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Merge pull request #598 from Onran0/udp-support

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UDP support for Network and scripting
This commit is contained in:
MihailRis 2025-08-25 17:57:38 +03:00 committed by GitHub
commit e3da256c5d
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5 changed files with 635 additions and 74 deletions
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61
doc/ru/scripting/builtins/libnetwork.md
View File

@ -2,7 +2,7 @@
Библиотека для работы с сетью.
## HTTP-запросы
## HTTP-Запросы
```lua
-- Выполняет GET запрос к указанному URL.
@ -98,6 +98,65 @@ server:is_open() --> bool
server:get_port() --> int
```
## UDP-Датаграммы
```lua
network.udp_connect(
address: str,
port: int,
-- Функция, вызываемая при получении датаграммы с указанного при открытии сокета адреса и порта
datagramHandler: function(Bytearray),
-- Функция, вызываемая после открытия сокета
-- Опциональна, так как в UDP нет handshake
[опционально] openCallback: function(WriteableSocket),
) --> WriteableSocket
```
Открывает UDP-сокет с привязкой к удалённому адресу и порту
Класс WriteableSocket имеет следующие методы:
```lua
-- Отправляет датаграмму на адрес и порт, заданные при открытии сокета
socket:send(table|Bytearray|str)
-- Закрывает сокет
socket:close()
-- Проверяет открыт ли сокет
socket:is_open() --> bool
-- Возвращает адрес и порт, на которые привязан сокет
socket:get_address() --> str, int
```
```lua
network.udp_open(
port: int,
-- Функция, вызываемая при получении датаграмы
-- В параметры передаётся адрес и порт отправителя, а также сами данные
datagramHandler: function(address: str, port: int, data: Bytearray, server: DatagramServerSocket)
) --> DatagramServerSocket
```
Открывает UDP-сервер на указанном порту
Класс DatagramServerSocket имеет следующие методы:
```lua
-- Отправляет датаграмму на переданный адрес и порт
server:send(address: str, port: int, data: table|Bytearray|str)
-- Завершает принятие датаграмм
server:stop()
-- Проверяет возможность принятия датаграмм
server:is_open() --> bool
-- Возвращает порт, который слушает сервер
server:get_port() --> int
```
## Аналитика
```lua

91
res/scripts/classes.lua
View File

@ -46,18 +46,35 @@ local Socket = {__index={
get_address=function(self) return network.__get_address(self.id) end,
}}
local WriteableSocket = {__index={
send=function(self, ...) return network.__send(self.id, ...) end,
close=function(self) return network.__close(self.id) end,
is_open=function(self) return network.__is_alive(self.id) end,
get_address=function(self) return network.__get_address(self.id) end,
}}
local ServerSocket = {__index={
close=function(self) return network.__closeserver(self.id) end,
is_open=function(self) return network.__is_serveropen(self.id) end,
get_port=function(self) return network.__get_serverport(self.id) end,
}}
local DatagramServerSocket = {__index={
close=function(self) return network.__closeserver(self.id) end,
is_open=function(self) return network.__is_serveropen(self.id) end,
get_port=function(self) return network.__get_serverport(self.id) end,
send=function(self, ...) return network.__udp_server_send_to(self.id, ...) end
}}
local _tcp_server_callbacks = {}
local _tcp_client_callbacks = {}
local _udp_server_callbacks = {}
local _udp_client_datagram_callbacks = {}
local _udp_client_open_callbacks = {}
network.tcp_open = function (port, handler)
local socket = setmetatable({id=network.__open(port)}, ServerSocket)
local socket = setmetatable({id=network.__open_tcp(port)}, ServerSocket)
_tcp_server_callbacks[socket.id] = function(id)
handler(setmetatable({id=id}, Socket))
@ -67,19 +84,63 @@ end
network.tcp_connect = function(address, port, callback)
local socket = setmetatable({id=0}, Socket)
socket.id = network.__connect(address, port)
socket.id = network.__connect_tcp(address, port)
_tcp_client_callbacks[socket.id] = function() callback(socket) end
return socket
end
network.udp_open = function (port, datagramHandler)
if type(datagramHandler) ~= 'function' then
error "udp server cannot be opened without datagram handler"
end
local socket = setmetatable({id=network.__open_udp(port)}, DatagramServerSocket)
_udp_server_callbacks[socket.id] = function(address, port, data)
datagramHandler(address, port, data, socket)
end
return socket
end
network.udp_connect = function (address, port, datagramHandler, openCallback)
if type(datagramHandler) ~= 'function' then
error "udp client socket cannot be opened without datagram handler"
end
local socket = setmetatable({id=0}, WriteableSocket)
socket.id = network.__connect_udp(address, port)
_udp_client_datagram_callbacks[socket.id] = datagramHandler
_udp_client_open_callbacks[socket.id] = openCallback
return socket
end
local function clean(iterable, checkFun, ...)
