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Vladimir Sementsov-Ogievskiy 2e572baf65 ui/vnc-clipboard: fix adding notifier twice 
vnc_server_cut_text_caps() is not guaranteed to be called only once.

If it called twice, we finally call notifier_list_add() twice with same
element. Which leads to loopback QLIST. So, on next
notifier_list_notify() we'll loop forever and QEMU stuck.

So, let's only register new notifier if it's not yet registered.

Note, that similar check is used in vdagent_chr_recv_caps() (before
call qemu_clipboard_peer_register()), and also before
qemu_clipboard_peer_unregister() call in vdagent_disconnect() and in
vnc_disconnect_finish().

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211110103800.2266729-1-vsementsov@virtuozzo.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-11-22 11:14:28 +01:00
..
icons
keycodemapdb@d21009b1c9 ui: update keycodemapdb submodule commit 2021-07-26 10:24:49 +02:00
shader
clipboard.c ui/clipboard: release owned grabs on unregister 2021-08-31 17:25:14 +04:00
cocoa.m ui/cocoa: Fix the type of main's argv 2021-07-26 10:24:49 +02:00
console-gl.c opengl: Do not convert format with glTexImage2D on OpenGL ES 2021-03-15 17:37:49 +01:00
console.c ui/console: remove chardev frontend connected test 2021-11-02 17:24:18 +01:00
curses_keys.h
curses.c meson.build: Support ncurses on MacOS and OpenBSD 2021-11-19 10:18:27 +01:00
cursor_hidden.xpm
cursor_left_ptr.xpm
cursor.c
egl-context.c ui: remove gl_ctx_get_current 2021-02-04 15:58:54 +01:00
egl-headless.c ui/egl-headless: Remove a check for CONFIG_OPENGL 2021-07-26 10:24:49 +02:00
egl-helpers.c ui/gtk-egl: blitting partial guest fb to the proper scanout surface 2021-11-05 12:29:44 +01:00
gtk-clipboard.c ui/gtk-clipboard: emit release clipboard events 2021-08-31 17:25:14 +04:00
gtk-egl.c ui/gtk-egl: Fix build failure when libgbm is not available 2021-11-08 12:20:13 +01:00
gtk-gl-area.c ui: fix incorrect scaling on highdpi with gtk/opengl 2021-11-22 11:13:12 +01:00
gtk.c ui/gtk: graphic_hw_gl_flushed after closing dmabuf->fence_fd 2021-11-22 11:14:28 +01:00
input-barrier.c ui/input-barrier: Move TODOs from barrier.txt to a comment 2021-08-02 12:55:51 +01:00
input-barrier.h
input-keymap.c
input-legacy.c
input-linux.c
input.c qapi: Use QAPI_LIST_PREPEND() where possible 2020-12-19 10:20:14 +01:00
kbd-state.c
keymaps.c
keymaps.h
meson.build configure, meson: move Spice configure handling to meson 2021-10-14 09:50:57 +02:00
qemu-pixman.c ui/pixman: Add qemu_pixman_to_drm_format() 2021-05-27 12:07:37 +02:00
qemu-x509.h
qemu.desktop
sdl2-2d.c ui/console: Pass placeholder surface to displays 2021-03-04 09:35:36 +01:00
sdl2-gl.c ui/console: Pass placeholder surface to displays 2021-03-04 09:35:36 +01:00
sdl2-input.c
sdl2.c ui/sdl2: Check return value from g_setenv() 2021-08-10 10:56:39 +02:00
shader.c
spice-app.c ui/spice: Use HAVE_SPICE_GL for OpenGL checks 2021-07-26 10:24:49 +02:00
spice-core.c error: Use error_fatal to simplify obvious fatal errors (again) 2021-08-26 17:15:28 +02:00
spice-display.c ui/spice-display: check NULL pointer in interface_release_resource() 2021-05-21 09:42:44 +02:00
spice-input.c
spice-module.c
trace-events ui/vdagent: send empty clipboard when unhandled 2021-08-31 17:25:14 +04:00
trace.h
udmabuf.c ui/console: Restrict udmabuf_fd() to Linux 2021-08-31 14:31:43 +02:00
vdagent.c ui/vdagent: add a migration blocker 2021-08-31 17:25:14 +04:00
vgafont.h
vnc_keysym.h
vnc-auth-sasl.c vnc: avoid deprecation warnings for SASL on OS X 2021-06-15 17:17:09 +02:00
vnc-auth-sasl.h vnc: avoid deprecation warnings for SASL on OS X 2021-06-15 17:17:09 +02:00
vnc-auth-vencrypt.c
vnc-auth-vencrypt.h
vnc-clipboard.c ui/vnc-clipboard: fix adding notifier twice 2021-11-22 11:14:28 +01:00
vnc-enc-hextile-template.h
vnc-enc-hextile.c
vnc-enc-tight.c
vnc-enc-tight.h
vnc-enc-zlib.c
vnc-enc-zrle.c
vnc-enc-zrle.c.inc
vnc-enc-zrle.h
vnc-enc-zywrle-template.c
vnc-enc-zywrle.h
vnc-jobs.c ui: avoid sending framebuffer updates outside client desktop bounds 2021-03-15 17:37:50 +01:00
vnc-jobs.h
vnc-palette.c
vnc-palette.h
vnc-stubs.c vnc: support "-vnc help" 2021-01-23 15:55:07 -05:00
vnc-ws.c
vnc-ws.h
vnc.c crypto: replace 'des-rfb' cipher with 'des' 2021-07-14 14:15:52 +01:00
vnc.h ui/vnc: clipboard support 2021-05-21 09:42:44 +02:00
win32-kbd-hook.c
x_keymap.c ui: Fix memory leak in qemu_xkeymap_mapping_table() 2021-05-02 17:24:50 +02:00
x_keymap.h