Type Alias rtt_cb_t

pub type rtt_cb_t = Option<unsafe extern "C" fn(arg: *mut c_void)>;

@brief Signature for the alarm callback

@param[in] arg Optional argument which is passed to the callback

Aliased Type

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

Variants

None

No value.

Some(unsafe extern "C" fn(_: *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