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Add API to change stream priority without sending PRIORITY frame

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The added API is nghttp2_session_change_stream_priority().  This
provides the same functionality to re-prioritize stream when PRIORITY
frame.  is received, but we do it without PRIORITY frame.  This could
be useful for server to change pushed stream's priority silently.
This commit is contained in:
Tatsuhiro Tsujikawa
2015-11-21 18:22:28 +09:00
parent 72f2c4b272
commit aa317c89ea
6 changed files with 74 additions and 10 deletions
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21
lib/nghttp2_session.c
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@@ -6771,3 +6771,24 @@ nghttp2_stream *nghttp2_session_get_root_stream(nghttp2_session *session) {
int nghttp2_session_check_server_session(nghttp2_session *session) {
return session->server;
}
int nghttp2_session_change_stream_priority(
nghttp2_session *session, int32_t stream_id,
const nghttp2_priority_spec *pri_spec) {
nghttp2_stream *stream;
nghttp2_priority_spec pri_spec_copy;
if (stream_id == pri_spec->stream_id) {
return NGHTTP2_ERR_INVALID_ARGUMENT;
}
stream = nghttp2_session_get_stream_raw(session, stream_id);
if (!stream) {
return NGHTTP2_ERR_INVALID_ARGUMENT;
}
pri_spec_copy = *pri_spec;
nghttp2_priority_spec_normalize_weight(&pri_spec_copy);
return nghttp2_session_reprioritize_stream(session, stream, &pri_spec_copy);
}