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728a7ac954
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Daniel P. Berrange 728a7ac954 ui: correctly reset framebuffer update state after processing dirty regions 
According to the RFB protocol, a client sends one or more framebuffer update
requests to the server. The server can reply with a single framebuffer update
response, that covers all previously received requests. Once the client has
read this update from the server, it may send further framebuffer update
requests to monitor future changes. The client is free to delay sending the
framebuffer update request if it needs to throttle the amount of data it is
reading from the server.

The QEMU VNC server, however, has never correctly handled the framebuffer
update requests. Once QEMU has received an update request, it will continue to
send client updates forever, even if the client hasn't asked for further
updates. This prevents the client from throttling back data it gets from the
server. This change fixes the flawed logic such that after a set of updates are
sent out, QEMU waits for a further update request before sending more data.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20171218191228.31018-8-berrange@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-01-12 13:48:54 +01:00
..
keycodemapdb@10739aa260 ui: pull in latest keycodemapdb 2017-10-23 10:50:02 +02:00
shader opengl: add flipping vertex shader 2017-10-17 10:25:42 +02:00
cocoa.m ui/cocoa.m: Send ctrl-alt key combos to guest if QEMU isn't using them 2017-11-07 10:14:14 +00:00
console-gl.c ui: use QEMU_IS_ALIGNED macro 2017-11-10 14:27:29 +01:00
console.c ui: fix dcl unregister 2017-11-10 11:06:43 +01:00
curses_keys.h ui: add next and prior keysyms 2017-07-27 14:23:09 +02:00
curses.c console: purge curses bits from console.h 2017-09-29 10:36:33 +02:00
cursor_hidden.xpm ui: move files to ui/ and include/ui/ 2012-12-19 08:31:30 +01:00
cursor_left_ptr.xpm ui: move files to ui/ and include/ui/ 2012-12-19 08:31:30 +01:00
cursor.c ui: use DIV_ROUND_UP 2017-08-31 12:29:07 +02:00
egl-context.c egl: explicitly ask for core context 2017-05-12 12:02:48 +02:00
egl-headless.c egl-headless: add dmabuf support 2017-10-17 10:25:42 +02:00
egl-helpers.c egl-helpers: add egl_texture_blit and egl_texture_blend 2017-10-17 10:25:42 +02:00
gtk-egl.c opengl: move shader init from console-gl.c to shader.c 2017-10-17 10:25:42 +02:00
gtk-gl-area.c ui: opengl updates for dma-buf support. 2017-10-19 12:09:53 +01:00
gtk.c ui/gtk: Fix deprecation of vte_terminal_copy_clipboard 2017-10-16 14:50:54 +02:00
input-keymap.c ui: generate qcode to linux mappings 2017-12-14 15:24:30 -08:00
input-legacy.c ui: fix crash with sendkey and raw key numbers 2017-10-23 10:50:02 +02:00
input-linux.c ui: move qemu_input_linux_to_qcode() 2017-07-27 14:23:09 +02:00
input.c ui: normalize the 'sysrq' key into the 'print' key 2017-10-23 10:50:02 +02:00
keymaps.c General warn report fixups 2017-09-19 14:09:34 +02:00
keymaps.h ps2: fix sending of PAUSE/BREAK scancodes 2017-07-27 14:24:05 +02:00
Makefile.objs buildsys: Move sdl cflags/libs to per object 2017-09-22 10:20:34 +08:00
qemu-pixman.c pixman: drop submodule 2017-09-13 10:15:43 +02:00
qemu-x509.h ui: move files to ui/ and include/ui/ 2012-12-19 08:31:30 +01:00