local tables = { ... }
for id, _ in pairs(iterable) do
if not checkFun(id) then
for i = 1, #tables do
tables[i][id] = nil
end
end
end
end
network.__process_events = function()
local CLIENT_CONNECTED = 1
local CONNECTED_TO_SERVER = 2
local DATAGRAM = 3
local ON_SERVER = 1
local ON_CLIENT = 2
local cleaned = false
local events = network.__pull_events()
for i, event in ipairs(events) do
local etype, sid, cid = unpack(event)
local etype, sid, cid, addr, port, side, data = unpack(event)
if etype == CLIENT_CONNECTED then
local callback = _tcp_server_callbacks[sid]
@ -87,24 +148,26 @@ network.__process_events = function()
callback(cid)
end
elseif etype == CONNECTED_TO_SERVER then
local callback = _tcp_client_callbacks[cid]
local callback = _tcp_client_callbacks[cid] or _udp_client_open_callbacks[cid]
if callback then
callback()
end
elseif etype == DATAGRAM then
if side == ON_CLIENT then
_udp_client_datagram_callbacks[cid](data)
elseif side == ON_SERVER then
_udp_server_callbacks[sid](addr, port, data)
end
end
-- remove dead servers
if not cleaned then
for sid, _ in pairs(_tcp_server_callbacks) do
if not network.__is_serveropen(sid) then
_tcp_server_callbacks[sid] = nil
end
end
for cid, _ in pairs(_tcp_client_callbacks) do
if not network.__is_alive(cid) then
_tcp_client_callbacks[cid] = nil
end
end
clean(_tcp_server_callbacks, network.__is_serveropen, _tcp_server_callbacks)
clean(_tcp_client_callbacks, network.__is_alive, _tcp_client_callbacks)
clean(_udp_server_callbacks, network.__is_serveropen, _udp_server_callbacks)
clean(_udp_client_datagram_callbacks, network.__is_alive, _udp_client_open_callbacks, _udp_client_datagram_callbacks)
cleaned = true
end
end

192
src/logic/scripting/lua/libs/libnetwork.cpp
View File

@ -1,8 +1,7 @@
#include "api_lua.hpp"
#include "coders/json.hpp"
#include "engine/Engine.hpp"
#include "network/Network.hpp"
#include "coders/json.hpp"
using namespace scripting;
@ -134,17 +133,58 @@ static int l_send(lua::State* L, network::Network& network) {
return 0;
}
static int l_udp_server_send_to(lua::State* L, network::Network& network) {
u64id_t id = lua::tointeger(L, 1);
if (auto server = network.getServer(id)) {
if (server->getTransportType() != network::TransportType::UDP)
throw std::runtime_error("the server must work on UDP transport");
const std::string& addr = lua::tostring(L, 2);
const int& port = lua::tointeger(L, 3);
auto udpServer = dynamic_cast<network::UdpServer*>(server);
if (lua::istable(L, 4)) {
lua::pushvalue(L, 4);
size_t size = lua::objlen(L, 4);
util::Buffer<char> buffer(size);
for (size_t i = 0; i < size; i++) {
lua::rawgeti(L, i + 1);
buffer[i] = lua::tointeger(L, -1);
lua::pop(L);
}
lua::pop(L);
udpServer->sendTo(addr, port, buffer.data(), size);
} else if (lua::isstring(L, 4)) {
auto string = lua::tolstring(L, 4);
udpServer->sendTo(addr, port, string.data(), string.length());
} else {
auto string = lua::bytearray_as_string(L, 4);
udpServer->sendTo(addr, port, string.data(), string.length());
lua::pop(L);
}
}
return 0;
}
static int l_recv(lua::State* L, network::Network& network) {
u64id_t id = lua::tointeger(L, 1);
int length = lua::tointeger(L, 2);
auto connection = engine->getNetwork().getConnection(id);
if (connection == nullptr) {
if (connection == nullptr || connection->getTransportType() != network::TransportType::TCP) {
