//
// Copyright 2025 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
// Copyright 2019 Devolutions <info@devolutions.net>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt).  A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//

#ifndef PLATFORM_WIN_WINTCP_H
#define PLATFORM_WIN_WINTCP_H

// This header file is private to the TCP support for Windows.

#include "../../core/nng_impl.h"

struct nni_tcp_conn {
	nng_stream      ops;
	SOCKET          s;
	nni_win_io      recv_io;
	nni_win_io      send_io;
	nni_win_io      conn_io;
	nni_list        recv_aios;
	nni_list        send_aios;
	nni_aio        *conn_aio;
	nng_sockaddr    sockname;
	nng_sockaddr    peername;
	nni_tcp_dialer *dialer;
	void           *listener;
	int             recv_rv;
	int             send_rv;
	int             conn_rv;
	bool            closed;
	char            buf[512]; // to hold acceptex results
	bool            sending;
	bool            recving;
	nni_mtx         mtx;
	nni_cv          cv;
};

extern int nni_win_tcp_init(nni_tcp_conn **, SOCKET);

// Following functions are wrappers around Windows functions that have to be
// looked up by pointer/GUID.
extern int nni_win_acceptex(
    SOCKET listen, SOCKET child, void *buf, LPOVERLAPPED olpd);
extern void nni_win_get_acceptex_sockaddrs(
    void *buf, SOCKADDR_STORAGE *self, SOCKADDR_STORAGE *peer);
extern int nni_win_connectex(
    SOCKET s, SOCKADDR *peer, int peer_len, LPOVERLAPPED olpd);

#endif // NNG_PLATFORM_WIN_WINTCP_H