sdl2-2d.c SDL2: add bgrx pixel format 2016-06-03 08:23:26 +02:00
sdl2-gl.c opengl: move shader init from console-gl.c to shader.c 2017-10-17 10:25:42 +02:00
sdl2-input.c ui: Clean up includes 2016-02-04 17:01:04 +00:00
sdl2-keymap.h sdl2: keymap fixups 2014-09-16 08:07:05 +02:00
sdl2.c sdl2: Fix broken display updating after the window is hidden 2017-11-16 09:57:47 +01:00
sdl_keysym.h ui/sdl2 : initial port to SDL 2.0 (v2.0) 2014-03-05 09:52:05 +01:00
sdl_zoom_template.h sdl: Fix heap smash in sdl_zoom_rgb{16,32} for int > 32 bits 2013-01-15 18:25:30 -06:00
sdl_zoom.c all: Remove unnecessary glib.h includes 2016-06-07 18:19:24 +03:00
sdl_zoom.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
sdl.c shutdown: Add source information to SHUTDOWN and RESET 2017-05-23 13:28:17 +02:00
shader.c opengl: add flipping vertex shader 2017-10-17 10:25:42 +02:00
spice-core.c QAPI patches for 2017-06-09 2017-06-22 11:34:39 +01:00
spice-display.c opengl: move shader init from console-gl.c to shader.c 2017-10-17 10:25:42 +02:00
spice-input.c ui: correctly detect spice PAUSE scancode sequence 2017-07-28 12:35:40 +02:00
trace-events ui: add tracing of VNC authentication process 2017-09-29 10:36:34 +02:00
vgafont.h ui: move files to ui/ and include/ui/ 2012-12-19 08:31:30 +01:00
vnc_keysym.h ui: add next and prior keysyms 2017-07-27 14:23:09 +02:00
vnc-auth-sasl.c ui: track how much decoded data we consumed when doing SASL encoding 2018-01-12 13:48:54 +01:00
vnc-auth-sasl.h ui: track how much decoded data we consumed when doing SASL encoding 2018-01-12 13:48:54 +01:00
vnc-auth-vencrypt.c ui: Always remove an old VNC channel watch before adding a new one 2017-10-04 13:21:53 +01:00
vnc-auth-vencrypt.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
vnc-enc-hextile-template.h pixman/vnc: use pixman images in vnc. 2012-11-01 14:00:04 +01:00
vnc-enc-hextile.c ui: Clean up includes 2016-02-04 17:01:04 +00:00
vnc-enc-tight.c vnc: use DIV_ROUND_UP 2017-08-31 12:29:07 +02:00
vnc-enc-tight.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
vnc-enc-zlib.c ui: Clean up includes 2016-02-04 17:01:04 +00:00
vnc-enc-zrle-template.c ui: Clean up includes 2016-02-04 17:01:04 +00:00
vnc-enc-zrle.c vnc: simple clean up 2017-05-12 12:34:31 +02:00
vnc-enc-zrle.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
vnc-enc-zywrle-template.c ui: Clean up includes 2016-02-04 17:01:04 +00:00
vnc-enc-zywrle.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
vnc-jobs.c ui/vnc: Drop unused vnc_has_job() and vnc_jobs_clear() 2017-02-08 14:59:36 +01:00
vnc-jobs.h ui/vnc: Drop unused vnc_has_job() and vnc_jobs_clear() 2017-02-08 14:59:36 +01:00
vnc-palette.c all: Remove unnecessary glib.h includes 2016-06-07 18:19:24 +03:00
vnc-palette.h all: Clean up includes 2016-02-23 12:43:05 +00:00
vnc-ws.c ui: Always remove an old VNC channel watch before adding a new one 2017-10-04 13:21:53 +01:00
vnc-ws.h Clean up ill-advised or unusual header guards 2016-07-12 16:20:46 +02:00
vnc.c ui: correctly reset framebuffer update state after processing dirty regions 2018-01-12 13:48:54 +01:00
vnc.h ui: introduce enum to track VNC client framebuffer update request state 2018-01-12 13:48:54 +01:00
x_keymap.c ui: Clean up includes 2016-02-04 17:01:04 +00:00
x_keymap.h Delete useless 'extern' qualifiers for functions 2011-01-23 16:21:20 +00:00