MINOR: quic: Add traces to qc_may_build_pkt()

This patch is very useful to debug issues in relation with the packets building.

diff --git a/src/quic_conn.c b/src/quic_conn.c
index 2b3814976516a06f42c42c866ca5f4f6fddfc890..891ea41f16aaec12a5fccde888978bb741f10d04 100644 (file)
--- a/src/quic_conn.c
+++ b/src/quic_conn.c
@@ -3441,6 +3441,11 @@ static int qc_may_build_pkt(struct quic_conn *qc, struct list *frms,
                ((qel->pktns->flags & QUIC_FL_PKTNS_ACK_REQUIRED) &&
                 (force_ack || nb_aepkts_since_last_ack >= QUIC_MAX_RX_AEPKTS_SINCE_LAST_ACK));
 
+       TRACE_PRINTF(TRACE_LEVEL_DEVELOPER, QUIC_EV_CONN_PHPKTS, qc, 0, 0, 0,
+                    "has_sec=%d cc=%d probe=%d must_ack=%d frms=%d prep_in_fligh=%llu cwnd=%llu",
+                    quic_tls_has_tx_sec(qel), cc, probe, *must_ack, LIST_ISEMPTY(frms),
+                    (ullong)qc->path->prep_in_flight, (ullong)qc->path->cwnd);
+
        /* Do not build any more packet if the TX secrets are not available or
         * if there is nothing to send, i.e. if no CONNECTION_CLOSE or ACK are required
         * and if there is no more packets to send upon PTO expiration