123 lines
2.8 KiB
C
123 lines
2.8 KiB
C
/*
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* Copyright (C) 2002 Red Hat, Inc.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <sys/types.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <signal.h>
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#ifndef TRUE
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#define TRUE 1
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#endif
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#ifndef FALSE
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#define FALSE 0
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#endif
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#ifndef NULL
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#define NULL ((void*) 0)
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#endif
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#ifdef HAVE_BACKTRACE
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#include <execinfo.h>
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static void
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print_backtrace (void)
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{
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void *bt[500];
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int bt_size;
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int i;
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char **syms;
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bt_size = backtrace (bt, 500);
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syms = backtrace_symbols (bt, bt_size);
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i = 0;
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while (i < bt_size)
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{
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fprintf (stderr, " %s\n", syms[i]);
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++i;
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}
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free (syms);
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}
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#else
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static void
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print_backtrace (void)
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{
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fprintf (stderr, "Not compiled with backtrace support\n");
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}
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#endif
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static int error_trap_depth = 0;
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static int
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x_error_handler (Display *xdisplay,
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XErrorEvent *error)
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{
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char buf[64];
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XGetErrorText (xdisplay, error->error_code, buf, 63);
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if (error_trap_depth == 0)
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{
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print_backtrace ();
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fprintf (stderr, "Unexpected X error: %s serial %ld error_code %d request_code %d minor_code %d)\n",
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buf,
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error->serial,
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error->error_code,
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error->request_code,
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error->minor_code);
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exit (1);
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}
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return 1; /* return value is meaningless */
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}
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static void
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error_trap_push (SnDisplay *display,
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Display *xdisplay)
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{
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++error_trap_depth;
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}
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static void
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error_trap_pop (SnDisplay *display,
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Display *xdisplay)
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{
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if (error_trap_depth == 0)
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{
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fprintf (stderr, "Error trap underflow!\n");
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exit (1);
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}
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XSync (xdisplay, False); /* get all errors out of the queue */
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--error_trap_depth;
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}
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