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Udp

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This commit is contained in:
Lauri Kasanen
2022-07-26 10:38:14 +00:00
committed by Matthew McClaskey
parent ba902f8194
commit 3b40a92548
72 changed files with 3314 additions and 52 deletions
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37
common/rfb/VNCSConnectionST.cxx
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@@ -53,7 +53,7 @@ extern rfb::BoolParameter disablebasicauth;
VNCSConnectionST::VNCSConnectionST(VNCServerST* server_, network::Socket *s,
bool reverse)
: sock(s), reverseConnection(reverse),
: upgradingToUdp(false), sock(s), reverseConnection(reverse),
inProcessMessages(false),
pendingSyncFence(false), syncFence(false), fenceFlags(0),
fenceDataLen(0), fenceData(NULL), congestionTimer(this),
@@ -63,7 +63,8 @@ VNCSConnectionST::VNCSConnectionST(VNCServerST* server_, network::Socket *s,
continuousUpdates(false), encodeManager(this, &server_->encCache),
needsPermCheck(false), pointerEventTime(0),
clientHasCursor(false),
accessRights(AccessDefault), startTime(time(0)), frameTracking(false)
accessRights(AccessDefault), startTime(time(0)), frameTracking(false),
udpFramesSinceFull(0)
{
setStreams(&sock->inStream(), &sock->outStream());
peerEndpoint.buf = sock->getPeerEndpoint();
@@ -1231,7 +1232,7 @@ bool VNCSConnectionST::isCongested()
if (sock->outStream().bufferUsage() > 0)
return true;
if (!cp.supportsFence)
if (!cp.supportsFence || cp.supportsUdp)
return false;
congestion.updatePosition(sock->outStream().length());
@@ -1462,6 +1463,14 @@ void VNCSConnectionST::writeDataUpdate()
if (!pending.is_empty())
ui.copypassed.clear();
// Do we need to send a full frame?
if (Server::udpFullFrameFrequency && cp.supportsUdp) {
if (udpFramesSinceFull >= (unsigned) Server::udpFullFrameFrequency) {
udpFramesSinceFull = 0;
ui.changed.assign_union(Region(Rect(0, 0, cp.width, cp.height)));
}
}
// Return if there is nothing to send the client.
const unsigned losslessThreshold = 80 + 2 * 1000 / Server::frameRate;
@@ -1518,6 +1527,9 @@ void VNCSConnectionST::writeDataUpdate()
updates.subtract(req);
requested.clear();
if (Server::udpFullFrameFrequency && cp.supportsUdp)
udpFramesSinceFull++;
}
void VNCSConnectionST::writeBinaryClipboard()
@@ -1745,3 +1757,22 @@ bool VNCSConnectionST::checkOwnerConn() const
return false;
}
void VNCSConnectionST::udpUpgrade(const char *resp)
{
if (resp[0] == 'H') {
vlog.info("Client %s requested upgrade to udp, but WebUdp refused", sock->getPeerAddress());
} else {
vlog.info("Client %s requesting upgrade to udp", sock->getPeerAddress());
upgradingToUdp = true;
}
writer()->writeUdpUpgrade(resp);
}
void VNCSConnectionST::udpDowngrade()
{
cp.supportsUdp = false;
cp.useCopyRect = true;
vlog.info("Client %s downgrading from udp", sock->getPeerAddress());
}