diff options
| author | ChenLiang <chenliang88@huawei.com> | 2014-09-29 15:00:40 +0800 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2014-10-28 11:51:04 +0100 |
| commit | 9d6b20704734fe1ab789400806ebd54f579d50a2 (patch) | |
| tree | ba2202b0ea5a0394840d17db0cd6f64415bdd6cf /ui | |
| parent | e6908bfe8e07f2b452e78e677da1b45b1c0f6829 (diff) | |
| download | qemu-9d6b20704734fe1ab789400806ebd54f579d50a2.zip qemu-9d6b20704734fe1ab789400806ebd54f579d50a2.tar.gz qemu-9d6b20704734fe1ab789400806ebd54f579d50a2.tar.bz2 | |
vnc: return directly if no vnc client connected
graphic_hw_update and vnc_refresh_server_surface aren't
need to do when no vnc client connected. It can reduce
lock contention, because vnc_refresh will hold global big
lock two millisecond every three seconds.
Signed-off-by: ChenLiang <chenliang88@huawei.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'ui')
| -rw-r--r-- | ui/vnc.c | 10 |
1 files changed, 5 insertions, 5 deletions
@@ -2778,6 +2778,11 @@ static void vnc_refresh(DisplayChangeListener *dcl) VncState *vs, *vn; int has_dirty, rects = 0; + if (QTAILQ_EMPTY(&vd->clients)) { + update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_MAX); + return; + } + graphic_hw_update(NULL); if (vnc_trylock_display(vd)) { @@ -2793,11 +2798,6 @@ static void vnc_refresh(DisplayChangeListener *dcl) /* vs might be free()ed here */ } - if (QTAILQ_EMPTY(&vd->clients)) { - update_displaychangelistener(&vd->dcl, VNC_REFRESH_INTERVAL_MAX); - return; - } - if (has_dirty && rects) { vd->dcl.update_interval /= 2; if (vd->dcl.update_interval < VNC_REFRESH_INTERVAL_BASE) { |