projects / lttng-tools.git / blame
| Commit | Line | Data |
|---|---|---|
| 826d496d MD |
1 | /* |
| 2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
| fac6795d | 3 | * |
| d14d33bf AM |
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 | * | |
| db758600 DG |
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. | |
| d14d33bf AM |
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. | |
| fac6795d DG |
16 | */ |
| 17 | ||
| db758600 DG |
18 | #ifndef _ERROR_H |
| 19 | #define _ERROR_H | |
| fac6795d DG |
20 | |
| 21 | #include <errno.h> | |
| d738ac16 | 22 | #include <stdio.h> |
| d05ea5da | 23 | #include <string.h> |
| fac6795d | 24 | |
| 4c462e79 MD |
25 | #ifndef _GNU_SOURCE |
| 26 | #error "lttng-tools error.h needs _GNU_SOURCE" | |
| 27 | #endif | |
| 28 | ||
| 57d0d501 DG |
29 | /* Stringify the expansion of a define */ |
| 30 | #define XSTR(d) STR(d) | |
| 31 | #define STR(s) #s | |
| 32 | ||
| 97e19046 DG |
33 | extern int lttng_opt_quiet; |
| 34 | extern int lttng_opt_verbose; | |
| fac6795d | 35 | |
| 75dea654 DG |
36 | #define PRINT_ERR 0x1 |
| 37 | #define PRINT_WARN 0x2 | |
| 38 | #define PRINT_BUG 0x3 | |
| 39 | #define PRINT_MSG 0x4 | |
| 40 | #define PRINT_DBG 0x10 | |
| 41 | #define PRINT_DBG2 0x20 | |
| 42 | #define PRINT_DBG3 0x30 | |
| fac6795d DG |
43 | |
| 44 | /* | |
| 75dea654 | 45 | * Macro for printing message depending on command line option and verbosity. |
| fac6795d | 46 | */ |
| 97e19046 DG |
47 | #define __lttng_print(type, fmt, args...) \ |
| 48 | do { \ | |
| 49 | if (lttng_opt_quiet == 0 && type == PRINT_MSG) { \ | |
| 50 | fprintf(stdout, fmt, ## args); \ | |
| 51 | } else if (lttng_opt_quiet == 0 && \ | |
| 52 | (((type & PRINT_DBG) && lttng_opt_verbose == 1) || \ | |
| 53 | ((type & (PRINT_DBG | PRINT_DBG2)) && \ | |
| 54 | lttng_opt_verbose == 2) || \ | |
| 55 | ((type & (PRINT_DBG | PRINT_DBG2 | PRINT_DBG3)) && \ | |
| 56 | lttng_opt_verbose == 3))) { \ | |
| 57 | fprintf(stderr, fmt, ## args); \ | |
| 58 | } else if (lttng_opt_quiet == 0 && (type & (PRINT_WARN))) { \ | |
| 59 | fprintf(stderr, fmt, ## args); \ | |
| 60 | } else if (type & (PRINT_ERR | PRINT_BUG)) { \ | |
| 61 | fprintf(stderr, fmt, ## args); \ | |
| 62 | } \ | |
| 3ce7388b | 63 | } while (0); |
| fac6795d | 64 | |
| 75dea654 DG |
65 | #define MSG(fmt, args...) \ |
| 66 | __lttng_print(PRINT_MSG, fmt "\n", ## args) | |
| f37d259d MD |
67 | #define _MSG(fmt, args...) \ |
| 68 | __lttng_print(PRINT_MSG, fmt, ## args) | |
| 75dea654 DG |
69 | #define ERR(fmt, args...) \ |
| 70 | __lttng_print(PRINT_ERR, "Error: " fmt "\n", ## args) | |
| 71 | #define WARN(fmt, args...) \ | |
| 72 | __lttng_print(PRINT_WARN, "Warning: " fmt "\n", ## args) | |
| 73 | #define BUG(fmt, args...) \ | |
| 74 | __lttng_print(PRINT_BUG, "BUG: " fmt "\n", ## args) | |
| 75 | ||
| 76 | /* Three level of debug. Use -v, -vv or -vvv for the levels */ | |
| 77 | #define DBG(fmt, args...) __lttng_print(PRINT_DBG, "DEBUG1: " fmt \ | |
| 78 | " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__) | |
| 79 | #define DBG2(fmt, args...) __lttng_print(PRINT_DBG2, "DEBUG2: " fmt \ | |
| 80 | " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__) | |
| 81 | #define DBG3(fmt, args...) __lttng_print(PRINT_DBG3, "DEBUG3: " fmt \ | |
| 82 | " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__) | |
| 83 | ||
| 84 | #define _PERROR(fmt, args...) \ | |
| 76d7553f MD |
85 | __lttng_print(PRINT_ERR, "PERROR: " fmt \ |
| 86 | " [in %s() at " __FILE__ ":" XSTR(__LINE__) "]\n", ## args, __func__) | |
| 75dea654 | 87 | |
| 818d276f | 88 | #if !defined(__linux__) || ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE)) |
| 97e19046 | 89 | |
| 818d276f MD |
90 | /* |
| 91 | * Version using XSI strerror_r. | |
| 92 | */ | |
| 93 | #define PERROR(call, args...) \ | |
| 94 | do { \ | |
| 95 | char buf[200]; \ | |
| 96 | strerror_r(errno, buf, sizeof(buf)); \ | |
| 97 | _PERROR(call ": %s", ## args, buf); \ | |
| 98 | } while(0); | |
| 99 | #else | |
| 100 | /* | |
| 101 | * Version using GNU strerror_r, for linux with appropriate defines. | |
| 102 | */ | |
| 75dea654 | 103 | #define PERROR(call, args...) \ |
| 818d276f | 104 | do { \ |
| 75dea654 DG |
105 | char *buf; \ |
| 106 | char tmp[200]; \ | |
| 107 | buf = strerror_r(errno, tmp, sizeof(tmp)); \ | |
| 108 | _PERROR(call ": %s", ## args, buf); \ | |
| 109 | } while(0); | |
| 818d276f | 110 | #endif |
| fac6795d | 111 | |
| db758600 | 112 | #endif /* _ERROR_H */ |