virtualx-engine/core/io/stream_peer_tcp.h

/*************************************************************************/
/*  stream_peer_tcp.h                                                    */
/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
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#ifndef STREAM_PEER_TCP_H
#define STREAM_PEER_TCP_H

#include "core/io/ip.h"
#include "core/io/ip_address.h"
#include "core/io/net_socket.h"
#include "core/io/stream_peer.h"

class StreamPeerTCP : public StreamPeer {
	GDCLASS(StreamPeerTCP, StreamPeer);
	OBJ_CATEGORY("Networking");

public:
	enum Status {
		STATUS_NONE,
		STATUS_CONNECTING,
		STATUS_CONNECTED,
		STATUS_ERROR,
	};

protected:
	Ref<NetSocket> _sock;
	uint64_t timeout = 0;
	Status status = STATUS_NONE;
	IPAddress peer_host;
	uint16_t peer_port = 0;

	Error _connect(const String &p_address, int p_port);
	Error _poll_connection();
	Error write(const uint8_t *p_data, int p_bytes, int &r_sent, bool p_block);
	Error read(uint8_t *p_buffer, int p_bytes, int &r_received, bool p_block);

	static void _bind_methods();

public:
	void accept_socket(Ref<NetSocket> p_sock, IPAddress p_host, uint16_t p_port);

	Error bind(int p_port, const IPAddress &p_host);
	Error connect_to_host(const IPAddress &p_host, int p_port);
	bool is_connected_to_host() const;
	IPAddress get_connected_host() const;
	int get_connected_port() const;
	int get_local_port() const;
	void disconnect_from_host();

	int get_available_bytes() const override;
	Status get_status();

	void set_no_delay(bool p_enabled);

	// Poll functions (wait or check for writable, readable)
	Error poll(NetSocket::PollType p_type, int timeout = 0);

	// Read/Write from StreamPeer
	Error put_data(const uint8_t *p_data, int p_bytes) override;
	Error put_partial_data(const uint8_t *p_data, int p_bytes, int &r_sent) override;
	Error get_data(uint8_t *p_buffer, int p_bytes) override;
	Error get_partial_data(uint8_t *p_buffer, int p_bytes, int &r_received) override;

	StreamPeerTCP();
	~StreamPeerTCP();
};

VARIANT_ENUM_CAST(StreamPeerTCP::Status);

#endif // STREAM_PEER_TCP_H