return 0;
}
length = glm::min(length, connection->available());
auto tcpConnection = dynamic_cast<network::TcpConnection*>(connection);
length = glm::min(length, tcpConnection->available());
util::Buffer<char> buffer(length);
int size = connection->recv(buffer.data(), length);
int size = tcpConnection->recv(buffer.data(), length);
if (size == -1) {
return 0;
}
@ -162,38 +202,123 @@ static int l_recv(lua::State* L, network::Network& network) {
static int l_available(lua::State* L, network::Network& network) {
u64id_t id = lua::tointeger(L, 1);
if (auto connection = network.getConnection(id)) {
return lua::pushinteger(L, connection->available());
return lua::pushinteger(L, dynamic_cast<network::TcpConnection*>(connection)->available());
}
return 0;
}
enum NetworkEventType {
CLIENT_CONNECTED = 1,
CONNECTED_TO_SERVER
CONNECTED_TO_SERVER,
DATAGRAM
};
struct NetworkEvent {
NetworkEventType type;
u64id_t server;
u64id_t client;
NetworkEvent(
NetworkEventType type,
u64id_t server,
u64id_t client
) {
this->type = type;
this->server = server;
this->client = client;
}
virtual ~NetworkEvent() = default;
};
static std::vector<NetworkEvent> events_queue {};
enum NetworkDatagramSide {
ON_SERVER = 1,
ON_CLIENT
};
static int l_connect(lua::State* L, network::Network& network) {
struct NetworkDatagramEvent : NetworkEvent {
NetworkDatagramSide side;
std::string addr;
int port;
const char* buffer;
size_t length;
NetworkDatagramEvent(
NetworkEventType datagram,
u64id_t sid,
u64id_t cid,
NetworkDatagramSide side,
const std::string& addr,
int port,
const char* data,
size_t length
) : NetworkEvent(DATAGRAM, sid, cid) {
this->side = side;
this->addr = addr;
this->port = port;
buffer = data;
this->length = length;
}
};
static std::vector<std::unique_ptr<NetworkEvent>> events_queue {};
static int l_connect_tcp(lua::State* L, network::Network& network) {
std::string address = lua::require_string(L, 1);
int port = lua::tointeger(L, 2);
u64id_t id = network.connect(address, port, [](u64id_t cid) {
events_queue.push_back({CONNECTED_TO_SERVER, 0, cid});
u64id_t id = network.connectTcp(address, port, [](u64id_t cid) {
events_queue.push_back(std::make_unique<NetworkEvent>(CONNECTED_TO_SERVER, 0, cid));
});
return lua::pushinteger(L, id);
}
static int l_open(lua::State* L, network::Network& network) {
static int l_open_tcp(lua::State* L, network::Network& network) {
int port = lua::tointeger(L, 1);
u64id_t id = network.openServer(port, [](u64id_t sid, u64id_t id) {
events_queue.push_back({CLIENT_CONNECTED, sid, id});
u64id_t id = network.openTcpServer(port, [](u64id_t sid, u64id_t id) {
events_queue.push_back(std::make_unique<NetworkEvent>(CLIENT_CONNECTED, sid, id));
});
return lua::pushinteger(L, id);
}
static int l_connect_udp(lua::State* L, network::Network& network) {
std::string address = lua::require_string(L, 1);
int port = lua::tointeger(L, 2);
u64id_t id = network.connectUdp(address, port, [](u64id_t cid) {
events_queue.push_back(std::make_unique<NetworkEvent>(CONNECTED_TO_SERVER, 0, cid));
}, [address, port](
u64id_t cid,
const char* buffer,
size_t length
) {
events_queue.push_back(
std::make_unique<NetworkDatagramEvent>(
DATAGRAM, 0, cid, ON_CLIENT,
address, port, buffer, length
)
);
});
return lua::pushinteger(L, id);
}
static int l_open_udp(lua::State* L, network::Network& network) {
