nghttp3_conn_update_ack_offset
==============================

Synopsis
--------

*#include <nghttp3/nghttp3.h>*

.. function:: int nghttp3_conn_update_ack_offset(nghttp3_conn *conn, int64_t stream_id, uint64_t offset)

    
    `nghttp3_conn_update_ack_offset` tells *conn* that QUIC stack has
    acknowledged the stream data up to *offset* for a stream denoted by
    *stream_id*.
    
    If a stream denoted by *stream_id* is not found, this function
    returns 0.
    
    Alternatively, `nghttp3_conn_add_ack_offset` can be used to
    accomplish the same thing.
    
    This function returns 0 if it succeeds, or one of the following
    negative error codes:
    
    :macro:`NGHTTP3_ERR_INVALID_ARGUMENT`
        *offset* is less than the number of bytes acknowledged so far.
    :macro:`NGHTTP3_ERR_CALLBACK_FAILURE`
        User callback failed.