mutter/src/errors.c

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/* Metacity X error handling */
/*
* Copyright (C) 2001 Havoc Pennington, error trapping inspired by GDK
* code copyrighted by the GTK team.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
#include "errors.h"
#include <errno.h>
#include <stdlib.h>
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#include <gdk/gdk.h>
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static int (* saved_gdk_error_handler) (Display *display,
XErrorEvent *error);
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static int (* saved_gdk_io_error_handler) (Display *display);
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static int x_error_handler (Display *display,
XErrorEvent *error);
static int x_io_error_handler (Display *display);
void
meta_errors_init (void)
{
saved_gdk_error_handler = XSetErrorHandler (x_error_handler);
saved_gdk_io_error_handler = XSetIOErrorHandler (x_io_error_handler);
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}
void
meta_error_trap_push (MetaDisplay *display)
{
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gdk_error_trap_push ();
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}
int
meta_error_trap_pop (MetaDisplay *display)
{
/* just use GDK trap */
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XSync (display->xdisplay, False);
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return gdk_error_trap_pop ();
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}
static int
x_error_handler (Display *xdisplay,
XErrorEvent *error)
{
int retval;
gchar buf[64];
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XGetErrorText (xdisplay, error->error_code, buf, 63);
meta_verbose ("X error: %s serial %ld error_code %d request_code %d minor_code %d)\n",
buf,
error->serial,
error->error_code,
error->request_code,
error->minor_code);
retval = saved_gdk_error_handler (xdisplay, error);
return retval;
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}
static int
x_io_error_handler (Display *xdisplay)
{
MetaDisplay *display;
display = meta_display_for_x_display (xdisplay);
if (display == NULL)
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meta_bug ("IO error received for unknown display?\n");
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if (errno == EPIPE)
{
meta_warning (_("Lost connection to the display '%s';\n"
"most likely the X server was shut down or you killed/destroyed\n"
"the window manager.\n"),
display->name);
}
else
{
meta_warning (_("Fatal IO error %d (%s) on display '%s'.\n"),
errno, g_strerror (errno),
display->name);
}
/* Xlib would force an exit anyhow */
exit (1);
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return 0;
}