third_party_nghttp2/lib/nghttp2_extpri.c
Tatsuhiro Tsujikawa c10a55588b Implement RFC 9218 extensible prioritization scheme
This commit implements RFC 9218 extensible prioritization scheme.  It
is enabled when a local endpoint submits
SETTINGS_NO_RFC7540_PRIORITIES = 1.  This commit only handles priority
signal in HTTP request header field.  Priority header field in
PUSH_PROMISE is not supported.

HTTP messaging must be enabled to take advantage of this
prioritization scheme because HTTP fields are not parsed if HTTP
messaging is disabled.
2022-06-12 16:06:04 +09:00

36 lines
1.5 KiB
C

/*
* nghttp2 - HTTP/2 C Library
*
* Copyright (c) 2022 nghttp3 contributors
* Copyright (c) 2022 nghttp2 contributors
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "nghttp2_extpri.h"
uint8_t nghttp2_extpri_to_uint8(const nghttp2_extpri *extpri) {
return (uint8_t)((uint32_t)extpri->inc << 7 | extpri->urgency);
}
void nghttp2_extpri_from_uint8(nghttp2_extpri *extpri, uint8_t u8extpri) {
extpri->urgency = nghttp2_extpri_uint8_urgency(u8extpri);
extpri->inc = nghttp2_extpri_uint8_inc(u8extpri);
}