Type Alias paho_mqtt_sys::Persistence_get

pub type Persistence_get = Option<unsafe extern "C" fn(handle: *mut c_void, key: *mut c_char, buffer: *mut *mut c_char, buflen: *mut c_int) -> c_int>;

Aliased Type

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

Variants

None

No value.

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

Some value of type T.