Function yrs::ytransaction_state_diff_v1

#[no_mangle]
pub unsafe extern "C" fn ytransaction_state_diff_v1(
    txn: *const Transaction, 
    sv: *const c_uchar, 
    sv_len: c_int, 
    len: *mut c_int
) -> *mut c_uchar

Returns a delta difference between current state of a transaction’s document and a state vector sv encoded as a binary payload using lib0 version 1 encoding (which could be generated using ytransaction_state_vector_v1). Such delta can be send back to the state vector’s sender in order to propagate and apply (using ytransaction_apply) all updates known to a current document, which remote peer was not aware of.

If passed sv pointer is null, the generated diff will be a snapshot containing entire state of the document.

A length of an encoded state vector payload must be passed as sv_len parameter.

A length of generated delta diff binary will be passed within a len out parameter.

Once no longer needed, a returned binary can be disposed using ybinary_destroy function.