Function libnghttp2_sys::nghttp2_session_change_stream_priority

pub unsafe extern "C" fn nghttp2_session_change_stream_priority(
    session: *mut nghttp2_session, 
    stream_id: i32, 
    pri_spec: *const nghttp2_priority_spec
) -> c_int

@function

Changes priority of existing stream denoted by |stream_id|. The new priority specification is |pri_spec|.

The priority is changed silently and instantly, and no PRIORITY frame will be sent to notify the peer of this change. This function may be useful for server to change the priority of pushed stream.

If |session| is initialized as server, and pri_spec->stream_id points to the idle stream, the idle stream is created if it does not exist. The created idle stream will depend on root stream (stream 0) with weight 16.

Otherwise, if stream denoted by pri_spec->stream_id is not found, we use default priority instead of given |pri_spec|. That is make stream depend on root stream with weight 16.

This function returns 0 if it succeeds, or one of the following negative error codes:

:enum:NGHTTP2_ERR_NOMEM Out of memory. :enum:NGHTTP2_ERR_INVALID_ARGUMENT Attempted to depend on itself; or no stream exist for the given |stream_id|; or |stream_id| is 0