#include <nghttp2/nghttp2.h>

int nghttp2_session_change_extpri_stream_priority(nghttp2_session *session, int32_t stream_id, const nghttp2_extpri *extpri, int ignore_client_signal)

Changes the priority of the existing stream denoted by stream_id. The new priority is extpri. This function is meant to be used by server for RFC 9218 extensible prioritization scheme.

If session is initialized as client, this function returns nghttp2_error.NGHTTP2_ERR_INVALID_STATE. For client, use nghttp2_submit_priority_update() instead.

If extpri->urgency is out of bound, it is set to NGHTTP2_EXTPRI_URGENCY_LOW.

If ignore_client_signal is nonzero, server starts to ignore client priority signals for this stream.

If nghttp2_settings_id.NGHTTP2_SETTINGS_NO_RFC7540_PRIORITIES of value of 1 is not submitted via nghttp2_submit_settings(), this function does nothing and returns 0.


Out of memory.


The session is initialized as client.


stream_id is zero; or a stream denoted by stream_id is not found.