Function pamoja_mqtt_message_payload_len 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn pamoja_mqtt_message_payload_len(
    message: *const PamojaMqttMessage,
) -> usize

Returns the length in bytes of a message’s payload.

Returns

The payload length, or 0 if message is null.

Safety

message must be a live handle from pamoja_mqtt_client_recv, or null.