Type Alias gnrc_netreg_entry_cb_t

pub type gnrc_netreg_entry_cb_t = Option<unsafe extern "C" fn(cmd: u16, pkt: *mut gnrc_pktsnip_t, ctx: *mut c_void)>;

@brief Packet handler callback for netreg entries with callback.

@pre cmd ∈ { @ref GNRC_NETAPI_MSG_TYPE_RCV, @ref GNRC_NETAPI_MSG_TYPE_SND }

@note Only available with @ref net_gnrc_netapi_callbacks.

@param[in] cmd @ref net_gnrc_netapi command type. Must be either @ref GNRC_NETAPI_MSG_TYPE_SND or @ref GNRC_NETAPI_MSG_TYPE_RCV @param[in] pkt The packet to handle. @param[in] ctx Application context.

Aliased Type

enum gnrc_netreg_entry_cb_t {
    None,
    Some(unsafe extern "C" fn(_: u16, _: *mut gnrc_pktsnip, _: *mut c_void)),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: u16, _: *mut gnrc_pktsnip, _: *mut c_void))

Some value of type T.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 4 bytes

Size for each variant:

• None: 0 bytes
• Some: 4 bytes