int port = lua::tointeger(L, 1);
u64id_t id = network.openUdpServer(port, [](
u64id_t sid,
const std::string& addr,
int port,
const char* buffer,
size_t length) {
events_queue.push_back(
std::make_unique<NetworkDatagramEvent>(
DATAGRAM, sid, 0, ON_SERVER,
addr, port, buffer, length
)
);
});
return lua::pushinteger(L, id);
}
@ -204,7 +329,10 @@ static int l_is_alive(lua::State* L, network::Network& network) {
return lua::pushboolean(
L,
connection->getState() != network::ConnectionState::CLOSED ||
connection->available() > 0
(
connection->getTransportType() == network::TransportType::TCP &&
dynamic_cast<network::TcpConnection*>(connection)->available() > 0
)
);
}
return lua::pushboolean(L, false);
@ -256,17 +384,34 @@ static int l_get_total_download(lua::State* L, network::Network& network) {
static int l_pull_events(lua::State* L, network::Network& network) {
lua::createtable(L, events_queue.size(), 0);
for (size_t i = 0; i < events_queue.size(); i++) {
lua::createtable(L, 3, 0);
lua::pushinteger(L, events_queue[i].type);
for (size_t i = 0; i < events_queue.size(); i++) {
const auto* datagramEvent = dynamic_cast<NetworkDatagramEvent*>(events_queue[i].get());
lua::createtable(L, datagramEvent ? 7 : 3, 0);
lua::pushinteger(L, events_queue[i]->type);
lua::rawseti(L, 1);
lua::pushinteger(L, events_queue[i].server);
lua::pushinteger(L, events_queue[i]->server);
lua::rawseti(L, 2);
lua::pushinteger(L, events_queue[i].client);
lua::pushinteger(L, events_queue[i]->client);
lua::rawseti(L, 3);
if (datagramEvent) {
lua::pushstring(L, datagramEvent->addr);
lua::rawseti(L, 4);
lua::pushinteger(L, datagramEvent->port);
lua::rawseti(L, 5);
lua::pushinteger(L, datagramEvent->side);
lua::rawseti(L, 6);
lua::create_bytearray(L, datagramEvent->buffer, datagramEvent->length);
lua::rawseti(L, 7);
}
lua::rawseti(L, i + 1);
}
@ -298,9 +443,12 @@ const luaL_Reg networklib[] = {
{"get_total_upload", wrap<l_get_total_upload>},
{"get_total_download", wrap<l_get_total_download>},
{"__pull_events", wrap<l_pull_events>},
{"__open", wrap<l_open>},
{"__open_tcp", wrap<l_open_tcp>},
{"__open_udp", wrap<l_open_udp>},
{"__closeserver", wrap<l_closeserver>},
{"__connect", wrap<l_connect>},
{"__udp_server_send_to", wrap<l_udp_server_send_to>},
{"__connect_tcp", wrap<l_connect_tcp>},
{"__connect_udp", wrap<l_connect_udp>},
{"__close", wrap<l_close>},
{"__send", wrap<l_send>},
{"__recv", wrap<l_recv>},

270
src/network/Network.cpp
View File

@ -291,7 +291,7 @@ static std::string to_string(const sockaddr_in& addr, bool port=true) {
return "";
}
class SocketConnection : public Connection {
class SocketTcpConnection : public TcpConnection {
SOCKET descriptor;
sockaddr_in addr;
size_t totalUpload = 0;
@ -317,10 +317,10 @@ class SocketConnection : public Connection {
state = ConnectionState::CONNECTED;
}
public:
SocketConnection(SOCKET descriptor, sockaddr_in addr)
SocketTcpConnection(SOCKET descriptor, sockaddr_in addr)
: descriptor(descriptor), addr(std::move(addr)), buffer(16'384) {}
~SocketConnection() {
~SocketTcpConnection() {
if (state != ConnectionState::CLOSED) {
shutdown(descriptor, 2);
}
@ -442,7 +442,7 @@ public:
return to_string(addr, false);
}
static std::shared_ptr<SocketConnection> connect(
static std::shared_ptr<SocketTcpConnection> connect(
const std::string& address, int port, runnable callback
) {
