| | 1 | /* Copyright (C) 2009 Pierre-Marc Fournier |
| | 2 | * |
| | 3 | * This library is free software; you can redistribute it and/or |
| | 4 | * modify it under the terms of the GNU Lesser General Public |
| | 5 | * License as published by the Free Software Foundation; either |
| | 6 | * version 2.1 of the License, or (at your option) any later version. |
| | 7 | * |
| | 8 | * This library is distributed in the hope that it will be useful, |
| | 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| | 11 | * Lesser General Public License for more details. |
| | 12 | * |
| | 13 | * You should have received a copy of the GNU Lesser General Public |
| | 14 | * License along with this library; if not, write to the Free Software |
| | 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| | 16 | */ |
| | 17 | |
| | 18 | #ifndef _USTERR_H |
| | 19 | #define _USTERR_H |
| | 20 | |
| | 21 | #include <string.h> |
| | 22 | #include <sys/types.h> |
| | 23 | #include <sys/syscall.h> |
| | 24 | #include <errno.h> |
| | 25 | #include <stdarg.h> |
| | 26 | #include <stdio.h> |
| | 27 | |
| | 28 | #include <ust/core.h> |
| | 29 | |
| | 30 | #include "share.h" |
| | 31 | |
| | 32 | #ifndef UST_COMPONENT |
| | 33 | #define UST_COMPONENT libust |
| | 34 | #endif |
| | 35 | |
| | 36 | /* To stringify the expansion of a define */ |
| | 37 | #define XSTR(d) STR(d) |
| | 38 | #define STR(s) #s |
| | 39 | |
| | 40 | /* A dummy function to force format checking */ |
| | 41 | static inline void __attribute__ ((format (printf, 1, 2))) |
| | 42 | __check_ust_safe_fmt(const char *fmt, ...) |
| | 43 | { |
| | 44 | } |
| | 45 | |
| | 46 | #define UST_STR_COMPONENT XSTR(UST_COMPONENT) |
| | 47 | |
| | 48 | #define ERRMSG(fmt, args...) do { fprintf(stderr, UST_STR_COMPONENT "[%ld/%ld]: " fmt " (in %s() at " __FILE__ ":" XSTR(__LINE__) ")\n", (long) getpid(), (long) syscall(SYS_gettid), ## args, __func__); } while(0) |
| | 49 | |
| | 50 | #ifdef UST_DEBUG |
| | 51 | # define DBG(fmt, args...) ERRMSG(fmt, ## args) |
| | 52 | # define DBG_raw(fmt, args...) do { fprintf(stderr, fmt, ## args); } while(0) |
| | 53 | #else |
| | 54 | # define DBG(fmt, args...) __check_ust_safe_fmt(fmt, ## args) |
| | 55 | # define DBG_raw(fmt, args...) __check_ust_safe_fmt(fmt, ## args) |
| | 56 | #endif |
| | 57 | #define WARN(fmt, args...) ERRMSG("Warning: " fmt, ## args) |
| | 58 | #define ERR(fmt, args...) ERRMSG("Error: " fmt, ## args) |
| | 59 | #define BUG(fmt, args...) ERRMSG("BUG: " fmt, ## args) |
| | 60 | |
| | 61 | #if (_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && !defined(_GNU_SOURCE) |
| | 62 | #define PERROR(call, args...)\ |
| | 63 | do { \ |
| | 64 | char buf[200] = "Error in strerror_r()"; \ |
| | 65 | strerror_r(errno, buf, sizeof(buf)); \ |
| | 66 | ERRMSG("Error: " call ": %s", ## args, buf); \ |
| | 67 | } while(0); |
| | 68 | #else |
| | 69 | #define PERROR(call, args...)\ |
| | 70 | do { \ |
| | 71 | char *buf; \ |
| | 72 | char tmp[200]; \ |
| | 73 | buf = strerror_r(errno, tmp, sizeof(tmp)); \ |
| | 74 | ERRMSG("Error: " call ": %s", ## args, buf); \ |
| | 75 | } while(0); |
| | 76 | #endif |
| | 77 | |
| | 78 | #define BUG_ON(condition) do { if (unlikely(condition)) ERR("condition not respected (BUG)"); } while(0) |
| | 79 | #define WARN_ON(condition) do { if (unlikely(condition)) WARN("condition not respected on line %s:%d", __FILE__, __LINE__); } while(0) |
| | 80 | #define WARN_ON_ONCE(condition) WARN_ON(condition) |
| | 81 | |
| | 82 | #endif /* _USTERR_H */ |
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