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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:24:08 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:24:08 +0000 |
commit | f449f278dd3c70e479a035f50a9bb817a9b433ba (patch) | |
tree | 8ca2bfb785dda9bb4d573acdf9b42aea9cd51383 /src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_rst.h | |
parent | Initial commit. (diff) | |
download | knot-upstream/3.2.6.tar.xz knot-upstream/3.2.6.zip |
Adding upstream version 3.2.6.upstream/3.2.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_rst.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_rst.h b/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_rst.h new file mode 100644 index 0000000..488c655 --- /dev/null +++ b/src/contrib/libngtcp2/ngtcp2/lib/ngtcp2_rst.h @@ -0,0 +1,85 @@ +/* + * ngtcp2 + * + * Copyright (c) 2019 ngtcp2 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. + */ +#ifndef NGTCP2_RST_H +#define NGTCP2_RST_H + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif /* HAVE_CONFIG_H */ + +#include <ngtcp2/ngtcp2.h> + +#include "ngtcp2_window_filter.h" + +typedef struct ngtcp2_rtb_entry ngtcp2_rtb_entry; + +/** + * @struct + * + * ngtcp2_rs contains connection state for delivery rate estimation. + */ +typedef struct ngtcp2_rs { + ngtcp2_duration interval; + uint64_t delivered; + uint64_t prior_delivered; + ngtcp2_tstamp prior_ts; + uint64_t tx_in_flight; + uint64_t lost; + uint64_t prior_lost; + ngtcp2_duration send_elapsed; + ngtcp2_duration ack_elapsed; + int is_app_limited; +} ngtcp2_rs; + +void ngtcp2_rs_init(ngtcp2_rs *rs); + +/* + * ngtcp2_rst implements delivery rate estimation described in + * https://tools.ietf.org/html/draft-cheng-iccrg-delivery-rate-estimation-00 + */ +typedef struct ngtcp2_rst { + ngtcp2_rs rs; + ngtcp2_window_filter wf; + uint64_t delivered; + ngtcp2_tstamp delivered_ts; + ngtcp2_tstamp first_sent_ts; + uint64_t app_limited; + uint64_t next_round_delivered; + uint64_t round_count; + uint64_t lost; + int is_cwnd_limited; +} ngtcp2_rst; + +void ngtcp2_rst_init(ngtcp2_rst *rst); + +void ngtcp2_rst_on_pkt_sent(ngtcp2_rst *rst, ngtcp2_rtb_entry *ent, + const ngtcp2_conn_stat *cstat); +int ngtcp2_rst_on_ack_recv(ngtcp2_rst *rst, ngtcp2_conn_stat *cstat, + uint64_t pkt_delivered); +void ngtcp2_rst_update_rate_sample(ngtcp2_rst *rst, const ngtcp2_rtb_entry *ent, + ngtcp2_tstamp ts); +void ngtcp2_rst_update_app_limited(ngtcp2_rst *rst, ngtcp2_conn_stat *cstat); + +#endif /* NGTCP2_RST_H */ |