Enum ares_socket_opt_t 

#[repr(u32)]
pub enum ares_socket_opt_t {
    ARES_SOCKET_OPT_SENDBUF_SIZE = 0,
    ARES_SOCKET_OPT_RECVBUF_SIZE = 1,
    ARES_SOCKET_OPT_BIND_DEVICE = 2,
    ARES_SOCKET_OPT_TCP_FASTOPEN = 3,
}

Socket options in request to asetsockopt() in struct ares_socket_functions_ex

Variants

ARES_SOCKET_OPT_SENDBUF_SIZE = 0

Set the send buffer size. Value is a pointer to an int. (SO_SNDBUF)

ARES_SOCKET_OPT_RECVBUF_SIZE = 1

Set the recv buffer size. Value is a pointer to an int. (SO_RCVBUF)

ARES_SOCKET_OPT_BIND_DEVICE = 2

Set the network interface to use as the source for communication. Value is a C string. (SO_BINDTODEVICE)

ARES_SOCKET_OPT_TCP_FASTOPEN = 3

Enable TCP Fast Open. Value is a pointer to an ares_bool_t. On some systems this could be a no-op if it is known it is on by default and return success. Other systems may be a no-op if known the system does not support the feature and returns failure with errno set to ENOSYS or WSASetLastError(WSAEOPNOTSUPP).

Trait Implementations

impl Clone for ares_socket_opt_t

fn clone(&self) -> ares_socket_opt_t

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ares_socket_opt_t

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for ares_socket_opt_t

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ares_socket_opt_t

fn eq(&self, other: &ares_socket_opt_t) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ares_socket_opt_t

impl Eq for ares_socket_opt_t

impl StructuralPartialEq for ares_socket_opt_t