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xwayland: Make XSetIOErrorExitHandler() mandatory

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Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2718>
This commit is contained in:
Jonas Ådahl 2022-05-28 20:18:41 +02:00 committed by Marge Bot
parent 7e974ba6cc
commit 0e8aaebc00
3 changed files with 15 additions and 33 deletions
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3
config.h.meson
View File

@ -95,9 +95,6 @@
/* Whether Xwayland has -listenfd option */
#mesondefine HAVE_XWAYLAND_LISTENFD
/* Whether libX11 has XSetIOErrorExitHandler */
#mesondefine HAVE_XSETIOERROREXITHANDLER
/* Whether the mkostemp function exists */
#mesondefine HAVE_MKOSTEMP

13
meson.build
View File

@ -28,6 +28,7 @@ cairo_req = '>= 1.10.0'
pangocairo_req = '>= 1.20'
gsettings_desktop_schemas_req = '>= 40.alpha'
json_glib_req = '>= 0.12.0'
x11_req = '>= 1.7.0'
xcomposite_req = '>= 0.4'
xkbcommon_req = '>= 0.4.3'
xfixes_req = '>= 6'
@ -145,7 +146,7 @@ if not have_wayland and not have_x11
endif
if have_x11_client
x11_dep = dependency('x11')
x11_dep = dependency('x11', version: x11_req)
xcomposite_dep = dependency('xcomposite', version: xcomposite_req)
xcursor_dep = dependency('xcursor')
xdamage_dep = dependency('xdamage')
@ -591,15 +592,6 @@ if have_xwayland
endif
endif
have_xsetioerrorexithandler = false
if have_x11_client
if cc.has_function('XSetIOErrorExitHandler', dependencies: x11_dep,
prefix: '''#include <X11/Xlib.h>''')
have_xsetioerrorexithandler = true
cdata.set('HAVE_XSETIOERROREXITHANDLER', 1)
endif
endif
optional_functions = [
'mkostemp',
'posix_fallocate',
@ -678,7 +670,6 @@ summary('Documentation', have_documentation, section: 'Options')
summary('Profiler', have_profiler, section: 'Options')
summary('Xwayland initfd', have_xwayland_initfd, section: 'Options')
summary('Xwayland listenfd', have_xwayland_listenfd, section: 'Options')
summary('Safe X11 I/O errors', have_xsetioerrorexithandler, section: 'Options')
summary('Xwayland terminate delay', have_xwayland_terminate_delay, section: 'Options')
summary('Enabled', have_tests, section: 'Tests')

30
src/wayland/meta-xwayland.c
View File

@ -455,16 +455,8 @@ meta_xwayland_terminate (MetaXWaylandManager *manager)
static int
x_io_error (Display *display)
{
MetaWaylandCompositor *compositor = meta_wayland_compositor_get_default ();
MetaX11DisplayPolicy x11_display_policy;
g_warning ("Connection to xwayland lost");
x11_display_policy =
meta_context_get_x11_display_policy (compositor->context);
if (x11_display_policy == META_X11_DISPLAY_POLICY_MANDATORY)
meta_exit (META_EXIT_ERROR);
return 0;
}
@ -474,29 +466,37 @@ x_io_error_noop (Display *display)
return 0;
}
#ifdef HAVE_XSETIOERROREXITHANDLER
static void
x_io_error_exit (Display *display,
void *data)
{
MetaXWaylandManager *manager = data;
MetaContext *context = manager->compositor->context;
MetaX11DisplayPolicy x11_display_policy;
x11_display_policy =
meta_context_get_x11_display_policy (manager->compositor->context);
meta_context_get_x11_display_policy (context);
if (x11_display_policy == META_X11_DISPLAY_POLICY_MANDATORY)
g_warning ("X Wayland crashed (X IO error)");
{
GError *error;
g_warning ("Xwayland terminated, exiting since it was mandatory");
error = g_error_new (G_IO_ERROR, G_IO_ERROR_FAILED,
"Xwayland exited unexpectedly");
meta_context_terminate_with_error (context, error);
}
else
{
meta_topic (META_DEBUG_WAYLAND, "Xwayland disappeared");
}
}
static void
x_io_error_exit_noop (Display *display,
void *data)
{
}
#endif
void
meta_xwayland_override_display_number (int number)
@ -1114,9 +1114,7 @@ meta_xwayland_setup_xdisplay (MetaXWaylandManager *manager,
we won't reset the tty).
*/
XSetIOErrorHandler (x_io_error);
#ifdef HAVE_XSETIOERROREXITHANDLER
XSetIOErrorExitHandler (xdisplay, x_io_error_exit, manager);
#endif
XFixesSetClientDisconnectMode (xdisplay, XFixesClientDisconnectFlagTerminate);
}
@ -1131,23 +1129,19 @@ meta_xwayland_connection_release (MetaXWaylandConnection *connection)
void
meta_xwayland_shutdown (MetaXWaylandManager *manager)
{
#ifdef HAVE_XSETIOERROREXITHANDLER
MetaDisplay *display = meta_get_display ();
MetaX11Display *x11_display;
#endif
char path[256];
g_cancellable_cancel (manager->xserver_died_cancellable);
XSetIOErrorHandler (x_io_error_noop);
#ifdef HAVE_XSETIOERROREXITHANDLER
x11_display = display->x11_display;
if (x11_display)
{
XSetIOErrorExitHandler (meta_x11_display_get_xdisplay (x11_display),
x_io_error_exit_noop, NULL);
}
#endif
meta_xwayland_terminate (manager);