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@since(version = 0.2.0)
interface tcp-create-socket {
@since(version = 0.2.0)
use network.{network, error-code, ip-address-family};
@since(version = 0.2.0)
use tcp.{tcp-socket};
/// Create a new TCP socket.
///
/// Similar to `socket(AF_INET or AF_INET6, SOCK_STREAM, IPPROTO_TCP)` in POSIX.
/// On IPv6 sockets, IPV6_V6ONLY is enabled by default and can't be configured otherwise.
///
/// This function does not require a network capability handle. This is considered to be safe because
/// at time of creation, the socket is not bound to any `network` yet. Up to the moment `bind`/`connect`
/// is called, the socket is effectively an in-memory configuration object, unable to communicate with the outside world.
///
/// All sockets are non-blocking. Use the wasi-poll interface to block on asynchronous operations.
///
/// # Typical errors
/// - `not-supported`: The specified `address-family` is not supported. (EAFNOSUPPORT)
/// - `new-socket-limit`: The new socket resource could not be created because of a system limit. (EMFILE, ENFILE)
///
/// # References
/// - <https://pubs.opengroup.org/onlinepubs/9699919799/functions/socket.html>
/// - <https://man7.org/linux/man-pages/man2/socket.2.html>
/// - <https://learn.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsasocketw>
/// - <https://man.freebsd.org/cgi/man.cgi?query=socket&sektion=2>
@since(version = 0.2.0)
create-tcp-socket: func(address-family: ip-address-family) -> result<tcp-socket, error-code>;
}
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