diff options
Diffstat (limited to 'modules/enet/enet_packet_peer.cpp')
| -rw-r--r-- | modules/enet/enet_packet_peer.cpp | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/modules/enet/enet_packet_peer.cpp b/modules/enet/enet_packet_peer.cpp new file mode 100644 index 0000000000..d7d2ec9ebe --- /dev/null +++ b/modules/enet/enet_packet_peer.cpp @@ -0,0 +1,263 @@ +/*************************************************************************/ +/* enet_packet_peer.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* 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_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(); +} |