Mercurial > hg > nginx
annotate auto/lib/make @ 9007:2dc4203d812c quic
QUIC: fixed in-flight bytes accounting.
Initially, frames are genereated and stored in ctx->frames.
Next, ngx_quic_output() collects frames to be sent in in ctx->sending.
On failure, ngx_quic_revert_sned() returns frames into ctx->frames.
On success, the ngx_quic_commit_send() moves ack-eliciting frames into
ctx->sent and frees non-ack-eliciting frames.
This function also updates in-flight bytes counter, so only actually sent
frames are accounted.
The counter is decremented in the following cases:
- acknowledgment is received
- packet was declared lost
- we are discarding context completely
In each of this cases frame is removed from ctx->sent queue and in-flight
counter is accordingly decremented.
The patch fixes the case of discarding context - only removing frames
from ctx->sent must be followed by in-flight bytes counter decrement,
otherwise cg->in_flight could experience type underflow.
The issue appeared in b1676cd64dc9.
author | Vladimir Homutov <vl@nginx.com> |
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date | Wed, 09 Feb 2022 15:51:42 +0300 |
parents | 9eefb38f0005 |
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1 |
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2 # Copyright (C) Igor Sysoev |
4412 | 3 # Copyright (C) Nginx, Inc. |
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6 if [ $PCRE != NONE -a $PCRE != NO -a $PCRE != YES ]; then |
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7 . auto/lib/pcre/make |
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8 fi |
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10 if [ $OPENSSL != NONE -a $OPENSSL != NO -a $OPENSSL != YES ]; then |
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11 . auto/lib/openssl/make |
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12 fi |
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14 if [ $ZLIB != NONE -a $ZLIB != NO -a $ZLIB != YES ]; then |
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15 . auto/lib/zlib/make |
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16 fi |
599 | 17 |
3363 | 18 if [ $NGX_LIBATOMIC != NO -a $NGX_LIBATOMIC != YES ]; then |
19 . auto/lib/libatomic/make | |
20 fi | |
21 | |
6419 | 22 if [ $USE_PERL != NO ]; then |
599 | 23 . auto/lib/perl/make |
24 fi |