2017-08-25 15:53:56 +02:00
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/*
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Minetest
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Copyright (C) 2013-2017 celeron55, Perttu Ahola <celeron55@gmail.com>
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Copyright (C) 2017 celeron55, Loic Blot <loic.blot@unix-experience.fr>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#pragma once
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#include <cassert>
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2017-11-08 23:56:20 +01:00
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#include "threading/thread.h"
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2017-08-25 15:53:56 +02:00
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#include "connection.h"
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namespace con
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{
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class Connection;
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class ConnectionSendThread : public Thread
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{
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public:
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friend class UDPPeer;
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ConnectionSendThread(unsigned int max_packet_size, float timeout);
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void *run();
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void Trigger();
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void setParent(Connection *parent)
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{
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assert(parent != NULL); // Pre-condition
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m_connection = parent;
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}
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void setPeerTimeout(float peer_timeout) { m_timeout = peer_timeout; }
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private:
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void runTimeouts(float dtime);
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void rawSend(const BufferedPacket &packet);
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2019-04-14 22:56:38 +02:00
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bool rawSendAsPacket(session_t peer_id, u8 channelnum,
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const SharedBuffer<u8> &data, bool reliable);
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2017-08-25 15:53:56 +02:00
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void processReliableCommand(ConnectionCommand &c);
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void processNonReliableCommand(ConnectionCommand &c);
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void serve(Address bind_address);
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void connect(Address address);
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void disconnect();
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2017-09-27 19:47:36 +02:00
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void disconnect_peer(session_t peer_id);
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2019-04-14 22:56:38 +02:00
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void send(session_t peer_id, u8 channelnum, const SharedBuffer<u8> &data);
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2017-08-25 15:53:56 +02:00
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void sendReliable(ConnectionCommand &c);
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2019-04-14 22:56:38 +02:00
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void sendToAll(u8 channelnum, const SharedBuffer<u8> &data);
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2017-08-25 15:53:56 +02:00
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void sendToAllReliable(ConnectionCommand &c);
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void sendPackets(float dtime);
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2019-04-14 22:56:38 +02:00
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void sendAsPacket(session_t peer_id, u8 channelnum, const SharedBuffer<u8> &data,
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2017-08-25 15:53:56 +02:00
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bool ack = false);
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void sendAsPacketReliable(BufferedPacket &p, Channel *channel);
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bool packetsQueued();
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Connection *m_connection = nullptr;
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unsigned int m_max_packet_size;
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float m_timeout;
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std::queue<OutgoingPacket> m_outgoing_queue;
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Semaphore m_send_sleep_semaphore;
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unsigned int m_iteration_packets_avaialble;
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unsigned int m_max_commands_per_iteration = 1;
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unsigned int m_max_data_packets_per_iteration;
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unsigned int m_max_packets_requeued = 256;
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};
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class ConnectionReceiveThread : public Thread
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{
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public:
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ConnectionReceiveThread(unsigned int max_packet_size);
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void *run();
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void setParent(Connection *parent)
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{
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assert(parent); // Pre-condition
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m_connection = parent;
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}
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private:
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void receive();
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// Returns next data from a buffer if possible
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// If found, returns true; if not, false.
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// If found, sets peer_id and dst
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2017-09-27 19:47:36 +02:00
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bool getFromBuffers(session_t &peer_id, SharedBuffer<u8> &dst);
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2017-08-25 15:53:56 +02:00
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2017-09-27 22:41:50 +02:00
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bool checkIncomingBuffers(
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Channel *channel, session_t &peer_id, SharedBuffer<u8> &dst);
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2017-08-25 15:53:56 +02:00
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/*
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Processes a packet with the basic header stripped out.
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Parameters:
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packetdata: Data in packet (with no base headers)
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peer_id: peer id of the sender of the packet in question
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channelnum: channel on which the packet was sent
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reliable: true if recursing into a reliable packet
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*/
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2019-04-14 22:56:38 +02:00
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SharedBuffer<u8> processPacket(Channel *channel,
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const SharedBuffer<u8> &packetdata, session_t peer_id,
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u8 channelnum, bool reliable);
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2017-08-25 15:53:56 +02:00
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SharedBuffer<u8> handlePacketType_Control(Channel *channel,
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2019-04-14 22:56:38 +02:00
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const SharedBuffer<u8> &packetdata, Peer *peer, u8 channelnum,
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2017-08-25 15:53:56 +02:00
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bool reliable);
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SharedBuffer<u8> handlePacketType_Original(Channel *channel,
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2019-04-14 22:56:38 +02:00
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const SharedBuffer<u8> &packetdata, Peer *peer, u8 channelnum,
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2017-08-25 15:53:56 +02:00
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bool reliable);
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SharedBuffer<u8> handlePacketType_Split(Channel *channel,
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2019-04-14 22:56:38 +02:00
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const SharedBuffer<u8> &packetdata, Peer *peer, u8 channelnum,
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2017-08-25 15:53:56 +02:00
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bool reliable);
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SharedBuffer<u8> handlePacketType_Reliable(Channel *channel,
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2019-04-14 22:56:38 +02:00
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const SharedBuffer<u8> &packetdata, Peer *peer, u8 channelnum,
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2017-08-25 15:53:56 +02:00
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bool reliable);
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struct PacketTypeHandler
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{
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SharedBuffer<u8> (ConnectionReceiveThread::*handler)(Channel *channel,
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2019-04-14 22:56:38 +02:00
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const SharedBuffer<u8> &packet, Peer *peer, u8 channelnum,
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2017-08-25 15:53:56 +02:00
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bool reliable);
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};
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static const PacketTypeHandler packetTypeRouter[PACKET_TYPE_MAX];
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Connection *m_connection = nullptr;
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};
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}
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