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| 1 | /* |
| 2 | * misc/diag.h - Diagnostics |
| 3 | * |
| 4 | * Written 2016 by Werner Almesberger |
| 5 | * Copyright 2016 by Werner Almesberger |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | */ |
| 12 | |
| 13 | |
| 14 | #include <stdarg.h> |
| 15 | #include <stdlib.h> |
| 16 | #include <stdio.h> |
| 17 | #include <string.h> |
| 18 | #include <errno.h> |
| 19 | |
| 20 | |
| 21 | #include "misc/diag.h" |
| 22 | |
| 23 | |
| 24 | unsigned verbose = 0; |
| 25 | |
| 26 | |
| 27 | /* ----- Specialized diagnostic functions ---------------------------------- */ |
| 28 | |
| 29 | |
| 30 | void diag_pfatal(const char *s) |
| 31 | { |
| 32 | fatal("%s: %s\n", s, strerror(errno)); |
| 33 | } |
| 34 | |
| 35 | |
| 36 | void diag_perror(const char *s) |
| 37 | { |
| 38 | error("%s: %s\n", s, strerror(errno)); |
| 39 | } |
| 40 | |
| 41 | |
| 42 | /* ----- General diagnostic functions -------------------------------------- */ |
| 43 | |
| 44 | void fatal(const char *fmt, ...) |
| 45 | { |
| 46 | va_list ap; |
| 47 | |
| 48 | va_start(ap, fmt); |
| 49 | vfprintf(stderr, fmt, ap); |
| 50 | va_end(ap); |
| 51 | fprintf(stderr, "\n"); |
| 52 | exit(1); /* @@@ for now ... */ |
| 53 | } |
| 54 | |
| 55 | |
| 56 | void error(const char *fmt, ...) |
| 57 | { |
| 58 | va_list ap; |
| 59 | |
| 60 | va_start(ap, fmt); |
| 61 | vfprintf(stderr, fmt, ap); |
| 62 | va_end(ap); |
| 63 | fprintf(stderr, "\n"); |
| 64 | } |
| 65 | |
| 66 | |
| 67 | void warning(const char *fmt, ...) |
| 68 | { |
| 69 | va_list ap; |
| 70 | |
| 71 | va_start(ap, fmt); |
| 72 | fprintf(stderr, "warning: "); |
| 73 | vfprintf(stderr, fmt, ap); |
| 74 | va_end(ap); |
| 75 | fprintf(stderr, "\n"); |
| 76 | } |
| 77 | |
| 78 | |
| 79 | void progress(unsigned level, const char *fmt, ...) |
| 80 | { |
| 81 | va_list ap; |
| 82 | |
| 83 | if (level > verbose) |
| 84 | return; |
| 85 | va_start(ap, fmt); |
| 86 | fprintf(stderr, "%*s", level * 2, ""); |
| 87 | vfprintf(stderr, fmt, ap); |
| 88 | va_end(ap); |
| 89 | fprintf(stderr, "\n"); |
| 90 | } |
| 91 |
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