Displaying 6 results from an estimated 6 matches for "gnutls_record_cork".
2019 Jun 10
2
[nbdkit PATCH] crypto: Tweak handling of SEND_MORE
...nd (struct connection *conn, const void *vbuf, size_t len, int flags)
assert (session != NULL);
- if (flags & SEND_MORE)
+ if (len >= MAX_SEND_MORE_LEN) {
+ if (gnutls_record_uncork (session, GNUTLS_RECORD_WAIT) < 0)
+ return -1;
+ }
+ else if (flags & SEND_MORE)
gnutls_record_cork (session);
while (len > 0) {
--
2.20.1
2019 Jun 06
0
[nbdkit PATCH 1/2] server: Add support for corking
...Change the cork status to batch a group of send calls, and either succeed
+ * completely (returns 0) or fail (returns -1).
+ */
+static int
+crypto_cork (struct connection *conn, bool cork)
+{
+ gnutls_session_t session = conn->crypto_session;
+
+ assert (session != NULL);
+
+ if (cork)
+ gnutls_record_cork (session);
+ else if (gnutls_record_uncork (session, GNUTLS_RECORD_WAIT) < 0)
+ return -1;
+
+ return 0;
+}
+
/* There's no place in the NBD protocol to send back errors from
* close, so this function ignores errors.
*/
@@ -504,6 +522,7 @@ crypto_negotiate_tls (struct connection *c...
2019 Jun 07
0
[nbdkit PATCH v2 2/2] server: Group related transmission send()s
...continue;
diff --git a/server/crypto.c b/server/crypto.c
index 3f87944..3f3d96b 100644
--- a/server/crypto.c
+++ b/server/crypto.c
@@ -357,6 +357,9 @@ crypto_send (struct connection *conn, const void *vbuf, size_t len, int flags)
assert (session != NULL);
+ if (flags & SEND_MORE)
+ gnutls_record_cork (session);
+
while (len > 0) {
r = gnutls_record_send (session, buf, len);
if (r < 0) {
@@ -368,6 +371,10 @@ crypto_send (struct connection *conn, const void *vbuf, size_t len, int flags)
len -= r;
}
+ if (!(flags & SEND_MORE) &&
+ gnutls_record_uncork...
2019 Jun 07
4
[nbdkit PATCH v2 0/2] Reduce network overhead with MSG_MORE/corking
This time around, the numbers are indeed looking better than in v1;
and I like the interface better.
Eric Blake (2):
server: Prefer send() over write()
server: Group related transmission send()s
server/internal.h | 7 +++-
server/connections.c | 51 +++++++++++++++++++++++++---
server/crypto.c | 11 ++++--
2019 Jun 08
6
[PATCH libnbd 0/3] states: Use MSG_MORE to coalesce messages.
Appears to have a measurable benefit, see 3/3 for test results.
Rich.
2019 Jun 06
4
[nbdkit PATCH 0/2] Reduce network overhead with corking
Slightly RFC, as I need more time to investigate why Unix sockets
appeared to degrade with this patch. But as TCP sockets (over loopback
to localhost) and TLS sessions (regardless of underlying Unix or TCP)
both showed improvements, this looks like a worthwhile series.
Eric Blake (2):
server: Add support for corking
server: Cork around grouped transmission send()s
server/internal.h | 3