Mercurial > hg > nginx
comparison src/event/quic/ngx_event_quic.c @ 9092:9553eea74f2a quic
QUIC: optimized immediate close.
Previously, before sending CONNECTION_CLOSE to client, all pending frames
were sent. This is redundant and could prevent CONNECTION_CLOSE from being
sent due to congestion control. Now pending frames are freed and
CONNECTION_CLOSE is sent without congestion control, as advised by RFC 9002:
Packets containing frames besides ACK or CONNECTION_CLOSE frames
count toward congestion control limits and are considered to be in flight.
| author | Roman Arutyunyan <arut@nginx.com> |
|---|---|
| date | Tue, 02 May 2023 17:54:53 +0400 |
| parents | be39ffdf9208 |
| children | d59277dd3d8c |
comparison
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| 9091:8f2f40d3fd18 | 9092:9553eea74f2a |
|---|---|
| 480 | 480 |
| 481 if (!qc->closing) { | 481 if (!qc->closing) { |
| 482 | 482 |
| 483 /* drop packets from retransmit queues, no ack is expected */ | 483 /* drop packets from retransmit queues, no ack is expected */ |
| 484 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) { | 484 for (i = 0; i < NGX_QUIC_SEND_CTX_LAST; i++) { |
| 485 ngx_quic_free_frames(c, &qc->send_ctx[i].frames); | |
| 485 ngx_quic_free_frames(c, &qc->send_ctx[i].sent); | 486 ngx_quic_free_frames(c, &qc->send_ctx[i].sent); |
| 486 } | 487 } |
| 487 | 488 |
| 488 if (rc == NGX_DONE) { | 489 if (rc == NGX_DONE) { |
| 489 | 490 |