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Network: Threads for Room and RoomMember

This commit is contained in:
B3n30 2017-07-08 15:24:47 +02:00
parent 5137a198f9
commit 589dc083a5
4 changed files with 119 additions and 13 deletions

View file

@ -2,6 +2,8 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <atomic>
#include <thread>
#include "enet/enet.h"
#include "network/room.h"
@ -16,8 +18,38 @@ public:
std::atomic<State> state{State::Closed}; ///< Current state of the room.
RoomInformation room_information; ///< Information about this room.
/// Thread that receives and dispatches network packets
std::unique_ptr<std::thread> room_thread;
/// Thread function that will receive and dispatch messages until the room is destroyed.
void ServerLoop();
void StartLoop();
};
// RoomImpl
void Room::RoomImpl::ServerLoop() {
while (state != State::Closed) {
ENetEvent event;
if (enet_host_service(server, &event, 1000) > 0) {
switch (event.type) {
case ENET_EVENT_TYPE_RECEIVE:
// TODO(B3N30): Select the type of message and handle it
enet_packet_destroy(event.packet);
break;
case ENET_EVENT_TYPE_DISCONNECT:
// TODO(B3N30): Handle the disconnect from a client
break;
}
}
}
}
void Room::RoomImpl::StartLoop() {
room_thread = std::make_unique<std::thread>(&Room::RoomImpl::ServerLoop, this);
}
// Room
Room::Room() : room_impl{std::make_unique<RoomImpl>()} {}
Room::~Room() = default;
@ -34,8 +66,7 @@ void Room::Create(const std::string& name, const std::string& server_address, u1
room_impl->room_information.name = name;
room_impl->room_information.member_slots = MaxConcurrentConnections;
// TODO(B3N30): Start the receiving thread
room_impl->StartLoop();
}
Room::State Room::GetState() const {
@ -48,7 +79,8 @@ const RoomInformation& Room::GetRoomInformation() const {
void Room::Destroy() {
room_impl->state = State::Closed;
// TODO(B3n30): Join the receiving thread
room_impl->room_thread->join();
room_impl->room_thread.reset();
if (room_impl->server) {
enet_host_destroy(room_impl->server);

View file

@ -4,7 +4,6 @@
#pragma once
#include <atomic>
#include <memory>
#include <string>
#include "common/common_types.h"
@ -19,6 +18,19 @@ struct RoomInformation {
u32 member_slots; ///< Maximum number of members in this room
};
// The different types of messages that can be sent. The first byte of each packet defines the type
typedef uint8_t MessageID;
enum RoomMessageTypes {
IdJoinRequest = 1,
IdJoinSuccess,
IdRoomInformation,
IdSetGameName,
IdWifiPacket,
IdChatMessage,
IdNameCollision,
IdMacCollision
};
/// This is what a server [person creating a server] would use.
class Room final {
public:

View file

@ -2,6 +2,9 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <atomic>
#include <mutex>
#include <thread>
#include "common/assert.h"
#include "enet/enet.h"
#include "network/room_member.h"
@ -16,10 +19,65 @@ public:
ENetPeer* server = nullptr; ///< The server peer the client is connected to
std::atomic<State> state{State::Idle}; ///< Current state of the RoomMember.
void SetState(const State new_state);
bool IsConnected() const;
std::string nickname; ///< The nickname of this member.
std::mutex network_mutex; ///< Mutex that controls access to the `client` variable.
/// Thread that receives and dispatches network packets
std::unique_ptr<std::thread> receive_thread;
void ReceiveLoop();
void StartLoop();
};
// RoomMemberImpl
void RoomMember::RoomMemberImpl::SetState(const State new_state) {
state = new_state;
// TODO(B3N30): Invoke the callback functions
}
bool RoomMember::RoomMemberImpl::IsConnected() const {
return state == State::Joining || state == State::Joined;
}
void RoomMember::RoomMemberImpl::ReceiveLoop() {
// Receive packets while the connection is open
while (IsConnected()) {
std::lock_guard<std::mutex> lock(network_mutex);
ENetEvent event;
if (enet_host_service(client, &event, 1000) > 0) {
if (event.type == ENET_EVENT_TYPE_RECEIVE) {
switch (event.packet->data[0]) {
// TODO(B3N30): Handle the other message types
case IdNameCollision:
SetState(State::NameCollision);
enet_packet_destroy(event.packet);
enet_peer_disconnect(server, 0);
enet_peer_reset(server);
return;
break;
case IdMacCollision:
SetState(State::MacCollision);
enet_packet_destroy(event.packet);
enet_peer_disconnect(server, 0);
enet_peer_reset(server);
return;
break;
default:
break;
}
enet_packet_destroy(event.packet);
}
}
}
};
void RoomMember::RoomMemberImpl::StartLoop() {
receive_thread = std::make_unique<std::thread>(&RoomMember::RoomMemberImpl::ReceiveLoop, this);
}
// RoomMember
RoomMember::RoomMember() : room_member_impl{std::make_unique<RoomMemberImpl>()} {
room_member_impl->client = enet_host_create(nullptr, 1, NumChannels, 0, 0);
ASSERT_MSG(room_member_impl->client != nullptr, "Could not create client");
@ -44,7 +102,7 @@ void RoomMember::Join(const std::string& nick, const char* server_addr, u16 serv
enet_host_connect(room_member_impl->client, &address, NumChannels, 0);
if (!room_member_impl->server) {
room_member_impl->state = State::Error;
room_member_impl->SetState(State::Error);
return;
}
@ -52,22 +110,27 @@ void RoomMember::Join(const std::string& nick, const char* server_addr, u16 serv
int net = enet_host_service(room_member_impl->client, &event, ConnectionTimeoutMs);
if (net > 0 && event.type == ENET_EVENT_TYPE_CONNECT) {
room_member_impl->nickname = nick;
room_member_impl->state = State::Joining;
room_member_impl->SetState(State::Joining);
room_member_impl->StartLoop();
// TODO(B3N30): Send a join request with the nickname to the server
// TODO(B3N30): Start the receive thread
} else {
room_member_impl->state = State::CouldNotConnect;
room_member_impl->SetState(State::CouldNotConnect);
}
}
bool RoomMember::IsConnected() const {
return room_member_impl->state == State::Joining || room_member_impl->state == State::Joined;
return room_member_impl->IsConnected();
}
void RoomMember::Leave() {
enet_peer_disconnect(room_member_impl->server, 0);
room_member_impl->state = State::Idle;
// TODO(B3N30): Close the receive thread
ASSERT_MSG(room_member_impl->receive_thread != nullptr, "Must be in a room to leave it.");
{
std::lock_guard<std::mutex> lock(room_member_impl->network_mutex);
enet_peer_disconnect(room_member_impl->server, 0);
room_member_impl->SetState(State::Idle);
}
room_member_impl->receive_thread->join();
room_member_impl->receive_thread.reset();
enet_peer_reset(room_member_impl->server);
}

View file

@ -4,7 +4,6 @@
#pragma once
#include <atomic>
#include <memory>
#include <string>
#include "common/common_types.h"