142 lines
3.3 KiB
C++
142 lines
3.3 KiB
C++
#include "TCPListener.h"
|
|
#include "NetworkManager.h"
|
|
|
|
#include <event2/event.h>
|
|
#include <event2/listener.h>
|
|
|
|
namespace Feather::Network
|
|
{
|
|
class TCPSocket
|
|
{
|
|
public:
|
|
TCPSocket()
|
|
{
|
|
m_socket = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
|
|
|
|
// Can't create IPv6 socket? Create an IPv4 one.
|
|
if (!(m_ipv6 = IsValid()))
|
|
m_socket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
|
|
}
|
|
|
|
~TCPSocket()
|
|
{
|
|
Close();
|
|
}
|
|
|
|
bool IsIPV6() const { return m_ipv6; }
|
|
|
|
bool MarkReusable()
|
|
{
|
|
return evutil_make_listen_socket_reuseable(m_socket) == 0;
|
|
}
|
|
|
|
bool MarkDualBind()
|
|
{
|
|
constexpr uint32_t zero = 0;
|
|
return setsockopt(m_socket, IPPROTO_IPV6, IPV6_V6ONLY,
|
|
reinterpret_cast<const char*>(&zero),
|
|
sizeof(zero)) == 0;
|
|
}
|
|
|
|
bool Bind(uint16_t port)
|
|
{
|
|
sockaddr_in6 name_ipv6 = {};
|
|
name_ipv6.sin6_family = AF_INET6;
|
|
name_ipv6.sin6_port = ntohs(port);
|
|
|
|
sockaddr_in name_ipv4 = {};
|
|
name_ipv4.sin_family = AF_INET;
|
|
name_ipv4.sin_port = ntohs(port);
|
|
|
|
return m_ipv6
|
|
? BindGeneric(name_ipv6)
|
|
: BindGeneric(name_ipv4);
|
|
}
|
|
|
|
bool MarkNonBlocking()
|
|
{
|
|
return evutil_make_socket_nonblocking(m_socket) == 0;
|
|
}
|
|
|
|
bool Close()
|
|
{
|
|
if (!IsValid())
|
|
return true;
|
|
|
|
return evutil_closesocket(m_socket) == 0;
|
|
}
|
|
|
|
template <typename T>
|
|
evconnlistener* Listen(evconnlistener_cb callback, T* self)
|
|
{
|
|
if (listen(m_socket, SOMAXCONN) != 0)
|
|
return nullptr;
|
|
|
|
return evconnlistener_new(
|
|
NetworkManager::Instance().GetEventBase(),
|
|
callback, reinterpret_cast<void*>(self),
|
|
LEV_OPT_CLOSE_ON_FREE | LEV_OPT_REUSEABLE,
|
|
0,
|
|
m_socket);
|
|
}
|
|
|
|
bool IsValid() const { return m_socket != EVUTIL_INVALID_SOCKET; }
|
|
|
|
private:
|
|
|
|
template <typename T>
|
|
bool BindGeneric(const T& name)
|
|
{
|
|
return bind(m_socket, reinterpret_cast<const sockaddr*>(&name), sizeof(name)) == 0;
|
|
}
|
|
|
|
evutil_socket_t m_socket;
|
|
bool m_ipv6;
|
|
};
|
|
|
|
namespace
|
|
{
|
|
void TCPListenerCallback(evconnlistener* evListener, evutil_socket_t socket, sockaddr* addr, int len, void* self)
|
|
{
|
|
TCPListener* listener = static_cast<TCPListener*>(self);
|
|
|
|
listener->Accept();
|
|
}
|
|
}
|
|
|
|
TCPListener::TCPListener(uint16_t port)
|
|
{
|
|
// Setup the listen socket.
|
|
auto socket = std::make_unique<TCPSocket>();
|
|
|
|
if (!socket->IsValid())
|
|
return;
|
|
|
|
if (!socket->MarkReusable())
|
|
return;
|
|
|
|
if (socket->IsIPV6() && !socket->MarkDualBind())
|
|
return;
|
|
|
|
if (!socket->Bind(port))
|
|
return;
|
|
|
|
if (!socket->MarkNonBlocking())
|
|
return;
|
|
|
|
if (!socket->Listen(TCPListenerCallback, this))
|
|
return;
|
|
|
|
m_socket = std::move(socket);
|
|
}
|
|
|
|
TCPListener::~TCPListener()
|
|
{
|
|
|
|
}
|
|
|
|
void TCPListener::Accept()
|
|
{
|
|
printf("Frog");
|
|
}
|
|
} |