Type Alias paho_mqtt_sys::Persistence_put

pub type Persistence_put = Option<unsafe extern "C" fn(handle: *mut c_void, key: *mut c_char, bufcount: c_int, buffers: *mut *mut c_char, buflens: *mut c_int) -> c_int>;

Aliased Type

enum Persistence_put {
    None,
    Some(unsafe extern "C" fn(_: *mut c_void, _: *mut i8, _: i32, _: *mut *mut i8, _: *mut i32) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut c_void, _: *mut i8, _: i32, _: *mut *mut i8, _: *mut i32) -> i32)

Some value of type T.