Add max-size to snapshot list output
[lttng-tools.git] / src / common / error.h
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1/*
2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
fac6795d 3 *
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4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License, version 2 only,
6 * as published by the Free Software Foundation.
7 *
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8 * This program is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
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12 *
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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16 */
17
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18#ifndef _ERROR_H
19#define _ERROR_H
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20
21#include <errno.h>
d738ac16 22#include <stdio.h>
f73fabfd 23#include <stdint.h>
d05ea5da 24#include <string.h>
fac6795d 25
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26#ifndef _GNU_SOURCE
27#error "lttng-tools error.h needs _GNU_SOURCE"
28#endif
29
f73fabfd 30#include <lttng/lttng-error.h>
ffe60014 31#include <common/compat/tid.h>
f73fabfd 32
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33/* Stringify the expansion of a define */
34#define XSTR(d) STR(d)
35#define STR(s) #s
36
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37extern int lttng_opt_quiet;
38extern int lttng_opt_verbose;
fac6795d 39
ffe60014 40/* Error type. */
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41#define PRINT_ERR 0x1
42#define PRINT_WARN 0x2
43#define PRINT_BUG 0x3
44#define PRINT_MSG 0x4
45#define PRINT_DBG 0x10
46#define PRINT_DBG2 0x20
47#define PRINT_DBG3 0x30
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48
49/*
75dea654 50 * Macro for printing message depending on command line option and verbosity.
fac6795d 51 */
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52#define __lttng_print(type, fmt, args...) \
53 do { \
54 if (lttng_opt_quiet == 0 && type == PRINT_MSG) { \
55 fprintf(stdout, fmt, ## args); \
56 } else if (lttng_opt_quiet == 0 && \
57 (((type & PRINT_DBG) && lttng_opt_verbose == 1) || \
58 ((type & (PRINT_DBG | PRINT_DBG2)) && \
59 lttng_opt_verbose == 2) || \
60 ((type & (PRINT_DBG | PRINT_DBG2 | PRINT_DBG3)) && \
61 lttng_opt_verbose == 3))) { \
62 fprintf(stderr, fmt, ## args); \
63 } else if (lttng_opt_quiet == 0 && (type & (PRINT_WARN))) { \
64 fprintf(stderr, fmt, ## args); \
65 } else if (type & (PRINT_ERR | PRINT_BUG)) { \
66 fprintf(stderr, fmt, ## args); \
67 } \
3ce7388b 68 } while (0);
fac6795d 69
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70/* Three level of debug. Use -v, -vv or -vvv for the levels */
71#define _ERRMSG(msg, type, fmt, args...) __lttng_print(type, msg \
72 " [%ld/%ld]: " fmt " (in %s() at " __FILE__ ":" XSTR(__LINE__) ")\n", \
73 (long) getpid(), (long) gettid(), ## args, __func__)
74
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75#define MSG(fmt, args...) \
76 __lttng_print(PRINT_MSG, fmt "\n", ## args)
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77#define _MSG(fmt, args...) \
78 __lttng_print(PRINT_MSG, fmt, ## args)
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79#define ERR(fmt, args...) \
80 __lttng_print(PRINT_ERR, "Error: " fmt "\n", ## args)
81#define WARN(fmt, args...) \
82 __lttng_print(PRINT_WARN, "Warning: " fmt "\n", ## args)
75dea654 83
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84#define BUG(fmt, args...) _ERRMSG("BUG", PRINT_BUG, fmt, ## args)
85
86#define DBG(fmt, args...) _ERRMSG("DEBUG1", PRINT_DBG, fmt, ## args)
87#define DBG2(fmt, args...) _ERRMSG("DEBUG2", PRINT_DBG2, fmt, ## args)
88#define DBG3(fmt, args...) _ERRMSG("DEBUG3", PRINT_DBG3, fmt, ## args)
89
90#define _PERROR(fmt, args...) _ERRMSG("PERROR", PRINT_ERR, fmt, ## args)
75dea654 91
818d276f 92#if !defined(__linux__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE))
97e19046 93
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94/*
95 * Version using XSI strerror_r.
96 */
97#define PERROR(call, args...) \
98 do { \
99 char buf[200]; \
100 strerror_r(errno, buf, sizeof(buf)); \
101 _PERROR(call ": %s", ## args, buf); \
102 } while(0);
103#else
104/*
105 * Version using GNU strerror_r, for linux with appropriate defines.
106 */
75dea654 107#define PERROR(call, args...) \
818d276f 108 do { \
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109 char *buf; \
110 char tmp[200]; \
111 buf = strerror_r(errno, tmp, sizeof(tmp)); \
112 _PERROR(call ": %s", ## args, buf); \
113 } while(0);
818d276f 114#endif
fac6795d 115
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116const char *error_get_str(int32_t code);
117
db758600 118#endif /* _ERROR_H */
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