path: root/qemu-options.hx
diff options
authorGerd Hoffmann <kraxel@redhat.com>2011-11-24 18:10:49 +0100
committerGerd Hoffmann <kraxel@redhat.com>2012-02-10 09:58:33 +0100
commit8cf364898cfe4ae761f2253e91a040633d6f87be (patch)
tree056bc466b445d527bda61b0021c63bf3d152f4b8 /qemu-options.hx
parente26437c2d4a7f6cbbc0bbd51b08a2dcce84bb93b (diff)
vnc: implement shared flag handling.
VNC clients send a shared flag in the client init message. Up to now qemu completely ignores this. This patch implements shared flag handling. It comes with three policies: By default qemu behaves as one would expect: Asking for a exclusive access grants exclusive access to the client connecting. There is also a desktop sharing mode which disallows exclusive connects (so one forgetting -shared wouldn't drop everybody else) and a compatibility mode which mimics the traditional (but non-conforming) qemu behavior. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'qemu-options.hx')
1 files changed, 13 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index f577cc8470..4bb36175ba 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -1095,6 +1095,19 @@ This can be really helpful to save bandwidth when playing videos. Disabling
adaptive encodings allows to restore the original static behavior of encodings
like Tight.
+@item share=[allow-exclusive|force-shared|ignore]
+Set display sharing policy. 'allow-exclusive' allows clients to ask
+for exclusive access. As suggested by the rfb spec this is
+implemented by dropping other connections. Connecting multiple
+clients in parallel requires all clients asking for a shared session
+(vncviewer: -shared switch). This is the default. 'force-shared'
+disables exclusive client access. Useful for shared desktop sessions,
+where you don't want someone forgetting specify -shared disconnect
+everybody else. 'ignore' completely ignores the shared flag and
+allows everybody connect unconditionally. Doesn't conform to the rfb
+spec but is traditional qemu behavior.
@end table