riot_sys

Type Alias coap_blockwise_cb_t

Source
pub type coap_blockwise_cb_t = Option<unsafe extern "C" fn(arg: *mut c_void, offset: size_t, buf: *mut u8, len: size_t, more: c_int) -> c_int>;
Expand description

@brief Coap blockwise request callback descriptor

@param[in] arg Pointer to be passed as arguments to the callback @param[in] offset Offset of received data @param[in] buf Pointer to the received data @param[in] len Length of the received data @param[in] more -1 for no option, 0 for last block, 1 for more blocks

@returns >=0 on success @returns <0 on error

Aliased Type§

enum coap_blockwise_cb_t {
    None,
    Some(unsafe extern "C" fn(_: *mut c_void, _: u32, _: *mut u8, _: u32, _: i32) -> i32),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "C" fn(_: *mut c_void, _: u32, _: *mut u8, _: u32, _: i32) -> i32)

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