Function olm_sys::olm_pickle_session

pub unsafe extern "C" fn olm_pickle_session(
    session: *mut OlmSession, 
    key: *const c_void, 
    key_length: usize, 
    pickled: *mut c_void, 
    pickled_length: usize
) -> usize

Stores a session as a base64 string. Encrypts the session using the supplied key. Returns the length of the pickled session on success. Returns olm_error() on failure. If the pickle output buffer is smaller than olm_pickle_session_length() then olm_session_last_error() will be “OUTPUT_BUFFER_TOO_SMALL”