| 1 | /*
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| 2 | * Copyright (c) 2011 Vojtech Horky
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| 3 | * Copyright (c) 2011 Jiri Svoboda
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | /** @addtogroup libc
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| 31 | * @{
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| 32 | */
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| 33 |
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| 34 | #ifndef LIBC_IO_LOG_H_
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| 35 | #define LIBC_IO_LOG_H_
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| 36 |
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| 37 | #include <stdarg.h>
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| 38 | #include <inttypes.h>
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| 39 | #include <io/verify.h>
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| 40 |
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| 41 | /** Log message level. */
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| 42 | typedef enum {
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| 43 | /** Fatal error, program is not able to recover at all. */
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| 44 | LVL_FATAL,
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| 45 | /** Serious error but the program can recover from it. */
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| 46 | LVL_ERROR,
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| 47 | /** Easily recoverable problem. */
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| 48 | LVL_WARN,
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| 49 | /** Information message that ought to be printed by default. */
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| 50 | LVL_NOTE,
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| 51 | /** Debugging purpose message. */
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| 52 | LVL_DEBUG,
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| 53 | /** More detailed debugging message. */
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| 54 | LVL_DEBUG2,
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| 55 |
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| 56 | /** For checking range of values */
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| 57 | LVL_LIMIT
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| 58 | } log_level_t;
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| 59 |
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| 60 | /** Log itself (logging target). */
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| 61 | typedef sysarg_t log_t;
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| 62 | /** Formatting directive for printing log_t. */
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| 63 | #define PRIlogctx PRIxn
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| 64 |
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| 65 | /** Default log (target). */
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| 66 | #define LOG_DEFAULT ((log_t) -1)
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| 67 |
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| 68 | /** Use when creating new top-level log. */
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| 69 | #define LOG_NO_PARENT ((log_t) 0)
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| 70 |
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| 71 | extern const char *log_level_str(log_level_t);
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| 72 | extern int log_level_from_str(const char *, log_level_t *);
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| 73 |
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| 74 | extern int log_init(const char *);
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| 75 | extern log_t log_create(const char *, log_t);
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| 76 |
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| 77 | extern void log_msg(log_t, log_level_t, const char *, ...)
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| 78 | PRINTF_ATTRIBUTE(3, 4);
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| 79 | extern void log_msgv(log_t, log_level_t, const char *, va_list);
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| 80 |
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| 81 | #endif
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| 82 |
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| 83 | /** @}
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| 84 | */
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