addrinfo hints {};
@ -466,7 +466,7 @@ public:
if (descriptor == -1) {
throw std::runtime_error("Could not create socket");
}
auto socket = std::make_shared<SocketConnection>(descriptor, std::move(serverAddress));
auto socket = std::make_shared<SocketTcpConnection>(descriptor, std::move(serverAddress));
socket->connect(std::move(callback));
return socket;
}
@ -476,7 +476,7 @@ public:
}
};
class SocketTcpSServer : public TcpServer {
class SocketTcpServer : public TcpServer {
u64id_t id;
Network* network;
SOCKET descriptor;
@ -486,10 +486,10 @@ class SocketTcpSServer : public TcpServer {
std::unique_ptr<std::thread> thread = nullptr;
int port;
public:
SocketTcpSServer(u64id_t id, Network* network, SOCKET descriptor, int port)
SocketTcpServer(u64id_t id, Network* network, SOCKET descriptor, int port)
: id(id), network(network), descriptor(descriptor), port(port) {}
~SocketTcpSServer() {
~SocketTcpServer() {
closeSocket();
}
@ -510,7 +510,7 @@ public:
break;
}
logger.info() << "client connected: " << to_string(address);
auto socket = std::make_shared<SocketConnection>(
auto socket = std::make_shared<SocketTcpConnection>(
clientDescriptor, address
);
socket->startClient();
@ -558,7 +558,7 @@ public:
return port;
}
static std::shared_ptr<SocketTcpSServer> openServer(
static std::shared_ptr<SocketTcpServer> openServer(
u64id_t id, Network* network, int port, ConnectCallback handler
) {
SOCKET descriptor = socket(
@ -586,7 +586,222 @@ public:
}
logger.info() << "opened server at port " << port;
auto server =
std::make_shared<SocketTcpSServer>(id, network, descriptor, port);
std::make_shared<SocketTcpServer>(id, network, descriptor, port);
server->startListen(std::move(handler));
return server;
}
};
class SocketUdpConnection : public UdpConnection {
u64id_t id;
SOCKET descriptor;
sockaddr_in addr{};
bool open = true;
std::unique_ptr<std::thread> thread;
ClientDatagramCallback callback;
size_t totalUpload = 0;
size_t totalDownload = 0;
ConnectionState state = ConnectionState::INITIAL;
public:
SocketUdpConnection(u64id_t id, SOCKET descriptor, sockaddr_in addr)
: id(id), descriptor(descriptor), addr(std::move(addr)) {}
~SocketUdpConnection() override {
SocketUdpConnection::close();
}
static std::shared_ptr<SocketUdpConnection> connect(
u64id_t id,
const std::string& address,
int port,
ClientDatagramCallback handler,
runnable callback
) {
SOCKET descriptor = socket(AF_INET, SOCK_DGRAM, 0);
if (descriptor == -1) {
throw std::runtime_error("could not create UDP socket");
}
sockaddr_in serverAddr{};
serverAddr.sin_family = AF_INET;
if (inet_pton(AF_INET, address.c_str(), &serverAddr.sin_addr) <= 0) {
closesocket(descriptor);
throw std::runtime_error("invalid UDP address: " + address);
}
serverAddr.sin_port = htons(port);
if (::connect(descriptor, (sockaddr*)&serverAddr, sizeof(serverAddr)) < 0) {
auto err = handle_socket_error("UDP connect failed");
closesocket(descriptor);
throw err;
}
auto socket = std::make_shared<SocketUdpConnection>(id, descriptor, serverAddr);
socket->connect(std::move(handler));
callback();
return socket;
}
void connect(ClientDatagramCallback handler) override {
callback = std::move(handler);
state = ConnectionState::CONNECTED;
thread = std::make_unique<std::thread>([this]() {
util::Buffer<char> buffer(16'384);
while (open) {
int size = recv(descriptor, buffer.data(), buffer.size(), 0);
