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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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12
lib/nghttp2_submit.c
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@@ -117,14 +117,6 @@ fail2:
return rv;
}
static void adjust_priority_spec_weight(nghttp2_priority_spec *pri_spec) {
if (pri_spec->weight < NGHTTP2_MIN_WEIGHT) {
pri_spec->weight = NGHTTP2_MIN_WEIGHT;
} else if (pri_spec->weight > NGHTTP2_MAX_WEIGHT) {
pri_spec->weight = NGHTTP2_MAX_WEIGHT;
}
}
static int32_t submit_headers_shared_nva(nghttp2_session *session,
uint8_t flags, int32_t stream_id,
const nghttp2_priority_spec *pri_spec,
@@ -141,7 +133,7 @@ static int32_t submit_headers_shared_nva(nghttp2_session *session,
if (pri_spec) {
copy_pri_spec = *pri_spec;
adjust_priority_spec_weight(&copy_pri_spec);
nghttp2_priority_spec_normalize_weight(&copy_pri_spec);
} else {
nghttp2_priority_spec_default_init(&copy_pri_spec);
}
@@ -206,7 +198,7 @@ int nghttp2_submit_priority(nghttp2_session *session, uint8_t flags _U_,
copy_pri_spec = *pri_spec;
adjust_priority_spec_weight(&copy_pri_spec);
nghttp2_priority_spec_normalize_weight(&copy_pri_spec);
item = nghttp2_mem_malloc(mem, sizeof(nghttp2_outbound_item));