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annotate libmlk-core/mlk/core/panic.c @ 445:773a082f0b91

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misc: update copyright years
author David Demelier <markand@malikania.fr>
date Wed, 01 Feb 2023 13:08:54 +0100
parents 8f59201dc76b
children 01f5580e43d1
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1 /*
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2 * panic.c -- unrecoverable error handling
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3 *
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4 * Copyright (c) 2020-2023 David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #include <assert.h>
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20 #include <stdio.h>
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21 #include <stdlib.h>
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22
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23 #include "error.h"
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24 #include "panic.h"
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26 static void
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27 terminate(void)
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28 {
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29 fprintf(stderr, "abort: %s\n", error());
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30 abort();
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31 exit(1);
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32 }
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33
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34 void (*panic_handler)(void) = terminate;
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35 void *panic_data = NULL;
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36
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37 void
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38 panicf(const char *fmt, ...)
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39 {
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40 assert(fmt);
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41
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42 va_list ap;
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43
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44 /*
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45 * Store the error before calling panic because va_end would not be
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46 * called.
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47 */
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48 va_start(ap, fmt);
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49 errorva(fmt, ap);
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50 va_end(ap);
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51
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52 panic();
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53 }
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54
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55 void
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56 panicva(const char *fmt, va_list ap)
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57 {
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58 assert(fmt);
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59 assert(panic_handler);
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61 errorva(fmt, ap);
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62 panic();
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63 }
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65 void
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66 panic(void)
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67 {
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68 assert(panic_handler);
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70 panic_handler();
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72 /*
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73 * This should not happen, if it does it means the user did not fully
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74 * satisfied the constraint of panic_handler.
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75 */
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76 fprintf(stderr, "abort: panic handler returned\n");
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77 exit(1);
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78 }