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MINOR: mux_quic: implement basic committed_extra_streams accounting

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Account QUIC frontend connections into committed_extra_streams when
stream elasticity setting is active. This is performed in QCC init and
release functions.

This patch has no impact on QUIC subsystem for now. Connections will
still allow a static number of concurrent streams based on
tune.quic.fe.stream.max-concurrent. However, this has a direct
repercussion on H2 subsystem, as a higher count of QUIC connections will
reduce the concurrent streams allowed there.
This commit is contained in:
Amaury Denoyelle 2026-05-13 08:08:11 +02:00
parent 33c8270903
commit e4adba6e64
1 changed files with 11 additions and 0 deletions
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11
src/mux_quic.c
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@ -3586,6 +3586,12 @@ static void qcc_release(struct qcc *qcc)
}
TRACE_PROTO("application layer released", QMUX_EV_QCC_END, conn);
if (!(qcc->flags & QC_CF_IS_BACK) && global.tune.streams_elasticity &&
qcc->lfctl.ms_bidi_init > 1) {
_HA_ATOMIC_SUB(&tg_ctx->committed_extra_streams,
qcc->lfctl.ms_bidi_init - 1);
}
if (conn && !conn_is_quic(conn)) {
b_free(&qcc->rx.qmux_buf);
b_free(&qcc->tx.qmux_buf);
@ -3928,6 +3934,11 @@ static int qcm_init(struct connection *conn, struct proxy *prx,
qcc->next_bidi_l = 0x01;
qcc->largest_uni_r = 0x02;
qcc->next_uni_l = 0x03;
if (global.tune.streams_elasticity && qcc->lfctl.ms_bidi_init > 1) {
_HA_ATOMIC_ADD(&tg_ctx->committed_extra_streams,
qcc->lfctl.ms_bidi_init - 1);
}
}
qcc->wait_event.tasklet = tasklet_new();