if (size <= 0) {
if (!open) break;
closesocket(descriptor);
state = ConnectionState::CLOSED;
break;
}
totalDownload += size;
if (callback) {
callback(id, buffer.data(), size);
}
}
});
}
int send(const char* buffer, size_t length) override {
int len = sendto(descriptor, buffer, length, 0,
(sockaddr*)&addr, sizeof(addr));
if (len < 0) {
closesocket(descriptor);
state = ConnectionState::CLOSED;
} else totalUpload += len;
return len;
}
void close(bool discardAll=false) override {
if (!open) return;
open = false;
if (state != ConnectionState::CLOSED) {
shutdown(descriptor, 2);
closesocket(descriptor);
}
if (thread) {
thread->join();
thread.reset();
}
state = ConnectionState::CLOSED;
}
size_t pullUpload() override {
size_t s = totalUpload;
totalUpload = 0;
return s;
}
size_t pullDownload() override {
size_t s = totalDownload;
totalDownload = 0;
return s;
}
[[nodiscard]] int getPort() const override {
return ntohs(addr.sin_port);
}
[[nodiscard]] std::string getAddress() const override {
return to_string(addr, false);
}
[[nodiscard]] ConnectionState getState() const override {
return state;
}
};
class SocketUdpServer : public UdpServer {
u64id_t id;
Network* network;
SOCKET descriptor;
bool open = true;
std::unique_ptr<std::thread> thread = nullptr;
int port;
ServerDatagramCallback callback;
public:
SocketUdpServer(u64id_t id, Network* network, SOCKET descriptor, int port)
: id(id), network(network), descriptor(descriptor), port(port) {}
~SocketUdpServer() override {
SocketUdpServer::close();
}
void startListen(ServerDatagramCallback handler) {
callback = std::move(handler);
thread = std::make_unique<std::thread>([this]() {
util::Buffer<char> buffer(16384);
sockaddr_in clientAddr{};
socklen_t addrlen = sizeof(clientAddr);
while (open) {
int size = recvfrom(descriptor, buffer.data(), buffer.size(), 0,
reinterpret_cast<sockaddr*>(&clientAddr), &addrlen);
if (size <= 0) {
if (!open) break;
continue;
}
std::string addrStr = to_string(clientAddr, false);
int port = ntohs(clientAddr.sin_port);
callback(id, addrStr, port, buffer.data(), size);
}
});
}
void sendTo(const std::string& addr, int port, const char* buffer, size_t length) override {
sockaddr_in client{};
client.sin_family = AF_INET;
inet_pton(AF_INET, addr.c_str(), &client.sin_addr);
client.sin_port = htons(port);
sendto(descriptor, buffer, length, 0,
reinterpret_cast<sockaddr*>(&client), sizeof(client));
}
void close() override {
if (!open) return;
open = false;
shutdown(descriptor, 2);
closesocket(descriptor);
if (thread) {
thread->join();
thread = nullptr;
}
}
bool isOpen() override { return open; }
int getPort() const override { return port; }
static std::shared_ptr<SocketUdpServer> openServer(
u64id_t id, Network* network, int port, const ServerDatagramCallback& handler
) {
SOCKET descriptor = socket(AF_INET, SOCK_DGRAM, 0);
if (descriptor == -1) throw std::runtime_error("Could not create UDP socket");
sockaddr_in address{};
address.sin_family = AF_INET;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_port = htons(port);
if (bind(descriptor, (sockaddr*)&address, sizeof(address)) < 0) {
closesocket(descriptor);
throw std::runtime_error("Could not bind UDP port " + std::to_string(port));
}
auto server = std::make_shared<SocketUdpServer>(id, network, descriptor, port);
server->startListen(std::move(handler));
