[libvirt] [PATCH 0/3]add 'policy' attribute for qemu vnc display sharing policy

[Guannan Ren]

These patches try to add a new attribute 'policy' to element graphics of
vnc type. This attribute has three values:

libvirt XML: <graphics type='vnc' port='5900' policy='force-shared'>
QEMU commandline -vnc :5900,share=allow-exclusive

Allows clients to ask for exclusive access which is
implemented by dropping  other connections Connecting
multiple clients in parallel requires all clients asking
for a shared session (vncviewer: -shared switch)

libvirt XML: <graphics type='vnc' port='5900' policy='force-shared'>
QEMU commandline -vnc :5900,share=force-shared

Disables exclusive client access.  Useful for shared
desktop sessions, where you don't want someone forgetting
specify -shared disconnect everybody else.

libvirt XML: <graphics type='vnc' port='5900' policy='ignore'>
QEMU commandline -vnc :5900,share=ignore

Dompletely ignores the shared flag and allows everybody
connect unconditionally

Guannan Ren(3)
 [PATCH 1/3] qemu: new vnc display sharing policy caps flag
 [PATCH 2/3] conf: add 'policy' attribute to graphics element for vnc
 [PATCH 3/3] qemu: support share attribute and its values to -vnc

 docs/formatdomain.html.in                                    | 13 +++++++++++--
 docs/schemas/domaincommon.rng                                |  9 +++++++++
 src/conf/domain_conf.c                                       | 28 ++++++++++++++++++++++++++++
 src/conf/domain_conf.h                                       | 11 +++++++++++
 src/libvirt_private.syms                                     |  2 ++
 src/qemu/qemu_capabilities.c                                 | 12 ++++++++----
 src/qemu/qemu_capabilities.h                                 |  1 +
 src/qemu/qemu_command.c                                      | 13 +++++++++++++
 tests/qemuhelptest.c                                         |  9 ++++++---
 tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-policy.args |  4 ++++
 tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-policy.xml  | 35 +++++++++++++++++++++++++++++++++++
 tests/qemuxml2argvtest.c                                     |  1 +
 12 files changed, 129 insertions(+), 9 deletions(-)