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#ifndef SOCKET_HANDLER_INCLUDED
# define SOCKET_HANDLER_INCLUDED
typedef int socket_t;
class Poller;
/**
* An interface, with a series of callbacks that should be implemented in
* subclasses that deal with a socket. These callbacks are called on various events
* (read/write/timeout, etc) when they are notified to a poller
* (select/poll/epoll etc)
*/
class SocketHandler
{
public:
explicit SocketHandler():
poller(nullptr)
{}
/**
* Set the pointer to the given Poller, to communicate with it.
*/
void set_poller(Poller* poller)
{
this->poller = poller;
};
/**
* Happens when the socket is ready to be received from.
*/
virtual void on_recv() = 0;
/**
* Happens when the socket is ready to be written to.
*/
virtual void on_send() = 0;
/**
* Returns the socket that should be handled by the poller.
*/
virtual socket_t get_socket() const = 0;
/**
* Close the connection.
*/
virtual void close() = 0;
protected:
/**
* A pointer to the poller that manages us, because we need to communicate
* with it, sometimes (for example to tell it that he now needs to watch
* write events for us). Do not ever try to delete it.
*
* And a raw pointer because we are not owning it, it is owning us
* (actually it is sharing our ownership with a Bridge).
*/
Poller* poller;
private:
SocketHandler(const SocketHandler&) = delete;
SocketHandler(SocketHandler&&) = delete;
SocketHandler& operator=(const SocketHandler&) = delete;
SocketHandler& operator=(SocketHandler&&) = delete;
};
#endif // SOCKET_HANDLER_INCLUDED
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