MINOR: quic: Wrong RX buffer tail handling when no more contiguous data
The producer must know where is the tailing hole in the RX buffer
when it purges it from consumed datagram. This is done allocating
a fake datagram with the remaining number of bytes which cannot be produced
at the tail of the RX buffer as length.
diff --git a/src/quic_sock.c b/src/quic_sock.c
index 37e7f1b..5533b01 100644
--- a/src/quic_sock.c
+++ b/src/quic_sock.c
@@ -209,6 +209,17 @@
max_sz = params->max_udp_payload_size;
cspace = b_contig_space(buf);
if (cspace < max_sz) {
+ struct quic_dgram *dgram;
+
+ /* Allocate a fake datagram, without data to locate
+ * the end of the RX buffer (required during purging).
+ */
+ dgram = pool_zalloc(pool_head_quic_dgram);
+ if (!dgram)
+ goto out;
+
+ dgram->len = cspace;
+ LIST_APPEND(&rxbuf->dgrams, &dgram->list);
/* Consume the remaining space */
b_add(buf, cspace);
if (b_contig_space(buf) < max_sz)