return server;
}
@ -627,7 +842,7 @@ Connection* Network::getConnection(u64id_t id) {
return found->second.get();
}
TcpServer* Network::getServer(u64id_t id) const {
Server* Network::getServer(u64id_t id) const {
const auto& found = servers.find(id);
if (found == servers.end()) {
return nullptr;
@ -635,20 +850,38 @@ TcpServer* Network::getServer(u64id_t id) const {
return found->second.get();
}
u64id_t Network::connect(const std::string& address, int port, consumer<u64id_t> callback) {
u64id_t Network::connectTcp(const std::string& address, int port, consumer<u64id_t> callback) {
std::lock_guard lock(connectionsMutex);
u64id_t id = nextConnection++;
auto socket = SocketConnection::connect(address, port, [id, callback]() {
auto socket = SocketTcpConnection::connect(address, port, [id, callback]() {
callback(id);
});
connections[id] = std::move(socket);
return id;
}
u64id_t Network::openServer(int port, ConnectCallback handler) {
u64id_t Network::openTcpServer(int port, ConnectCallback handler) {
u64id_t id = nextServer++;
auto server = SocketTcpSServer::openServer(id, this, port, handler);
auto server = SocketTcpServer::openServer(id, this, port, handler);
servers[id] = std::move(server);
return id;
}
u64id_t Network::connectUdp(const std::string& address, int port, const consumer<u64id_t>& callback, ClientDatagramCallback handler) {
std::lock_guard lock(connectionsMutex);
u64id_t id = nextConnection++;
auto socket = SocketUdpConnection::connect(id, address, port, std::move(handler), [id, callback]() {
callback(id);
});
connections[id] = std::move(socket);
return id;
}
u64id_t Network::openUdpServer(int port, const ServerDatagramCallback& handler) {
u64id_t id = nextServer++;
auto server = SocketUdpServer::openServer(id, this, port, handler);
servers[id] = std::move(server);
return id;
}
@ -679,7 +912,10 @@ void Network::update() {
auto socket = socketiter->second.get();
totalDownload += socket->pullDownload();
totalUpload += socket->pullUpload();
if (socket->available() == 0 &&
if (
( socket->getTransportType() == TransportType::UDP ||
dynamic_cast<TcpConnection*>(socket)->available() == 0
) &&
socket->getState() == ConnectionState::CLOSED) {
socketiter = connections.erase(socketiter);
continue;

95
src/network/Network.hpp
View File

@ -13,6 +13,9 @@ namespace network {
using OnResponse = std::function<void(std::vector<char>)>;
using OnReject = std::function<void(int)>;
using ConnectCallback = std::function<void(u64id_t, u64id_t)>;
using ServerDatagramCallback = std::function<void(u64id_t sid, const std::string& addr, int port, const char* buffer, size_t length)>;
using ClientDatagramCallback = std::function<void(u64id_t cid, const char* buffer, size_t length)>;
class Requests {
public:
@ -33,8 +36,8 @@ namespace network {
long maxSize=0
) = 0;
virtual size_t getTotalUpload() const = 0;
virtual size_t getTotalDownload() const = 0;
[[nodiscard]] virtual size_t getTotalUpload() const = 0;
[[nodiscard]] virtual size_t getTotalDownload() const = 0;
virtual void update() = 0;
};
@ -43,32 +46,82 @@ namespace network {
INITIAL, CONNECTING, CONNECTED, CLOSED
};
enum class TransportType {
TCP, UDP
};
class Connection {
public:
virtual ~Connection() {}
virtual ~Connection() = default;
virtual void connect(runnable callback) = 0;
virtual int recv(char* buffer, size_t length) = 0;
