From d50f09ff23f5509c05e3883440849b27af051f08 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
Date: Mon, 5 Feb 2018 11:49:38 +0000
Subject: [PATCH] ui: extend VNC trottling tracing to SASL codepaths
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In previous commit:
commit 6aa22a29187e1908f5db738d27c64a9efc8d0bfa
Author: Daniel P. Berrange <berrange@redhat.com>
Date: Mon Dec 18 19:12:27 2017 +0000
ui: add trace events related to VNC client throttling
trace points related to unthrottling client I/O were missed from the
SASL codepaths.
Reported-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 20180205114938.15784-5-berrange@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
ui/vnc-auth-sasl.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/ui/vnc-auth-sasl.c b/ui/vnc-auth-sasl.c
index 8ebd0d3d00..3751a777a4 100644
--- a/ui/vnc-auth-sasl.c
+++ b/ui/vnc-auth-sasl.c
@@ -79,12 +79,23 @@ size_t vnc_client_write_sasl(VncState *vs)
vs->sasl.encodedOffset += ret;
if (vs->sasl.encodedOffset == vs->sasl.encodedLength) {
+ bool throttled = vs->force_update_offset != 0;
+ size_t offset;
if (vs->sasl.encodedRawLength >= vs->force_update_offset) {
vs->force_update_offset = 0;
} else {
vs->force_update_offset -= vs->sasl.encodedRawLength;
}
+ if (throttled && vs->force_update_offset == 0) {
+ trace_vnc_client_unthrottle_forced(vs, vs->ioc);
+ }
+ offset = vs->output.offset;
buffer_advance(&vs->output, vs->sasl.encodedRawLength);
+ if (offset >= vs->throttle_output_offset &&
+ vs->output.offset < vs->throttle_output_offset) {
+ trace_vnc_client_unthrottle_incremental(vs, vs->ioc,
+ vs->output.offset);
+ }
vs->sasl.encoded = NULL;
vs->sasl.encodedOffset = vs->sasl.encodedLength = 0;
}