module Std::Net {
extern func bux_socket_create() -> int;
extern func bux_socket_reuse(fd: int) -> int;
extern func bux_socket_bind(fd: int, addr: String, port: int) -> int;
extern func bux_socket_listen(fd: int, backlog: int) -> int;
extern func bux_socket_accept(fd: int) -> int;
extern func bux_socket_connect(fd: int, addr: String, port: int) -> int;
extern func bux_socket_send(fd: int, data: String, len: int) -> int;
extern func bux_socket_recv(fd: int, maxLen: int) -> String;
extern func bux_socket_close(fd: int) -> int;
extern func bux_socket_error() -> String;

/* Create a TCP socket. Returns -1 on error. */
func Net_Create() -> int {
    return bux_socket_create();
}

/* Enable SO_REUSEADDR on a socket. */
func Net_SetReuse(fd: int) -> bool {
    return bux_socket_reuse(fd) == 0;
}

/* Bind a socket to an address and port. */
func Net_Bind(fd: int, addr: String, port: int) -> bool {
    return bux_socket_bind(fd, addr, port) == 0;
}

/* Start listening for connections. */
func Net_Listen(fd: int, backlog: int) -> bool {
    return bux_socket_listen(fd, backlog) == 0;
}

/* Accept a connection. Returns new fd or -1 on error. */
func Net_Accept(fd: int) -> int {
    return bux_socket_accept(fd);
}

/* Connect to a remote address and port. */
func Net_Connect(fd: int, addr: String, port: int) -> bool {
    return bux_socket_connect(fd, addr, port) == 0;
}

/* Send data. Returns bytes sent or -1 on error. */
func Net_Send(fd: int, data: String) -> int {
    return bux_socket_send(fd, data, bux_strlen(data) as int);
}

/* Receive up to maxLen bytes. Returns empty string on error/EOF. */
func Net_Recv(fd: int, maxLen: int) -> String {
    return bux_socket_recv(fd, maxLen);
}

/* Close a socket. */
func Net_Close(fd: int) -> bool {
    return bux_socket_close(fd) == 0;
}

/* Get last socket error as a string. */
func Net_LastError() -> String {
    return bux_socket_error();
}
}
