MINOR: quic: define quic_pacing module

Makefile

@@ -652,7 +652,7 @@ OPTIONS_OBJS += src/quic_rx.o src/mux_quic.o src/h3.o src/quic_tx.o	\
                 src/cfgparse-quic.o src/qmux_trace.o src/qpack-enc.o	\
                 src/qpack-tbl.o src/h3_stats.o src/quic_stats.o		\
                 src/quic_fctl.o src/cbuf.o src/quic_rules.o         \
-                src/quic_token.o
+                src/quic_token.o src/quic_pacing.o
 endif
 
 ifneq ($(USE_QUIC_OPENSSL_COMPAT:0=),)

include/haproxy/mux_quic-t.h

@@ -15,6 +15,7 @@
 #include <haproxy/ncbuf-t.h>
 #include <haproxy/quic_fctl-t.h>
 #include <haproxy/quic_frame-t.h>
+#include <haproxy/quic_pacing-t.h>
 #include <haproxy/quic_stream-t.h>
 #include <haproxy/stconn-t.h>
 #include <haproxy/time-t.h>
@@ -68,6 +69,7 @@ struct qcc {
 	struct {
 		struct quic_fctl fc; /* stream flow control applied on sending */
 		uint64_t buf_in_flight; /* sum of currently allocated Tx buffer sizes */
+		struct quic_pacer pacer;
 	} tx;
 
 	uint64_t largest_bidi_r; /* largest remote bidi stream ID opened. */

include/haproxy/quic_conn.h

@@ -45,6 +45,7 @@
 #include <haproxy/quic_enc.h>
 #include <haproxy/quic_frame.h>
 #include <haproxy/quic_loss.h>
+#include <haproxy/quic_pacing.h>
 #include <haproxy/quic_rx.h>
 #include <haproxy/mux_quic.h>
 

include/haproxy/quic_pacing-t.h

@@ -0,0 +1,10 @@
+#ifndef _HAPROXY_QUIC_PACING_T_H
+#define _HAPROXY_QUIC_PACING_T_H
+
+#include <haproxy/quic_cc-t.h>
+
+struct quic_pacer {
+	const struct quic_cc_path *path;
+};
+
+#endif /* _HAPROXY_QUIC_PACING_T_H */

include/haproxy/quic_pacing.h

@@ -0,0 +1,12 @@
+#ifndef _HAPROXY_QUIC_PACING_H
+#define _HAPROXY_QUIC_PACING_H
+
+#include <haproxy/quic_pacing-t.h>
+
+static inline void quic_pacing_init(struct quic_pacer *pacer,
+                                    const struct quic_cc_path *path)
+{
+	pacer->path = path;
+}
+
+#endif /* _HAPROXY_QUIC_PACING_H */

src/mux_quic.c

@@ -2875,6 +2875,7 @@ static int qmux_init(struct connection *conn, struct proxy *prx,
 	qcc->rfctl.msd_uni_l = rparams->initial_max_stream_data_uni;
 
 	qcc->tx.buf_in_flight = 0;
+	quic_pacing_init(&qcc->tx.pacer, conn->handle.qc->path);
 
 	if (conn_is_back(conn)) {
 		qcc->next_bidi_l    = 0x00;

src/quic_pacing.c

@@ -0,0 +1 @@
+#include <haproxy/quic_pacing.h>