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interface tcp-create-socket {
use network.{network, error-code, ip-address-family};
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
create-tcp-socket: func(address-family: ip-address-family) -> result<tcp-socket, error-code>;
}