, p_interval); } int ENetPacketPeer::send(uint8_t p_channel, ENetPacket *p_packet) { ERR_FAIL_COND_V(peer == nullptr, -1); ERR_FAIL_COND_V(p_packet == nullptr, -1); 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)); return enet_peer_send(peer, p_channel, p_packet); } void ENetPacketPeer::reset() { ERR_FAIL_COND_MSG(peer == nullptr, "Peer not connected"); enet_peer_reset(peer); _on_disconnect(); } void ENetPacketPeer::throttle_configure(int p_interval, int p_acceleration, int p_deceleration) { ERR_FAIL_COND_MSG(peer == nullptr, "Peer not connected"); enet_peer_throttle_configure(peer, p_interval, p_acceleration, p_deceleration); } void ENetPacketPeer::set_timeout(int p_timeout, int p_timeout_min, int p_timeout_max) { ERR_FAIL_COND_MSG(peer == nullptr, "Peer not connected"); 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"); enet_peer_timeout(peer, p_timeout, p_timeout_min, p_timeout_max); } int ENetPacketPeer::get_max_packet_size() const { return 1 << 24; } int ENetPacketPeer::get_available_packet_count() const { return packet_queue.size(); } Error ENetPacketPeer::get_packet(const uint8_t **r_buffer, int &r_buffer_size) { ERR_FAIL_COND_V(!peer, ERR_UNCONFIGURED); ERR_FAIL_COND_V(!packet_queue.size(), ERR_UNAVAILABLE); if (last_packet) { enet_packet_destroy(last_packet); last_packet = nullptr; } last_packet = packet_queue.front()->get(); packet_queue.pop_front(); *r_buffer = (const uint8_t *)(last_packet->data); r_buffer_size = last_packet->dataLength; return OK; } Error ENetPacketPeer::put_packet(const uint8_t *p_buffer, int p_buffer_size) { ERR_FAIL_COND_V(!peer, ERR_UNCONFIGURED); ENetPacket *packet = enet_packet_create(p_buffer, p_buffer_size, ENET_PACKET_FLAG_RELIABLE); return send(0, packet) < 0 ? FAILED : OK; } IPAddress ENetPacketPeer::get_remote_address() const { ERR_FAIL_COND_V(!peer, IPAddress()); IPAddress out; #ifdef GODOT_ENET out.set_ipv6((uint8_t *)&(peer->address.host)); #else out.set_ipv4((uint8_t *)&(peer->address.host)); #endif return out; } int ENetPacketPeer::get_remote_port() const { ERR_FAIL_COND_V(!peer, 0); return peer->address.port; } bool ENetPacketPeer::is_active() const { return peer != nullptr; } double ENetPacketPeer::get_statistic(PeerStatistic p_stat) { ERR_FAIL_COND_V(!peer, 0); switch (p_stat) { case PEER_PACKET_LOSS: return peer->packetLoss; case PEER_PACKET_LOSS_VARIANCE: return peer->packetLossVariance; case PEER_PACKET_LOSS_EPOCH: return peer->packetLossEpoch; case PEER_ROUND_TRIP_TIME: return peer->roundTripTime; case PEER_ROUND_TRIP_TIME_VARIANCE: return peer->roundTripTimeVariance; case PEER_LAST_ROUND_TRIP_TIME: return peer->lastRoundTripTime; case PEER_LAST_ROUND_TRIP_TIME_VARIANCE: return peer->lastRoundTripTimeVariance; case PEER_PACKET_THROTTLE: return peer->packetThrottle; case PEER_PACKET_THROTTLE_LIMIT: return peer->packetThrottleLimit; case PEER_PACKET_THROTTLE_COUNTER: return peer->packetThrottleCounter; case PEER_PACKET_THROTTLE_EPOCH: return peer->packetThrottleEpoch; case PEER_PACKET_THROTTLE_ACCELERATION: return peer->packetThrottleAcceleration; case PEER_PACKET_THROTTLE_DECELERATION: return peer->packetThrottleDeceleration; case PEER_PACKET_THROTTLE_INTERVAL: return peer->packetThrottleInterval; } ERR_FAIL_V(0); } ENetPacketPeer::PeerState ENetPacketPeer::get_state() const { if (!is_active()) { return STATE_DISCONNECTED; } return (PeerState)peer->state; } int ENetPacketPeer::get_channels() const { ERR_FAIL_COND_V_MSG(!peer, 0, "The ENetConnection instance isn't currently active."); return peer->channelCount; } void ENetPacketPeer::_on_disconnect() { if (peer) { peer->data = nullptr; } peer = nullptr; } void ENetPacketPeer::_queue_packet(ENetPacket *p_packet) { ERR_FAIL_COND(!peer); packet_queue.push_back(p_packet); } Error ENetPacketPeer::_send(int p_channel, PackedByteArray p_packet, int p_flags) { ERR_FAIL_COND_V_MSG(peer == nullptr, ERR_UNCONFIGURED, "Peer not connected"); ERR_FAIL_COND_V_MSG(p_channel < 0 || p_channel > (int)peer->channelCount, ERR_INVALID_PARAMETER, "Invalid channel"); ERR_FAIL_COND_V_MSG(p_flags & ~FLAG_ALLOWED, ERR_INVALID_PARAMETER, "Invalid flags"); ENetPacket *packet = enet_packet_create(p_packet.ptr(), p_packet.size(), p_flags); return send(p_channel, packet) == 0 ? OK : FAILED; } void ENetPacketPeer::_bind_methods() { ClassDB::bind_method(D_METHOD("peer_disconnect", "data"), &ENetPacketPeer::peer_disconnect, DEFVAL(0)); ClassDB::bind_method(D_METHOD("peer_disconnect_later", "data"), &ENetPacketPeer::peer_disconnect_later, DEFVAL(0)); ClassDB::bind_method(D_METHOD("peer_disconnect_now", "data"), &ENetPacketPeer::peer_disconnect_now, DEFVAL(0)); ClassDB::bind_method(D_METHOD("ping"), &ENetPacketPeer::ping); ClassDB::bind_method(D_METHOD("ping_interval", "ping_interval"), &ENetPacketPeer::ping_interval); ClassDB::bind_method(D_METHOD("reset"), &ENetPacketPeer::reset); ClassDB::bind_method(D_METHOD("send", "channel", "packet", "flags"), &ENetPacketPeer::_send); ClassDB::bind_method(D_METHOD("throttle_configure", "interval", "acceleration", "deceleration"), &ENetPacketPeer::throttle_configure); ClassDB::bind_method(D_METHOD("set_timeout", "timeout", "timeout_min", "timeout_max"), &ENetPacketPeer::set_timeout); ClassDB::bind_method(D_METHOD("get_remote_address"), &ENetPacketPeer::get_remote_address); ClassDB::bind_method(D_METHOD("get_remote_port"), &ENetPacketPeer::get_remote_port); ClassDB::bind_method(D_METHOD("get_statistic", "statistic"), &ENetPacketPeer::get_statistic); ClassDB::bind_method(D_METHOD("get_state"), &ENetPacketPeer::get_state); ClassDB::bind_method(D_METHOD("get_channels"), &ENetPacketPeer::get_channels); ClassDB::bind_method(D_METHOD("is_active"), &ENetPacketPeer::is_active); BIND_ENUM_CONSTANT(STATE_DISCONNECTED); BIND_ENUM_CONSTANT(STATE_CONNECTING); BIND_ENUM_CONSTANT(STATE_ACKNOWLEDGING_CONNECT); BIND_ENUM_CONSTANT(STATE_CONNECTION_PENDING); BIND_ENUM_CONSTANT(STATE_CONNECTION_SUCCEEDED); BIND_ENUM_CONSTANT(STATE_CONNECTED); BIND_ENUM_CONSTANT(STATE_DISCONNECT_LATER); BIND_ENUM_CONSTANT(STATE_DISCONNECTING); BIND_ENUM_CONSTANT(STATE_ACKNOWLEDGING_DISCONNECT); BIND_ENUM_CONSTANT(STATE_ZOMBIE); BIND_ENUM_CONSTANT(PEER_PACKET_LOSS); BIND_ENUM_CONSTANT(PEER_PACKET_LOSS_VARIANCE); BIND_ENUM_CONSTANT(PEER_PACKET_LOSS_EPOCH); BIND_ENUM_CONSTANT(PEER_ROUND_TRIP_TIME); BIND_ENUM_CONSTANT(PEER_ROUND_TRIP_TIME_VARIANCE); BIND_ENUM_CONSTANT(PEER_LAST_ROUND_TRIP_TIME); BIND_ENUM_CONSTANT(PEER_LAST_ROUND_TRIP_TIME_VARIANCE); BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE); BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_LIMIT); BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_COUNTER); BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_EPOCH); BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_ACCELERATION); BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_DECELERATION); BIND_ENUM_CONSTANT(PEER_PACKET_THROTTLE_INTERVAL); BIND_CONSTANT(PACKET_LOSS_SCALE); BIND_CONSTANT(PACKET_THROTTLE_SCALE); BIND_CONSTANT(FLAG_RELIABLE); BIND_CONSTANT(FLAG_UNSEQUENCED); BIND_CONSTANT(FLAG_UNRELIABLE_FRAGMENT); } ENetPacketPeer::ENetPacketPeer(ENetPeer *p_peer) { peer = p_peer; peer->data = this; } ENetPacketPeer::~ENetPacketPeer() { _on_disconnect(); if (last_packet) { enet_packet_destroy(last_packet); last_packet = nullptr; } for (List<ENetPacket *>::Element *E = packet_queue.front(); E; E = E->next()) { enet_packet_destroy(E->get()); } packet_queue.clear(); }