Hi, Just a rough + incomplete draft for now, to show the idea.
Series adds a new screendump qmp command. This does (a) allow to specify the device we want dump from, (b) does the actual image writing in a bottom half and (c) sends a qmp event when (not done yet, just a comment for now). It also adds a graphics_hw_update() variant with completion notification (by calling a bottom half). qxl then could stick the pointer to the notification BH into the QXLCookie struct and schedule the BH when spice server finished updating the screen. Gerd Hoffmann (2): display update with notification console: add screendump-device qmp cmd include/ui/console.h | 2 ++ qapi-schema.json | 15 +++++++++++ qmp-commands.hx | 25 +++++++++++++++++++ ui/console.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 109 insertions(+) -- 1.7.9.7
