Make MSG() print on stdout instead of stderr
[lttng-tools.git] / include / lttngerr.h
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1/*
2 * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca>
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3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
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6 * as published by the Free Software Foundation; only version 2
7 * of the License.
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8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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17 */
18
19#ifndef _LTTNGERR_H
20#define _LTTNGERR_H
21
22#include <errno.h>
d738ac16 23#include <stdio.h>
fac6795d 24
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25/* Stringify the expansion of a define */
26#define XSTR(d) STR(d)
27#define STR(s) #s
28
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29extern int opt_quiet;
30extern int opt_verbose;
31
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32#define PRINT_ERR 0x1
33#define PRINT_WARN 0x2
34#define PRINT_BUG 0x3
35#define PRINT_MSG 0x4
36#define PRINT_DBG 0x10
37#define PRINT_DBG2 0x20
38#define PRINT_DBG3 0x30
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39
40/*
75dea654 41 * Macro for printing message depending on command line option and verbosity.
fac6795d 42 */
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43#define __lttng_print(type, fmt, args...) \
44 do { \
45 if (opt_quiet == 0) { \
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46 if (type == PRINT_MSG) { \
47 fprintf(stdout, fmt, ## args); \
48 } else if (((type & PRINT_DBG) && opt_verbose == 1) || \
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49 ((type & (PRINT_DBG | PRINT_DBG2)) && \
50 opt_verbose == 2) || \
51 ((type & (PRINT_DBG | PRINT_DBG2 | PRINT_DBG3)) && \
52 opt_verbose == 3)) { \
94484837 53 fprintf(stderr, fmt, ## args); \
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54 } else if (type & (PRINT_ERR | PRINT_WARN | PRINT_BUG)) { \
55 fprintf(stderr, fmt, ## args); \
56 } \
57 } \
3ce7388b 58 } while (0);
fac6795d 59
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60#define MSG(fmt, args...) \
61 __lttng_print(PRINT_MSG, fmt "\n", ## args)
62#define ERR(fmt, args...) \
63 __lttng_print(PRINT_ERR, "Error: " fmt "\n", ## args)
64#define WARN(fmt, args...) \
65 __lttng_print(PRINT_WARN, "Warning: " fmt "\n", ## args)
66#define BUG(fmt, args...) \
67 __lttng_print(PRINT_BUG, "BUG: " fmt "\n", ## args)
68
69/* Three level of debug. Use -v, -vv or -vvv for the levels */
70#define DBG(fmt, args...) __lttng_print(PRINT_DBG, "DEBUG1: " fmt \
71 " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__)
72#define DBG2(fmt, args...) __lttng_print(PRINT_DBG2, "DEBUG2: " fmt \
73 " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__)
74#define DBG3(fmt, args...) __lttng_print(PRINT_DBG3, "DEBUG3: " fmt \
75 " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__)
76
77#define _PERROR(fmt, args...) \
78 __lttng_print(PRINT_ERR, "perror " fmt "\n", ## args)
79
80#define PERROR(call, args...) \
81 do { \
82 char *buf; \
83 char tmp[200]; \
84 buf = strerror_r(errno, tmp, sizeof(tmp)); \
85 _PERROR(call ": %s", ## args, buf); \
86 } while(0);
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87
88#endif /* _LTTNGERR_H */
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