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comparison src/event/quic/ngx_event_quic_output.c @ 9140:e9a003d40485

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QUIC: fixed congesion control in GSO mode. In non-GSO mode, a datagram is sent if congestion window is not exceeded by the time of send. The window could be exceeded by a small amount after the send. In GSO mode, congestion window was checked in a similar way, but for all concatenated datagrams as a whole. This could result in exceeding congestion window by a lot. Now congestion window is checked for every datagram in GSO mode as well.
author Roman Arutyunyan <arut@nginx.com>
date Thu, 27 Jul 2023 13:35:42 +0400
parents d7dec2970161
children 48691bab4474
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9139:d7dec2970161 9140:e9a003d40485
356 356
357 for ( ;; ) { 357 for ( ;; ) {
358 358
359 len = ngx_min(segsize, (size_t) (end - p)); 359 len = ngx_min(segsize, (size_t) (end - p));
360 360
361 if (len && cg->in_flight < cg->window) { 361 if (len && cg->in_flight + (p - dst) < cg->window) {
362 362
363 n = ngx_quic_output_packet(c, ctx, p, len, len); 363 n = ngx_quic_output_packet(c, ctx, p, len, len);
364 if (n == NGX_ERROR) { 364 if (n == NGX_ERROR) {
365 return NGX_ERROR; 365 return NGX_ERROR;
366 } 366 }