virtual int send(const char* buffer, size_t length) = 0;
virtual void close(bool discardAll=false) = 0;
virtual int available() = 0;
virtual int send(const char* buffer, size_t length) = 0;
virtual size_t pullUpload() = 0;
virtual size_t pullDownload() = 0;
virtual int getPort() const = 0;
virtual std::string getAddress() const = 0;
[[nodiscard]] virtual int getPort() const = 0;
[[nodiscard]] virtual std::string getAddress() const = 0;
virtual ConnectionState getState() const = 0;
[[nodiscard]] virtual ConnectionState getState() const = 0;
[[nodiscard]] virtual TransportType getTransportType() const noexcept = 0;
};
class TcpServer {
class TcpConnection : public Connection {
public:
virtual ~TcpServer() {}
virtual void startListen(ConnectCallback handler) = 0;
~TcpConnection() override = default;
virtual void connect(runnable callback) = 0;
virtual int recv(char* buffer, size_t length) = 0;
virtual int available() = 0;
[[nodiscard]] TransportType getTransportType() const noexcept override {
return TransportType::TCP;
}
};
class UdpConnection : public Connection {
public:
~UdpConnection() override = default;
virtual void connect(ClientDatagramCallback handler) = 0;
[[nodiscard]] TransportType getTransportType() const noexcept override {
return TransportType::UDP;
}
};
class Server {
public:
virtual ~Server() = default;
virtual void close() = 0;
virtual bool isOpen() = 0;
virtual int getPort() const = 0;
[[nodiscard]] virtual TransportType getTransportType() const noexcept = 0;
[[nodiscard]] virtual int getPort() const = 0;
};
class TcpServer : public Server {
public:
~TcpServer() override {}
virtual void startListen(ConnectCallback handler) = 0;
[[nodiscard]] TransportType getTransportType() const noexcept override {
return TransportType::TCP;
}
};
class UdpServer : public Server {
public:
~UdpServer() override {}
virtual void startListen(ServerDatagramCallback handler) = 0;
virtual void sendTo(const std::string& addr, int port, const char* buffer, size_t length) = 0;
[[nodiscard]] TransportType getTransportType() const noexcept override {
return TransportType::UDP;
}
};
class Network {
@ -78,7 +131,7 @@ namespace network {
std::mutex connectionsMutex {};
u64id_t nextConnection = 1;
std::unordered_map<u64id_t, std::shared_ptr<TcpServer>> servers;
std::unordered_map<u64id_t, std::shared_ptr<Server>> servers;
u64id_t nextServer = 1;
size_t totalDownload = 0;
@ -103,16 +156,18 @@ namespace network {
);
[[nodiscard]] Connection* getConnection(u64id_t id);
[[nodiscard]] TcpServer* getServer(u64id_t id) const;
[[nodiscard]] Server* getServer(u64id_t id) const;
u64id_t connect(const std::string& address, int port, consumer<u64id_t> callback);
u64id_t connectTcp(const std::string& address, int port, consumer<u64id_t> callback);
u64id_t connectUdp(const std::string& address, int port, const consumer<u64id_t>& callback, ClientDatagramCallback handler);
u64id_t openServer(int port, ConnectCallback handler);
u64id_t openTcpServer(int port, ConnectCallback handler);
u64id_t openUdpServer(int port, const ServerDatagramCallback& handler);
u64id_t addConnection(const std::shared_ptr<Connection>& connection);
size_t getTotalUpload() const;
size_t getTotalDownload() const;
[[nodiscard]] size_t getTotalUpload() const;
[[nodiscard]] size_t getTotalDownload() const;
void update();