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MINOR: quic: Do not reset a full RX buffer

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As the RX buffer is not consumed by the sock i/o handler as soon as a datagram
is produced, when full an RX buffer must not be reset. The remaining room is
consumed without modifying it. The consumer has a represention of its contents:
a list of datagrams.
This commit is contained in:
Frédéric Lécaille 2022-01-27 12:19:28 +01:00 committed by Amaury Denoyelle
parent 37ae505c21
commit 320744b53d
1 changed files with 5 additions and 4 deletions
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9
src/quic_sock.c
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@ -173,7 +173,7 @@ void quic_sock_fd_iocb(int fd)
struct quic_transport_params *params;
/* Source address */
struct sockaddr_storage saddr = {0};
size_t max_sz;
size_t max_sz, cspace;
socklen_t saddrlen;
struct quic_dgram *dgram, *dgramp, *new_dgram;
@ -207,9 +207,10 @@ void quic_sock_fd_iocb(int fd)
params = &l->bind_conf->quic_params;
max_sz = params->max_udp_payload_size;
if (b_contig_space(buf) < max_sz) {
/* Note that when we enter this function, <buf> is always empty */
b_reset(buf);
cspace = b_contig_space(buf);
if (cspace < max_sz) {
/* Consume the remaining space */
b_add(buf, cspace);
if (b_contig_space(buf) < max_sz)
goto out;
}