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#pragma once
#include <network/socket_handler.hpp>
#include <network/poller.hpp>
#include <logger/logger.hpp>
#include <string>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/ip.h>
#include <cstring>
#include <cassert>
template <typename RemoteSocketType>
class TcpSocketServer: public SocketHandler
{
public:
TcpSocketServer(std::shared_ptr<Poller> poller, const uint16_t port):
SocketHandler(poller, -1)
{
if ((this->socket = ::socket(AF_INET6, SOCK_STREAM, 0)) == -1)
throw std::runtime_error(std::string{"Could not create socket: "} + std::strerror(errno));
int opt = 1;
if (::setsockopt(this->socket, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) == -1)
throw std::runtime_error(std::string{"Failed to set socket option: "} + std::strerror(errno));
struct sockaddr_in6 addr{};
addr.sin6_family = AF_INET6;
addr.sin6_port = htons(port);
addr.sin6_addr = IN6ADDR_ANY_INIT;
if ((::bind(this->socket, (const struct sockaddr*)&addr, sizeof(addr))) == -1)
{ // If we can’t listen on this port, we just give up, but this is not fatal.
log_warning("Failed to bind on port ", std::to_string(port), ": ", std::strerror(errno));
return;
}
if ((::listen(this->socket, 10)) == -1)
throw std::runtime_error("listen() failed");
this->accept();
}
~TcpSocketServer() = default;
void on_recv() override
{
// Accept a RemoteSocketType
int socket = ::accept(this->socket, nullptr, nullptr);
auto client = std::make_unique<RemoteSocketType>(poller, socket, *this);
this->poller->add_socket_handler(client.get());
this->sockets.push_back(std::move(client));
}
protected:
std::vector<std::unique_ptr<RemoteSocketType>> sockets;
private:
void accept()
{
this->poller->add_socket_handler(this);
}
void on_send() override
{
assert(false);
}
void connect() override
{
assert(false);
}
bool is_connected() const override
{
return true;
}
bool is_connecting() const override
{
return false;
}
};
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